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|
// Copyright 2023 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
import (
"fmt"
ic "image/color"
"strconv"
)
// Color represents a color. The low numeric values are the same as used
// by ECMA-48, and beyond that XTerm. A 24-bit RGB value may be used by
// adding in the ColorIsRGB flag. For Color names we use the W3C approved
// color names.
//
// We use a 64-bit integer to allow future expansion if we want to add an
// 8-bit alpha, while still leaving us some room for extra options.
//
// Note that on various terminals colors may be approximated however, or
// not supported at all. If no suitable representation for a color is known,
// the library will simply not set any color, deferring to whatever default
// attributes the terminal uses.
type Color uint64
const (
// ColorDefault is used to leave the Color unchanged from whatever
// system or terminal default may exist. It's also the zero value.
ColorDefault Color = 0
// ColorValid is used to indicate the color value is actually
// valid (initialized). This is useful to permit the zero value
// to be treated as the default.
ColorValid Color = 1 << 32
// ColorIsRGB is used to indicate that the numeric value is not
// a known color constant, but rather an RGB value. The lower
// order 3 bytes are RGB.
ColorIsRGB Color = 1 << 33
// ColorSpecial is a flag used to indicate that the values have
// special meaning, and live outside of the color space(s).
ColorSpecial Color = 1 << 34
)
// Note that the order of these options is important -- it follows the
// definitions used by ECMA and XTerm. Hence any further named colors
// must begin at a value not less than 256.
const (
ColorBlack = ColorValid + iota
ColorMaroon
ColorGreen
ColorOlive
ColorNavy
ColorPurple
ColorTeal
ColorSilver
ColorGray
ColorRed
ColorLime
ColorYellow
ColorBlue
ColorFuchsia
ColorAqua
ColorWhite
Color16
Color17
Color18
Color19
Color20
Color21
Color22
Color23
Color24
Color25
Color26
Color27
Color28
Color29
Color30
Color31
Color32
Color33
Color34
Color35
Color36
Color37
Color38
Color39
Color40
Color41
Color42
Color43
Color44
Color45
Color46
Color47
Color48
Color49
Color50
Color51
Color52
Color53
Color54
Color55
Color56
Color57
Color58
Color59
Color60
Color61
Color62
Color63
Color64
Color65
Color66
Color67
Color68
Color69
Color70
Color71
Color72
Color73
Color74
Color75
Color76
Color77
Color78
Color79
Color80
Color81
Color82
Color83
Color84
Color85
Color86
Color87
Color88
Color89
Color90
Color91
Color92
Color93
Color94
Color95
Color96
Color97
Color98
Color99
Color100
Color101
Color102
Color103
Color104
Color105
Color106
Color107
Color108
Color109
Color110
Color111
Color112
Color113
Color114
Color115
Color116
Color117
Color118
Color119
Color120
Color121
Color122
Color123
Color124
Color125
Color126
Color127
Color128
Color129
Color130
Color131
Color132
Color133
Color134
Color135
Color136
Color137
Color138
Color139
Color140
Color141
Color142
Color143
Color144
Color145
Color146
Color147
Color148
Color149
Color150
Color151
Color152
Color153
Color154
Color155
Color156
Color157
Color158
Color159
Color160
Color161
Color162
Color163
Color164
Color165
Color166
Color167
Color168
Color169
Color170
Color171
Color172
Color173
Color174
Color175
Color176
Color177
Color178
Color179
Color180
Color181
Color182
Color183
Color184
Color185
Color186
Color187
Color188
Color189
Color190
Color191
Color192
Color193
Color194
Color195
Color196
Color197
Color198
Color199
Color200
Color201
Color202
Color203
Color204
Color205
Color206
Color207
Color208
Color209
Color210
Color211
Color212
Color213
Color214
Color215
Color216
Color217
Color218
Color219
Color220
Color221
Color222
Color223
Color224
Color225
Color226
Color227
Color228
Color229
Color230
Color231
Color232
Color233
Color234
Color235
Color236
Color237
Color238
Color239
Color240
Color241
Color242
Color243
Color244
Color245
Color246
Color247
Color248
Color249
Color250
Color251
Color252
Color253
Color254
Color255
ColorAliceBlue = ColorIsRGB | ColorValid | 0xF0F8FF
ColorAntiqueWhite = ColorIsRGB | ColorValid | 0xFAEBD7
ColorAquaMarine = ColorIsRGB | ColorValid | 0x7FFFD4
ColorAzure = ColorIsRGB | ColorValid | 0xF0FFFF
ColorBeige = ColorIsRGB | ColorValid | 0xF5F5DC
ColorBisque = ColorIsRGB | ColorValid | 0xFFE4C4
ColorBlanchedAlmond = ColorIsRGB | ColorValid | 0xFFEBCD
ColorBlueViolet = ColorIsRGB | ColorValid | 0x8A2BE2
ColorBrown = ColorIsRGB | ColorValid | 0xA52A2A
ColorBurlyWood = ColorIsRGB | ColorValid | 0xDEB887
ColorCadetBlue = ColorIsRGB | ColorValid | 0x5F9EA0
ColorChartreuse = ColorIsRGB | ColorValid | 0x7FFF00
ColorChocolate = ColorIsRGB | ColorValid | 0xD2691E
ColorCoral = ColorIsRGB | ColorValid | 0xFF7F50
ColorCornflowerBlue = ColorIsRGB | ColorValid | 0x6495ED
ColorCornsilk = ColorIsRGB | ColorValid | 0xFFF8DC
ColorCrimson = ColorIsRGB | ColorValid | 0xDC143C
ColorDarkBlue = ColorIsRGB | ColorValid | 0x00008B
ColorDarkCyan = ColorIsRGB | ColorValid | 0x008B8B
ColorDarkGoldenrod = ColorIsRGB | ColorValid | 0xB8860B
ColorDarkGray = ColorIsRGB | ColorValid | 0xA9A9A9
ColorDarkGreen = ColorIsRGB | ColorValid | 0x006400
ColorDarkKhaki = ColorIsRGB | ColorValid | 0xBDB76B
ColorDarkMagenta = ColorIsRGB | ColorValid | 0x8B008B
ColorDarkOliveGreen = ColorIsRGB | ColorValid | 0x556B2F
ColorDarkOrange = ColorIsRGB | ColorValid | 0xFF8C00
ColorDarkOrchid = ColorIsRGB | ColorValid | 0x9932CC
ColorDarkRed = ColorIsRGB | ColorValid | 0x8B0000
ColorDarkSalmon = ColorIsRGB | ColorValid | 0xE9967A
ColorDarkSeaGreen = ColorIsRGB | ColorValid | 0x8FBC8F
ColorDarkSlateBlue = ColorIsRGB | ColorValid | 0x483D8B
ColorDarkSlateGray = ColorIsRGB | ColorValid | 0x2F4F4F
ColorDarkTurquoise = ColorIsRGB | ColorValid | 0x00CED1
ColorDarkViolet = ColorIsRGB | ColorValid | 0x9400D3
ColorDeepPink = ColorIsRGB | ColorValid | 0xFF1493
ColorDeepSkyBlue = ColorIsRGB | ColorValid | 0x00BFFF
ColorDimGray = ColorIsRGB | ColorValid | 0x696969
ColorDodgerBlue = ColorIsRGB | ColorValid | 0x1E90FF
ColorFireBrick = ColorIsRGB | ColorValid | 0xB22222
ColorFloralWhite = ColorIsRGB | ColorValid | 0xFFFAF0
ColorForestGreen = ColorIsRGB | ColorValid | 0x228B22
ColorGainsboro = ColorIsRGB | ColorValid | 0xDCDCDC
ColorGhostWhite = ColorIsRGB | ColorValid | 0xF8F8FF
ColorGold = ColorIsRGB | ColorValid | 0xFFD700
ColorGoldenrod = ColorIsRGB | ColorValid | 0xDAA520
ColorGreenYellow = ColorIsRGB | ColorValid | 0xADFF2F
ColorHoneydew = ColorIsRGB | ColorValid | 0xF0FFF0
ColorHotPink = ColorIsRGB | ColorValid | 0xFF69B4
ColorIndianRed = ColorIsRGB | ColorValid | 0xCD5C5C
ColorIndigo = ColorIsRGB | ColorValid | 0x4B0082
ColorIvory = ColorIsRGB | ColorValid | 0xFFFFF0
ColorKhaki = ColorIsRGB | ColorValid | 0xF0E68C
ColorLavender = ColorIsRGB | ColorValid | 0xE6E6FA
ColorLavenderBlush = ColorIsRGB | ColorValid | 0xFFF0F5
ColorLawnGreen = ColorIsRGB | ColorValid | 0x7CFC00
ColorLemonChiffon = ColorIsRGB | ColorValid | 0xFFFACD
ColorLightBlue = ColorIsRGB | ColorValid | 0xADD8E6
ColorLightCoral = ColorIsRGB | ColorValid | 0xF08080
ColorLightCyan = ColorIsRGB | ColorValid | 0xE0FFFF
ColorLightGoldenrodYellow = ColorIsRGB | ColorValid | 0xFAFAD2
ColorLightGray = ColorIsRGB | ColorValid | 0xD3D3D3
ColorLightGreen = ColorIsRGB | ColorValid | 0x90EE90
ColorLightPink = ColorIsRGB | ColorValid | 0xFFB6C1
ColorLightSalmon = ColorIsRGB | ColorValid | 0xFFA07A
ColorLightSeaGreen = ColorIsRGB | ColorValid | 0x20B2AA
ColorLightSkyBlue = ColorIsRGB | ColorValid | 0x87CEFA
ColorLightSlateGray = ColorIsRGB | ColorValid | 0x778899
ColorLightSteelBlue = ColorIsRGB | ColorValid | 0xB0C4DE
ColorLightYellow = ColorIsRGB | ColorValid | 0xFFFFE0
ColorLimeGreen = ColorIsRGB | ColorValid | 0x32CD32
ColorLinen = ColorIsRGB | ColorValid | 0xFAF0E6
ColorMediumAquamarine = ColorIsRGB | ColorValid | 0x66CDAA
ColorMediumBlue = ColorIsRGB | ColorValid | 0x0000CD
ColorMediumOrchid = ColorIsRGB | ColorValid | 0xBA55D3
ColorMediumPurple = ColorIsRGB | ColorValid | 0x9370DB
ColorMediumSeaGreen = ColorIsRGB | ColorValid | 0x3CB371
ColorMediumSlateBlue = ColorIsRGB | ColorValid | 0x7B68EE
ColorMediumSpringGreen = ColorIsRGB | ColorValid | 0x00FA9A
ColorMediumTurquoise = ColorIsRGB | ColorValid | 0x48D1CC
ColorMediumVioletRed = ColorIsRGB | ColorValid | 0xC71585
ColorMidnightBlue = ColorIsRGB | ColorValid | 0x191970
ColorMintCream = ColorIsRGB | ColorValid | 0xF5FFFA
ColorMistyRose = ColorIsRGB | ColorValid | 0xFFE4E1
ColorMoccasin = ColorIsRGB | ColorValid | 0xFFE4B5
ColorNavajoWhite = ColorIsRGB | ColorValid | 0xFFDEAD
ColorOldLace = ColorIsRGB | ColorValid | 0xFDF5E6
ColorOliveDrab = ColorIsRGB | ColorValid | 0x6B8E23
ColorOrange = ColorIsRGB | ColorValid | 0xFFA500
ColorOrangeRed = ColorIsRGB | ColorValid | 0xFF4500
ColorOrchid = ColorIsRGB | ColorValid | 0xDA70D6
ColorPaleGoldenrod = ColorIsRGB | ColorValid | 0xEEE8AA
ColorPaleGreen = ColorIsRGB | ColorValid | 0x98FB98
ColorPaleTurquoise = ColorIsRGB | ColorValid | 0xAFEEEE
ColorPaleVioletRed = ColorIsRGB | ColorValid | 0xDB7093
ColorPapayaWhip = ColorIsRGB | ColorValid | 0xFFEFD5
ColorPeachPuff = ColorIsRGB | ColorValid | 0xFFDAB9
ColorPeru = ColorIsRGB | ColorValid | 0xCD853F
ColorPink = ColorIsRGB | ColorValid | 0xFFC0CB
ColorPlum = ColorIsRGB | ColorValid | 0xDDA0DD
ColorPowderBlue = ColorIsRGB | ColorValid | 0xB0E0E6
ColorRebeccaPurple = ColorIsRGB | ColorValid | 0x663399
ColorRosyBrown = ColorIsRGB | ColorValid | 0xBC8F8F
ColorRoyalBlue = ColorIsRGB | ColorValid | 0x4169E1
ColorSaddleBrown = ColorIsRGB | ColorValid | 0x8B4513
ColorSalmon = ColorIsRGB | ColorValid | 0xFA8072
ColorSandyBrown = ColorIsRGB | ColorValid | 0xF4A460
ColorSeaGreen = ColorIsRGB | ColorValid | 0x2E8B57
ColorSeashell = ColorIsRGB | ColorValid | 0xFFF5EE
ColorSienna = ColorIsRGB | ColorValid | 0xA0522D
ColorSkyblue = ColorIsRGB | ColorValid | 0x87CEEB
ColorSlateBlue = ColorIsRGB | ColorValid | 0x6A5ACD
ColorSlateGray = ColorIsRGB | ColorValid | 0x708090
ColorSnow = ColorIsRGB | ColorValid | 0xFFFAFA
ColorSpringGreen = ColorIsRGB | ColorValid | 0x00FF7F
ColorSteelBlue = ColorIsRGB | ColorValid | 0x4682B4
ColorTan = ColorIsRGB | ColorValid | 0xD2B48C
ColorThistle = ColorIsRGB | ColorValid | 0xD8BFD8
ColorTomato = ColorIsRGB | ColorValid | 0xFF6347
ColorTurquoise = ColorIsRGB | ColorValid | 0x40E0D0
ColorViolet = ColorIsRGB | ColorValid | 0xEE82EE
ColorWheat = ColorIsRGB | ColorValid | 0xF5DEB3
ColorWhiteSmoke = ColorIsRGB | ColorValid | 0xF5F5F5
ColorYellowGreen = ColorIsRGB | ColorValid | 0x9ACD32
)
// These are aliases for the color gray, because some of us spell
// it as grey.
const (
ColorGrey = ColorGray
ColorDimGrey = ColorDimGray
ColorDarkGrey = ColorDarkGray
ColorDarkSlateGrey = ColorDarkSlateGray
ColorLightGrey = ColorLightGray
ColorLightSlateGrey = ColorLightSlateGray
ColorSlateGrey = ColorSlateGray
)
// ColorValues maps color constants to their RGB values.
var ColorValues = map[Color]int32{
ColorBlack: 0x000000,
ColorMaroon: 0x800000,
ColorGreen: 0x008000,
ColorOlive: 0x808000,
ColorNavy: 0x000080,
ColorPurple: 0x800080,
ColorTeal: 0x008080,
ColorSilver: 0xC0C0C0,
ColorGray: 0x808080,
ColorRed: 0xFF0000,
ColorLime: 0x00FF00,
ColorYellow: 0xFFFF00,
ColorBlue: 0x0000FF,
ColorFuchsia: 0xFF00FF,
ColorAqua: 0x00FFFF,
ColorWhite: 0xFFFFFF,
Color16: 0x000000, // black
Color17: 0x00005F,
Color18: 0x000087,
Color19: 0x0000AF,
Color20: 0x0000D7,
Color21: 0x0000FF, // blue
Color22: 0x005F00,
Color23: 0x005F5F,
Color24: 0x005F87,
Color25: 0x005FAF,
Color26: 0x005FD7,
Color27: 0x005FFF,
Color28: 0x008700,
Color29: 0x00875F,
Color30: 0x008787,
Color31: 0x0087Af,
Color32: 0x0087D7,
Color33: 0x0087FF,
Color34: 0x00AF00,
Color35: 0x00AF5F,
Color36: 0x00AF87,
Color37: 0x00AFAF,
Color38: 0x00AFD7,
Color39: 0x00AFFF,
Color40: 0x00D700,
Color41: 0x00D75F,
Color42: 0x00D787,
Color43: 0x00D7AF,
Color44: 0x00D7D7,
Color45: 0x00D7FF,
Color46: 0x00FF00, // lime
Color47: 0x00FF5F,
Color48: 0x00FF87,
Color49: 0x00FFAF,
Color50: 0x00FFd7,
Color51: 0x00FFFF, // aqua
Color52: 0x5F0000,
Color53: 0x5F005F,
Color54: 0x5F0087,
Color55: 0x5F00AF,
Color56: 0x5F00D7,
Color57: 0x5F00FF,
Color58: 0x5F5F00,
Color59: 0x5F5F5F,
Color60: 0x5F5F87,
Color61: 0x5F5FAF,
Color62: 0x5F5FD7,
Color63: 0x5F5FFF,
Color64: 0x5F8700,
Color65: 0x5F875F,
Color66: 0x5F8787,
Color67: 0x5F87AF,
Color68: 0x5F87D7,
Color69: 0x5F87FF,
Color70: 0x5FAF00,
Color71: 0x5FAF5F,
Color72: 0x5FAF87,
Color73: 0x5FAFAF,
Color74: 0x5FAFD7,
Color75: 0x5FAFFF,
Color76: 0x5FD700,
Color77: 0x5FD75F,
Color78: 0x5FD787,
Color79: 0x5FD7AF,
Color80: 0x5FD7D7,
Color81: 0x5FD7FF,
Color82: 0x5FFF00,
Color83: 0x5FFF5F,
Color84: 0x5FFF87,
Color85: 0x5FFFAF,
Color86: 0x5FFFD7,
Color87: 0x5FFFFF,
Color88: 0x870000,
Color89: 0x87005F,
Color90: 0x870087,
Color91: 0x8700AF,
Color92: 0x8700D7,
Color93: 0x8700FF,
Color94: 0x875F00,
Color95: 0x875F5F,
Color96: 0x875F87,
Color97: 0x875FAF,
Color98: 0x875FD7,
Color99: 0x875FFF,
Color100: 0x878700,
Color101: 0x87875F,
Color102: 0x878787,
Color103: 0x8787AF,
Color104: 0x8787D7,
Color105: 0x8787FF,
Color106: 0x87AF00,
Color107: 0x87AF5F,
Color108: 0x87AF87,
Color109: 0x87AFAF,
Color110: 0x87AFD7,
Color111: 0x87AFFF,
Color112: 0x87D700,
Color113: 0x87D75F,
Color114: 0x87D787,
Color115: 0x87D7AF,
Color116: 0x87D7D7,
Color117: 0x87D7FF,
Color118: 0x87FF00,
Color119: 0x87FF5F,
Color120: 0x87FF87,
Color121: 0x87FFAF,
Color122: 0x87FFD7,
Color123: 0x87FFFF,
Color124: 0xAF0000,
Color125: 0xAF005F,
Color126: 0xAF0087,
Color127: 0xAF00AF,
Color128: 0xAF00D7,
Color129: 0xAF00FF,
Color130: 0xAF5F00,
Color131: 0xAF5F5F,
Color132: 0xAF5F87,
Color133: 0xAF5FAF,
Color134: 0xAF5FD7,
Color135: 0xAF5FFF,
Color136: 0xAF8700,
Color137: 0xAF875F,
Color138: 0xAF8787,
Color139: 0xAF87AF,
Color140: 0xAF87D7,
Color141: 0xAF87FF,
Color142: 0xAFAF00,
Color143: 0xAFAF5F,
Color144: 0xAFAF87,
Color145: 0xAFAFAF,
Color146: 0xAFAFD7,
Color147: 0xAFAFFF,
Color148: 0xAFD700,
Color149: 0xAFD75F,
Color150: 0xAFD787,
Color151: 0xAFD7AF,
Color152: 0xAFD7D7,
Color153: 0xAFD7FF,
Color154: 0xAFFF00,
Color155: 0xAFFF5F,
Color156: 0xAFFF87,
Color157: 0xAFFFAF,
Color158: 0xAFFFD7,
Color159: 0xAFFFFF,
Color160: 0xD70000,
Color161: 0xD7005F,
Color162: 0xD70087,
Color163: 0xD700AF,
Color164: 0xD700D7,
Color165: 0xD700FF,
Color166: 0xD75F00,
Color167: 0xD75F5F,
Color168: 0xD75F87,
Color169: 0xD75FAF,
Color170: 0xD75FD7,
Color171: 0xD75FFF,
Color172: 0xD78700,
Color173: 0xD7875F,
Color174: 0xD78787,
Color175: 0xD787AF,
Color176: 0xD787D7,
Color177: 0xD787FF,
Color178: 0xD7AF00,
Color179: 0xD7AF5F,
Color180: 0xD7AF87,
Color181: 0xD7AFAF,
Color182: 0xD7AFD7,
Color183: 0xD7AFFF,
Color184: 0xD7D700,
Color185: 0xD7D75F,
Color186: 0xD7D787,
Color187: 0xD7D7AF,
Color188: 0xD7D7D7,
Color189: 0xD7D7FF,
Color190: 0xD7FF00,
Color191: 0xD7FF5F,
Color192: 0xD7FF87,
Color193: 0xD7FFAF,
Color194: 0xD7FFD7,
Color195: 0xD7FFFF,
Color196: 0xFF0000, // red
Color197: 0xFF005F,
Color198: 0xFF0087,
Color199: 0xFF00AF,
Color200: 0xFF00D7,
Color201: 0xFF00FF, // fuchsia
Color202: 0xFF5F00,
Color203: 0xFF5F5F,
Color204: 0xFF5F87,
Color205: 0xFF5FAF,
Color206: 0xFF5FD7,
Color207: 0xFF5FFF,
Color208: 0xFF8700,
Color209: 0xFF875F,
Color210: 0xFF8787,
Color211: 0xFF87AF,
Color212: 0xFF87D7,
Color213: 0xFF87FF,
Color214: 0xFFAF00,
Color215: 0xFFAF5F,
Color216: 0xFFAF87,
Color217: 0xFFAFAF,
Color218: 0xFFAFD7,
Color219: 0xFFAFFF,
Color220: 0xFFD700,
Color221: 0xFFD75F,
Color222: 0xFFD787,
Color223: 0xFFD7AF,
Color224: 0xFFD7D7,
Color225: 0xFFD7FF,
Color226: 0xFFFF00, // yellow
Color227: 0xFFFF5F,
Color228: 0xFFFF87,
Color229: 0xFFFFAF,
Color230: 0xFFFFD7,
Color231: 0xFFFFFF, // white
Color232: 0x080808,
Color233: 0x121212,
Color234: 0x1C1C1C,
Color235: 0x262626,
Color236: 0x303030,
Color237: 0x3A3A3A,
Color238: 0x444444,
Color239: 0x4E4E4E,
Color240: 0x585858,
Color241: 0x626262,
Color242: 0x6C6C6C,
Color243: 0x767676,
Color244: 0x808080, // grey
Color245: 0x8A8A8A,
Color246: 0x949494,
Color247: 0x9E9E9E,
Color248: 0xA8A8A8,
Color249: 0xB2B2B2,
Color250: 0xBCBCBC,
Color251: 0xC6C6C6,
Color252: 0xD0D0D0,
Color253: 0xDADADA,
Color254: 0xE4E4E4,
Color255: 0xEEEEEE,
ColorAliceBlue: 0xF0F8FF,
ColorAntiqueWhite: 0xFAEBD7,
ColorAquaMarine: 0x7FFFD4,
ColorAzure: 0xF0FFFF,
ColorBeige: 0xF5F5DC,
ColorBisque: 0xFFE4C4,
ColorBlanchedAlmond: 0xFFEBCD,
ColorBlueViolet: 0x8A2BE2,
ColorBrown: 0xA52A2A,
ColorBurlyWood: 0xDEB887,
ColorCadetBlue: 0x5F9EA0,
ColorChartreuse: 0x7FFF00,
ColorChocolate: 0xD2691E,
ColorCoral: 0xFF7F50,
ColorCornflowerBlue: 0x6495ED,
ColorCornsilk: 0xFFF8DC,
ColorCrimson: 0xDC143C,
ColorDarkBlue: 0x00008B,
ColorDarkCyan: 0x008B8B,
ColorDarkGoldenrod: 0xB8860B,
ColorDarkGray: 0xA9A9A9,
ColorDarkGreen: 0x006400,
ColorDarkKhaki: 0xBDB76B,
ColorDarkMagenta: 0x8B008B,
ColorDarkOliveGreen: 0x556B2F,
ColorDarkOrange: 0xFF8C00,
ColorDarkOrchid: 0x9932CC,
ColorDarkRed: 0x8B0000,
ColorDarkSalmon: 0xE9967A,
ColorDarkSeaGreen: 0x8FBC8F,
ColorDarkSlateBlue: 0x483D8B,
ColorDarkSlateGray: 0x2F4F4F,
ColorDarkTurquoise: 0x00CED1,
ColorDarkViolet: 0x9400D3,
ColorDeepPink: 0xFF1493,
ColorDeepSkyBlue: 0x00BFFF,
ColorDimGray: 0x696969,
ColorDodgerBlue: 0x1E90FF,
ColorFireBrick: 0xB22222,
ColorFloralWhite: 0xFFFAF0,
ColorForestGreen: 0x228B22,
ColorGainsboro: 0xDCDCDC,
ColorGhostWhite: 0xF8F8FF,
ColorGold: 0xFFD700,
ColorGoldenrod: 0xDAA520,
ColorGreenYellow: 0xADFF2F,
ColorHoneydew: 0xF0FFF0,
ColorHotPink: 0xFF69B4,
ColorIndianRed: 0xCD5C5C,
ColorIndigo: 0x4B0082,
ColorIvory: 0xFFFFF0,
ColorKhaki: 0xF0E68C,
ColorLavender: 0xE6E6FA,
ColorLavenderBlush: 0xFFF0F5,
ColorLawnGreen: 0x7CFC00,
ColorLemonChiffon: 0xFFFACD,
ColorLightBlue: 0xADD8E6,
ColorLightCoral: 0xF08080,
ColorLightCyan: 0xE0FFFF,
ColorLightGoldenrodYellow: 0xFAFAD2,
ColorLightGray: 0xD3D3D3,
ColorLightGreen: 0x90EE90,
ColorLightPink: 0xFFB6C1,
ColorLightSalmon: 0xFFA07A,
ColorLightSeaGreen: 0x20B2AA,
ColorLightSkyBlue: 0x87CEFA,
ColorLightSlateGray: 0x778899,
ColorLightSteelBlue: 0xB0C4DE,
ColorLightYellow: 0xFFFFE0,
ColorLimeGreen: 0x32CD32,
ColorLinen: 0xFAF0E6,
ColorMediumAquamarine: 0x66CDAA,
ColorMediumBlue: 0x0000CD,
ColorMediumOrchid: 0xBA55D3,
ColorMediumPurple: 0x9370DB,
ColorMediumSeaGreen: 0x3CB371,
ColorMediumSlateBlue: 0x7B68EE,
ColorMediumSpringGreen: 0x00FA9A,
ColorMediumTurquoise: 0x48D1CC,
ColorMediumVioletRed: 0xC71585,
ColorMidnightBlue: 0x191970,
ColorMintCream: 0xF5FFFA,
ColorMistyRose: 0xFFE4E1,
ColorMoccasin: 0xFFE4B5,
ColorNavajoWhite: 0xFFDEAD,
ColorOldLace: 0xFDF5E6,
ColorOliveDrab: 0x6B8E23,
ColorOrange: 0xFFA500,
ColorOrangeRed: 0xFF4500,
ColorOrchid: 0xDA70D6,
ColorPaleGoldenrod: 0xEEE8AA,
ColorPaleGreen: 0x98FB98,
ColorPaleTurquoise: 0xAFEEEE,
ColorPaleVioletRed: 0xDB7093,
ColorPapayaWhip: 0xFFEFD5,
ColorPeachPuff: 0xFFDAB9,
ColorPeru: 0xCD853F,
ColorPink: 0xFFC0CB,
ColorPlum: 0xDDA0DD,
ColorPowderBlue: 0xB0E0E6,
ColorRebeccaPurple: 0x663399,
ColorRosyBrown: 0xBC8F8F,
ColorRoyalBlue: 0x4169E1,
ColorSaddleBrown: 0x8B4513,
ColorSalmon: 0xFA8072,
ColorSandyBrown: 0xF4A460,
ColorSeaGreen: 0x2E8B57,
ColorSeashell: 0xFFF5EE,
ColorSienna: 0xA0522D,
ColorSkyblue: 0x87CEEB,
ColorSlateBlue: 0x6A5ACD,
ColorSlateGray: 0x708090,
ColorSnow: 0xFFFAFA,
ColorSpringGreen: 0x00FF7F,
ColorSteelBlue: 0x4682B4,
ColorTan: 0xD2B48C,
ColorThistle: 0xD8BFD8,
ColorTomato: 0xFF6347,
ColorTurquoise: 0x40E0D0,
ColorViolet: 0xEE82EE,
ColorWheat: 0xF5DEB3,
ColorWhiteSmoke: 0xF5F5F5,
ColorYellowGreen: 0x9ACD32,
}
// Special colors.
const (
// ColorReset is used to indicate that the color should use the
// vanilla terminal colors. (Basically go back to the defaults.)
ColorReset = ColorSpecial | iota
// ColorNone indicates that we should not change the color from
// whatever is already displayed. This can only be used in limited
// circumstances.
ColorNone
)
// ColorNames holds the written names of colors. Useful to present a list of
// recognized named colors.
var ColorNames = map[string]Color{
"black": ColorBlack,
"maroon": ColorMaroon,
"green": ColorGreen,
"olive": ColorOlive,
"navy": ColorNavy,
"purple": ColorPurple,
"teal": ColorTeal,
"silver": ColorSilver,
"gray": ColorGray,
"red": ColorRed,
"lime": ColorLime,
"yellow": ColorYellow,
"blue": ColorBlue,
"fuchsia": ColorFuchsia,
"aqua": ColorAqua,
"white": ColorWhite,
"aliceblue": ColorAliceBlue,
"antiquewhite": ColorAntiqueWhite,
"aquamarine": ColorAquaMarine,
"azure": ColorAzure,
"beige": ColorBeige,
"bisque": ColorBisque,
"blanchedalmond": ColorBlanchedAlmond,
"blueviolet": ColorBlueViolet,
"brown": ColorBrown,
"burlywood": ColorBurlyWood,
"cadetblue": ColorCadetBlue,
"chartreuse": ColorChartreuse,
"chocolate": ColorChocolate,
"coral": ColorCoral,
"cornflowerblue": ColorCornflowerBlue,
"cornsilk": ColorCornsilk,
"crimson": ColorCrimson,
"darkblue": ColorDarkBlue,
"darkcyan": ColorDarkCyan,
"darkgoldenrod": ColorDarkGoldenrod,
"darkgray": ColorDarkGray,
"darkgreen": ColorDarkGreen,
"darkkhaki": ColorDarkKhaki,
"darkmagenta": ColorDarkMagenta,
"darkolivegreen": ColorDarkOliveGreen,
"darkorange": ColorDarkOrange,
"darkorchid": ColorDarkOrchid,
"darkred": ColorDarkRed,
"darksalmon": ColorDarkSalmon,
"darkseagreen": ColorDarkSeaGreen,
"darkslateblue": ColorDarkSlateBlue,
"darkslategray": ColorDarkSlateGray,
"darkturquoise": ColorDarkTurquoise,
"darkviolet": ColorDarkViolet,
"deeppink": ColorDeepPink,
"deepskyblue": ColorDeepSkyBlue,
"dimgray": ColorDimGray,
"dodgerblue": ColorDodgerBlue,
"firebrick": ColorFireBrick,
"floralwhite": ColorFloralWhite,
"forestgreen": ColorForestGreen,
"gainsboro": ColorGainsboro,
"ghostwhite": ColorGhostWhite,
"gold": ColorGold,
"goldenrod": ColorGoldenrod,
"greenyellow": ColorGreenYellow,
"honeydew": ColorHoneydew,
"hotpink": ColorHotPink,
"indianred": ColorIndianRed,
"indigo": ColorIndigo,
"ivory": ColorIvory,
"khaki": ColorKhaki,
"lavender": ColorLavender,
"lavenderblush": ColorLavenderBlush,
"lawngreen": ColorLawnGreen,
"lemonchiffon": ColorLemonChiffon,
"lightblue": ColorLightBlue,
"lightcoral": ColorLightCoral,
"lightcyan": ColorLightCyan,
"lightgoldenrodyellow": ColorLightGoldenrodYellow,
"lightgray": ColorLightGray,
"lightgreen": ColorLightGreen,
"lightpink": ColorLightPink,
"lightsalmon": ColorLightSalmon,
"lightseagreen": ColorLightSeaGreen,
"lightskyblue": ColorLightSkyBlue,
"lightslategray": ColorLightSlateGray,
"lightsteelblue": ColorLightSteelBlue,
"lightyellow": ColorLightYellow,
"limegreen": ColorLimeGreen,
"linen": ColorLinen,
"mediumaquamarine": ColorMediumAquamarine,
"mediumblue": ColorMediumBlue,
"mediumorchid": ColorMediumOrchid,
"mediumpurple": ColorMediumPurple,
"mediumseagreen": ColorMediumSeaGreen,
"mediumslateblue": ColorMediumSlateBlue,
"mediumspringgreen": ColorMediumSpringGreen,
"mediumturquoise": ColorMediumTurquoise,
"mediumvioletred": ColorMediumVioletRed,
"midnightblue": ColorMidnightBlue,
"mintcream": ColorMintCream,
"mistyrose": ColorMistyRose,
"moccasin": ColorMoccasin,
"navajowhite": ColorNavajoWhite,
"oldlace": ColorOldLace,
"olivedrab": ColorOliveDrab,
"orange": ColorOrange,
"orangered": ColorOrangeRed,
"orchid": ColorOrchid,
"palegoldenrod": ColorPaleGoldenrod,
"palegreen": ColorPaleGreen,
"paleturquoise": ColorPaleTurquoise,
"palevioletred": ColorPaleVioletRed,
"papayawhip": ColorPapayaWhip,
"peachpuff": ColorPeachPuff,
"peru": ColorPeru,
"pink": ColorPink,
"plum": ColorPlum,
"powderblue": ColorPowderBlue,
"rebeccapurple": ColorRebeccaPurple,
"rosybrown": ColorRosyBrown,
"royalblue": ColorRoyalBlue,
"saddlebrown": ColorSaddleBrown,
"salmon": ColorSalmon,
"sandybrown": ColorSandyBrown,
"seagreen": ColorSeaGreen,
"seashell": ColorSeashell,
"sienna": ColorSienna,
"skyblue": ColorSkyblue,
"slateblue": ColorSlateBlue,
"slategray": ColorSlateGray,
"snow": ColorSnow,
"springgreen": ColorSpringGreen,
"steelblue": ColorSteelBlue,
"tan": ColorTan,
"thistle": ColorThistle,
"tomato": ColorTomato,
"turquoise": ColorTurquoise,
"violet": ColorViolet,
"wheat": ColorWheat,
"whitesmoke": ColorWhiteSmoke,
"yellowgreen": ColorYellowGreen,
"grey": ColorGray,
"dimgrey": ColorDimGray,
"darkgrey": ColorDarkGray,
"darkslategrey": ColorDarkSlateGray,
"lightgrey": ColorLightGray,
"lightslategrey": ColorLightSlateGray,
"slategrey": ColorSlateGray,
}
// Valid indicates the color is a valid value (has been set).
func (c Color) Valid() bool {
return c&ColorValid != 0
}
// IsRGB is true if the color is an RGB specific value.
func (c Color) IsRGB() bool {
return c&(ColorValid|ColorIsRGB) == (ColorValid | ColorIsRGB)
}
// CSS returns the CSS hex string ( #ABCDEF ) if valid
// if not a valid color returns empty string
func (c Color) CSS() string {
if !c.Valid() {
return ""
}
return fmt.Sprintf("#%06X", c.Hex())
}
// String implements fmt.Stringer to return either the
// W3C name if it has one or the CSS hex string '#ABCDEF'
func (c Color) String() string {
if !c.Valid() {
switch c {
case ColorNone:
return "none"
case ColorDefault:
return "default"
case ColorReset:
return "reset"
}
return ""
}
return c.Name(true)
}
// Name returns W3C name or an empty string if no arguments
// if passed true as an argument it will falls back to
// the CSS hex string if no W3C name found '#ABCDEF'
func (c Color) Name(css ...bool) string {
for name, hex := range ColorNames {
if c == hex {
return name
}
}
if len(css) > 0 && css[0] {
return c.CSS()
}
return ""
}
// Hex returns the color's hexadecimal RGB 24-bit value with each component
// consisting of a single byte, R << 16 | G << 8 | B. If the color
// is unknown or unset, -1 is returned.
func (c Color) Hex() int32 {
if !c.Valid() {
return -1
}
if c&ColorIsRGB != 0 {
return int32(c & 0xffffff)
}
if v, ok := ColorValues[c]; ok {
return v
}
return -1
}
// RGB returns the red, green, and blue components of the color, with
// each component represented as a value 0-255. In the event that the
// color cannot be broken up (not set usually), -1 is returned for each value.
func (c Color) RGB() (int32, int32, int32) {
v := c.Hex()
if v < 0 {
return -1, -1, -1
}
return (v >> 16) & 0xff, (v >> 8) & 0xff, v & 0xff
}
// TrueColor returns the true color (RGB) version of the provided color.
// This is useful for ensuring color accuracy when using named colors.
// This will override terminal theme colors.
func (c Color) TrueColor() Color {
if !c.Valid() {
return ColorDefault
}
if c&ColorIsRGB != 0 {
return c | ColorValid
}
return Color(c.Hex()) | ColorIsRGB | ColorValid
}
// NewRGBColor returns a new color with the given red, green, and blue values.
// Each value must be represented in the range 0-255.
func NewRGBColor(r, g, b int32) Color {
return NewHexColor(((r & 0xff) << 16) | ((g & 0xff) << 8) | (b & 0xff))
}
// NewHexColor returns a color using the given 24-bit RGB value.
func NewHexColor(v int32) Color {
return ColorIsRGB | Color(v) | ColorValid
}
// GetColor creates a Color from a color name (W3C name). A hex value may
// be supplied as a string in the format "#ffffff".
func GetColor(name string) Color {
if c, ok := ColorNames[name]; ok {
return c
}
if len(name) == 7 && name[0] == '#' {
if v, e := strconv.ParseInt(name[1:], 16, 32); e == nil {
return NewHexColor(int32(v))
}
}
return ColorDefault
}
// PaletteColor creates a color based on the palette index.
func PaletteColor(index int) Color {
return Color(index) | ColorValid
}
// FromImageColor converts an image/color.Color into tcell.Color.
// The alpha value is dropped, so it should be tracked separately if it is
// needed.
func FromImageColor(imageColor ic.Color) Color {
r, g, b, _ := imageColor.RGBA()
// NOTE image/color.Color RGB values range is [0, 0xFFFF] as uint32
return NewRGBColor(int32(r>>8), int32(g>>8), int32(b>>8))
}
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