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429 lines
22 KiB
429 lines
22 KiB
/** |
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* jqPlot |
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* Pure JavaScript plotting plugin using jQuery |
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* |
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* Version: 1.0.8 |
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* Revision: 1250 |
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* |
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* Copyright (c) 2009-2013 Chris Leonello |
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* jqPlot is currently available for use in all personal or commercial projects |
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* under both the MIT (http://www.opensource.org/licenses/mit-license.php) and GPL |
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* version 2.0 (http://www.gnu.org/licenses/gpl-2.0.html) licenses. This means that you can |
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* choose the license that best suits your project and use it accordingly. |
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* |
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* Although not required, the author would appreciate an email letting him |
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* know of any substantial use of jqPlot. You can reach the author at: |
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* chris at jqplot dot com or see http://www.jqplot.com/info.php . |
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* |
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* If you are feeling kind and generous, consider supporting the project by |
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* making a donation at: http://www.jqplot.com/donate.php . |
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* |
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* sprintf functions contained in jqplot.sprintf.js by Ash Searle: |
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* |
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* version 2007.04.27 |
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* author Ash Searle |
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* http://hexmen.com/blog/2007/03/printf-sprintf/ |
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* http://hexmen.com/js/sprintf.js |
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* The author (Ash Searle) has placed this code in the public domain: |
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* "This code is unrestricted: you are free to use it however you like." |
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* |
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*/ |
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(function($) { |
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// Class: $.jqplot.CanvasGridRenderer |
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// The default jqPlot grid renderer, creating a grid on a canvas element. |
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// The renderer has no additional options beyond the <Grid> class. |
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$.jqplot.PyramidGridRenderer = function(){ |
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$.jqplot.CanvasGridRenderer.call(this); |
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}; |
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$.jqplot.PyramidGridRenderer.prototype = new $.jqplot.CanvasGridRenderer(); |
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$.jqplot.PyramidGridRenderer.prototype.constructor = $.jqplot.PyramidGridRenderer; |
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// called with context of Grid object |
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$.jqplot.CanvasGridRenderer.prototype.init = function(options) { |
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this._ctx; |
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this.plotBands = { |
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show: false, |
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color: 'rgb(230, 219, 179)', |
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axis: 'y', |
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start: null, |
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interval: 10 |
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}; |
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$.extend(true, this, options); |
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// set the shadow renderer options |
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var sopts = {lineJoin:'miter', lineCap:'round', fill:false, isarc:false, angle:this.shadowAngle, offset:this.shadowOffset, alpha:this.shadowAlpha, depth:this.shadowDepth, lineWidth:this.shadowWidth, closePath:false, strokeStyle:this.shadowColor}; |
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this.renderer.shadowRenderer.init(sopts); |
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}; |
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$.jqplot.PyramidGridRenderer.prototype.draw = function() { |
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this._ctx = this._elem.get(0).getContext("2d"); |
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var ctx = this._ctx; |
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var axes = this._axes; |
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var xp = axes.xaxis.u2p; |
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var yp = axes.yMidAxis.u2p; |
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var xnudge = axes.xaxis.max/1000.0; |
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var xp0 = xp(0); |
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var xpn = xp(xnudge); |
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var ax = ['xaxis', 'yaxis', 'x2axis', 'y2axis','yMidAxis']; |
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// Add the grid onto the grid canvas. This is the bottom most layer. |
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ctx.save(); |
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ctx.clearRect(0, 0, this._plotDimensions.width, this._plotDimensions.height); |
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ctx.fillStyle = this.backgroundColor || this.background; |
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|
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ctx.fillRect(this._left, this._top, this._width, this._height); |
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if (this.plotBands.show) { |
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ctx.save(); |
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var pb = this.plotBands; |
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ctx.fillStyle = pb.color; |
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var axis; |
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var x, y, w, h; |
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// find axis to work with |
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if (pb.axis.charAt(0) === 'x') { |
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if (axes.xaxis.show) { |
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axis = axes.xaxis; |
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} |
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} |
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else if (pb.axis.charAt(0) === 'y') { |
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if (axes.yaxis.show) { |
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axis = axes.yaxis; |
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} |
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else if (axes.y2axis.show) { |
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axis = axes.y2axis; |
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} |
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else if (axes.yMidAxis.show) { |
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axis = axes.yMidAxis; |
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} |
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} |
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if (axis !== undefined) { |
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// draw some rectangles |
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var start = pb.start; |
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if (start === null) { |
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start = axis.min; |
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} |
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for (var i = start; i < axis.max; i += 2 * pb.interval) { |
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if (axis.name.charAt(0) === 'y') { |
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x = this._left; |
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if ((i + pb.interval) < axis.max) { |
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y = axis.series_u2p(i + pb.interval) + this._top; |
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} |
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else { |
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y = axis.series_u2p(axis.max) + this._top; |
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} |
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w = this._right - this._left; |
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h = axis.series_u2p(start) - axis.series_u2p(start + pb.interval); |
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ctx.fillRect(x, y, w, h); |
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} |
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// else { |
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// y = 0; |
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// x = axis.series_u2p(i); |
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// h = this._height; |
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// w = axis.series_u2p(start + pb.interval) - axis.series_u2p(start); |
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// } |
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} |
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} |
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ctx.restore(); |
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} |
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ctx.save(); |
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ctx.lineJoin = 'miter'; |
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ctx.lineCap = 'butt'; |
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ctx.lineWidth = this.gridLineWidth; |
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ctx.strokeStyle = this.gridLineColor; |
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var b, e, s, m; |
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for (var i=5; i>0; i--) { |
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var name = ax[i-1]; |
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var axis = axes[name]; |
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var ticks = axis._ticks; |
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var numticks = ticks.length; |
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if (axis.show) { |
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if (axis.drawBaseline) { |
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var bopts = {}; |
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if (axis.baselineWidth !== null) { |
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bopts.lineWidth = axis.baselineWidth; |
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} |
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if (axis.baselineColor !== null) { |
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bopts.strokeStyle = axis.baselineColor; |
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} |
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switch (name) { |
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case 'xaxis': |
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if (axes.yMidAxis.show) { |
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drawLine (this._left, this._bottom, xp0, this._bottom, bopts); |
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drawLine (xpn, this._bottom, this._right, this._bottom, bopts); |
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} |
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else { |
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drawLine (this._left, this._bottom, this._right, this._bottom, bopts); |
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} |
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break; |
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case 'yaxis': |
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drawLine (this._left, this._bottom, this._left, this._top, bopts); |
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break; |
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case 'yMidAxis': |
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drawLine(xp0, this._bottom, xp0, this._top, bopts); |
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drawLine(xpn, this._bottom, xpn, this._top, bopts); |
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break; |
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case 'x2axis': |
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if (axes.yMidAxis.show) { |
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drawLine (this._left, this._top, xp0, this._top, bopts); |
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drawLine (xpn, this._top, this._right, this._top, bopts); |
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} |
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else { |
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drawLine (this._left, this._bottom, this._right, this._bottom, bopts); |
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} |
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break; |
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case 'y2axis': |
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drawLine (this._right, this._bottom, this._right, this._top, bopts); |
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break; |
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} |
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} |
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for (var j=numticks; j>0; j--) { |
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var t = ticks[j-1]; |
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if (t.show) { |
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var pos = Math.round(axis.u2p(t.value)) + 0.5; |
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switch (name) { |
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case 'xaxis': |
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// draw the grid line if we should |
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if (t.showGridline && this.drawGridlines && (!t.isMinorTick || axis.showMinorTicks)) { |
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drawLine(pos, this._top, pos, this._bottom); |
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} |
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// draw the mark |
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if (t.showMark && t.mark && (!t.isMinorTick || axis.showMinorTicks)) { |
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s = t.markSize; |
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m = t.mark; |
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var pos = Math.round(axis.u2p(t.value)) + 0.5; |
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switch (m) { |
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case 'outside': |
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b = this._bottom; |
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e = this._bottom+s; |
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break; |
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case 'inside': |
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b = this._bottom-s; |
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e = this._bottom; |
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break; |
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case 'cross': |
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b = this._bottom-s; |
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e = this._bottom+s; |
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break; |
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default: |
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b = this._bottom; |
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e = this._bottom+s; |
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break; |
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} |
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// draw the shadow |
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if (this.shadow) { |
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this.renderer.shadowRenderer.draw(ctx, [[pos,b],[pos,e]], {lineCap:'butt', lineWidth:this.gridLineWidth, offset:this.gridLineWidth*0.75, depth:2, fill:false, closePath:false}); |
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} |
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// draw the line |
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drawLine(pos, b, pos, e); |
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} |
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break; |
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case 'yaxis': |
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// draw the grid line |
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if (t.showGridline && this.drawGridlines && (!t.isMinorTick || axis.showMinorTicks)) { |
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drawLine(this._right, pos, this._left, pos); |
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} |
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// draw the mark |
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if (t.showMark && t.mark && (!t.isMinorTick || axis.showMinorTicks)) { |
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s = t.markSize; |
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m = t.mark; |
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var pos = Math.round(axis.u2p(t.value)) + 0.5; |
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switch (m) { |
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case 'outside': |
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b = this._left-s; |
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e = this._left; |
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break; |
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case 'inside': |
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b = this._left; |
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e = this._left+s; |
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break; |
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case 'cross': |
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b = this._left-s; |
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e = this._left+s; |
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break; |
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default: |
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b = this._left-s; |
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e = this._left; |
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break; |
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} |
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// draw the shadow |
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if (this.shadow) { |
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this.renderer.shadowRenderer.draw(ctx, [[b, pos], [e, pos]], {lineCap:'butt', lineWidth:this.gridLineWidth*1.5, offset:this.gridLineWidth*0.75, fill:false, closePath:false}); |
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} |
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drawLine(b, pos, e, pos, {strokeStyle:axis.borderColor}); |
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} |
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break; |
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case 'yMidAxis': |
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// draw the grid line |
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if (t.showGridline && this.drawGridlines && (!t.isMinorTick || axis.showMinorTicks)) { |
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drawLine(this._left, pos, xp0, pos); |
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drawLine(xpn, pos, this._right, pos); |
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} |
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// draw the mark |
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if (t.showMark && t.mark && (!t.isMinorTick || axis.showMinorTicks)) { |
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s = t.markSize; |
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m = t.mark; |
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var pos = Math.round(axis.u2p(t.value)) + 0.5; |
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b = xp0; |
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e = xp0 + s; |
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// draw the shadow |
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if (this.shadow) { |
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this.renderer.shadowRenderer.draw(ctx, [[b, pos], [e, pos]], {lineCap:'butt', lineWidth:this.gridLineWidth*1.5, offset:this.gridLineWidth*0.75, fill:false, closePath:false}); |
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} |
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drawLine(b, pos, e, pos, {strokeStyle:axis.borderColor}); |
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b = xpn - s; |
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e = xpn; |
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// draw the shadow |
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if (this.shadow) { |
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this.renderer.shadowRenderer.draw(ctx, [[b, pos], [e, pos]], {lineCap:'butt', lineWidth:this.gridLineWidth*1.5, offset:this.gridLineWidth*0.75, fill:false, closePath:false}); |
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} |
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drawLine(b, pos, e, pos, {strokeStyle:axis.borderColor}); |
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} |
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break; |
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case 'x2axis': |
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// draw the grid line |
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if (t.showGridline && this.drawGridlines && (!t.isMinorTick || axis.showMinorTicks)) { |
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drawLine(pos, this._bottom, pos, this._top); |
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} |
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|
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// draw the mark |
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if (t.showMark && t.mark && (!t.isMinorTick || axis.showMinorTicks)) { |
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s = t.markSize; |
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m = t.mark; |
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var pos = Math.round(axis.u2p(t.value)) + 0.5; |
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switch (m) { |
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case 'outside': |
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b = this._top-s; |
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e = this._top; |
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break; |
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case 'inside': |
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b = this._top; |
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e = this._top+s; |
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break; |
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case 'cross': |
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b = this._top-s; |
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e = this._top+s; |
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break; |
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default: |
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b = this._top-s; |
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e = this._top; |
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break; |
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} |
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// draw the shadow |
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if (this.shadow) { |
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this.renderer.shadowRenderer.draw(ctx, [[pos,b],[pos,e]], {lineCap:'butt', lineWidth:this.gridLineWidth, offset:this.gridLineWidth*0.75, depth:2, fill:false, closePath:false}); |
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} |
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drawLine(pos, b, pos, e); |
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} |
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break; |
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case 'y2axis': |
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// draw the grid line |
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if (t.showGridline && this.drawGridlines && (!t.isMinorTick || axis.showMinorTicks)) { |
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drawLine(this._left, pos, this._right, pos); |
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} |
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// draw the mark |
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if (t.showMark && t.mark && (!t.isMinorTick || axis.showMinorTicks)) { |
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s = t.markSize; |
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m = t.mark; |
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var pos = Math.round(axis.u2p(t.value)) + 0.5; |
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switch (m) { |
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case 'outside': |
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b = this._right; |
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e = this._right+s; |
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break; |
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case 'inside': |
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b = this._right-s; |
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e = this._right; |
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break; |
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case 'cross': |
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b = this._right-s; |
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e = this._right+s; |
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break; |
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default: |
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b = this._right; |
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e = this._right+s; |
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break; |
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} |
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// draw the shadow |
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if (this.shadow) { |
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this.renderer.shadowRenderer.draw(ctx, [[b, pos], [e, pos]], {lineCap:'butt', lineWidth:this.gridLineWidth*1.5, offset:this.gridLineWidth*0.75, fill:false, closePath:false}); |
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} |
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drawLine(b, pos, e, pos, {strokeStyle:axis.borderColor}); |
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} |
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break; |
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default: |
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break; |
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} |
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} |
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} |
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t = null; |
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} |
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axis = null; |
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ticks = null; |
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} |
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ctx.restore(); |
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|
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function drawLine(bx, by, ex, ey, opts) { |
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ctx.save(); |
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opts = opts || {}; |
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if (opts.lineWidth == null || opts.lineWidth != 0){ |
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$.extend(true, ctx, opts); |
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ctx.beginPath(); |
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ctx.moveTo(bx, by); |
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ctx.lineTo(ex, ey); |
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ctx.stroke(); |
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} |
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ctx.restore(); |
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} |
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if (this.shadow) { |
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if (axes.yMidAxis.show) { |
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var points = [[this._left, this._bottom], [xp0, this._bottom]]; |
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this.renderer.shadowRenderer.draw(ctx, points); |
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var points = [[xpn, this._bottom], [this._right, this._bottom], [this._right, this._top]]; |
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this.renderer.shadowRenderer.draw(ctx, points); |
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var points = [[xp0, this._bottom], [xp0, this._top]]; |
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this.renderer.shadowRenderer.draw(ctx, points); |
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} |
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else { |
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var points = [[this._left, this._bottom], [this._right, this._bottom], [this._right, this._top]]; |
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this.renderer.shadowRenderer.draw(ctx, points); |
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} |
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} |
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// Now draw border around grid. Use axis border definitions. start at |
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// upper left and go clockwise. |
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if (this.borderWidth != 0 && this.drawBorder) { |
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if (axes.yMidAxis.show) { |
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drawLine (this._left, this._top, xp0, this._top, {lineCap:'round', strokeStyle:axes.x2axis.borderColor, lineWidth:axes.x2axis.borderWidth}); |
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drawLine (xpn, this._top, this._right, this._top, {lineCap:'round', strokeStyle:axes.x2axis.borderColor, lineWidth:axes.x2axis.borderWidth}); |
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drawLine (this._right, this._top, this._right, this._bottom, {lineCap:'round', strokeStyle:axes.y2axis.borderColor, lineWidth:axes.y2axis.borderWidth}); |
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drawLine (this._right, this._bottom, xpn, this._bottom, {lineCap:'round', strokeStyle:axes.xaxis.borderColor, lineWidth:axes.xaxis.borderWidth}); |
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drawLine (xp0, this._bottom, this._left, this._bottom, {lineCap:'round', strokeStyle:axes.xaxis.borderColor, lineWidth:axes.xaxis.borderWidth}); |
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drawLine (this._left, this._bottom, this._left, this._top, {lineCap:'round', strokeStyle:axes.yaxis.borderColor, lineWidth:axes.yaxis.borderWidth}); |
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drawLine (xp0, this._bottom, xp0, this._top, {lineCap:'round', strokeStyle:axes.yaxis.borderColor, lineWidth:axes.yaxis.borderWidth}); |
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drawLine (xpn, this._bottom, xpn, this._top, {lineCap:'round', strokeStyle:axes.yaxis.borderColor, lineWidth:axes.yaxis.borderWidth}); |
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} |
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else { |
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drawLine (this._left, this._top, this._right, this._top, {lineCap:'round', strokeStyle:axes.x2axis.borderColor, lineWidth:axes.x2axis.borderWidth}); |
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drawLine (this._right, this._top, this._right, this._bottom, {lineCap:'round', strokeStyle:axes.y2axis.borderColor, lineWidth:axes.y2axis.borderWidth}); |
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drawLine (this._right, this._bottom, this._left, this._bottom, {lineCap:'round', strokeStyle:axes.xaxis.borderColor, lineWidth:axes.xaxis.borderWidth}); |
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drawLine (this._left, this._bottom, this._left, this._top, {lineCap:'round', strokeStyle:axes.yaxis.borderColor, lineWidth:axes.yaxis.borderWidth}); |
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} |
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} |
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// ctx.lineWidth = this.borderWidth; |
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// ctx.strokeStyle = this.borderColor; |
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// ctx.strokeRect(this._left, this._top, this._width, this._height); |
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|
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ctx.restore(); |
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ctx = null; |
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axes = null; |
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}; |
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})(jQuery);
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