text: /**
   * 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.Dragable
       * Plugin to make plotted points dragable by the user.
       */
      $.jqplot.Dragable = function(options) {
          // Group: Properties
          this.markerRenderer = new $.jqplot.MarkerRenderer({shadow:false});
          this.shapeRenderer = new $.jqplot.ShapeRenderer();
          this.isDragging = false;
          this.isOver = false;
          this._ctx;
          this._elem;
          this._point;
          this._gridData;
          // prop: color
          // CSS color spec for the dragged point (and adjacent line segment or bar).
          this.color;
          // prop: constrainTo
          // Constrain dragging motion to an axis or to none.
          // Allowable values are 'none', 'x', 'y'
          this.constrainTo = 'none';  // 'x', 'y', or 'none';
          $.extend(true, this, options);
      };
      
      function DragCanvas() {
          $.jqplot.GenericCanvas.call(this);
          this.isDragging = false;
          this.isOver = false;
          this._neighbor;
          this._cursors = [];
      }
      
      DragCanvas.prototype = new $.jqplot.GenericCanvas();
      DragCanvas.prototype.constructor = DragCanvas;
      
      
      // called within scope of series
      $.jqplot.Dragable.parseOptions = function (defaults, opts) {
          var options = opts || {};
          this.plugins.dragable = new $.jqplot.Dragable(options.dragable);
          // since this function is called before series options are parsed,
          // we can set this here and it will be overridden if needed.
          this.isDragable = $.jqplot.config.enablePlugins;
      };
      
      // called within context of plot
      // create a canvas which we can draw on.
      // insert it before the eventCanvas, so eventCanvas will still capture events.
      // add a new DragCanvas object to the plot plugins to handle drawing on this new canvas.
      $.jqplot.Dragable.postPlotDraw = function() {
          // Memory Leaks patch    
          if (this.plugins.dragable && this.plugins.dragable.highlightCanvas) {
              this.plugins.dragable.highlightCanvas.resetCanvas();
              this.plugins.dragable.highlightCanvas = null;
          }
  
          this.plugins.dragable = {previousCursor:'auto', isOver:false};
          this.plugins.dragable.dragCanvas = new DragCanvas();
          
          this.eventCanvas._elem.before(this.plugins.dragable.dragCanvas.createElement(this._gridPadding, 'jqplot-dragable-canvas', this._plotDimensions, this));
          var dctx = this.plugins.dragable.dragCanvas.setContext();
      };
      
      //$.jqplot.preInitHooks.push($.jqplot.Dragable.init);
      $.jqplot.preParseSeriesOptionsHooks.push($.jqplot.Dragable.parseOptions);
      $.jqplot.postDrawHooks.push($.jqplot.Dragable.postPlotDraw);
      $.jqplot.eventListenerHooks.push(['jqplotMouseMove', handleMove]);
      $.jqplot.eventListenerHooks.push(['jqplotMouseDown', handleDown]);
      $.jqplot.eventListenerHooks.push(['jqplotMouseUp', handleUp]);
  
      
      function initDragPoint(plot, neighbor) {
          var s = plot.series[neighbor.seriesIndex];
          var drag = s.plugins.dragable;
          
          // first, init the mark renderer for the dragged point
          var smr = s.markerRenderer;
          var mr = drag.markerRenderer;
          mr.style = smr.style;
          mr.lineWidth = smr.lineWidth + 2.5;
          mr.size = smr.size + 5;
          if (!drag.color) {
              var rgba = $.jqplot.getColorComponents(smr.color);
              var newrgb = [rgba[0], rgba[1], rgba[2]];
              var alpha = (rgba[3] >= 0.6) ? rgba[3]*0.6 : rgba[3]*(2-rgba[3]);
              drag.color = 'rgba('+newrgb[0]+','+newrgb[1]+','+newrgb[2]+','+alpha+')';
          }
          mr.color = drag.color;
          mr.init();
  
          var start = (neighbor.pointIndex > 0) ? neighbor.pointIndex - 1 : 0;
          var end = neighbor.pointIndex+2;
          drag._gridData = s.gridData.slice(start, end);
      }
      
      function handleMove(ev, gridpos, datapos, neighbor, plot) {
          if (plot.plugins.dragable.dragCanvas.isDragging) {
              var dc = plot.plugins.dragable.dragCanvas;
              var dp = dc._neighbor;
              var s = plot.series[dp.seriesIndex];
              var drag = s.plugins.dragable;
              var gd = s.gridData;
              
              // compute the new grid position with any constraints.
              var x = (drag.constrainTo == 'y') ? dp.gridData[0] : gridpos.x;
              var y = (drag.constrainTo == 'x') ? dp.gridData[1] : gridpos.y;
              
              // compute data values for any listeners.
              var xu = s._xaxis.series_p2u(x);
              var yu = s._yaxis.series_p2u(y);
              
              // clear the canvas then redraw effect at new position.
              var ctx = dc._ctx;
              ctx.clearRect(0, 0, ctx.canvas.width, ctx.canvas.height);
              
              // adjust our gridData for the new mouse position
              if (dp.pointIndex > 0) {
                  drag._gridData[1] = [x, y];
              }
              else {
                  drag._gridData[0] = [x, y];
              }
              plot.series[dp.seriesIndex].draw(dc._ctx, {gridData:drag._gridData, shadow:false, preventJqPlotSeriesDrawTrigger:true, color:drag.color, markerOptions:{color:drag.color, shadow:false}, trendline:{show:false}});
              plot.target.trigger('jqplotSeriesPointChange', [dp.seriesIndex, dp.pointIndex, [xu,yu], [x,y]]);
          }
          else if (neighbor != null) {
              var series = plot.series[neighbor.seriesIndex];
              if (series.isDragable) {
                  var dc = plot.plugins.dragable.dragCanvas;
                  if (!dc.isOver) {
                      dc._cursors.push(ev.target.style.cursor);
                      ev.target.style.cursor = "pointer";
                  }
                  dc.isOver = true;
              }
          }
          else if (neighbor == null) {
              var dc = plot.plugins.dragable.dragCanvas;
              if (dc.isOver) {
                  ev.target.style.cursor = dc._cursors.pop();
                  dc.isOver = false;
              }
          }
      }
      
      function handleDown(ev, gridpos, datapos, neighbor, plot) {
          var dc = plot.plugins.dragable.dragCanvas;
          dc._cursors.push(ev.target.style.cursor);
          if (neighbor != null) {
              var s = plot.series[neighbor.seriesIndex];
              var drag = s.plugins.dragable;
              if (s.isDragable && !dc.isDragging) {
                  dc._neighbor = neighbor;
                  dc.isDragging = true;
                  initDragPoint(plot, neighbor);
                  drag.markerRenderer.draw(s.gridData[neighbor.pointIndex][0], s.gridData[neighbor.pointIndex][1], dc._ctx);
                  ev.target.style.cursor = "move";
                  plot.target.trigger('jqplotDragStart', [neighbor.seriesIndex, neighbor.pointIndex, gridpos, datapos]);
              }
          }
          // Just in case of a hickup, we'll clear the drag canvas and reset.
          else {
             var ctx = dc._ctx;
             ctx.clearRect(0, 0, ctx.canvas.width, ctx.canvas.height);
             dc.isDragging = false;
          }
      }
      
      function handleUp(ev, gridpos, datapos, neighbor, plot) {
          if (plot.plugins.dragable.dragCanvas.isDragging) {
              var dc = plot.plugins.dragable.dragCanvas;
              // clear the canvas
              var ctx = dc._ctx;
              ctx.clearRect(0, 0, ctx.canvas.width, ctx.canvas.height);
              dc.isDragging = false;
              // redraw the series canvas at the new point.
              var dp = dc._neighbor;
              var s = plot.series[dp.seriesIndex];
              var drag = s.plugins.dragable;
              // compute the new grid position with any constraints.
              var x = (drag.constrainTo == 'y') ? dp.data[0] : datapos[s.xaxis];
              var y = (drag.constrainTo == 'x') ? dp.data[1] : datapos[s.yaxis];
              // var x = datapos[s.xaxis];
              // var y = datapos[s.yaxis];
              s.data[dp.pointIndex][0] = x;
              s.data[dp.pointIndex][1] = y;
              plot.drawSeries({preventJqPlotSeriesDrawTrigger:true}, dp.seriesIndex);
              dc._neighbor = null;
              ev.target.style.cursor = dc._cursors.pop();
              plot.target.trigger('jqplotDragStop', [gridpos, datapos]);
          }
      }
  })(jQuery);