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Diffstat (limited to 'vendor/maunium.net/go/tcell/style.go')
| -rw-r--r-- | vendor/maunium.net/go/tcell/style.go | 138 |
1 files changed, 0 insertions, 138 deletions
diff --git a/vendor/maunium.net/go/tcell/style.go b/vendor/maunium.net/go/tcell/style.go deleted file mode 100644 index 0799a39..0000000 --- a/vendor/maunium.net/go/tcell/style.go +++ /dev/null @@ -1,138 +0,0 @@ -// Copyright 2015 The TCell Authors -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use file except in compliance with the License. -// You may obtain a copy of the license at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -package tcell - -// Style represents a complete text style, including both foreground -// and background color. We encode it in a 64-bit int for efficiency. -// The coding is (MSB): <7b flags><1b><24b fgcolor><7b attr><1b><24b bgcolor>. -// The <1b> is set true to indicate that the color is an RGB color, rather -// than a named index. -// -// This gives 24bit color options, if it ever becomes truly necessary. -// However, applications must not rely on this encoding. -// -// Note that not all terminals can display all colors or attributes, and -// many might have specific incompatibilities between specific attributes -// and color combinations. -// -// The intention is to extend styles to support paletting, in which case -// some flag bit(s) would be set, and the foreground and background colors -// would be replaced with a palette number and palette index. -// -// To use Style, just declare a variable of its type. -type Style int64 - -// StyleDefault represents a default style, based upon the context. -// It is the zero value. -const StyleDefault Style = 0 - -// styleFlags -- used internally for now. -const ( - styleBgSet = 1 << (iota + 57) - styleFgSet - stylePalette -) - -// Foreground returns a new style based on s, with the foreground color set -// as requested. ColorDefault can be used to select the global default. -func (s Style) Foreground(c Color) Style { - if c == ColorDefault { - return (s &^ (0x1ffffff00000000 | styleFgSet)) - } - return (s &^ Style(0x1ffffff00000000)) | - ((Style(c) & 0x1ffffff) << 32) | styleFgSet -} - -// Background returns a new style based on s, with the background color set -// as requested. ColorDefault can be used to select the global default. -func (s Style) Background(c Color) Style { - if c == ColorDefault { - return (s &^ (0x1ffffff | styleBgSet)) - } - return (s &^ (0x1ffffff)) | (Style(c) & 0x1ffffff) | styleBgSet -} - -// Decompose breaks a style up, returning the foreground, background, -// and other attributes. -func (s Style) Decompose() (fg Color, bg Color, attr AttrMask) { - if s&styleFgSet != 0 { - fg = Color(s>>32) & 0x1ffffff - } else { - fg = ColorDefault - } - if s&styleBgSet != 0 { - bg = Color(s & 0x1ffffff) - } else { - bg = ColorDefault - } - attr = AttrMask(s) & attrAll - - return fg, bg, attr -} - -func (s Style) setAttrs(attrs Style, on bool) Style { - if on { - return s | attrs - } - return s &^ attrs -} - -// Normal returns the style with all attributes disabled. -func (s Style) Normal() Style { - return s &^ Style(attrAll) -} - -// Bold returns a new style based on s, with the bold attribute set -// as requested. -func (s Style) Bold(on bool) Style { - return s.setAttrs(Style(AttrBold), on) -} - -// Italic returns a new style based on s, with the italic attribute set -// as requested. -func (s Style) Italic(on bool) Style { - return s.setAttrs(Style(AttrItalic), on) -} - -// Strikethrough returns a new style based on s, with the strikethrough attribute set -// as requested. -func (s Style) Strikethrough(on bool) Style { - return s.setAttrs(Style(AttrStrikethrough), on) -} - -// Blink returns a new style based on s, with the blink attribute set -// as requested. -func (s Style) Blink(on bool) Style { - return s.setAttrs(Style(AttrBlink), on) -} - -// Dim returns a new style based on s, with the dim attribute set -// as requested. -func (s Style) Dim(on bool) Style { - return s.setAttrs(Style(AttrDim), on) -} - -// Reverse returns a new style based on s, with the reverse attribute set -// as requested. (Reverse usually changes the foreground and background -// colors.) -func (s Style) Reverse(on bool) Style { - return s.setAttrs(Style(AttrReverse), on) -} - -// Underline returns a new style based on s, with the underline attribute set -// as requested. -func (s Style) Underline(on bool) Style { - return s.setAttrs(Style(AttrUnderline), on) -} |