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Diffstat (limited to 'vendor/maunium.net/go/tview')
29 files changed, 0 insertions, 8963 deletions
diff --git a/vendor/maunium.net/go/tview/CODE_OF_CONDUCT.md b/vendor/maunium.net/go/tview/CODE_OF_CONDUCT.md deleted file mode 100644 index 601e63b..0000000 --- a/vendor/maunium.net/go/tview/CODE_OF_CONDUCT.md +++ /dev/null @@ -1,73 +0,0 @@ -# Contributor Covenant Code of Conduct - -## Our Pledge - -In the interest of fostering an open and welcoming environment, we as -contributors and maintainers pledge to making participation in our project and -our community a harassment-free experience for everyone, regardless of age, body -size, disability, ethnicity, gender identity and expression, level of experience, -education, socio-economic status, nationality, personal appearance, race, -religion, or sexual identity and orientation. - -## Our Standards - -Examples of behavior that contributes to creating a positive environment -include: - -* Using welcoming and inclusive language -* Being respectful of differing viewpoints and experiences -* Gracefully accepting constructive criticism -* Focusing on what is best for the community -* Showing empathy towards other community members - -Examples of unacceptable behavior by participants include: - -* The use of sexualized language or imagery and unwelcome sexual attention or - advances -* Trolling, insulting/derogatory comments, and personal or political attacks -* Public or private harassment -* Publishing others' private information, such as a physical or electronic - address, without explicit permission -* Other conduct which could reasonably be considered inappropriate in a - professional setting - -## Our Responsibilities - -Project maintainers are responsible for clarifying the standards of acceptable -behavior and are expected to take appropriate and fair corrective action in -response to any instances of unacceptable behavior. - -Project maintainers have the right and responsibility to remove, edit, or -reject comments, commits, code, wiki edits, issues, and other contributions -that are not aligned to this Code of Conduct, or to ban temporarily or -permanently any contributor for other behaviors that they deem inappropriate, -threatening, offensive, or harmful. - -## Scope - -This Code of Conduct applies both within project spaces and in public spaces -when an individual is representing the project or its community. Examples of -representing a project or community include using an official project e-mail -address, posting via an official social media account, or acting as an appointed -representative at an online or offline event. Representation of a project may be -further defined and clarified by project maintainers. - -## Enforcement - -Instances of abusive, harassing, or otherwise unacceptable behavior may be -reported by contacting the project team at https://rentafounder.com/page/about-me/. All -complaints will be reviewed and investigated and will result in a response that -is deemed necessary and appropriate to the circumstances. The project team is -obligated to maintain confidentiality with regard to the reporter of an incident. -Further details of specific enforcement policies may be posted separately. - -Project maintainers who do not follow or enforce the Code of Conduct in good -faith may face temporary or permanent repercussions as determined by other -members of the project's leadership. - -## Attribution - -This Code of Conduct is adapted from the [Contributor Covenant][homepage], version 1.4, -available at https://www.contributor-covenant.org/version/1/4/code-of-conduct.html - -[homepage]: https://www.contributor-covenant.org diff --git a/vendor/maunium.net/go/tview/CONTRIBUTING.md b/vendor/maunium.net/go/tview/CONTRIBUTING.md deleted file mode 100644 index 0d96292..0000000 --- a/vendor/maunium.net/go/tview/CONTRIBUTING.md +++ /dev/null @@ -1,31 +0,0 @@ -# Contributing to tview - -First of all, thank you for taking the time to contribute. - -The following provides you with some guidance on how to contribute to this project. Mainly, it is meant to save us all some time so please read it, it's not long. - -Please note that this document is work in progress so I might add to it in the future. - -## Issues - -- Please include enough information so everybody understands your request. -- Screenshots or code that illustrates your point always helps. -- It's fine to ask for help. But you should have checked out the [documentation](https://godoc.org/github.com/rivo/tview) first in any case. -- If you request a new feature, state your motivation and share a use case that you faced where you needed that new feature. It should be something that others will also need. - -## Pull Requests - -If you have a feature request, open an issue first before sending me a pull request. It may save you from writing code that will get rejected. If your case is strong, there is a good chance that I will add the feature for you. - -I'm very picky about the code that goes into this repo. So if you violate any of the following guidelines, there is a good chance I won't merge your pull request. - -- There must be a strong case for your additions/changes, such as: - - Bug fixes - - Features that are needed (see "Issues" above; state your motivation) - - Improvements in stability or performance (if readability does not suffer) -- Your code must follow the structure of the existing code. Don't just patch something on. Try to understand how `tview` is currently designed and follow that design. Your code needs to be consistent with existing code. -- If you're adding code that increases the work required to maintain the project, you must be willing to take responsibility for that extra work. I will ask you to maintain your part of the code in the long run. -- Function/type/variable/constant names must be as descriptive as they are right now. Follow the conventions of the package. -- All functions/types/variables/constants, even private ones, must have comments in good English. These comments must be elaborate enough so that new users of the package understand them and can follow them. Provide examples if you have to. -- Your changes must not decrease the project's [Go Report](https://goreportcard.com/report/github.com/rivo/tview) rating. -- No breaking changes unless there is absolutely no other way. diff --git a/vendor/maunium.net/go/tview/LICENSE.txt b/vendor/maunium.net/go/tview/LICENSE.txt deleted file mode 100644 index 9d69430..0000000 --- a/vendor/maunium.net/go/tview/LICENSE.txt +++ /dev/null @@ -1,21 +0,0 @@ -MIT License - -Copyright (c) 2018 Oliver Kuederle - -Permission is hereby granted, free of charge, to any person obtaining a copy -of this software and associated documentation files (the "Software"), to deal -in the Software without restriction, including without limitation the rights -to use, copy, modify, merge, publish, distribute, sublicense, and/or sell -copies of the Software, and to permit persons to whom the Software is -furnished to do so, subject to the following conditions: - -The above copyright notice and this permission notice shall be included in all -copies or substantial portions of the Software. - -THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR -IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, -FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE -AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER -LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, -OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE -SOFTWARE. diff --git a/vendor/maunium.net/go/tview/README.md b/vendor/maunium.net/go/tview/README.md deleted file mode 100644 index 7ce06a2..0000000 --- a/vendor/maunium.net/go/tview/README.md +++ /dev/null @@ -1,108 +0,0 @@ -# Rich Interactive Widgets for Terminal UIs - -[](https://godoc.org/github.com/rivo/tview) -[](https://goreportcard.com/report/github.com/rivo/tview) - -This Go package provides commonly needed components for terminal based user interfaces. - - - -Among these components are: - -- __Input forms__ (include __input/password fields__, __drop-down selections__, __checkboxes__, and __buttons__) -- Navigable multi-color __text views__ -- Sophisticated navigable __table views__ -- Flexible __tree views__ -- Selectable __lists__ -- __Grid__, __Flexbox__ and __page layouts__ -- Modal __message windows__ -- An __application__ wrapper - -They come with lots of customization options and can be easily extended to fit your needs. - -## Installation - -```bash -go get github.com/rivo/tview -``` - -## Hello World - -This basic example creates a box titled "Hello, World!" and displays it in your terminal: - -```go -package main - -import ( - "github.com/rivo/tview" -) - -func main() { - box := tview.NewBox().SetBorder(true).SetTitle("Hello, world!") - if err := tview.NewApplication().SetRoot(box, true).Run(); err != nil { - panic(err) - } -} -``` - -Check out the [GitHub Wiki](https://github.com/rivo/tview/wiki) for more examples along with screenshots. Or try the examples in the "demos" subdirectory. - -For a presentation highlighting this package, compile and run the program found in the "demos/presentation" subdirectory. - -## Documentation - -Refer to https://godoc.org/github.com/rivo/tview for the package's documentation. - -## Dependencies - -This package is based on [maunium.net/go/tcell](https://maunium.net/go/tcell) (and its dependencies). - -## Your Feedback - -Add your issue here on GitHub. Feel free to get in touch if you have any questions. - -## Version History - -(There are no corresponding tags in the project. I only keep such a history in this README.) - -- v0.19 (2018-10-28) - - Added `QueueUpdate()` and `QueueEvent()` to `Application` to help with modifications to primitives from goroutines. -- v0.18 (2018-10-18) - - `InputField` elements can now be navigated freely. -- v0.17 (2018-06-20) - - Added `TreeView`. -- v0.15 (2018-05-02) - - `Flex` and `Grid` don't clear their background per default, thus allowing for custom modals. See the [Wiki](https://github.com/rivo/tview/wiki/Modal) for an example. -- v0.14 (2018-04-13) - - Added an `Escape()` function which keep strings like color or region tags from being recognized as such. - - Added `ANSIWriter()` and `TranslateANSI()` which convert ANSI escape sequences to `tview` color tags. -- v0.13 (2018-04-01) - - Added background colors and text attributes to color tags. -- v0.12 (2018-03-13) - - Added "suspended mode" to `Application`. -- v0.11 (2018-03-02) - - Added a `RemoveItem()` function to `Grid` and `Flex`. -- v0.10 (2018-02-22) - - Direct access to the `screen` object through callback in `Box` (i.e. for all primitives). -- v0.9 (2018-02-20) - - Introduced `Grid` layout. - - Direct access to the `screen` object through callbacks in `Application`. -- v0.8 (2018-01-17) - - Color tags can now be used almost everywhere. -- v0.7 (2018-01-16) - - Forms can now also have a horizontal layout. -- v0.6 (2018-01-14) - - All primitives can now intercept all key events when they have focus. - - Key events can also be intercepted globally (changed to a more general, consistent handling) -- v0.5 (2018-01-13) - - `TextView` now has word wrapping and text alignment -- v0.4 (2018-01-12) - - `TextView` now accepts color tags with any W3C color (including RGB hex values). - - Support for wide unicode characters. -- v0.3 (2018-01-11) - - Added masking to `InputField` and password entry to `Form`. -- v0.2 (2018-01-10) - - Added `Styles` variable with default colors for primitives. - - Completed some missing InputField functions. -- v0.1 (2018-01-06) - - First Release. diff --git a/vendor/maunium.net/go/tview/ansi.go b/vendor/maunium.net/go/tview/ansi.go deleted file mode 100644 index 4d14c28..0000000 --- a/vendor/maunium.net/go/tview/ansi.go +++ /dev/null @@ -1,237 +0,0 @@ -package tview - -import ( - "bytes" - "fmt" - "io" - "strconv" - "strings" -) - -// The states of the ANSI escape code parser. -const ( - ansiText = iota - ansiEscape - ansiSubstring - ansiControlSequence -) - -// ansi is a io.Writer which translates ANSI escape codes into tview color -// tags. -type ansi struct { - io.Writer - - // Reusable buffers. - buffer *bytes.Buffer // The entire output text of one Write(). - csiParameter, csiIntermediate *bytes.Buffer // Partial CSI strings. - - // The current state of the parser. One of the ansi constants. - state int -} - -// ANSIWriter returns an io.Writer which translates any ANSI escape codes -// written to it into tview color tags. Other escape codes don't have an effect -// and are simply removed. The translated text is written to the provided -// writer. -func ANSIWriter(writer io.Writer) io.Writer { - return &ansi{ - Writer: writer, - buffer: new(bytes.Buffer), - csiParameter: new(bytes.Buffer), - csiIntermediate: new(bytes.Buffer), - state: ansiText, - } -} - -// Write parses the given text as a string of runes, translates ANSI escape -// codes to color tags and writes them to the output writer. -func (a *ansi) Write(text []byte) (int, error) { - defer func() { - a.buffer.Reset() - }() - - for _, r := range string(text) { - switch a.state { - - // We just entered an escape sequence. - case ansiEscape: - switch r { - case '[': // Control Sequence Introducer. - a.csiParameter.Reset() - a.csiIntermediate.Reset() - a.state = ansiControlSequence - case 'c': // Reset. - fmt.Fprint(a.buffer, "[-:-:-]") - a.state = ansiText - case 'P', ']', 'X', '^', '_': // Substrings and commands. - a.state = ansiSubstring - default: // Ignore. - a.state = ansiText - } - - // CSI Sequences. - case ansiControlSequence: - switch { - case r >= 0x30 && r <= 0x3f: // Parameter bytes. - if _, err := a.csiParameter.WriteRune(r); err != nil { - return 0, err - } - case r >= 0x20 && r <= 0x2f: // Intermediate bytes. - if _, err := a.csiIntermediate.WriteRune(r); err != nil { - return 0, err - } - case r >= 0x40 && r <= 0x7e: // Final byte. - switch r { - case 'E': // Next line. - count, _ := strconv.Atoi(a.csiParameter.String()) - if count == 0 { - count = 1 - } - fmt.Fprint(a.buffer, strings.Repeat("\n", count)) - case 'm': // Select Graphic Rendition. - var ( - background, foreground, attributes string - clearAttributes bool - ) - fields := strings.Split(a.csiParameter.String(), ";") - if len(fields) == 0 || len(fields) == 1 && fields[0] == "0" { - // Reset. - if _, err := a.buffer.WriteString("[-:-:-]"); err != nil { - return 0, err - } - break - } - lookupColor := func(colorNumber int, bright bool) string { - if colorNumber < 0 || colorNumber > 7 { - return "black" - } - if bright { - colorNumber += 8 - } - return [...]string{ - "black", - "red", - "green", - "yellow", - "blue", - "darkmagenta", - "darkcyan", - "white", - "#7f7f7f", - "#ff0000", - "#00ff00", - "#ffff00", - "#5c5cff", - "#ff00ff", - "#00ffff", - "#ffffff", - }[colorNumber] - } - for index, field := range fields { - switch field { - case "1", "01": - attributes += "b" - case "2", "02": - attributes += "d" - case "4", "04": - attributes += "u" - case "5", "05": - attributes += "l" - case "7", "07": - attributes += "7" - case "22", "24", "25", "27": - clearAttributes = true - case "30", "31", "32", "33", "34", "35", "36", "37": - colorNumber, _ := strconv.Atoi(field) - foreground = lookupColor(colorNumber-30, false) - case "40", "41", "42", "43", "44", "45", "46", "47": - colorNumber, _ := strconv.Atoi(field) - background = lookupColor(colorNumber-40, false) - case "90", "91", "92", "93", "94", "95", "96", "97": - colorNumber, _ := strconv.Atoi(field) - foreground = lookupColor(colorNumber-90, true) - case "100", "101", "102", "103", "104", "105", "106", "107": - colorNumber, _ := strconv.Atoi(field) - background = lookupColor(colorNumber-100, true) - case "38", "48": - var color string - if len(fields) > index+1 { - if fields[index+1] == "5" && len(fields) > index+2 { // 8-bit colors. - colorNumber, _ := strconv.Atoi(fields[index+2]) - if colorNumber <= 7 { - color = lookupColor(colorNumber, false) - } else if colorNumber <= 15 { - color = lookupColor(colorNumber, true) - } else if colorNumber <= 231 { - red := (colorNumber - 16) / 36 - green := ((colorNumber - 16) / 6) % 6 - blue := (colorNumber - 16) % 6 - color = fmt.Sprintf("#%02x%02x%02x", 255*red/5, 255*green/5, 255*blue/5) - } else if colorNumber <= 255 { - grey := 255 * (colorNumber - 232) / 23 - color = fmt.Sprintf("#%02x%02x%02x", grey, grey, grey) - } - } else if fields[index+1] == "2" && len(fields) > index+4 { // 24-bit colors. - red, _ := strconv.Atoi(fields[index+2]) - green, _ := strconv.Atoi(fields[index+3]) - blue, _ := strconv.Atoi(fields[index+4]) - color = fmt.Sprintf("#%02x%02x%02x", red, green, blue) - } - } - if len(color) > 0 { - if field == "38" { - foreground = color - } else { - background = color - } - } - } - } - if len(attributes) > 0 || clearAttributes { - attributes = ":" + attributes - } - if len(foreground) > 0 || len(background) > 0 || len(attributes) > 0 { - fmt.Fprintf(a.buffer, "[%s:%s%s]", foreground, background, attributes) - } - } - a.state = ansiText - default: // Undefined byte. - a.state = ansiText // Abort CSI. - } - - // We just entered a substring/command sequence. - case ansiSubstring: - if r == 27 { // Most likely the end of the substring. - a.state = ansiEscape - } // Ignore all other characters. - - // "ansiText" and all others. - default: - if r == 27 { - // This is the start of an escape sequence. - a.state = ansiEscape - } else { - // Just a regular rune. Send to buffer. - if _, err := a.buffer.WriteRune(r); err != nil { - return 0, err - } - } - } - } - - // Write buffer to target writer. - n, err := a.buffer.WriteTo(a.Writer) - if err != nil { - return int(n), err - } - return len(text), nil -} - -// TranslateANSI replaces ANSI escape sequences found in the provided string -// with tview's color tags and returns the resulting string. -func TranslateANSI(text string) string { - var buffer bytes.Buffer - writer := ANSIWriter(&buffer) - writer.Write([]byte(text)) - return buffer.String() -} diff --git a/vendor/maunium.net/go/tview/application.go b/vendor/maunium.net/go/tview/application.go deleted file mode 100644 index ae4d7f8..0000000 --- a/vendor/maunium.net/go/tview/application.go +++ /dev/null @@ -1,573 +0,0 @@ -package tview - -import ( - "sync" - - "maunium.net/go/tcell" -) - -// The size of the event/update/redraw channels. -const queueSize = 100 - -// Application represents the top node of an application. -// -// It is not strictly required to use this class as none of the other classes -// depend on it. However, it provides useful tools to set up an application and -// plays nicely with all widgets. -// -// The following command displays a primitive p on the screen until Ctrl-C is -// pressed: -// -// if err := tview.NewApplication().SetRoot(p, true).Run(); err != nil { -// panic(err) -// } -type Application struct { - sync.RWMutex - - // The application's screen. - screen tcell.Screen - - // Indicates whether the application's screen is currently active. This is - // false during suspended mode. - running bool - - // The primitive which currently has the keyboard focus. - focus Primitive - - // The root primitive to be seen on the screen. - root Primitive - - // Whether or not the application resizes the root primitive. - rootFullscreen bool - - // An optional capture function which receives a key event and returns the - // event to be forwarded to the default input handler (nil if nothing should - // be forwarded). - inputCapture func(event *tcell.EventKey) *tcell.EventKey - - // An optional capture function which receives a mouse event and returns the - // event to be forwarded to the default input handler (nil if nothing should - // be forwarded). - mouseCapture func(event *tcell.EventMouse) *tcell.EventMouse - - pasteCapture func(event *tcell.EventPaste) *tcell.EventPaste - - // An optional callback function which is invoked just before the root - // primitive is drawn. - beforeDraw func(screen tcell.Screen) bool - - // An optional callback function which is invoked after the root primitive - // was drawn. - afterDraw func(screen tcell.Screen) - - // Used to send screen events from separate goroutine to main event loop - events chan tcell.Event - - // Functions queued from goroutines, used to serialize updates to primitives. - updates chan func() - - // A channel which signals the end of the suspended mode. - suspendToken chan struct{} -} - -// NewApplication creates and returns a new application. -func NewApplication() *Application { - return &Application{ - events: make(chan tcell.Event, queueSize), - updates: make(chan func(), queueSize), - suspendToken: make(chan struct{}, 1), - } -} - -// SetInputCapture sets a function which captures all key events before they are -// forwarded to the key event handler of the primitive which currently has -// focus. This function can then choose to forward that key event (or a -// different one) by returning it or stop the key event processing by returning -// nil. -// -// Note that this also affects the default event handling of the application -// itself: Such a handler can intercept the Ctrl-C event which closes the -// applicatoon. -func (a *Application) SetInputCapture(capture func(event *tcell.EventKey) *tcell.EventKey) *Application { - a.inputCapture = capture - return a -} - -// GetInputCapture returns the function installed with SetInputCapture() or nil -// if no such function has been installed. -func (a *Application) GetInputCapture() func(event *tcell.EventKey) *tcell.EventKey { - return a.inputCapture -} - -// SetMouseCapture sets a function which captures all mouse events before they are -// forwarded to the mouse event handler of the primitive which currently has -// focus. This function can then choose to forward that mouse event (or a -// different one) by returning it or stop the key event processing by returning -// nil. -func (a *Application) SetMouseCapture(capture func(event *tcell.EventMouse) *tcell.EventMouse) *Application { - a.mouseCapture = capture - return a -} - -// GetMouseCapture returns the function installed with SetMouseCapture() or nil -// if no such function has been installed. -func (a *Application) GetMouseCapture() func(event *tcell.EventMouse) *tcell.EventMouse { - return a.mouseCapture -} - -func (a *Application) GetScreen() tcell.Screen { - return a.screen -} - -// SetScreen allows you to provide your own tcell.Screen object. For most -// applications, this is not needed and you should be familiar with -// tcell.Screen when using this function. Run() will call Init() and Fini() on -// the provided screen object. -// -// This function is typically called before calling Run(). Calling it while an -// application is running will switch the application to the new screen. Fini() -// will be called on the old screen and Init() on the new screen (errors -// returned by Init() will lead to a panic). -// -// Note that calling Suspend() will invoke Fini() on your screen object and it -// will not be restored when suspended mode ends. Instead, a new default screen -// object will be created. -func (a *Application) SetScreen(screen tcell.Screen) *Application { - a.Lock() - defer a.Unlock() - if a.running { - a.screen.Fini() - } - a.screen = screen - if a.running { - if err := a.screen.Init(); err != nil { - panic(err) - } - } - return a -} - -// Run starts the application and thus the event loop. This function returns -// when Stop() was called. -func (a *Application) Run() error { - var err error - a.Lock() - - // Make a screen if there is none yet. - if a.screen == nil { - a.screen, err = tcell.NewScreen() - if err != nil { - a.Unlock() - return err - } - } - if err = a.screen.Init(); err != nil { - a.Unlock() - return err - } - a.screen.EnableMouse() - a.running = true - - // We catch panics to clean up because they mess up the terminal. - defer func() { - if p := recover(); p != nil { - if a.screen != nil { - a.screen.Fini() - } - a.running = false - panic(p) - } - }() - - // Draw the screen for the first time. - a.Unlock() - a.draw() - - // Separate loop to wait for screen events. - var wg sync.WaitGroup - wg.Add(1) - a.suspendToken <- struct{}{} // We need this to get started. - go func() { - defer wg.Done() - for range a.suspendToken { - for { - a.RLock() - screen := a.screen - a.RUnlock() - if screen == nil { - // We have no screen. We might need to stop. - break - } - - // Wait for next event and queue it. - event := screen.PollEvent() - if event != nil { - // Regular event. Queue. - a.QueueEvent(event) - continue - } - - // A screen was finalized (event is nil). - a.RLock() - running := a.running - a.RUnlock() - if running { - // The application was stopped. End the event loop. - a.QueueEvent(nil) - return - } - - // We're in suspended mode (running is false). Pause and wait for new - // token. - break - } - } - }() - - // Start event loop. -EventLoop: - for { - select { - case event := <-a.events: - if event == nil { - break EventLoop - } - - switch event := event.(type) { - case *tcell.EventKey: - a.RLock() - p := a.focus - inputCapture := a.inputCapture - a.RUnlock() - - // Intercept keys. - if inputCapture != nil { - event = inputCapture(event) - if event == nil { - continue // Don't forward event. - } - } - - // Ctrl-C closes the application. - if event.Key() == tcell.KeyCtrlC { - a.Stop() - } - - // Pass other key events to the currently focused primitive. - if p != nil { - if handler := p.InputHandler(); handler != nil { - handler(event, func(p Primitive) { - a.SetFocus(p) - }) - a.draw() - } - } - - case *tcell.EventMouse: - a.RLock() - p := a.focus - a.RUnlock() - - // Intercept keys. - if a.mouseCapture != nil { - event = a.mouseCapture(event) - if event == nil { - break // Don't forward event. - } - } - - // Pass other key events to the currently focused primitive. - if p != nil { - if handler := p.MouseHandler(); handler != nil { - handler(event, func(p Primitive) { - a.SetFocus(p) - }) - //a.Draw() - } - } - case *tcell.EventPaste: - a.RLock() - p := a.focus - a.RUnlock() - - if a.pasteCapture != nil { - event = a.pasteCapture(event) - if event == nil { - break - } - } - - if p != nil { - if handler := p.PasteHandler(); handler != nil { - handler(event) - a.Draw() - } - } - case *tcell.EventResize: - a.RLock() - screen := a.screen - a.RUnlock() - screen.Clear() - a.draw() - } - - // If we have updates, now is the time to execute them. - case updater := <-a.updates: - updater() - } - } - - a.running = false - close(a.suspendToken) - wg.Wait() - - return nil -} - -// Stop stops the application, causing Run() to return. -func (a *Application) Stop() { - a.Lock() - defer a.Unlock() - screen := a.screen - if screen == nil { - return - } - a.screen = nil - screen.Fini() - // a.running is still true, the main loop will clean up. -} - -// Suspend temporarily suspends the application by exiting terminal UI mode and -// invoking the provided function "f". When "f" returns, terminal UI mode is -// entered again and the application resumes. -// -// A return value of true indicates that the application was suspended and "f" -// was called. If false is returned, the application was already suspended, -// terminal UI mode was not exited, and "f" was not called. -func (a *Application) Suspend(f func()) bool { - a.Lock() - - screen := a.screen - if screen == nil { - // Screen has not yet been initialized. - a.Unlock() - return false - } - - // Enter suspended mode. Make a new screen here already so our event loop can - // continue. - a.screen = nil - a.running = false - screen.Fini() - a.Unlock() - - // Wait for "f" to return. - f() - - // Initialize our new screen and draw the contents. - a.Lock() - var err error - a.screen, err = tcell.NewScreen() - if err != nil { - a.Unlock() - panic(err) - } - if err = a.screen.Init(); err != nil { - a.Unlock() - panic(err) - } - a.screen.EnableMouse() - a.running = true - a.Unlock() - a.draw() - a.suspendToken <- struct{}{} - // One key event will get lost, see https://github.com/gdamore/tcell/issues/194 - - // Continue application loop. - return true -} - -// Draw refreshes the screen (during the next update cycle). It calls the Draw() -// function of the application's root primitive and then syncs the screen -// buffer. -func (a *Application) Draw() *Application { - a.QueueUpdate(func() { - a.draw() - }) - return a -} - -// draw actually does what Draw() promises to do. -func (a *Application) draw() *Application { - a.Lock() - defer a.Unlock() - - screen := a.screen - root := a.root - fullscreen := a.rootFullscreen - before := a.beforeDraw - after := a.afterDraw - - // Maybe we're not ready yet or not anymore. - if screen == nil || root == nil { - return a - } - - // Resize if requested. - if fullscreen && root != nil { - width, height := screen.Size() - root.SetRect(0, 0, width, height) - } - - // Call before handler if there is one. - if before != nil { - if before(screen) { - screen.Show() - return a - } - } - - // Draw all primitives. - root.Draw(screen) - - // Call after handler if there is one. - if after != nil { - after(screen) - } - - // Sync screen. - screen.Show() - - return a -} - -// SetBeforeDrawFunc installs a callback function which is invoked just before -// the root primitive is drawn during screen updates. If the function returns -// true, drawing will not continue, i.e. the root primitive will not be drawn -// (and an after-draw-handler will not be called). -// -// Note that the screen is not cleared by the application. To clear the screen, -// you may call screen.Clear(). -// -// Provide nil to uninstall the callback function. -func (a *Application) SetBeforeDrawFunc(handler func(screen tcell.Screen) bool) *Application { - a.beforeDraw = handler - return a -} - -// GetBeforeDrawFunc returns the callback function installed with -// SetBeforeDrawFunc() or nil if none has been installed. -func (a *Application) GetBeforeDrawFunc() func(screen tcell.Screen) bool { - return a.beforeDraw -} - -// SetAfterDrawFunc installs a callback function which is invoked after the root -// primitive was drawn during screen updates. -// -// Provide nil to uninstall the callback function. -func (a *Application) SetAfterDrawFunc(handler func(screen tcell.Screen)) *Application { - a.afterDraw = handler - return a -} - -// GetAfterDrawFunc returns the callback function installed with -// SetAfterDrawFunc() or nil if none has been installed. -func (a *Application) GetAfterDrawFunc() func(screen tcell.Screen) { - return a.afterDraw -} - -// SetRoot sets the root primitive for this application. If "fullscreen" is set -// to true, the root primitive's position will be changed to fill the screen. -// -// This function must be called at least once or nothing will be displayed when -// the application starts. -// -// It also calls SetFocus() on the primitive. -func (a *Application) SetRoot(root Primitive, fullscreen bool) *Application { - a.Lock() - a.root = root - a.rootFullscreen = fullscreen - if a.screen != nil { - a.screen.Clear() - } - a.Unlock() - - a.SetFocus(root) - - return a -} - -// ResizeToFullScreen resizes the given primitive such that it fills the entire -// screen. -func (a *Application) ResizeToFullScreen(p Primitive) *Application { - a.RLock() - width, height := a.screen.Size() - a.RUnlock() - p.SetRect(0, 0, width, height) - return a -} - -// SetFocus sets the focus on a new primitive. All key events will be redirected -// to that primitive. Callers must ensure that the primitive will handle key -// events. -// -// Blur() will be called on the previously focused primitive. Focus() will be -// called on the new primitive. -func (a *Application) SetFocus(p Primitive) *Application { - a.Lock() - if a.focus != nil { - a.focus.Blur() - } - a.focus = p - if a.screen != nil { - a.screen.HideCursor() - } - a.Unlock() - if p != nil { - p.Focus(func(p Primitive) { - a.SetFocus(p) - }) - } - - return a -} - -// GetFocus returns the primitive which has the current focus. If none has it, -// nil is returned. -func (a *Application) GetFocus() Primitive { - a.RLock() - defer a.RUnlock() - return a.focus -} - -// QueueUpdate is used to synchronize access to primitives from non-main -// goroutines. The provided function will be executed as part of the event loop -// and thus will not cause race conditions with other such update functions or -// the Draw() function. -// -// Note that Draw() is not implicitly called after the execution of f as that -// may not be desirable. You can call Draw() from f if the screen should be -// refreshed after each update. Alternatively, use QueueUpdateDraw() to follow -// up with an immediate refresh of the screen. -func (a *Application) QueueUpdate(f func()) *Application { - a.updates <- f - return a -} - -// QueueUpdateDraw works like QueueUpdate() except it refreshes the screen -// immediately after executing f. -func (a *Application) QueueUpdateDraw(f func()) *Application { - a.QueueUpdate(func() { - f() - a.draw() - }) - return a -} - -// QueueEvent sends an event to the Application event loop. -// -// It is not recommended for event to be nil. -func (a *Application) QueueEvent(event tcell.Event) *Application { - a.events <- event - return a -} diff --git a/vendor/maunium.net/go/tview/borders.go b/vendor/maunium.net/go/tview/borders.go deleted file mode 100644 index 946c878..0000000 --- a/vendor/maunium.net/go/tview/borders.go +++ /dev/null @@ -1,45 +0,0 @@ -package tview - -// Borders defines various borders used when primitives are drawn. -// These may be changed to accommodate a different look and feel. -var Borders = struct { - Horizontal rune - Vertical rune - TopLeft rune - TopRight rune - BottomLeft rune - BottomRight rune - - LeftT rune - RightT rune - TopT rune - BottomT rune - Cross rune - - HorizontalFocus rune - VerticalFocus rune - TopLeftFocus rune - TopRightFocus rune - BottomLeftFocus rune - BottomRightFocus rune -}{ - Horizontal: BoxDrawingsLightHorizontal, - Vertical: BoxDrawingsLightVertical, - TopLeft: BoxDrawingsLightDownAndRight, - TopRight: BoxDrawingsLightDownAndLeft, - BottomLeft: BoxDrawingsLightUpAndRight, - BottomRight: BoxDrawingsLightUpAndLeft, - - LeftT: BoxDrawingsLightVerticalAndRight, - RightT: BoxDrawingsLightVerticalAndLeft, - TopT: BoxDrawingsLightDownAndHorizontal, - BottomT: BoxDrawingsLightUpAndHorizontal, - Cross: BoxDrawingsLightVerticalAndHorizontal, - - HorizontalFocus: BoxDrawingsDoubleHorizontal, - VerticalFocus: BoxDrawingsDoubleVertical, - TopLeftFocus: BoxDrawingsDoubleDownAndRight, - TopRightFocus: BoxDrawingsDoubleDownAndLeft, - BottomLeftFocus: BoxDrawingsDoubleUpAndRight, - BottomRightFocus: BoxDrawingsDoubleUpAndLeft, -} diff --git a/vendor/maunium.net/go/tview/box.go b/vendor/maunium.net/go/tview/box.go deleted file mode 100644 index 85bf1b2..0000000 --- a/vendor/maunium.net/go/tview/box.go +++ /dev/null @@ -1,416 +0,0 @@ -package tview - -import ( - "maunium.net/go/tcell" -) - -// Box implements Primitive with a background and optional elements such as a -// border and a title. Most subclasses keep their content contained in the box -// but don't necessarily have to. -// -// Note that all classes which subclass from Box will also have access to its -// functions. -// -// See https://github.com/rivo/tview/wiki/Box for an example. -type Box struct { - // The position of the rect. - x, y, width, height int - - // The inner rect reserved for the box's content. - innerX, innerY, innerWidth, innerHeight int - - // Border padding. - paddingTop, paddingBottom, paddingLeft, paddingRight int - - // The box's background color. - backgroundColor tcell.Color - - // Whether or not a border is drawn, reducing the box's space for content by - // two in width and height. - border bool - - // The color of the border. - borderColor tcell.Color - - // The style attributes of the border. - borderAttributes tcell.AttrMask - - // The title. Only visible if there is a border, too. - title string - - // The color of the title. - titleColor tcell.Color - - // The alignment of the title. - titleAlign int - - // Provides a way to find out if this box has focus. We always go through - // this interface because it may be overridden by implementing classes. - focus Focusable - - // Whether or not this box has focus. - hasFocus bool - - // An optional capture function which receives a key event and returns the - // event to be forwarded to the primitive's default input handler (nil if - // nothing should be forwarded). - inputCapture func(event *tcell.EventKey) *tcell.EventKey - - // An optional capture function which receives a mouse event and returns the - // event to be forwarded to the primitive's default mouse handler (nil if - // nothing should be forwarded). - mouseCapture func(event *tcell.EventMouse) *tcell.EventMouse - - pasteCapture func(event *tcell.EventPaste) *tcell.EventPaste - - // An optional function which is called before the box is drawn. - draw func(screen tcell.Screen, x, y, width, height int) (int, int, int, int) -} - -// NewBox returns a Box without a border. -func NewBox() *Box { - b := &Box{ - width: 15, - height: 10, - innerX: -1, // Mark as uninitialized. - backgroundColor: Styles.PrimitiveBackgroundColor, - borderColor: Styles.BorderColor, - titleColor: Styles.TitleColor, - titleAlign: AlignCenter, - } - b.focus = b - return b -} - -// SetBorderPadding sets the size of the borders around the box content. -func (b *Box) SetBorderPadding(top, bottom, left, right int) *Box { - b.paddingTop, b.paddingBottom, b.paddingLeft, b.paddingRight = top, bottom, left, right - return b -} - -// GetRect returns the current position of the rectangle, x, y, width, and -// height. -func (b *Box) GetRect() (int, int, int, int) { - return b.x, b.y, b.width, b.height -} - -// GetInnerRect returns the position of the inner rectangle (x, y, width, -// height), without the border and without any padding. -func (b *Box) GetInnerRect() (int, int, int, int) { - if b.innerX >= 0 { - return b.innerX, b.innerY, b.innerWidth, b.innerHeight - } - x, y, width, height := b.GetRect() - if b.border { - x++ - y++ - width -= 2 - height -= 2 - } - return x + b.paddingLeft, - y + b.paddingTop, - width - b.paddingLeft - b.paddingRight, - height - b.paddingTop - b.paddingBottom -} - -// SetRect sets a new position of the primitive. -func (b *Box) SetRect(x, y, width, height int) { - b.x = x - b.y = y - b.width = width - b.height = height - b.innerX = -1 // Mark inner rect as uninitialized. -} - -// SetDrawFunc sets a callback function which is invoked after the box primitive -// has been drawn. This allows you to add a more individual style to the box -// (and all primitives which extend it). -// -// The function is provided with the box's dimensions (set via SetRect()). It -// must return the box's inner dimensions (x, y, width, height) which will be -// returned by GetInnerRect(), used by descendent primitives to draw their own -// content. -func (b *Box) SetDrawFunc(handler func(screen tcell.Screen, x, y, width, height int) (int, int, int, int)) *Box { - b.draw = handler - return b -} - -// GetDrawFunc returns the callback function which was installed with -// SetDrawFunc() or nil if no such function has been installed. -func (b *Box) GetDrawFunc() func(screen tcell.Screen, x, y, width, height int) (int, int, int, int) { - return b.draw -} - -// WrapInputHandler wraps an input handler (see InputHandler()) with the -// functionality to capture input (see SetInputCapture()) before passing it -// on to the provided (default) input handler. -// -// This is only meant to be used by subclassing primitives. -func (b *Box) WrapInputHandler(inputHandler func(*tcell.EventKey, func(p Primitive))) func(*tcell.EventKey, func(p Primitive)) { - return func(event *tcell.EventKey, setFocus func(p Primitive)) { - if b.inputCapture != nil { - event = b.inputCapture(event) - } - if event != nil && inputHandler != nil { - inputHandler(event, setFocus) - } - } -} - -// InputHandler returns nil. -func (b *Box) InputHandler() func(event *tcell.EventKey, setFocus func(p Primitive)) { - return b.WrapInputHandler(nil) -} - -// SetInputCapture installs a function which captures key events before they are -// forwarded to the primitive's default key event handler. This function can -// then choose to forward that key event (or a different one) to the default -// handler by returning it. If nil is returned, the default handler will not -// be called. -// -// Providing a nil handler will remove a previously existing handler. -func (b *Box) SetInputCapture(capture func(event *tcell.EventKey) *tcell.EventKey) *Box { - b.inputCapture = capture - return b -} - -// GetInputCapture returns the function installed with SetInputCapture() or nil -// if no such function has been installed. -func (b *Box) GetInputCapture() func(event *tcell.EventKey) *tcell.EventKey { - return b.inputCapture -} - -// WrapMouseHandler wraps a mouse handler (see MouseHandler()) with the -// functionality to capture mouse events (see SetMouseCapture()) before passing it -// on to the provided (default) mouse handler. -// -// This is only meant to be used by subclassing primitives. -func (b *Box) WrapMouseHandler(mouseHandler func(*tcell.EventMouse, func(p Primitive))) func(*tcell.EventMouse, func(p Primitive)) { - return func(event *tcell.EventMouse, setFocus func(p Primitive)) { - if b.mouseCapture != nil { - event = b.mouseCapture(event) - } - if event != nil && mouseHandler != nil { - mouseHandler(event, setFocus) - } - } -} - -// MouseHandler returns nil. -func (b *Box) MouseHandler() func(event *tcell.EventMouse, setFocus func(p Primitive)) { - return b.WrapMouseHandler(nil) -} - -// SetMouseCapture installs a function which captures mouse events before they are -// forwarded to the primitive's default mouse event handler. This function can -// then choose to forward that mouse event (or a different one) to the default -// handler by returning it. If nil is returned, the default handler will not -// be called. -// -// Providing a nil handler will remove a previously existing handler. -func (b *Box) SetMouseCapture(capture func(event *tcell.EventMouse) *tcell.EventMouse) *Box { - b.mouseCapture = capture - return b -} - -// GetMouseCapture returns the function installed with SetMouseCapture() or nil -// if no such function has been installed. -func (b *Box) GetMouseCapture() func(event *tcell.EventMouse) *tcell.EventMouse { - return b.mouseCapture -} - -func (b *Box) WrapPasteHandler(pasteHandler func(*tcell.EventPaste)) func(*tcell.EventPaste) { - return func(event *tcell.EventPaste) { - if b.pasteCapture != nil { - event = b.pasteCapture(event) - } - if event != nil && pasteHandler != nil { - pasteHandler(event) - } - } -} - -func (b *Box) PasteHandler() func(event *tcell.EventPaste) { - return b.WrapPasteHandler(func(event *tcell.EventPaste) { - // Default paste handler just calls input handler with each character. - inputHandler := b.InputHandler() - for _, char := range event.Text() { - inputHandler(tcell.NewEventKey(tcell.KeyRune, char, tcell.ModNone), nil) - } - }) -} - -func (b *Box) SetPasteCapture(capture func(event *tcell.EventPaste) *tcell.EventPaste) *Box { - b.pasteCapture = capture - return b -} - -func (b *Box) GetPasteCapture() func(event *tcell.EventPaste) *tcell.EventPaste { - return b.pasteCapture -} - -// SetBackgroundColor sets the box's background color. -func (b *Box) SetBackgroundColor(color tcell.Color) *Box { - b.backgroundColor = color - return b -} - -// SetBorder sets the flag indicating whether or not the box should have a -// border. -func (b *Box) SetBorder(show bool) *Box { - b.border = show - return b -} - -func (b *Box) HasBorder() bool { - return b.border -} - -// SetBorderColor sets the box's border color. -func (b *Box) SetBorderColor(color tcell.Color) *Box { - b.borderColor = color - return b -} - -// SetBorderAttributes sets the border's style attributes. You can combine -// different attributes using bitmask operations: -// -// box.SetBorderAttributes(tcell.AttrUnderline | tcell.AttrBold) -func (b *Box) SetBorderAttributes(attr tcell.AttrMask) *Box { - b.borderAttributes = attr - return b -} - -// SetTitle sets the box's title. -func (b *Box) SetTitle(title string) *Box { - b.title = title - return b -} - -// SetTitleColor sets the box's title color. -func (b *Box) SetTitleColor(color tcell.Color) *Box { - b.titleColor = color - return b -} - -// SetTitleAlign sets the alignment of the title, one of AlignLeft, AlignCenter, -// or AlignRight. -func (b *Box) SetTitleAlign(align int) *Box { - b.titleAlign = align - return b -} - -func (b *Box) GetBackgroundColor() tcell.Color { - return b.backgroundColor -} - -func (b *Box) GetBorderColor() tcell.Color { - return b.borderColor -} - -// Draw draws this primitive onto the screen. -func (b *Box) Draw(screen tcell.Screen) { - // Don't draw anything if there is no space. - if b.width <= 0 || b.height <= 0 { - return - } - - def := tcell.StyleDefault - - // Fill background. - background := def.Background(b.backgroundColor) - for y := b.y; y < b.y+b.height; y++ { - for x := b.x; x < b.x+b.width; x++ { - screen.SetContent(x, y, ' ', nil, background) - } - } - - // Draw border. - if b.border && b.width >= 2 && b.height >= 2 { - border := background.Foreground(b.borderColor) | tcell.Style(b.borderAttributes) - var vertical, horizontal, topLeft, topRight, bottomLeft, bottomRight rune - if b.focus.HasFocus() { - horizontal = Borders.HorizontalFocus - vertical = Borders.VerticalFocus - topLeft = Borders.TopLeftFocus - topRight = Borders.TopRightFocus - bottomLeft = Borders.BottomLeftFocus - bottomRight = Borders.BottomRightFocus - } else { - horizontal = Borders.Horizontal - vertical = Borders.Vertical - topLeft = Borders.TopLeft - topRight = Borders.TopRight - bottomLeft = Borders.BottomLeft - bottomRight = Borders.BottomRight - } - for x := b.x + 1; x < b.x+b.width-1; x++ { - screen.SetContent(x, b.y, horizontal, nil, border) - screen.SetContent(x, b.y+b.height-1, horizontal, nil, border) - } - for y := b.y + 1; y < b.y+b.height-1; y++ { - screen.SetContent(b.x, y, vertical, nil, border) - screen.SetContent(b.x+b.width-1, y, vertical, nil, border) - } - screen.SetContent(b.x, b.y, topLeft, nil, border) - screen.SetContent(b.x+b.width-1, b.y, topRight, nil, border) - screen.SetContent(b.x, b.y+b.height-1, bottomLeft, nil, border) - screen.SetContent(b.x+b.width-1, b.y+b.height-1, bottomRight, nil, border) - - // Draw title. - if b.title != "" && b.width >= 4 { - printed, _ := Print(screen, b.title, b.x+1, b.y, b.width-2, b.titleAlign, b.titleColor) - if len(b.title)-printed > 0 && printed > 0 { - _, _, style, _ := screen.GetContent(b.x+b.width-2, b.y) - fg, _, _ := style.Decompose() - Print(screen, string(SemigraphicsHorizontalEllipsis), b.x+b.width-2, b.y, 1, AlignLeft, fg) - } - } - } - - // Call custom draw function. - if b.draw != nil { - b.innerX, b.innerY, b.innerWidth, b.innerHeight = b.draw(screen, b.x, b.y, b.width, b.height) - } else { - // Remember the inner rect. - b.innerX = -1 - b.innerX, b.innerY, b.innerWidth, b.innerHeight = b.GetInnerRect() - } - - // Clamp inner rect to screen. - width, height := screen.Size() - if b.innerX < 0 { - b.innerWidth += b.innerX - b.innerX = 0 - } - if b.innerX+b.innerWidth >= width { - b.innerWidth = width - b.innerX - } - if b.innerY+b.innerHeight >= height { - b.innerHeight = height - b.innerY - } - if b.innerY < 0 { - b.innerHeight += b.innerY - b.innerY = 0 - } -} - -// Focus is called when this primitive receives focus. -func (b *Box) Focus(delegate func(p Primitive)) { - b.hasFocus = true -} - -// Blur is called when this primitive loses focus. -func (b *Box) Blur() { - b.hasFocus = false -} - -// HasFocus returns whether or not this primitive has focus. -func (b *Box) HasFocus() bool { - return b.hasFocus -} - -// GetFocusable returns the item's Focusable. -func (b *Box) GetFocusable() Focusable { - return b.focus -} diff --git a/vendor/maunium.net/go/tview/button.go b/vendor/maunium.net/go/tview/button.go deleted file mode 100644 index cb47eae..0000000 --- a/vendor/maunium.net/go/tview/button.go +++ /dev/null @@ -1,137 +0,0 @@ -package tview - -import ( - "maunium.net/go/tcell" -) - -// Button is labeled box that triggers an action when selected. -// -// See https://github.com/rivo/tview/wiki/Button for an example. -type Button struct { - *Box - - // The text to be displayed before the input area. - label string - - // The label color. - labelColor tcell.Color - - // The label color when the button is in focus. - labelColorActivated tcell.Color - - // The background color when the button is in focus. - backgroundColorActivated tcell.Color - - // An optional function which is called when the button was selected. - selected func() - - // An optional function which is called when the user leaves the button. A - // key is provided indicating which key was pressed to leave (tab or backtab). - blur func(tcell.Key) -} - -// NewButton returns a new input field. -func NewButton(label string) *Button { - box := NewBox().SetBackgroundColor(Styles.ContrastBackgroundColor) - box.SetRect(0, 0, StringWidth(label)+4, 1) - return &Button{ - Box: box, - label: label, - labelColor: Styles.PrimaryTextColor, - labelColorActivated: Styles.InverseTextColor, - backgroundColorActivated: Styles.PrimaryTextColor, - } -} - -// SetLabel sets the button text. -func (b *Button) SetLabel(label string) *Button { - b.label = label - return b -} - -// GetLabel returns the button text. -func (b *Button) GetLabel() string { - return b.label -} - -// SetLabelColor sets the color of the button text. -func (b *Button) SetLabelColor(color tcell.Color) *Button { - b.labelColor = color - return b -} - -// SetLabelColorActivated sets the color of the button text when the button is -// in focus. -func (b *Button) SetLabelColorActivated(color tcell.Color) *Button { - b.labelColorActivated = color - return b -} - -// SetBackgroundColorActivated sets the background color of the button text when -// the button is in focus. -func (b *Button) SetBackgroundColorActivated(color tcell.Color) *Button { - b.backgroundColorActivated = color - return b -} - -// SetSelectedFunc sets a handler which is called when the button was selected. -func (b *Button) SetSelectedFunc(handler func()) *Button { - b.selected = handler - return b -} - -// SetBlurFunc sets a handler which is called when the user leaves the button. -// The callback function is provided with the key that was pressed, which is one -// of the following: -// -// - KeyEscape: Leaving the button with no specific direction. -// - KeyTab: Move to the next field. -// - KeyBacktab: Move to the previous field. -func (b *Button) SetBlurFunc(handler func(key tcell.Key)) *Button { - b.blur = handler - return b -} - -// Draw draws this primitive onto the screen. -func (b *Button) Draw(screen tcell.Screen) { - // Draw the box. - borderColor := b.borderColor - backgroundColor := b.backgroundColor - if b.focus.HasFocus() { - b.backgroundColor = b.backgroundColorActivated - b.borderColor = b.labelColorActivated - defer func() { - b.borderColor = borderColor - }() - } - b.Box.Draw(screen) - b.backgroundColor = backgroundColor - - // Draw label. - x, y, width, height := b.GetInnerRect() - if width > 0 && height > 0 { - y = y + height/2 - labelColor := b.labelColor - if b.focus.HasFocus() { - labelColor = b.labelColorActivated - } - Print(screen, b.label, x, y, width, AlignCenter, labelColor) - } -} - -// InputHandler returns the handler for this primitive. -func (b *Button) InputHandler() func(event *tcell.EventKey, setFocus func(p Primitive)) { - return b.WrapInputHandler(func(event *tcell.EventKey, setFocus func(p Primitive)) { - // Process key event. - switch key := event.Key(); key { - case tcell.KeyEnter: // Selected. - if b.selected != nil { - b.selected() - } - case tcell.KeyBacktab, tcell.KeyTab, tcell.KeyEscape: // Leave. No action. - if b.blur != nil { - b.blur(key) - } - } - }) -} diff --git a/vendor/maunium.net/go/tview/checkbox.go b/vendor/maunium.net/go/tview/checkbox.go deleted file mode 100644 index 48d4592..0000000 --- a/vendor/maunium.net/go/tview/checkbox.go +++ /dev/null @@ -1,203 +0,0 @@ -package tview - -import ( - "maunium.net/go/tcell" -) - -// Checkbox implements a simple box for boolean values which can be checked and -// unchecked. -// -// See https://github.com/rivo/tview/wiki/Checkbox for an example. -type Checkbox struct { - *Box - - // Whether or not this box is checked. - checked bool - - // The text to be displayed before the input area. - label string - - // The screen width of the label area. A value of 0 means use the width of - // the label text. - labelWidth int - - // The label color. - labelColor tcell.Color - - // The background color of the input area. - fieldBackgroundColor tcell.Color - - // The text color of the input area. - fieldTextColor tcell.Color - - // An optional function which is called when the user changes the checked - // state of this checkbox. - changed func(checked bool) - - // An optional function which is called when the user indicated that they - // are done entering text. The key which was pressed is provided (tab, - // shift-tab, or escape). - done func(tcell.Key) - - // A callback function set by the Form class and called when the user leaves - // this form item. - finished func(tcell.Key) -} - -// NewCheckbox returns a new input field. -func NewCheckbox() *Checkbox { - return &Checkbox{ - Box: NewBox(), - labelColor: Styles.SecondaryTextColor, - fieldBackgroundColor: Styles.ContrastBackgroundColor, - fieldTextColor: Styles.PrimaryTextColor, - } -} - -// SetChecked sets the state of the checkbox. -func (c *Checkbox) SetChecked(checked bool) *Checkbox { - c.checked = checked - return c -} - -// IsChecked returns whether or not the box is checked. -func (c *Checkbox) IsChecked() bool { - return c.checked -} - -// SetLabel sets the text to be displayed before the input area. -func (c *Checkbox) SetLabel(label string) *Checkbox { - c.label = label - return c -} - -// GetLabel returns the text to be displayed before the input area. -func (c *Checkbox) GetLabel() string { - return c.label -} - -// SetLabelWidth sets the screen width of the label. A value of 0 will cause the -// primitive to use the width of the label string. -func (c *Checkbox) SetLabelWidth(width int) *Checkbox { - c.labelWidth = width - return c -} - -// SetLabelColor sets the color of the label. -func (c *Checkbox) SetLabelColor(color tcell.Color) *Checkbox { - c.labelColor = color - return c -} - -// SetFieldBackgroundColor sets the background color of the input area. -func (c *Checkbox) SetFieldBackgroundColor(color tcell.Color) *Checkbox { - c.fieldBackgroundColor = color - return c -} - -// SetFieldTextColor sets the text color of the input area. -func (c *Checkbox) SetFieldTextColor(color tcell.Color) *Checkbox { - c.fieldTextColor = color - return c -} - -// SetFormAttributes sets attributes shared by all form items. -func (c *Checkbox) SetFormAttributes(labelWidth int, labelColor, bgColor, fieldTextColor, fieldBgColor tcell.Color) FormItem { - c.labelWidth = labelWidth - c.labelColor = labelColor - c.backgroundColor = bgColor - c.fieldTextColor = fieldTextColor - c.fieldBackgroundColor = fieldBgColor - return c -} - -// GetFieldWidth returns this primitive's field width. -func (c *Checkbox) GetFieldWidth() int { - return 1 -} - -// SetChangedFunc sets a handler which is called when the checked state of this -// checkbox was changed by the user. The handler function receives the new -// state. -func (c *Checkbox) SetChangedFunc(handler func(checked bool)) *Checkbox { - c.changed = handler - return c -} - -// SetDoneFunc sets a handler which is called when the user is done using the -// checkbox. The callback function is provided with the key that was pressed, -// which is one of the following: -// -// - KeyEscape: Abort text input. -// - KeyTab: Move to the next field. -// - KeyBacktab: Move to the previous field. -func (c *Checkbox) SetDoneFunc(handler func(key tcell.Key)) *Checkbox { - c.done = handler - return c -} - -// SetFinishedFunc sets a callback invoked when the user leaves this form item. -func (c *Checkbox) SetFinishedFunc(handler func(key tcell.Key)) FormItem { - c.finished = handler - return c -} - -// Draw draws this primitive onto the screen. -func (c *Checkbox) Draw(screen tcell.Screen) { - c.Box.Draw(screen) - - // Prepare - x, y, width, height := c.GetInnerRect() - rightLimit := x + width - if height < 1 || rightLimit <= x { - return - } - - // Draw label. - if c.labelWidth > 0 { - labelWidth := c.labelWidth - if labelWidth > rightLimit-x { - labelWidth = rightLimit - x - } - Print(screen, c.label, x, y, labelWidth, AlignLeft, c.labelColor) - x += labelWidth - } else { - _, drawnWidth := Print(screen, c.label, x, y, rightLimit-x, AlignLeft, c.labelColor) - x += drawnWidth - } - - // Draw checkbox. - fieldStyle := tcell.StyleDefault.Background(c.fieldBackgroundColor).Foreground(c.fieldTextColor) - if c.focus.HasFocus() { - fieldStyle = fieldStyle.Background(c.fieldTextColor).Foreground(c.fieldBackgroundColor) - } - checkedRune := 'X' - if !c.checked { - checkedRune = ' ' - } - screen.SetContent(x, y, checkedRune, nil, fieldStyle) -} - -// InputHandler returns the handler for this primitive. -func (c *Checkbox) InputHandler() func(event *tcell.EventKey, setFocus func(p Primitive)) { - return c.WrapInputHandler(func(event *tcell.EventKey, setFocus func(p Primitive)) { - // Process key event. - switch key := event.Key(); key { - case tcell.KeyRune, tcell.KeyEnter: // Check. - if key == tcell.KeyRune && event.Rune() != ' ' { - break - } - c.checked = !c.checked - if c.changed != nil { - c.changed(c.checked) - } - case tcell.KeyTab, tcell.KeyBacktab, tcell.KeyEscape: // We're done. - if c.done != nil { - c.done(key) - } - if c.finished != nil { - c.finished(key) - } - } - }) -} diff --git a/vendor/maunium.net/go/tview/doc.go b/vendor/maunium.net/go/tview/doc.go deleted file mode 100644 index ddc410f..0000000 --- a/vendor/maunium.net/go/tview/doc.go +++ /dev/null @@ -1,174 +0,0 @@ -/* -Package tview implements rich widgets for terminal based user interfaces. The -widgets provided with this package are useful for data exploration and data -entry. - -Widgets - -The package implements the following widgets: - - - TextView: A scrollable window that display multi-colored text. Text may also - be highlighted. - - Table: A scrollable display of tabular data. Table cells, rows, or columns - may also be highlighted. - - TreeView: A scrollable display for hierarchical data. Tree nodes can be - highlighted, collapsed, expanded, and more. - - List: A navigable text list with optional keyboard shortcuts. - - InputField: One-line input fields to enter text. - - DropDown: Drop-down selection fields. - - Checkbox: Selectable checkbox for boolean values. - - Button: Buttons which get activated when the user selects them. - - Form: Forms composed of input fields, drop down selections, checkboxes, and - buttons. - - Modal: A centered window with a text message and one or more buttons. - - Flex: A Flexbox based layout manager. - - Pages: A page based layout manager. - -The package also provides Application which is used to poll the event queue and -draw widgets on screen. - -Hello World - -The following is a very basic example showing a box with the title "Hello, -world!": - - package main - - import ( - "github.com/rivo/tview" - ) - - func main() { - box := tview.NewBox().SetBorder(true).SetTitle("Hello, world!") - if err := tview.NewApplication().SetRoot(box, true).Run(); err != nil { - panic(err) - } - } - -First, we create a box primitive with a border and a title. Then we create an -application, set the box as its root primitive, and run the event loop. The -application exits when the application's Stop() function is called or when -Ctrl-C is pressed. - -If we have a primitive which consumes key presses, we call the application's -SetFocus() function to redirect all key presses to that primitive. Most -primitives then offer ways to install handlers that allow you to react to any -actions performed on them. - -More Demos - -You will find more demos in the "demos" subdirectory. It also contains a -presentation (written using tview) which gives an overview of the different -widgets and how they can be used. - -Colors - -Throughout this package, colors are specified using the tcell.Color type. -Functions such as tcell.GetColor(), tcell.NewHexColor(), and tcell.NewRGBColor() -can be used to create colors from W3C color names or RGB values. - -Almost all strings which are displayed can contain color tags. Color tags are -W3C color names or six hexadecimal digits following a hash tag, wrapped in -square brackets. Examples: - - This is a [red]warning[white]! - The sky is [#8080ff]blue[#ffffff]. - -A color tag changes the color of the characters following that color tag. This -applies to almost everything from box titles, list text, form item labels, to -table cells. In a TextView, this functionality has to be switched on explicitly. -See the TextView documentation for more information. - -Color tags may contain not just the foreground (text) color but also the -background color and additional flags. In fact, the full definition of a color -tag is as follows: - - [<foreground>:<background>:<flags>] - -Each of the three fields can be left blank and trailing fields can be omitted. -(Empty square brackets "[]", however, are not considered color tags.) Colors -that are not specified will be left unchanged. A field with just a dash ("-") -means "reset to default". - -You can specify the following flags (some flags may not be supported by your -terminal): - - l: blink - b: bold - d: dim - r: reverse (switch foreground and background color) - u: underline - -Examples: - - [yellow]Yellow text - [yellow:red]Yellow text on red background - [:red]Red background, text color unchanged - [yellow::u]Yellow text underlined - [::bl]Bold, blinking text - [::-]Colors unchanged, flags reset - [-]Reset foreground color - [-:-:-]Reset everything - [:]No effect - []Not a valid color tag, will print square brackets as they are - -In the rare event that you want to display a string such as "[red]" or -"[#00ff1a]" without applying its effect, you need to put an opening square -bracket before the closing square bracket. Note that the text inside the -brackets will be matched less strictly than region or colors tags. I.e. any -character that may be used in color or region tags will be recognized. Examples: - - [red[] will be output as [red] - ["123"[] will be output as ["123"] - [#6aff00[[] will be output as [#6aff00[] - [a#"[[[] will be output as [a#"[[] - [] will be output as [] (see color tags above) - [[] will be output as [[] (not an escaped tag) - -You can use the Escape() function to insert brackets automatically where needed. - -Styles - -When primitives are instantiated, they are initialized with colors taken from -the global Styles variable. You may change this variable to adapt the look and -feel of the primitives to your preferred style. - -Unicode Support - -This package supports unicode characters including wide characters. - -Concurrency - -Many functions in this package are not thread-safe. For many applications, this -may not be an issue: If your code makes changes in response to key events, it -will execute in the main goroutine and thus will not cause any race conditions. - -If you access your primitives from other goroutines, however, you will need to -synchronize execution. The easiest way to do this is to call -Application.QueueUpdate() or Application.QueueUpdateDraw() (see the function -documentation for details): - - go func() { - app.QueueUpdateDraw(func() { - table.SetCellSimple(0, 0, "Foo bar") - }) - }() - -One exception to this is the io.Writer interface implemented by TextView. You -can safely write to a TextView from any goroutine. See the TextView -documentation for details. - -Type Hierarchy - -All widgets listed above contain the Box type. All of Box's functions are -therefore available for all widgets, too. - -All widgets also implement the Primitive interface. There is also the Focusable -interface which is used to override functions in subclassing types. - -The tview package is based on https://maunium.net/go/tcell. It uses types -and constants from that package (e.g. colors and keyboard values). - -This package does not process mouse input (yet). -*/ -package tview diff --git a/vendor/maunium.net/go/tview/dropdown.go b/vendor/maunium.net/go/tview/dropdown.go deleted file mode 100644 index 02c93bd..0000000 --- a/vendor/maunium.net/go/tview/dropdown.go +++ /dev/null @@ -1,413 +0,0 @@ -package tview - -import ( - "strings" - - "maunium.net/go/tcell" - runewidth "github.com/mattn/go-runewidth" -) - -// dropDownOption is one option that can be selected in a drop-down primitive. -type dropDownOption struct { - Text string // The text to be displayed in the drop-down. - Selected func() // The (optional) callback for when this option was selected. -} - -// DropDown implements a selection widget whose options become visible in a -// drop-down list when activated. -// -// See https://github.com/rivo/tview/wiki/DropDown for an example. -type DropDown struct { - *Box - - // The options from which the user can choose. - options []*dropDownOption - - // The index of the currently selected option. Negative if no option is - // currently selected. - currentOption int - - // Set to true if the options are visible and selectable. - open bool - - // The runes typed so far to directly access one of the list items. - prefix string - - // The list element for the options. - list *List - - // The text to be displayed before the input area. - label string - - // The label color. - labelColor tcell.Color - - // The background color of the input area. - fieldBackgroundColor tcell.Color - - // The text color of the input area. - fieldTextColor tcell.Color - - // The color for prefixes. - prefixTextColor tcell.Color - - // The screen width of the label area. A value of 0 means use the width of - // the label text. - labelWidth int - - // The screen width of the input area. A value of 0 means extend as much as - // possible. - fieldWidth int - - // An optional function which is called when the user indicated that they - // are done selecting options. The key which was pressed is provided (tab, - // shift-tab, or escape). - done func(tcell.Key) - - // A callback function set by the Form class and called when the user leaves - // this form item. - finished func(tcell.Key) -} - -// NewDropDown returns a new drop-down. -func NewDropDown() *DropDown { - list := NewList().ShowSecondaryText(false) - list.SetMainTextColor(Styles.PrimitiveBackgroundColor). - SetSelectedTextColor(Styles.PrimitiveBackgroundColor). - SetSelectedBackgroundColor(Styles.PrimaryTextColor). - SetBackgroundColor(Styles.MoreContrastBackgroundColor) - - d := &DropDown{ - Box: NewBox(), - currentOption: -1, - list: list, - labelColor: Styles.SecondaryTextColor, - fieldBackgroundColor: Styles.ContrastBackgroundColor, - fieldTextColor: Styles.PrimaryTextColor, - prefixTextColor: Styles.ContrastSecondaryTextColor, - } - - d.focus = d - - return d -} - -// SetCurrentOption sets the index of the currently selected option. This may -// be a negative value to indicate that no option is currently selected. -func (d *DropDown) SetCurrentOption(index int) *DropDown { - d.currentOption = index - d.list.SetCurrentItem(index) - return d -} - -// GetCurrentOption returns the index of the currently selected option as well -// as its text. If no option was selected, -1 and an empty string is returned. -func (d *DropDown) GetCurrentOption() (int, string) { - var text string - if d.currentOption >= 0 && d.currentOption < len(d.options) { - text = d.options[d.currentOption].Text - } - return d.currentOption, text -} - -// SetLabel sets the text to be displayed before the input area. -func (d *DropDown) SetLabel(label string) *DropDown { - d.label = label - return d -} - -// GetLabel returns the text to be displayed before the input area. -func (d *DropDown) GetLabel() string { - return d.label -} - -// SetLabelWidth sets the screen width of the label. A value of 0 will cause the -// primitive to use the width of the label string. -func (d *DropDown) SetLabelWidth(width int) *DropDown { - d.labelWidth = width - return d -} - -// SetLabelColor sets the color of the label. -func (d *DropDown) SetLabelColor(color tcell.Color) *DropDown { - d.labelColor = color - return d -} - -// SetFieldBackgroundColor sets the background color of the options area. -func (d *DropDown) SetFieldBackgroundColor(color tcell.Color) *DropDown { - d.fieldBackgroundColor = color - return d -} - -// SetFieldTextColor sets the text color of the options area. -func (d *DropDown) SetFieldTextColor(color tcell.Color) *DropDown { - d.fieldTextColor = color - return d -} - -// SetPrefixTextColor sets the color of the prefix string. The prefix string is -// shown when the user starts typing text, which directly selects the first -// option that starts with the typed string. -func (d *DropDown) SetPrefixTextColor(color tcell.Color) *DropDown { - d.prefixTextColor = color - return d -} - -// SetFormAttributes sets attributes shared by all form items. -func (d *DropDown) SetFormAttributes(labelWidth int, labelColor, bgColor, fieldTextColor, fieldBgColor tcell.Color) FormItem { - d.labelWidth = labelWidth - d.labelColor = labelColor - d.backgroundColor = bgColor - d.fieldTextColor = fieldTextColor - d.fieldBackgroundColor = fieldBgColor - return d -} - -// SetFieldWidth sets the screen width of the options area. A value of 0 means -// extend to as long as the longest option text. -func (d *DropDown) SetFieldWidth(width int) *DropDown { - d.fieldWidth = width - return d -} - -// GetFieldWidth returns this primitive's field screen width. -func (d *DropDown) GetFieldWidth() int { - if d.fieldWidth > 0 { - return d.fieldWidth - } - fieldWidth := 0 - for _, option := range d.options { - width := StringWidth(option.Text) - if width > fieldWidth { - fieldWidth = width - } - } - return fieldWidth -} - -// AddOption adds a new selectable option to this drop-down. The "selected" -// callback is called when this option was selected. It may be nil. -func (d *DropDown) AddOption(text string, selected func()) *DropDown { - d.options = append(d.options, &dropDownOption{Text: text, Selected: selected}) - d.list.AddItem(text, "", 0, nil) - return d -} - -// SetOptions replaces all current options with the ones provided and installs -// one callback function which is called when one of the options is selected. -// It will be called with the option's text and its index into the options -// slice. The "selected" parameter may be nil. -func (d *DropDown) SetOptions(texts []string, selected func(text string, index int)) *DropDown { - d.list.Clear() - d.options = nil - for index, text := range texts { - func(t string, i int) { - d.AddOption(text, func() { - if selected != nil { - selected(t, i) - } - }) - }(text, index) - } - return d -} - -// SetDoneFunc sets a handler which is called when the user is done selecting -// options. The callback function is provided with the key that was pressed, -// which is one of the following: -// -// - KeyEscape: Abort selection. -// - KeyTab: Move to the next field. -// - KeyBacktab: Move to the previous field. -func (d *DropDown) SetDoneFunc(handler func(key tcell.Key)) *DropDown { - d.done = handler - return d -} - -// SetFinishedFunc sets a callback invoked when the user leaves this form item. -func (d *DropDown) SetFinishedFunc(handler func(key tcell.Key)) FormItem { - d.finished = handler - return d -} - -// Draw draws this primitive onto the screen. -func (d *DropDown) Draw(screen tcell.Screen) { - d.Box.Draw(screen) - - // Prepare. - x, y, width, height := d.GetInnerRect() - rightLimit := x + width - if height < 1 || rightLimit <= x { - return - } - - // Draw label. - if d.labelWidth > 0 { - labelWidth := d.labelWidth - if labelWidth > rightLimit-x { - labelWidth = rightLimit - x - } - Print(screen, d.label, x, y, labelWidth, AlignLeft, d.labelColor) - x += labelWidth - } else { - _, drawnWidth := Print(screen, d.label, x, y, rightLimit-x, AlignLeft, d.labelColor) - x += drawnWidth - } - - // What's the longest option text? - maxWidth := 0 - for _, option := range d.options { - strWidth := StringWidth(option.Text) - if strWidth > maxWidth { - maxWidth = strWidth - } - } - - // Draw selection area. - fieldWidth := d.fieldWidth - if fieldWidth == 0 { - fieldWidth = maxWidth - } - if rightLimit-x < fieldWidth { - fieldWidth = rightLimit - x - } - fieldStyle := tcell.StyleDefault.Background(d.fieldBackgroundColor) - if d.GetFocusable().HasFocus() && !d.open { - fieldStyle = fieldStyle.Background(d.fieldTextColor) - } - for index := 0; index < fieldWidth; index++ { - screen.SetContent(x+index, y, ' ', nil, fieldStyle) - } - - // Draw selected text. - if d.open && len(d.prefix) > 0 { - // Show the prefix. - Print(screen, d.prefix, x, y, fieldWidth, AlignLeft, d.prefixTextColor) - prefixWidth := runewidth.StringWidth(d.prefix) - listItemText := d.options[d.list.GetCurrentItem()].Text - if prefixWidth < fieldWidth && len(d.prefix) < len(listItemText) { - Print(screen, listItemText[len(d.prefix):], x+prefixWidth, y, fieldWidth-prefixWidth, AlignLeft, d.fieldTextColor) - } - } else { - if d.currentOption >= 0 && d.currentOption < len(d.options) { - color := d.fieldTextColor - // Just show the current selection. - if d.GetFocusable().HasFocus() && !d.open { - color = d.fieldBackgroundColor - } - Print(screen, d.options[d.currentOption].Text, x, y, fieldWidth, AlignLeft, color) - } - } - - // Draw options list. - if d.HasFocus() && d.open { - // We prefer to drop down but if there is no space, maybe drop up? - lx := x - ly := y + 1 - lwidth := maxWidth - lheight := len(d.options) - _, sheight := screen.Size() - if ly+lheight >= sheight && ly-2 > lheight-ly { - ly = y - lheight - if ly < 0 { - ly = 0 - } - } - if ly+lheight >= sheight { - lheight = sheight - ly - } - d.list.SetRect(lx, ly, lwidth, lheight) - d.list.Draw(screen) - } -} - -// InputHandler returns the handler for this primitive. -func (d *DropDown) InputHandler() func(event *tcell.EventKey, setFocus func(p Primitive)) { - return d.WrapInputHandler(func(event *tcell.EventKey, setFocus func(p Primitive)) { - // A helper function which selects an item in the drop-down list based on - // the current prefix. - evalPrefix := func() { - if len(d.prefix) > 0 { - for index, option := range d.options { - if strings.HasPrefix(strings.ToLower(option.Text), d.prefix) { - d.list.SetCurrentItem(index) - return - } - } - // Prefix does not match any item. Remove last rune. - r := []rune(d.prefix) - d.prefix = string(r[:len(r)-1]) - } - } - - // Process key event. - switch key := event.Key(); key { - case tcell.KeyEnter, tcell.KeyRune, tcell.KeyDown: - d.prefix = "" - - // If the first key was a letter already, it becomes part of the prefix. - if r := event.Rune(); key == tcell.KeyRune && r != ' ' { - d.prefix += string(r) - evalPrefix() - } - - // Hand control over to the list. - d.open = true - optionBefore := d.currentOption - d.list.SetSelectedFunc(func(index int, mainText, secondaryText string, shortcut rune) { - // An option was selected. Close the list again. - d.open = false - setFocus(d) - d.currentOption = index - - // Trigger "selected" event. - if d.options[d.currentOption].Selected != nil { - d.options[d.currentOption].Selected() - } - }).SetInputCapture(func(event *tcell.EventKey) *tcell.EventKey { - if event.Key() == tcell.KeyRune { - d.prefix += string(event.Rune()) - evalPrefix() - } else if event.Key() == tcell.KeyBackspace || event.Key() == tcell.KeyBackspace2 { - if len(d.prefix) > 0 { - r := []rune(d.prefix) - d.prefix = string(r[:len(r)-1]) - } - evalPrefix() - } else if event.Key() == tcell.KeyEscape { - d.open = false - d.currentOption = optionBefore - setFocus(d) - } else { - d.prefix = "" - } - return event - }) - setFocus(d.list) - case tcell.KeyEscape, tcell.KeyTab, tcell.KeyBacktab: - if d.done != nil { - d.done(key) - } - if d.finished != nil { - d.finished(key) - } - } - }) -} - -// Focus is called by the application when the primitive receives focus. -func (d *DropDown) Focus(delegate func(p Primitive)) { - d.Box.Focus(delegate) - if d.open { - delegate(d.list) - } -} - -// HasFocus returns whether or not this primitive has focus. -func (d *DropDown) HasFocus() bool { - if d.open { - return d.list.HasFocus() - } - return d.hasFocus -} diff --git a/vendor/maunium.net/go/tview/flex.go b/vendor/maunium.net/go/tview/flex.go deleted file mode 100644 index bc1cfe1..0000000 --- a/vendor/maunium.net/go/tview/flex.go +++ /dev/null @@ -1,186 +0,0 @@ -package tview - -import ( - "maunium.net/go/tcell" -) - -// Configuration values. -const ( - FlexRow = iota - FlexColumn -) - -// flexItem holds layout options for one item. -type flexItem struct { - Item Primitive // The item to be positioned. May be nil for an empty item. - FixedSize int // The item's fixed size which may not be changed, 0 if it has no fixed size. - Proportion int // The item's proportion. - Focus bool // Whether or not this item attracts the layout's focus. -} - -// Flex is a basic implementation of the Flexbox layout. The contained -// primitives are arranged horizontally or vertically. The way they are -// distributed along that dimension depends on their layout settings, which is -// either a fixed length or a proportional length. See AddItem() for details. -// -// See https://github.com/rivo/tview/wiki/Flex for an example. -type Flex struct { - *Box - - // The items to be positioned. - items []*flexItem - - // FlexRow or FlexColumn. - direction int - - // If set to true, will use the entire screen as its available space instead - // its box dimensions. - fullScreen bool -} - -// NewFlex returns a new flexbox layout container with no primitives and its -// direction set to FlexColumn. To add primitives to this layout, see AddItem(). -// To change the direction, see SetDirection(). -func NewFlex() *Flex { - f := &Flex{ - Box: NewBox(), - direction: FlexColumn, - } - f.focus = f - return f -} - -// SetDirection sets the direction in which the contained primitives are -// distributed. This can be either FlexColumn (default) or FlexRow. -func (f *Flex) SetDirection(direction int) *Flex { - f.direction = direction - return f -} - -// SetFullScreen sets the flag which, when true, causes the flex layout to use -// the entire screen space instead of whatever size it is currently assigned to. -func (f *Flex) SetFullScreen(fullScreen bool) *Flex { - f.fullScreen = fullScreen - return f -} - -// AddItem adds a new item to the container. The "fixedSize" argument is a width -// or height that may not be changed by the layout algorithm. A value of 0 means -// that its size is flexible and may be changed. The "proportion" argument -// defines the relative size of the item compared to other flexible-size items. -// For example, items with a proportion of 2 will be twice as large as items -// with a proportion of 1. The proportion must be at least 1 if fixedSize == 0 -// (ignored otherwise). -// -// If "focus" is set to true, the item will receive focus when the Flex -// primitive receives focus. If multiple items have the "focus" flag set to -// true, the first one will receive focus. -// -// You can provide a nil value for the primitive. This will still consume screen -// space but nothing will be drawn. -func (f *Flex) AddItem(item Primitive, fixedSize, proportion int, focus bool) *Flex { - f.items = append(f.items, &flexItem{Item: item, FixedSize: fixedSize, Proportion: proportion, Focus: focus}) - return f -} - -// RemoveItem removes all items for the given primitive from the container, -// keeping the order of the remaining items intact. -func (f *Flex) RemoveItem(p Primitive) *Flex { - for index := len(f.items) - 1; index >= 0; index-- { - if f.items[index].Item == p { - f.items = append(f.items[:index], f.items[index+1:]...) - } - } - return f -} - -// ResizeItem sets a new size for the item(s) with the given primitive. If there -// are multiple Flex items with the same primitive, they will all receive the -// same size. For details regarding the size parameters, see AddItem(). -func (f *Flex) ResizeItem(p Primitive, fixedSize, proportion int) *Flex { - for _, item := range f.items { - if item.Item == p { - item.FixedSize = fixedSize - item.Proportion = proportion - } - } - return f -} - -// Draw draws this primitive onto the screen. -func (f *Flex) Draw(screen tcell.Screen) { - f.Box.Draw(screen) - - // Calculate size and position of the items. - - // Do we use the entire screen? - if f.fullScreen { - width, height := screen.Size() - f.SetRect(0, 0, width, height) - } - - // How much space can we distribute? - x, y, width, height := f.GetInnerRect() - var proportionSum int - distSize := width - if f.direction == FlexRow { - distSize = height - } - for _, item := range f.items { - if item.FixedSize > 0 { - distSize -= item.FixedSize - } else { - proportionSum += item.Proportion - } - } - - // Calculate positions and draw items. - pos := x - if f.direction == FlexRow { - pos = y - } - for _, item := range f.items { - size := item.FixedSize - if size <= 0 { - size = distSize * item.Proportion / proportionSum - distSize -= size - proportionSum -= item.Proportion - } - if item.Item != nil { - if f.direction == FlexColumn { - item.Item.SetRect(pos, y, size, height) - } else { - item.Item.SetRect(x, pos, width, size) - } - } - pos += size - - if item.Item != nil { - if item.Item.GetFocusable().HasFocus() { - defer item.Item.Draw(screen) - } else { - item.Item.Draw(screen) - } - } - } -} - -// Focus is called when this primitive receives focus. -func (f *Flex) Focus(delegate func(p Primitive)) { - for _, item := range f.items { - if item.Item != nil && item.Focus { - delegate(item.Item) - return - } - } -} - -// HasFocus returns whether or not this primitive has focus. -func (f *Flex) HasFocus() bool { - for _, item := range f.items { - if item.Item != nil && item.Item.GetFocusable().HasFocus() { - return true - } - } - return false -} diff --git a/vendor/maunium.net/go/tview/focusable.go b/vendor/maunium.net/go/tview/focusable.go deleted file mode 100644 index 99fdaaf..0000000 --- a/vendor/maunium.net/go/tview/focusable.go +++ /dev/null @@ -1,8 +0,0 @@ -package tview - -// Focusable provides a method which determines if a primitive has focus. -// Composed primitives may be focused based on the focused state of their -// contained primitives. -type Focusable interface { - HasFocus() bool -} diff --git a/vendor/maunium.net/go/tview/form.go b/vendor/maunium.net/go/tview/form.go deleted file mode 100644 index e960a52..0000000 --- a/vendor/maunium.net/go/tview/form.go +++ /dev/null @@ -1,564 +0,0 @@ -package tview - -import ( - "maunium.net/go/tcell" -) - -// DefaultFormFieldWidth is the default field screen width of form elements -// whose field width is flexible (0). This is used in the Form class for -// horizontal layouts. -var DefaultFormFieldWidth = 10 - -// FormItem is the interface all form items must implement to be able to be -// included in a form. -type FormItem interface { - Primitive - - // GetLabel returns the item's label text. - GetLabel() string - - // SetFormAttributes sets a number of item attributes at once. - SetFormAttributes(labelWidth int, labelColor, bgColor, fieldTextColor, fieldBgColor tcell.Color) FormItem - - // GetFieldWidth returns the width of the form item's field (the area which - // is manipulated by the user) in number of screen cells. A value of 0 - // indicates the the field width is flexible and may use as much space as - // required. - GetFieldWidth() int - - // SetFinishedFunc sets the handler function for when the user finished - // entering data into the item. The handler may receive events for the - // Enter key (we're done), the Escape key (cancel input), the Tab key (move to - // next field), and the Backtab key (move to previous field). - SetFinishedFunc(handler func(key tcell.Key)) FormItem -} - -// Form allows you to combine multiple one-line form elements into a vertical -// or horizontal layout. Form elements include types such as InputField or -// Checkbox. These elements can be optionally followed by one or more buttons -// for which you can define form-wide actions (e.g. Save, Clear, Cancel). -// -// See https://github.com/rivo/tview/wiki/Form for an example. -type Form struct { - *Box - - // The items of the form (one row per item). - items []FormItem - - // The buttons of the form. - buttons []*Button - - // If set to true, instead of position items and buttons from top to bottom, - // they are positioned from left to right. - horizontal bool - - // The alignment of the buttons. - buttonsAlign int - - // The number of empty rows between items. - itemPadding int - - // The index of the item or button which has focus. (Items are counted first, - // buttons are counted last.) - focusedElement int - - // The label color. - labelColor tcell.Color - - // The background color of the input area. - fieldBackgroundColor tcell.Color - - // The text color of the input area. - fieldTextColor tcell.Color - - // The background color of the buttons. - buttonBackgroundColor tcell.Color - - // The color of the button text. - buttonTextColor tcell.Color - - // An optional function which is called when the user hits Escape. - cancel func() -} - -// NewForm returns a new form. -func NewForm() *Form { - box := NewBox().SetBorderPadding(1, 1, 1, 1) - - f := &Form{ - Box: box, - itemPadding: 1, - labelColor: Styles.SecondaryTextColor, - fieldBackgroundColor: Styles.ContrastBackgroundColor, - fieldTextColor: Styles.PrimaryTextColor, - buttonBackgroundColor: Styles.ContrastBackgroundColor, - buttonTextColor: Styles.PrimaryTextColor, - } - - f.focus = f - - return f -} - -// SetItemPadding sets the number of empty rows between form items for vertical -// layouts and the number of empty cells between form items for horizontal -// layouts. -func (f *Form) SetItemPadding(padding int) *Form { - f.itemPadding = padding - return f -} - -// SetHorizontal sets the direction the form elements are laid out. If set to -// true, instead of positioning them from top to bottom (the default), they are -// positioned from left to right, moving into the next row if there is not -// enough space. -func (f *Form) SetHorizontal(horizontal bool) *Form { - f.horizontal = horizontal - return f -} - -// SetLabelColor sets the color of the labels. -func (f *Form) SetLabelColor(color tcell.Color) *Form { - f.labelColor = color - return f -} - -// SetFieldBackgroundColor sets the background color of the input areas. -func (f *Form) SetFieldBackgroundColor(color tcell.Color) *Form { - f.fieldBackgroundColor = color - return f -} - -// SetFieldTextColor sets the text color of the input areas. -func (f *Form) SetFieldTextColor(color tcell.Color) *Form { - f.fieldTextColor = color - return f -} - -// SetButtonsAlign sets how the buttons align horizontally, one of AlignLeft -// (the default), AlignCenter, and AlignRight. This is only -func (f *Form) SetButtonsAlign(align int) *Form { - f.buttonsAlign = align - return f -} - -// SetButtonBackgroundColor sets the background color of the buttons. -func (f *Form) SetButtonBackgroundColor(color tcell.Color) *Form { - f.buttonBackgroundColor = color - return f -} - -// SetButtonTextColor sets the color of the button texts. -func (f *Form) SetButtonTextColor(color tcell.Color) *Form { - f.buttonTextColor = color - return f -} - -// AddInputField adds an input field to the form. It has a label, an optional -// initial value, a field width (a value of 0 extends it as far as possible), -// an optional accept function to validate the item's value (set to nil to -// accept any text), and an (optional) callback function which is invoked when -// the input field's text has changed. -func (f *Form) AddInputField(label, value string, fieldWidth int, accept func(textToCheck string, lastChar rune) bool, changed func(text string)) *Form { - f.items = append(f.items, NewInputField(). - SetLabel(label). - SetText(value). - SetFieldWidth(fieldWidth). - SetAcceptanceFunc(accept). - SetChangedFunc(changed)) - return f -} - -// AddPasswordField adds a password field to the form. This is similar to an -// input field except that the user's input not shown. Instead, a "mask" -// character is displayed. The password field has a label, an optional initial -// value, a field width (a value of 0 extends it as far as possible), and an -// (optional) callback function which is invoked when the input field's text has -// changed. -func (f *Form) AddPasswordField(label, value string, fieldWidth int, mask rune, changed func(text string)) *Form { - if mask == 0 { - mask = '*' - } - f.items = append(f.items, NewInputField(). - SetLabel(label). - SetText(value). - SetFieldWidth(fieldWidth). - SetMaskCharacter(mask). - SetChangedFunc(changed)) - return f -} - -// AddDropDown adds a drop-down element to the form. It has a label, options, -// and an (optional) callback function which is invoked when an option was -// selected. The initial option may be a negative value to indicate that no -// option is currently selected. -func (f *Form) AddDropDown(label string, options []string, initialOption int, selected func(option string, optionIndex int)) *Form { - f.items = append(f.items, NewDropDown(). - SetLabel(label). - SetCurrentOption(initialOption). - SetOptions(options, selected)) - return f -} - -// AddCheckbox adds a checkbox to the form. It has a label, an initial state, -// and an (optional) callback function which is invoked when the state of the -// checkbox was changed by the user. -func (f *Form) AddCheckbox(label string, checked bool, changed func(checked bool)) *Form { - f.items = append(f.items, NewCheckbox(). - SetLabel(label). - SetChecked(checked). - SetChangedFunc(changed)) - return f -} - -// AddButton adds a new button to the form. The "selected" function is called -// when the user selects this button. It may be nil. -func (f *Form) AddButton(label string, selected func()) *Form { - f.buttons = append(f.buttons, NewButton(label).SetSelectedFunc(selected)) - return f -} - -// GetButton returns the button at the specified 0-based index. Note that -// buttons have been specially prepared for this form and modifying some of -// their attributes may have unintended side effects. -func (f *Form) GetButton(index int) *Button { - return f.buttons[index] -} - -// RemoveButton removes the button at the specified position, starting with 0 -// for the button that was added first. -func (f *Form) RemoveButton(index int) *Form { - f.buttons = append(f.buttons[:index], f.buttons[index+1:]...) - return f -} - -// GetButtonCount returns the number of buttons in this form. -func (f *Form) GetButtonCount() int { - return len(f.buttons) -} - -// GetButtonIndex returns the index of the button with the given label, starting -// with 0 for the button that was added first. If no such label was found, -1 -// is returned. -func (f *Form) GetButtonIndex(label string) int { - for index, button := range f.buttons { - if button.GetLabel() == label { - return index - } - } - return -1 -} - -// Clear removes all input elements from the form, including the buttons if -// specified. -func (f *Form) Clear(includeButtons bool) *Form { - f.items = nil - if includeButtons { - f.buttons = nil - } - f.focusedElement = 0 - return f -} - -// AddFormItem adds a new item to the form. This can be used to add your own -// objects to the form. Note, however, that the Form class will override some -// of its attributes to make it work in the form context. Specifically, these -// are: -// -// - The label width -// - The label color -// - The background color -// - The field text color -// - The field background color -func (f *Form) AddFormItem(item FormItem) *Form { - f.items = append(f.items, item) - return f -} - -// GetFormItem returns the form element at the given position, starting with -// index 0. Elements are referenced in the order they were added. Buttons are -// not included. -func (f *Form) GetFormItem(index int) FormItem { - return f.items[index] -} - -// RemoveFormItem removes the form element at the given position, starting with -// index 0. Elements are referenced in the order they were added. Buttons are -// not included. -func (f *Form) RemoveFormItem(index int) *Form { - f.items = append(f.items[:index], f.items[index+1:]...) - return f -} - -// GetFormItemByLabel returns the first form element with the given label. If -// no such element is found, nil is returned. Buttons are not searched and will -// therefore not be returned. -func (f *Form) GetFormItemByLabel(label string) FormItem { - for _, item := range f.items { - if item.GetLabel() == label { - return item - } - } - return nil -} - -// GetFormItemIndex returns the index of the first form element with the given -// label. If no such element is found, -1 is returned. Buttons are not searched -// and will therefore not be returned. -func (f *Form) GetFormItemIndex(label string) int { - for index, item := range f.items { - if item.GetLabel() == label { - return index - } - } - return -1 -} - -// SetCancelFunc sets a handler which is called when the user hits the Escape -// key. -func (f *Form) SetCancelFunc(callback func()) *Form { - f.cancel = callback - return f -} - -// Draw draws this primitive onto the screen. -func (f *Form) Draw(screen tcell.Screen) { - f.Box.Draw(screen) - - // Determine the dimensions. - x, y, width, height := f.GetInnerRect() - topLimit := y - bottomLimit := y + height - rightLimit := x + width - startX := x - - // Find the longest label. - var maxLabelWidth int - for _, item := range f.items { - labelWidth := StringWidth(item.GetLabel()) - if labelWidth > maxLabelWidth { - maxLabelWidth = labelWidth - } - } - maxLabelWidth++ // Add one space. - - // Calculate positions of form items. - positions := make([]struct{ x, y, width, height int }, len(f.items)+len(f.buttons)) - var focusedPosition struct{ x, y, width, height int } - for index, item := range f.items { - // Calculate the space needed. - labelWidth := StringWidth(item.GetLabel()) - var itemWidth int - if f.horizontal { - fieldWidth := item.GetFieldWidth() - if fieldWidth == 0 { - fieldWidth = DefaultFormFieldWidth - } - labelWidth++ - itemWidth = labelWidth + fieldWidth - } else { - // We want all fields to align vertically. - labelWidth = maxLabelWidth - itemWidth = width - } - - // Advance to next line if there is no space. - if f.horizontal && x+labelWidth+1 >= rightLimit { - x = startX - y += 2 - } - - // Adjust the item's attributes. - if x+itemWidth >= rightLimit { - itemWidth = rightLimit - x - } - item.SetFormAttributes( - labelWidth, - f.labelColor, - f.backgroundColor, - f.fieldTextColor, - f.fieldBackgroundColor, - ) - - // Save position. - positions[index].x = x - positions[index].y = y - positions[index].width = itemWidth - positions[index].height = 1 - if item.GetFocusable().HasFocus() { - focusedPosition = positions[index] - } - - // Advance to next item. - if f.horizontal { - x += itemWidth + f.itemPadding - } else { - y += 1 + f.itemPadding - } - } - - // How wide are the buttons? - buttonWidths := make([]int, len(f.buttons)) - buttonsWidth := 0 - for index, button := range f.buttons { - w := StringWidth(button.GetLabel()) + 4 - buttonWidths[index] = w - buttonsWidth += w + 1 - } - buttonsWidth-- - - // Where do we place them? - if !f.horizontal && x+buttonsWidth < rightLimit { - if f.buttonsAlign == AlignRight { - x = rightLimit - buttonsWidth - } else if f.buttonsAlign == AlignCenter { - x = (x + rightLimit - buttonsWidth) / 2 - } - - // In vertical layouts, buttons always appear after an empty line. - if f.itemPadding == 0 { - y++ - } - } - - // Calculate positions of buttons. - for index, button := range f.buttons { - space := rightLimit - x - buttonWidth := buttonWidths[index] - if f.horizontal { - if space < buttonWidth-4 { - x = startX - y += 2 - space = width - } - } else { - if space < 1 { - break // No space for this button anymore. - } - } - if buttonWidth > space { - buttonWidth = space - } - button.SetLabelColor(f.buttonTextColor). - SetLabelColorActivated(f.buttonBackgroundColor). - SetBackgroundColorActivated(f.buttonTextColor). - SetBackgroundColor(f.buttonBackgroundColor) - - buttonIndex := index + len(f.items) - positions[buttonIndex].x = x - positions[buttonIndex].y = y - positions[buttonIndex].width = buttonWidth - positions[buttonIndex].height = 1 - - if button.HasFocus() { - focusedPosition = positions[buttonIndex] - } - - x += buttonWidth + 1 - } - - // Determine vertical offset based on the position of the focused item. - var offset int - if focusedPosition.y+focusedPosition.height > bottomLimit { - offset = focusedPosition.y + focusedPosition.height - bottomLimit - if focusedPosition.y-offset < topLimit { - offset = focusedPosition.y - topLimit - } - } - - // Draw items. - for index, item := range f.items { - // Set position. - y := positions[index].y - offset - height := positions[index].height - item.SetRect(positions[index].x, y, positions[index].width, height) - - // Is this item visible? - if y+height <= topLimit || y >= bottomLimit { - continue - } - - // Draw items with focus last (in case of overlaps). - if item.GetFocusable().HasFocus() { - defer item.Draw(screen) - } else { - item.Draw(screen) - } - } - - // Draw buttons. - for index, button := range f.buttons { - // Set position. - buttonIndex := index + len(f.items) - y := positions[buttonIndex].y - offset - height := positions[buttonIndex].height - button.SetRect(positions[buttonIndex].x, y, positions[buttonIndex].width, height) - - // Is this button visible? - if y+height <= topLimit || y >= bottomLimit { - continue - } - - // Draw button. - button.Draw(screen) - } -} - -// Focus is called by the application when the primitive receives focus. -func (f *Form) Focus(delegate func(p Primitive)) { - if len(f.items)+len(f.buttons) == 0 { - return - } - - // Hand on the focus to one of our child elements. - if f.focusedElement < 0 || f.focusedElement >= len(f.items)+len(f.buttons) { - f.focusedElement = 0 - } - handler := func(key tcell.Key) { - switch key { - case tcell.KeyTab, tcell.KeyEnter: - f.focusedElement++ - f.Focus(delegate) - case tcell.KeyBacktab: - f.focusedElement-- - if f.focusedElement < 0 { - f.focusedElement = len(f.items) + len(f.buttons) - 1 - } - f.Focus(delegate) - case tcell.KeyEscape: - if f.cancel != nil { - f.cancel() - } else { - f.focusedElement = 0 - f.Focus(delegate) - } - } - } - - if f.focusedElement < len(f.items) { - // We're selecting an item. - item := f.items[f.focusedElement] - item.SetFinishedFunc(handler) - delegate(item) - } else { - // We're selecting a button. - button := f.buttons[f.focusedElement-len(f.items)] - button.SetBlurFunc(handler) - delegate(button) - } -} - -// HasFocus returns whether or not this primitive has focus. -func (f *Form) HasFocus() bool { - for _, item := range f.items { - if item.GetFocusable().HasFocus() { - return true - } - } - for _, button := range f.buttons { - if button.focus.HasFocus() { - return true - } - } - return false -} diff --git a/vendor/maunium.net/go/tview/frame.go b/vendor/maunium.net/go/tview/frame.go deleted file mode 100644 index 47455a2..0000000 --- a/vendor/maunium.net/go/tview/frame.go +++ /dev/null @@ -1,157 +0,0 @@ -package tview - -import ( - "maunium.net/go/tcell" -) - -// frameText holds information about a line of text shown in the frame. -type frameText struct { - Text string // The text to be displayed. - Header bool // true = place in header, false = place in footer. - Align int // One of the Align constants. - Color tcell.Color // The text color. -} - -// Frame is a wrapper which adds a border around another primitive. The top area -// (header) and the bottom area (footer) may also contain text. -// -// See https://github.com/rivo/tview/wiki/Frame for an example. -type Frame struct { - *Box - - // The contained primitive. - primitive Primitive - - // The lines of text to be displayed. - text []*frameText - - // Border spacing. - top, bottom, header, footer, left, right int -} - -// NewFrame returns a new frame around the given primitive. The primitive's -// size will be changed to fit within this frame. -func NewFrame(primitive Primitive) *Frame { - box := NewBox() - - f := &Frame{ - Box: box, - primitive: primitive, - top: 1, - bottom: 1, - header: 1, - footer: 1, - left: 1, - right: 1, - } - - f.focus = f - - return f -} - -// AddText adds text to the frame. Set "header" to true if the text is to appear -// in the header, above the contained primitive. Set it to false for it to -// appear in the footer, below the contained primitive. "align" must be one of -// the Align constants. Rows in the header are printed top to bottom, rows in -// the footer are printed bottom to top. Note that long text can overlap as -// different alignments will be placed on the same row. -func (f *Frame) AddText(text string, header bool, align int, color tcell.Color) *Frame { - f.text = append(f.text, &frameText{ - Text: text, - Header: header, - Align: align, - Color: color, - }) - return f -} - -// Clear removes all text from the frame. -func (f *Frame) Clear() *Frame { - f.text = nil - return f -} - -// SetBorders sets the width of the frame borders as well as "header" and -// "footer", the vertical space between the header and footer text and the -// contained primitive (does not apply if there is no text). -func (f *Frame) SetBorders(top, bottom, header, footer, left, right int) *Frame { - f.top, f.bottom, f.header, f.footer, f.left, f.right = top, bottom, header, footer, left, right - return f -} - -// Draw draws this primitive onto the screen. -func (f *Frame) Draw(screen tcell.Screen) { - f.Box.Draw(screen) - - // Calculate start positions. - x, top, width, height := f.GetInnerRect() - bottom := top + height - 1 - x += f.left - top += f.top - bottom -= f.bottom - width -= f.left + f.right - if width <= 0 || top >= bottom { - return // No space left. - } - - // Draw text. - var rows [6]int // top-left, top-center, top-right, bottom-left, bottom-center, bottom-right. - topMax := top - bottomMin := bottom - for _, text := range f.text { - // Where do we place this text? - var y int - if text.Header { - y = top + rows[text.Align] - rows[text.Align]++ - if y >= bottomMin { - continue - } - if y+1 > topMax { - topMax = y + 1 - } - } else { - y = bottom - rows[3+text.Align] - rows[3+text.Align]++ - if y <= topMax { - continue - } - if y-1 < bottomMin { - bottomMin = y - 1 - } - } - - // Draw text. - Print(screen, text.Text, x, y, width, text.Align, text.Color) - } - - // Set the size of the contained primitive. - if topMax > top { - top = topMax + f.header - } - if bottomMin < bottom { - bottom = bottomMin - f.footer - } - if top > bottom { - return // No space for the primitive. - } - f.primitive.SetRect(x, top, width, bottom+1-top) - - // Finally, draw the contained primitive. - f.primitive.Draw(screen) -} - -// Focus is called when this primitive receives focus. -func (f *Frame) Focus(delegate func(p Primitive)) { - delegate(f.primitive) -} - -// HasFocus returns whether or not this primitive has focus. -func (f *Frame) HasFocus() bool { - focusable, ok := f.primitive.(Focusable) - if ok { - return focusable.HasFocus() - } - return false -} diff --git a/vendor/maunium.net/go/tview/grid.go b/vendor/maunium.net/go/tview/grid.go deleted file mode 100644 index d8f6c97..0000000 --- a/vendor/maunium.net/go/tview/grid.go +++ /dev/null @@ -1,624 +0,0 @@ -package tview - -import ( - "math" - - "maunium.net/go/tcell" -) - -// gridItem represents one primitive and its possible position on a grid. -type gridItem struct { - Item Primitive // The item to be positioned. May be nil for an empty item. - Row, Column int // The top-left grid cell where the item is placed. - Width, Height int // The number of rows and columns the item occupies. - MinGridWidth, MinGridHeight int // The minimum grid width/height for which this item is visible. - Focus bool // Whether or not this item attracts the layout's focus. - - visible bool // Whether or not this item was visible the last time the grid was drawn. - x, y, w, h int // The last position of the item relative to the top-left corner of the grid. Undefined if visible is false. -} - -// Grid is an implementation of a grid-based layout. It works by defining the -// size of the rows and columns, then placing primitives into the grid. -// -// Some settings can lead to the grid exceeding its available space. SetOffset() -// can then be used to scroll in steps of rows and columns. These offset values -// can also be controlled with the arrow keys (or the "g","G", "j", "k", "h", -// and "l" keys) while the grid has focus and none of its contained primitives -// do. -// -// See https://github.com/rivo/tview/wiki/Grid for an example. -type Grid struct { - *Box - - // The items to be positioned. - items []*gridItem - - // The definition of the rows and columns of the grid. See - // SetRows()/SetColumns() for details. - rows, columns []int - - // The minimum sizes for rows and columns. - minWidth, minHeight int - - // The size of the gaps between neighboring primitives. This is automatically - // set to 1 if borders is true. - gapRows, gapColumns int - - // The number of rows and columns skipped before drawing the top-left corner - // of the grid. - rowOffset, columnOffset int - - // Whether or not borders are drawn around grid items. If this is set to true, - // a gap size of 1 is automatically assumed (which is filled with the border - // graphics). - borders bool - - // The color of the borders around grid items. - bordersColor tcell.Color -} - -// NewGrid returns a new grid-based layout container with no initial primitives. -func NewGrid() *Grid { - g := &Grid{ - Box: NewBox(), - bordersColor: Styles.GraphicsColor, - } - g.focus = g - return g -} - -// SetRows defines how the rows of the grid are distributed. Each value defines -// the size of one row, starting with the leftmost row. Values greater 0 -// represent absolute row widths (gaps not included). Values less or equal 0 -// represent proportional row widths or fractions of the remaining free space, -// where 0 is treated the same as -1. That is, a row with a value of -3 will -// have three times the width of a row with a value of -1 (or 0). The minimum -// width set with SetMinSize() is always observed. -// -// Primitives may extend beyond the rows defined explicitly with this function. -// A value of 0 is assumed for any undefined row. In fact, if you never call -// this function, all rows occupied by primitives will have the same width. -// On the other hand, unoccupied rows defined with this function will always -// take their place. -// -// Assuming a total width of the grid of 100 cells and a minimum width of 0, the -// following call will result in rows with widths of 30, 10, 15, 15, and 30 -// cells: -// -// grid.SetRows(30, 10, -1, -1, -2) -// -// If a primitive were then placed in the 6th and 7th row, the resulting widths -// would be: 30, 10, 10, 10, 20, 10, and 10 cells. -// -// If you then called SetMinSize() as follows: -// -// grid.SetMinSize(15, 20) -// -// The resulting widths would be: 30, 15, 15, 15, 20, 15, and 15 cells, a total -// of 125 cells, 25 cells wider than the available grid width. -func (g *Grid) SetRows(rows ...int) *Grid { - g.rows = rows - return g -} - -// SetColumns defines how the columns of the grid are distributed. These values -// behave the same as the row values provided with SetRows(), see there for -// a definition and examples. -// -// The provided values correspond to column heights, the first value defining -// the height of the topmost column. -func (g *Grid) SetColumns(columns ...int) *Grid { - g.columns = columns - return g -} - -// SetSize is a shortcut for SetRows() and SetColumns() where all row and column -// values are set to the given size values. See SetRows() for details on sizes. -func (g *Grid) SetSize(numRows, numColumns, rowSize, columnSize int) *Grid { - g.rows = make([]int, numRows) - for index := range g.rows { - g.rows[index] = rowSize - } - g.columns = make([]int, numColumns) - for index := range g.columns { - g.columns[index] = columnSize - } - return g -} - -// SetMinSize sets an absolute minimum width for rows and an absolute minimum -// height for columns. Panics if negative values are provided. -func (g *Grid) SetMinSize(row, column int) *Grid { - if row < 0 || column < 0 { - panic("Invalid minimum row/column size") - } - g.minHeight, g.minWidth = row, column - return g -} - -// SetGap sets the size of the gaps between neighboring primitives on the grid. -// If borders are drawn (see SetBorders()), these values are ignored and a gap -// of 1 is assumed. Panics if negative values are provided. -func (g *Grid) SetGap(row, column int) *Grid { - if row < 0 || column < 0 { - panic("Invalid gap size") - } - g.gapRows, g.gapColumns = row, column - return g -} - -// SetBorders sets whether or not borders are drawn around grid items. Setting -// this value to true will cause the gap values (see SetGap()) to be ignored and -// automatically assumed to be 1 where the border graphics are drawn. -func (g *Grid) SetBorders(borders bool) *Grid { - g.borders = borders - return g -} - -// SetBordersColor sets the color of the item borders. -func (g *Grid) SetBordersColor(color tcell.Color) *Grid { - g.bordersColor = color - return g -} - -// AddItem adds a primitive and its position to the grid. The top-left corner -// of the primitive will be located in the top-left corner of the grid cell at -// the given row and column and will span "width" rows and "height" columns. For -// example, for a primitive to occupy rows 2, 3, and 4 and columns 5 and 6: -// -// grid.AddItem(p, 2, 4, 3, 2, true) -// -// If width or height is 0, the primitive will not be drawn. -// -// You can add the same primitive multiple times with different grid positions. -// The minGridWidth and minGridHeight values will then determine which of those -// positions will be used. This is similar to CSS media queries. These minimum -// values refer to the overall size of the grid. If multiple items for the same -// primitive apply, the one that has at least one highest minimum value will be -// used, or the primitive added last if those values are the same. Example: -// -// grid.AddItem(p, 0, 0, 0, 0, 0, 0, true). // Hide in small grids. -// AddItem(p, 0, 0, 1, 2, 100, 0, true). // One-column layout for medium grids. -// AddItem(p, 1, 1, 3, 2, 300, 0, true) // Multi-column layout for large grids. -// -// To use the same grid layout for all sizes, simply set minGridWidth and -// minGridHeight to 0. -// -// If the item's focus is set to true, it will receive focus when the grid -// receives focus. If there are multiple items with a true focus flag, the last -// visible one that was added will receive focus. -func (g *Grid) AddItem(p Primitive, row, column, height, width, minGridHeight, minGridWidth int, focus bool) *Grid { - g.items = append(g.items, &gridItem{ - Item: p, - Row: row, - Column: column, - Height: height, - Width: width, - MinGridHeight: minGridHeight, - MinGridWidth: minGridWidth, - Focus: focus, - }) - return g -} - -// RemoveItem removes all items for the given primitive from the grid, keeping -// the order of the remaining items intact. -func (g *Grid) RemoveItem(p Primitive) *Grid { - for index := len(g.items) - 1; index >= 0; index-- { - if g.items[index].Item == p { - g.items = append(g.items[:index], g.items[index+1:]...) - } - } - return g -} - -// Clear removes all items from the grid. -func (g *Grid) Clear() *Grid { - g.items = nil - return g -} - -// SetOffset sets the number of rows and columns which are skipped before -// drawing the first grid cell in the top-left corner. As the grid will never -// completely move off the screen, these values may be adjusted the next time -// the grid is drawn. The actual position of the grid may also be adjusted such -// that contained primitives that have focus are visible. -func (g *Grid) SetOffset(rows, columns int) *Grid { - g.rowOffset, g.columnOffset = rows, columns - return g -} - -// GetOffset returns the current row and column offset (see SetOffset() for -// details). -func (g *Grid) GetOffset() (rows, columns int) { - return g.rowOffset, g.columnOffset -} - -// Focus is called when this primitive receives focus. -func (g *Grid) Focus(delegate func(p Primitive)) { - for _, item := range g.items { - if item.Focus { - delegate(item.Item) - return - } - } - g.hasFocus = true -} - -// Blur is called when this primitive loses focus. -func (g *Grid) Blur() { - g.hasFocus = false -} - -// HasFocus returns whether or not this primitive has focus. -func (g *Grid) HasFocus() bool { - for _, item := range g.items { - if item.visible && item.Item.GetFocusable().HasFocus() { - return true - } - } - return g.hasFocus -} - -// InputHandler returns the handler for this primitive. -func (g *Grid) InputHandler() func(event *tcell.EventKey, setFocus func(p Primitive)) { - return g.WrapInputHandler(func(event *tcell.EventKey, setFocus func(p Primitive)) { - switch event.Key() { - case tcell.KeyRune: - switch event.Rune() { - case 'g': - g.rowOffset, g.columnOffset = 0, 0 - case 'G': - g.rowOffset = math.MaxInt32 - case 'j': - g.rowOffset++ - case 'k': - g.rowOffset-- - case 'h': - g.columnOffset-- - case 'l': - g.columnOffset++ - } - case tcell.KeyHome: - g.rowOffset, g.columnOffset = 0, 0 - case tcell.KeyEnd: - g.rowOffset = math.MaxInt32 - case tcell.KeyUp: - g.rowOffset-- - case tcell.KeyDown: - g.rowOffset++ - case tcell.KeyLeft: - g.columnOffset-- - case tcell.KeyRight: - g.columnOffset++ - } - }) -} - -// Draw draws this primitive onto the screen. -func (g *Grid) Draw(screen tcell.Screen) { - g.Box.Draw(screen) - x, y, width, height := g.GetInnerRect() - - // Make a list of items which apply. - items := make(map[Primitive]*gridItem) - for _, item := range g.items { - item.visible = false - if item.Width <= 0 || item.Height <= 0 || width < item.MinGridWidth || height < item.MinGridHeight { - continue - } - previousItem, ok := items[item.Item] - if ok && item.Width < previousItem.Width && item.Height < previousItem.Height { - continue - } - items[item.Item] = item - } - - // How many rows and columns do we have? - rows := len(g.rows) - columns := len(g.columns) - for _, item := range items { - rowEnd := item.Row + item.Height - if rowEnd > rows { - rows = rowEnd - } - columnEnd := item.Column + item.Width - if columnEnd > columns { - columns = columnEnd - } - } - if rows == 0 || columns == 0 { - return // No content. - } - - // Where are they located? - rowPos := make([]int, rows) - rowHeight := make([]int, rows) - columnPos := make([]int, columns) - columnWidth := make([]int, columns) - - // How much space do we distribute? - remainingWidth := width - remainingHeight := height - proportionalWidth := 0 - proportionalHeight := 0 - for index, row := range g.rows { - if row > 0 { - if row < g.minHeight { - row = g.minHeight - } - remainingHeight -= row - rowHeight[index] = row - } else if row == 0 { - proportionalHeight++ - } else { - proportionalHeight += -row - } - } - for index, column := range g.columns { - if column > 0 { - if column < g.minWidth { - column = g.minWidth - } - remainingWidth -= column - columnWidth[index] = column - } else if column == 0 { - proportionalWidth++ - } else { - proportionalWidth += -column - } - } - if g.borders { - remainingHeight -= rows + 1 - remainingWidth -= columns + 1 - } else { - remainingHeight -= (rows - 1) * g.gapRows - remainingWidth -= (columns - 1) * g.gapColumns - } - if rows > len(g.rows) { - proportionalHeight += rows - len(g.rows) - } - if columns > len(g.columns) { - proportionalWidth += columns - len(g.columns) - } - - // Distribute proportional rows/columns. - gridWidth := 0 - gridHeight := 0 - for index := 0; index < rows; index++ { - row := 0 - if index < len(g.rows) { - row = g.rows[index] - } - if row > 0 { - if row < g.minHeight { - row = g.minHeight - } - gridHeight += row - continue // Not proportional. We already know the width. - } else if row == 0 { - row = 1 - } else { - row = -row - } - rowAbs := row * remainingHeight / proportionalHeight - remainingHeight -= rowAbs - proportionalHeight -= row - if rowAbs < g.minHeight { - rowAbs = g.minHeight - } - rowHeight[index] = rowAbs - gridHeight += rowAbs - } - for index := 0; index < columns; index++ { - column := 0 - if index < len(g.columns) { - column = g.columns[index] - } - if column > 0 { - if column < g.minWidth { - column = g.minWidth - } - gridWidth += column - continue // Not proportional. We already know the height. - } else if column == 0 { - column = 1 - } else { - column = -column - } - columnAbs := column * remainingWidth / proportionalWidth - remainingWidth -= columnAbs - proportionalWidth -= column - if columnAbs < g.minWidth { - columnAbs = g.minWidth - } - columnWidth[index] = columnAbs - gridWidth += columnAbs - } - if g.borders { - gridHeight += rows + 1 - gridWidth += columns + 1 - } else { - gridHeight += (rows - 1) * g.gapRows - gridWidth += (columns - 1) * g.gapColumns - } - - // Calculate row/column positions. - columnX, rowY := x, y - if g.borders { - columnX++ - rowY++ - } - for index, row := range rowHeight { - rowPos[index] = rowY - gap := g.gapRows - if g.borders { - gap = 1 - } - rowY += row + gap - } - for index, column := range columnWidth { - columnPos[index] = columnX - gap := g.gapColumns - if g.borders { - gap = 1 - } - columnX += column + gap - } - - // Calculate primitive positions. - var focus *gridItem // The item which has focus. - for primitive, item := range items { - px := columnPos[item.Column] - py := rowPos[item.Row] - var pw, ph int - for index := 0; index < item.Height; index++ { - ph += rowHeight[item.Row+index] - } - for index := 0; index < item.Width; index++ { - pw += columnWidth[item.Column+index] - } - if g.borders { - pw += item.Width - 1 - ph += item.Height - 1 - } else { - pw += (item.Width - 1) * g.gapColumns - ph += (item.Height - 1) * g.gapRows - } - item.x, item.y, item.w, item.h = px, py, pw, ph - item.visible = true - if primitive.GetFocusable().HasFocus() { - focus = item - } - } - - // Calculate screen offsets. - var offsetX, offsetY, add int - if g.rowOffset < 0 { - g.rowOffset = 0 - } - if g.columnOffset < 0 { - g.columnOffset = 0 - } - if g.borders { - add = 1 - } - for row := 0; row < rows-1; row++ { - remainingHeight := gridHeight - offsetY - if focus != nil && focus.y-add <= offsetY || // Don't let the focused item move out of screen. - row >= g.rowOffset && (focus == nil || focus != nil && focus.y-offsetY < height) || // We've reached the requested offset. - remainingHeight <= height { // We have enough space to show the rest. - if row > 0 { - if focus != nil && focus.y+focus.h+add-offsetY > height { - offsetY += focus.y + focus.h + add - offsetY - height - } - if remainingHeight < height { - offsetY = gridHeight - height - } - } - g.rowOffset = row - break - } - offsetY = rowPos[row+1] - add - } - for column := 0; column < columns-1; column++ { - remainingWidth := gridWidth - offsetX - if focus != nil && focus.x-add <= offsetX || // Don't let the focused item move out of screen. - column >= g.columnOffset && (focus == nil || focus != nil && focus.x-offsetX < width) || // We've reached the requested offset. - remainingWidth <= width { // We have enough space to show the rest. - if column > 0 { - if focus != nil && focus.x+focus.w+add-offsetX > width { - offsetX += focus.x + focus.w + add - offsetX - width - } else if remainingWidth < width { - offsetX = gridWidth - width - } - } - g.columnOffset = column - break - } - offsetX = columnPos[column+1] - add - } - - // Draw primitives and borders. - for primitive, item := range items { - // Final primitive position. - if !item.visible { - continue - } - item.x -= offsetX - item.y -= offsetY - if item.x+item.w > width { - item.w = width - item.x - } - if item.y+item.h > height { - item.h = height - item.y - } - if item.x < 0 { - item.w += item.x - item.x = 0 - } - if item.y < 0 { - item.h += item.y - item.y = 0 - } - if item.w <= 0 || item.h <= 0 { - item.visible = false - continue - } - primitive.SetRect(x+item.x, y+item.y, item.w, item.h) - - // Draw primitive. - if item == focus { - defer primitive.Draw(screen) - } else { - primitive.Draw(screen) - } - - // Draw border around primitive. - if g.borders { - for bx := item.x; bx < item.x+item.w; bx++ { // Top/bottom lines. - if bx < 0 || bx >= width { - continue - } - by := item.y - 1 - if by >= 0 && by < height { - PrintJoinedSemigraphics(screen, x+bx, y+by, Borders.Horizontal, g.bordersColor) - } - by = item.y + item.h - if by >= 0 && by < height { - PrintJoinedSemigraphics(screen, x+bx, y+by, Borders.Horizontal, g.bordersColor) - } - } - for by := item.y; by < item.y+item.h; by++ { // Left/right lines. - if by < 0 || by >= height { - continue - } - bx := item.x - 1 - if bx >= 0 && bx < width { - PrintJoinedSemigraphics(screen, x+bx, y+by, Borders.Vertical, g.bordersColor) - } - bx = item.x + item.w - if bx >= 0 && bx < width { - PrintJoinedSemigraphics(screen, x+bx, y+by, Borders.Vertical, g.bordersColor) - } - } - bx, by := item.x-1, item.y-1 // Top-left corner. - if bx >= 0 && bx < width && by >= 0 && by < height { - PrintJoinedSemigraphics(screen, x+bx, y+by, Borders.TopLeft, g.bordersColor) - } - bx, by = item.x+item.w, item.y-1 // Top-right corner. - if bx >= 0 && bx < width && by >= 0 && by < height { - PrintJoinedSemigraphics(screen, x+bx, y+by, Borders.TopRight, g.bordersColor) - } - bx, by = item.x-1, item.y+item.h // Bottom-left corner. - if bx >= 0 && bx < width && by >= 0 && by < height { - PrintJoinedSemigraphics(screen, x+bx, y+by, Borders.BottomLeft, g.bordersColor) - } - bx, by = item.x+item.w, item.y+item.h // Bottom-right corner. - if bx >= 0 && bx < width && by >= 0 && by < height { - PrintJoinedSemigraphics(screen, x+bx, y+by, Borders.BottomRight, g.bordersColor) - } - } - } -} diff --git a/vendor/maunium.net/go/tview/inputfield.go b/vendor/maunium.net/go/tview/inputfield.go deleted file mode 100644 index ccc66e3..0000000 --- a/vendor/maunium.net/go/tview/inputfield.go +++ /dev/null @@ -1,445 +0,0 @@ -package tview - -import ( - "math" - "regexp" - "strings" - "unicode/utf8" - - "maunium.net/go/tcell" - runewidth "github.com/mattn/go-runewidth" -) - -// InputField is a one-line box (three lines if there is a title) where the -// user can enter text. Use SetAcceptanceFunc() to accept or reject input, -// SetChangedFunc() to listen for changes, and SetMaskCharacter() to hide input -// from onlookers (e.g. for password input). -// -// The following keys can be used for navigation and editing: -// -// - Left arrow: Move left by one character. -// - Right arrow: Move right by one character. -// - Home, Ctrl-A, Alt-a: Move to the beginning of the line. -// - End, Ctrl-E, Alt-e: Move to the end of the line. -// - Alt-left, Alt-b: Move left by one word. -// - Alt-right, Alt-f: Move right by one word. -// - Backspace: Delete the character before the cursor. -// - Delete: Delete the character after the cursor. -// - Ctrl-K: Delete from the cursor to the end of the line. -// - Ctrl-W: Delete the last word before the cursor. -// - Ctrl-U: Delete the entire line. -// -// See https://github.com/rivo/tview/wiki/InputField for an example. -type InputField struct { - *Box - - // The text that was entered. - text string - - // The text to be displayed before the input area. - label string - - // The text to be displayed in the input area when "text" is empty. - placeholder string - - // The label color. - labelColor tcell.Color - - // The background color of the input area. - fieldBackgroundColor tcell.Color - - // The text color of the input area. - fieldTextColor tcell.Color - - // The text color of the placeholder. - placeholderTextColor tcell.Color - - // The screen width of the label area. A value of 0 means use the width of - // the label text. - labelWidth int - - // The screen width of the input area. A value of 0 means extend as much as - // possible. - fieldWidth int - - // A character to mask entered text (useful for password fields). A value of 0 - // disables masking. - maskCharacter rune - - // The cursor position as a byte index into the text string. - cursorPos int - - // The number of bytes of the text string skipped ahead while drawing. - offset int - - // An optional function which may reject the last character that was entered. - accept func(text string, ch rune) bool - - // An optional function which is called when the input has changed. - changed func(text string) - - // An optional function which is called when the user indicated that they - // are done entering text. The key which was pressed is provided (tab, - // shift-tab, enter, or escape). - done func(tcell.Key) - - // A callback function set by the Form class and called when the user leaves - // this form item. - finished func(tcell.Key) -} - -// NewInputField returns a new input field. -func NewInputField() *InputField { - return &InputField{ - Box: NewBox(), - labelColor: Styles.SecondaryTextColor, - fieldBackgroundColor: Styles.ContrastBackgroundColor, - fieldTextColor: Styles.PrimaryTextColor, - placeholderTextColor: Styles.ContrastSecondaryTextColor, - } -} - -// SetText sets the current text of the input field. -func (i *InputField) SetText(text string) *InputField { - i.text = text - i.cursorPos = len(text) - if i.changed != nil { - i.changed(text) - } - return i -} - -// GetText returns the current text of the input field. -func (i *InputField) GetText() string { - return i.text -} - -// SetLabel sets the text to be displayed before the input area. -func (i *InputField) SetLabel(label string) *InputField { - i.label = label - return i -} - -// GetLabel returns the text to be displayed before the input area. -func (i *InputField) GetLabel() string { - return i.label -} - -// SetLabelWidth sets the screen width of the label. A value of 0 will cause the -// primitive to use the width of the label string. -func (i *InputField) SetLabelWidth(width int) *InputField { - i.labelWidth = width - return i -} - -// SetPlaceholder sets the text to be displayed when the input text is empty. -func (i *InputField) SetPlaceholder(text string) *InputField { - i.placeholder = text - return i -} - -// SetLabelColor sets the color of the label. -func (i *InputField) SetLabelColor(color tcell.Color) *InputField { - i.labelColor = color - return i -} - -// SetFieldBackgroundColor sets the background color of the input area. -func (i *InputField) SetFieldBackgroundColor(color tcell.Color) *InputField { - i.fieldBackgroundColor = color - return i -} - -// SetFieldTextColor sets the text color of the input area. -func (i *InputField) SetFieldTextColor(color tcell.Color) *InputField { - i.fieldTextColor = color - return i -} - -// SetPlaceholderTextColor sets the text color of placeholder text. -func (i *InputField) SetPlaceholderTextColor(color tcell.Color) *InputField { - i.placeholderTextColor = color - return i -} - -// SetFormAttributes sets attributes shared by all form items. -func (i *InputField) SetFormAttributes(labelWidth int, labelColor, bgColor, fieldTextColor, fieldBgColor tcell.Color) FormItem { - i.labelWidth = labelWidth - i.labelColor = labelColor - i.backgroundColor = bgColor - i.fieldTextColor = fieldTextColor - i.fieldBackgroundColor = fieldBgColor - return i -} - -// SetFieldWidth sets the screen width of the input area. A value of 0 means -// extend as much as possible. -func (i *InputField) SetFieldWidth(width int) *InputField { - i.fieldWidth = width - return i -} - -// GetFieldWidth returns this primitive's field width. -func (i *InputField) GetFieldWidth() int { - return i.fieldWidth -} - -// SetMaskCharacter sets a character that masks user input on a screen. A value -// of 0 disables masking. -func (i *InputField) SetMaskCharacter(mask rune) *InputField { - i.maskCharacter = mask - return i -} - -// SetAcceptanceFunc sets a handler which may reject the last character that was -// entered (by returning false). -// -// This package defines a number of variables prefixed with InputField which may -// be used for common input (e.g. numbers, maximum text length). -func (i *InputField) SetAcceptanceFunc(handler func(textToCheck string, lastChar rune) bool) *InputField { - i.accept = handler - return i -} - -// SetChangedFunc sets a handler which is called whenever the text of the input -// field has changed. It receives the current text (after the change). -func (i *InputField) SetChangedFunc(handler func(text string)) *InputField { - i.changed = handler - return i -} - -// SetDoneFunc sets a handler which is called when the user is done entering -// text. The callback function is provided with the key that was pressed, which -// is one of the following: -// -// - KeyEnter: Done entering text. -// - KeyEscape: Abort text input. -// - KeyTab: Move to the next field. -// - KeyBacktab: Move to the previous field. -func (i *InputField) SetDoneFunc(handler func(key tcell.Key)) *InputField { - i.done = handler - return i -} - -// SetFinishedFunc sets a callback invoked when the user leaves this form item. -func (i *InputField) SetFinishedFunc(handler func(key tcell.Key)) FormItem { - i.finished = handler - return i -} - -// Draw draws this primitive onto the screen. -func (i *InputField) Draw(screen tcell.Screen) { - i.Box.Draw(screen) - - // Prepare - x, y, width, height := i.GetInnerRect() - rightLimit := x + width - if height < 1 || rightLimit <= x { - return - } - - // Draw label. - if i.labelWidth > 0 { - labelWidth := i.labelWidth - if labelWidth > rightLimit-x { - labelWidth = rightLimit - x - } - Print(screen, i.label, x, y, labelWidth, AlignLeft, i.labelColor) - x += labelWidth - } else { - _, drawnWidth := Print(screen, i.label, x, y, rightLimit-x, AlignLeft, i.labelColor) - x += drawnWidth - } - - // Draw input area. - fieldWidth := i.fieldWidth - if fieldWidth == 0 { - fieldWidth = math.MaxInt32 - } - if rightLimit-x < fieldWidth { - fieldWidth = rightLimit - x - } - fieldStyle := tcell.StyleDefault.Background(i.fieldBackgroundColor) - for index := 0; index < fieldWidth; index++ { - screen.SetContent(x+index, y, ' ', nil, fieldStyle) - } - - // Text. - var cursorScreenPos int - text := i.text - if text == "" && i.placeholder != "" { - // Draw placeholder text. - Print(screen, Escape(i.placeholder), x, y, fieldWidth, AlignLeft, i.placeholderTextColor) - i.offset = 0 - } else { - // Draw entered text. - if i.maskCharacter > 0 { - text = strings.Repeat(string(i.maskCharacter), utf8.RuneCountInString(i.text)) - } - stringWidth := runewidth.StringWidth(text) - if fieldWidth >= stringWidth { - // We have enough space for the full text. - Print(screen, Escape(text), x, y, fieldWidth, AlignLeft, i.fieldTextColor) - i.offset = 0 - iterateString(text, func(main rune, comb []rune, textPos, textWidth, screenPos, screenWidth int) bool { - if textPos >= i.cursorPos { - return true - } - cursorScreenPos += screenWidth - return false - }) - } else { - // The text doesn't fit. Where is the cursor? - if i.cursorPos < 0 { - i.cursorPos = 0 - } else if i.cursorPos > len(text) { - i.cursorPos = len(text) - } - // Shift the text so the cursor is inside the field. - var shiftLeft int - if i.offset > i.cursorPos { - i.offset = i.cursorPos - } else if subWidth := runewidth.StringWidth(text[i.offset:i.cursorPos]); subWidth > fieldWidth-1 { - shiftLeft = subWidth - fieldWidth + 1 - } - currentOffset := i.offset - iterateString(text, func(main rune, comb []rune, textPos, textWidth, screenPos, screenWidth int) bool { - if textPos >= currentOffset { - if shiftLeft > 0 { - i.offset = textPos + textWidth - shiftLeft -= screenWidth - } else { - if textPos+textWidth > i.cursorPos { - return true - } - cursorScreenPos += screenWidth - } - } - return false - }) - Print(screen, Escape(text[i.offset:]), x, y, fieldWidth, AlignLeft, i.fieldTextColor) - } - } - - // Set cursor. - if i.focus.HasFocus() { - screen.ShowCursor(x+cursorScreenPos, y) - } -} - -// InputHandler returns the handler for this primitive. -func (i *InputField) InputHandler() func(event *tcell.EventKey, setFocus func(p Primitive)) { - return i.WrapInputHandler(func(event *tcell.EventKey, setFocus func(p Primitive)) { - // Trigger changed events. - currentText := i.text - defer func() { - if i.text != currentText && i.changed != nil { - i.changed(i.text) - } - }() - - // Movement functions. - home := func() { i.cursorPos = 0 } - end := func() { i.cursorPos = len(i.text) } - moveLeft := func() { - iterateStringReverse(i.text[:i.cursorPos], func(main rune, comb []rune, textPos, textWidth, screenPos, screenWidth int) bool { - i.cursorPos -= textWidth - return true - }) - } - moveRight := func() { - iterateString(i.text[i.cursorPos:], func(main rune, comb []rune, textPos, textWidth, screenPos, screenWidth int) bool { - i.cursorPos += textWidth - return true - }) - } - moveWordLeft := func() { - i.cursorPos = len(regexp.MustCompile(`\S+\s*$`).ReplaceAllString(i.text[:i.cursorPos], "")) - } - moveWordRight := func() { - i.cursorPos = len(i.text) - len(regexp.MustCompile(`^\s*\S+\s*`).ReplaceAllString(i.text[i.cursorPos:], "")) - } - - // Add character function. Returns whether or not the rune character is - // accepted. - add := func(r rune) bool { - newText := i.text[:i.cursorPos] + string(r) + i.text[i.cursorPos:] - if i.accept != nil { - return i.accept(newText, r) - } - i.text = newText - i.cursorPos += len(string(r)) - return true - } - - // Process key event. - switch key := event.Key(); key { - case tcell.KeyRune: // Regular character. - if event.Modifiers()&tcell.ModAlt > 0 { - // We accept some Alt- key combinations. - switch event.Rune() { - case 'a': // Home. - home() - case 'e': // End. - end() - case 'b': // Move word left. - moveWordLeft() - case 'f': // Move word right. - moveWordRight() - } - } else { - // Other keys are simply accepted as regular characters. - if !add(event.Rune()) { - break - } - } - case tcell.KeyCtrlU: // Delete all. - i.text = "" - i.cursorPos = 0 - case tcell.KeyCtrlK: // Delete until the end of the line. - i.text = i.text[:i.cursorPos] - case tcell.KeyCtrlW: // Delete last word. - lastWord := regexp.MustCompile(`\S+\s*$`) - newText := lastWord.ReplaceAllString(i.text[:i.cursorPos], "") + i.text[i.cursorPos:] - i.cursorPos -= len(i.text) - len(newText) - i.text = newText - case tcell.KeyBackspace, tcell.KeyBackspace2: // Delete character before the cursor. - iterateStringReverse(i.text[:i.cursorPos], func(main rune, comb []rune, textPos, textWidth, screenPos, screenWidth int) bool { - i.text = i.text[:textPos] + i.text[textPos+textWidth:] - i.cursorPos -= textWidth - return true - }) - if i.offset >= i.cursorPos { - i.offset = 0 - } - case tcell.KeyDelete: // Delete character after the cursor. - iterateString(i.text[i.cursorPos:], func(main rune, comb []rune, textPos, textWidth, screenPos, screenWidth int) bool { - i.text = i.text[:i.cursorPos] + i.text[i.cursorPos+textWidth:] - return true - }) - case tcell.KeyLeft: - if event.Modifiers()&tcell.ModAlt > 0 { - moveWordLeft() - } else { - moveLeft() - } - case tcell.KeyRight: - if event.Modifiers()&tcell.ModAlt > 0 { - moveWordRight() - } else { - moveRight() - } - case tcell.KeyHome, tcell.KeyCtrlA: - home() - case tcell.KeyEnd, tcell.KeyCtrlE: - end() - case tcell.KeyEnter, tcell.KeyTab, tcell.KeyBacktab, tcell.KeyEscape: // We're done. - if i.done != nil { - i.done(key) - } - if i.finished != nil { - i.finished(key) - } - } - }) -} diff --git a/vendor/maunium.net/go/tview/list.go b/vendor/maunium.net/go/tview/list.go deleted file mode 100644 index e8dc5dd..0000000 --- a/vendor/maunium.net/go/tview/list.go +++ /dev/null @@ -1,362 +0,0 @@ -package tview - -import ( - "fmt" - - "maunium.net/go/tcell" -) - -// listItem represents one item in a List. -type listItem struct { - MainText string // The main text of the list item. - SecondaryText string // A secondary text to be shown underneath the main text. - Shortcut rune // The key to select the list item directly, 0 if there is no shortcut. - Selected func() // The optional function which is called when the item is selected. -} - -// List displays rows of items, each of which can be selected. -// -// See https://github.com/rivo/tview/wiki/List for an example. -type List struct { - *Box - - // The items of the list. - items []*listItem - - // The index of the currently selected item. - currentItem int - - // Whether or not to show the secondary item texts. - showSecondaryText bool - - // The item main text color. - mainTextColor tcell.Color - - // The item secondary text color. - secondaryTextColor tcell.Color - - // The item shortcut text color. - shortcutColor tcell.Color - - // The text color for selected items. - selectedTextColor tcell.Color - - // The background color for selected items. - selectedBackgroundColor tcell.Color - - // An optional function which is called when the user has navigated to a list - // item. - changed func(index int, mainText, secondaryText string, shortcut rune) - - // An optional function which is called when a list item was selected. This - // function will be called even if the list item defines its own callback. - selected func(index int, mainText, secondaryText string, shortcut rune) - - // An optional function which is called when the user presses the Escape key. - done func() -} - -// NewList returns a new form. -func NewList() *List { - return &List{ - Box: NewBox(), - showSecondaryText: true, - mainTextColor: Styles.PrimaryTextColor, - secondaryTextColor: Styles.TertiaryTextColor, - shortcutColor: Styles.SecondaryTextColor, - selectedTextColor: Styles.PrimitiveBackgroundColor, - selectedBackgroundColor: Styles.PrimaryTextColor, - } -} - -// SetCurrentItem sets the currently selected item by its index. This triggers -// a "changed" event. -func (l *List) SetCurrentItem(index int) *List { - l.currentItem = index - if l.currentItem < len(l.items) && l.changed != nil { - item := l.items[l.currentItem] - l.changed(l.currentItem, item.MainText, item.SecondaryText, item.Shortcut) - } - return l -} - -// GetCurrentItem returns the index of the currently selected list item. -func (l *List) GetCurrentItem() int { - return l.currentItem -} - -// RemoveItem removes the item with the given index (starting at 0) from the -// list. Does nothing if the index is out of range. -func (l *List) RemoveItem(index int) *List { - if index < 0 || index >= len(l.items) { - return l - } - l.items = append(l.items[:index], l.items[index+1:]...) - if l.currentItem >= len(l.items) { - l.currentItem = len(l.items) - 1 - } - return l -} - -// SetMainTextColor sets the color of the items' main text. -func (l *List) SetMainTextColor(color tcell.Color) *List { - l.mainTextColor = color - return l -} - -// SetSecondaryTextColor sets the color of the items' secondary text. -func (l *List) SetSecondaryTextColor(color tcell.Color) *List { - l.secondaryTextColor = color - return l -} - -// SetShortcutColor sets the color of the items' shortcut. -func (l *List) SetShortcutColor(color tcell.Color) *List { - l.shortcutColor = color - return l -} - -// SetSelectedTextColor sets the text color of selected items. -func (l *List) SetSelectedTextColor(color tcell.Color) *List { - l.selectedTextColor = color - return l -} - -// SetSelectedBackgroundColor sets the background color of selected items. -func (l *List) SetSelectedBackgroundColor(color tcell.Color) *List { - l.selectedBackgroundColor = color - return l -} - -// ShowSecondaryText determines whether or not to show secondary item texts. -func (l *List) ShowSecondaryText(show bool) *List { - l.showSecondaryText = show - return l -} - -// SetChangedFunc sets the function which is called when the user navigates to -// a list item. The function receives the item's index in the list of items -// (starting with 0), its main text, secondary text, and its shortcut rune. -// -// This function is also called when the first item is added or when -// SetCurrentItem() is called. -func (l *List) SetChangedFunc(handler func(index int, mainText string, secondaryText string, shortcut rune)) *List { - l.changed = handler - return l -} - -// SetSelectedFunc sets the function which is called when the user selects a -// list item by pressing Enter on the current selection. The function receives -// the item's index in the list of items (starting with 0), its main text, -// secondary text, and its shortcut rune. -func (l *List) SetSelectedFunc(handler func(int, string, string, rune)) *List { - l.selected = handler - return l -} - -// SetDoneFunc sets a function which is called when the user presses the Escape -// key. -func (l *List) SetDoneFunc(handler func()) *List { - l.done = handler - return l -} - -// AddItem adds a new item to the list. An item has a main text which will be -// highlighted when selected. It also has a secondary text which is shown -// underneath the main text (if it is set to visible) but which may remain -// empty. -// -// The shortcut is a key binding. If the specified rune is entered, the item -// is selected immediately. Set to 0 for no binding. -// -// The "selected" callback will be invoked when the user selects the item. You -// may provide nil if no such item is needed or if all events are handled -// through the selected callback set with SetSelectedFunc(). -func (l *List) AddItem(mainText, secondaryText string, shortcut rune, selected func()) *List { - l.items = append(l.items, &listItem{ - MainText: mainText, - SecondaryText: secondaryText, - Shortcut: shortcut, - Selected: selected, - }) - if len(l.items) == 1 && l.changed != nil { - item := l.items[0] - l.changed(0, item.MainText, item.SecondaryText, item.Shortcut) - } - return l -} - -// GetItemCount returns the number of items in the list. -func (l *List) GetItemCount() int { - return len(l.items) -} - -// GetItemText returns an item's texts (main and secondary). Panics if the index -// is out of range. -func (l *List) GetItemText(index int) (main, secondary string) { - return l.items[index].MainText, l.items[index].SecondaryText -} - -// SetItemText sets an item's main and secondary text. Panics if the index is -// out of range. -func (l *List) SetItemText(index int, main, secondary string) *List { - item := l.items[index] - item.MainText = main - item.SecondaryText = secondary - return l -} - -// Clear removes all items from the list. -func (l *List) Clear() *List { - l.items = nil - l.currentItem = 0 - return l -} - -// Draw draws this primitive onto the screen. -func (l *List) Draw(screen tcell.Screen) { - l.Box.Draw(screen) - - // Determine the dimensions. - x, y, width, height := l.GetInnerRect() - bottomLimit := y + height - - // Do we show any shortcuts? - var showShortcuts bool - for _, item := range l.items { - if item.Shortcut != 0 { - showShortcuts = true - x += 4 - width -= 4 - break - } - } - - // We want to keep the current selection in view. What is our offset? - var offset int - if l.showSecondaryText { - if 2*l.currentItem >= height { - offset = (2*l.currentItem + 2 - height) / 2 - } - } else { - if l.currentItem >= height { - offset = l.currentItem + 1 - height - } - } - - // Draw the list items. - for index, item := range l.items { - if index < offset { - continue - } - - if y >= bottomLimit { - break - } - - // Shortcuts. - if showShortcuts && item.Shortcut != 0 { - Print(screen, fmt.Sprintf("(%s)", string(item.Shortcut)), x-5, y, 4, AlignRight, l.shortcutColor) - } - - // Main text. - Print(screen, item.MainText, x, y, width, AlignLeft, l.mainTextColor) - - // Background color of selected text. - if index == l.currentItem { - textWidth := StringWidth(item.MainText) - for bx := 0; bx < textWidth && bx < width; bx++ { - m, c, style, _ := screen.GetContent(x+bx, y) - fg, _, _ := style.Decompose() - if fg == l.mainTextColor { - fg = l.selectedTextColor - } - style = style.Background(l.selectedBackgroundColor).Foreground(fg) - screen.SetContent(x+bx, y, m, c, style) - } - } - - y++ - - if y >= bottomLimit { - break - } - - // Secondary text. - if l.showSecondaryText { - Print(screen, item.SecondaryText, x, y, width, AlignLeft, l.secondaryTextColor) - y++ - } - } -} - -// InputHandler returns the handler for this primitive. -func (l *List) InputHandler() func(event *tcell.EventKey, setFocus func(p Primitive)) { - return l.WrapInputHandler(func(event *tcell.EventKey, setFocus func(p Primitive)) { - previousItem := l.currentItem - - switch key := event.Key(); key { - case tcell.KeyTab, tcell.KeyDown, tcell.KeyRight: - l.currentItem++ - case tcell.KeyBacktab, tcell.KeyUp, tcell.KeyLeft: - l.currentItem-- - case tcell.KeyHome: - l.currentItem = 0 - case tcell.KeyEnd: - l.currentItem = len(l.items) - 1 - case tcell.KeyPgDn: - l.currentItem += 5 - case tcell.KeyPgUp: - l.currentItem -= 5 - case tcell.KeyEnter: - if l.currentItem >= 0 && l.currentItem < len(l.items) { - item := l.items[l.currentItem] - if item.Selected != nil { - item.Selected() - } - if l.selected != nil { - l.selected(l.currentItem, item.MainText, item.SecondaryText, item.Shortcut) - } - } - case tcell.KeyEscape: - if l.done != nil { - l.done() - } - case tcell.KeyRune: - ch := event.Rune() - if ch != ' ' { - // It's not a space bar. Is it a shortcut? - var found bool - for index, item := range l.items { - if item.Shortcut == ch { - // We have a shortcut. - found = true - l.currentItem = index - break - } - } - if !found { - break - } - } - item := l.items[l.currentItem] - if item.Selected != nil { - item.Selected() - } - if l.selected != nil { - l.selected(l.currentItem, item.MainText, item.SecondaryText, item.Shortcut) - } - } - - if l.currentItem < 0 { - l.currentItem = len(l.items) - 1 - } else if l.currentItem >= len(l.items) { - l.currentItem = 0 - } - - if l.currentItem != previousItem && l.currentItem < len(l.items) && l.changed != nil { - item := l.items[l.currentItem] - l.changed(l.currentItem, item.MainText, item.SecondaryText, item.Shortcut) - } - }) -} diff --git a/vendor/maunium.net/go/tview/modal.go b/vendor/maunium.net/go/tview/modal.go deleted file mode 100644 index f5e92f1..0000000 --- a/vendor/maunium.net/go/tview/modal.go +++ /dev/null @@ -1,146 +0,0 @@ -package tview - -import ( - "maunium.net/go/tcell" -) - -// Modal is a centered message window used to inform the user or prompt them -// for an immediate decision. It needs to have at least one button (added via -// AddButtons()) or it will never disappear. -// -// See https://github.com/rivo/tview/wiki/Modal for an example. -type Modal struct { - *Box - - // The framed embedded in the modal. - frame *Frame - - // The form embedded in the modal's frame. - form *Form - - // The message text (original, not word-wrapped). - text string - - // The text color. - textColor tcell.Color - - // The optional callback for when the user clicked one of the buttons. It - // receives the index of the clicked button and the button's label. - done func(buttonIndex int, buttonLabel string) -} - -// NewModal returns a new modal message window. -func NewModal() *Modal { - m := &Modal{ - Box: NewBox(), - textColor: Styles.PrimaryTextColor, - } - m.form = NewForm(). - SetButtonsAlign(AlignCenter). - SetButtonBackgroundColor(Styles.PrimitiveBackgroundColor). - SetButtonTextColor(Styles.PrimaryTextColor) - m.form.SetBackgroundColor(Styles.ContrastBackgroundColor).SetBorderPadding(0, 0, 0, 0) - m.form.SetCancelFunc(func() { - if m.done != nil { - m.done(-1, "") - } - }) - m.frame = NewFrame(m.form).SetBorders(0, 0, 1, 0, 0, 0) - m.frame.SetBorder(true). - SetBackgroundColor(Styles.ContrastBackgroundColor). - SetBorderPadding(1, 1, 1, 1) - m.focus = m - return m -} - -// SetTextColor sets the color of the message text. -func (m *Modal) SetTextColor(color tcell.Color) *Modal { - m.textColor = color - return m -} - -// SetDoneFunc sets a handler which is called when one of the buttons was -// pressed. It receives the index of the button as well as its label text. The -// handler is also called when the user presses the Escape key. The index will -// then be negative and the label text an emptry string. -func (m *Modal) SetDoneFunc(handler func(buttonIndex int, buttonLabel string)) *Modal { - m.done = handler - return m -} - -// SetText sets the message text of the window. The text may contain line -// breaks. Note that words are wrapped, too, based on the final size of the -// window. -func (m *Modal) SetText(text string) *Modal { - m.text = text - return m -} - -// AddButtons adds buttons to the window. There must be at least one button and -// a "done" handler so the window can be closed again. -func (m *Modal) AddButtons(labels []string) *Modal { - for index, label := range labels { - func(i int, l string) { - m.form.AddButton(label, func() { - if m.done != nil { - m.done(i, l) - } - }) - button := m.form.GetButton(m.form.GetButtonCount() - 1) - button.SetInputCapture(func(event *tcell.EventKey) *tcell.EventKey { - switch event.Key() { - case tcell.KeyDown, tcell.KeyRight: - return tcell.NewEventKey(tcell.KeyTab, 0, tcell.ModNone) - case tcell.KeyUp, tcell.KeyLeft: - return tcell.NewEventKey(tcell.KeyBacktab, 0, tcell.ModNone) - } - return event - }) - }(index, label) - } - return m -} - -// Focus is called when this primitive receives focus. -func (m *Modal) Focus(delegate func(p Primitive)) { - delegate(m.form) -} - -// HasFocus returns whether or not this primitive has focus. -func (m *Modal) HasFocus() bool { - return m.form.HasFocus() -} - -// Draw draws this primitive onto the screen. -func (m *Modal) Draw(screen tcell.Screen) { - // Calculate the width of this modal. - buttonsWidth := 0 - for _, button := range m.form.buttons { - buttonsWidth += StringWidth(button.label) + 4 + 2 - } - buttonsWidth -= 2 - screenWidth, screenHeight := screen.Size() - width := screenWidth / 3 - if width < buttonsWidth { - width = buttonsWidth - } - // width is now without the box border. - - // Reset the text and find out how wide it is. - m.frame.Clear() - lines := WordWrap(m.text, width) - for _, line := range lines { - m.frame.AddText(line, true, AlignCenter, m.textColor) - } - - // Set the modal's position and size. - height := len(lines) + 6 - width += 4 - x := (screenWidth - width) / 2 - y := (screenHeight - height) / 2 - m.SetRect(x, y, width, height) - - // Draw the frame. - m.frame.SetRect(x, y, width, height) - m.frame.Draw(screen) -} diff --git a/vendor/maunium.net/go/tview/pages.go b/vendor/maunium.net/go/tview/pages.go deleted file mode 100644 index 7442207..0000000 --- a/vendor/maunium.net/go/tview/pages.go +++ /dev/null @@ -1,257 +0,0 @@ -package tview - -import ( - "maunium.net/go/tcell" -) - -// page represents one page of a Pages object. -type page struct { - Name string // The page's name. - Item Primitive // The page's primitive. - Resize bool // Whether or not to resize the page when it is drawn. - Visible bool // Whether or not this page is visible. -} - -// Pages is a container for other primitives often used as the application's -// root primitive. It allows to easily switch the visibility of the contained -// primitives. -// -// See https://github.com/rivo/tview/wiki/Pages for an example. -type Pages struct { - *Box - - // The contained pages. - pages []*page - - // We keep a reference to the function which allows us to set the focus to - // a newly visible page. - setFocus func(p Primitive) - - // An optional handler which is called whenever the visibility or the order of - // pages changes. - changed func() -} - -// NewPages returns a new Pages object. -func NewPages() *Pages { - p := &Pages{ - Box: NewBox(), - } - p.focus = p - return p -} - -// SetChangedFunc sets a handler which is called whenever the visibility or the -// order of any visible pages changes. This can be used to redraw the pages. -func (p *Pages) SetChangedFunc(handler func()) *Pages { - p.changed = handler - return p -} - -// AddPage adds a new page with the given name and primitive. If there was -// previously a page with the same name, it is overwritten. Leaving the name -// empty may cause conflicts in other functions. -// -// Visible pages will be drawn in the order they were added (unless that order -// was changed in one of the other functions). If "resize" is set to true, the -// primitive will be set to the size available to the Pages primitive whenever -// the pages are drawn. -func (p *Pages) AddPage(name string, item Primitive, resize, visible bool) *Pages { - for index, pg := range p.pages { - if pg.Name == name { - p.pages = append(p.pages[:index], p.pages[index+1:]...) - break - } - } - p.pages = append(p.pages, &page{Item: item, Name: name, Resize: resize, Visible: visible}) - if p.changed != nil { - p.changed() - } - if p.HasFocus() { - p.Focus(p.setFocus) - } - return p -} - -// AddAndSwitchToPage calls AddPage(), then SwitchToPage() on that newly added -// page. -func (p *Pages) AddAndSwitchToPage(name string, item Primitive, resize bool) *Pages { - p.AddPage(name, item, resize, true) - p.SwitchToPage(name) - return p -} - -// RemovePage removes the page with the given name. -func (p *Pages) RemovePage(name string) *Pages { - hasFocus := p.HasFocus() - for index, page := range p.pages { - if page.Name == name { - p.pages = append(p.pages[:index], p.pages[index+1:]...) - if page.Visible && p.changed != nil { - p.changed() - } - break - } - } - if hasFocus { - p.Focus(p.setFocus) - } - return p -} - -// Clear removes all pages -func (p *Pages) Clear() *Pages { - p.pages = []*page{} - if p.changed != nil { - p.changed() - } - return p -} - -// HasPage returns true if a page with the given name exists in this object. -func (p *Pages) HasPage(name string) bool { - for _, page := range p.pages { - if page.Name == name { - return true - } - } - return false -} - -// ShowPage sets a page's visibility to "true" (in addition to any other pages -// which are already visible). -func (p *Pages) ShowPage(name string) *Pages { - for _, page := range p.pages { - if page.Name == name { - page.Visible = true - if p.changed != nil { - p.changed() - } - break - } - } - if p.HasFocus() { - p.Focus(p.setFocus) - } - return p -} - -// HidePage sets a page's visibility to "false". -func (p *Pages) HidePage(name string) *Pages { - for _, page := range p.pages { - if page.Name == name { - page.Visible = false - if p.changed != nil { - p.changed() - } - break - } - } - if p.HasFocus() { - p.Focus(p.setFocus) - } - return p -} - -// SwitchToPage sets a page's visibility to "true" and all other pages' -// visibility to "false". -func (p *Pages) SwitchToPage(name string) *Pages { - for _, page := range p.pages { - if page.Name == name { - page.Visible = true - } else { - page.Visible = false - } - } - if p.changed != nil { - p.changed() - } - if p.HasFocus() { - p.Focus(p.setFocus) - } - return p -} - -// SendToFront changes the order of the pages such that the page with the given -// name comes last, causing it to be drawn last with the next update (if -// visible). -func (p *Pages) SendToFront(name string) *Pages { - for index, page := range p.pages { - if page.Name == name { - if index < len(p.pages)-1 { - p.pages = append(append(p.pages[:index], p.pages[index+1:]...), page) - } - if page.Visible && p.changed != nil { - p.changed() - } - break - } - } - if p.HasFocus() { - p.Focus(p.setFocus) - } - return p -} - -// SendToBack changes the order of the pages such that the page with the given -// name comes first, causing it to be drawn first with the next update (if -// visible). -func (p *Pages) SendToBack(name string) *Pages { - for index, pg := range p.pages { - if pg.Name == name { - if index > 0 { - p.pages = append(append([]*page{pg}, p.pages[:index]...), p.pages[index+1:]...) - } - if pg.Visible && p.changed != nil { - p.changed() - } - break - } - } - if p.HasFocus() { - p.Focus(p.setFocus) - } - return p -} - -// HasFocus returns whether or not this primitive has focus. -func (p *Pages) HasFocus() bool { - for _, page := range p.pages { - if page.Item.GetFocusable().HasFocus() { - return true - } - } - return false -} - -// Focus is called by the application when the primitive receives focus. -func (p *Pages) Focus(delegate func(p Primitive)) { - if delegate == nil { - return // We cannot delegate so we cannot focus. - } - p.setFocus = delegate - var topItem Primitive - for _, page := range p.pages { - if page.Visible { - topItem = page.Item - } - } - if topItem != nil { - delegate(topItem) - } -} - -// Draw draws this primitive onto the screen. -func (p *Pages) Draw(screen tcell.Screen) { - p.Box.Draw(screen) - for _, page := range p.pages { - if !page.Visible { - continue - } - if page.Resize { - x, y, width, height := p.GetInnerRect() - page.Item.SetRect(x, y, width, height) - } - page.Item.Draw(screen) - } -} diff --git a/vendor/maunium.net/go/tview/primitive.go b/vendor/maunium.net/go/tview/primitive.go deleted file mode 100644 index f5034c4..0000000 --- a/vendor/maunium.net/go/tview/primitive.go +++ /dev/null @@ -1,50 +0,0 @@ -package tview - -import "maunium.net/go/tcell" - -// Primitive is the top-most interface for all graphical primitives. -type Primitive interface { - // Draw draws this primitive onto the screen. Implementers can call the - // screen's ShowCursor() function but should only do so when they have focus. - // (They will need to keep track of this themselves.) - Draw(screen tcell.Screen) - - // GetRect returns the current position of the primitive, x, y, width, and - // height. - GetRect() (int, int, int, int) - - // SetRect sets a new position of the primitive. - SetRect(x, y, width, height int) - - // InputHandler returns a handler which receives key events when it has focus. - // It is called by the Application class. - // - // A value of nil may also be returned, in which case this primitive cannot - // receive focus and will not process any key events. - // - // The handler will receive the key event and a function that allows it to - // set the focus to a different primitive, so that future key events are sent - // to that primitive. - // - // The Application's Draw() function will be called automatically after the - // handler returns. - // - // The Box class provides functionality to intercept keyboard input. If you - // subclass from Box, it is recommended that you wrap your handler using - // Box.WrapInputHandler() so you inherit that functionality. - InputHandler() func(event *tcell.EventKey, setFocus func(p Primitive)) - - MouseHandler() func(event *tcell.EventMouse, setFocus func(p Primitive)) - - PasteHandler() func(event *tcell.EventPaste) - - // Focus is called by the application when the primitive receives focus. - // Implementers may call delegate() to pass the focus on to another primitive. - Focus(delegate func(p Primitive)) - - // Blur is called by the application when the primitive loses focus. - Blur() - - // GetFocusable returns the item's Focusable. - GetFocusable() Focusable -} diff --git a/vendor/maunium.net/go/tview/semigraphics.go b/vendor/maunium.net/go/tview/semigraphics.go deleted file mode 100644 index 2455c87..0000000 --- a/vendor/maunium.net/go/tview/semigraphics.go +++ /dev/null @@ -1,296 +0,0 @@ -package tview - -import "maunium.net/go/tcell" - -// Semigraphics provides an easy way to access unicode characters for drawing. -// -// Named like the unicode characters, 'Semigraphics'-prefix used if unicode block -// isn't prefixed itself. -const ( - // Block: General Punctation U+2000-U+206F (http://unicode.org/charts/PDF/U2000.pdf) - SemigraphicsHorizontalEllipsis rune = '\u2026' // … - - // Block: Box Drawing U+2500-U+257F (http://unicode.org/charts/PDF/U2500.pdf) - BoxDrawingsLightHorizontal rune = '\u2500' // ─ - BoxDrawingsHeavyHorizontal rune = '\u2501' // ━ - BoxDrawingsLightVertical rune = '\u2502' // │ - BoxDrawingsHeavyVertical rune = '\u2503' // ┃ - BoxDrawingsLightTripleDashHorizontal rune = '\u2504' // ┄ - BoxDrawingsHeavyTripleDashHorizontal rune = '\u2505' // ┅ - BoxDrawingsLightTripleDashVertical rune = '\u2506' // ┆ - BoxDrawingsHeavyTripleDashVertical rune = '\u2507' // ┇ - BoxDrawingsLightQuadrupleDashHorizontal rune = '\u2508' // ┈ - BoxDrawingsHeavyQuadrupleDashHorizontal rune = '\u2509' // ┉ - BoxDrawingsLightQuadrupleDashVertical rune = '\u250a' // ┊ - BoxDrawingsHeavyQuadrupleDashVertical rune = '\u250b' // ┋ - BoxDrawingsLightDownAndRight rune = '\u250c' // ┌ - BoxDrawingsDownLighAndRightHeavy rune = '\u250d' // ┍ - BoxDrawingsDownHeavyAndRightLight rune = '\u250e' // ┎ - BoxDrawingsHeavyDownAndRight rune = '\u250f' // ┏ - BoxDrawingsLightDownAndLeft rune = '\u2510' // ┐ - BoxDrawingsDownLighAndLeftHeavy rune = '\u2511' // ┑ - BoxDrawingsDownHeavyAndLeftLight rune = '\u2512' // ┒ - BoxDrawingsHeavyDownAndLeft rune = '\u2513' // ┓ - BoxDrawingsLightUpAndRight rune = '\u2514' // └ - BoxDrawingsUpLightAndRightHeavy rune = '\u2515' // ┕ - BoxDrawingsUpHeavyAndRightLight rune = '\u2516' // ┖ - BoxDrawingsHeavyUpAndRight rune = '\u2517' // ┗ - BoxDrawingsLightUpAndLeft rune = '\u2518' // ┘ - BoxDrawingsUpLightAndLeftHeavy rune = '\u2519' // ┙ - BoxDrawingsUpHeavyAndLeftLight rune = '\u251a' // ┚ - BoxDrawingsHeavyUpAndLeft rune = '\u251b' // ┛ - BoxDrawingsLightVerticalAndRight rune = '\u251c' // ├ - BoxDrawingsVerticalLightAndRightHeavy rune = '\u251d' // ┝ - BoxDrawingsUpHeavyAndRightDownLight rune = '\u251e' // ┞ - BoxDrawingsDownHeacyAndRightUpLight rune = '\u251f' // ┟ - BoxDrawingsVerticalHeavyAndRightLight rune = '\u2520' // ┠ - BoxDrawingsDownLightAnbdRightUpHeavy rune = '\u2521' // ┡ - BoxDrawingsUpLightAndRightDownHeavy rune = '\u2522' // ┢ - BoxDrawingsHeavyVerticalAndRight rune = '\u2523' // ┣ - BoxDrawingsLightVerticalAndLeft rune = '\u2524' // ┤ - BoxDrawingsVerticalLightAndLeftHeavy rune = '\u2525' // ┥ - BoxDrawingsUpHeavyAndLeftDownLight rune = '\u2526' // ┦ - BoxDrawingsDownHeavyAndLeftUpLight rune = '\u2527' // ┧ - BoxDrawingsVerticalheavyAndLeftLight rune = '\u2528' // ┨ - BoxDrawingsDownLightAndLeftUpHeavy rune = '\u2529' // ┨ - BoxDrawingsUpLightAndLeftDownHeavy rune = '\u252a' // ┪ - BoxDrawingsHeavyVerticalAndLeft rune = '\u252b' // ┫ - BoxDrawingsLightDownAndHorizontal rune = '\u252c' // ┬ - BoxDrawingsLeftHeavyAndRightDownLight rune = '\u252d' // ┭ - BoxDrawingsRightHeavyAndLeftDownLight rune = '\u252e' // ┮ - BoxDrawingsDownLightAndHorizontalHeavy rune = '\u252f' // ┯ - BoxDrawingsDownHeavyAndHorizontalLight rune = '\u2530' // ┰ - BoxDrawingsRightLightAndLeftDownHeavy rune = '\u2531' // ┱ - BoxDrawingsLeftLightAndRightDownHeavy rune = '\u2532' // ┲ - BoxDrawingsHeavyDownAndHorizontal rune = '\u2533' // ┳ - BoxDrawingsLightUpAndHorizontal rune = '\u2534' // ┴ - BoxDrawingsLeftHeavyAndRightUpLight rune = '\u2535' // ┵ - BoxDrawingsRightHeavyAndLeftUpLight rune = '\u2536' // ┶ - BoxDrawingsUpLightAndHorizontalHeavy rune = '\u2537' // ┷ - BoxDrawingsUpHeavyAndHorizontalLight rune = '\u2538' // ┸ - BoxDrawingsRightLightAndLeftUpHeavy rune = '\u2539' // ┹ - BoxDrawingsLeftLightAndRightUpHeavy rune = '\u253a' // ┺ - BoxDrawingsHeavyUpAndHorizontal rune = '\u253b' // ┻ - BoxDrawingsLightVerticalAndHorizontal rune = '\u253c' // ┼ - BoxDrawingsLeftHeavyAndRightVerticalLight rune = '\u253d' // ┽ - BoxDrawingsRightHeavyAndLeftVerticalLight rune = '\u253e' // ┾ - BoxDrawingsVerticalLightAndHorizontalHeavy rune = '\u253f' // ┿ - BoxDrawingsUpHeavyAndDownHorizontalLight rune = '\u2540' // ╀ - BoxDrawingsDownHeavyAndUpHorizontalLight rune = '\u2541' // ╁ - BoxDrawingsVerticalHeavyAndHorizontalLight rune = '\u2542' // ╂ - BoxDrawingsLeftUpHeavyAndRightDownLight rune = '\u2543' // ╃ - BoxDrawingsRightUpHeavyAndLeftDownLight rune = '\u2544' // ╄ - BoxDrawingsLeftDownHeavyAndRightUpLight rune = '\u2545' // ╅ - BoxDrawingsRightDownHeavyAndLeftUpLight rune = '\u2546' // ╆ - BoxDrawingsDownLightAndUpHorizontalHeavy rune = '\u2547' // ╇ - BoxDrawingsUpLightAndDownHorizontalHeavy rune = '\u2548' // ╈ - BoxDrawingsRightLightAndLeftVerticalHeavy rune = '\u2549' // ╉ - BoxDrawingsLeftLightAndRightVerticalHeavy rune = '\u254a' // ╊ - BoxDrawingsHeavyVerticalAndHorizontal rune = '\u254b' // ╋ - BoxDrawingsLightDoubleDashHorizontal rune = '\u254c' // ╌ - BoxDrawingsHeavyDoubleDashHorizontal rune = '\u254d' // ╍ - BoxDrawingsLightDoubleDashVertical rune = '\u254e' // ╎ - BoxDrawingsHeavyDoubleDashVertical rune = '\u254f' // ╏ - BoxDrawingsDoubleHorizontal rune = '\u2550' // ═ - BoxDrawingsDoubleVertical rune = '\u2551' // ║ - BoxDrawingsDownSingleAndRightDouble rune = '\u2552' // ╒ - BoxDrawingsDownDoubleAndRightSingle rune = '\u2553' // ╓ - BoxDrawingsDoubleDownAndRight rune = '\u2554' // ╔ - BoxDrawingsDownSingleAndLeftDouble rune = '\u2555' // ╕ - BoxDrawingsDownDoubleAndLeftSingle rune = '\u2556' // ╖ - BoxDrawingsDoubleDownAndLeft rune = '\u2557' // ╗ - BoxDrawingsUpSingleAndRightDouble rune = '\u2558' // ╘ - BoxDrawingsUpDoubleAndRightSingle rune = '\u2559' // ╙ - BoxDrawingsDoubleUpAndRight rune = '\u255a' // ╚ - BoxDrawingsUpSingleAndLeftDouble rune = '\u255b' // ╛ - BoxDrawingsUpDobuleAndLeftSingle rune = '\u255c' // ╜ - BoxDrawingsDoubleUpAndLeft rune = '\u255d' // ╝ - BoxDrawingsVerticalSingleAndRightDouble rune = '\u255e' // ╞ - BoxDrawingsVerticalDoubleAndRightSingle rune = '\u255f' // ╟ - BoxDrawingsDoubleVerticalAndRight rune = '\u2560' // ╠ - BoxDrawingsVerticalSingleAndLeftDouble rune = '\u2561' // ╡ - BoxDrawingsVerticalDoubleAndLeftSingle rune = '\u2562' // ╢ - BoxDrawingsDoubleVerticalAndLeft rune = '\u2563' // ╣ - BoxDrawingsDownSingleAndHorizontalDouble rune = '\u2564' // ╤ - BoxDrawingsDownDoubleAndHorizontalSingle rune = '\u2565' // ╥ - BoxDrawingsDoubleDownAndHorizontal rune = '\u2566' // ╦ - BoxDrawingsUpSingleAndHorizontalDouble rune = '\u2567' // ╧ - BoxDrawingsUpDoubleAndHorizontalSingle rune = '\u2568' // ╨ - BoxDrawingsDoubleUpAndHorizontal rune = '\u2569' // ╩ - BoxDrawingsVerticalSingleAndHorizontalDouble rune = '\u256a' // ╪ - BoxDrawingsVerticalDoubleAndHorizontalSingle rune = '\u256b' // ╫ - BoxDrawingsDoubleVerticalAndHorizontal rune = '\u256c' // ╬ - BoxDrawingsLightArcDownAndRight rune = '\u256d' // ╭ - BoxDrawingsLightArcDownAndLeft rune = '\u256e' // ╮ - BoxDrawingsLightArcUpAndLeft rune = '\u256f' // ╯ - BoxDrawingsLightArcUpAndRight rune = '\u2570' // ╰ - BoxDrawingsLightDiagonalUpperRightToLowerLeft rune = '\u2571' // ╱ - BoxDrawingsLightDiagonalUpperLeftToLowerRight rune = '\u2572' // ╲ - BoxDrawingsLightDiagonalCross rune = '\u2573' // ╳ - BoxDrawingsLightLeft rune = '\u2574' // ╴ - BoxDrawingsLightUp rune = '\u2575' // ╵ - BoxDrawingsLightRight rune = '\u2576' // ╶ - BoxDrawingsLightDown rune = '\u2577' // ╷ - BoxDrawingsHeavyLeft rune = '\u2578' // ╸ - BoxDrawingsHeavyUp rune = '\u2579' // ╹ - BoxDrawingsHeavyRight rune = '\u257a' // ╺ - BoxDrawingsHeavyDown rune = '\u257b' // ╻ - BoxDrawingsLightLeftAndHeavyRight rune = '\u257c' // ╼ - BoxDrawingsLightUpAndHeavyDown rune = '\u257d' // ╽ - BoxDrawingsHeavyLeftAndLightRight rune = '\u257e' // ╾ - BoxDrawingsHeavyUpAndLightDown rune = '\u257f' // ╿ -) - -// SemigraphicJoints is a map for joining semigraphic (or otherwise) runes. -// So far only light lines are supported but if you want to change the border -// styling you need to provide the joints, too. -// The matching will be sorted ascending by rune value, so you don't need to -// provide all rune combinations, -// e.g. (─) + (│) = (┼) will also match (│) + (─) = (┼) -var SemigraphicJoints = map[string]rune{ - // (─) + (│) = (┼) - string([]rune{BoxDrawingsLightHorizontal, BoxDrawingsLightVertical}): BoxDrawingsLightVerticalAndHorizontal, - // (─) + (┌) = (┬) - string([]rune{BoxDrawingsLightHorizontal, BoxDrawingsLightDownAndRight}): BoxDrawingsLightDownAndHorizontal, - // (─) + (┐) = (┬) - string([]rune{BoxDrawingsLightHorizontal, BoxDrawingsLightDownAndLeft}): BoxDrawingsLightDownAndHorizontal, - // (─) + (└) = (┴) - string([]rune{BoxDrawingsLightHorizontal, BoxDrawingsLightUpAndRight}): BoxDrawingsLightUpAndHorizontal, - // (─) + (┘) = (┴) - string([]rune{BoxDrawingsLightHorizontal, BoxDrawingsLightUpAndLeft}): BoxDrawingsLightUpAndHorizontal, - // (─) + (├) = (┼) - string([]rune{BoxDrawingsLightHorizontal, BoxDrawingsLightVerticalAndRight}): BoxDrawingsLightVerticalAndHorizontal, - // (─) + (┤) = (┼) - string([]rune{BoxDrawingsLightHorizontal, BoxDrawingsLightVerticalAndLeft}): BoxDrawingsLightVerticalAndHorizontal, - // (─) + (┬) = (┬) - string([]rune{BoxDrawingsLightHorizontal, BoxDrawingsLightDownAndHorizontal}): BoxDrawingsLightDownAndHorizontal, - // (─) + (┴) = (┴) - string([]rune{BoxDrawingsLightHorizontal, BoxDrawingsLightUpAndHorizontal}): BoxDrawingsLightUpAndHorizontal, - // (─) + (┼) = (┼) - string([]rune{BoxDrawingsLightHorizontal, BoxDrawingsLightVerticalAndHorizontal}): BoxDrawingsLightVerticalAndHorizontal, - - // (│) + (┌) = (├) - string([]rune{BoxDrawingsLightVertical, BoxDrawingsLightDownAndRight}): BoxDrawingsLightVerticalAndRight, - // (│) + (┐) = (┤) - string([]rune{BoxDrawingsLightVertical, BoxDrawingsLightDownAndLeft}): BoxDrawingsLightVerticalAndLeft, - // (│) + (└) = (├) - string([]rune{BoxDrawingsLightVertical, BoxDrawingsLightUpAndRight}): BoxDrawingsLightVerticalAndRight, - // (│) + (┘) = (┤) - string([]rune{BoxDrawingsLightVertical, BoxDrawingsLightUpAndLeft}): BoxDrawingsLightVerticalAndLeft, - // (│) + (├) = (├) - string([]rune{BoxDrawingsLightVertical, BoxDrawingsLightVerticalAndRight}): BoxDrawingsLightVerticalAndRight, - // (│) + (┤) = (┤) - string([]rune{BoxDrawingsLightVertical, BoxDrawingsLightVerticalAndLeft}): BoxDrawingsLightVerticalAndLeft, - // (│) + (┬) = (┼) - string([]rune{BoxDrawingsLightVertical, BoxDrawingsLightDownAndHorizontal}): BoxDrawingsLightVerticalAndHorizontal, - // (│) + (┴) = (┼) - string([]rune{BoxDrawingsLightVertical, BoxDrawingsLightUpAndHorizontal}): BoxDrawingsLightVerticalAndHorizontal, - // (│) + (┼) = (┼) - string([]rune{BoxDrawingsLightVertical, BoxDrawingsLightVerticalAndHorizontal}): BoxDrawingsLightVerticalAndHorizontal, - - // (┌) + (┐) = (┬) - string([]rune{BoxDrawingsLightDownAndRight, BoxDrawingsLightDownAndLeft}): BoxDrawingsLightDownAndHorizontal, - // (┌) + (└) = (├) - string([]rune{BoxDrawingsLightDownAndRight, BoxDrawingsLightUpAndRight}): BoxDrawingsLightVerticalAndRight, - // (┌) + (┘) = (┼) - string([]rune{BoxDrawingsLightDownAndRight, BoxDrawingsLightUpAndLeft}): BoxDrawingsLightVerticalAndHorizontal, - // (┌) + (├) = (├) - string([]rune{BoxDrawingsLightDownAndRight, BoxDrawingsLightVerticalAndRight}): BoxDrawingsLightVerticalAndRight, - // (┌) + (┤) = (┼) - string([]rune{BoxDrawingsLightDownAndRight, BoxDrawingsLightVerticalAndLeft}): BoxDrawingsLightVerticalAndHorizontal, - // (┌) + (┬) = (┬) - string([]rune{BoxDrawingsLightDownAndRight, BoxDrawingsLightDownAndHorizontal}): BoxDrawingsLightDownAndHorizontal, - // (┌) + (┴) = (┼) - string([]rune{BoxDrawingsLightDownAndRight, BoxDrawingsLightUpAndHorizontal}): BoxDrawingsLightVerticalAndHorizontal, - // (┌) + (┴) = (┼) - string([]rune{BoxDrawingsLightDownAndRight, BoxDrawingsLightVerticalAndHorizontal}): BoxDrawingsLightVerticalAndHorizontal, - - // (┐) + (└) = (┼) - string([]rune{BoxDrawingsLightDownAndLeft, BoxDrawingsLightUpAndRight}): BoxDrawingsLightVerticalAndHorizontal, - // (┐) + (┘) = (┤) - string([]rune{BoxDrawingsLightDownAndLeft, BoxDrawingsLightUpAndLeft}): BoxDrawingsLightVerticalAndLeft, - // (┐) + (├) = (┼) - string([]rune{BoxDrawingsLightDownAndLeft, BoxDrawingsLightVerticalAndRight}): BoxDrawingsLightVerticalAndHorizontal, - // (┐) + (┤) = (┤) - string([]rune{BoxDrawingsLightDownAndLeft, BoxDrawingsLightVerticalAndLeft}): BoxDrawingsLightVerticalAndLeft, - // (┐) + (┬) = (┬) - string([]rune{BoxDrawingsLightDownAndLeft, BoxDrawingsLightDownAndHorizontal}): BoxDrawingsLightDownAndHorizontal, - // (┐) + (┴) = (┼) - string([]rune{BoxDrawingsLightDownAndLeft, BoxDrawingsLightUpAndHorizontal}): BoxDrawingsLightVerticalAndHorizontal, - // (┐) + (┼) = (┼) - string([]rune{BoxDrawingsLightDownAndLeft, BoxDrawingsLightVerticalAndHorizontal}): BoxDrawingsLightVerticalAndHorizontal, - - // (└) + (┘) = (┴) - string([]rune{BoxDrawingsLightUpAndRight, BoxDrawingsLightUpAndLeft}): BoxDrawingsLightUpAndHorizontal, - // (└) + (├) = (├) - string([]rune{BoxDrawingsLightUpAndRight, BoxDrawingsLightVerticalAndRight}): BoxDrawingsLightVerticalAndRight, - // (└) + (┤) = (┼) - string([]rune{BoxDrawingsLightUpAndRight, BoxDrawingsLightVerticalAndLeft}): BoxDrawingsLightVerticalAndHorizontal, - // (└) + (┬) = (┼) - string([]rune{BoxDrawingsLightUpAndRight, BoxDrawingsLightDownAndHorizontal}): BoxDrawingsLightVerticalAndHorizontal, - // (└) + (┴) = (┴) - string([]rune{BoxDrawingsLightUpAndRight, BoxDrawingsLightUpAndHorizontal}): BoxDrawingsLightUpAndHorizontal, - // (└) + (┼) = (┼) - string([]rune{BoxDrawingsLightUpAndRight, BoxDrawingsLightVerticalAndHorizontal}): BoxDrawingsLightVerticalAndHorizontal, - - // (┘) + (├) = (┼) - string([]rune{BoxDrawingsLightUpAndLeft, BoxDrawingsLightVerticalAndRight}): BoxDrawingsLightVerticalAndHorizontal, - // (┘) + (┤) = (┤) - string([]rune{BoxDrawingsLightUpAndLeft, BoxDrawingsLightVerticalAndLeft}): BoxDrawingsLightVerticalAndLeft, - // (┘) + (┬) = (┼) - string([]rune{BoxDrawingsLightUpAndLeft, BoxDrawingsLightDownAndHorizontal}): BoxDrawingsLightVerticalAndHorizontal, - // (┘) + (┴) = (┴) - string([]rune{BoxDrawingsLightUpAndLeft, BoxDrawingsLightUpAndHorizontal}): BoxDrawingsLightUpAndHorizontal, - // (┘) + (┼) = (┼) - string([]rune{BoxDrawingsLightUpAndLeft, BoxDrawingsLightVerticalAndHorizontal}): BoxDrawingsLightVerticalAndHorizontal, - - // (├) + (┤) = (┼) - string([]rune{BoxDrawingsLightVerticalAndRight, BoxDrawingsLightVerticalAndLeft}): BoxDrawingsLightVerticalAndHorizontal, - // (├) + (┬) = (┼) - string([]rune{BoxDrawingsLightVerticalAndRight, BoxDrawingsLightDownAndHorizontal}): BoxDrawingsLightVerticalAndHorizontal, - // (├) + (┴) = (┼) - string([]rune{BoxDrawingsLightVerticalAndRight, BoxDrawingsLightUpAndHorizontal}): BoxDrawingsLightVerticalAndHorizontal, - // (├) + (┼) = (┼) - string([]rune{BoxDrawingsLightVerticalAndRight, BoxDrawingsLightVerticalAndHorizontal}): BoxDrawingsLightVerticalAndHorizontal, - - // (┤) + (┬) = (┼) - string([]rune{BoxDrawingsLightVerticalAndLeft, BoxDrawingsLightDownAndHorizontal}): BoxDrawingsLightVerticalAndHorizontal, - // (┤) + (┴) = (┼) - string([]rune{BoxDrawingsLightVerticalAndLeft, BoxDrawingsLightUpAndHorizontal}): BoxDrawingsLightVerticalAndHorizontal, - // (┤) + (┼) = (┼) - string([]rune{BoxDrawingsLightVerticalAndLeft, BoxDrawingsLightVerticalAndHorizontal}): BoxDrawingsLightVerticalAndHorizontal, - - // (┬) + (┴) = (┼) - string([]rune{BoxDrawingsLightDownAndHorizontal, BoxDrawingsLightUpAndHorizontal}): BoxDrawingsLightVerticalAndHorizontal, - // (┬) + (┼) = (┼) - string([]rune{BoxDrawingsLightDownAndHorizontal, BoxDrawingsLightVerticalAndHorizontal}): BoxDrawingsLightVerticalAndHorizontal, - - // (┴) + (┼) = (┼) - string([]rune{BoxDrawingsLightUpAndHorizontal, BoxDrawingsLightVerticalAndHorizontal}): BoxDrawingsLightVerticalAndHorizontal, -} - -// PrintJoinedSemigraphics prints a semigraphics rune into the screen at the given -// position with the given color, joining it with any existing semigraphics -// rune. Background colors are preserved. At this point, only regular single -// line borders are supported. -func PrintJoinedSemigraphics(screen tcell.Screen, x, y int, ch rune, color tcell.Color) { - previous, _, style, _ := screen.GetContent(x, y) - style = style.Foreground(color) - - // What's the resulting rune? - var result rune - if ch == previous { - result = ch - } else { - if ch < previous { - previous, ch = ch, previous - } - result = SemigraphicJoints[string([]rune{previous, ch})] - } - if result == 0 { - result = ch - } - - // We only print something if we have something. - screen.SetContent(x, y, result, nil, style) -} diff --git a/vendor/maunium.net/go/tview/styles.go b/vendor/maunium.net/go/tview/styles.go deleted file mode 100644 index 8c3e0d7..0000000 --- a/vendor/maunium.net/go/tview/styles.go +++ /dev/null @@ -1,34 +0,0 @@ -package tview - -import "maunium.net/go/tcell" - -// Styles defines various colors used when primitives are initialized. These -// may be changed to accommodate a different look and feel. -// -// The default is for applications with a black background and basic colors: -// black, white, yellow, green, and blue. -var Styles = struct { - PrimitiveBackgroundColor tcell.Color // Main background color for primitives. - ContrastBackgroundColor tcell.Color // Background color for contrasting elements. - MoreContrastBackgroundColor tcell.Color // Background color for even more contrasting elements. - BorderColor tcell.Color // Box borders. - TitleColor tcell.Color // Box titles. - GraphicsColor tcell.Color // Graphics. - PrimaryTextColor tcell.Color // Primary text. - SecondaryTextColor tcell.Color // Secondary text (e.g. labels). - TertiaryTextColor tcell.Color // Tertiary text (e.g. subtitles, notes). - InverseTextColor tcell.Color // Text on primary-colored backgrounds. - ContrastSecondaryTextColor tcell.Color // Secondary text on ContrastBackgroundColor-colored backgrounds. -}{ - PrimitiveBackgroundColor: tcell.ColorBlack, - ContrastBackgroundColor: tcell.ColorBlue, - MoreContrastBackgroundColor: tcell.ColorGreen, - BorderColor: tcell.ColorWhite, - TitleColor: tcell.ColorWhite, - GraphicsColor: tcell.ColorWhite, - PrimaryTextColor: tcell.ColorWhite, - SecondaryTextColor: tcell.ColorYellow, - TertiaryTextColor: tcell.ColorGreen, - InverseTextColor: tcell.ColorBlue, - ContrastSecondaryTextColor: tcell.ColorDarkCyan, -} diff --git a/vendor/maunium.net/go/tview/table.go b/vendor/maunium.net/go/tview/table.go deleted file mode 100644 index 6c636e7..0000000 --- a/vendor/maunium.net/go/tview/table.go +++ /dev/null @@ -1,1096 +0,0 @@ -package tview - -import ( - "sort" - - "maunium.net/go/tcell" - colorful "github.com/lucasb-eyer/go-colorful" -) - -// TableCell represents one cell inside a Table. You can instantiate this type -// directly but all colors (background and text) will be set to their default -// which is black. -type TableCell struct { - // The text to be displayed in the table cell. - Text string - - // The alignment of the cell text. One of AlignLeft (default), AlignCenter, - // or AlignRight. - Align int - - // The maximum width of the cell in screen space. This is used to give a - // column a maximum width. Any cell text whose screen width exceeds this width - // is cut off. Set to 0 if there is no maximum width. - MaxWidth int - - // If the total table width is less than the available width, this value is - // used to add extra width to a column. See SetExpansion() for details. - Expansion int - - // The color of the cell text. - Color tcell.Color - - // The background color of the cell. - BackgroundColor tcell.Color - - // The style attributes of the cell. - Attributes tcell.AttrMask - - // If set to true, this cell cannot be selected. - NotSelectable bool - - // The position and width of the cell the last time table was drawn. - x, y, width int -} - -// NewTableCell returns a new table cell with sensible defaults. That is, left -// aligned text with the primary text color (see Styles) and a transparent -// background (using the background of the Table). -func NewTableCell(text string) *TableCell { - return &TableCell{ - Text: text, - Align: AlignLeft, - Color: Styles.PrimaryTextColor, - BackgroundColor: tcell.ColorDefault, - } -} - -// SetText sets the cell's text. -func (c *TableCell) SetText(text string) *TableCell { - c.Text = text - return c -} - -// SetAlign sets the cell's text alignment, one of AlignLeft, AlignCenter, or -// AlignRight. -func (c *TableCell) SetAlign(align int) *TableCell { - c.Align = align - return c -} - -// SetMaxWidth sets maximum width of the cell in screen space. This is used to -// give a column a maximum width. Any cell text whose screen width exceeds this -// width is cut off. Set to 0 if there is no maximum width. -func (c *TableCell) SetMaxWidth(maxWidth int) *TableCell { - c.MaxWidth = maxWidth - return c -} - -// SetExpansion sets the value by which the column of this cell expands if the -// available width for the table is more than the table width (prior to applying -// this expansion value). This is a proportional value. The amount of unused -// horizontal space is divided into widths to be added to each column. How much -// extra width a column receives depends on the expansion value: A value of 0 -// (the default) will not cause the column to increase in width. Other values -// are proportional, e.g. a value of 2 will cause a column to grow by twice -// the amount of a column with a value of 1. -// -// Since this value affects an entire column, the maximum over all visible cells -// in that column is used. -// -// This function panics if a negative value is provided. -func (c *TableCell) SetExpansion(expansion int) *TableCell { - if expansion < 0 { - panic("Table cell expansion values may not be negative") - } - c.Expansion = expansion - return c -} - -// SetTextColor sets the cell's text color. -func (c *TableCell) SetTextColor(color tcell.Color) *TableCell { - c.Color = color - return c -} - -// SetBackgroundColor sets the cell's background color. Set to -// tcell.ColorDefault to use the table's background color. -func (c *TableCell) SetBackgroundColor(color tcell.Color) *TableCell { - c.BackgroundColor = color - return c -} - -// SetAttributes sets the cell's text attributes. You can combine different -// attributes using bitmask operations: -// -// cell.SetAttributes(tcell.AttrUnderline | tcell.AttrBold) -func (c *TableCell) SetAttributes(attr tcell.AttrMask) *TableCell { - c.Attributes = attr - return c -} - -// SetStyle sets the cell's style (foreground color, background color, and -// attributes) all at once. -func (c *TableCell) SetStyle(style tcell.Style) *TableCell { - c.Color, c.BackgroundColor, c.Attributes = style.Decompose() - return c -} - -// SetSelectable sets whether or not this cell can be selected by the user. -func (c *TableCell) SetSelectable(selectable bool) *TableCell { - c.NotSelectable = !selectable - return c -} - -// GetLastPosition returns the position of the table cell the last time it was -// drawn on screen. If the cell is not on screen, the return values are -// undefined. -// -// Because the Table class will attempt to keep selected cells on screen, this -// function is most useful in response to a "selected" event (see -// SetSelectedFunc()) or a "selectionChanged" event (see -// SetSelectionChangedFunc()). -func (c *TableCell) GetLastPosition() (x, y, width int) { - return c.x, c.y, c.width -} - -// Table visualizes two-dimensional data consisting of rows and columns. Each -// Table cell is defined via SetCell() by the TableCell type. They can be added -// dynamically to the table and changed any time. -// -// The most compact display of a table is without borders. Each row will then -// occupy one row on screen and columns are separated by the rune defined via -// SetSeparator() (a space character by default). -// -// When borders are turned on (via SetBorders()), each table cell is surrounded -// by lines. Therefore one table row will require two rows on screen. -// -// Columns will use as much horizontal space as they need. You can constrain -// their size with the MaxWidth parameter of the TableCell type. -// -// Fixed Columns -// -// You can define fixed rows and rolumns via SetFixed(). They will always stay -// in their place, even when the table is scrolled. Fixed rows are always the -// top rows. Fixed columns are always the leftmost columns. -// -// Selections -// -// You can call SetSelectable() to set columns and/or rows to "selectable". If -// the flag is set only for columns, entire columns can be selected by the user. -// If it is set only for rows, entire rows can be selected. If both flags are -// set, individual cells can be selected. The "selected" handler set via -// SetSelectedFunc() is invoked when the user presses Enter on a selection. -// -// Navigation -// -// If the table extends beyond the available space, it can be navigated with -// key bindings similar to Vim: -// -// - h, left arrow: Move left by one column. -// - l, right arrow: Move right by one column. -// - j, down arrow: Move down by one row. -// - k, up arrow: Move up by one row. -// - g, home: Move to the top. -// - G, end: Move to the bottom. -// - Ctrl-F, page down: Move down by one page. -// - Ctrl-B, page up: Move up by one page. -// -// When there is no selection, this affects the entire table (except for fixed -// rows and columns). When there is a selection, the user moves the selection. -// The class will attempt to keep the selection from moving out of the screen. -// -// Use SetInputCapture() to override or modify keyboard input. -// -// See https://github.com/rivo/tview/wiki/Table for an example. -type Table struct { - *Box - - // Whether or not this table has borders around each cell. - borders bool - - // The color of the borders or the separator. - bordersColor tcell.Color - - // If there are no borders, the column separator. - separator rune - - // The cells of the table. Rows first, then columns. - cells [][]*TableCell - - // The rightmost column in the data set. - lastColumn int - - // The number of fixed rows / columns. - fixedRows, fixedColumns int - - // Whether or not rows or columns can be selected. If both are set to true, - // cells can be selected. - rowsSelectable, columnsSelectable bool - - // The currently selected row and column. - selectedRow, selectedColumn int - - // The number of rows/columns by which the table is scrolled down/to the - // right. - rowOffset, columnOffset int - - // If set to true, the table's last row will always be visible. - trackEnd bool - - // The number of visible rows the last time the table was drawn. - visibleRows int - - // The style of the selected rows. If this value is 0, selected rows are - // simply inverted. - selectedStyle tcell.Style - - // An optional function which gets called when the user presses Enter on a - // selected cell. If entire rows selected, the column value is undefined. - // Likewise for entire columns. - selected func(row, column int) - - // An optional function which gets called when the user changes the selection. - // If entire rows selected, the column value is undefined. - // Likewise for entire columns. - selectionChanged func(row, column int) - - // An optional function which gets called when the user presses Escape, Tab, - // or Backtab. Also when the user presses Enter if nothing is selectable. - done func(key tcell.Key) -} - -// NewTable returns a new table. -func NewTable() *Table { - return &Table{ - Box: NewBox(), - bordersColor: Styles.GraphicsColor, - separator: ' ', - lastColumn: -1, - } -} - -// Clear removes all table data. -func (t *Table) Clear() *Table { - t.cells = nil - t.lastColumn = -1 - return t -} - -// SetBorders sets whether or not each cell in the table is surrounded by a -// border. -func (t *Table) SetBorders(show bool) *Table { - t.borders = show - return t -} - -// SetBordersColor sets the color of the cell borders. -func (t *Table) SetBordersColor(color tcell.Color) *Table { - t.bordersColor = color - return t -} - -// SetSelectedStyle sets a specific style for selected cells. If no such style -// is set, per default, selected cells are inverted (i.e. their foreground and -// background colors are swapped). -// -// To reset a previous setting to its default, make the following call: -// -// table.SetSelectedStyle(tcell.ColorDefault, tcell.ColorDefault, 0) -func (t *Table) SetSelectedStyle(foregroundColor, backgroundColor tcell.Color, attributes tcell.AttrMask) *Table { - t.selectedStyle = tcell.StyleDefault.Foreground(foregroundColor).Background(backgroundColor) | tcell.Style(attributes) - return t -} - -// SetSeparator sets the character used to fill the space between two -// neighboring cells. This is a space character ' ' per default but you may -// want to set it to Borders.Vertical (or any other rune) if the column -// separation should be more visible. If cell borders are activated, this is -// ignored. -// -// Separators have the same color as borders. -func (t *Table) SetSeparator(separator rune) *Table { - t.separator = separator - return t -} - -// SetFixed sets the number of fixed rows and columns which are always visible -// even when the rest of the cells are scrolled out of view. Rows are always the -// top-most ones. Columns are always the left-most ones. -func (t *Table) SetFixed(rows, columns int) *Table { - t.fixedRows, t.fixedColumns = rows, columns - return t -} - -// SetSelectable sets the flags which determine what can be selected in a table. -// There are three selection modi: -// -// - rows = false, columns = false: Nothing can be selected. -// - rows = true, columns = false: Rows can be selected. -// - rows = false, columns = true: Columns can be selected. -// - rows = true, columns = true: Individual cells can be selected. -func (t *Table) SetSelectable(rows, columns bool) *Table { - t.rowsSelectable, t.columnsSelectable = rows, columns - return t -} - -// GetSelectable returns what can be selected in a table. Refer to -// SetSelectable() for details. -func (t *Table) GetSelectable() (rows, columns bool) { - return t.rowsSelectable, t.columnsSelectable -} - -// GetSelection returns the position of the current selection. -// If entire rows are selected, the column index is undefined. -// Likewise for entire columns. -func (t *Table) GetSelection() (row, column int) { - return t.selectedRow, t.selectedColumn -} - -// Select sets the selected cell. Depending on the selection settings -// specified via SetSelectable(), this may be an entire row or column, or even -// ignored completely. -func (t *Table) Select(row, column int) *Table { - t.selectedRow, t.selectedColumn = row, column - return t -} - -// SetOffset sets how many rows and columns should be skipped when drawing the -// table. This is useful for large tables that do not fit on the screen. -// Navigating a selection can change these values. -// -// Fixed rows and columns are never skipped. -func (t *Table) SetOffset(row, column int) *Table { - t.rowOffset, t.columnOffset = row, column - return t -} - -// GetOffset returns the current row and column offset. This indicates how many -// rows and columns the table is scrolled down and to the right. -func (t *Table) GetOffset() (row, column int) { - return t.rowOffset, t.columnOffset -} - -// SetSelectedFunc sets a handler which is called whenever the user presses the -// Enter key on a selected cell/row/column. The handler receives the position of -// the selection and its cell contents. If entire rows are selected, the column -// index is undefined. Likewise for entire columns. -func (t *Table) SetSelectedFunc(handler func(row, column int)) *Table { - t.selected = handler - return t -} - -// SetSelectionChangedFunc sets a handler which is called whenever the user -// navigates to a new selection. The handler receives the position of the new -// selection. If entire rows are selected, the column index is undefined. -// Likewise for entire columns. -func (t *Table) SetSelectionChangedFunc(handler func(row, column int)) *Table { - t.selectionChanged = handler - return t -} - -// SetDoneFunc sets a handler which is called whenever the user presses the -// Escape, Tab, or Backtab key. If nothing is selected, it is also called when -// user presses the Enter key (because pressing Enter on a selection triggers -// the "selected" handler set via SetSelectedFunc()). -func (t *Table) SetDoneFunc(handler func(key tcell.Key)) *Table { - t.done = handler - return t -} - -// SetCell sets the content of a cell the specified position. It is ok to -// directly instantiate a TableCell object. If the cell has content, at least -// the Text and Color fields should be set. -// -// Note that setting cells in previously unknown rows and columns will -// automatically extend the internal table representation, e.g. starting with -// a row of 100,000 will immediately create 100,000 empty rows. -// -// To avoid unnecessary garbage collection, fill columns from left to right. -func (t *Table) SetCell(row, column int, cell *TableCell) *Table { - if row >= len(t.cells) { - t.cells = append(t.cells, make([][]*TableCell, row-len(t.cells)+1)...) - } - rowLen := len(t.cells[row]) - if column >= rowLen { - t.cells[row] = append(t.cells[row], make([]*TableCell, column-rowLen+1)...) - for c := rowLen; c < column; c++ { - t.cells[row][c] = &TableCell{} - } - } - t.cells[row][column] = cell - if column > t.lastColumn { - t.lastColumn = column - } - return t -} - -// SetCellSimple calls SetCell() with the given text, left-aligned, in white. -func (t *Table) SetCellSimple(row, column int, text string) *Table { - t.SetCell(row, column, NewTableCell(text)) - return t -} - -// GetCell returns the contents of the cell at the specified position. A valid -// TableCell object is always returned but it will be uninitialized if the cell -// was not previously set. -func (t *Table) GetCell(row, column int) *TableCell { - if row >= len(t.cells) || column >= len(t.cells[row]) { - return &TableCell{} - } - return t.cells[row][column] -} - -// RemoveRow removes the row at the given position from the table. If there is -// no such row, this has no effect. -func (t *Table) RemoveRow(row int) *Table { - if row < 0 || row >= len(t.cells) { - return t - } - - t.cells = append(t.cells[:row], t.cells[row+1:]...) - - return t -} - -// RemoveColumn removes the column at the given position from the table. If -// there is no such column, this has no effect. -func (t *Table) RemoveColumn(column int) *Table { - for row := range t.cells { - if column < 0 || column >= len(t.cells[row]) { - continue - } - t.cells[row] = append(t.cells[row][:column], t.cells[row][column+1:]...) - } - - return t -} - -// GetRowCount returns the number of rows in the table. -func (t *Table) GetRowCount() int { - return len(t.cells) -} - -// GetColumnCount returns the (maximum) number of columns in the table. -func (t *Table) GetColumnCount() int { - if len(t.cells) == 0 { - return 0 - } - return t.lastColumn + 1 -} - -// ScrollToBeginning scrolls the table to the beginning to that the top left -// corner of the table is shown. Note that this position may be corrected if -// there is a selection. -func (t *Table) ScrollToBeginning() *Table { - t.trackEnd = false - t.columnOffset = 0 - t.rowOffset = 0 - return t -} - -// ScrollToEnd scrolls the table to the beginning to that the bottom left corner -// of the table is shown. Adding more rows to the table will cause it to -// automatically scroll with the new data. Note that this position may be -// corrected if there is a selection. -func (t *Table) ScrollToEnd() *Table { - t.trackEnd = true - t.columnOffset = 0 - t.rowOffset = len(t.cells) - return t -} - -// Draw draws this primitive onto the screen. -func (t *Table) Draw(screen tcell.Screen) { - t.Box.Draw(screen) - - // What's our available screen space? - x, y, width, height := t.GetInnerRect() - if t.borders { - t.visibleRows = height / 2 - } else { - t.visibleRows = height - } - - // Return the cell at the specified position (nil if it doesn't exist). - getCell := func(row, column int) *TableCell { - if row < 0 || column < 0 || row >= len(t.cells) || column >= len(t.cells[row]) { - return nil - } - return t.cells[row][column] - } - - // If this cell is not selectable, find the next one. - if t.rowsSelectable || t.columnsSelectable { - if t.selectedColumn < 0 { - t.selectedColumn = 0 - } - if t.selectedRow < 0 { - t.selectedRow = 0 - } - for t.selectedRow < len(t.cells) { - cell := getCell(t.selectedRow, t.selectedColumn) - if cell == nil || !cell.NotSelectable { - break - } - t.selectedColumn++ - if t.selectedColumn > t.lastColumn { - t.selectedColumn = 0 - t.selectedRow++ - } - } - } - - // Clamp row offsets. - if t.rowsSelectable { - if t.selectedRow >= t.fixedRows && t.selectedRow < t.fixedRows+t.rowOffset { - t.rowOffset = t.selectedRow - t.fixedRows - t.trackEnd = false - } - if t.borders { - if 2*(t.selectedRow+1-t.rowOffset) >= height { - t.rowOffset = t.selectedRow + 1 - height/2 - t.trackEnd = false - } - } else { - if t.selectedRow+1-t.rowOffset >= height { - t.rowOffset = t.selectedRow + 1 - height - t.trackEnd = false - } - } - } - if t.borders { - if 2*(len(t.cells)-t.rowOffset) < height { - t.trackEnd = true - } - } else { - if len(t.cells)-t.rowOffset < height { - t.trackEnd = true - } - } - if t.trackEnd { - if t.borders { - t.rowOffset = len(t.cells) - height/2 - } else { - t.rowOffset = len(t.cells) - height - } - } - if t.rowOffset < 0 { - t.rowOffset = 0 - } - - // Clamp column offset. (Only left side here. The right side is more - // difficult and we'll do it below.) - if t.columnsSelectable && t.selectedColumn >= t.fixedColumns && t.selectedColumn < t.fixedColumns+t.columnOffset { - t.columnOffset = t.selectedColumn - t.fixedColumns - } - if t.columnOffset < 0 { - t.columnOffset = 0 - } - if t.selectedColumn < 0 { - t.selectedColumn = 0 - } - - // Determine the indices and widths of the columns and rows which fit on the - // screen. - var ( - columns, rows, widths []int - tableHeight, tableWidth int - ) - rowStep := 1 - if t.borders { - rowStep = 2 // With borders, every table row takes two screen rows. - tableWidth = 1 // We start at the second character because of the left table border. - } - indexRow := func(row int) bool { // Determine if this row is visible, store its index. - if tableHeight >= height { - return false - } - rows = append(rows, row) - tableHeight += rowStep - return true - } - for row := 0; row < t.fixedRows && row < len(t.cells); row++ { // Do the fixed rows first. - if !indexRow(row) { - break - } - } - for row := t.fixedRows + t.rowOffset; row < len(t.cells); row++ { // Then the remaining rows. - if !indexRow(row) { - break - } - } - var ( - skipped, lastTableWidth, expansionTotal int - expansions []int - ) -ColumnLoop: - for column := 0; ; column++ { - // If we've moved beyond the right border, we stop or skip a column. - for tableWidth-1 >= width { // -1 because we include one extra column if the separator falls on the right end of the box. - // We've moved beyond the available space. - if column < t.fixedColumns { - break ColumnLoop // We're in the fixed area. We're done. - } - if !t.columnsSelectable && skipped >= t.columnOffset { - break ColumnLoop // There is no selection and we've already reached the offset. - } - if t.columnsSelectable && t.selectedColumn-skipped == t.fixedColumns { - break ColumnLoop // The selected column reached the leftmost point before disappearing. - } - if t.columnsSelectable && skipped >= t.columnOffset && - (t.selectedColumn < column && lastTableWidth < width-1 && tableWidth < width-1 || t.selectedColumn < column-1) { - break ColumnLoop // We've skipped as many as requested and the selection is visible. - } - if len(columns) <= t.fixedColumns { - break // Nothing to skip. - } - - // We need to skip a column. - skipped++ - lastTableWidth -= widths[t.fixedColumns] + 1 - tableWidth -= widths[t.fixedColumns] + 1 - columns = append(columns[:t.fixedColumns], columns[t.fixedColumns+1:]...) - widths = append(widths[:t.fixedColumns], widths[t.fixedColumns+1:]...) - expansions = append(expansions[:t.fixedColumns], expansions[t.fixedColumns+1:]...) - } - - // What's this column's width (without expansion)? - maxWidth := -1 - expansion := 0 - for _, row := range rows { - if cell := getCell(row, column); cell != nil { - _, _, _, _, cellWidth := decomposeString(cell.Text) - if cell.MaxWidth > 0 && cell.MaxWidth < cellWidth { - cellWidth = cell.MaxWidth - } - if cellWidth > maxWidth { - maxWidth = cellWidth - } - if cell.Expansion > expansion { - expansion = cell.Expansion - } - } - } - if maxWidth < 0 { - break // No more cells found in this column. - } - - // Store new column info at the end. - columns = append(columns, column) - widths = append(widths, maxWidth) - lastTableWidth = tableWidth - tableWidth += maxWidth + 1 - expansions = append(expansions, expansion) - expansionTotal += expansion - } - t.columnOffset = skipped - - // If we have space left, distribute it. - if tableWidth < width { - toDistribute := width - tableWidth - for index, expansion := range expansions { - if expansionTotal <= 0 { - break - } - expWidth := toDistribute * expansion / expansionTotal - widths[index] += expWidth - toDistribute -= expWidth - expansionTotal -= expansion - } - } - - // Helper function which draws border runes. - borderStyle := tcell.StyleDefault.Background(t.backgroundColor).Foreground(t.bordersColor) - drawBorder := func(colX, rowY int, ch rune) { - screen.SetContent(x+colX, y+rowY, ch, nil, borderStyle) - } - - // Draw the cells (and borders). - var columnX int - if !t.borders { - columnX-- - } - for columnIndex, column := range columns { - columnWidth := widths[columnIndex] - for rowY, row := range rows { - if t.borders { - // Draw borders. - rowY *= 2 - for pos := 0; pos < columnWidth && columnX+1+pos < width; pos++ { - drawBorder(columnX+pos+1, rowY, Borders.Horizontal) - } - ch := Borders.Cross - if columnIndex == 0 { - if rowY == 0 { - ch = Borders.TopLeft - } else { - ch = Borders.LeftT - } - } else if rowY == 0 { - ch = Borders.TopT - } - drawBorder(columnX, rowY, ch) - rowY++ - if rowY >= height { - break // No space for the text anymore. - } - drawBorder(columnX, rowY, Borders.Vertical) - } else if columnIndex > 0 { - // Draw separator. - drawBorder(columnX, rowY, t.separator) - } - - // Get the cell. - cell := getCell(row, column) - if cell == nil { - continue - } - - // Draw text. - finalWidth := columnWidth - if columnX+1+columnWidth >= width { - finalWidth = width - columnX - 1 - } - cell.x, cell.y, cell.width = x+columnX+1, y+rowY, finalWidth - _, printed := printWithStyle(screen, cell.Text, x+columnX+1, y+rowY, finalWidth, cell.Align, tcell.StyleDefault.Foreground(cell.Color)|tcell.Style(cell.Attributes)) - if StringWidth(cell.Text)-printed > 0 && printed > 0 { - _, _, style, _ := screen.GetContent(x+columnX+1+finalWidth-1, y+rowY) - printWithStyle(screen, string(SemigraphicsHorizontalEllipsis), x+columnX+1+finalWidth-1, y+rowY, 1, AlignLeft, style) - } - } - - // Draw bottom border. - if rowY := 2 * len(rows); t.borders && rowY < height { - for pos := 0; pos < columnWidth && columnX+1+pos < width; pos++ { - drawBorder(columnX+pos+1, rowY, Borders.Horizontal) - } - ch := Borders.BottomT - if columnIndex == 0 { - ch = Borders.BottomLeft - } - drawBorder(columnX, rowY, ch) - } - - columnX += columnWidth + 1 - } - - // Draw right border. - if t.borders && len(t.cells) > 0 && columnX < width { - for rowY := range rows { - rowY *= 2 - if rowY+1 < height { - drawBorder(columnX, rowY+1, Borders.Vertical) - } - ch := Borders.RightT - if rowY == 0 { - ch = Borders.TopRight - } - drawBorder(columnX, rowY, ch) - } - if rowY := 2 * len(rows); rowY < height { - drawBorder(columnX, rowY, Borders.BottomRight) - } - } - - // Helper function which colors the background of a box. - // backgroundColor == tcell.ColorDefault => Don't color the background. - // textColor == tcell.ColorDefault => Don't change the text color. - // attr == 0 => Don't change attributes. - // invert == true => Ignore attr, set text to backgroundColor or t.backgroundColor; - // set background to textColor. - colorBackground := func(fromX, fromY, w, h int, backgroundColor, textColor tcell.Color, attr tcell.AttrMask, invert bool) { - for by := 0; by < h && fromY+by < y+height; by++ { - for bx := 0; bx < w && fromX+bx < x+width; bx++ { - m, c, style, _ := screen.GetContent(fromX+bx, fromY+by) - fg, bg, a := style.Decompose() - if invert { - if fg == textColor || fg == t.bordersColor { - fg = backgroundColor - } - if fg == tcell.ColorDefault { - fg = t.backgroundColor - } - style = style.Background(textColor).Foreground(fg) - } else { - if backgroundColor != tcell.ColorDefault { - bg = backgroundColor - } - if textColor != tcell.ColorDefault { - fg = textColor - } - if attr != 0 { - a = attr - } - style = style.Background(bg).Foreground(fg) | tcell.Style(a) - } - screen.SetContent(fromX+bx, fromY+by, m, c, style) - } - } - } - - // Color the cell backgrounds. To avoid undesirable artefacts, we combine - // the drawing of a cell by background color, selected cells last. - type cellInfo struct { - x, y, w, h int - text tcell.Color - selected bool - } - cellsByBackgroundColor := make(map[tcell.Color][]*cellInfo) - var backgroundColors []tcell.Color - for rowY, row := range rows { - columnX := 0 - rowSelected := t.rowsSelectable && !t.columnsSelectable && row == t.selectedRow - for columnIndex, column := range columns { - columnWidth := widths[columnIndex] - cell := getCell(row, column) - if cell == nil { - continue - } - bx, by, bw, bh := x+columnX, y+rowY, columnWidth+1, 1 - if t.borders { - by = y + rowY*2 - bw++ - bh = 3 - } - columnSelected := t.columnsSelectable && !t.rowsSelectable && column == t.selectedColumn - cellSelected := !cell.NotSelectable && (columnSelected || rowSelected || t.rowsSelectable && t.columnsSelectable && column == t.selectedColumn && row == t.selectedRow) - entries, ok := cellsByBackgroundColor[cell.BackgroundColor] - cellsByBackgroundColor[cell.BackgroundColor] = append(entries, &cellInfo{ - x: bx, - y: by, - w: bw, - h: bh, - text: cell.Color, - selected: cellSelected, - }) - if !ok { - backgroundColors = append(backgroundColors, cell.BackgroundColor) - } - columnX += columnWidth + 1 - } - } - sort.Slice(backgroundColors, func(i int, j int) bool { - // Draw brightest colors last (i.e. on top). - r, g, b := backgroundColors[i].RGB() - c := colorful.Color{R: float64(r) / 255, G: float64(g) / 255, B: float64(b) / 255} - _, _, li := c.Hcl() - r, g, b = backgroundColors[j].RGB() - c = colorful.Color{R: float64(r) / 255, G: float64(g) / 255, B: float64(b) / 255} - _, _, lj := c.Hcl() - return li < lj - }) - selFg, selBg, selAttr := t.selectedStyle.Decompose() - for _, bgColor := range backgroundColors { - entries := cellsByBackgroundColor[bgColor] - for _, cell := range entries { - if cell.selected { - if t.selectedStyle != 0 { - defer colorBackground(cell.x, cell.y, cell.w, cell.h, selBg, selFg, selAttr, false) - } else { - defer colorBackground(cell.x, cell.y, cell.w, cell.h, bgColor, cell.text, 0, true) - } - } else { - colorBackground(cell.x, cell.y, cell.w, cell.h, bgColor, tcell.ColorDefault, 0, false) - } - } - } -} - -// InputHandler returns the handler for this primitive. -func (t *Table) InputHandler() func(event *tcell.EventKey, setFocus func(p Primitive)) { - return t.WrapInputHandler(func(event *tcell.EventKey, setFocus func(p Primitive)) { - key := event.Key() - - if (!t.rowsSelectable && !t.columnsSelectable && key == tcell.KeyEnter) || - key == tcell.KeyEscape || - key == tcell.KeyTab || - key == tcell.KeyBacktab { - if t.done != nil { - t.done(key) - } - return - } - - // Movement functions. - previouslySelectedRow, previouslySelectedColumn := t.selectedRow, t.selectedColumn - var ( - getCell = func(row, column int) *TableCell { - if row < 0 || column < 0 || row >= len(t.cells) || column >= len(t.cells[row]) { - return nil - } - return t.cells[row][column] - } - - previous = func() { - for t.selectedRow >= 0 { - cell := getCell(t.selectedRow, t.selectedColumn) - if cell == nil || !cell.NotSelectable { - return - } - t.selectedColumn-- - if t.selectedColumn < 0 { - t.selectedColumn = t.lastColumn - t.selectedRow-- - } - } - } - - next = func() { - if t.selectedColumn > t.lastColumn { - t.selectedColumn = 0 - t.selectedRow++ - if t.selectedRow >= len(t.cells) { - t.selectedRow = len(t.cells) - 1 - } - } - for t.selectedRow < len(t.cells) { - cell := getCell(t.selectedRow, t.selectedColumn) - if cell == nil || !cell.NotSelectable { - return - } - t.selectedColumn++ - if t.selectedColumn > t.lastColumn { - t.selectedColumn = 0 - t.selectedRow++ - } - } - t.selectedColumn = t.lastColumn - t.selectedRow = len(t.cells) - 1 - previous() - } - - home = func() { - if t.rowsSelectable { - t.selectedRow = 0 - t.selectedColumn = 0 - next() - } else { - t.trackEnd = false - t.rowOffset = 0 - t.columnOffset = 0 - } - } - - end = func() { - if t.rowsSelectable { - t.selectedRow = len(t.cells) - 1 - t.selectedColumn = t.lastColumn - previous() - } else { - t.trackEnd = true - t.columnOffset = 0 - } - } - - down = func() { - if t.rowsSelectable { - t.selectedRow++ - if t.selectedRow >= len(t.cells) { - t.selectedRow = len(t.cells) - 1 - } - next() - } else { - t.rowOffset++ - } - } - - up = func() { - if t.rowsSelectable { - t.selectedRow-- - if t.selectedRow < 0 { - t.selectedRow = 0 - } - previous() - } else { - t.trackEnd = false - t.rowOffset-- - } - } - - left = func() { - if t.columnsSelectable { - t.selectedColumn-- - if t.selectedColumn < 0 { - t.selectedColumn = 0 - } - previous() - } else { - t.columnOffset-- - } - } - - right = func() { - if t.columnsSelectable { - t.selectedColumn++ - if t.selectedColumn > t.lastColumn { - t.selectedColumn = t.lastColumn - } - next() - } else { - t.columnOffset++ - } - } - - pageDown = func() { - if t.rowsSelectable { - t.selectedRow += t.visibleRows - if t.selectedRow >= len(t.cells) { - t.selectedRow = len(t.cells) - 1 - } - next() - } else { - t.rowOffset += t.visibleRows - } - } - - pageUp = func() { - if t.rowsSelectable { - t.selectedRow -= t.visibleRows - if t.selectedRow < 0 { - t.selectedRow = 0 - } - previous() - } else { - t.trackEnd = false - t.rowOffset -= t.visibleRows - } - } - ) - - switch key { - case tcell.KeyRune: - switch event.Rune() { - case 'g': - home() - case 'G': - end() - case 'j': - down() - case 'k': - up() - case 'h': - left() - case 'l': - right() - } - case tcell.KeyHome: - home() - case tcell.KeyEnd: - end() - case tcell.KeyUp: - up() - case tcell.KeyDown: - down() - case tcell.KeyLeft: - left() - case tcell.KeyRight: - right() - case tcell.KeyPgDn, tcell.KeyCtrlF: - pageDown() - case tcell.KeyPgUp, tcell.KeyCtrlB: - pageUp() - case tcell.KeyEnter: - if (t.rowsSelectable || t.columnsSelectable) && t.selected != nil { - t.selected(t.selectedRow, t.selectedColumn) - } - } - - // If the selection has changed, notify the handler. - if t.selectionChanged != nil && - (t.rowsSelectable && previouslySelectedRow != t.selectedRow || - t.columnsSelectable && previouslySelectedColumn != t.selectedColumn) { - t.selectionChanged(t.selectedRow, t.selectedColumn) - } - }) -} diff --git a/vendor/maunium.net/go/tview/textview.go b/vendor/maunium.net/go/tview/textview.go deleted file mode 100644 index 63d9796..0000000 --- a/vendor/maunium.net/go/tview/textview.go +++ /dev/null @@ -1,1018 +0,0 @@ -package tview - -import ( - "bytes" - "fmt" - "regexp" - "sync" - "unicode/utf8" - - "maunium.net/go/tcell" - "github.com/lucasb-eyer/go-colorful" - runewidth "github.com/mattn/go-runewidth" -) - -// TabSize is the number of spaces with which a tab character will be replaced. -var TabSize = 4 - -// textViewIndex contains information about each line displayed in the text -// view. -type textViewIndex struct { - Line int // The index into the "buffer" variable. - Pos int // The index into the "buffer" string (byte position). - NextPos int // The (byte) index of the next character in this buffer line. - Width int // The screen width of this line. - ForegroundColor string // The starting foreground color ("" = don't change, "-" = reset). - BackgroundColor string // The starting background color ("" = don't change, "-" = reset). - Attributes string // The starting attributes ("" = don't change, "-" = reset). - Region string // The starting region ID. -} - -// TextView is a box which displays text. It implements the io.Writer interface -// so you can stream text to it. This does not trigger a redraw automatically -// but if a handler is installed via SetChangedFunc(), you can cause it to be -// redrawn. (See SetChangedFunc() for more details.) -// -// Navigation -// -// If the text view is scrollable (the default), text is kept in a buffer which -// may be larger than the screen and can be navigated similarly to Vim: -// -// - h, left arrow: Move left. -// - l, right arrow: Move right. -// - j, down arrow: Move down. -// - k, up arrow: Move up. -// - g, home: Move to the top. -// - G, end: Move to the bottom. -// - Ctrl-F, page down: Move down by one page. -// - Ctrl-B, page up: Move up by one page. -// -// If the text is not scrollable, any text above the top visible line is -// discarded. -// -// Use SetInputCapture() to override or modify keyboard input. -// -// Colors -// -// If dynamic colors are enabled via SetDynamicColors(), text color can be -// changed dynamically by embedding color strings in square brackets. This works -// the same way as anywhere else. Please see the package documentation for more -// information. -// -// Regions and Highlights -// -// If regions are enabled via SetRegions(), you can define text regions within -// the text and assign region IDs to them. Text regions start with region tags. -// Region tags are square brackets that contain a region ID in double quotes, -// for example: -// -// We define a ["rg"]region[""] here. -// -// A text region ends with the next region tag. Tags with no region ID ([""]) -// don't start new regions. They can therefore be used to mark the end of a -// region. Region IDs must satisfy the following regular expression: -// -// [a-zA-Z0-9_,;: \-\.]+ -// -// Regions can be highlighted by calling the Highlight() function with one or -// more region IDs. This can be used to display search results, for example. -// -// The ScrollToHighlight() function can be used to jump to the currently -// highlighted region once when the text view is drawn the next time. -// -// See https://github.com/rivo/tview/wiki/TextView for an example. -type TextView struct { - sync.Mutex - *Box - - // The text buffer. - buffer []string - - // The last bytes that have been received but are not part of the buffer yet. - recentBytes []byte - - // The processed line index. This is nil if the buffer has changed and needs - // to be re-indexed. - index []*textViewIndex - - // The text alignment, one of AlignLeft, AlignCenter, or AlignRight. - align int - - // Indices into the "index" slice which correspond to the first line of the - // first highlight and the last line of the last highlight. This is calculated - // during re-indexing. Set to -1 if there is no current highlight. - fromHighlight, toHighlight int - - // The screen space column of the highlight in its first line. Set to -1 if - // there is no current highlight. - posHighlight int - - // A set of region IDs that are currently highlighted. - highlights map[string]struct{} - - // The last width for which the current table is drawn. - lastWidth int - - // The screen width of the longest line in the index (not the buffer). - longestLine int - - // The index of the first line shown in the text view. - lineOffset int - - // If set to true, the text view will always remain at the end of the content. - trackEnd bool - - // The number of characters to be skipped on each line (not in wrap mode). - columnOffset int - - // The height of the content the last time the text view was drawn. - pageSize int - - // If set to true, the text view will keep a buffer of text which can be - // navigated when the text is longer than what fits into the box. - scrollable bool - - // If set to true, lines that are longer than the available width are wrapped - // onto the next line. If set to false, any characters beyond the available - // width are discarded. - wrap bool - - // If set to true and if wrap is also true, lines are split at spaces or - // after punctuation characters. - wordWrap bool - - // The (starting) color of the text. - textColor tcell.Color - - // If set to true, the text color can be changed dynamically by piping color - // strings in square brackets to the text view. - dynamicColors bool - - // If set to true, region tags can be used to define regions. - regions bool - - // A temporary flag which, when true, will automatically bring the current - // highlight(s) into the visible screen. - scrollToHighlights bool - - // An optional function which is called when the content of the text view has - // changed. - changed func() - - // An optional function which is called when the user presses one of the - // following keys: Escape, Enter, Tab, Backtab. - done func(tcell.Key) -} - -// NewTextView returns a new text view. -func NewTextView() *TextView { - return &TextView{ - Box: NewBox(), - highlights: make(map[string]struct{}), - lineOffset: -1, - scrollable: true, - align: AlignLeft, - wrap: true, - textColor: Styles.PrimaryTextColor, - regions: false, - dynamicColors: false, - } -} - -// SetScrollable sets the flag that decides whether or not the text view is -// scrollable. If true, text is kept in a buffer and can be navigated. -func (t *TextView) SetScrollable(scrollable bool) *TextView { - t.scrollable = scrollable - if !scrollable { - t.trackEnd = true - } - return t -} - -// SetWrap sets the flag that, if true, leads to lines that are longer than the -// available width being wrapped onto the next line. If false, any characters -// beyond the available width are not displayed. -func (t *TextView) SetWrap(wrap bool) *TextView { - if t.wrap != wrap { - t.index = nil - } - t.wrap = wrap - return t -} - -// SetWordWrap sets the flag that, if true and if the "wrap" flag is also true -// (see SetWrap()), wraps the line at spaces or after punctuation marks. Note -// that trailing spaces will not be printed. -// -// This flag is ignored if the "wrap" flag is false. -func (t *TextView) SetWordWrap(wrapOnWords bool) *TextView { - if t.wordWrap != wrapOnWords { - t.index = nil - } - t.wordWrap = wrapOnWords - return t -} - -// SetTextAlign sets the text alignment within the text view. This must be -// either AlignLeft, AlignCenter, or AlignRight. -func (t *TextView) SetTextAlign(align int) *TextView { - if t.align != align { - t.index = nil - } - t.align = align - return t -} - -// SetTextColor sets the initial color of the text (which can be changed -// dynamically by sending color strings in square brackets to the text view if -// dynamic colors are enabled). -func (t *TextView) SetTextColor(color tcell.Color) *TextView { - t.textColor = color - return t -} - -// SetText sets the text of this text view to the provided string. Previously -// contained text will be removed. -func (t *TextView) SetText(text string) *TextView { - t.Clear() - fmt.Fprint(t, text) - return t -} - -// SetDynamicColors sets the flag that allows the text color to be changed -// dynamically. See class description for details. -func (t *TextView) SetDynamicColors(dynamic bool) *TextView { - if t.dynamicColors != dynamic { - t.index = nil - } - t.dynamicColors = dynamic - return t -} - -// SetRegions sets the flag that allows to define regions in the text. See class -// description for details. -func (t *TextView) SetRegions(regions bool) *TextView { - if t.regions != regions { - t.index = nil - } - t.regions = regions - return t -} - -// SetChangedFunc sets a handler function which is called when the text of the -// text view has changed. This is useful when text is written to this io.Writer -// in a separate goroutine. This does not automatically cause the screen to be -// refreshed so you may want to use the "changed" handler to redraw the screen. -// -// Note that to avoid race conditions or deadlocks, there are a few rules you -// should follow: -// -// - You can call Application.Draw() from this handler. -// - You can call TextView.HasFocus() from this handler. -// - During the execution of this handler, access to any other variables from -// this primitive or any other primitive should be queued using -// Application.QueueUpdate(). -// -// See package description for details on dealing with concurrency. -func (t *TextView) SetChangedFunc(handler func()) *TextView { - t.changed = handler - return t -} - -// SetDoneFunc sets a handler which is called when the user presses on the -// following keys: Escape, Enter, Tab, Backtab. The key is passed to the -// handler. -func (t *TextView) SetDoneFunc(handler func(key tcell.Key)) *TextView { - t.done = handler - return t -} - -// ScrollTo scrolls to the specified row and column (both starting with 0). -func (t *TextView) ScrollTo(row, column int) *TextView { - if !t.scrollable { - return t - } - t.lineOffset = row - t.columnOffset = column - return t -} - -// ScrollToBeginning scrolls to the top left corner of the text if the text view -// is scrollable. -func (t *TextView) ScrollToBeginning() *TextView { - if !t.scrollable { - return t - } - t.trackEnd = false - t.lineOffset = 0 - t.columnOffset = 0 - return t -} - -// ScrollToEnd scrolls to the bottom left corner of the text if the text view -// is scrollable. Adding new rows to the end of the text view will cause it to -// scroll with the new data. -func (t *TextView) ScrollToEnd() *TextView { - if !t.scrollable { - return t - } - t.trackEnd = true - t.columnOffset = 0 - return t -} - -// GetScrollOffset returns the number of rows and columns that are skipped at -// the top left corner when the text view has been scrolled. -func (t *TextView) GetScrollOffset() (row, column int) { - return t.lineOffset, t.columnOffset -} - -// Clear removes all text from the buffer. -func (t *TextView) Clear() *TextView { - t.buffer = nil - t.recentBytes = nil - t.index = nil - return t -} - -// Highlight specifies which regions should be highlighted. See class -// description for details on regions. Empty region strings are ignored. -// -// Text in highlighted regions will be drawn inverted, i.e. with their -// background and foreground colors swapped. -// -// Calling this function will remove any previous highlights. To remove all -// highlights, call this function without any arguments. -func (t *TextView) Highlight(regionIDs ...string) *TextView { - t.highlights = make(map[string]struct{}) - for _, id := range regionIDs { - if id == "" { - continue - } - t.highlights[id] = struct{}{} - } - t.index = nil - return t -} - -// GetHighlights returns the IDs of all currently highlighted regions. -func (t *TextView) GetHighlights() (regionIDs []string) { - for id := range t.highlights { - regionIDs = append(regionIDs, id) - } - return -} - -// ScrollToHighlight will cause the visible area to be scrolled so that the -// highlighted regions appear in the visible area of the text view. This -// repositioning happens the next time the text view is drawn. It happens only -// once so you will need to call this function repeatedly to always keep -// highlighted regions in view. -// -// Nothing happens if there are no highlighted regions or if the text view is -// not scrollable. -func (t *TextView) ScrollToHighlight() *TextView { - if len(t.highlights) == 0 || !t.scrollable || !t.regions { - return t - } - t.index = nil - t.scrollToHighlights = true - t.trackEnd = false - return t -} - -// GetRegionText returns the text of the region with the given ID. If dynamic -// colors are enabled, color tags are stripped from the text. Newlines are -// always returned as '\n' runes. -// -// If the region does not exist or if regions are turned off, an empty string -// is returned. -func (t *TextView) GetRegionText(regionID string) string { - if !t.regions || regionID == "" { - return "" - } - - var ( - buffer bytes.Buffer - currentRegionID string - ) - - for _, str := range t.buffer { - // Find all color tags in this line. - var colorTagIndices [][]int - if t.dynamicColors { - colorTagIndices = colorPattern.FindAllStringIndex(str, -1) - } - - // Find all regions in this line. - var ( - regionIndices [][]int - regions [][]string - ) - if t.regions { - regionIndices = regionPattern.FindAllStringIndex(str, -1) - regions = regionPattern.FindAllStringSubmatch(str, -1) - } - - // Analyze this line. - var currentTag, currentRegion int - for pos, ch := range str { - // Skip any color tags. - if currentTag < len(colorTagIndices) && pos >= colorTagIndices[currentTag][0] && pos < colorTagIndices[currentTag][1] { - if pos == colorTagIndices[currentTag][1]-1 { - currentTag++ - } - continue - } - - // Skip any regions. - if currentRegion < len(regionIndices) && pos >= regionIndices[currentRegion][0] && pos < regionIndices[currentRegion][1] { - if pos == regionIndices[currentRegion][1]-1 { - if currentRegionID == regionID { - // This is the end of the requested region. We're done. - return buffer.String() - } - currentRegionID = regions[currentRegion][1] - currentRegion++ - } - continue - } - - // Add this rune. - if currentRegionID == regionID { - buffer.WriteRune(ch) - } - } - - // Add newline. - if currentRegionID == regionID { - buffer.WriteRune('\n') - } - } - - return escapePattern.ReplaceAllString(buffer.String(), `[$1$2]`) -} - -// Focus is called when this primitive receives focus. -func (t *TextView) Focus(delegate func(p Primitive)) { - // Implemented here with locking because this is used by layout primitives. - t.Lock() - defer t.Unlock() - t.hasFocus = true -} - -// HasFocus returns whether or not this primitive has focus. -func (t *TextView) HasFocus() bool { - // Implemented here with locking because this may be used in the "changed" - // callback. - t.Lock() - defer t.Unlock() - return t.hasFocus -} - -// Write lets us implement the io.Writer interface. Tab characters will be -// replaced with TabSize space characters. A "\n" or "\r\n" will be interpreted -// as a new line. -func (t *TextView) Write(p []byte) (n int, err error) { - // Notify at the end. - t.Lock() - changed := t.changed - t.Unlock() - if changed != nil { - defer changed() // Deadlocks may occur if we lock here. - } - - t.Lock() - defer t.Unlock() - - // Copy data over. - newBytes := append(t.recentBytes, p...) - t.recentBytes = nil - - // If we have a trailing invalid UTF-8 byte, we'll wait. - if r, _ := utf8.DecodeLastRune(p); r == utf8.RuneError { - t.recentBytes = newBytes - return len(p), nil - } - - // If we have a trailing open dynamic color, exclude it. - if t.dynamicColors { - openColor := regexp.MustCompile(`\[([a-zA-Z]*|#[0-9a-zA-Z]*)$`) - location := openColor.FindIndex(newBytes) - if location != nil { - t.recentBytes = newBytes[location[0]:] - newBytes = newBytes[:location[0]] - } - } - - // If we have a trailing open region, exclude it. - if t.regions { - openRegion := regexp.MustCompile(`\["[a-zA-Z0-9_,;: \-\.]*"?$`) - location := openRegion.FindIndex(newBytes) - if location != nil { - t.recentBytes = newBytes[location[0]:] - newBytes = newBytes[:location[0]] - } - } - - // Transform the new bytes into strings. - newLine := regexp.MustCompile(`\r?\n`) - newBytes = bytes.Replace(newBytes, []byte{'\t'}, bytes.Repeat([]byte{' '}, TabSize), -1) - for index, line := range newLine.Split(string(newBytes), -1) { - if index == 0 { - if len(t.buffer) == 0 { - t.buffer = []string{line} - } else { - t.buffer[len(t.buffer)-1] += line - } - } else { - t.buffer = append(t.buffer, line) - } - } - - // Reset the index. - t.index = nil - - return len(p), nil -} - -// reindexBuffer re-indexes the buffer such that we can use it to easily draw -// the buffer onto the screen. Each line in the index will contain a pointer -// into the buffer from which on we will print text. It will also contain the -// color with which the line starts. -func (t *TextView) reindexBuffer(width int) { - if t.index != nil { - return // Nothing has changed. We can still use the current index. - } - t.index = nil - t.fromHighlight, t.toHighlight, t.posHighlight = -1, -1, -1 - - // If there's no space, there's no index. - if width < 1 { - return - } - - // Initial states. - regionID := "" - var highlighted bool - - // Go through each line in the buffer. - for bufferIndex, str := range t.buffer { - // Find all color tags in this line. Then remove them. - var ( - colorTagIndices [][]int - colorTags [][]string - escapeIndices [][]int - ) - strippedStr := str - if t.dynamicColors { - colorTagIndices, colorTags, escapeIndices, strippedStr, _ = decomposeString(str) - } - - // Find all regions in this line. Then remove them. - var ( - regionIndices [][]int - regions [][]string - ) - if t.regions { - regionIndices = regionPattern.FindAllStringIndex(str, -1) - regions = regionPattern.FindAllStringSubmatch(str, -1) - strippedStr = regionPattern.ReplaceAllString(strippedStr, "") - } - - // We don't need the original string anymore for now. - str = strippedStr - - // Split the line if required. - var splitLines []string - if t.wrap && len(str) > 0 { - for len(str) > 0 { - extract := runewidth.Truncate(str, width, "") - if t.wordWrap && len(extract) < len(str) { - // Add any spaces from the next line. - if spaces := spacePattern.FindStringIndex(str[len(extract):]); spaces != nil && spaces[0] == 0 { - extract = str[:len(extract)+spaces[1]] - } - - // Can we split before the mandatory end? - matches := boundaryPattern.FindAllStringIndex(extract, -1) - if len(matches) > 0 { - // Yes. Let's split there. - extract = extract[:matches[len(matches)-1][1]] - } - } - splitLines = append(splitLines, extract) - str = str[len(extract):] - } - } else { - // No need to split the line. - splitLines = []string{str} - } - - // Create index from split lines. - var ( - originalPos, colorPos, regionPos, escapePos int - foregroundColor, backgroundColor, attributes string - ) - for _, splitLine := range splitLines { - line := &textViewIndex{ - Line: bufferIndex, - Pos: originalPos, - ForegroundColor: foregroundColor, - BackgroundColor: backgroundColor, - Attributes: attributes, - Region: regionID, - } - - // Shift original position with tags. - lineLength := len(splitLine) - remainingLength := lineLength - tagEnd := originalPos - totalTagLength := 0 - for { - // Which tag comes next? - nextTag := make([][3]int, 0, 3) - if colorPos < len(colorTagIndices) { - nextTag = append(nextTag, [3]int{colorTagIndices[colorPos][0], colorTagIndices[colorPos][1], 0}) // 0 = color tag. - } - if regionPos < len(regionIndices) { - nextTag = append(nextTag, [3]int{regionIndices[regionPos][0], regionIndices[regionPos][1], 1}) // 1 = region tag. - } - if escapePos < len(escapeIndices) { - nextTag = append(nextTag, [3]int{escapeIndices[escapePos][0], escapeIndices[escapePos][1], 2}) // 2 = escape tag. - } - minPos := -1 - tagIndex := -1 - for index, pair := range nextTag { - if minPos < 0 || pair[0] < minPos { - minPos = pair[0] - tagIndex = index - } - } - - // Is the next tag in range? - if tagIndex < 0 || minPos >= tagEnd+remainingLength { - break // No. We're done with this line. - } - - // Advance. - strippedTagStart := nextTag[tagIndex][0] - originalPos - totalTagLength - tagEnd = nextTag[tagIndex][1] - tagLength := tagEnd - nextTag[tagIndex][0] - if nextTag[tagIndex][2] == 2 { - tagLength = 1 - } - totalTagLength += tagLength - remainingLength = lineLength - (tagEnd - originalPos - totalTagLength) - - // Process the tag. - switch nextTag[tagIndex][2] { - case 0: - // Process color tags. - foregroundColor, backgroundColor, attributes = styleFromTag(foregroundColor, backgroundColor, attributes, colorTags[colorPos]) - colorPos++ - case 1: - // Process region tags. - regionID = regions[regionPos][1] - _, highlighted = t.highlights[regionID] - - // Update highlight range. - if highlighted { - line := len(t.index) - if t.fromHighlight < 0 { - t.fromHighlight, t.toHighlight = line, line - t.posHighlight = runewidth.StringWidth(splitLine[:strippedTagStart]) - } else if line > t.toHighlight { - t.toHighlight = line - } - } - - regionPos++ - case 2: - // Process escape tags. - escapePos++ - } - } - - // Advance to next line. - originalPos += lineLength + totalTagLength - - // Append this line. - line.NextPos = originalPos - line.Width = runewidth.StringWidth(splitLine) - t.index = append(t.index, line) - } - - // Word-wrapped lines may have trailing whitespace. Remove it. - if t.wrap && t.wordWrap { - for _, line := range t.index { - str := t.buffer[line.Line][line.Pos:line.NextPos] - spaces := spacePattern.FindAllStringIndex(str, -1) - if spaces != nil && spaces[len(spaces)-1][1] == len(str) { - oldNextPos := line.NextPos - line.NextPos -= spaces[len(spaces)-1][1] - spaces[len(spaces)-1][0] - line.Width -= runewidth.StringWidth(t.buffer[line.Line][line.NextPos:oldNextPos]) - } - } - } - } - - // Calculate longest line. - t.longestLine = 0 - for _, line := range t.index { - if line.Width > t.longestLine { - t.longestLine = line.Width - } - } -} - -// Draw draws this primitive onto the screen. -func (t *TextView) Draw(screen tcell.Screen) { - t.Lock() - defer t.Unlock() - t.Box.Draw(screen) - - // Get the available size. - x, y, width, height := t.GetInnerRect() - t.pageSize = height - - // If the width has changed, we need to reindex. - if width != t.lastWidth && t.wrap { - t.index = nil - } - t.lastWidth = width - - // Re-index. - t.reindexBuffer(width) - - // If we don't have an index, there's nothing to draw. - if t.index == nil { - return - } - - // Move to highlighted regions. - if t.regions && t.scrollToHighlights && t.fromHighlight >= 0 { - // Do we fit the entire height? - if t.toHighlight-t.fromHighlight+1 < height { - // Yes, let's center the highlights. - t.lineOffset = (t.fromHighlight + t.toHighlight - height) / 2 - } else { - // No, let's move to the start of the highlights. - t.lineOffset = t.fromHighlight - } - - // If the highlight is too far to the right, move it to the middle. - if t.posHighlight-t.columnOffset > 3*width/4 { - t.columnOffset = t.posHighlight - width/2 - } - - // If the highlight is off-screen on the left, move it on-screen. - if t.posHighlight-t.columnOffset < 0 { - t.columnOffset = t.posHighlight - width/4 - } - } - t.scrollToHighlights = false - - // Adjust line offset. - if t.lineOffset+height > len(t.index) { - t.trackEnd = true - } - if t.trackEnd { - t.lineOffset = len(t.index) - height - } - if t.lineOffset < 0 { - t.lineOffset = 0 - } - - // Adjust column offset. - if t.align == AlignLeft { - if t.columnOffset+width > t.longestLine { - t.columnOffset = t.longestLine - width - } - if t.columnOffset < 0 { - t.columnOffset = 0 - } - } else if t.align == AlignRight { - if t.columnOffset-width < -t.longestLine { - t.columnOffset = width - t.longestLine - } - if t.columnOffset > 0 { - t.columnOffset = 0 - } - } else { // AlignCenter. - half := (t.longestLine - width) / 2 - if half > 0 { - if t.columnOffset > half { - t.columnOffset = half - } - if t.columnOffset < -half { - t.columnOffset = -half - } - } else { - t.columnOffset = 0 - } - } - - // Draw the buffer. - defaultStyle := tcell.StyleDefault.Foreground(t.textColor) - for line := t.lineOffset; line < len(t.index); line++ { - // Are we done? - if line-t.lineOffset >= height { - break - } - - // Get the text for this line. - index := t.index[line] - text := t.buffer[index.Line][index.Pos:index.NextPos] - foregroundColor := index.ForegroundColor - backgroundColor := index.BackgroundColor - attributes := index.Attributes - regionID := index.Region - - // Get color tags. - var ( - colorTagIndices [][]int - colorTags [][]string - escapeIndices [][]int - ) - strippedText := text - if t.dynamicColors { - colorTagIndices, colorTags, escapeIndices, strippedText, _ = decomposeString(text) - } - - // Get regions. - var ( - regionIndices [][]int - regions [][]string - ) - if t.regions { - regionIndices = regionPattern.FindAllStringIndex(text, -1) - regions = regionPattern.FindAllStringSubmatch(text, -1) - strippedText = regionPattern.ReplaceAllString(strippedText, "") - if !t.dynamicColors { - escapeIndices = escapePattern.FindAllStringIndex(text, -1) - strippedText = string(escapePattern.ReplaceAllString(strippedText, "[$1$2]")) - } - } - - // Calculate the position of the line. - var skip, posX int - if t.align == AlignLeft { - posX = -t.columnOffset - } else if t.align == AlignRight { - posX = width - index.Width - t.columnOffset - } else { // AlignCenter. - posX = (width-index.Width)/2 - t.columnOffset - } - if posX < 0 { - skip = -posX - posX = 0 - } - - // Print the line. - var colorPos, regionPos, escapePos, tagOffset, skipped int - iterateString(strippedText, func(main rune, comb []rune, textPos, textWidth, screenPos, screenWidth int) bool { - // Process tags. - for { - if colorPos < len(colorTags) && textPos+tagOffset >= colorTagIndices[colorPos][0] && textPos+tagOffset < colorTagIndices[colorPos][1] { - // Get the color. - foregroundColor, backgroundColor, attributes = styleFromTag(foregroundColor, backgroundColor, attributes, colorTags[colorPos]) - tagOffset += colorTagIndices[colorPos][1] - colorTagIndices[colorPos][0] - colorPos++ - } else if regionPos < len(regionIndices) && textPos+tagOffset >= regionIndices[regionPos][0] && textPos+tagOffset < regionIndices[regionPos][1] { - // Get the region. - regionID = regions[regionPos][1] - tagOffset += regionIndices[regionPos][1] - regionIndices[regionPos][0] - regionPos++ - } else { - break - } - } - - // Skip the second-to-last character of an escape tag. - if escapePos < len(escapeIndices) && textPos+tagOffset == escapeIndices[escapePos][1]-2 { - tagOffset++ - escapePos++ - } - - // Mix the existing style with the new style. - _, _, existingStyle, _ := screen.GetContent(x+posX, y+line-t.lineOffset) - _, background, _ := existingStyle.Decompose() - style := overlayStyle(background, defaultStyle, foregroundColor, backgroundColor, attributes) - - // Do we highlight this character? - var highlighted bool - if len(regionID) > 0 { - if _, ok := t.highlights[regionID]; ok { - highlighted = true - } - } - if highlighted { - fg, bg, _ := style.Decompose() - if bg == tcell.ColorDefault { - r, g, b := fg.RGB() - c := colorful.Color{R: float64(r) / 255, G: float64(g) / 255, B: float64(b) / 255} - _, _, li := c.Hcl() - if li < .5 { - bg = tcell.ColorWhite - } else { - bg = tcell.ColorBlack - } - } - style = style.Background(fg).Foreground(bg) - } - - // Skip to the right. - if !t.wrap && skipped < skip { - skipped += screenWidth - return false - } - - // Stop at the right border. - if posX+screenWidth > width { - return true - } - - // Draw the character. - for offset := screenWidth - 1; offset >= 0; offset-- { - if offset == 0 { - screen.SetContent(x+posX+offset, y+line-t.lineOffset, main, comb, style) - } else { - screen.SetContent(x+posX+offset, y+line-t.lineOffset, ' ', nil, style) - } - } - - // Advance. - posX += screenWidth - return false - }) - } - - // If this view is not scrollable, we'll purge the buffer of lines that have - // scrolled out of view. - if !t.scrollable && t.lineOffset > 0 { - t.buffer = t.buffer[t.index[t.lineOffset].Line:] - t.index = nil - } -} - -// InputHandler returns the handler for this primitive. -func (t *TextView) InputHandler() func(event *tcell.EventKey, setFocus func(p Primitive)) { - return t.WrapInputHandler(func(event *tcell.EventKey, setFocus func(p Primitive)) { - key := event.Key() - - if key == tcell.KeyEscape || key == tcell.KeyEnter || key == tcell.KeyTab || key == tcell.KeyBacktab { - if t.done != nil { - t.done(key) - } - return - } - - if !t.scrollable { - return - } - - switch key { - case tcell.KeyRune: - switch event.Rune() { - case 'g': // Home. - t.trackEnd = false - t.lineOffset = 0 - t.columnOffset = 0 - case 'G': // End. - t.trackEnd = true - t.columnOffset = 0 - case 'j': // Down. - t.lineOffset++ - case 'k': // Up. - t.trackEnd = false - t.lineOffset-- - case 'h': // Left. - t.columnOffset-- - case 'l': // Right. - t.columnOffset++ - } - case tcell.KeyHome: - t.trackEnd = false - t.lineOffset = 0 - t.columnOffset = 0 - case tcell.KeyEnd: - t.trackEnd = true - t.columnOffset = 0 - case tcell.KeyUp: - t.trackEnd = false - t.lineOffset-- - case tcell.KeyDown: - t.lineOffset++ - case tcell.KeyLeft: - t.columnOffset-- - case tcell.KeyRight: - t.columnOffset++ - case tcell.KeyPgDn, tcell.KeyCtrlF: - t.lineOffset += t.pageSize - case tcell.KeyPgUp, tcell.KeyCtrlB: - t.trackEnd = false - t.lineOffset -= t.pageSize - } - }) -} diff --git a/vendor/maunium.net/go/tview/treeview.go b/vendor/maunium.net/go/tview/treeview.go deleted file mode 100644 index 1b0af21..0000000 --- a/vendor/maunium.net/go/tview/treeview.go +++ /dev/null @@ -1,684 +0,0 @@ -package tview - -import ( - "maunium.net/go/tcell" -) - -// Tree navigation events. -const ( - treeNone int = iota - treeHome - treeEnd - treeUp - treeDown - treePageUp - treePageDown -) - -// TreeNode represents one node in a tree view. -type TreeNode struct { - // The reference object. - reference interface{} - - // This node's child nodes. - children []*TreeNode - - // The item's text. - text string - - // The text color. - color tcell.Color - - // Whether or not this node can be selected. - selectable bool - - // Whether or not this node's children should be displayed. - expanded bool - - // The additional horizontal indent of this node's text. - indent int - - // An optional function which is called when the user selects this node. - selected func() - - // Temporary member variables. - parent *TreeNode // The parent node (nil for the root). - level int // The hierarchy level (0 for the root, 1 for its children, and so on). - graphicsX int // The x-coordinate of the left-most graphics rune. - textX int // The x-coordinate of the first rune of the text. -} - -// NewTreeNode returns a new tree node. -func NewTreeNode(text string) *TreeNode { - return &TreeNode{ - text: text, - color: Styles.PrimaryTextColor, - indent: 2, - expanded: true, - selectable: true, - } -} - -// Walk traverses this node's subtree in depth-first, pre-order (NLR) order and -// calls the provided callback function on each traversed node (which includes -// this node) with the traversed node and its parent node (nil for this node). -// The callback returns whether traversal should continue with the traversed -// node's child nodes (true) or not recurse any deeper (false). -func (n *TreeNode) Walk(callback func(node, parent *TreeNode) bool) *TreeNode { - n.parent = nil - nodes := []*TreeNode{n} - for len(nodes) > 0 { - // Pop the top node and process it. - node := nodes[len(nodes)-1] - nodes = nodes[:len(nodes)-1] - if !callback(node, node.parent) { - // Don't add any children. - continue - } - - // Add children in reverse order. - for index := len(node.children) - 1; index >= 0; index-- { - node.children[index].parent = node - nodes = append(nodes, node.children[index]) - } - } - - return n -} - -// SetReference allows you to store a reference of any type in this node. This -// will allow you to establish a mapping between the TreeView hierarchy and your -// internal tree structure. -func (n *TreeNode) SetReference(reference interface{}) *TreeNode { - n.reference = reference - return n -} - -// GetReference returns this node's reference object. -func (n *TreeNode) GetReference() interface{} { - return n.reference -} - -// SetChildren sets this node's child nodes. -func (n *TreeNode) SetChildren(childNodes []*TreeNode) *TreeNode { - n.children = childNodes - return n -} - -// GetChildren returns this node's children. -func (n *TreeNode) GetChildren() []*TreeNode { - return n.children -} - -// ClearChildren removes all child nodes from this node. -func (n *TreeNode) ClearChildren() *TreeNode { - n.children = nil - return n -} - -// AddChild adds a new child node to this node. -func (n *TreeNode) AddChild(node *TreeNode) *TreeNode { - n.children = append(n.children, node) - return n -} - -// SetSelectable sets a flag indicating whether this node can be selected by -// the user. -func (n *TreeNode) SetSelectable(selectable bool) *TreeNode { - n.selectable = selectable - return n -} - -// SetSelectedFunc sets a function which is called when the user selects this -// node by hitting Enter when it is selected. -func (n *TreeNode) SetSelectedFunc(handler func()) *TreeNode { - n.selected = handler - return n -} - -// SetExpanded sets whether or not this node's child nodes should be displayed. -func (n *TreeNode) SetExpanded(expanded bool) *TreeNode { - n.expanded = expanded - return n -} - -// Expand makes the child nodes of this node appear. -func (n *TreeNode) Expand() *TreeNode { - n.expanded = true - return n -} - -// Collapse makes the child nodes of this node disappear. -func (n *TreeNode) Collapse() *TreeNode { - n.expanded = false - return n -} - -// ExpandAll expands this node and all descendent nodes. -func (n *TreeNode) ExpandAll() *TreeNode { - n.Walk(func(node, parent *TreeNode) bool { - node.expanded = true - return true - }) - return n -} - -// CollapseAll collapses this node and all descendent nodes. -func (n *TreeNode) CollapseAll() *TreeNode { - n.Walk(func(node, parent *TreeNode) bool { - n.expanded = false - return true - }) - return n -} - -// IsExpanded returns whether the child nodes of this node are visible. -func (n *TreeNode) IsExpanded() bool { - return n.expanded -} - -// SetText sets the node's text which is displayed. -func (n *TreeNode) SetText(text string) *TreeNode { - n.text = text - return n -} - -// SetColor sets the node's text color. -func (n *TreeNode) SetColor(color tcell.Color) *TreeNode { - n.color = color - return n -} - -// SetIndent sets an additional indentation for this node's text. A value of 0 -// keeps the text as far left as possible with a minimum of line graphics. Any -// value greater than that moves the text to the right. -func (n *TreeNode) SetIndent(indent int) *TreeNode { - n.indent = indent - return n -} - -// TreeView displays tree structures. A tree consists of nodes (TreeNode -// objects) where each node has zero or more child nodes and exactly one parent -// node (except for the root node which has no parent node). -// -// The SetRoot() function is used to specify the root of the tree. Other nodes -// are added locally to the root node or any of its descendents. See the -// TreeNode documentation for details on node attributes. (You can use -// SetReference() to store a reference to nodes of your own tree structure.) -// -// Nodes can be selected by calling SetCurrentNode(). The user can navigate the -// selection or the tree by using the following keys: -// -// - j, down arrow, right arrow: Move (the selection) down by one node. -// - k, up arrow, left arrow: Move (the selection) up by one node. -// - g, home: Move (the selection) to the top. -// - G, end: Move (the selection) to the bottom. -// - Ctrl-F, page down: Move (the selection) down by one page. -// - Ctrl-B, page up: Move (the selection) up by one page. -// -// Selected nodes can trigger the "selected" callback when the user hits Enter. -// -// The root node corresponds to level 0, its children correspond to level 1, -// their children to level 2, and so on. Per default, the first level that is -// displayed is 0, i.e. the root node. You can call SetTopLevel() to hide -// levels. -// -// If graphics are turned on (see SetGraphics()), lines indicate the tree's -// hierarchy. Alternative (or additionally), you can set different prefixes -// using SetPrefixes() for different levels, for example to display hierarchical -// bullet point lists. -// -// See https://github.com/rivo/tview/wiki/TreeView for an example. -type TreeView struct { - *Box - - // The root node. - root *TreeNode - - // The currently selected node or nil if no node is selected. - currentNode *TreeNode - - // The movement to be performed during the call to Draw(), one of the - // constants defined above. - movement int - - // The top hierarchical level shown. (0 corresponds to the root level.) - topLevel int - - // Strings drawn before the nodes, based on their level. - prefixes []string - - // Vertical scroll offset. - offsetY int - - // If set to true, all node texts will be aligned horizontally. - align bool - - // If set to true, the tree structure is drawn using lines. - graphics bool - - // The color of the lines. - graphicsColor tcell.Color - - // An optional function which is called when the user has navigated to a new - // tree node. - changed func(node *TreeNode) - - // An optional function which is called when a tree item was selected. - selected func(node *TreeNode) - - // The visible nodes, top-down, as set by process(). - nodes []*TreeNode -} - -// NewTreeView returns a new tree view. -func NewTreeView() *TreeView { - return &TreeView{ - Box: NewBox(), - graphics: true, - graphicsColor: Styles.GraphicsColor, - } -} - -// SetRoot sets the root node of the tree. -func (t *TreeView) SetRoot(root *TreeNode) *TreeView { - t.root = root - return t -} - -// GetRoot returns the root node of the tree. If no such node was previously -// set, nil is returned. -func (t *TreeView) GetRoot() *TreeNode { - return t.root -} - -// SetCurrentNode sets the currently selected node. Provide nil to clear all -// selections. Selected nodes must be visible and selectable, or else the -// selection will be changed to the top-most selectable and visible node. -// -// This function does NOT trigger the "changed" callback. -func (t *TreeView) SetCurrentNode(node *TreeNode) *TreeView { - t.currentNode = node - return t -} - -// GetCurrentNode returns the currently selected node or nil of no node is -// currently selected. -func (t *TreeView) GetCurrentNode() *TreeNode { - return t.currentNode -} - -// SetTopLevel sets the first tree level that is visible with 0 referring to the -// root, 1 to the root's child nodes, and so on. Nodes above the top level are -// not displayed. -func (t *TreeView) SetTopLevel(topLevel int) *TreeView { - t.topLevel = topLevel - return t -} - -// SetPrefixes defines the strings drawn before the nodes' texts. This is a -// slice of strings where each element corresponds to a node's hierarchy level, -// i.e. 0 for the root, 1 for the root's children, and so on (levels will -// cycle). -// -// For example, to display a hierarchical list with bullet points: -// -// treeView.SetGraphics(false). -// SetPrefixes([]string{"* ", "- ", "x "}) -func (t *TreeView) SetPrefixes(prefixes []string) *TreeView { - t.prefixes = prefixes - return t -} - -// SetAlign controls the horizontal alignment of the node texts. If set to true, -// all texts except that of top-level nodes will be placed in the same column. -// If set to false, they will indent with the hierarchy. -func (t *TreeView) SetAlign(align bool) *TreeView { - t.align = align - return t -} - -// SetGraphics sets a flag which determines whether or not line graphics are -// drawn to illustrate the tree's hierarchy. -func (t *TreeView) SetGraphics(showGraphics bool) *TreeView { - t.graphics = showGraphics - return t -} - -// SetGraphicsColor sets the colors of the lines used to draw the tree structure. -func (t *TreeView) SetGraphicsColor(color tcell.Color) *TreeView { - t.graphicsColor = color - return t -} - -// SetChangedFunc sets the function which is called when the user navigates to -// a new tree node. -func (t *TreeView) SetChangedFunc(handler func(node *TreeNode)) *TreeView { - t.changed = handler - return t -} - -// SetSelectedFunc sets the function which is called when the user selects a -// node by pressing Enter on the current selection. -func (t *TreeView) SetSelectedFunc(handler func(node *TreeNode)) *TreeView { - t.selected = handler - return t -} - -// process builds the visible tree, populates the "nodes" slice, and processes -// pending selection actions. -func (t *TreeView) process() { - _, _, _, height := t.GetInnerRect() - - // Determine visible nodes and their placement. - var graphicsOffset, maxTextX int - t.nodes = nil - selectedIndex := -1 - topLevelGraphicsX := -1 - if t.graphics { - graphicsOffset = 1 - } - t.root.Walk(func(node, parent *TreeNode) bool { - // Set node attributes. - node.parent = parent - if parent == nil { - node.level = 0 - node.graphicsX = 0 - node.textX = 0 - } else { - node.level = parent.level + 1 - node.graphicsX = parent.textX - node.textX = node.graphicsX + graphicsOffset + node.indent - } - if !t.graphics && t.align { - // Without graphics, we align nodes on the first column. - node.textX = 0 - } - if node.level == t.topLevel { - // No graphics for top level nodes. - node.graphicsX = 0 - node.textX = 0 - } - if node.textX > maxTextX { - maxTextX = node.textX - } - if node == t.currentNode && node.selectable { - selectedIndex = len(t.nodes) - } - - // Maybe we want to skip this level. - if t.topLevel == node.level && (topLevelGraphicsX < 0 || node.graphicsX < topLevelGraphicsX) { - topLevelGraphicsX = node.graphicsX - } - - // Add and recurse (if desired). - if node.level >= t.topLevel { - t.nodes = append(t.nodes, node) - } - return node.expanded - }) - - // Post-process positions. - for _, node := range t.nodes { - // If text must align, we correct the positions. - if t.align && node.level > t.topLevel { - node.textX = maxTextX - } - - // If we skipped levels, shift to the left. - if topLevelGraphicsX > 0 { - node.graphicsX -= topLevelGraphicsX - node.textX -= topLevelGraphicsX - } - } - - // Process selection. (Also trigger events if necessary.) - if selectedIndex >= 0 { - // Move the selection. - newSelectedIndex := selectedIndex - MovementSwitch: - switch t.movement { - case treeUp: - for newSelectedIndex > 0 { - newSelectedIndex-- - if t.nodes[newSelectedIndex].selectable { - break MovementSwitch - } - } - newSelectedIndex = selectedIndex - case treeDown: - for newSelectedIndex < len(t.nodes)-1 { - newSelectedIndex++ - if t.nodes[newSelectedIndex].selectable { - break MovementSwitch - } - } - newSelectedIndex = selectedIndex - case treeHome: - for newSelectedIndex = 0; newSelectedIndex < len(t.nodes); newSelectedIndex++ { - if t.nodes[newSelectedIndex].selectable { - break MovementSwitch - } - } - newSelectedIndex = selectedIndex - case treeEnd: - for newSelectedIndex = len(t.nodes) - 1; newSelectedIndex >= 0; newSelectedIndex-- { - if t.nodes[newSelectedIndex].selectable { - break MovementSwitch - } - } - newSelectedIndex = selectedIndex - case treePageUp: - if newSelectedIndex+height < len(t.nodes) { - newSelectedIndex += height - } else { - newSelectedIndex = len(t.nodes) - 1 - } - for ; newSelectedIndex < len(t.nodes); newSelectedIndex++ { - if t.nodes[newSelectedIndex].selectable { - break MovementSwitch - } - } - newSelectedIndex = selectedIndex - case treePageDown: - if newSelectedIndex >= height { - newSelectedIndex -= height - } else { - newSelectedIndex = 0 - } - for ; newSelectedIndex >= 0; newSelectedIndex-- { - if t.nodes[newSelectedIndex].selectable { - break MovementSwitch - } - } - newSelectedIndex = selectedIndex - } - t.currentNode = t.nodes[newSelectedIndex] - if newSelectedIndex != selectedIndex { - t.movement = treeNone - if t.changed != nil { - t.changed(t.currentNode) - } - } - selectedIndex = newSelectedIndex - - // Move selection into viewport. - if selectedIndex-t.offsetY >= height { - t.offsetY = selectedIndex - height + 1 - } - if selectedIndex < t.offsetY { - t.offsetY = selectedIndex - } - } else { - // If selection is not visible or selectable, select the first candidate. - if t.currentNode != nil { - for index, node := range t.nodes { - if node.selectable { - selectedIndex = index - t.currentNode = node - break - } - } - } - if selectedIndex < 0 { - t.currentNode = nil - } - } -} - -// Draw draws this primitive onto the screen. -func (t *TreeView) Draw(screen tcell.Screen) { - t.Box.Draw(screen) - if t.root == nil { - return - } - - // Build the tree if necessary. - if t.nodes == nil { - t.process() - } - defer func() { - t.nodes = nil // Rebuild during next call to Draw() - }() - - // Scroll the tree. - x, y, width, height := t.GetInnerRect() - switch t.movement { - case treeUp: - t.offsetY-- - case treeDown: - t.offsetY++ - case treeHome: - t.offsetY = 0 - case treeEnd: - t.offsetY = len(t.nodes) - case treePageUp: - t.offsetY -= height - case treePageDown: - t.offsetY += height - } - t.movement = treeNone - - // Fix invalid offsets. - if t.offsetY >= len(t.nodes)-height { - t.offsetY = len(t.nodes) - height - } - if t.offsetY < 0 { - t.offsetY = 0 - } - - // Draw the tree. - posY := y - lineStyle := tcell.StyleDefault.Background(t.backgroundColor).Foreground(t.graphicsColor) - for index, node := range t.nodes { - // Skip invisible parts. - if posY >= y+height+1 { - break - } - if index < t.offsetY { - continue - } - - // Draw the graphics. - if t.graphics { - // Draw ancestor branches. - ancestor := node.parent - for ancestor != nil && ancestor.parent != nil && ancestor.parent.level >= t.topLevel { - if ancestor.graphicsX >= width { - continue - } - - // Draw a branch if this ancestor is not a last child. - if ancestor.parent.children[len(ancestor.parent.children)-1] != ancestor { - if posY-1 >= y && ancestor.textX > ancestor.graphicsX { - PrintJoinedSemigraphics(screen, x+ancestor.graphicsX, posY-1, Borders.Vertical, t.graphicsColor) - } - if posY < y+height { - screen.SetContent(x+ancestor.graphicsX, posY, Borders.Vertical, nil, lineStyle) - } - } - ancestor = ancestor.parent - } - - if node.textX > node.graphicsX && node.graphicsX < width { - // Connect to the node above. - if posY-1 >= y && t.nodes[index-1].graphicsX <= node.graphicsX && t.nodes[index-1].textX > node.graphicsX { - PrintJoinedSemigraphics(screen, x+node.graphicsX, posY-1, Borders.TopLeft, t.graphicsColor) - } - - // Join this node. - if posY < y+height { - screen.SetContent(x+node.graphicsX, posY, Borders.BottomLeft, nil, lineStyle) - for pos := node.graphicsX + 1; pos < node.textX && pos < width; pos++ { - screen.SetContent(x+pos, posY, Borders.Horizontal, nil, lineStyle) - } - } - } - } - - // Draw the prefix and the text. - if node.textX < width && posY < y+height { - // Prefix. - var prefixWidth int - if len(t.prefixes) > 0 { - _, prefixWidth = Print(screen, t.prefixes[(node.level-t.topLevel)%len(t.prefixes)], x+node.textX, posY, width-node.textX, AlignLeft, node.color) - } - - // Text. - if node.textX+prefixWidth < width { - style := tcell.StyleDefault.Foreground(node.color) - if node == t.currentNode { - style = tcell.StyleDefault.Background(node.color).Foreground(t.backgroundColor) - } - printWithStyle(screen, node.text, x+node.textX+prefixWidth, posY, width-node.textX-prefixWidth, AlignLeft, style) - } - } - - // Advance. - posY++ - } -} - -// InputHandler returns the handler for this primitive. -func (t *TreeView) InputHandler() func(event *tcell.EventKey, setFocus func(p Primitive)) { - return t.WrapInputHandler(func(event *tcell.EventKey, setFocus func(p Primitive)) { - // Because the tree is flattened into a list only at drawing time, we also - // postpone the (selection) movement to drawing time. - switch key := event.Key(); key { - case tcell.KeyTab, tcell.KeyDown, tcell.KeyRight: - t.movement = treeDown - case tcell.KeyBacktab, tcell.KeyUp, tcell.KeyLeft: - t.movement = treeUp - case tcell.KeyHome: - t.movement = treeHome - case tcell.KeyEnd: - t.movement = treeEnd - case tcell.KeyPgDn, tcell.KeyCtrlF: - t.movement = treePageDown - case tcell.KeyPgUp, tcell.KeyCtrlB: - t.movement = treePageUp - case tcell.KeyRune: - switch event.Rune() { - case 'g': - t.movement = treeHome - case 'G': - t.movement = treeEnd - case 'j': - t.movement = treeDown - case 'k': - t.movement = treeUp - } - case tcell.KeyEnter: - if t.currentNode != nil { - if t.selected != nil { - t.selected(t.currentNode) - } - if t.currentNode.selected != nil { - t.currentNode.selected() - } - } - } - - t.process() - }) -} diff --git a/vendor/maunium.net/go/tview/tview.gif b/vendor/maunium.net/go/tview/tview.gif Binary files differdeleted file mode 100644 index 0583d7b..0000000 --- a/vendor/maunium.net/go/tview/tview.gif +++ /dev/null diff --git a/vendor/maunium.net/go/tview/util.go b/vendor/maunium.net/go/tview/util.go deleted file mode 100644 index e408b18..0000000 --- a/vendor/maunium.net/go/tview/util.go +++ /dev/null @@ -1,605 +0,0 @@ -package tview - -import ( - "math" - "regexp" - "strconv" - "unicode" - - "maunium.net/go/tcell" - runewidth "github.com/mattn/go-runewidth" -) - -// Text alignment within a box. -const ( - AlignLeft = iota - AlignCenter - AlignRight -) - -// Common regular expressions. -var ( - colorPattern = regexp.MustCompile(`\[([a-zA-Z]+|#[0-9a-zA-Z]{6}|\-)?(:([a-zA-Z]+|#[0-9a-zA-Z]{6}|\-)?(:([lbdru]+|\-)?)?)?\]`) - regionPattern = regexp.MustCompile(`\["([a-zA-Z0-9_,;: \-\.]*)"\]`) - escapePattern = regexp.MustCompile(`\[([a-zA-Z0-9_,;: \-\."#]+)\[(\[*)\]`) - nonEscapePattern = regexp.MustCompile(`(\[[a-zA-Z0-9_,;: \-\."#]+\[*)\]`) - boundaryPattern = regexp.MustCompile(`(([[:punct:]]|\n)[ \t\f\r]*|(\s+))`) - spacePattern = regexp.MustCompile(`\s+`) -) - -// Positions of substrings in regular expressions. -const ( - colorForegroundPos = 1 - colorBackgroundPos = 3 - colorFlagPos = 5 -) - -// Predefined InputField acceptance functions. -var ( - // InputFieldInteger accepts integers. - InputFieldInteger func(text string, ch rune) bool - - // InputFieldFloat accepts floating-point numbers. - InputFieldFloat func(text string, ch rune) bool - - // InputFieldMaxLength returns an input field accept handler which accepts - // input strings up to a given length. Use it like this: - // - // inputField.SetAcceptanceFunc(InputFieldMaxLength(10)) // Accept up to 10 characters. - InputFieldMaxLength func(maxLength int) func(text string, ch rune) bool -) - -// Package initialization. -func init() { - // Initialize the predefined input field handlers. - InputFieldInteger = func(text string, ch rune) bool { - if text == "-" { - return true - } - _, err := strconv.Atoi(text) - return err == nil - } - InputFieldFloat = func(text string, ch rune) bool { - if text == "-" || text == "." || text == "-." { - return true - } - _, err := strconv.ParseFloat(text, 64) - return err == nil - } - InputFieldMaxLength = func(maxLength int) func(text string, ch rune) bool { - return func(text string, ch rune) bool { - return len([]rune(text)) <= maxLength - } - } -} - -// styleFromTag takes the given style, defined by a foreground color (fgColor), -// a background color (bgColor), and style attributes, and modifies it based on -// the substrings (tagSubstrings) extracted by the regular expression for color -// tags. The new colors and attributes are returned where empty strings mean -// "don't modify" and a dash ("-") means "reset to default". -func styleFromTag(fgColor, bgColor, attributes string, tagSubstrings []string) (newFgColor, newBgColor, newAttributes string) { - if tagSubstrings[colorForegroundPos] != "" { - color := tagSubstrings[colorForegroundPos] - if color == "-" { - fgColor = "-" - } else if color != "" { - fgColor = color - } - } - - if tagSubstrings[colorBackgroundPos-1] != "" { - color := tagSubstrings[colorBackgroundPos] - if color == "-" { - bgColor = "-" - } else if color != "" { - bgColor = color - } - } - - if tagSubstrings[colorFlagPos-1] != "" { - flags := tagSubstrings[colorFlagPos] - if flags == "-" { - attributes = "-" - } else if flags != "" { - attributes = flags - } - } - - return fgColor, bgColor, attributes -} - -// overlayStyle mixes a background color with a foreground color (fgColor), -// a (possibly new) background color (bgColor), and style attributes, and -// returns the resulting style. For a definition of the colors and attributes, -// see styleFromTag(). Reset instructions cause the corresponding part of the -// default style to be used. -func overlayStyle(background tcell.Color, defaultStyle tcell.Style, fgColor, bgColor, attributes string) tcell.Style { - defFg, defBg, defAttr := defaultStyle.Decompose() - style := defaultStyle.Background(background) - - style = style.Foreground(defFg) - if fgColor != "" { - style = style.Foreground(tcell.GetColor(fgColor)) - } - - if bgColor == "-" || bgColor == "" && defBg != tcell.ColorDefault { - style = style.Background(defBg) - } else if bgColor != "" { - style = style.Background(tcell.GetColor(bgColor)) - } - - if attributes == "-" { - style = style.Bold(defAttr&tcell.AttrBold > 0) - style = style.Blink(defAttr&tcell.AttrBlink > 0) - style = style.Reverse(defAttr&tcell.AttrReverse > 0) - style = style.Underline(defAttr&tcell.AttrUnderline > 0) - style = style.Dim(defAttr&tcell.AttrDim > 0) - } else if attributes != "" { - style = style.Normal() - for _, flag := range attributes { - switch flag { - case 'l': - style = style.Blink(true) - case 'b': - style = style.Bold(true) - case 'd': - style = style.Dim(true) - case 'r': - style = style.Reverse(true) - case 'u': - style = style.Underline(true) - } - } - } - - return style -} - -// decomposeString returns information about a string which may contain color -// tags. It returns the indices of the color tags (as returned by -// re.FindAllStringIndex()), the color tags themselves (as returned by -// re.FindAllStringSubmatch()), the indices of an escaped tags, the string -// stripped by any color tags and escaped, and the screen width of the stripped -// string. -func decomposeString(text string) (colorIndices [][]int, colors [][]string, escapeIndices [][]int, stripped string, width int) { - // Get positions of color and escape tags. - colorIndices = colorPattern.FindAllStringIndex(text, -1) - colors = colorPattern.FindAllStringSubmatch(text, -1) - escapeIndices = escapePattern.FindAllStringIndex(text, -1) - - // Because the color pattern detects empty tags, we need to filter them out. - for i := len(colorIndices) - 1; i >= 0; i-- { - if colorIndices[i][1]-colorIndices[i][0] == 2 { - colorIndices = append(colorIndices[:i], colorIndices[i+1:]...) - colors = append(colors[:i], colors[i+1:]...) - } - } - - // Remove the color tags from the original string. - var from int - buf := make([]byte, 0, len(text)) - for _, indices := range colorIndices { - buf = append(buf, []byte(text[from:indices[0]])...) - from = indices[1] - } - buf = append(buf, text[from:]...) - - // Escape string. - stripped = string(escapePattern.ReplaceAll(buf, []byte("[$1$2]"))) - - // Get the width of the stripped string. - width = runewidth.StringWidth(stripped) - - return -} - -// Print prints text onto the screen into the given box at (x,y,maxWidth,1), -// not exceeding that box. "align" is one of AlignLeft, AlignCenter, or -// AlignRight. The screen's background color will not be changed. -// -// You can change the colors and text styles mid-text by inserting a color tag. -// See the package description for details. -// -// Returns the number of actual bytes of the text printed (including color tags) -// and the actual width used for the printed runes. -func Print(screen tcell.Screen, text string, x, y, maxWidth, align int, color tcell.Color) (int, int) { - return printWithStyle(screen, text, x, y, maxWidth, align, tcell.StyleDefault.Foreground(color)) -} - -// printWithStyle works like Print() but it takes a style instead of just a -// foreground color. -func printWithStyle(screen tcell.Screen, text string, x, y, maxWidth, align int, style tcell.Style) (int, int) { - if maxWidth <= 0 || len(text) == 0 { - return 0, 0 - } - - // Decompose the text. - colorIndices, colors, escapeIndices, strippedText, strippedWidth := decomposeString(text) - - // We want to reduce all alignments to AlignLeft. - if align == AlignRight { - if strippedWidth <= maxWidth { - // There's enough space for the entire text. - return printWithStyle(screen, text, x+maxWidth-strippedWidth, y, maxWidth, AlignLeft, style) - } - // Trim characters off the beginning. - var ( - bytes, width, colorPos, escapePos, tagOffset int - foregroundColor, backgroundColor, attributes string - ) - _, originalBackground, _ := style.Decompose() - iterateString(strippedText, func(main rune, comb []rune, textPos, textWidth, screenPos, screenWidth int) bool { - // Update color/escape tag offset and style. - if colorPos < len(colorIndices) && textPos+tagOffset >= colorIndices[colorPos][0] && textPos+tagOffset < colorIndices[colorPos][1] { - foregroundColor, backgroundColor, attributes = styleFromTag(foregroundColor, backgroundColor, attributes, colors[colorPos]) - style = overlayStyle(originalBackground, style, foregroundColor, backgroundColor, attributes) - tagOffset += colorIndices[colorPos][1] - colorIndices[colorPos][0] - colorPos++ - } - if escapePos < len(escapeIndices) && textPos+tagOffset >= escapeIndices[escapePos][0] && textPos+tagOffset < escapeIndices[escapePos][1] { - tagOffset++ - escapePos++ - } - if strippedWidth-screenPos < maxWidth { - // We chopped off enough. - if escapePos > 0 && textPos+tagOffset-1 >= escapeIndices[escapePos-1][0] && textPos+tagOffset-1 < escapeIndices[escapePos-1][1] { - // Unescape open escape sequences. - escapeCharPos := escapeIndices[escapePos-1][1] - 2 - text = text[:escapeCharPos] + text[escapeCharPos+1:] - } - // Print and return. - bytes, width = printWithStyle(screen, text[textPos+tagOffset:], x, y, maxWidth, AlignLeft, style) - return true - } - return false - }) - return bytes, width - } else if align == AlignCenter { - if strippedWidth == maxWidth { - // Use the exact space. - return printWithStyle(screen, text, x, y, maxWidth, AlignLeft, style) - } else if strippedWidth < maxWidth { - // We have more space than we need. - half := (maxWidth - strippedWidth) / 2 - return printWithStyle(screen, text, x+half, y, maxWidth-half, AlignLeft, style) - } else { - // Chop off runes until we have a perfect fit. - var choppedLeft, choppedRight, leftIndex, rightIndex int - rightIndex = len(strippedText) - for rightIndex-1 > leftIndex && strippedWidth-choppedLeft-choppedRight > maxWidth { - if choppedLeft < choppedRight { - // Iterate on the left by one character. - iterateString(strippedText[leftIndex:], func(main rune, comb []rune, textPos, textWidth, screenPos, screenWidth int) bool { - choppedLeft += screenWidth - leftIndex += textWidth - return true - }) - } else { - // Iterate on the right by one character. - iterateStringReverse(strippedText[leftIndex:rightIndex], func(main rune, comb []rune, textPos, textWidth, screenPos, screenWidth int) bool { - choppedRight += screenWidth - rightIndex -= textWidth - return true - }) - } - } - - // Add tag offsets and determine start style. - var ( - colorPos, escapePos, tagOffset int - foregroundColor, backgroundColor, attributes string - ) - _, originalBackground, _ := style.Decompose() - for index := range strippedText { - // We only need the offset of the left index. - if index > leftIndex { - // We're done. - if escapePos > 0 && leftIndex+tagOffset-1 >= escapeIndices[escapePos-1][0] && leftIndex+tagOffset-1 < escapeIndices[escapePos-1][1] { - // Unescape open escape sequences. - escapeCharPos := escapeIndices[escapePos-1][1] - 2 - text = text[:escapeCharPos] + text[escapeCharPos+1:] - } - break - } - - // Update color/escape tag offset. - if colorPos < len(colorIndices) && index+tagOffset >= colorIndices[colorPos][0] && index+tagOffset < colorIndices[colorPos][1] { - if index <= leftIndex { - foregroundColor, backgroundColor, attributes = styleFromTag(foregroundColor, backgroundColor, attributes, colors[colorPos]) - style = overlayStyle(originalBackground, style, foregroundColor, backgroundColor, attributes) - } - tagOffset += colorIndices[colorPos][1] - colorIndices[colorPos][0] - colorPos++ - } - if escapePos < len(escapeIndices) && index+tagOffset >= escapeIndices[escapePos][0] && index+tagOffset < escapeIndices[escapePos][1] { - tagOffset++ - escapePos++ - } - } - return printWithStyle(screen, text[leftIndex+tagOffset:], x, y, maxWidth, AlignLeft, style) - } - } - - // Draw text. - var ( - drawn, drawnWidth, colorPos, escapePos, tagOffset int - foregroundColor, backgroundColor, attributes string - ) - iterateString(strippedText, func(main rune, comb []rune, textPos, length, screenPos, screenWidth int) bool { - // Only continue if there is still space. - if drawnWidth+screenWidth > maxWidth { - return true - } - - // Handle color tags. - if colorPos < len(colorIndices) && textPos+tagOffset >= colorIndices[colorPos][0] && textPos+tagOffset < colorIndices[colorPos][1] { - foregroundColor, backgroundColor, attributes = styleFromTag(foregroundColor, backgroundColor, attributes, colors[colorPos]) - tagOffset += colorIndices[colorPos][1] - colorIndices[colorPos][0] - colorPos++ - } - - // Handle scape tags. - if escapePos < len(escapeIndices) && textPos+tagOffset >= escapeIndices[escapePos][0] && textPos+tagOffset < escapeIndices[escapePos][1] { - if textPos+tagOffset == escapeIndices[escapePos][1]-2 { - tagOffset++ - escapePos++ - } - } - - // Print the rune sequence. - finalX := x + drawnWidth - _, _, finalStyle, _ := screen.GetContent(finalX, y) - _, background, _ := finalStyle.Decompose() - finalStyle = overlayStyle(background, style, foregroundColor, backgroundColor, attributes) - for offset := screenWidth - 1; offset >= 0; offset-- { - // To avoid undesired effects, we populate all cells. - if offset == 0 { - screen.SetContent(finalX+offset, y, main, comb, finalStyle) - } else { - screen.SetContent(finalX+offset, y, ' ', nil, finalStyle) - } - } - - // Advance. - drawn += length - drawnWidth += screenWidth - - return false - }) - - return drawn + tagOffset + len(escapeIndices), drawnWidth -} - -// PrintSimple prints white text to the screen at the given position. -func PrintSimple(screen tcell.Screen, text string, x, y int) { - Print(screen, text, x, y, math.MaxInt32, AlignLeft, Styles.PrimaryTextColor) -} - -// StringWidth returns the width of the given string needed to print it on -// screen. The text may contain color tags which are not counted. -func StringWidth(text string) int { - _, _, _, _, width := decomposeString(text) - return width -} - -// WordWrap splits a text such that each resulting line does not exceed the -// given screen width. Possible split points are after any punctuation or -// whitespace. Whitespace after split points will be dropped. -// -// This function considers color tags to have no width. -// -// Text is always split at newline characters ('\n'). -func WordWrap(text string, width int) (lines []string) { - colorTagIndices, _, escapeIndices, strippedText, _ := decomposeString(text) - - // Find candidate breakpoints. - breakpoints := boundaryPattern.FindAllStringSubmatchIndex(strippedText, -1) - // Results in one entry for each candidate. Each entry is an array a of - // indices into strippedText where a[6] < 0 for newline/punctuation matches - // and a[4] < 0 for whitespace matches. - - // Process stripped text one character at a time. - var ( - colorPos, escapePos, breakpointPos, tagOffset int - lastBreakpoint, lastContinuation, currentLineStart int - lineWidth, continuationWidth int - newlineBreakpoint bool - ) - unescape := func(substr string, startIndex int) string { - // A helper function to unescape escaped tags. - for index := escapePos; index >= 0; index-- { - if index < len(escapeIndices) && startIndex > escapeIndices[index][0] && startIndex < escapeIndices[index][1]-1 { - pos := escapeIndices[index][1] - 2 - startIndex - return substr[:pos] + substr[pos+1:] - } - } - return substr - } - iterateString(strippedText, func(main rune, comb []rune, textPos, textWidth, screenPos, screenWidth int) bool { - // Handle colour tags. - if colorPos < len(colorTagIndices) && textPos+tagOffset >= colorTagIndices[colorPos][0] && textPos+tagOffset < colorTagIndices[colorPos][1] { - tagOffset += colorTagIndices[colorPos][1] - colorTagIndices[colorPos][0] - colorPos++ - } - - // Handle escape tags. - if escapePos < len(escapeIndices) && textPos+tagOffset == escapeIndices[escapePos][1]-2 { - tagOffset++ - escapePos++ - } - - // Check if a break is warranted. - afterContinuation := lastContinuation > 0 && textPos+tagOffset >= lastContinuation - noBreakpoint := lastContinuation == 0 - beyondWidth := lineWidth > 0 && lineWidth > width - if beyondWidth && noBreakpoint { - // We need a hard break without a breakpoint. - lines = append(lines, unescape(text[currentLineStart:textPos+tagOffset], currentLineStart)) - currentLineStart = textPos + tagOffset - lineWidth = continuationWidth - } else if afterContinuation && (beyondWidth || newlineBreakpoint) { - // Break at last breakpoint or at newline. - lines = append(lines, unescape(text[currentLineStart:lastBreakpoint], currentLineStart)) - currentLineStart = lastContinuation - lineWidth = continuationWidth - lastBreakpoint, lastContinuation, newlineBreakpoint = 0, 0, false - } - - // Is this a breakpoint? - if breakpointPos < len(breakpoints) && textPos == breakpoints[breakpointPos][0] { - // Yes, it is. Set up breakpoint infos depending on its type. - lastBreakpoint = breakpoints[breakpointPos][0] + tagOffset - lastContinuation = breakpoints[breakpointPos][1] + tagOffset - newlineBreakpoint = main == '\n' - if breakpoints[breakpointPos][6] < 0 && !newlineBreakpoint { - lastBreakpoint++ // Don't skip punctuation. - } - breakpointPos++ - } - - // Once we hit the continuation point, we start buffering widths. - if textPos+tagOffset < lastContinuation { - continuationWidth = 0 - } - - lineWidth += screenWidth - continuationWidth += screenWidth - return false - }) - - // Flush the rest. - if currentLineStart < len(text) { - lines = append(lines, unescape(text[currentLineStart:], currentLineStart)) - } - - return -} - -// Escape escapes the given text such that color and/or region tags are not -// recognized and substituted by the print functions of this package. For -// example, to include a tag-like string in a box title or in a TextView: -// -// box.SetTitle(tview.Escape("[squarebrackets]")) -// fmt.Fprint(textView, tview.Escape(`["quoted"]`)) -func Escape(text string) string { - return nonEscapePattern.ReplaceAllString(text, "$1[]") -} - -// iterateString iterates through the given string one printed character at a -// time. For each such character, the callback function is called with the -// Unicode code points of the character (the first rune and any combining runes -// which may be nil if there aren't any), the starting position (in bytes) -// within the original string, its length in bytes, the screen position of the -// character, and the screen width of it. The iteration stops if the callback -// returns true. This function returns true if the iteration was stopped before -// the last character. -func iterateString(text string, callback func(main rune, comb []rune, textPos, textWidth, screenPos, screenWidth int) bool) bool { - var ( - runes []rune - lastZeroWidthJoiner bool - startIndex int - startPos int - pos int - ) - - // Helper function which invokes the callback. - flush := func(index int) bool { - var comb []rune - if len(runes) > 1 { - comb = runes[1:] - } - return callback(runes[0], comb, startIndex, index-startIndex, startPos, pos-startPos) - } - - for index, r := range text { - if unicode.In(r, unicode.Lm, unicode.M) || r == '\u200d' { - lastZeroWidthJoiner = r == '\u200d' - } else { - // We have a rune that's not a modifier. It could be the beginning of a - // new character. - if !lastZeroWidthJoiner { - if len(runes) > 0 { - // It is. Invoke callback. - if flush(index) { - return true // We're done. - } - // Reset rune store. - runes = runes[:0] - startIndex = index - startPos = pos - } - pos += runewidth.RuneWidth(r) - } else { - lastZeroWidthJoiner = false - } - } - runes = append(runes, r) - } - - // Flush any remaining runes. - if len(runes) > 0 { - flush(len(text)) - } - - return false -} - -// iterateStringReverse iterates through the given string in reverse, starting -// from the end of the string, one printed character at a time. For each such -// character, the callback function is called with the Unicode code points of -// the character (the first rune and any combining runes which may be nil if -// there aren't any), the starting position (in bytes) within the original -// string, its length in bytes, the screen position of the character, and the -// screen width of it. The iteration stops if the callback returns true. This -// function returns true if the iteration was stopped before the last character. -func iterateStringReverse(text string, callback func(main rune, comb []rune, textPos, textWidth, screenPos, screenWidth int) bool) bool { - type runePos struct { - r rune - pos int // The byte position of the rune in the original string. - width int // The screen width of the rune. - mod bool // Modifier or zero-width-joiner. - } - - // We use the following: - // len(text) >= number of runes in text. - - // Put all runes into a runePos slice in reverse. - runesReverse := make([]runePos, len(text)) - index := len(text) - 1 - for pos, ch := range text { - runesReverse[index].r = ch - runesReverse[index].pos = pos - runesReverse[index].width = runewidth.RuneWidth(ch) - runesReverse[index].mod = unicode.In(ch, unicode.Lm, unicode.M) || ch == '\u200d' - index-- - } - runesReverse = runesReverse[index+1:] - - // Parse reverse runes. - var screenWidth int - buffer := make([]rune, len(text)) // We fill this up from the back so it's forward again. - bufferPos := len(text) - stringWidth := runewidth.StringWidth(text) - for index, r := range runesReverse { - // Put this rune into the buffer. - bufferPos-- - buffer[bufferPos] = r.r - - // Do we need to flush the buffer? - if r.pos == 0 || !r.mod && runesReverse[index+1].r != '\u200d' { - // Yes, invoke callback. - var comb []rune - if len(text)-bufferPos > 1 { - comb = buffer[bufferPos+1:] - } - if callback(r.r, comb, r.pos, len(text)-r.pos, stringWidth-screenWidth, r.width) { - return true - } - screenWidth += r.width - bufferPos = len(text) - } - } - - return false -} |
