scripts/jquery/jqplot/plugins/jqplot.dragable.min.js

   1 /**
   2  * Copyright (c) 2009 - 2010 Chris Leonello
   3  * jqPlot is currently available for use in all personal or commercial projects
   4  * under both the MIT (http://www.opensource.org/licenses/mit-license.php) and GPL
   5  * version 2.0 (http://www.gnu.org/licenses/gpl-2.0.html) licenses. This means that you can
   6  * choose the license that best suits your project and use it accordingly.
   7  *
   8  * Although not required, the author would appreciate an email letting him
   9  * know of any substantial use of jqPlot.  You can reach the author at:
  10  * chris at jqplot  or see http://www.jqplot.com/info.php .
  11  *
  12  * If you are feeling kind and generous, consider supporting the project by
  13  * making a donation at: http://www.jqplot.com/donate.php .
  14  *
  15  * jqPlot includes date instance methods and printf/sprintf functions by other authors:
  16  *
  17  * Date instance methods contained in jqplot.dateMethods.js:
  18  *
  19  *     author Ken Snyder (ken d snyder at gmail dot com)
  20  *     date 2008-09-10
  21  *     version 2.0.2 (http://kendsnyder.com/sandbox/date/)
  22  *     license Creative Commons Attribution License 3.0 (http://creativecommons.org/licenses/by/3.0/)
  23  *
  24  * JavaScript printf/sprintf functions contained in jqplot.sprintf.js:
  25  *
  26  *     version 2007.04.27
  27  *     author Ash Searle
  28  *     http://hexmen.com/blog/2007/03/printf-sprintf/
  29  *     http://hexmen.com/js/sprintf.js
  30  *     The author (Ash Searle) has placed this code in the public domain:
  31  *     "This code is unrestricted: you are free to use it however you like."
  32  *
  33  */
  34 (function(d){d.jqplot.Dragable=function(g){this.markerRenderer=new d.jqplot.MarkerRenderer({shadow:false});this.shapeRenderer=new d.jqplot.ShapeRenderer();this.isDragging=false;this.isOver=false;this._ctx;this._elem;this._point;this._gridData;this.color;this.constrainTo="none";d.extend(true,this,g)};function b(){d.jqplot.GenericCanvas.call(this);this.isDragging=false;this.isOver=false;this._neighbor;this._cursors=[]}b.prototype=new d.jqplot.GenericCanvas();b.prototype.constructor=b;d.jqplot.Dragable.parseOptions=function(i,h){var g=h||{};this.plugins.dragable=new d.jqplot.Dragable(g.dragable);this.isDragable=d.jqplot.config.enablePlugins};d.jqplot.Dragable.postPlotDraw=function(){this.plugins.dragable={previousCursor:"auto",isOver:false};this.plugins.dragable.dragCanvas=new b();this.eventCanvas._elem.before(this.plugins.dragable.dragCanvas.createElement(this._gridPadding,"jqplot-dragable-canvas",this._plotDimensions));var g=this.plugins.dragable.dragCanvas.setContext()};d.jqplot.preParseSeriesOptionsHooks.push(d.jqplot.Dragable.parseOptions);d.jqplot.postDrawHooks.push(d.jqplot.Dragable.postPlotDraw);d.jqplot.eventListenerHooks.push(["jqplotMouseMove",e]);d.jqplot.eventListenerHooks.push(["jqplotMouseDown",c]);d.jqplot.eventListenerHooks.push(["jqplotMouseUp",a]);function f(n,p){var q=n.series[p.seriesIndex];var m=q.plugins.dragable;var h=q.markerRenderer;var i=m.markerRenderer;i.style=h.style;i.lineWidth=h.lineWidth+2.5;i.size=h.size+5;if(!m.color){var l=d.jqplot.getColorComponents(h.color);var o=[l[0],l[1],l[2]];var k=(l[3]>=0.6)?l[3]*0.6:l[3]*(2-l[3]);m.color="rgba("+o[0]+","+o[1]+","+o[2]+","+k+")"}i.color=m.color;i.init();var g=(p.pointIndex>0)?p.pointIndex-1:0;var j=p.pointIndex+2;m._gridData=q.gridData.slice(g,j)}function e(o,l,h,t,m){if(m.plugins.dragable.dragCanvas.isDragging){var u=m.plugins.dragable.dragCanvas;var i=u._neighbor;var w=m.series[i.seriesIndex];var k=w.plugins.dragable;var r=w.gridData;var p=(k.constrainTo=="y")?i.gridData[0]:l.x;var n=(k.constrainTo=="x")?i.gridData[1]:l.y;var g=w._xaxis.series_p2u(p);var q=w._yaxis.series_p2u(n);var v=u._ctx;v.clearRect(0,0,v.canvas.width,v.canvas.height);if(i.pointIndex>0){k._gridData[1]=[p,n]}else{k._gridData[0]=[p,n]}m.series[i.seriesIndex].draw(u._ctx,{gridData:k._gridData,shadow:false,preventJqPlotSeriesDrawTrigger:true,color:k.color,markerOptions:{color:k.color,shadow:false},trendline:{show:false}});m.target.trigger("jqplotSeriesPointChange",[i.seriesIndex,i.pointIndex,[g,q],[p,n]])}else{if(t!=null){var j=m.series[t.seriesIndex];if(j.isDragable){var u=m.plugins.dragable.dragCanvas;if(!u.isOver){u._cursors.push(o.target.style.cursor);o.target.style.cursor="pointer"}u.isOver=true}}else{if(t==null){var u=m.plugins.dragable.dragCanvas;if(u.isOver){o.target.style.cursor=u._cursors.pop();u.isOver=false}}}}}function c(k,i,g,l,j){var m=j.plugins.dragable.dragCanvas;m._cursors.push(k.target.style.cursor);if(l!=null){var o=j.series[l.seriesIndex];var h=o.plugins.dragable;if(o.isDragable&&!m.isDragging){m._neighbor=l;m.isDragging=true;f(j,l);h.markerRenderer.draw(o.gridData[l.pointIndex][0],o.gridData[l.pointIndex][1],m._ctx);k.target.style.cursor="move";j.target.trigger("jqlotDragStart",[l.seriesIndex,l.pointIndex,i,g])}}else{var n=m._ctx;n.clearRect(0,0,n.canvas.width,n.canvas.height);m.isDragging=false}}function a(m,j,g,o,k){if(k.plugins.dragable.dragCanvas.isDragging){var p=k.plugins.dragable.dragCanvas;var q=p._ctx;q.clearRect(0,0,q.canvas.width,q.canvas.height);p.isDragging=false;var h=p._neighbor;var r=k.series[h.seriesIndex];var i=r.plugins.dragable;var n=(i.constrainTo=="y")?h.data[0]:g[r.xaxis];var l=(i.constrainTo=="x")?h.data[1]:g[r.yaxis];r.data[h.pointIndex][0]=n;r.data[h.pointIndex][1]=l;k.drawSeries({preventJqPlotSeriesDrawTrigger:true},h.seriesIndex);p._neighbor=null;m.target.style.cursor=p._cursors.pop();k.target.trigger("jqlotDragStop",[j,g])}}})(jQuery);