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21_22-J-02
Commit aa7a7fdb authored by Chathurdi Vibhuda's avatar Chathurdi Vibhuda
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feat:color detection backend files.

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BE-Aeasthatic-Quality-Check/colorcube-master/assets/js/colorcube.js 0 → 100644
View file @ aa7a7fdb
const AAANORMALRATIO = 7.0;
const AANORMALRATIO = 4.5;
const AALARGERATIO = 3.0;
var colorArray = [];
// Decimal Rounding: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/round
(function() {
/**
* Decimal adjustment of a number.
*
* @param {String} type The type of adjustment.
* @param {Number} value The number.
* @param {Integer} exp The exponent (the 10 logarithm of the adjustment base).
* @returns {Number} The adjusted value.
*/
function decimalAdjust(type, value, exp) {
// If the exp is undefined or zero...
if (typeof exp === 'undefined' || +exp === 0) {
return Math[type](value);
}
value = +value;
exp = +exp;
// If the value is not a number or the exp is not an integer...
if (isNaN(value) || !(typeof exp === 'number' && exp % 1 === 0)) {
return NaN;
}
// If the value is negative...
if (value < 0) {
return -decimalAdjust(type, -value, exp);
}
// Shift
value = value.toString().split('e');
value = Math[type](+(value[0] + 'e' + (value[1] ? (+value[1] - exp) : -exp)));
// Shift back
value = value.toString().split('e');
return +(value[0] + 'e' + (value[1] ? (+value[1] + exp) : exp));
}
// Decimal round
if (!Math.round10) {
Math.round10 = function(value, exp) {
return decimalAdjust('round', value, exp);
};
}
// Decimal floor
if (!Math.floor10) {
Math.floor10 = function(value, exp) {
return decimalAdjust('floor', value, exp);
};
}
// Decimal ceil
if (!Math.ceil10) {
Math.ceil10 = function(value, exp) {
return decimalAdjust('ceil', value, exp);
};
}
})();
function round(number) {
return Math.round(number);
}
// Preserves a place after the decimal
function round2places(number) {
return (Math.round(number * 100) / 100).toFixed(2);
}
function decimalToPercent(number) {
return Math.round(number * 100);
}
function getRoundedRatio(color1, color2) {
var ratio = tinycolor.readability(color1, color2);
return round2places(ratio);
}
function outputRatio(color, ratio, bg, target, editable, iterator) {
// Default values: AA normal and AAA large with failing grades
var color = tinycolor(color),
hex = color.toHexString(),
background = tinycolor(bg),
bghex = background.toHexString(),
passfail = 'fail',
output = '',
targetclass = 'target-45',
icontent = '&#x2718;', // x mark
swatchcontent = '<p class="level--AA">AA</p><span class="level--AAAplus">AAA</span> 24px',
difference = 0;
// Check for passing grades
if ( ratio >= (target + 0.5) ) {
// It passes if the ratio is greater than our constant plus 0.5 for gamma correction
passfail = 'pass';
icontent = '&#x2714;'; // check mark
} else if ( ratio <= (target + 0.5) && ratio > target ) {
// It barely passes if the ratio is less than our constant plus 0.5 for gamma correction
// AND greater than the constant. So, within 0.5.
passfail = 'edge';
icontent = '&#x2714;'; // &#x203C; double exclamation
}
// Check target ratios
if ( target == AAANORMALRATIO ) {
targetclass = 'target-7'
swatchcontent = '<p class="level--AAA">AAA</p>';
}
if ( target == AALARGERATIO ) {
targetclass = 'target-3'
swatchcontent = '<span class="level--AAplus">AA</span> 24px';
}
difference = round2places( (ratio - target), -1 );
if ( editable === true ) {
var output =
`<div class="color-ratio__wrapper ${targetclass} ${passfail}" title="Criteria needed minimum ${target}">
<p class="color-ratio__label"><strong>${ratio}</strong>: with <input class="cc__form__input adjust-custom" id="test-color-${iterator}" name="test-color-${iterator}" type="text" value="${hex}" data-target="${iterator}" data-color="${bghex}" /></p>
<div class="color-ratio__swatch color-ratio-swatch-${iterator}" style="color: ${bghex}; border-color: ${bghex}; background-color: ${hex};">${swatchcontent}</div>
<p class="color-ratio__results">
<span class="icon">${icontent}</span>
<span class="color-ratio__passfail">
<b>${passfail}</b> ${difference}
</span>
</p>
</div>`;
} else {
var output =
`<div class="color-ratio__wrapper ${targetclass} ${passfail}" title="Criteria needed minimum ${target}">
<p class="color-ratio__label"><strong>${ratio}</strong>: with ${bghex}</p>
<div class="color-ratio__swatch" style="color: ${bghex}; border-color: ${bghex}; background-color: ${hex};">${swatchcontent}</div>
<p class="color-ratio__results">
<span class="icon">${icontent}</span>
<span class="color-ratio__passfail">
<b>${passfail}</b> ${difference}
</span>
</p>
</div>`;
}
return output;
}
function outputAllRatios(color, light, dark) {
var ratio_onlight = getRoundedRatio(color, light),
ratio_ondark = getRoundedRatio(color, dark),
results = "";
results =
`<div class="results__col ratios__on-light">
${outputRatio(color, ratio_onlight, light, AAANORMALRATIO)}
${outputRatio(color, ratio_onlight, light, AANORMALRATIO)}
${outputRatio(color, ratio_onlight, light, AALARGERATIO)}
</div>
<div class="results__col ratios__on-dark">
${outputRatio(color, ratio_ondark, dark, AAANORMALRATIO)}
${outputRatio(color, ratio_ondark, dark, AANORMALRATIO)}
${outputRatio(color, ratio_ondark, dark, AALARGERATIO)}
</div>`;
return results;
}
function outputCustomRatios(color, ratio, bg, iterator) {
var results = outputRatio(color, ratio, bg, AAANORMALRATIO, true, iterator);
results = results + outputRatio(color, ratio, bg, AANORMALRATIO, true, iterator);
results = results + outputRatio(color, ratio, bg, AALARGERATIO, true, iterator);
return results;
}
var button = document.querySelector('#brand-color-button');
button.onclick = function(e) {
e.preventDefault();
var resultsBlock = document.getElementById('results-content'),
results = document.getElementById('results-output'),
white = tinycolor(document.querySelector('#white-value').value),
black = tinycolor(document.querySelector('#black-value').value);
// if there are already results displayed, clear them
if ( results.children.length > 1 ) {
results.innerHTML = '';
}
// Set the header row
results.innerHTML =
`<div class="results__row results__row__header">
<div class="results__col ratios__original">Original</div>
<div class="results__col ratios__mod"><b>Modify</b></div>
<div class="results__col ratios__on-light">With light</div>
<div class="results__col ratios__on-dark">With dark</div>
<div class="results__col ratios__custom">Most legible or Custom</div>
</div>`;
// var ids = ['ts0', 'ts1', 'ts2'];
// for(var i = 0; i < ids.length; i++) {
// document.getElementById(ids[i]).value = document.getElementById('merged').value;
// }
// get the colors inputted by the user
var stringInput = document.querySelector('#txtArea').value;
// if there's no input, get outta here
if ( stringInput == '' ) {
return;
}
// turn it into an array
colorArray = stringInput.split("\n");
for (var i = 0; i < colorArray.length; i++) {
// get the color's contrast ratios
var most_legible = tinycolor.mostReadable(colorArray[i], colorArray),
ratio_mostlegible = getRoundedRatio(most_legible, colorArray[i]),
color = tinycolor(colorArray[i]),
hex = color.toHex(),
hashhex = color.toHexString(),
hslColor = color.toHsl();
// outputRatio( {color & border color}, ratio, {background color}, {ratio to test against} )
results.innerHTML +=
`<div class="results__row">
<div class="results__col ratios__original">
<p class="original__label">${hashhex}</p>
<div class="original__hsl">
<p title="Hue"><b>H:</b> ${round(hslColor.h)}</p>
<p title="Saturation"><b>S:</b> ${decimalToPercent(hslColor.s)}</p>
<p title="Lightness"><b>L:</b> ${decimalToPercent(hslColor.l)}</p>
</div>
<div class="original__swatch" style="background-color: ${hashhex};"></div>
</div>
<div class="results__col ratios__mod">
<p class="mod__label mod-label-${i}">${hashhex}</p>
<div class="mod__swatch mod-swatch-${i}" style="background-color: ${hashhex};"></div>
<div class="mod__controls">
<p class="mod__hue"><label for="adjust-hue-${i}">H</label><input type="number" class="cc__form__input adjust-hue" data-target="${i}" data-color="${hex}" id="adjust-hue-${i}" name="adjust-hue-${i}" value="${round(hslColor.h)}" min="0" max="360" /></p>
<p class="mod__saturation"><label for="adjust-sat-${i}">S</label><input type="number" class="cc__form__input adjust-sat" data-target="${i}" data-color="${hex}" id="adjust-sat-${i}" name="adjust-sat-${i}" value="${decimalToPercent(hslColor.s)}" min="0" max="100" /></p>
<p class="mod__lightness"><label for="adjust-lig-${i}">L</label><input type="number" class="cc__form__input adjust-lig" data-target="${i}" data-color="${hex}" id="adjust-lig-${i}" name="adjust-lig-${i}" value="${decimalToPercent(hslColor.l)}" min="0" max="100" /></p>
</div>
</div>
<div class="results__row">
<div id="row-${i}" class="results__row">
${outputAllRatios(colorArray[i], white, black)}
</div>
<div id="custom-pair-${i}" class="results__col ratios__custom">
${outputCustomRatios(most_legible, ratio_mostlegible, colorArray[i], i)}
</div>
</div>
</div>`;
}
// make the results content visible
resultsBlock.style.display = 'block';
resultsBlock.style.visibility = 'visible';
// jump to the results
window.location.href = '#results-content';
}
// Adjust Hue, Saturation, or Lightness
$(document).on("change paste keyup blur", ".adjust-hue, .adjust-sat, .adjust-lig", function() {
var target = $(this).data("target"),
color = $(this).data("color"),
newValue = $(this).val(),
originalColor = tinycolor(color).toHsl(),
newColorHSL = '';
// Adjust the color based on the class of the input
if ( $(this).hasClass('adjust-hue') ) {
newColorHSL = tinycolor("hsl(" + newValue + "," + originalColor.s + ", " + originalColor.l + ")");
} else if ( $(this).hasClass('adjust-sat') ) {
newColorHSL = tinycolor("hsl(" + originalColor.h + "," + newValue + ", " + originalColor.l + ")");
} else {
newColorHSL = tinycolor("hsl(" + originalColor.h + "," + originalColor.s + ", " + newValue + ")");
}
var newColorRAW = newColorHSL.toHex(),
newColor = newColorHSL.toHexString(),
targetSwatch = $('.mod-swatch-' + target),
targetContainer = $('#row-' + target),
customContainer = $('#custom-pair-' + target),
white = tinycolor(document.querySelector('#white-value').value),
black = tinycolor(document.querySelector('#black-value').value),
custom = tinycolor(document.querySelector('#test-color-' + target).value),
ratio_custom = getRoundedRatio(custom, newColor);
// Change the starting color on the inputs, stored in data-color
var inputs = $("input[data-target=" + target + "]");
inputs.each(function() {
$(this).data('color', newColorRAW);
});
$('.mod-label-' + target).html(newColor);
// Change the swatch
targetSwatch.css("background-color", newColor);
// Change the contents of the light/dark outputs
//console.log(newColor);
targetContainer.html('');
targetContainer.html(outputAllRatios(newColor, white, black));
// Change the contents of the Custom column
customContainer.html('');
customContainer.html(outputCustomRatios(custom, ratio_custom, newColor, target));
});
// If a custom color is supplied, redo the custom color test
$(document).on("blur", ".adjust-custom", function() {
var target = $(this).data("target"),
color = tinycolor($(this).data("color")),
newColor = tinycolor($(this).val()),
ratio_custom = getRoundedRatio(color, newColor),
customContainer = $('#custom-pair-' + target);
// Change the contents of the Custom column
customContainer.html('');
customContainer.html(outputCustomRatios(newColor, ratio_custom, color, target));
});
$(function () {
var arrInitial;
$(".inputField").on('focus', function () {
arrInitial = [];
$(".inputField").each(function () { arrInitial.push($(this).val()); })
});
$(".inputField").on('blur', function () {
//If text area is blank then update all input values
if ($.trim($("#txtArea").val()) === "") {
var inputValues = "";
$(".inputField").each(function () { inputValues += "\n" + $(this).val(); })
$("#txtArea").val($.trim(inputValues));
}
else {
//Get existing values from text area and split by " "
var arrData = $("#txtArea").val().split(" ");
var arr = arrData.filter(function(v){return v!==''});
var arrNew = [];
$(".inputField").each(function (i) {
if (arr[i] === arrInitial[i]) //Check against initial values in text fields
arrNew.push($.trim($(this).val()));
else
arrNew.push(arr[i]);
});
$("#txtArea").val(arrNew.join(" "));
}
})
});
BE-Aeasthatic-Quality-Check/colorcube-master/assets/js/detection.js 0 → 100644
View file @ aa7a7fdb
/**
* @author Cassidy Williams
*/
/*
*
* This is for uploading files to the page, standard HTML5 jazz.
*
* */
function handleFileSelect(evt)
{
var files = evt.target.files;
// Loop through the FileList and render image files as thumbnails
for (var i = 0, f; f = files[i]; i++)
{
// Only process image files
if (!f.type.match('image.*'))
{
continue;
}
var reader = new FileReader();
// Capture the file info
reader.onload = (function(theFile)
{
return function(e)
{
// Render thumbnail.
var span = document.createElement('span');
span.innerHTML = ['<img class="thumb" onclick="javascript:analyze(this, event);" src="', e.target.result, '" title="', escape(theFile.name), '"/>'].join('');
document.getElementById('list').insertBefore(span, null);
};
})(f);
// Read the image file as data URL
reader.readAsDataURL(f);
}
var message = document.getElementById('message');
message.innerHTML = 'Click any image to get theme colors!';
}
/*
* This portion was created by referencing the article
* "Using python and k-means to find the dominant colors in images"
* By Charles Leifer
* */
// You can see the Python version of this in Charles Leifer's article
function euclidean(point1, point2)
{
var s = 0;
for (var i = 0, l = point1.length; i < l; i++)
{
s += Math.pow(point1[i] - point2[i], 2)
}
return Math.sqrt(s);
}
// There are various ways to convert rgb to hex, I found this on Stack Overflow.
function rgbToHex(rgb)
{
function toHex(c)
{
var hex = parseInt(c).toString(16);
return hex.length == 1 ? '0' + hex : hex;
}
return '#' + toHex(rgb[0]) + toHex(rgb[1]) + toHex(rgb[2]);
}
function calculateCenter(points, n)
{
var values = []
// Here we're populating the values array with 0s just so we know what size it should be (n)
for (var i = 0; i < n; i++)
{
values.push(0);
}
var plength = 0;
for (var i = 0, l = points.length; i < l; i++)
{
plength++;
for (var j = 0; j < n; j++)
{
values[j] += points[i][j];
}
}
// Using the average to get the centers
for (var i = 0; i < n; i++)
{
values[i] = values[i] / plength;
}
return values;
}
// I basically just took this from Charles Leifer.
function k_mean(points, k, min_diff)
{
plength = points.length;
colorGroup = [];
seen = [];
while (colorGroup.length < k)
{
idx = parseInt(Math.random() * plength);
found = false;
for (var i = 0; i < seen.length; i++)
{
if (idx === seen[i])
{
found = true;
break;
}
}
if (!found)
{
seen.push(idx);
colorGroup.push([points[idx], [points[idx]]]);
}
}
while (true)
{
plists = [];
for (var i = 0; i < k; i++)
{
plists.push([]);
}
for (var j = 0; j < plength; j++)
{
var p = points[j], smallest_distance = 10000000, idx = 0;
for (var i = 0; i < k; i++)
{
var distance = euclidean(p, colorGroup[i][0]);
if (distance < smallest_distance)
{
smallest_distance = distance;
idx = i;
}
}
plists[idx].push(p);
}
var diff = 0;
for (var i = 0; i < k; i++)
{
var old = colorGroup[i], list = plists[i], center = calculateCenter(plists[i], 3), new_cluster = [center, (plists[i])], dist = euclidean(old[0], center);
colorGroup[i] = new_cluster
diff = diff > dist ? diff : dist;
}
if (diff < min_diff)
{
break;
}
}
return colorGroup;
}
// Here's where we to actual interaction with the webpage
function processimg(img, canvaselement)
{
var points = [];
// Drawing the given image onto a canvas 250x250 in size
canvaselement.drawImage(img, 0, 0, 250, 250);
// Getting data from said canvas. This *DOES* get every pixel in the image.
// Luckily, it's fast.
dataCanvas = canvaselement.getImageData(0, 0, 250, 250).data;
// Populating the points array with colors from the image
for (var i = 0, l = dataCanvas.length; i < l; i += 4)
{
var r = dataCanvas[i], g = dataCanvas[i + 1], b = dataCanvas[i + 2];
points.push([r, g, b]);
}
var totals = k_mean(points, 3, 1), hex = [];
// If you try and convert the RGB to Hex directly here, it takes FOREVER,
// but if you have the helper method above, it works fast. Strange.
for (var i = 0; i < totals.length; i++)
{
hex.push(rgbToHex(totals[i][0]));
}
return hex;
}
function pick(img, canvaselement, x, y)
{
var pickedColor = "hay";
xx = x;
yy = y;
var imgData = canvaselement.getImageData(xx, yy, 1, 1).data;
pickedColor = rgbToHex(imgData);
return pickedColor;
}
// This is called when the user clicks an image.
function analyze(img_elem, event)
{
// This is getting the canvas from the page and the image in it
canvaselement = document.getElementById('canvas').getContext('2d'), img = new Image();
//var coords = relMouseCoords(document.getElementById('canvas'), event);
img.onload = function()
{
var message = document.getElementById('message');
//Hopefully we'll never see the "Loading..." message but it's here just in case
message.innerHTML = 'Loading...';
var colors = processimg(img, canvaselement);
// Showing the message of processing the image to the user
message.innerHTML = 'Theme Colors';
console.log(colors.length, 'length');
document.getElementById('ts0').value = colors[0];
document.getElementById('ts1').value = colors[1];
document.getElementById('ts2').value = colors[2];
document.getElementById('ts3').value = colorfun;
document.getElementById('color1').style.backgroundColor = colors[0];
document.getElementById('color1').innerHTML = colors[0];
document.getElementById('color2').style.backgroundColor = colors[1];
document.getElementById('color2').innerHTML = colors[1];
document.getElementById('color3').style.backgroundColor = colors[2];
document.getElementById('color3').innerHTML = colors[2];
var colorfun = pick(img, canvaselement, event.offsetX, event.offsetY);
// pass in coordinates
document.getElementById('pickedColor').style.backgroundColor = colorfun;
document.getElementById('pickedColor').innerHTML = colorfun;
document.getElementById('scheme').style.display="block";
createSwatches(colorfun);
}
img.src = img_elem.src;
}
// This is for the swatches that are generated from the picked color.
function createSwatches(hex)
{
nHex = hex;
// The light and dark values could potentially be changed so colors are changed based on these hues.
// It's this way just in case we expand it to include such functionality.
var lightRGB = new Array(255, 255, 255);
var darkRGB = new Array(0, 0, 0);
var colorValues = new Array();
var swatch = new Array();
baseColor = hexToRGB(nHex);
opArray = new Array(1.0, .75, .50, .25, .10, .85, .75, .50, .25, .10);
for ( i = 0; i < 10; i++)
{
nMask = i < 5 ? lightRGB : darkRGB;
nColor = setColorHue(baseColor, opArray[i], nMask);
nHex = toHex(nColor[0]) + toHex(nColor[1]) + toHex(nColor[2]);
colorValues[i] = new Array();
colorValues[i][0] = nHex;
colorValues[i][1] = nColor;
// Actually putting the swatches on the page
document.getElementById("s"+i).style.backgroundColor = "#" + nHex;
}
}
// Actually crating the hues with different lightness
function setColorHue(originColor, opacityPercent, maskRGB)
{
returnColor = new Array();
for ( w = 0; w < originColor.length; w++)
returnColor[w] = Math.round(originColor[w] * opacityPercent) + Math.round(maskRGB[w] * (1.0 - opacityPercent));
return returnColor;
}
// Helper method for sonverting to HEX
function toHex(dec) {
hex=dec.toString(16);
if(hex.length==1)hex="0"+hex;
if(hex==100)hex="FF";
return hex.toUpperCase();
}
//Converting HEX to RGB
function hexToRGB(hex)
{
var r = hexToR(hex);
var g = hexToG(hex);
var b = hexToB(hex);
function hexToR(h)
{
return parseInt((cutHex(h)).substring(0, 2), 16)
}
function hexToG(h)
{
return parseInt((cutHex(h)).substring(2, 4), 16)
}
function hexToB(h)
{
return parseInt((cutHex(h)).substring(4, 6), 16)
}
function cutHex(h)
{
return (h.charAt(0) == "#") ? h.substring(1, 7) : h
}
return new Array(r, g, b);
}
// This is currently not used. Maybe if we start playing with hues and everything, it'll be useful!
/*
function HueShift(h,s) {
h+=s;
while (h>=360.0) h-=360.0;
while (h<0.0) h+=360.0;
return h;
}
function convertToHSV(hex)
{
var r = hexToR(hex);
var g = hexToG(hex);
var b = hexToB(hex);
function hexToR(h)
{
return parseInt((cutHex(h)).substring(0, 2), 16)
}
function hexToG(h)
{
return parseInt((cutHex(h)).substring(2, 4), 16)
}
function hexToB(h)
{
return parseInt((cutHex(h)).substring(4, 6), 16)
}
function cutHex(h)
{
return (h.charAt(0) == "#") ? h.substring(1, 7) : h
}
var computedH = 0;
var computedS = 0;
var computedV = 0;
r = r / 255;
g = g / 255;
b = b / 255;
var minRGB = Math.min(r, Math.min(g, b));
var maxRGB = Math.max(r, Math.max(g, b));
// Black-gray-white
if (minRGB == maxRGB)
{
computedV = minRGB;
return [0, 0, computedV];
}
// Colors other than black-gray-white:
var d = (r == minRGB) ? g - b : ((b == minRGB) ? r - g : b - r);
var h = (r == minRGB) ? 3 : ((b == minRGB) ? 1 : 5);
computedH = 60 * (h - d / (maxRGB - minRGB));
computedS = (maxRGB - minRGB) / maxRGB;
computedV = maxRGB;
return [computedH, computedS, computedV];
}
*/
\ No newline at end of file
BE-Aeasthatic-Quality-Check/colorcube-master/assets/js/tinycolor.js 0 → 100644
View file @ aa7a7fdb
// TinyColor v1.4.1
// https://github.com/bgrins/TinyColor
// Brian Grinstead, MIT License
(function(Math) {
var trimLeft = /^\s+/,
trimRight = /\s+$/,
tinyCounter = 0,
mathRound = Math.round,
mathMin = Math.min,
mathMax = Math.max,
mathRandom = Math.random;
function tinycolor (color, opts) {
color = (color) ? color : '';
opts = opts || { };
// If input is already a tinycolor, return itself
if (color instanceof tinycolor) {
return color;
}
// If we are called as a function, call using new instead
if (!(this instanceof tinycolor)) {
return new tinycolor(color, opts);
}
var rgb = inputToRGB(color);
this._originalInput = color,
this._r = rgb.r,
this._g = rgb.g,
this._b = rgb.b,
this._a = rgb.a,
this._roundA = mathRound(100*this._a) / 100,
this._format = opts.format || rgb.format;
this._gradientType = opts.gradientType;
// Don't let the range of [0,255] come back in [0,1].
// Potentially lose a little bit of precision here, but will fix issues where
// .5 gets interpreted as half of the total, instead of half of 1
// If it was supposed to be 128, this was already taken care of by `inputToRgb`
if (this._r < 1) { this._r = mathRound(this._r); }
if (this._g < 1) { this._g = mathRound(this._g); }
if (this._b < 1) { this._b = mathRound(this._b); }
this._ok = rgb.ok;
this._tc_id = tinyCounter++;
}
tinycolor.prototype = {
isDark: function() {
return this.getBrightness() < 128;
},
isLight: function() {
return !this.isDark();
},
isValid: function() {
return this._ok;
},
getOriginalInput: function() {
return this._originalInput;
},
getFormat: function() {
return this._format;
},
getAlpha: function() {
return this._a;
},
getBrightness: function() {
//http://www.w3.org/TR/AERT#color-contrast
var rgb = this.toRgb();
return (rgb.r * 299 + rgb.g * 587 + rgb.b * 114) / 1000;
},
getLuminance: function() {
//http://www.w3.org/TR/2008/REC-WCAG20-20081211/#relativeluminancedef
var rgb = this.toRgb();
var RsRGB, GsRGB, BsRGB, R, G, B;
RsRGB = rgb.r/255;
GsRGB = rgb.g/255;
BsRGB = rgb.b/255;
if (RsRGB <= 0.03928) {R = RsRGB / 12.92;} else {R = Math.pow(((RsRGB + 0.055) / 1.055), 2.4);}
if (GsRGB <= 0.03928) {G = GsRGB / 12.92;} else {G = Math.pow(((GsRGB + 0.055) / 1.055), 2.4);}
if (BsRGB <= 0.03928) {B = BsRGB / 12.92;} else {B = Math.pow(((BsRGB + 0.055) / 1.055), 2.4);}
return (0.2126 * R) + (0.7152 * G) + (0.0722 * B);
},
setAlpha: function(value) {
this._a = boundAlpha(value);
this._roundA = mathRound(100*this._a) / 100;
return this;
},
toHsv: function() {
var hsv = rgbToHsv(this._r, this._g, this._b);
return { h: hsv.h * 360, s: hsv.s, v: hsv.v, a: this._a };
},
toHsvString: function() {
var hsv = rgbToHsv(this._r, this._g, this._b);
var h = mathRound(hsv.h * 360), s = mathRound(hsv.s * 100), v = mathRound(hsv.v * 100);
return (this._a == 1) ?
"hsv(" + h + ", " + s + "%, " + v + "%)" :
"hsva(" + h + ", " + s + "%, " + v + "%, "+ this._roundA + ")";
},
toHsl: function() {
var hsl = rgbToHsl(this._r, this._g, this._b);
return { h: hsl.h * 360, s: hsl.s, l: hsl.l, a: this._a };
},
toHslString: function() {
var hsl = rgbToHsl(this._r, this._g, this._b);
var h = mathRound(hsl.h * 360), s = mathRound(hsl.s * 100), l = mathRound(hsl.l * 100);
return (this._a == 1) ?
"hsl(" + h + ", " + s + "%, " + l + "%)" :
"hsla(" + h + ", " + s + "%, " + l + "%, "+ this._roundA + ")";
},
toHex: function(allow3Char) {
return rgbToHex(this._r, this._g, this._b, allow3Char);
},
toHexString: function(allow3Char) {
return '#' + this.toHex(allow3Char);
},
toHex8: function(allow4Char) {
return rgbaToHex(this._r, this._g, this._b, this._a, allow4Char);
},
toHex8String: function(allow4Char) {
return '#' + this.toHex8(allow4Char);
},
toRgb: function() {
return { r: mathRound(this._r), g: mathRound(this._g), b: mathRound(this._b), a: this._a };
},
toRgbString: function() {
return (this._a == 1) ?
"rgb(" + mathRound(this._r) + ", " + mathRound(this._g) + ", " + mathRound(this._b) + ")" :
"rgba(" + mathRound(this._r) + ", " + mathRound(this._g) + ", " + mathRound(this._b) + ", " + this._roundA + ")";
},
toPercentageRgb: function() {
return { r: mathRound(bound01(this._r, 255) * 100) + "%", g: mathRound(bound01(this._g, 255) * 100) + "%", b: mathRound(bound01(this._b, 255) * 100) + "%", a: this._a };
},
toPercentageRgbString: function() {
return (this._a == 1) ?
"rgb(" + mathRound(bound01(this._r, 255) * 100) + "%, " + mathRound(bound01(this._g, 255) * 100) + "%, " + mathRound(bound01(this._b, 255) * 100) + "%)" :
"rgba(" + mathRound(bound01(this._r, 255) * 100) + "%, " + mathRound(bound01(this._g, 255) * 100) + "%, " + mathRound(bound01(this._b, 255) * 100) + "%, " + this._roundA + ")";
},
toName: function() {
if (this._a === 0) {
return "transparent";
}
if (this._a < 1) {
return false;
}
return hexNames[rgbToHex(this._r, this._g, this._b, true)] || false;
},
toFilter: function(secondColor) {
var hex8String = '#' + rgbaToArgbHex(this._r, this._g, this._b, this._a);
var secondHex8String = hex8String;
var gradientType = this._gradientType ? "GradientType = 1, " : "";
if (secondColor) {
var s = tinycolor(secondColor);
secondHex8String = '#' + rgbaToArgbHex(s._r, s._g, s._b, s._a);
}
return "progid:DXImageTransform.Microsoft.gradient("+gradientType+"startColorstr="+hex8String+",endColorstr="+secondHex8String+")";
},
toString: function(format) {
var formatSet = !!format;
format = format || this._format;
var formattedString = false;
var hasAlpha = this._a < 1 && this._a >= 0;
var needsAlphaFormat = !formatSet && hasAlpha && (format === "hex" || format === "hex6" || format === "hex3" || format === "hex4" || format === "hex8" || format === "name");
if (needsAlphaFormat) {
// Special case for "transparent", all other non-alpha formats
// will return rgba when there is transparency.
if (format === "name" && this._a === 0) {
return this.toName();
}
return this.toRgbString();
}
if (format === "rgb") {
formattedString = this.toRgbString();
}
if (format === "prgb") {
formattedString = this.toPercentageRgbString();
}
if (format === "hex" || format === "hex6") {
formattedString = this.toHexString();
}
if (format === "hex3") {
formattedString = this.toHexString(true);
}
if (format === "hex4") {
formattedString = this.toHex8String(true);
}
if (format === "hex8") {
formattedString = this.toHex8String();
}
if (format === "name") {
formattedString = this.toName();
}
if (format === "hsl") {
formattedString = this.toHslString();
}
if (format === "hsv") {
formattedString = this.toHsvString();
}
return formattedString || this.toHexString();
},
clone: function() {
return tinycolor(this.toString());
},
_applyModification: function(fn, args) {
var color = fn.apply(null, [this].concat([].slice.call(args)));
this._r = color._r;
this._g = color._g;
this._b = color._b;
this.setAlpha(color._a);
return this;
},
lighten: function() {
return this._applyModification(lighten, arguments);
},
brighten: function() {
return this._applyModification(brighten, arguments);
},
darken: function() {
return this._applyModification(darken, arguments);
},
desaturate: function() {
return this._applyModification(desaturate, arguments);
},
saturate: function() {
return this._applyModification(saturate, arguments);
},
greyscale: function() {
return this._applyModification(greyscale, arguments);
},
spin: function() {
return this._applyModification(spin, arguments);
},
_applyCombination: function(fn, args) {
return fn.apply(null, [this].concat([].slice.call(args)));
},
analogous: function() {
return this._applyCombination(analogous, arguments);
},
complement: function() {
return this._applyCombination(complement, arguments);
},
monochromatic: function() {
return this._applyCombination(monochromatic, arguments);
},
splitcomplement: function() {
return this._applyCombination(splitcomplement, arguments);
},
triad: function() {
return this._applyCombination(triad, arguments);
},
tetrad: function() {
return this._applyCombination(tetrad, arguments);
}
};
// If input is an object, force 1 into "1.0" to handle ratios properly
// String input requires "1.0" as input, so 1 will be treated as 1
tinycolor.fromRatio = function(color, opts) {
if (typeof color == "object") {
var newColor = {};
for (var i in color) {
if (color.hasOwnProperty(i)) {
if (i === "a") {
newColor[i] = color[i];
}
else {
newColor[i] = convertToPercentage(color[i]);
}
}
}
color = newColor;
}
return tinycolor(color, opts);
};
// Given a string or object, convert that input to RGB
// Possible string inputs:
//
// "red"
// "#f00" or "f00"
// "#ff0000" or "ff0000"
// "#ff000000" or "ff000000"
// "rgb 255 0 0" or "rgb (255, 0, 0)"
// "rgb 1.0 0 0" or "rgb (1, 0, 0)"
// "rgba (255, 0, 0, 1)" or "rgba 255, 0, 0, 1"
// "rgba (1.0, 0, 0, 1)" or "rgba 1.0, 0, 0, 1"
// "hsl(0, 100%, 50%)" or "hsl 0 100% 50%"
// "hsla(0, 100%, 50%, 1)" or "hsla 0 100% 50%, 1"
// "hsv(0, 100%, 100%)" or "hsv 0 100% 100%"
//
function inputToRGB(color) {
var rgb = { r: 0, g: 0, b: 0 };
var a = 1;
var s = null;
var v = null;
var l = null;
var ok = false;
var format = false;
if (typeof color == "string") {
color = stringInputToObject(color);
}
if (typeof color == "object") {
if (isValidCSSUnit(color.r) && isValidCSSUnit(color.g) && isValidCSSUnit(color.b)) {
rgb = rgbToRgb(color.r, color.g, color.b);
ok = true;
format = String(color.r).substr(-1) === "%" ? "prgb" : "rgb";
}
else if (isValidCSSUnit(color.h) && isValidCSSUnit(color.s) && isValidCSSUnit(color.v)) {
s = convertToPercentage(color.s);
v = convertToPercentage(color.v);
rgb = hsvToRgb(color.h, s, v);
ok = true;
format = "hsv";
}
else if (isValidCSSUnit(color.h) && isValidCSSUnit(color.s) && isValidCSSUnit(color.l)) {
s = convertToPercentage(color.s);
l = convertToPercentage(color.l);
rgb = hslToRgb(color.h, s, l);
ok = true;
format = "hsl";
}
if (color.hasOwnProperty("a")) {
a = color.a;
}
}
a = boundAlpha(a);
return {
ok: ok,
format: color.format || format,
r: mathMin(255, mathMax(rgb.r, 0)),
g: mathMin(255, mathMax(rgb.g, 0)),
b: mathMin(255, mathMax(rgb.b, 0)),
a: a
};
}
// Conversion Functions
// --------------------
// `rgbToHsl`, `rgbToHsv`, `hslToRgb`, `hsvToRgb` modified from:
// <http://mjijackson.com/2008/02/rgb-to-hsl-and-rgb-to-hsv-color-model-conversion-algorithms-in-javascript>
// `rgbToRgb`
// Handle bounds / percentage checking to conform to CSS color spec
// <http://www.w3.org/TR/css3-color/>
// *Assumes:* r, g, b in [0, 255] or [0, 1]
// *Returns:* { r, g, b } in [0, 255]
function rgbToRgb(r, g, b){
return {
r: bound01(r, 255) * 255,
g: bound01(g, 255) * 255,
b: bound01(b, 255) * 255
};
}
// `rgbToHsl`
// Converts an RGB color value to HSL.
// *Assumes:* r, g, and b are contained in [0, 255] or [0, 1]
// *Returns:* { h, s, l } in [0,1]
function rgbToHsl(r, g, b) {
r = bound01(r, 255);
g = bound01(g, 255);
b = bound01(b, 255);
var max = mathMax(r, g, b), min = mathMin(r, g, b);
var h, s, l = (max + min) / 2;
if(max == min) {
h = s = 0; // achromatic
}
else {
var d = max - min;
s = l > 0.5 ? d / (2 - max - min) : d / (max + min);
switch(max) {
case r: h = (g - b) / d + (g < b ? 6 : 0); break;
case g: h = (b - r) / d + 2; break;
case b: h = (r - g) / d + 4; break;
}
h /= 6;
}
return { h: h, s: s, l: l };
}
// `hslToRgb`
// Converts an HSL color value to RGB.
// *Assumes:* h is contained in [0, 1] or [0, 360] and s and l are contained [0, 1] or [0, 100]
// *Returns:* { r, g, b } in the set [0, 255]
function hslToRgb(h, s, l) {
var r, g, b;
h = bound01(h, 360);
s = bound01(s, 100);
l = bound01(l, 100);
function hue2rgb(p, q, t) {
if(t < 0) t += 1;
if(t > 1) t -= 1;
if(t < 1/6) return p + (q - p) * 6 * t;
if(t < 1/2) return q;
if(t < 2/3) return p + (q - p) * (2/3 - t) * 6;
return p;
}
if(s === 0) {
r = g = b = l; // achromatic
}
else {
var q = l < 0.5 ? l * (1 + s) : l + s - l * s;
var p = 2 * l - q;
r = hue2rgb(p, q, h + 1/3);
g = hue2rgb(p, q, h);
b = hue2rgb(p, q, h - 1/3);
}
return { r: r * 255, g: g * 255, b: b * 255 };
}
// `rgbToHsv`
// Converts an RGB color value to HSV
// *Assumes:* r, g, and b are contained in the set [0, 255] or [0, 1]
// *Returns:* { h, s, v } in [0,1]
function rgbToHsv(r, g, b) {
r = bound01(r, 255);
g = bound01(g, 255);
b = bound01(b, 255);
var max = mathMax(r, g, b), min = mathMin(r, g, b);
var h, s, v = max;
var d = max - min;
s = max === 0 ? 0 : d / max;
if(max == min) {
h = 0; // achromatic
}
else {
switch(max) {
case r: h = (g - b) / d + (g < b ? 6 : 0); break;
case g: h = (b - r) / d + 2; break;
case b: h = (r - g) / d + 4; break;
}
h /= 6;
}
return { h: h, s: s, v: v };
}
// `hsvToRgb`
// Converts an HSV color value to RGB.
// *Assumes:* h is contained in [0, 1] or [0, 360] and s and v are contained in [0, 1] or [0, 100]
// *Returns:* { r, g, b } in the set [0, 255]
function hsvToRgb(h, s, v) {
h = bound01(h, 360) * 6;
s = bound01(s, 100);
v = bound01(v, 100);
var i = Math.floor(h),
f = h - i,
p = v * (1 - s),
q = v * (1 - f * s),
t = v * (1 - (1 - f) * s),
mod = i % 6,
r = [v, q, p, p, t, v][mod],
g = [t, v, v, q, p, p][mod],
b = [p, p, t, v, v, q][mod];
return { r: r * 255, g: g * 255, b: b * 255 };
}
// `rgbToHex`
// Converts an RGB color to hex
// Assumes r, g, and b are contained in the set [0, 255]
// Returns a 3 or 6 character hex
function rgbToHex(r, g, b, allow3Char) {
var hex = [
pad2(mathRound(r).toString(16)),
pad2(mathRound(g).toString(16)),
pad2(mathRound(b).toString(16))
];
// Return a 3 character hex if possible
if (allow3Char && hex[0].charAt(0) == hex[0].charAt(1) && hex[1].charAt(0) == hex[1].charAt(1) && hex[2].charAt(0) == hex[2].charAt(1)) {
return hex[0].charAt(0) + hex[1].charAt(0) + hex[2].charAt(0);
}
return hex.join("");
}
// `rgbaToHex`
// Converts an RGBA color plus alpha transparency to hex
// Assumes r, g, b are contained in the set [0, 255] and
// a in [0, 1]. Returns a 4 or 8 character rgba hex
function rgbaToHex(r, g, b, a, allow4Char) {
var hex = [
pad2(mathRound(r).toString(16)),
pad2(mathRound(g).toString(16)),
pad2(mathRound(b).toString(16)),
pad2(convertDecimalToHex(a))
];
// Return a 4 character hex if possible
if (allow4Char && hex[0].charAt(0) == hex[0].charAt(1) && hex[1].charAt(0) == hex[1].charAt(1) && hex[2].charAt(0) == hex[2].charAt(1) && hex[3].charAt(0) == hex[3].charAt(1)) {
return hex[0].charAt(0) + hex[1].charAt(0) + hex[2].charAt(0) + hex[3].charAt(0);
}
return hex.join("");
}
// `rgbaToArgbHex`
// Converts an RGBA color to an ARGB Hex8 string
// Rarely used, but required for "toFilter()"
function rgbaToArgbHex(r, g, b, a) {
var hex = [
pad2(convertDecimalToHex(a)),
pad2(mathRound(r).toString(16)),
pad2(mathRound(g).toString(16)),
pad2(mathRound(b).toString(16))
];
return hex.join("");
}
// `equals`
// Can be called with any tinycolor input
tinycolor.equals = function (color1, color2) {
if (!color1 || !color2) { return false; }
return tinycolor(color1).toRgbString() == tinycolor(color2).toRgbString();
};
tinycolor.random = function() {
return tinycolor.fromRatio({
r: mathRandom(),
g: mathRandom(),
b: mathRandom()
});
};
// Modification Functions
// ----------------------
// Thanks to less.js for some of the basics here
// <https://github.com/cloudhead/less.js/blob/master/lib/less/functions.js>
function desaturate(color, amount) {
amount = (amount === 0) ? 0 : (amount || 10);
var hsl = tinycolor(color).toHsl();
hsl.s -= amount / 100;
hsl.s = clamp01(hsl.s);
return tinycolor(hsl);
}
function saturate(color, amount) {
amount = (amount === 0) ? 0 : (amount || 10);
var hsl = tinycolor(color).toHsl();
hsl.s += amount / 100;
hsl.s = clamp01(hsl.s);
return tinycolor(hsl);
}
function greyscale(color) {
return tinycolor(color).desaturate(100);
}
function lighten (color, amount) {
amount = (amount === 0) ? 0 : (amount || 10);
var hsl = tinycolor(color).toHsl();
hsl.l += amount / 100;
hsl.l = clamp01(hsl.l);
return tinycolor(hsl);
}
function brighten(color, amount) {
amount = (amount === 0) ? 0 : (amount || 10);
var rgb = tinycolor(color).toRgb();
rgb.r = mathMax(0, mathMin(255, rgb.r - mathRound(255 * - (amount / 100))));
rgb.g = mathMax(0, mathMin(255, rgb.g - mathRound(255 * - (amount / 100))));
rgb.b = mathMax(0, mathMin(255, rgb.b - mathRound(255 * - (amount / 100))));
return tinycolor(rgb);
}
function darken (color, amount) {
amount = (amount === 0) ? 0 : (amount || 10);
var hsl = tinycolor(color).toHsl();
hsl.l -= amount / 100;
hsl.l = clamp01(hsl.l);
return tinycolor(hsl);
}
// Spin takes a positive or negative amount within [-360, 360] indicating the change of hue.
// Values outside of this range will be wrapped into this range.
function spin(color, amount) {
var hsl = tinycolor(color).toHsl();
var hue = (hsl.h + amount) % 360;
hsl.h = hue < 0 ? 360 + hue : hue;
return tinycolor(hsl);
}
// Combination Functions
// ---------------------
// Thanks to jQuery xColor for some of the ideas behind these
// <https://github.com/infusion/jQuery-xcolor/blob/master/jquery.xcolor.js>
function complement(color) {
var hsl = tinycolor(color).toHsl();
hsl.h = (hsl.h + 180) % 360;
return tinycolor(hsl);
}
function triad(color) {
var hsl = tinycolor(color).toHsl();
var h = hsl.h;
return [
tinycolor(color),
tinycolor({ h: (h + 120) % 360, s: hsl.s, l: hsl.l }),
tinycolor({ h: (h + 240) % 360, s: hsl.s, l: hsl.l })
];
}
function tetrad(color) {
var hsl = tinycolor(color).toHsl();
var h = hsl.h;
return [
tinycolor(color),
tinycolor({ h: (h + 90) % 360, s: hsl.s, l: hsl.l }),
tinycolor({ h: (h + 180) % 360, s: hsl.s, l: hsl.l }),
tinycolor({ h: (h + 270) % 360, s: hsl.s, l: hsl.l })
];
}
function splitcomplement(color) {
var hsl = tinycolor(color).toHsl();
var h = hsl.h;
return [
tinycolor(color),
tinycolor({ h: (h + 72) % 360, s: hsl.s, l: hsl.l}),
tinycolor({ h: (h + 216) % 360, s: hsl.s, l: hsl.l})
];
}
function analogous(color, results, slices) {
results = results || 6;
slices = slices || 30;
var hsl = tinycolor(color).toHsl();
var part = 360 / slices;
var ret = [tinycolor(color)];
for (hsl.h = ((hsl.h - (part * results >> 1)) + 720) % 360; --results; ) {
hsl.h = (hsl.h + part) % 360;
ret.push(tinycolor(hsl));
}
return ret;
}
function monochromatic(color, results) {
results = results || 6;
var hsv = tinycolor(color).toHsv();
var h = hsv.h, s = hsv.s, v = hsv.v;
var ret = [];
var modification = 1 / results;
while (results--) {
ret.push(tinycolor({ h: h, s: s, v: v}));
v = (v + modification) % 1;
}
return ret;
}
// Utility Functions
// ---------------------
tinycolor.mix = function(color1, color2, amount) {
amount = (amount === 0) ? 0 : (amount || 50);
var rgb1 = tinycolor(color1).toRgb();
var rgb2 = tinycolor(color2).toRgb();
var p = amount / 100;
var rgba = {
r: ((rgb2.r - rgb1.r) * p) + rgb1.r,
g: ((rgb2.g - rgb1.g) * p) + rgb1.g,
b: ((rgb2.b - rgb1.b) * p) + rgb1.b,
a: ((rgb2.a - rgb1.a) * p) + rgb1.a
};
return tinycolor(rgba);
};
// Readability Functions
// ---------------------
// <http://www.w3.org/TR/2008/REC-WCAG20-20081211/#contrast-ratiodef (WCAG Version 2)
// `contrast`
// Analyze the 2 colors and returns the color contrast defined by (WCAG Version 2)
tinycolor.readability = function(color1, color2) {
var c1 = tinycolor(color1);
var c2 = tinycolor(color2);
return (Math.max(c1.getLuminance(),c2.getLuminance())+0.05) / (Math.min(c1.getLuminance(),c2.getLuminance())+0.05);
};
// `isReadable`
// Ensure that foreground and background color combinations meet WCAG2 guidelines.
// The third argument is an optional Object.
// the 'level' property states 'AA' or 'AAA' - if missing or invalid, it defaults to 'AA';
// the 'size' property states 'large' or 'small' - if missing or invalid, it defaults to 'small'.
// If the entire object is absent, isReadable defaults to {level:"AA",size:"small"}.
// *Example*
// tinycolor.isReadable("#000", "#111") => false
// tinycolor.isReadable("#000", "#111",{level:"AA",size:"large"}) => false
tinycolor.isReadable = function(color1, color2, wcag2) {
var readability = tinycolor.readability(color1, color2);
var wcag2Parms, out;
out = false;
wcag2Parms = validateWCAG2Parms(wcag2);
switch (wcag2Parms.level + wcag2Parms.size) {
case "AAsmall":
case "AAAlarge":
out = readability >= 4.5;
break;
case "AAlarge":
out = readability >= 3;
break;
case "AAAsmall":
out = readability >= 7;
break;
}
return out;
};
// `mostReadable`
// Given a base color and a list of possible foreground or background
// colors for that base, returns the most readable color.
// Optionally returns Black or White if the most readable color is unreadable.
// *Example*
// tinycolor.mostReadable(tinycolor.mostReadable("#123", ["#124", "#125"],{includeFallbackColors:false}).toHexString(); // "#112255"
// tinycolor.mostReadable(tinycolor.mostReadable("#123", ["#124", "#125"],{includeFallbackColors:true}).toHexString(); // "#ffffff"
// tinycolor.mostReadable("#a8015a", ["#faf3f3"],{includeFallbackColors:true,level:"AAA",size:"large"}).toHexString(); // "#faf3f3"
// tinycolor.mostReadable("#a8015a", ["#faf3f3"],{includeFallbackColors:true,level:"AAA",size:"small"}).toHexString(); // "#ffffff"
tinycolor.mostReadable = function(baseColor, colorList, args) {
var bestColor = null;
var bestScore = 0;
var readability;
var includeFallbackColors, level, size ;
args = args || {};
includeFallbackColors = args.includeFallbackColors ;
level = args.level;
size = args.size;
for (var i= 0; i < colorList.length ; i++) {
readability = tinycolor.readability(baseColor, colorList[i]);
if (readability > bestScore) {
bestScore = readability;
bestColor = tinycolor(colorList[i]);
}
}
if (tinycolor.isReadable(baseColor, bestColor, {"level":level,"size":size}) || !includeFallbackColors) {
return bestColor;
}
else {
args.includeFallbackColors=false;
return tinycolor.mostReadable(baseColor,["#fff", "#000"],args);
}
};
// Big List of Colors
// ------------------
// <http://www.w3.org/TR/css3-color/#svg-color>
var names = tinycolor.names = {
aliceblue: "f0f8ff",
antiquewhite: "faebd7",
aqua: "0ff",
aquamarine: "7fffd4",
azure: "f0ffff",
beige: "f5f5dc",
bisque: "ffe4c4",
black: "000",
blanchedalmond: "ffebcd",
blue: "00f",
blueviolet: "8a2be2",
brown: "a52a2a",
burlywood: "deb887",
burntsienna: "ea7e5d",
cadetblue: "5f9ea0",
chartreuse: "7fff00",
chocolate: "d2691e",
coral: "ff7f50",
cornflowerblue: "6495ed",
cornsilk: "fff8dc",
crimson: "dc143c",
cyan: "0ff",
darkblue: "00008b",
darkcyan: "008b8b",
darkgoldenrod: "b8860b",
darkgray: "a9a9a9",
darkgreen: "006400",
darkgrey: "a9a9a9",
darkkhaki: "bdb76b",
darkmagenta: "8b008b",
darkolivegreen: "556b2f",
darkorange: "ff8c00",
darkorchid: "9932cc",
darkred: "8b0000",
darksalmon: "e9967a",
darkseagreen: "8fbc8f",
darkslateblue: "483d8b",
darkslategray: "2f4f4f",
darkslategrey: "2f4f4f",
darkturquoise: "00ced1",
darkviolet: "9400d3",
deeppink: "ff1493",
deepskyblue: "00bfff",
dimgray: "696969",
dimgrey: "696969",
dodgerblue: "1e90ff",
firebrick: "b22222",
floralwhite: "fffaf0",
forestgreen: "228b22",
fuchsia: "f0f",
gainsboro: "dcdcdc",
ghostwhite: "f8f8ff",
gold: "ffd700",
goldenrod: "daa520",
gray: "808080",
green: "008000",
greenyellow: "adff2f",
grey: "808080",
honeydew: "f0fff0",
hotpink: "ff69b4",
indianred: "cd5c5c",
indigo: "4b0082",
ivory: "fffff0",
khaki: "f0e68c",
lavender: "e6e6fa",
lavenderblush: "fff0f5",
lawngreen: "7cfc00",
lemonchiffon: "fffacd",
lightblue: "add8e6",
lightcoral: "f08080",
lightcyan: "e0ffff",
lightgoldenrodyellow: "fafad2",
lightgray: "d3d3d3",
lightgreen: "90ee90",
lightgrey: "d3d3d3",
lightpink: "ffb6c1",
lightsalmon: "ffa07a",
lightseagreen: "20b2aa",
lightskyblue: "87cefa",
lightslategray: "789",
lightslategrey: "789",
lightsteelblue: "b0c4de",
lightyellow: "ffffe0",
lime: "0f0",
limegreen: "32cd32",
linen: "faf0e6",
magenta: "f0f",
maroon: "800000",
mediumaquamarine: "66cdaa",
mediumblue: "0000cd",
mediumorchid: "ba55d3",
mediumpurple: "9370db",
mediumseagreen: "3cb371",
mediumslateblue: "7b68ee",
mediumspringgreen: "00fa9a",
mediumturquoise: "48d1cc",
mediumvioletred: "c71585",
midnightblue: "191970",
mintcream: "f5fffa",
mistyrose: "ffe4e1",
moccasin: "ffe4b5",
navajowhite: "ffdead",
navy: "000080",
oldlace: "fdf5e6",
olive: "808000",
olivedrab: "6b8e23",
orange: "ffa500",
orangered: "ff4500",
orchid: "da70d6",
palegoldenrod: "eee8aa",
palegreen: "98fb98",
paleturquoise: "afeeee",
palevioletred: "db7093",
papayawhip: "ffefd5",
peachpuff: "ffdab9",
peru: "cd853f",
pink: "ffc0cb",
plum: "dda0dd",
powderblue: "b0e0e6",
purple: "800080",
rebeccapurple: "663399",
red: "f00",
rosybrown: "bc8f8f",
royalblue: "4169e1",
saddlebrown: "8b4513",
salmon: "fa8072",
sandybrown: "f4a460",
seagreen: "2e8b57",
seashell: "fff5ee",
sienna: "a0522d",
silver: "c0c0c0",
skyblue: "87ceeb",
slateblue: "6a5acd",
slategray: "708090",
slategrey: "708090",
snow: "fffafa",
springgreen: "00ff7f",
steelblue: "4682b4",
tan: "d2b48c",
teal: "008080",
thistle: "d8bfd8",
tomato: "ff6347",
turquoise: "40e0d0",
violet: "ee82ee",
wheat: "f5deb3",
white: "fff",
whitesmoke: "f5f5f5",
yellow: "ff0",
yellowgreen: "9acd32"
};
// Make it easy to access colors via `hexNames[hex]`
var hexNames = tinycolor.hexNames = flip(names);
// Utilities
// ---------
// `{ 'name1': 'val1' }` becomes `{ 'val1': 'name1' }`
function flip(o) {
var flipped = { };
for (var i in o) {
if (o.hasOwnProperty(i)) {
flipped[o[i]] = i;
}
}
return flipped;
}
// Return a valid alpha value [0,1] with all invalid values being set to 1
function boundAlpha(a) {
a = parseFloat(a);
if (isNaN(a) || a < 0 || a > 1) {
a = 1;
}
return a;
}
// Take input from [0, n] and return it as [0, 1]
function bound01(n, max) {
if (isOnePointZero(n)) { n = "100%"; }
var processPercent = isPercentage(n);
n = mathMin(max, mathMax(0, parseFloat(n)));
// Automatically convert percentage into number
if (processPercent) {
n = parseInt(n * max, 10) / 100;
}
// Handle floating point rounding errors
if ((Math.abs(n - max) < 0.000001)) {
return 1;
}
// Convert into [0, 1] range if it isn't already
return (n % max) / parseFloat(max);
}
// Force a number between 0 and 1
function clamp01(val) {
return mathMin(1, mathMax(0, val));
}
// Parse a base-16 hex value into a base-10 integer
function parseIntFromHex(val) {
return parseInt(val, 16);
}
// Need to handle 1.0 as 100%, since once it is a number, there is no difference between it and 1
// <http://stackoverflow.com/questions/7422072/javascript-how-to-detect-number-as-a-decimal-including-1-0>
function isOnePointZero(n) {
return typeof n == "string" && n.indexOf('.') != -1 && parseFloat(n) === 1;
}
// Check to see if string passed in is a percentage
function isPercentage(n) {
return typeof n === "string" && n.indexOf('%') != -1;
}
// Force a hex value to have 2 characters
function pad2(c) {
return c.length == 1 ? '0' + c : '' + c;
}
// Replace a decimal with it's percentage value
function convertToPercentage(n) {
if (n <= 1) {
n = (n * 100) + "%";
}
return n;
}
// Converts a decimal to a hex value
function convertDecimalToHex(d) {
return Math.round(parseFloat(d) * 255).toString(16);
}
// Converts a hex value to a decimal
function convertHexToDecimal(h) {
return (parseIntFromHex(h) / 255);
}
var matchers = (function() {
// <http://www.w3.org/TR/css3-values/#integers>
var CSS_INTEGER = "[-\\+]?\\d+%?";
// <http://www.w3.org/TR/css3-values/#number-value>
var CSS_NUMBER = "[-\\+]?\\d*\\.\\d+%?";
// Allow positive/negative integer/number. Don't capture the either/or, just the entire outcome.
var CSS_UNIT = "(?:" + CSS_NUMBER + ")|(?:" + CSS_INTEGER + ")";
// Actual matching.
// Parentheses and commas are optional, but not required.
// Whitespace can take the place of commas or opening paren
var PERMISSIVE_MATCH3 = "[\\s|\\(]+(" + CSS_UNIT + ")[,|\\s]+(" + CSS_UNIT + ")[,|\\s]+(" + CSS_UNIT + ")\\s*\\)?";
var PERMISSIVE_MATCH4 = "[\\s|\\(]+(" + CSS_UNIT + ")[,|\\s]+(" + CSS_UNIT + ")[,|\\s]+(" + CSS_UNIT + ")[,|\\s]+(" + CSS_UNIT + ")\\s*\\)?";
return {
CSS_UNIT: new RegExp(CSS_UNIT),
rgb: new RegExp("rgb" + PERMISSIVE_MATCH3),
rgba: new RegExp("rgba" + PERMISSIVE_MATCH4),
hsl: new RegExp("hsl" + PERMISSIVE_MATCH3),
hsla: new RegExp("hsla" + PERMISSIVE_MATCH4),
hsv: new RegExp("hsv" + PERMISSIVE_MATCH3),
hsva: new RegExp("hsva" + PERMISSIVE_MATCH4),
hex3: /^#?([0-9a-fA-F]{1})([0-9a-fA-F]{1})([0-9a-fA-F]{1})$/,
hex6: /^#?([0-9a-fA-F]{2})([0-9a-fA-F]{2})([0-9a-fA-F]{2})$/,
hex4: /^#?([0-9a-fA-F]{1})([0-9a-fA-F]{1})([0-9a-fA-F]{1})([0-9a-fA-F]{1})$/,
hex8: /^#?([0-9a-fA-F]{2})([0-9a-fA-F]{2})([0-9a-fA-F]{2})([0-9a-fA-F]{2})$/
};
})();
// `isValidCSSUnit`
// Take in a single string / number and check to see if it looks like a CSS unit
// (see `matchers` above for definition).
function isValidCSSUnit(color) {
return !!matchers.CSS_UNIT.exec(color);
}
// `stringInputToObject`
// Permissive string parsing. Take in a number of formats, and output an object
// based on detected format. Returns `{ r, g, b }` or `{ h, s, l }` or `{ h, s, v}`
function stringInputToObject(color) {
color = color.replace(trimLeft,'').replace(trimRight, '').toLowerCase();
var named = false;
if (names[color]) {
color = names[color];
named = true;
}
else if (color == 'transparent') {
return { r: 0, g: 0, b: 0, a: 0, format: "name" };
}
// Try to match string input using regular expressions.
// Keep most of the number bounding out of this function - don't worry about [0,1] or [0,100] or [0,360]
// Just return an object and let the conversion functions handle that.
// This way the result will be the same whether the tinycolor is initialized with string or object.
var match;
if ((match = matchers.rgb.exec(color))) {
return { r: match[1], g: match[2], b: match[3] };
}
if ((match = matchers.rgba.exec(color))) {
return { r: match[1], g: match[2], b: match[3], a: match[4] };
}
if ((match = matchers.hsl.exec(color))) {
return { h: match[1], s: match[2], l: match[3] };
}
if ((match = matchers.hsla.exec(color))) {
return { h: match[1], s: match[2], l: match[3], a: match[4] };
}
if ((match = matchers.hsv.exec(color))) {
return { h: match[1], s: match[2], v: match[3] };
}
if ((match = matchers.hsva.exec(color))) {
return { h: match[1], s: match[2], v: match[3], a: match[4] };
}
if ((match = matchers.hex8.exec(color))) {
return {
r: parseIntFromHex(match[1]),
g: parseIntFromHex(match[2]),
b: parseIntFromHex(match[3]),
a: convertHexToDecimal(match[4]),
format: named ? "name" : "hex8"
};
}
if ((match = matchers.hex6.exec(color))) {
return {
r: parseIntFromHex(match[1]),
g: parseIntFromHex(match[2]),
b: parseIntFromHex(match[3]),
format: named ? "name" : "hex"
};
}
if ((match = matchers.hex4.exec(color))) {
return {
r: parseIntFromHex(match[1] + '' + match[1]),
g: parseIntFromHex(match[2] + '' + match[2]),
b: parseIntFromHex(match[3] + '' + match[3]),
a: convertHexToDecimal(match[4] + '' + match[4]),
format: named ? "name" : "hex8"
};
}
if ((match = matchers.hex3.exec(color))) {
return {
r: parseIntFromHex(match[1] + '' + match[1]),
g: parseIntFromHex(match[2] + '' + match[2]),
b: parseIntFromHex(match[3] + '' + match[3]),
format: named ? "name" : "hex"
};
}
return false;
}
function validateWCAG2Parms(parms) {
// return valid WCAG2 parms for isReadable.
// If input parms are invalid, return {"level":"AA", "size":"small"}
var level, size;
parms = parms || {"level":"AA", "size":"small"};
level = (parms.level || "AA").toUpperCase();
size = (parms.size || "small").toLowerCase();
if (level !== "AA" && level !== "AAA") {
level = "AA";
}
if (size !== "small" && size !== "large") {
size = "small";
}
return {"level":level, "size":size};
}
// Node: Export function
if (typeof module !== "undefined" && module.exports) {
module.exports = tinycolor;
}
// AMD/requirejs: Define the module
else if (typeof define === 'function' && define.amd) {
define(function () {return tinycolor;});
}
// Browser: Expose to window
else {
window.tinycolor = tinycolor;
}
})(Math);
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