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Mini Shell
Mini Shell
/**
* @module zrender/tool/color
*/
define(function(require) {
var kCSSColorTable = {
'transparent': [0,0,0,0], 'aliceblue': [240,248,255,1],
'antiquewhite': [250,235,215,1], 'aqua': [0,255,255,1],
'aquamarine': [127,255,212,1], 'azure': [240,255,255,1],
'beige': [245,245,220,1], 'bisque': [255,228,196,1],
'black': [0,0,0,1], 'blanchedalmond': [255,235,205,1],
'blue': [0,0,255,1], 'blueviolet': [138,43,226,1],
'brown': [165,42,42,1], 'burlywood': [222,184,135,1],
'cadetblue': [95,158,160,1], 'chartreuse': [127,255,0,1],
'chocolate': [210,105,30,1], 'coral': [255,127,80,1],
'cornflowerblue': [100,149,237,1], 'cornsilk': [255,248,220,1],
'crimson': [220,20,60,1], 'cyan': [0,255,255,1],
'darkblue': [0,0,139,1], 'darkcyan': [0,139,139,1],
'darkgoldenrod': [184,134,11,1], 'darkgray': [169,169,169,1],
'darkgreen': [0,100,0,1], 'darkgrey': [169,169,169,1],
'darkkhaki': [189,183,107,1], 'darkmagenta': [139,0,139,1],
'darkolivegreen': [85,107,47,1], 'darkorange': [255,140,0,1],
'darkorchid': [153,50,204,1], 'darkred': [139,0,0,1],
'darksalmon': [233,150,122,1], 'darkseagreen': [143,188,143,1],
'darkslateblue': [72,61,139,1], 'darkslategray': [47,79,79,1],
'darkslategrey': [47,79,79,1], 'darkturquoise': [0,206,209,1],
'darkviolet': [148,0,211,1], 'deeppink': [255,20,147,1],
'deepskyblue': [0,191,255,1], 'dimgray': [105,105,105,1],
'dimgrey': [105,105,105,1], 'dodgerblue': [30,144,255,1],
'firebrick': [178,34,34,1], 'floralwhite': [255,250,240,1],
'forestgreen': [34,139,34,1], 'fuchsia': [255,0,255,1],
'gainsboro': [220,220,220,1], 'ghostwhite': [248,248,255,1],
'gold': [255,215,0,1], 'goldenrod': [218,165,32,1],
'gray': [128,128,128,1], 'green': [0,128,0,1],
'greenyellow': [173,255,47,1], 'grey': [128,128,128,1],
'honeydew': [240,255,240,1], 'hotpink': [255,105,180,1],
'indianred': [205,92,92,1], 'indigo': [75,0,130,1],
'ivory': [255,255,240,1], 'khaki': [240,230,140,1],
'lavender': [230,230,250,1], 'lavenderblush': [255,240,245,1],
'lawngreen': [124,252,0,1], 'lemonchiffon': [255,250,205,1],
'lightblue': [173,216,230,1], 'lightcoral': [240,128,128,1],
'lightcyan': [224,255,255,1], 'lightgoldenrodyellow': [250,250,210,1],
'lightgray': [211,211,211,1], 'lightgreen': [144,238,144,1],
'lightgrey': [211,211,211,1], 'lightpink': [255,182,193,1],
'lightsalmon': [255,160,122,1], 'lightseagreen': [32,178,170,1],
'lightskyblue': [135,206,250,1], 'lightslategray': [119,136,153,1],
'lightslategrey': [119,136,153,1], 'lightsteelblue': [176,196,222,1],
'lightyellow': [255,255,224,1], 'lime': [0,255,0,1],
'limegreen': [50,205,50,1], 'linen': [250,240,230,1],
'magenta': [255,0,255,1], 'maroon': [128,0,0,1],
'mediumaquamarine': [102,205,170,1], 'mediumblue': [0,0,205,1],
'mediumorchid': [186,85,211,1], 'mediumpurple': [147,112,219,1],
'mediumseagreen': [60,179,113,1], 'mediumslateblue': [123,104,238,1],
'mediumspringgreen': [0,250,154,1], 'mediumturquoise': [72,209,204,1],
'mediumvioletred': [199,21,133,1], 'midnightblue': [25,25,112,1],
'mintcream': [245,255,250,1], 'mistyrose': [255,228,225,1],
'moccasin': [255,228,181,1], 'navajowhite': [255,222,173,1],
'navy': [0,0,128,1], 'oldlace': [253,245,230,1],
'olive': [128,128,0,1], 'olivedrab': [107,142,35,1],
'orange': [255,165,0,1], 'orangered': [255,69,0,1],
'orchid': [218,112,214,1], 'palegoldenrod': [238,232,170,1],
'palegreen': [152,251,152,1], 'paleturquoise': [175,238,238,1],
'palevioletred': [219,112,147,1], 'papayawhip': [255,239,213,1],
'peachpuff': [255,218,185,1], 'peru': [205,133,63,1],
'pink': [255,192,203,1], 'plum': [221,160,221,1],
'powderblue': [176,224,230,1], 'purple': [128,0,128,1],
'red': [255,0,0,1], 'rosybrown': [188,143,143,1],
'royalblue': [65,105,225,1], 'saddlebrown': [139,69,19,1],
'salmon': [250,128,114,1], 'sandybrown': [244,164,96,1],
'seagreen': [46,139,87,1], 'seashell': [255,245,238,1],
'sienna': [160,82,45,1], 'silver': [192,192,192,1],
'skyblue': [135,206,235,1], 'slateblue': [106,90,205,1],
'slategray': [112,128,144,1], 'slategrey': [112,128,144,1],
'snow': [255,250,250,1], 'springgreen': [0,255,127,1],
'steelblue': [70,130,180,1], 'tan': [210,180,140,1],
'teal': [0,128,128,1], 'thistle': [216,191,216,1],
'tomato': [255,99,71,1], 'turquoise': [64,224,208,1],
'violet': [238,130,238,1], 'wheat': [245,222,179,1],
'white': [255,255,255,1], 'whitesmoke': [245,245,245,1],
'yellow': [255,255,0,1], 'yellowgreen': [154,205,50,1]
};
function clampCssByte(i) { // Clamp to integer 0 .. 255.
i = Math.round(i); // Seems to be what Chrome does (vs truncation).
return i < 0 ? 0 : i > 255 ? 255 : i;
}
function clampCssAngle(i) { // Clamp to integer 0 .. 360.
i = Math.round(i); // Seems to be what Chrome does (vs truncation).
return i < 0 ? 0 : i > 360 ? 360 : i;
}
function clampCssFloat(f) { // Clamp to float 0.0 .. 1.0.
return f < 0 ? 0 : f > 1 ? 1 : f;
}
function parseCssInt(str) { // int or percentage.
if (str.length && str.charAt(str.length - 1) === '%') {
return clampCssByte(parseFloat(str) / 100 * 255);
}
return clampCssByte(parseInt(str, 10));
}
function parseCssFloat(str) { // float or percentage.
if (str.length && str.charAt(str.length - 1) === '%') {
return clampCssFloat(parseFloat(str) / 100);
}
return clampCssFloat(parseFloat(str));
}
function cssHueToRgb(m1, m2, h) {
if (h < 0) {
h += 1;
}
else if (h > 1) {
h -= 1;
}
if (h * 6 < 1) {
return m1 + (m2 - m1) * h * 6;
}
if (h * 2 < 1) {
return m2;
}
if (h * 3 < 2) {
return m1 + (m2 - m1) * (2/3 - h) * 6;
}
return m1;
}
function lerp(a, b, p) {
return a + (b - a) * p;
}
/**
* @param {string} colorStr
* @return {Array.<number>}
* @memberOf module:zrender/util/color
*/
function parse(colorStr) {
if (!colorStr) {
return;
}
// colorStr may be not string
colorStr = colorStr + '';
// Remove all whitespace, not compliant, but should just be more accepting.
var str = colorStr.replace(/ /g, '').toLowerCase();
// Color keywords (and transparent) lookup.
if (str in kCSSColorTable) {
return kCSSColorTable[str].slice(); // dup.
}
// #abc and #abc123 syntax.
if (str.charAt(0) === '#') {
if (str.length === 4) {
var iv = parseInt(str.substr(1), 16); // TODO(deanm): Stricter parsing.
if (!(iv >= 0 && iv <= 0xfff)) {
return; // Covers NaN.
}
return [
((iv & 0xf00) >> 4) | ((iv & 0xf00) >> 8),
(iv & 0xf0) | ((iv & 0xf0) >> 4),
(iv & 0xf) | ((iv & 0xf) << 4),
1
];
}
else if (str.length === 7) {
var iv = parseInt(str.substr(1), 16); // TODO(deanm): Stricter parsing.
if (!(iv >= 0 && iv <= 0xffffff)) {
return; // Covers NaN.
}
return [
(iv & 0xff0000) >> 16,
(iv & 0xff00) >> 8,
iv & 0xff,
1
];
}
return;
}
var op = str.indexOf('('), ep = str.indexOf(')');
if (op !== -1 && ep + 1 === str.length) {
var fname = str.substr(0, op);
var params = str.substr(op + 1, ep - (op + 1)).split(',');
var alpha = 1; // To allow case fallthrough.
switch (fname) {
case 'rgba':
if (params.length !== 4) {
return;
}
alpha = parseCssFloat(params.pop()); // jshint ignore:line
// Fall through.
case 'rgb':
if (params.length !== 3) {
return;
}
return [
parseCssInt(params[0]),
parseCssInt(params[1]),
parseCssInt(params[2]),
alpha
];
case 'hsla':
if (params.length !== 4) {
return;
}
params[3] = parseCssFloat(params[3]);
return hsla2rgba(params);
case 'hsl':
if (params.length !== 3) {
return;
}
return hsla2rgba(params);
default:
return;
}
}
return;
}
/**
* @param {Array.<number>} hsla
* @return {Array.<number>} rgba
*/
function hsla2rgba(hsla) {
var h = (((parseFloat(hsla[0]) % 360) + 360) % 360) / 360; // 0 .. 1
// NOTE(deanm): According to the CSS spec s/l should only be
// percentages, but we don't bother and let float or percentage.
var s = parseCssFloat(hsla[1]);
var l = parseCssFloat(hsla[2]);
var m2 = l <= 0.5 ? l * (s + 1) : l + s - l * s;
var m1 = l * 2 - m2;
var rgba = [
clampCssByte(cssHueToRgb(m1, m2, h + 1 / 3) * 255),
clampCssByte(cssHueToRgb(m1, m2, h) * 255),
clampCssByte(cssHueToRgb(m1, m2, h - 1 / 3) * 255)
];
if (hsla.length === 4) {
rgba[3] = hsla[3];
}
return rgba;
}
/**
* @param {Array.<number>} rgba
* @return {Array.<number>} hsla
*/
function rgba2hsla(rgba) {
if (!rgba) {
return;
}
// RGB from 0 to 255
var R = rgba[0] / 255;
var G = rgba[1] / 255;
var B = rgba[2] / 255;
var vMin = Math.min(R, G, B); // Min. value of RGB
var vMax = Math.max(R, G, B); // Max. value of RGB
var delta = vMax - vMin; // Delta RGB value
var L = (vMax + vMin) / 2;
var H;
var S;
// HSL results from 0 to 1
if (delta === 0) {
H = 0;
S = 0;
}
else {
if (L < 0.5) {
S = delta / (vMax + vMin);
}
else {
S = delta / (2 - vMax - vMin);
}
var deltaR = (((vMax - R) / 6) + (delta / 2)) / delta;
var deltaG = (((vMax - G) / 6) + (delta / 2)) / delta;
var deltaB = (((vMax - B) / 6) + (delta / 2)) / delta;
if (R === vMax) {
H = deltaB - deltaG;
}
else if (G === vMax) {
H = (1 / 3) + deltaR - deltaB;
}
else if (B === vMax) {
H = (2 / 3) + deltaG - deltaR;
}
if (H < 0) {
H += 1;
}
if (H > 1) {
H -= 1;
}
}
var hsla = [H * 360, S, L];
if (rgba[3] != null) {
hsla.push(rgba[3]);
}
return hsla;
}
/**
* @param {string} color
* @param {number} level
* @return {string}
* @memberOf module:zrender/util/color
*/
function lift(color, level) {
var colorArr = parse(color);
if (colorArr) {
for (var i = 0; i < 3; i++) {
if (level < 0) {
colorArr[i] = colorArr[i] * (1 - level) | 0;
}
else {
colorArr[i] = ((255 - colorArr[i]) * level + colorArr[i]) | 0;
}
}
return stringify(colorArr, colorArr.length === 4 ? 'rgba' : 'rgb');
}
}
/**
* @param {string} color
* @return {string}
* @memberOf module:zrender/util/color
*/
function toHex(color, level) {
var colorArr = parse(color);
if (colorArr) {
return ((1 << 24) + (colorArr[0] << 16) + (colorArr[1] << 8) + (+colorArr[2])).toString(16).slice(1);
}
}
/**
* Map value to color. Faster than mapToColor methods because color is represented by rgba array
* @param {number} normalizedValue A float between 0 and 1.
* @param {Array.<Array.<number>>} colors List of rgba color array
* @param {Array.<number>} [out] Mapped gba color array
* @return {Array.<number>}
*/
function fastMapToColor(normalizedValue, colors, out) {
if (!(colors && colors.length)
|| !(normalizedValue >= 0 && normalizedValue <= 1)
) {
return;
}
out = out || [0, 0, 0, 0];
var value = normalizedValue * (colors.length - 1);
var leftIndex = Math.floor(value);
var rightIndex = Math.ceil(value);
var leftColor = colors[leftIndex];
var rightColor = colors[rightIndex];
var dv = value - leftIndex;
out[0] = clampCssByte(lerp(leftColor[0], rightColor[0], dv));
out[1] = clampCssByte(lerp(leftColor[1], rightColor[1], dv));
out[2] = clampCssByte(lerp(leftColor[2], rightColor[2], dv));
out[3] = clampCssByte(lerp(leftColor[3], rightColor[3], dv));
return out;
}
/**
* @param {number} normalizedValue A float between 0 and 1.
* @param {Array.<string>} colors Color list.
* @param {boolean=} fullOutput Default false.
* @return {(string|Object)} Result color. If fullOutput,
* return {color: ..., leftIndex: ..., rightIndex: ..., value: ...},
* @memberOf module:zrender/util/color
*/
function mapToColor(normalizedValue, colors, fullOutput) {
if (!(colors && colors.length)
|| !(normalizedValue >= 0 && normalizedValue <= 1)
) {
return;
}
var value = normalizedValue * (colors.length - 1);
var leftIndex = Math.floor(value);
var rightIndex = Math.ceil(value);
var leftColor = parse(colors[leftIndex]);
var rightColor = parse(colors[rightIndex]);
var dv = value - leftIndex;
var color = stringify(
[
clampCssByte(lerp(leftColor[0], rightColor[0], dv)),
clampCssByte(lerp(leftColor[1], rightColor[1], dv)),
clampCssByte(lerp(leftColor[2], rightColor[2], dv)),
clampCssFloat(lerp(leftColor[3], rightColor[3], dv))
],
'rgba'
);
return fullOutput
? {
color: color,
leftIndex: leftIndex,
rightIndex: rightIndex,
value: value
}
: color;
}
/**
* @param {string} color
* @param {number=} h 0 ~ 360, ignore when null.
* @param {number=} s 0 ~ 1, ignore when null.
* @param {number=} l 0 ~ 1, ignore when null.
* @return {string} Color string in rgba format.
* @memberOf module:zrender/util/color
*/
function modifyHSL(color, h, s, l) {
color = parse(color);
if (color) {
color = rgba2hsla(color);
h != null && (color[0] = clampCssAngle(h));
s != null && (color[1] = parseCssFloat(s));
l != null && (color[2] = parseCssFloat(l));
return stringify(hsla2rgba(color), 'rgba');
}
}
/**
* @param {string} color
* @param {number=} alpha 0 ~ 1
* @return {string} Color string in rgba format.
* @memberOf module:zrender/util/color
*/
function modifyAlpha(color, alpha) {
color = parse(color);
if (color && alpha != null) {
color[3] = clampCssFloat(alpha);
return stringify(color, 'rgba');
}
}
/**
* @param {Array.<string>} colors Color list.
* @param {string} type 'rgba', 'hsva', ...
* @return {string} Result color.
*/
function stringify(arrColor, type) {
if (type === 'rgb' || type === 'hsv' || type === 'hsl') {
arrColor = arrColor.slice(0, 3);
}
return type + '(' + arrColor.join(',') + ')';
}
return {
parse: parse,
lift: lift,
toHex: toHex,
fastMapToColor: fastMapToColor,
mapToColor: mapToColor,
modifyHSL: modifyHSL,
modifyAlpha: modifyAlpha,
stringify: stringify
};
});
Zerion Mini Shell 1.0