Web/js/jqplot/plugins/jqplot.canvasAxisLabelRenderer.js

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/**
 * jqPlot
 * Pure JavaScript plotting plugin using jQuery
 *
 * Version: 1.0.8
 * Revision: 1250
 *
 * Copyright (c) 2009-2013 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.CanvasAxisLabelRenderer
    * Renderer to draw axis labels with a canvas element to support advanced
    * featrues such as rotated text.  This renderer uses a separate rendering engine
    * to draw the text on the canvas.  Two modes of rendering the text are available.
    * If the browser has native font support for canvas fonts (currently Mozila 3.5
    * and Safari 4), you can enable text rendering with the canvas fillText method.
    * You do so by setting the "enableFontSupport" option to true. 
    * 
    * Browsers lacking native font support will have the text drawn on the canvas
    * using the Hershey font metrics.  Even if the "enableFontSupport" option is true
    * non-supporting browsers will still render with the Hershey font.
    * 
    */
    $.jqplot.CanvasAxisLabelRenderer = function(options) {
        // Group: Properties
        
        // prop: angle
        // angle of text, measured clockwise from x axis.
        this.angle = 0;
        // name of the axis associated with this tick
        this.axis;
        // prop: show
        // whether or not to show the tick (mark and label).
        this.show = true;
        // prop: showLabel
        // whether or not to show the label.
        this.showLabel = true;
        // prop: label