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924
plugins/jquery-knob/excanvas.js
vendored
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924
plugins/jquery-knob/excanvas.js
vendored
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// Copyright 2006 Google Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// Known Issues:
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//
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// * Patterns are not implemented.
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// * Radial gradient are not implemented. The VML version of these look very
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// different from the canvas one.
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// * Clipping paths are not implemented.
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// * Coordsize. The width and height attribute have higher priority than the
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// width and height style values which isn't correct.
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// * Painting mode isn't implemented.
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// * Canvas width/height should is using content-box by default. IE in
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// Quirks mode will draw the canvas using border-box. Either change your
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// doctype to HTML5
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// (http://www.whatwg.org/specs/web-apps/current-work/#the-doctype)
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// or use Box Sizing Behavior from WebFX
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// (http://webfx.eae.net/dhtml/boxsizing/boxsizing.html)
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// * Non uniform scaling does not correctly scale strokes.
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// * Optimize. There is always room for speed improvements.
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// Only add this code if we do not already have a canvas implementation
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if (!document.createElement('canvas').getContext) {
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(function() {
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// alias some functions to make (compiled) code shorter
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var m = Math;
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var mr = m.round;
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var ms = m.sin;
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var mc = m.cos;
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var abs = m.abs;
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var sqrt = m.sqrt;
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// this is used for sub pixel precision
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var Z = 10;
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var Z2 = Z / 2;
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/**
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* This funtion is assigned to the <canvas> elements as element.getContext().
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* @this {HTMLElement}
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* @return {CanvasRenderingContext2D_}
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*/
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function getContext() {
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return this.context_ ||
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(this.context_ = new CanvasRenderingContext2D_(this));
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}
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var slice = Array.prototype.slice;
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/**
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* Binds a function to an object. The returned function will always use the
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* passed in {@code obj} as {@code this}.
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*
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* Example:
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*
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* g = bind(f, obj, a, b)
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* g(c, d) // will do f.call(obj, a, b, c, d)
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*
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* @param {Function} f The function to bind the object to
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* @param {Object} obj The object that should act as this when the function
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* is called
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* @param {*} var_args Rest arguments that will be used as the initial
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* arguments when the function is called
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* @return {Function} A new function that has bound this
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*/
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function bind(f, obj, var_args) {
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var a = slice.call(arguments, 2);
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return function() {
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return f.apply(obj, a.concat(slice.call(arguments)));
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};
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}
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var G_vmlCanvasManager_ = {
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init: function(opt_doc) {
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if (/MSIE/.test(navigator.userAgent) && !window.opera) {
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var doc = opt_doc || document;
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// Create a dummy element so that IE will allow canvas elements to be
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// recognized.
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doc.createElement('canvas');
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doc.attachEvent('onreadystatechange', bind(this.init_, this, doc));
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}
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},
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init_: function(doc) {
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// create xmlns
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if (!doc.namespaces['g_vml_']) {
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doc.namespaces.add('g_vml_', 'urn:schemas-microsoft-com:vml',
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'#default#VML');
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}
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if (!doc.namespaces['g_o_']) {
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doc.namespaces.add('g_o_', 'urn:schemas-microsoft-com:office:office',
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'#default#VML');
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}
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// Setup default CSS. Only add one style sheet per document
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if (!doc.styleSheets['ex_canvas_']) {
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var ss = doc.createStyleSheet();
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ss.owningElement.id = 'ex_canvas_';
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ss.cssText = 'canvas{display:inline-block;overflow:hidden;' +
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// default size is 300x150 in Gecko and Opera
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'text-align:left;width:300px;height:150px}' +
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'g_vml_\\:*{behavior:url(#default#VML)}' +
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'g_o_\\:*{behavior:url(#default#VML)}';
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}
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// find all canvas elements
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var els = doc.getElementsByTagName('canvas');
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for (var i = 0; i < els.length; i++) {
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this.initElement(els[i]);
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}
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},
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/**
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* Public initializes a canvas element so that it can be used as canvas
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* element from now on. This is called automatically before the page is
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* loaded but if you are creating elements using createElement you need to
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* make sure this is called on the element.
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* @param {HTMLElement} el The canvas element to initialize.
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* @return {HTMLElement} the element that was created.
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*/
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initElement: function(el) {
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if (!el.getContext) {
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el.getContext = getContext;
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// Remove fallback content. There is no way to hide text nodes so we
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// just remove all childNodes. We could hide all elements and remove
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// text nodes but who really cares about the fallback content.
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el.innerHTML = '';
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// do not use inline function because that will leak memory
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el.attachEvent('onpropertychange', onPropertyChange);
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el.attachEvent('onresize', onResize);
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var attrs = el.attributes;
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if (attrs.width && attrs.width.specified) {
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// TODO: use runtimeStyle and coordsize
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// el.getContext().setWidth_(attrs.width.nodeValue);
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el.style.width = attrs.width.nodeValue + 'px';
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} else {
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el.width = el.clientWidth;
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}
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if (attrs.height && attrs.height.specified) {
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// TODO: use runtimeStyle and coordsize
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// el.getContext().setHeight_(attrs.height.nodeValue);
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el.style.height = attrs.height.nodeValue + 'px';
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} else {
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el.height = el.clientHeight;
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}
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//el.getContext().setCoordsize_()
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}
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return el;
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}
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};
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function onPropertyChange(e) {
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var el = e.srcElement;
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switch (e.propertyName) {
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case 'width':
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el.style.width = el.attributes.width.nodeValue + 'px';
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el.getContext().clearRect();
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break;
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case 'height':
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el.style.height = el.attributes.height.nodeValue + 'px';
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el.getContext().clearRect();
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break;
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}
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}
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function onResize(e) {
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var el = e.srcElement;
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if (el.firstChild) {
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el.firstChild.style.width = el.clientWidth + 'px';
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el.firstChild.style.height = el.clientHeight + 'px';
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}
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}
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G_vmlCanvasManager_.init();
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// precompute "00" to "FF"
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var dec2hex = [];
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for (var i = 0; i < 16; i++) {
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for (var j = 0; j < 16; j++) {
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dec2hex[i * 16 + j] = i.toString(16) + j.toString(16);
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}
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}
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function createMatrixIdentity() {
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return [
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[1, 0, 0],
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[0, 1, 0],
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[0, 0, 1]
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];
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}
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function matrixMultiply(m1, m2) {
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var result = createMatrixIdentity();
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for (var x = 0; x < 3; x++) {
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for (var y = 0; y < 3; y++) {
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var sum = 0;
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for (var z = 0; z < 3; z++) {
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sum += m1[x][z] * m2[z][y];
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}
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result[x][y] = sum;
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}
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}
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return result;
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}
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function copyState(o1, o2) {
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o2.fillStyle = o1.fillStyle;
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o2.lineCap = o1.lineCap;
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o2.lineJoin = o1.lineJoin;
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o2.lineWidth = o1.lineWidth;
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o2.miterLimit = o1.miterLimit;
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o2.shadowBlur = o1.shadowBlur;
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o2.shadowColor = o1.shadowColor;
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o2.shadowOffsetX = o1.shadowOffsetX;
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o2.shadowOffsetY = o1.shadowOffsetY;
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o2.strokeStyle = o1.strokeStyle;
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o2.globalAlpha = o1.globalAlpha;
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o2.arcScaleX_ = o1.arcScaleX_;
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o2.arcScaleY_ = o1.arcScaleY_;
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o2.lineScale_ = o1.lineScale_;
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}
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function processStyle(styleString) {
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var str, alpha = 1;
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styleString = String(styleString);
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if (styleString.substring(0, 3) == 'rgb') {
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var start = styleString.indexOf('(', 3);
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var end = styleString.indexOf(')', start + 1);
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var guts = styleString.substring(start + 1, end).split(',');
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str = '#';
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for (var i = 0; i < 3; i++) {
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str += dec2hex[Number(guts[i])];
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}
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if (guts.length == 4 && styleString.substr(3, 1) == 'a') {
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alpha = guts[3];
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}
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} else {
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str = styleString;
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}
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return {color: str, alpha: alpha};
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}
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function processLineCap(lineCap) {
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switch (lineCap) {
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case 'butt':
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return 'flat';
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case 'round':
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return 'round';
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case 'square':
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default:
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return 'square';
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}
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}
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/**
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* This class implements CanvasRenderingContext2D interface as described by
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* the WHATWG.
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* @param {HTMLElement} surfaceElement The element that the 2D context should
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* be associated with
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*/
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function CanvasRenderingContext2D_(surfaceElement) {
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this.m_ = createMatrixIdentity();
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this.mStack_ = [];
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this.aStack_ = [];
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this.currentPath_ = [];
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// Canvas context properties
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this.strokeStyle = '#000';
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this.fillStyle = '#000';
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this.lineWidth = 1;
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this.lineJoin = 'miter';
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this.lineCap = 'butt';
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this.miterLimit = Z * 1;
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this.globalAlpha = 1;
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this.canvas = surfaceElement;
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var el = surfaceElement.ownerDocument.createElement('div');
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el.style.width = surfaceElement.clientWidth + 'px';
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el.style.height = surfaceElement.clientHeight + 'px';
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el.style.overflow = 'hidden';
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el.style.position = 'absolute';
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surfaceElement.appendChild(el);
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this.element_ = el;
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this.arcScaleX_ = 1;
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this.arcScaleY_ = 1;
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this.lineScale_ = 1;
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}
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var contextPrototype = CanvasRenderingContext2D_.prototype;
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contextPrototype.clearRect = function() {
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this.element_.innerHTML = '';
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};
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contextPrototype.beginPath = function() {
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// TODO: Branch current matrix so that save/restore has no effect
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// as per safari docs.
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this.currentPath_ = [];
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};
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contextPrototype.moveTo = function(aX, aY) {
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var p = this.getCoords_(aX, aY);
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this.currentPath_.push({type: 'moveTo', x: p.x, y: p.y});
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this.currentX_ = p.x;
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this.currentY_ = p.y;
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};
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contextPrototype.lineTo = function(aX, aY) {
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var p = this.getCoords_(aX, aY);
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this.currentPath_.push({type: 'lineTo', x: p.x, y: p.y});
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this.currentX_ = p.x;
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this.currentY_ = p.y;
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};
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contextPrototype.bezierCurveTo = function(aCP1x, aCP1y,
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aCP2x, aCP2y,
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aX, aY) {
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var p = this.getCoords_(aX, aY);
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var cp1 = this.getCoords_(aCP1x, aCP1y);
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var cp2 = this.getCoords_(aCP2x, aCP2y);
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bezierCurveTo(this, cp1, cp2, p);
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};
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// Helper function that takes the already fixed cordinates.
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function bezierCurveTo(self, cp1, cp2, p) {
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self.currentPath_.push({
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type: 'bezierCurveTo',
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cp1x: cp1.x,
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cp1y: cp1.y,
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cp2x: cp2.x,
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cp2y: cp2.y,
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x: p.x,
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y: p.y
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});
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self.currentX_ = p.x;
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self.currentY_ = p.y;
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}
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contextPrototype.quadraticCurveTo = function(aCPx, aCPy, aX, aY) {
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// the following is lifted almost directly from
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// http://developer.mozilla.org/en/docs/Canvas_tutorial:Drawing_shapes
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var cp = this.getCoords_(aCPx, aCPy);
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var p = this.getCoords_(aX, aY);
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var cp1 = {
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x: this.currentX_ + 2.0 / 3.0 * (cp.x - this.currentX_),
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y: this.currentY_ + 2.0 / 3.0 * (cp.y - this.currentY_)
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};
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var cp2 = {
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x: cp1.x + (p.x - this.currentX_) / 3.0,
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y: cp1.y + (p.y - this.currentY_) / 3.0
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};
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bezierCurveTo(this, cp1, cp2, p);
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};
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contextPrototype.arc = function(aX, aY, aRadius,
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aStartAngle, aEndAngle, aClockwise) {
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aRadius *= Z;
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var arcType = aClockwise ? 'at' : 'wa';
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var xStart = aX + mc(aStartAngle) * aRadius - Z2;
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var yStart = aY + ms(aStartAngle) * aRadius - Z2;
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var xEnd = aX + mc(aEndAngle) * aRadius - Z2;
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var yEnd = aY + ms(aEndAngle) * aRadius - Z2;
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// IE won't render arches drawn counter clockwise if xStart == xEnd.
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if (xStart == xEnd && !aClockwise) {
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xStart += 0.125; // Offset xStart by 1/80 of a pixel. Use something
|
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// that can be represented in binary
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}
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||||
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var p = this.getCoords_(aX, aY);
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var pStart = this.getCoords_(xStart, yStart);
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var pEnd = this.getCoords_(xEnd, yEnd);
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this.currentPath_.push({type: arcType,
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x: p.x,
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y: p.y,
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radius: aRadius,
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xStart: pStart.x,
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||||
yStart: pStart.y,
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xEnd: pEnd.x,
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yEnd: pEnd.y});
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||||
|
||||
};
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contextPrototype.rect = function(aX, aY, aWidth, aHeight) {
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this.moveTo(aX, aY);
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this.lineTo(aX + aWidth, aY);
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this.lineTo(aX + aWidth, aY + aHeight);
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||||
this.lineTo(aX, aY + aHeight);
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||||
this.closePath();
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||||
};
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||||
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||||
contextPrototype.strokeRect = function(aX, aY, aWidth, aHeight) {
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||||
var oldPath = this.currentPath_;
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this.beginPath();
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||||
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this.moveTo(aX, aY);
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this.lineTo(aX + aWidth, aY);
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||||
this.lineTo(aX + aWidth, aY + aHeight);
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||||
this.lineTo(aX, aY + aHeight);
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||||
this.closePath();
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||||
this.stroke();
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||||
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||||
this.currentPath_ = oldPath;
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||||
};
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||||
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||||
contextPrototype.fillRect = function(aX, aY, aWidth, aHeight) {
|
||||
var oldPath = this.currentPath_;
|
||||
this.beginPath();
|
||||
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||||
this.moveTo(aX, aY);
|
||||
this.lineTo(aX + aWidth, aY);
|
||||
this.lineTo(aX + aWidth, aY + aHeight);
|
||||
this.lineTo(aX, aY + aHeight);
|
||||
this.closePath();
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||||
this.fill();
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||||
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||||
this.currentPath_ = oldPath;
|
||||
};
|
||||
|
||||
contextPrototype.createLinearGradient = function(aX0, aY0, aX1, aY1) {
|
||||
var gradient = new CanvasGradient_('gradient');
|
||||
gradient.x0_ = aX0;
|
||||
gradient.y0_ = aY0;
|
||||
gradient.x1_ = aX1;
|
||||
gradient.y1_ = aY1;
|
||||
return gradient;
|
||||
};
|
||||
|
||||
contextPrototype.createRadialGradient = function(aX0, aY0, aR0,
|
||||
aX1, aY1, aR1) {
|
||||
var gradient = new CanvasGradient_('gradientradial');
|
||||
gradient.x0_ = aX0;
|
||||
gradient.y0_ = aY0;
|
||||
gradient.r0_ = aR0;
|
||||
gradient.x1_ = aX1;
|
||||
gradient.y1_ = aY1;
|
||||
gradient.r1_ = aR1;
|
||||
return gradient;
|
||||
};
|
||||
|
||||
contextPrototype.drawImage = function(image, var_args) {
|
||||
var dx, dy, dw, dh, sx, sy, sw, sh;
|
||||
|
||||
// to find the original width we overide the width and height
|
||||
var oldRuntimeWidth = image.runtimeStyle.width;
|
||||
var oldRuntimeHeight = image.runtimeStyle.height;
|
||||
image.runtimeStyle.width = 'auto';
|
||||
image.runtimeStyle.height = 'auto';
|
||||
|
||||
// get the original size
|
||||
var w = image.width;
|
||||
var h = image.height;
|
||||
|
||||
// and remove overides
|
||||
image.runtimeStyle.width = oldRuntimeWidth;
|
||||
image.runtimeStyle.height = oldRuntimeHeight;
|
||||
|
||||
if (arguments.length == 3) {
|
||||
dx = arguments[1];
|
||||
dy = arguments[2];
|
||||
sx = sy = 0;
|
||||
sw = dw = w;
|
||||
sh = dh = h;
|
||||
} else if (arguments.length == 5) {
|
||||
dx = arguments[1];
|
||||
dy = arguments[2];
|
||||
dw = arguments[3];
|
||||
dh = arguments[4];
|
||||
sx = sy = 0;
|
||||
sw = w;
|
||||
sh = h;
|
||||
} else if (arguments.length == 9) {
|
||||
sx = arguments[1];
|
||||
sy = arguments[2];
|
||||
sw = arguments[3];
|
||||
sh = arguments[4];
|
||||
dx = arguments[5];
|
||||
dy = arguments[6];
|
||||
dw = arguments[7];
|
||||
dh = arguments[8];
|
||||
} else {
|
||||
throw Error('Invalid number of arguments');
|
||||
}
|
||||
|
||||
var d = this.getCoords_(dx, dy);
|
||||
|
||||
var w2 = sw / 2;
|
||||
var h2 = sh / 2;
|
||||
|
||||
var vmlStr = [];
|
||||
|
||||
var W = 10;
|
||||
var H = 10;
|
||||
|
||||
// For some reason that I've now forgotten, using divs didn't work
|
||||
vmlStr.push(' <g_vml_:group',
|
||||
' coordsize="', Z * W, ',', Z * H, '"',
|
||||
' coordorigin="0,0"' ,
|
||||
' style="width:', W, 'px;height:', H, 'px;position:absolute;');
|
||||
|
||||
// If filters are necessary (rotation exists), create them
|
||||
// filters are bog-slow, so only create them if abbsolutely necessary
|
||||
// The following check doesn't account for skews (which don't exist
|
||||
// in the canvas spec (yet) anyway.
|
||||
|
||||
if (this.m_[0][0] != 1 || this.m_[0][1]) {
|
||||
var filter = [];
|
||||
|
||||
// Note the 12/21 reversal
|
||||
filter.push('M11=', this.m_[0][0], ',',
|
||||
'M12=', this.m_[1][0], ',',
|
||||
'M21=', this.m_[0][1], ',',
|
||||
'M22=', this.m_[1][1], ',',
|
||||
'Dx=', mr(d.x / Z), ',',
|
||||
'Dy=', mr(d.y / Z), '');
|
||||
|
||||
// Bounding box calculation (need to minimize displayed area so that
|
||||
// filters don't waste time on unused pixels.
|
||||
var max = d;
|
||||
var c2 = this.getCoords_(dx + dw, dy);
|
||||
var c3 = this.getCoords_(dx, dy + dh);
|
||||
var c4 = this.getCoords_(dx + dw, dy + dh);
|
||||
|
||||
max.x = m.max(max.x, c2.x, c3.x, c4.x);
|
||||
max.y = m.max(max.y, c2.y, c3.y, c4.y);
|
||||
|
||||
vmlStr.push('padding:0 ', mr(max.x / Z), 'px ', mr(max.y / Z),
|
||||
'px 0;filter:progid:DXImageTransform.Microsoft.Matrix(',
|
||||
filter.join(''), ", sizingmethod='clip');")
|
||||
} else {
|
||||
vmlStr.push('top:', mr(d.y / Z), 'px;left:', mr(d.x / Z), 'px;');
|
||||
}
|
||||
|
||||
vmlStr.push(' ">' ,
|
||||
'<g_vml_:image src="', image.src, '"',
|
||||
' style="width:', Z * dw, 'px;',
|
||||
' height:', Z * dh, 'px;"',
|
||||
' cropleft="', sx / w, '"',
|
||||
' croptop="', sy / h, '"',
|
||||
' cropright="', (w - sx - sw) / w, '"',
|
||||
' cropbottom="', (h - sy - sh) / h, '"',
|
||||
' />',
|
||||
'</g_vml_:group>');
|
||||
|
||||
this.element_.insertAdjacentHTML('BeforeEnd',
|
||||
vmlStr.join(''));
|
||||
};
|
||||
|
||||
contextPrototype.stroke = function(aFill) {
|
||||
var lineStr = [];
|
||||
var lineOpen = false;
|
||||
var a = processStyle(aFill ? this.fillStyle : this.strokeStyle);
|
||||
var color = a.color;
|
||||
var opacity = a.alpha * this.globalAlpha;
|
||||
|
||||
var W = 10;
|
||||
var H = 10;
|
||||
|
||||
lineStr.push('<g_vml_:shape',
|
||||
' filled="', !!aFill, '"',
|
||||
' style="position:absolute;width:', W, 'px;height:', H, 'px;"',
|
||||
' coordorigin="0 0" coordsize="', Z * W, ' ', Z * H, '"',
|
||||
' stroked="', !aFill, '"',
|
||||
' path="');
|
||||
|
||||
var newSeq = false;
|
||||
var min = {x: null, y: null};
|
||||
var max = {x: null, y: null};
|
||||
|
||||
for (var i = 0; i < this.currentPath_.length; i++) {
|
||||
var p = this.currentPath_[i];
|
||||
var c;
|
||||
|
||||
switch (p.type) {
|
||||
case 'moveTo':
|
||||
c = p;
|
||||
lineStr.push(' m ', mr(p.x), ',', mr(p.y));
|
||||
break;
|
||||
case 'lineTo':
|
||||
lineStr.push(' l ', mr(p.x), ',', mr(p.y));
|
||||
break;
|
||||
case 'close':
|
||||
lineStr.push(' x ');
|
||||
p = null;
|
||||
break;
|
||||
case 'bezierCurveTo':
|
||||
lineStr.push(' c ',
|
||||
mr(p.cp1x), ',', mr(p.cp1y), ',',
|
||||
mr(p.cp2x), ',', mr(p.cp2y), ',',
|
||||
mr(p.x), ',', mr(p.y));
|
||||
break;
|
||||
case 'at':
|
||||
case 'wa':
|
||||
lineStr.push(' ', p.type, ' ',
|
||||
mr(p.x - this.arcScaleX_ * p.radius), ',',
|
||||
mr(p.y - this.arcScaleY_ * p.radius), ' ',
|
||||
mr(p.x + this.arcScaleX_ * p.radius), ',',
|
||||
mr(p.y + this.arcScaleY_ * p.radius), ' ',
|
||||
mr(p.xStart), ',', mr(p.yStart), ' ',
|
||||
mr(p.xEnd), ',', mr(p.yEnd));
|
||||
break;
|
||||
}
|
||||
|
||||
|
||||
// TODO: Following is broken for curves due to
|
||||
// move to proper paths.
|
||||
|
||||
// Figure out dimensions so we can do gradient fills
|
||||
// properly
|
||||
if (p) {
|
||||
if (min.x == null || p.x < min.x) {
|
||||
min.x = p.x;
|
||||
}
|
||||
if (max.x == null || p.x > max.x) {
|
||||
max.x = p.x;
|
||||
}
|
||||
if (min.y == null || p.y < min.y) {
|
||||
min.y = p.y;
|
||||
}
|
||||
if (max.y == null || p.y > max.y) {
|
||||
max.y = p.y;
|
||||
}
|
||||
}
|
||||
}
|
||||
lineStr.push(' ">');
|
||||
|
||||
if (!aFill) {
|
||||
var lineWidth = this.lineScale_ * this.lineWidth;
|
||||
|
||||
// VML cannot correctly render a line if the width is less than 1px.
|
||||
// In that case, we dilute the color to make the line look thinner.
|
||||
if (lineWidth < 1) {
|
||||
opacity *= lineWidth;
|
||||
}
|
||||
|
||||
lineStr.push(
|
||||
'<g_vml_:stroke',
|
||||
' opacity="', opacity, '"',
|
||||
' joinstyle="', this.lineJoin, '"',
|
||||
' miterlimit="', this.miterLimit, '"',
|
||||
' endcap="', processLineCap(this.lineCap), '"',
|
||||
' weight="', lineWidth, 'px"',
|
||||
' color="', color, '" />'
|
||||
);
|
||||
} else if (typeof this.fillStyle == 'object') {
|
||||
var fillStyle = this.fillStyle;
|
||||
var angle = 0;
|
||||
var focus = {x: 0, y: 0};
|
||||
|
||||
// additional offset
|
||||
var shift = 0;
|
||||
// scale factor for offset
|
||||
var expansion = 1;
|
||||
|
||||
if (fillStyle.type_ == 'gradient') {
|
||||
var x0 = fillStyle.x0_ / this.arcScaleX_;
|
||||
var y0 = fillStyle.y0_ / this.arcScaleY_;
|
||||
var x1 = fillStyle.x1_ / this.arcScaleX_;
|
||||
var y1 = fillStyle.y1_ / this.arcScaleY_;
|
||||
var p0 = this.getCoords_(x0, y0);
|
||||
var p1 = this.getCoords_(x1, y1);
|
||||
var dx = p1.x - p0.x;
|
||||
var dy = p1.y - p0.y;
|
||||
angle = Math.atan2(dx, dy) * 180 / Math.PI;
|
||||
|
||||
// The angle should be a non-negative number.
|
||||
if (angle < 0) {
|
||||
angle += 360;
|
||||
}
|
||||
|
||||
// Very small angles produce an unexpected result because they are
|
||||
// converted to a scientific notation string.
|
||||
if (angle < 1e-6) {
|
||||
angle = 0;
|
||||
}
|
||||
} else {
|
||||
var p0 = this.getCoords_(fillStyle.x0_, fillStyle.y0_);
|
||||
var width = max.x - min.x;
|
||||
var height = max.y - min.y;
|
||||
focus = {
|
||||
x: (p0.x - min.x) / width,
|
||||
y: (p0.y - min.y) / height
|
||||
};
|
||||
|
||||
width /= this.arcScaleX_ * Z;
|
||||
height /= this.arcScaleY_ * Z;
|
||||
var dimension = m.max(width, height);
|
||||
shift = 2 * fillStyle.r0_ / dimension;
|
||||
expansion = 2 * fillStyle.r1_ / dimension - shift;
|
||||
}
|
||||
|
||||
// We need to sort the color stops in ascending order by offset,
|
||||
// otherwise IE won't interpret it correctly.
|
||||
var stops = fillStyle.colors_;
|
||||
stops.sort(function(cs1, cs2) {
|
||||
return cs1.offset - cs2.offset;
|
||||
});
|
||||
|
||||
var length = stops.length;
|
||||
var color1 = stops[0].color;
|
||||
var color2 = stops[length - 1].color;
|
||||
var opacity1 = stops[0].alpha * this.globalAlpha;
|
||||
var opacity2 = stops[length - 1].alpha * this.globalAlpha;
|
||||
|
||||
var colors = [];
|
||||
for (var i = 0; i < length; i++) {
|
||||
var stop = stops[i];
|
||||
colors.push(stop.offset * expansion + shift + ' ' + stop.color);
|
||||
}
|
||||
|
||||
// When colors attribute is used, the meanings of opacity and o:opacity2
|
||||
// are reversed.
|
||||
lineStr.push('<g_vml_:fill type="', fillStyle.type_, '"',
|
||||
' method="none" focus="100%"',
|
||||
' color="', color1, '"',
|
||||
' color2="', color2, '"',
|
||||
' colors="', colors.join(','), '"',
|
||||
' opacity="', opacity2, '"',
|
||||
' g_o_:opacity2="', opacity1, '"',
|
||||
' angle="', angle, '"',
|
||||
' focusposition="', focus.x, ',', focus.y, '" />');
|
||||
} else {
|
||||
lineStr.push('<g_vml_:fill color="', color, '" opacity="', opacity,
|
||||
'" />');
|
||||
}
|
||||
|
||||
lineStr.push('</g_vml_:shape>');
|
||||
|
||||
this.element_.insertAdjacentHTML('beforeEnd', lineStr.join(''));
|
||||
};
|
||||
|
||||
contextPrototype.fill = function() {
|
||||
this.stroke(true);
|
||||
}
|
||||
|
||||
contextPrototype.closePath = function() {
|
||||
this.currentPath_.push({type: 'close'});
|
||||
};
|
||||
|
||||
/**
|
||||
* @private
|
||||
*/
|
||||
contextPrototype.getCoords_ = function(aX, aY) {
|
||||
var m = this.m_;
|
||||
return {
|
||||
x: Z * (aX * m[0][0] + aY * m[1][0] + m[2][0]) - Z2,
|
||||
y: Z * (aX * m[0][1] + aY * m[1][1] + m[2][1]) - Z2
|
||||
}
|
||||
};
|
||||
|
||||
contextPrototype.save = function() {
|
||||
var o = {};
|
||||
copyState(this, o);
|
||||
this.aStack_.push(o);
|
||||
this.mStack_.push(this.m_);
|
||||
this.m_ = matrixMultiply(createMatrixIdentity(), this.m_);
|
||||
};
|
||||
|
||||
contextPrototype.restore = function() {
|
||||
copyState(this.aStack_.pop(), this);
|
||||
this.m_ = this.mStack_.pop();
|
||||
};
|
||||
|
||||
function matrixIsFinite(m) {
|
||||
for (var j = 0; j < 3; j++) {
|
||||
for (var k = 0; k < 2; k++) {
|
||||
if (!isFinite(m[j][k]) || isNaN(m[j][k])) {
|
||||
return false;
|
||||
}
|
||||
}
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
function setM(ctx, m, updateLineScale) {
|
||||
if (!matrixIsFinite(m)) {
|
||||
return;
|
||||
}
|
||||
ctx.m_ = m;
|
||||
|
||||
if (updateLineScale) {
|
||||
// Get the line scale.
|
||||
// Determinant of this.m_ means how much the area is enlarged by the
|
||||
// transformation. So its square root can be used as a scale factor
|
||||
// for width.
|
||||
var det = m[0][0] * m[1][1] - m[0][1] * m[1][0];
|
||||
ctx.lineScale_ = sqrt(abs(det));
|
||||
}
|
||||
}
|
||||
|
||||
contextPrototype.translate = function(aX, aY) {
|
||||
var m1 = [
|
||||
[1, 0, 0],
|
||||
[0, 1, 0],
|
||||
[aX, aY, 1]
|
||||
];
|
||||
|
||||
setM(this, matrixMultiply(m1, this.m_), false);
|
||||
};
|
||||
|
||||
contextPrototype.rotate = function(aRot) {
|
||||
var c = mc(aRot);
|
||||
var s = ms(aRot);
|
||||
|
||||
var m1 = [
|
||||
[c, s, 0],
|
||||
[-s, c, 0],
|
||||
[0, 0, 1]
|
||||
];
|
||||
|
||||
setM(this, matrixMultiply(m1, this.m_), false);
|
||||
};
|
||||
|
||||
contextPrototype.scale = function(aX, aY) {
|
||||
this.arcScaleX_ *= aX;
|
||||
this.arcScaleY_ *= aY;
|
||||
var m1 = [
|
||||
[aX, 0, 0],
|
||||
[0, aY, 0],
|
||||
[0, 0, 1]
|
||||
];
|
||||
|
||||
setM(this, matrixMultiply(m1, this.m_), true);
|
||||
};
|
||||
|
||||
contextPrototype.transform = function(m11, m12, m21, m22, dx, dy) {
|
||||
var m1 = [
|
||||
[m11, m12, 0],
|
||||
[m21, m22, 0],
|
||||
[dx, dy, 1]
|
||||
];
|
||||
|
||||
setM(this, matrixMultiply(m1, this.m_), true);
|
||||
};
|
||||
|
||||
contextPrototype.setTransform = function(m11, m12, m21, m22, dx, dy) {
|
||||
var m = [
|
||||
[m11, m12, 0],
|
||||
[m21, m22, 0],
|
||||
[dx, dy, 1]
|
||||
];
|
||||
|
||||
setM(this, m, true);
|
||||
};
|
||||
|
||||
/******** STUBS ********/
|
||||
contextPrototype.clip = function() {
|
||||
// TODO: Implement
|
||||
};
|
||||
|
||||
contextPrototype.arcTo = function() {
|
||||
// TODO: Implement
|
||||
};
|
||||
|
||||
contextPrototype.createPattern = function() {
|
||||
return new CanvasPattern_;
|
||||
};
|
||||
|
||||
// Gradient / Pattern Stubs
|
||||
function CanvasGradient_(aType) {
|
||||
this.type_ = aType;
|
||||
this.x0_ = 0;
|
||||
this.y0_ = 0;
|
||||
this.r0_ = 0;
|
||||
this.x1_ = 0;
|
||||
this.y1_ = 0;
|
||||
this.r1_ = 0;
|
||||
this.colors_ = [];
|
||||
}
|
||||
|
||||
CanvasGradient_.prototype.addColorStop = function(aOffset, aColor) {
|
||||
aColor = processStyle(aColor);
|
||||
this.colors_.push({offset: aOffset,
|
||||
color: aColor.color,
|
||||
alpha: aColor.alpha});
|
||||
};
|
||||
|
||||
function CanvasPattern_() {}
|
||||
|
||||
// set up externs
|
||||
G_vmlCanvasManager = G_vmlCanvasManager_;
|
||||
CanvasRenderingContext2D = CanvasRenderingContext2D_;
|
||||
CanvasGradient = CanvasGradient_;
|
||||
CanvasPattern = CanvasPattern_;
|
||||
|
||||
})();
|
||||
|
||||
} // if
|
||||
805
plugins/jquery-knob/jquery.knob.js
Normal file
805
plugins/jquery-knob/jquery.knob.js
Normal file
@@ -0,0 +1,805 @@
|
||||
/*!jQuery Knob*/
|
||||
/**
|
||||
* Downward compatible, touchable dial
|
||||
*
|
||||
* Version: 1.2.11
|
||||
* Requires: jQuery v1.7+
|
||||
*
|
||||
* Copyright (c) 2012 Anthony Terrien
|
||||
* Under MIT License (http://www.opensource.org/licenses/mit-license.php)
|
||||
*
|
||||
* Thanks to vor, eskimoblood, spiffistan, FabrizioC
|
||||
*/
|
||||
(function (factory) {
|
||||
if (typeof exports === 'object') {
|
||||
// CommonJS
|
||||
module.exports = factory(require('jquery'));
|
||||
} else if (typeof define === 'function' && define.amd) {
|
||||
// AMD. Register as an anonymous module.
|
||||
define(['jquery'], factory);
|
||||
} else {
|
||||
// Browser globals
|
||||
factory(jQuery);
|
||||
}
|
||||
}(function ($) {
|
||||
|
||||
/**
|
||||
* Kontrol library
|
||||
*/
|
||||
"use strict";
|
||||
|
||||
/**
|
||||
* Definition of globals and core
|
||||
*/
|
||||
var k = {}, // kontrol
|
||||
max = Math.max,
|
||||
min = Math.min;
|
||||
|
||||
k.c = {};
|
||||
k.c.d = $(document);
|
||||
k.c.t = function (e) {
|
||||
return e.originalEvent.touches.length - 1;
|
||||
};
|
||||
|
||||
/**
|
||||
* Kontrol Object
|
||||
*
|
||||
* Definition of an abstract UI control
|
||||
*
|
||||
* Each concrete component must call this one.
|
||||
* <code>
|
||||
* k.o.call(this);
|
||||
* </code>
|
||||
*/
|
||||
k.o = function () {
|
||||
var s = this;
|
||||
|
||||
this.o = null; // array of options
|
||||
this.$ = null; // jQuery wrapped element
|
||||
this.i = null; // mixed HTMLInputElement or array of HTMLInputElement
|
||||
this.g = null; // deprecated 2D graphics context for 'pre-rendering'
|
||||
this.v = null; // value ; mixed array or integer
|
||||
this.cv = null; // change value ; not commited value
|
||||
this.x = 0; // canvas x position
|
||||
this.y = 0; // canvas y position
|
||||
this.w = 0; // canvas width
|
||||
this.h = 0; // canvas height
|
||||
this.$c = null; // jQuery canvas element
|
||||
this.c = null; // rendered canvas context
|
||||
this.t = 0; // touches index
|
||||
this.isInit = false;
|
||||
this.fgColor = null; // main color
|
||||
this.pColor = null; // previous color
|
||||
this.dH = null; // draw hook
|
||||
this.cH = null; // change hook
|
||||
this.eH = null; // cancel hook
|
||||
this.rH = null; // release hook
|
||||
this.scale = 1; // scale factor
|
||||
this.relative = false;
|
||||
this.relativeWidth = false;
|
||||
this.relativeHeight = false;
|
||||
this.$div = null; // component div
|
||||
|
||||
this.run = function () {
|
||||
var cf = function (e, conf) {
|
||||
var k;
|
||||
for (k in conf) {
|
||||
s.o[k] = conf[k];
|
||||
}
|
||||
s._carve().init();
|
||||
s._configure()
|
||||
._draw();
|
||||
};
|
||||
|
||||
if (this.$.data('kontroled')) return;
|
||||
this.$.data('kontroled', true);
|
||||
|
||||
this.extend();
|
||||
this.o = $.extend({
|
||||
// Config
|
||||
min: this.$.data('min') !== undefined ? this.$.data('min') : 0,
|
||||
max: this.$.data('max') !== undefined ? this.$.data('max') : 100,
|
||||
stopper: true,
|
||||
readOnly: this.$.data('readonly') || (this.$.attr('readonly') === 'readonly'),
|
||||
|
||||
// UI
|
||||
cursor: this.$.data('cursor') === true && 30
|
||||
|| this.$.data('cursor') || 0,
|
||||
thickness: this.$.data('thickness')
|
||||
&& Math.max(Math.min(this.$.data('thickness'), 1), 0.01)
|
||||
|| 0.35,
|
||||
lineCap: this.$.data('linecap') || 'butt',
|
||||
width: this.$.data('width') || 200,
|
||||
height: this.$.data('height') || 200,
|
||||
displayInput: this.$.data('displayinput') == null || this.$.data('displayinput'),
|
||||
displayPrevious: this.$.data('displayprevious'),
|
||||
fgColor: this.$.data('fgcolor') || '#87CEEB',
|
||||
inputColor: this.$.data('inputcolor'),
|
||||
font: this.$.data('font') || 'Arial',
|
||||
fontWeight: this.$.data('font-weight') || 'bold',
|
||||
inline: false,
|
||||
step: this.$.data('step') || 1,
|
||||
rotation: this.$.data('rotation'),
|
||||
|
||||
// Hooks
|
||||
draw: null, // function () {}
|
||||
change: null, // function (value) {}
|
||||
cancel: null, // function () {}
|
||||
release: null, // function (value) {}
|
||||
|
||||
// Output formatting, allows to add unit: %, ms ...
|
||||
format: function(v) {
|
||||
return v;
|
||||
},
|
||||
parse: function (v) {
|
||||
return parseFloat(v);
|
||||
}
|
||||
}, this.o
|
||||
);
|
||||
|
||||
// finalize options
|
||||
this.o.flip = this.o.rotation === 'anticlockwise' || this.o.rotation === 'acw';
|
||||
if (!this.o.inputColor) {
|
||||
this.o.inputColor = this.o.fgColor;
|
||||
}
|
||||
|
||||
// routing value
|
||||
if (this.$.is('fieldset')) {
|
||||
|
||||
// fieldset = array of integer
|
||||
this.v = {};
|
||||
this.i = this.$.find('input');
|
||||
this.i.each(function(k) {
|
||||
var $this = $(this);
|
||||
s.i[k] = $this;
|
||||
s.v[k] = s.o.parse($this.val());
|
||||
|
||||
$this.bind(
|
||||
'change blur',
|
||||
function () {
|
||||
var val = {};
|
||||
val[k] = $this.val();
|
||||
s.val(s._validate(val));
|
||||
}
|
||||
);
|
||||
});
|
||||
this.$.find('legend').remove();
|
||||
} else {
|
||||
|
||||
// input = integer
|
||||
this.i = this.$;
|
||||
this.v = this.o.parse(this.$.val());
|
||||
this.v === '' && (this.v = this.o.min);
|
||||
this.$.bind(
|
||||
'change blur',
|
||||
function () {
|
||||
s.val(s._validate(s.o.parse(s.$.val())));
|
||||
}
|
||||
);
|
||||
|
||||
}
|
||||
|
||||
!this.o.displayInput && this.$.hide();
|
||||
|
||||
// adds needed DOM elements (canvas, div)
|
||||
this.$c = $(document.createElement('canvas')).attr({
|
||||
width: this.o.width,
|
||||
height: this.o.height
|
||||
});
|
||||
|
||||
// wraps all elements in a div
|
||||
// add to DOM before Canvas init is triggered
|
||||
this.$div = $('<div style="'
|
||||
+ (this.o.inline ? 'display:inline;' : '')
|
||||
+ 'width:' + this.o.width + 'px;height:' + this.o.height + 'px;'
|
||||
+ '"></div>');
|
||||
|
||||
this.$.wrap(this.$div).before(this.$c);
|
||||
this.$div = this.$.parent();
|
||||
|
||||
if (typeof G_vmlCanvasManager !== 'undefined') {
|
||||
G_vmlCanvasManager.initElement(this.$c[0]);
|
||||
}
|
||||
|
||||
this.c = this.$c[0].getContext ? this.$c[0].getContext('2d') : null;
|
||||
|
||||
if (!this.c) {
|
||||
throw {
|
||||
name: "CanvasNotSupportedException",
|
||||
message: "Canvas not supported. Please use excanvas on IE8.0.",
|
||||
toString: function(){return this.name + ": " + this.message}
|
||||
}
|
||||
}
|
||||
|
||||
// hdpi support
|
||||
this.scale = (window.devicePixelRatio || 1) / (
|
||||
this.c.webkitBackingStorePixelRatio ||
|
||||
this.c.mozBackingStorePixelRatio ||
|
||||
this.c.msBackingStorePixelRatio ||
|
||||
this.c.oBackingStorePixelRatio ||
|
||||
this.c.backingStorePixelRatio || 1
|
||||
);
|
||||
|
||||
// detects relative width / height
|
||||
this.relativeWidth = this.o.width % 1 !== 0
|
||||
&& this.o.width.indexOf('%');
|
||||
this.relativeHeight = this.o.height % 1 !== 0
|
||||
&& this.o.height.indexOf('%');
|
||||
this.relative = this.relativeWidth || this.relativeHeight;
|
||||
|
||||
// computes size and carves the component
|
||||
this._carve();
|
||||
|
||||
// prepares props for transaction
|
||||
if (this.v instanceof Object) {
|
||||
this.cv = {};
|
||||
this.copy(this.v, this.cv);
|
||||
} else {
|
||||
this.cv = this.v;
|
||||
}
|
||||
|
||||
// binds configure event
|
||||
this.$
|
||||
.bind("configure", cf)
|
||||
.parent()
|
||||
.bind("configure", cf);
|
||||
|
||||
// finalize init
|
||||
this._listen()
|
||||
._configure()
|
||||
._xy()
|
||||
.init();
|
||||
|
||||
this.isInit = true;
|
||||
|
||||
this.$.val(this.o.format(this.v));
|
||||
this._draw();
|
||||
|
||||
return this;
|
||||
};
|
||||
|
||||
this._carve = function() {
|
||||
if (this.relative) {
|
||||
var w = this.relativeWidth ?
|
||||
this.$div.parent().width() *
|
||||
parseInt(this.o.width) / 100
|
||||
: this.$div.parent().width(),
|
||||
h = this.relativeHeight ?
|
||||
this.$div.parent().height() *
|
||||
parseInt(this.o.height) / 100
|
||||
: this.$div.parent().height();
|
||||
|
||||
// apply relative
|
||||
this.w = this.h = Math.min(w, h);
|
||||
} else {
|
||||
this.w = this.o.width;
|
||||
this.h = this.o.height;
|
||||
}
|
||||
|
||||
// finalize div
|
||||
this.$div.css({
|
||||
'width': this.w + 'px',
|
||||
'height': this.h + 'px'
|
||||
});
|
||||
|
||||
// finalize canvas with computed width
|
||||
this.$c.attr({
|
||||
width: this.w,
|
||||
height: this.h
|
||||
});
|
||||
|
||||
// scaling
|
||||
if (this.scale !== 1) {
|
||||
this.$c[0].width = this.$c[0].width * this.scale;
|
||||
this.$c[0].height = this.$c[0].height * this.scale;
|
||||
this.$c.width(this.w);
|
||||
this.$c.height(this.h);
|
||||
}
|
||||
|
||||
return this;
|
||||
};
|
||||
|
||||
this._draw = function () {
|
||||
|
||||
// canvas pre-rendering
|
||||
var d = true;
|
||||
|
||||
s.g = s.c;
|
||||
|
||||
s.clear();
|
||||
|
||||
s.dH && (d = s.dH());
|
||||
|
||||
d !== false && s.draw();
|
||||
};
|
||||
|
||||
this._touch = function (e) {
|
||||
var touchMove = function (e) {
|
||||
var v = s.xy2val(
|
||||
e.originalEvent.touches[s.t].pageX,
|
||||
e.originalEvent.touches[s.t].pageY
|
||||
);
|
||||
|
||||
if (v == s.cv) return;
|
||||
|
||||
if (s.cH && s.cH(v) === false) return;
|
||||
|
||||
s.change(s._validate(v));
|
||||
s._draw();
|
||||
};
|
||||
|
||||
// get touches index
|
||||
this.t = k.c.t(e);
|
||||
|
||||
// First touch
|
||||
touchMove(e);
|
||||
|
||||
// Touch events listeners
|
||||
k.c.d
|
||||
.bind("touchmove.k", touchMove)
|
||||
.bind(
|
||||
"touchend.k",
|
||||
function () {
|
||||
k.c.d.unbind('touchmove.k touchend.k');
|
||||
s.val(s.cv);
|
||||
}
|
||||
);
|
||||
|
||||
return this;
|
||||
};
|
||||
|
||||
this._mouse = function (e) {
|
||||
var mouseMove = function (e) {
|
||||
var v = s.xy2val(e.pageX, e.pageY);
|
||||
|
||||
if (v == s.cv) return;
|
||||
|
||||
if (s.cH && (s.cH(v) === false)) return;
|
||||
|
||||
s.change(s._validate(v));
|
||||
s._draw();
|
||||
};
|
||||
|
||||
// First click
|
||||
mouseMove(e);
|
||||
|
||||
// Mouse events listeners
|
||||
k.c.d
|
||||
.bind("mousemove.k", mouseMove)
|
||||
.bind(
|
||||
// Escape key cancel current change
|
||||
"keyup.k",
|
||||
function (e) {
|
||||
if (e.keyCode === 27) {
|
||||
k.c.d.unbind("mouseup.k mousemove.k keyup.k");
|
||||
|
||||
if (s.eH && s.eH() === false)
|
||||
return;
|
||||
|
||||
s.cancel();
|
||||
}
|
||||
}
|
||||
)
|
||||
.bind(
|
||||
"mouseup.k",
|
||||
function (e) {
|
||||
k.c.d.unbind('mousemove.k mouseup.k keyup.k');
|
||||
s.val(s.cv);
|
||||
}
|
||||
);
|
||||
|
||||
return this;
|
||||
};
|
||||
|
||||
this._xy = function () {
|
||||
var o = this.$c.offset();
|
||||
this.x = o.left;
|
||||
this.y = o.top;
|
||||
|
||||
return this;
|
||||
};
|
||||
|
||||
this._listen = function () {
|
||||
if (!this.o.readOnly) {
|
||||
this.$c
|
||||
.bind(
|
||||
"mousedown",
|
||||
function (e) {
|
||||
e.preventDefault();
|
||||
s._xy()._mouse(e);
|
||||
}
|
||||
)
|
||||
.bind(
|
||||
"touchstart",
|
||||
function (e) {
|
||||
e.preventDefault();
|
||||
s._xy()._touch(e);
|
||||
}
|
||||
);
|
||||
|
||||
this.listen();
|
||||
} else {
|
||||
this.$.attr('readonly', 'readonly');
|
||||
}
|
||||
|
||||
if (this.relative) {
|
||||
$(window).resize(function() {
|
||||
s._carve().init();
|
||||
s._draw();
|
||||
});
|
||||
}
|
||||
|
||||
return this;
|
||||
};
|
||||
|
||||
this._configure = function () {
|
||||
|
||||
// Hooks
|
||||
if (this.o.draw) this.dH = this.o.draw;
|
||||
if (this.o.change) this.cH = this.o.change;
|
||||
if (this.o.cancel) this.eH = this.o.cancel;
|
||||
if (this.o.release) this.rH = this.o.release;
|
||||
|
||||
if (this.o.displayPrevious) {
|
||||
this.pColor = this.h2rgba(this.o.fgColor, "0.4");
|
||||
this.fgColor = this.h2rgba(this.o.fgColor, "0.6");
|
||||
} else {
|
||||
this.fgColor = this.o.fgColor;
|
||||
}
|
||||
|
||||
return this;
|
||||
};
|
||||
|
||||
this._clear = function () {
|
||||
this.$c[0].width = this.$c[0].width;
|
||||
};
|
||||
|
||||
this._validate = function (v) {
|
||||
var val = (~~ (((v < 0) ? -0.5 : 0.5) + (v/this.o.step))) * this.o.step;
|
||||
return Math.round(val * 100) / 100;
|
||||
};
|
||||
|
||||
// Abstract methods
|
||||
this.listen = function () {}; // on start, one time
|
||||
this.extend = function () {}; // each time configure triggered
|
||||
this.init = function () {}; // each time configure triggered
|
||||
this.change = function (v) {}; // on change
|
||||
this.val = function (v) {}; // on release
|
||||
this.xy2val = function (x, y) {}; //
|
||||
this.draw = function () {}; // on change / on release
|
||||
this.clear = function () { this._clear(); };
|
||||
|
||||
// Utils
|
||||
this.h2rgba = function (h, a) {
|
||||
var rgb;
|
||||
h = h.substring(1,7);
|
||||
rgb = [
|
||||
parseInt(h.substring(0,2), 16),
|
||||
parseInt(h.substring(2,4), 16),
|
||||
parseInt(h.substring(4,6), 16)
|
||||
];
|
||||
|
||||
return "rgba(" + rgb[0] + "," + rgb[1] + "," + rgb[2] + "," + a + ")";
|
||||
};
|
||||
|
||||
this.copy = function (f, t) {
|
||||
for (var i in f) {
|
||||
t[i] = f[i];
|
||||
}
|
||||
};
|
||||
};
|
||||
|
||||
|
||||
/**
|
||||
* k.Dial
|
||||
*/
|
||||
k.Dial = function () {
|
||||
k.o.call(this);
|
||||
|
||||
this.startAngle = null;
|
||||
this.xy = null;
|
||||
this.radius = null;
|
||||
this.lineWidth = null;
|
||||
this.cursorExt = null;
|
||||
this.w2 = null;
|
||||
this.PI2 = 2*Math.PI;
|
||||
|
||||
this.extend = function () {
|
||||
this.o = $.extend({
|
||||
bgColor: this.$.data('bgcolor') || '#EEEEEE',
|
||||
angleOffset: this.$.data('angleoffset') || 0,
|
||||
angleArc: this.$.data('anglearc') || 360,
|
||||
inline: true
|
||||
}, this.o);
|
||||
};
|
||||
|
||||
this.val = function (v, triggerRelease) {
|
||||
if (null != v) {
|
||||
|
||||
// reverse format
|
||||
v = this.o.parse(v);
|
||||
|
||||
if (triggerRelease !== false
|
||||
&& v != this.v
|
||||
&& this.rH
|
||||
&& this.rH(v) === false) { return; }
|
||||
|
||||
this.cv = this.o.stopper ? max(min(v, this.o.max), this.o.min) : v;
|
||||
this.v = this.cv;
|
||||
this.$.val(this.o.format(this.v));
|
||||
this._draw();
|
||||
} else {
|
||||
return this.v;
|
||||
}
|
||||
};
|
||||
|
||||
this.xy2val = function (x, y) {
|
||||
var a, ret;
|
||||
|
||||
a = Math.atan2(
|
||||
x - (this.x + this.w2),
|
||||
- (y - this.y - this.w2)
|
||||
) - this.angleOffset;
|
||||
|
||||
if (this.o.flip) {
|
||||
a = this.angleArc - a - this.PI2;
|
||||
}
|
||||
|
||||
if (this.angleArc != this.PI2 && (a < 0) && (a > -0.5)) {
|
||||
|
||||
// if isset angleArc option, set to min if .5 under min
|
||||
a = 0;
|
||||
} else if (a < 0) {
|
||||
a += this.PI2;
|
||||
}
|
||||
|
||||
ret = (a * (this.o.max - this.o.min) / this.angleArc) + this.o.min;
|
||||
|
||||
this.o.stopper && (ret = max(min(ret, this.o.max), this.o.min));
|
||||
|
||||
return ret;
|
||||
};
|
||||
|
||||
this.listen = function () {
|
||||
|
||||
// bind MouseWheel
|
||||
var s = this, mwTimerStop,
|
||||
mwTimerRelease,
|
||||
mw = function (e) {
|
||||
e.preventDefault();
|
||||
|
||||
var ori = e.originalEvent,
|
||||
deltaX = ori.detail || ori.wheelDeltaX,
|
||||
deltaY = ori.detail || ori.wheelDeltaY,
|
||||
v = s._validate(s.o.parse(s.$.val()))
|
||||
+ (
|
||||
deltaX > 0 || deltaY > 0
|
||||
? s.o.step
|
||||
: deltaX < 0 || deltaY < 0 ? -s.o.step : 0
|
||||
);
|
||||
|
||||
v = max(min(v, s.o.max), s.o.min);
|
||||
|
||||
s.val(v, false);
|
||||
|
||||
if (s.rH) {
|
||||
// Handle mousewheel stop
|
||||
clearTimeout(mwTimerStop);
|
||||
mwTimerStop = setTimeout(function () {
|
||||
s.rH(v);
|
||||
mwTimerStop = null;
|
||||
}, 100);
|
||||
|
||||
// Handle mousewheel releases
|
||||
if (!mwTimerRelease) {
|
||||
mwTimerRelease = setTimeout(function () {
|
||||
if (mwTimerStop)
|
||||
s.rH(v);
|
||||
mwTimerRelease = null;
|
||||
}, 200);
|
||||
}
|
||||
}
|
||||
},
|
||||
kval,
|
||||
to,
|
||||
m = 1,
|
||||
kv = {
|
||||
37: -s.o.step,
|
||||
38: s.o.step,
|
||||
39: s.o.step,
|
||||
40: -s.o.step
|
||||
};
|
||||
|
||||
this.$
|
||||
.bind(
|
||||
"keydown",
|
||||
function (e) {
|
||||
var kc = e.keyCode;
|
||||
|
||||
// numpad support
|
||||
if (kc >= 96 && kc <= 105) {
|
||||
kc = e.keyCode = kc - 48;
|
||||
}
|
||||
|
||||
kval = parseInt(String.fromCharCode(kc));
|
||||
|
||||
if (isNaN(kval)) {
|
||||
(kc !== 13) // enter
|
||||
&& kc !== 8 // bs
|
||||
&& kc !== 9 // tab
|
||||
&& kc !== 189 // -
|
||||
&& (kc !== 190
|
||||
|| s.$.val().match(/\./)) // . allowed once
|
||||
&& e.preventDefault();
|
||||
|
||||
// arrows
|
||||
if ($.inArray(kc,[37,38,39,40]) > -1) {
|
||||
e.preventDefault();
|
||||
|
||||
var v = s.o.parse(s.$.val()) + kv[kc] * m;
|
||||
s.o.stopper && (v = max(min(v, s.o.max), s.o.min));
|
||||
|
||||
s.change(s._validate(v));
|
||||
s._draw();
|
||||
|
||||
// long time keydown speed-up
|
||||
to = window.setTimeout(function () {
|
||||
m *= 2;
|
||||
}, 30);
|
||||
}
|
||||
}
|
||||
}
|
||||
)
|
||||
.bind(
|
||||
"keyup",
|
||||
function (e) {
|
||||
if (isNaN(kval)) {
|
||||
if (to) {
|
||||
window.clearTimeout(to);
|
||||
to = null;
|
||||
m = 1;
|
||||
s.val(s.$.val());
|
||||
}
|
||||
} else {
|
||||
// kval postcond
|
||||
(s.$.val() > s.o.max && s.$.val(s.o.max))
|
||||
|| (s.$.val() < s.o.min && s.$.val(s.o.min));
|
||||
}
|
||||
}
|
||||
);
|
||||
|
||||
this.$c.bind("mousewheel DOMMouseScroll", mw);
|
||||
this.$.bind("mousewheel DOMMouseScroll", mw);
|
||||
};
|
||||
|
||||
this.init = function () {
|
||||
if (this.v < this.o.min
|
||||
|| this.v > this.o.max) { this.v = this.o.min; }
|
||||
|
||||
this.$.val(this.v);
|
||||
this.w2 = this.w / 2;
|
||||
this.cursorExt = this.o.cursor / 100;
|
||||
this.xy = this.w2 * this.scale;
|
||||
this.lineWidth = this.xy * this.o.thickness;
|
||||
this.lineCap = this.o.lineCap;
|
||||
this.radius = this.xy - this.lineWidth / 2;
|
||||
|
||||
this.o.angleOffset
|
||||
&& (this.o.angleOffset = isNaN(this.o.angleOffset) ? 0 : this.o.angleOffset);
|
||||
|
||||
this.o.angleArc
|
||||
&& (this.o.angleArc = isNaN(this.o.angleArc) ? this.PI2 : this.o.angleArc);
|
||||
|
||||
// deg to rad
|
||||
this.angleOffset = this.o.angleOffset * Math.PI / 180;
|
||||
this.angleArc = this.o.angleArc * Math.PI / 180;
|
||||
|
||||
// compute start and end angles
|
||||
this.startAngle = 1.5 * Math.PI + this.angleOffset;
|
||||
this.endAngle = 1.5 * Math.PI + this.angleOffset + this.angleArc;
|
||||
|
||||
var s = max(
|
||||
String(Math.abs(this.o.max)).length,
|
||||
String(Math.abs(this.o.min)).length,
|
||||
2
|
||||
) + 2;
|
||||
|
||||
this.o.displayInput
|
||||
&& this.i.css({
|
||||
'width' : ((this.w / 2 + 4) >> 0) + 'px',
|
||||
'height' : ((this.w / 3) >> 0) + 'px',
|
||||
'position' : 'absolute',
|
||||
'vertical-align' : 'middle',
|
||||
'margin-top' : ((this.w / 3) >> 0) + 'px',
|
||||
'margin-left' : '-' + ((this.w * 3 / 4 + 2) >> 0) + 'px',
|
||||
'border' : 0,
|
||||
'background' : 'none',
|
||||
'font' : this.o.fontWeight + ' ' + ((this.w / s) >> 0) + 'px ' + this.o.font,
|
||||
'text-align' : 'center',
|
||||
'color' : this.o.inputColor || this.o.fgColor,
|
||||
'padding' : '0px',
|
||||
'-webkit-appearance': 'none'
|
||||
}) || this.i.css({
|
||||
'width': '0px',
|
||||
'visibility': 'hidden'
|
||||
});
|
||||
};
|
||||
|
||||
this.change = function (v) {
|
||||
this.cv = v;
|
||||
this.$.val(this.o.format(v));
|
||||
};
|
||||
|
||||
this.angle = function (v) {
|
||||
return (v - this.o.min) * this.angleArc / (this.o.max - this.o.min);
|
||||
};
|
||||
|
||||
this.arc = function (v) {
|
||||
var sa, ea;
|
||||
v = this.angle(v);
|
||||
if (this.o.flip) {
|
||||
sa = this.endAngle + 0.00001;
|
||||
ea = sa - v - 0.00001;
|
||||
} else {
|
||||
sa = this.startAngle - 0.00001;
|
||||
ea = sa + v + 0.00001;
|
||||
}
|
||||
this.o.cursor
|
||||
&& (sa = ea - this.cursorExt)
|
||||
&& (ea = ea + this.cursorExt);
|
||||
|
||||
return {
|
||||
s: sa,
|
||||
e: ea,
|
||||
d: this.o.flip && !this.o.cursor
|
||||
};
|
||||
};
|
||||
|
||||
this.draw = function () {
|
||||
var c = this.g, // context
|
||||
a = this.arc(this.cv), // Arc
|
||||
pa, // Previous arc
|
||||
r = 1;
|
||||
|
||||
c.lineWidth = this.lineWidth;
|
||||
c.lineCap = this.lineCap;
|
||||
|
||||
if (this.o.bgColor !== "none") {
|
||||
c.beginPath();
|
||||
c.strokeStyle = this.o.bgColor;
|
||||
c.arc(this.xy, this.xy, this.radius, this.endAngle - 0.00001, this.startAngle + 0.00001, true);
|
||||
c.stroke();
|
||||
}
|
||||
|
||||
if (this.o.displayPrevious) {
|
||||
pa = this.arc(this.v);
|
||||
c.beginPath();
|
||||
c.strokeStyle = this.pColor;
|
||||
c.arc(this.xy, this.xy, this.radius, pa.s, pa.e, pa.d);
|
||||
c.stroke();
|
||||
r = this.cv == this.v;
|
||||
}
|
||||
|
||||
c.beginPath();
|
||||
c.strokeStyle = r ? this.o.fgColor : this.fgColor ;
|
||||
c.arc(this.xy, this.xy, this.radius, a.s, a.e, a.d);
|
||||
c.stroke();
|
||||
};
|
||||
|
||||
this.cancel = function () {
|
||||
this.val(this.v);
|
||||
};
|
||||
};
|
||||
|
||||
$.fn.dial = $.fn.knob = function (o) {
|
||||
return this.each(
|
||||
function () {
|
||||
var d = new k.Dial();
|
||||
d.o = o;
|
||||
d.$ = $(this);
|
||||
d.run();
|
||||
}
|
||||
).parent();
|
||||
};
|
||||
|
||||
}));
|
||||
Reference in New Issue
Block a user