234 lines
8.9 KiB
JavaScript
234 lines
8.9 KiB
JavaScript
/**
|
|
* jqPlot
|
|
* Pure JavaScript plotting plugin using jQuery
|
|
*
|
|
* Version: 1.0.0b2_r792
|
|
*
|
|
* Copyright (c) 2009-2011 Chris Leonello
|
|
* jqPlot is currently available for use in all personal or commercial projects
|
|
* under both the MIT (http://www.opensource.org/licenses/mit-license.php) and GPL
|
|
* version 2.0 (http://www.gnu.org/licenses/gpl-2.0.html) licenses. This means that you can
|
|
* choose the license that best suits your project and use it accordingly.
|
|
*
|
|
* Although not required, the author would appreciate an email letting him
|
|
* know of any substantial use of jqPlot. You can reach the author at:
|
|
* chris at jqplot dot com or see http://www.jqplot.com/info.php .
|
|
*
|
|
* If you are feeling kind and generous, consider supporting the project by
|
|
* making a donation at: http://www.jqplot.com/donate.php .
|
|
*
|
|
* sprintf functions contained in jqplot.sprintf.js by Ash Searle:
|
|
*
|
|
* version 2007.04.27
|
|
* author Ash Searle
|
|
* http://hexmen.com/blog/2007/03/printf-sprintf/
|
|
* http://hexmen.com/js/sprintf.js
|
|
* The author (Ash Searle) has placed this code in the public domain:
|
|
* "This code is unrestricted: you are free to use it however you like."
|
|
*
|
|
*/
|
|
(function($) {
|
|
/**
|
|
* Class: $.jqplot.BlockRenderer
|
|
* Plugin renderer to draw a x-y block chart. A Block chart has data points displayed as
|
|
* colored squares with a text label inside. Data must be supplied in the form:
|
|
*
|
|
* > [[x1, y1, "label 1", {css}], [x2, y2, "label 2", {css}], ...]
|
|
*
|
|
* The label and css object are optional. If the label is ommitted, the
|
|
* box will collapse unless a css height and/or width is specified.
|
|
*
|
|
* The css object is an object specifying css properties
|
|
* such as:
|
|
*
|
|
* > {background:'#4f98a5', border:'3px solid gray', padding:'1px'}
|
|
*
|
|
* Note that css properties specified with the data point override defaults
|
|
* specified with the series.
|
|
*
|
|
*/
|
|
$.jqplot.BlockRenderer = function(){
|
|
$.jqplot.LineRenderer.call(this);
|
|
};
|
|
|
|
$.jqplot.BlockRenderer.prototype = new $.jqplot.LineRenderer();
|
|
$.jqplot.BlockRenderer.prototype.constructor = $.jqplot.BlockRenderer;
|
|
|
|
// called with scope of a series
|
|
$.jqplot.BlockRenderer.prototype.init = function(options) {
|
|
// Group: Properties
|
|
//
|
|
// prop: css
|
|
// default css styles that will be applied to all data blocks.
|
|
// these values will be overridden by css styles supplied with the
|
|
// individulal data points.
|
|
this.css = {padding:'2px', border:'1px solid #999', textAlign:'center'};
|
|
// prop: escapeHtml
|
|
// true to escape html in the box label.
|
|
this.escapeHtml = false;
|
|
// prop: insertBreaks
|
|
// true to turn spaces in data block label into html breaks <br />.
|
|
this.insertBreaks = true;
|
|
// prop: varyBlockColors
|
|
// true to vary the color of each block in this series according to
|
|
// the seriesColors array. False to set each block to the color
|
|
// specified on this series. This has no effect if a css background color
|
|
// option is specified in the renderer css options.
|
|
this.varyBlockColors = false;
|
|
$.extend(true, this, options);
|
|
if (this.css.backgroundColor) {
|
|
this.color = this.css.backgroundColor;
|
|
}
|
|
else if (this.css.background) {
|
|
this.color = this.css.background;
|
|
}
|
|
else if (!this.varyBlockColors) {
|
|
this.css.background = this.color;
|
|
}
|
|
this.canvas = new $.jqplot.BlockCanvas();
|
|
this.shadowCanvas = new $.jqplot.BlockCanvas();
|
|
this.canvas._plotDimensions = this._plotDimensions;
|
|
this.shadowCanvas._plotDimensions = this._plotDimensions;
|
|
this._type = 'block';
|
|
|
|
// group: Methods
|
|
//
|
|
// Method: moveBlock
|
|
// Moves an individual block. More efficient than redrawing
|
|
// the whole series by calling plot.drawSeries().
|
|
// Properties:
|
|
// idx - the 0 based index of the block or point in this series.
|
|
// x - the x coordinate in data units (value on x axis) to move the block to.
|
|
// y - the y coordinate in data units (value on the y axis) to move the block to.
|
|
// duration - optional parameter to create an animated movement. Can be a
|
|
// number (higher is slower animation) or 'fast', 'normal' or 'slow'. If not
|
|
// provided, the element is moved without any animation.
|
|
this.moveBlock = function (idx, x, y, duration) {
|
|
// update plotData, stackData, data and gridData
|
|
// x and y are in data coordinates.
|
|
var el = this.canvas._elem.children(':eq('+idx+')');
|
|
this.data[idx][0] = x;
|
|
this.data[idx][1] = y;
|
|
this._plotData[idx][0] = x;
|
|
this._plotData[idx][1] = y;
|
|
this._stackData[idx][0] = x;
|
|
this._stackData[idx][1] = y;
|
|
this.gridData[idx][0] = this._xaxis.series_u2p(x);
|
|
this.gridData[idx][1] = this._yaxis.series_u2p(y);
|
|
var w = el.outerWidth();
|
|
var h = el.outerHeight();
|
|
var left = this.gridData[idx][0] - w/2 + 'px';
|
|
var top = this.gridData[idx][1] - h/2 + 'px';
|
|
if (duration) {
|
|
if (parseInt(duration, 10)) {
|
|
duration = parseInt(duration, 10);
|
|
}
|
|
el.animate({left:left, top:top}, duration);
|
|
}
|
|
else {
|
|
el.css({left:left, top:top});
|
|
}
|
|
el = null;
|
|
};
|
|
};
|
|
|
|
// called with scope of series
|
|
$.jqplot.BlockRenderer.prototype.draw = function (ctx, gd, options) {
|
|
if (this.plugins.pointLabels) {
|
|
this.plugins.pointLabels.show = false;
|
|
}
|
|
var i, el, d, gd, t, css, w, h, left, top;
|
|
var opts = (options != undefined) ? options : {};
|
|
var colorGenerator = new $.jqplot.ColorGenerator(this.seriesColors);
|
|
this.canvas._elem.empty();
|
|
for (i=0; i<this.gridData.length; i++) {
|
|
d = this.data[i];
|
|
gd = this.gridData[i];
|
|
t = '';
|
|
css = {};
|
|
if (typeof d[2] == 'string') {
|
|
t = d[2];
|
|
}
|
|
else if (typeof d[2] == 'object') {
|
|
css = d[2];
|
|
}
|
|
if (typeof d[3] == 'object') {
|
|
css = d[3];
|
|
}
|
|
if (this.insertBreaks){
|
|
t = t.replace(/ /g, '<br />');
|
|
}
|
|
css = $.extend(true, {}, this.css, css);
|
|
// create a div
|
|
el = $('<div style="position:absolute;margin-left:auto;margin-right:auto;"></div>');
|
|
this.canvas._elem.append(el);
|
|
// set text
|
|
this.escapeHtml ? el.text(t) : el.html(t);
|
|
// style it
|
|
// remove styles we don't want overridden.
|
|
delete css.position;
|
|
delete css.marginRight;
|
|
delete css.marginLeft;
|
|
if (!css.background && !css.backgroundColor && !css.backgroundImage){
|
|
css.background = colorGenerator.next();
|
|
}
|
|
el.css(css);
|
|
w = el.outerWidth();
|
|
h = el.outerHeight();
|
|
left = gd[0] - w/2 + 'px';
|
|
top = gd[1] - h/2 + 'px';
|
|
el.css({left:left, top:top});
|
|
el = null;
|
|
}
|
|
};
|
|
|
|
$.jqplot.BlockCanvas = function() {
|
|
$.jqplot.ElemContainer.call(this);
|
|
this._ctx;
|
|
};
|
|
|
|
$.jqplot.BlockCanvas.prototype = new $.jqplot.ElemContainer();
|
|
$.jqplot.BlockCanvas.prototype.constructor = $.jqplot.BlockCanvas;
|
|
|
|
$.jqplot.BlockCanvas.prototype.createElement = function(offsets, clss, plotDimensions) {
|
|
this._offsets = offsets;
|
|
var klass = 'jqplot-blockCanvas';
|
|
if (clss != undefined) {
|
|
klass = clss;
|
|
}
|
|
var elem;
|
|
// if this canvas already has a dom element, don't make a new one.
|
|
if (this._elem) {
|
|
elem = this._elem.get(0);
|
|
}
|
|
else {
|
|
elem = document.createElement('div');
|
|
}
|
|
// if new plotDimensions supplied, use them.
|
|
if (plotDimensions != undefined) {
|
|
this._plotDimensions = plotDimensions;
|
|
}
|
|
|
|
var w = this._plotDimensions.width - this._offsets.left - this._offsets.right + 'px';
|
|
var h = this._plotDimensions.height - this._offsets.top - this._offsets.bottom + 'px';
|
|
this._elem = $(elem);
|
|
this._elem.css({ position: 'absolute', width:w, height:h, left: this._offsets.left, top: this._offsets.top });
|
|
|
|
this._elem.addClass(klass);
|
|
return this._elem;
|
|
};
|
|
|
|
$.jqplot.BlockCanvas.prototype.setContext = function() {
|
|
this._ctx = {
|
|
canvas:{
|
|
width:0,
|
|
height:0
|
|
},
|
|
clearRect:function(){return null;}
|
|
};
|
|
return this._ctx;
|
|
};
|
|
|
|
})(jQuery);
|
|
|
|
|