diff options
Diffstat (limited to 'vendor/maunium.net/go/tview/pages.go')
| -rw-r--r-- | vendor/maunium.net/go/tview/pages.go | 257 |
1 files changed, 0 insertions, 257 deletions
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) - } -} |