/home/kueuepay/public_html/public/backend/js/jquery.easypiechart.js
/**!
* easy-pie-chart
* Lightweight plugin to render simple, animated and retina optimized pie charts
*
* @license
* @author Robert Fleischmann <rendro87@gmail.com> (http://robert-fleischmann.de)
* @version 2.1.7
**/
(function (root, factory) {
if (typeof define === 'function' && define.amd) {
// AMD. Register as an anonymous module unless amdModuleId is set
define(["jquery"], function (a0) {
return (factory(a0));
});
} else if (typeof exports === 'object') {
// Node. Does not work with strict CommonJS, but
// only CommonJS-like environments that support module.exports,
// like Node.
module.exports = factory(require("jquery"));
} else {
factory(jQuery);
}
}(this, function ($) {
/**
* Renderer to render the chart on a canvas object
* @param {DOMElement} el DOM element to host the canvas (root of the plugin)
* @param {object} options options object of the plugin
*/
var CanvasRenderer = function(el, options) {
var cachedBackground;
var canvas = document.createElement('canvas');
el.appendChild(canvas);
if (typeof(G_vmlCanvasManager) === 'object') {
G_vmlCanvasManager.initElement(canvas);
}
var ctx = canvas.getContext('2d');
canvas.width = canvas.height = options.size;
// canvas on retina devices
var scaleBy = 1;
if (window.devicePixelRatio > 1) {
scaleBy = window.devicePixelRatio;
canvas.style.width = canvas.style.height = [options.size, 'px'].join('');
canvas.width = canvas.height = options.size * scaleBy;
ctx.scale(scaleBy, scaleBy);
}
// move 0,0 coordinates to the center
ctx.translate(options.size / 2, options.size / 2);
// rotate canvas -90deg
ctx.rotate((-1 / 2 + options.rotate / 180) * Math.PI);
var radius = (options.size - options.lineWidth) / 2;
if (options.scaleColor && options.scaleLength) {
radius -= options.scaleLength + 2; // 2 is the distance between scale and bar
}
// IE polyfill for Date
Date.now = Date.now || function() {
return +(new Date());
};
/**
* Draw a circle around the center of the canvas
* @param {strong} color Valid CSS color string
* @param {number} lineWidth Width of the line in px
* @param {number} percent Percentage to draw (float between -1 and 1)
*/
var drawCircle = function(color, lineWidth, percent) {
percent = Math.min(Math.max(-1, percent || 0), 1);
var isNegative = percent <= 0 ? true : false;
ctx.beginPath();
ctx.arc(0, 0, radius, 0, Math.PI * 2 * percent, isNegative);
ctx.strokeStyle = color;
ctx.lineWidth = lineWidth;
ctx.stroke();
};
/**
* Draw the scale of the chart
*/
var drawScale = function() {
var offset;
var length;
ctx.lineWidth = 1;
ctx.fillStyle = options.scaleColor;
ctx.save();
for (var i = 24; i > 0; --i) {
if (i % 6 === 0) {
length = options.scaleLength;
offset = 0;
} else {
length = options.scaleLength * 0.6;
offset = options.scaleLength - length;
}
ctx.fillRect(-options.size/2 + offset, 0, length, 1);
ctx.rotate(Math.PI / 12);
}
ctx.restore();
};
/**
* Request animation frame wrapper with polyfill
* @return {function} Request animation frame method or timeout fallback
*/
var reqAnimationFrame = (function() {
return window.requestAnimationFrame ||
window.webkitRequestAnimationFrame ||
window.mozRequestAnimationFrame ||
function(callback) {
window.setTimeout(callback, 1000 / 60);
};
}());
/**
* Draw the background of the plugin including the scale and the track
*/
var drawBackground = function() {
if(options.scaleColor) drawScale();
if(options.trackColor) drawCircle(options.trackColor, options.trackWidth || options.lineWidth, 1);
};
/**
* Canvas accessor
*/
this.getCanvas = function() {
return canvas;
};
/**
* Canvas 2D context 'ctx' accessor
*/
this.getCtx = function() {
return ctx;
};
/**
* Clear the complete canvas
*/
this.clear = function() {
ctx.clearRect(options.size / -2, options.size / -2, options.size, options.size);
};
/**
* Draw the complete chart
* @param {number} percent Percent shown by the chart between -100 and 100
*/
this.draw = function(percent) {
// do we need to render a background
if (!!options.scaleColor || !!options.trackColor) {
// getImageData and putImageData are supported
if (ctx.getImageData && ctx.putImageData) {
if (!cachedBackground) {
drawBackground();
cachedBackground = ctx.getImageData(0, 0, options.size * scaleBy, options.size * scaleBy);
} else {
ctx.putImageData(cachedBackground, 0, 0);
}
} else {
this.clear();
drawBackground();
}
} else {
this.clear();
}
ctx.lineCap = options.lineCap;
// if barcolor is a function execute it and pass the percent as a value
var color;
if (typeof(options.barColor) === 'function') {
color = options.barColor(percent);
} else {
color = options.barColor;
}
// draw bar
drawCircle(color, options.lineWidth, percent / 100);
}.bind(this);
/**
* Animate from some percent to some other percentage
* @param {number} from Starting percentage
* @param {number} to Final percentage
*/
this.animate = function(from, to) {
var startTime = Date.now();
options.onStart(from, to);
var animation = function() {
var process = Math.min(Date.now() - startTime, options.animate.duration);
var currentValue = options.easing(this, process, from, to - from, options.animate.duration);
this.draw(currentValue);
options.onStep(from, to, currentValue);
if (process >= options.animate.duration) {
options.onStop(from, to);
} else {
reqAnimationFrame(animation);
}
}.bind(this);
reqAnimationFrame(animation);
}.bind(this);
};
var EasyPieChart = function(el, opts) {
var defaultOptions = {
barColor: '#ef1e25',
trackColor: '#f9f9f9',
scaleColor: '#dfe0e0',
scaleLength: 5,
lineCap: 'round',
lineWidth: 3,
trackWidth: undefined,
size: 110,
rotate: 0,
animate: {
duration: 1000,
enabled: true
},
easing: function (x, t, b, c, d) { // more can be found here: http://gsgd.co.uk/sandbox/jquery/easing/
t = t / (d/2);
if (t < 1) {
return c / 2 * t * t + b;
}
return -c/2 * ((--t)*(t-2) - 1) + b;
},
onStart: function(from, to) {
return;
},
onStep: function(from, to, currentValue) {
return;
},
onStop: function(from, to) {
return;
}
};
// detect present renderer
if (typeof(CanvasRenderer) !== 'undefined') {
defaultOptions.renderer = CanvasRenderer;
} else if (typeof(SVGRenderer) !== 'undefined') {
defaultOptions.renderer = SVGRenderer;
} else {
throw new Error('Please load either the SVG- or the CanvasRenderer');
}
var options = {};
var currentValue = 0;
/**
* Initialize the plugin by creating the options object and initialize rendering
*/
var init = function() {
this.el = el;
this.options = options;
// merge user options into default options
for (var i in defaultOptions) {
if (defaultOptions.hasOwnProperty(i)) {
options[i] = opts && typeof(opts[i]) !== 'undefined' ? opts[i] : defaultOptions[i];
if (typeof(options[i]) === 'function') {
options[i] = options[i].bind(this);
}
}
}
// check for jQuery easing
if (typeof(options.easing) === 'string' && typeof(jQuery) !== 'undefined' && jQuery.isFunction(jQuery.easing[options.easing])) {
options.easing = jQuery.easing[options.easing];
} else {
options.easing = defaultOptions.easing;
}
// process earlier animate option to avoid bc breaks
if (typeof(options.animate) === 'number') {
options.animate = {
duration: options.animate,
enabled: true
};
}
if (typeof(options.animate) === 'boolean' && !options.animate) {
options.animate = {
duration: 1000,
enabled: options.animate
};
}
// create renderer
this.renderer = new options.renderer(el, options);
// initial draw
this.renderer.draw(currentValue);
// initial update
if (el.dataset && el.dataset.percent) {
this.update(parseFloat(el.dataset.percent));
} else if (el.getAttribute && el.getAttribute('data-percent')) {
this.update(parseFloat(el.getAttribute('data-percent')));
}
}.bind(this);
/**
* Update the value of the chart
* @param {number} newValue Number between 0 and 100
* @return {object} Instance of the plugin for method chaining
*/
this.update = function(newValue) {
newValue = parseFloat(newValue);
if (options.animate.enabled) {
this.renderer.animate(currentValue, newValue);
} else {
this.renderer.draw(newValue);
}
currentValue = newValue;
return this;
}.bind(this);
/**
* Disable animation
* @return {object} Instance of the plugin for method chaining
*/
this.disableAnimation = function() {
options.animate.enabled = false;
return this;
};
/**
* Enable animation
* @return {object} Instance of the plugin for method chaining
*/
this.enableAnimation = function() {
options.animate.enabled = true;
return this;
};
init();
};
$.fn.easyPieChart = function(options) {
return this.each(function() {
var instanceOptions;
if (!$.data(this, 'easyPieChart')) {
instanceOptions = $.extend({}, options, $(this).data());
$.data(this, 'easyPieChart', new EasyPieChart(this, instanceOptions));
}
});
};
}));
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