--- /dev/null
+/*!
+ * Color Picker 0.1.0 - Raphael plugin
+ *
+ * Copyright (c) 2010 Dmitry Baranovskiy (http://raphaeljs.com)
+ * Based on Color Wheel (http://jweir.github.com/colorwheel) by John Weir (http://famedriver.com)
+ * Licensed under the MIT (http://www.opensource.org/licenses/mit-license.php) license.
+ */
+(function (Raphael) {
+ Raphael.colorpicker = function (x, y, size, initcolor, element) {
+ return new ColorPicker(x, y, size, initcolor, element);
+ };
+ Raphael.fn.colorPickerIcon = function (x, y, r) {
+ var segments = pi * r * 2 / Math.min(r / 8, 4);
+ var a = pi / 2 - pi * 2 / segments * 1.5,
+ path = ["M", x, y - r, "A", r, r, 0, 0, 1, r * Math.cos(a) + x, y - r * Math.sin(a), "L", x, y, "z"].join();
+ for (var i = 0; i < segments; i++) {
+ this.path(path).attr({
+ stroke: "none",
+ fill: "hsb(" + (segments - i) * (255 / segments) / 255 + ", 1, 1)",
+ transform: "r" + [90 + (360 / segments) * i, x, y]
+ });
+ }
+ return this.circle(x, y, r).attr({
+ fill: "r#fff-#fff",
+ "fill-opacity": 0,
+ "stroke-width": Math.round(r * .03),
+ stroke: "#fff"
+ });
+ };
+ var pi = Math.PI;
+ function angle(x, y) {
+ return (x < 0) * 180 + Math.atan(-y / -x) * 180 / pi;
+ }
+ var doc = document, win = window,
+ ColorPicker = function (x, y, size, initcolor, element) {
+ size = size || 200;
+ var w3 = 3 * size / 200,
+ w1 = size / 200,
+ fi = 1.6180339887,
+ size20 = size / 20,
+ size2 = size / 2,
+ padding = 2 * size / 200,
+ height = size + size20 * 2 + padding * 3,
+ t = this,
+ H = 1, S = 1, B = 1, s = size - (size20 * 4),
+ r = element ? Raphael(element, size, height) : Raphael(x, y, size, height),
+ xy = s / 6 + size20 * 2 + padding,
+ wh = s * 2 / 3 - padding * 2;
+ w1 < 1 && (w1 = 1);
+ w3 < 1 && (w3 = 1);
+
+
+ r.colorPickerIcon(size2, size2, size2 - padding);
+
+ t.cursor = r.set();
+ t.cursor.push(r.circle(size2, size2, size20 / 2).attr({
+ stroke: "#000",
+ opacity: .5,
+ "stroke-width": w3
+ }));
+ t.cursor.push(t.cursor[0].clone().attr({
+ stroke: "#fff",
+ opacity: 1,
+ "stroke-width": w1
+ }));
+ t.disc = r.circle(size2, size2, size2 - padding).attr({
+ fill: "#000",
+ "fill-opacity": 0,
+ stroke: "none",
+ cursor: "crosshair"
+ });
+ var style = t.disc.node.style;
+ style.unselectable = "on";
+ style.MozUserSelect = "none";
+ style.WebkitUserSelect= "none";
+
+ // brightness drawing
+ var h = size20 * 2 + 2;
+ t.brect = r.rect(padding + h / fi / 2, size + padding * 2, size - padding * 2 - h / fi, h - padding * 2).attr({
+ stroke: "#fff",
+ fill: "180-#fff-#000"
+ });
+ t.cursorb = r.set();
+ t.cursorb.push(r.rect(size - padding - h / fi, size + padding, ~~(h / fi), h, w3).attr({
+ stroke: "#000",
+ opacity: .5,
+ "stroke-width": w3
+ }));
+ t.cursorb.push(t.cursorb[0].clone().attr({
+ stroke: "#fff",
+ opacity: 1,
+ "stroke-width": w1
+ }));
+ t.btop = t.brect.clone().attr({
+ stroke: "#000",
+ fill: "#000",
+ opacity: 0
+ });
+ style = t.btop.node.style;
+ style.unselectable = "on";
+ style.MozUserSelect = "none";
+ style.WebkitUserSelect= "none";
+
+ t.bwidth = ~~(h / fi) / 2;
+ t.minx = padding + t.bwidth;
+ t.maxx = size - h / fi - padding + t.bwidth;
+
+ t.H = t.S = t.B = 1;
+ t.padding = padding;
+ t.raphael = r;
+ t.size2 = size2;
+ t.size20 = size20;
+ t.x = x;
+ t.y = y;
+
+ // events
+ t.disc.drag(function (dx, dy, x, y) {
+ t.docOnMove(dx, dy, x, y);
+ }, function (x, y) {
+ t.hsOnTheMove = true;
+ t.setHS(x - t.x, y - t.y);
+ }, function () {
+ t.hsOnTheMove = false;
+ });
+ t.btop.drag(function (dx, dy, x, y) {
+ t.docOnMove(dx, dy, x, y);
+ }, function (x, y) {
+ t.bOnTheMove = true;
+ t.setB(x - t.x);
+ }, function () {
+ t.bOnTheMove = false;
+ });
+
+ t.color(initcolor || "#fff");
+ this.onchanged && this.onchanged(this.color());
+ };
+ ColorPicker.prototype.setB = function (x) {
+ x < this.minx && (x = this.minx);
+ x > this.maxx && (x = this.maxx);
+ this.cursorb.attr({x: x - this.bwidth});
+ this.B = (x - this.minx) / (this.maxx - this.minx);
+ this.onchange && this.onchange(this.color());
+ };
+ ColorPicker.prototype.setHS = function (x, y) {
+ var X = x - this.size2,
+ Y = y - this.size2,
+ R = this.size2 - this.size20 / 2 - this.padding,
+ d = angle(X, Y),
+ rd = d * pi / 180;
+ isNaN(d) && (d = 0);
+ if (X * X + Y * Y > R * R) {
+ x = R * Math.cos(rd) + this.size2;
+ y = R * Math.sin(rd) + this.size2;
+ }
+ this.cursor.attr({cx: x, cy: y});
+ this.H = (1 - d / 360) % 1;
+ this.S = Math.min((X * X + Y * Y) / R / R, 1);
+ this.brect.attr({fill: "180-hsb(" + [this.H, this.S] + ",1)-#000"});
+ this.onchange && this.onchange(this.color());
+ };
+ ColorPicker.prototype.docOnMove = function (dx, dy, x, y) {
+ if (this.hsOnTheMove) {
+ this.setHS(x - this.x, y - this.y);
+ }
+ if (this.bOnTheMove) {
+ this.setB(x - this.x);
+ }
+ };
+ ColorPicker.prototype.remove = function () {
+ this.raphael.remove();
+ this.color = function () {
+ return false;
+ };
+ };
+ ColorPicker.prototype.color = function (color) {
+ if (color) {
+ color = Raphael.getRGB(color);
+ var hex = color.hex;
+ color = Raphael.rgb2hsb(color.r, color.g, color.b);
+ d = color.h * 360;
+ this.H = color.h;
+ this.S = color.s;
+ this.B = color.b;
+
+ this.cursorb.attr({x: this.B * (this.maxx - this.minx) + this.minx - this.bwidth});
+ this.brect.attr({fill: "180-hsb(" + [this.H, this.S] + ",1)-#000"});
+
+ var d = (1 - this.H) * 360,
+ rd = d * pi / 180,
+ R = (this.size2 - this.size20 / 2 - this.padding) * this.S,
+ x = Math.cos(rd) * R + this.size2,
+ y = Math.sin(rd) * R + this.size2;
+ this.cursor.attr({cx: x, cy: y});
+ return this;
+ } else {
+ return Raphael.hsb2rgb(this.H, this.S, this.B).hex;
+ }
+ };
+})(window.Raphael);
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