Subversion-Projekte lars-tiefland.ci

/**

 * 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.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);