+++ /dev/null
-/**
- * Farbtastic Color Picker 1.2
- * © 2008 Steven Wittens
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-//Adapted to uniform style with jQuery UI widgets and slightly change behavior
-//TODO:
-// - remove duplicated code by replacing it with jquery.colorUtils and modern jQuery
-// - uniform code style
-
-jQuery.fn.farbtastic = function (callback) {
- $.farbtastic(this, callback);
- return this;
-};
-
-jQuery.farbtastic = function (container, callback) {
- var container = $(container).get(0);
- return container.farbtastic || (container.farbtastic = new jQuery._farbtastic(container, callback));
-}
-
-jQuery._farbtastic = function (container, callback) {
- // Store farbtastic object
- var fb = this;
-
- // Insert markup
- $(container).html('<div class="farbtastic ui-widget-content"><div class="color"></div><div class="wheel"></div><div class="overlay"></div><div class="h-marker marker"></div><div class="sl-marker marker"></div></div>');
- $(container).addClass('ui-widget');
- var e = $('.farbtastic', container);
- fb.wheel = $('.wheel', container).get(0);
- // Dimensions
- fb.radius = 84;
- fb.square = 100;
- fb.width = 194;
-
- // Fix background PNGs in IE6
- if (navigator.appVersion.match(/MSIE [0-6]\./)) {
- $('*', e).each(function () {
- if (this.currentStyle.backgroundImage != 'none') {
- var image = this.currentStyle.backgroundImage;
- image = this.currentStyle.backgroundImage.slice(5, image.length - 2);
- $(this).css( {
- backgroundImage: 'none',
- filter: "progid:DXImageTransform.Microsoft.AlphaImageLoader(enabled=true, sizingMethod=crop, src='" + image + "')"
- } );
- }
- });
- }
-
- /**
- * Link to the given element(s) or callback.
- */
- fb.linkTo = function (callback) {
- // Unbind previous nodes
- if (typeof fb.callback == 'object') {
- $(fb.callback).unbind('keyup', fb.updateValue);
- }
-
- // Reset color
- fb.color = null;
-
- // Bind callback or elements
- if (typeof callback == 'function') {
- fb.callback = callback;
- }
- else if (typeof callback == 'object' || typeof callback == 'string') {
- fb.callback = $(callback);
- fb.callback.bind('keyup', fb.updateValue);
- if (fb.callback.get(0).value) {
- fb.setColor(fb.callback.get(0).value);
- }
- }
- return this;
- }
- fb.updateValue = function (event) {
- if (this.value != fb.color) {
- fb.setColor(this.value);
- }
- }
-
- /**
- * Change color with HTML syntax #123456
- */
- fb.setColor = function (color) {
- var rgb = $.colorUtil.getRGB( color );
- if (fb.color != color && rgb) {
- rgb = rgb.slice( 0 ); //make a clone
- //TODO: rewrite code so that this is not needed
- rgb[0] /= 255;
- rgb[1] /= 255;
- rgb[2] /= 255;
- fb.color = color;
- fb.rgb = rgb;
- fb.hsl = fb.RGBToHSL(fb.rgb);
- fb.updateDisplay();
- }
- return this;
- }
-
- /**
- * Change color with HSL triplet [0..1, 0..1, 0..1]
- */
- fb.setHSL = function (hsl) {
- fb.hsl = hsl;
- fb.rgb = fb.HSLToRGB(hsl);
- fb.color = fb.pack(fb.rgb);
- fb.updateDisplay();
- return this;
- }
-
- /////////////////////////////////////////////////////
-
- /**
- * Retrieve the coordinates of the given event relative to the center
- * of the widget.
- */
- fb.widgetCoords = function (event) {
- var ref = $( fb.wheel ).offset();
- return {
- x: event.pageX - ref.left - fb.width / 2,
- y: event.pageY - ref.top - fb.width / 2
- };
- }
-
- /**
- * Mousedown handler
- */
- fb.mousedown = function (event) {
- // Capture mouse
- if (!document.dragging) {
- $(document).bind('mousemove', fb.mousemove).bind('mouseup', fb.mouseup);
- document.dragging = true;
- }
-
- // Check which area is being dragged
- var pos = fb.widgetCoords(event);
- fb.circleDrag = Math.max(Math.abs(pos.x), Math.abs(pos.y)) * 2 > fb.square;
-
- // Process
- fb.mousemove(event);
- return false;
- }
-
- /**
- * Mousemove handler
- */
- fb.mousemove = function (event) {
- // Get coordinates relative to color picker center
- var pos = fb.widgetCoords(event);
-
- // Set new HSL parameters
- if (fb.circleDrag) {
- var hue = Math.atan2(pos.x, -pos.y) / 6.28;
- if (hue < 0) hue += 1;
- fb.setHSL([hue, fb.hsl[1], fb.hsl[2]]);
- }
- else {
- var sat = Math.max(0, Math.min(1, -(pos.x / fb.square) + .5));
- var lum = Math.max(0, Math.min(1, -(pos.y / fb.square) + .5));
- fb.setHSL([fb.hsl[0], sat, lum]);
- }
- return false;
- }
-
- /**
- * Mouseup handler
- */
- fb.mouseup = function () {
- // Uncapture mouse
- $(document).unbind('mousemove', fb.mousemove);
- $(document).unbind('mouseup', fb.mouseup);
- document.dragging = false;
- }
-
- /**
- * Update the markers and styles
- */
- fb.updateDisplay = function () {
- // Markers
- var angle = fb.hsl[0] * 6.28;
- $('.h-marker', e).css({
- left: Math.round(Math.sin(angle) * fb.radius + fb.width / 2) + 'px',
- top: Math.round(-Math.cos(angle) * fb.radius + fb.width / 2) + 'px'
- });
-
- $('.sl-marker', e).css({
- left: Math.round(fb.square * (.5 - fb.hsl[1]) + fb.width / 2) + 'px',
- top: Math.round(fb.square * (.5 - fb.hsl[2]) + fb.width / 2) + 'px'
- });
-
- // Saturation/Luminance gradient
- $('.color', e).css('backgroundColor', fb.pack(fb.HSLToRGB([fb.hsl[0], 1, 0.5])));
-
- // Linked elements or callback
- if (typeof fb.callback == 'object') {
- // Set background/foreground color
- $(fb.callback).css({
- backgroundColor: fb.color,
- color: fb.hsl[2] > 0.5 ? '#000' : '#fff'
- });
-
- // Change linked value
- $(fb.callback).each(function() {
- if ( $( this ).val() != fb.color) {
- $( this ).val( fb.color ).change();
- }
- });
- }
- else if (typeof fb.callback == 'function') {
- fb.callback.call(fb, fb.color);
- }
- }
-
- /* Various color utility functions */
- fb.pack = function (rgb) {
- var r = Math.round(rgb[0] * 255);
- var g = Math.round(rgb[1] * 255);
- var b = Math.round(rgb[2] * 255);
- return '#' + (r < 16 ? '0' : '') + r.toString(16) +
- (g < 16 ? '0' : '') + g.toString(16) +
- (b < 16 ? '0' : '') + b.toString(16);
- }
-
- fb.HSLToRGB = function (hsl) {
- var m1, m2, r, g, b;
- var h = hsl[0], s = hsl[1], l = hsl[2];
- m2 = (l <= 0.5) ? l * (s + 1) : l + s - l*s;
- m1 = l * 2 - m2;
- return [this.hueToRGB(m1, m2, h+0.33333),
- this.hueToRGB(m1, m2, h),
- this.hueToRGB(m1, m2, h-0.33333)];
- }
-
- fb.hueToRGB = function (m1, m2, h) {
- h = (h < 0) ? h + 1 : ((h > 1) ? h - 1 : h);
- if (h * 6 < 1) return m1 + (m2 - m1) * h * 6;
- if (h * 2 < 1) return m2;
- if (h * 3 < 2) return m1 + (m2 - m1) * (0.66666 - h) * 6;
- return m1;
- }
-
- fb.RGBToHSL = function (rgb) {
- var min, max, delta, h, s, l;
- var r = rgb[0], g = rgb[1], b = rgb[2];
- min = Math.min(r, Math.min(g, b));
- max = Math.max(r, Math.max(g, b));
- delta = max - min;
- l = (min + max) / 2;
- s = 0;
- if (l > 0 && l < 1) {
- s = delta / (l < 0.5 ? (2 * l) : (2 - 2 * l));
- }
- h = 0;
- if (delta > 0) {
- if (max == r && max != g) h += (g - b) / delta;
- if (max == g && max != b) h += (2 + (b - r) / delta);
- if (max == b && max != r) h += (4 + (r - g) / delta);
- h /= 6;
- }
- return [h, s, l];
- }
-
- // Install mousedown handler (the others are set on the document on-demand)
- $('*', e).mousedown(fb.mousedown);
-
- // Init color
- fb.setColor('#000000');
-
- // Set linked elements/callback
- if (callback) {
- fb.linkTo(callback);
- }
-}
dépôts / lhc / web / wiklou.git / commitdiff
