| /* |
| Copyright (c) 2004-2006, The Dojo Foundation |
| All Rights Reserved. |
| |
| Licensed under the Academic Free License version 2.1 or above OR the |
| modified BSD license. For more information on Dojo licensing, see: |
| |
| http://dojotoolkit.org/community/licensing.shtml |
| */ |
| |
| dojo.provide("dojo.charting.svg.Axis"); |
| dojo.require("dojo.lang.common"); |
| |
| if(dojo.render.svg.capable){ |
| dojo.extend(dojo.charting.Axis, { |
| renderLines: function( |
| /* dojo.charting.PlotArea */plotArea, |
| /* dojo.charting.Plot */plot, |
| /* string */plane |
| ){ |
| // summary |
| // Renders any reference lines for this axis. |
| if(this.nodes.lines){ |
| while(this.nodes.lines.childNodes.length > 0){ |
| this.nodes.lines.removeChild(this.nodes.lines.childNodes[0]); |
| } |
| if(this.nodes.lines.parentNode){ |
| this.nodes.lines.parentNode.removeChild(this.nodes.lines); |
| this.nodes.lines = null; |
| } |
| } |
| |
| var area = plotArea.getArea(); |
| var g = this.nodes.lines = document.createElementNS(dojo.svg.xmlns.svg, "g"); |
| g.setAttribute("id", this.getId()+"-lines"); |
| for(var i=0; i<this._labels.length; i++){ |
| if (this._labels[i].value == this.origin){ continue; } |
| |
| var v = this.getCoord(this._labels[i].value, plotArea, plot); |
| var l=document.createElementNS(dojo.svg.xmlns.svg, "line"); |
| l.setAttribute("style","stroke:#999;stroke-width:1px;stroke-dasharray:1,4;"); |
| if(plane == "x"){ |
| l.setAttribute("y1",area.top); |
| l.setAttribute("y2",area.bottom); |
| l.setAttribute("x1",v); |
| l.setAttribute("x2",v); |
| } |
| else if (plane == "y"){ |
| l.setAttribute("y1",v); |
| l.setAttribute("y2",v); |
| l.setAttribute("x1",area.left); |
| l.setAttribute("x2",area.right); |
| } |
| g.appendChild(l); |
| } |
| return g; // SVGGElement |
| }, |
| renderTicks: function( |
| /* dojo.charting.PlotArea */plotArea, |
| /* dojo.charting.Plot */plot, |
| /* string */plane, |
| /* float */coord |
| ){ |
| // summary |
| // Renders any tick lines for this axis. |
| if(this.nodes.ticks){ |
| while(this.nodes.ticks.childNodes.length > 0){ |
| this.nodes.ticks.removeChild(this.nodes.ticks.childNodes[0]); |
| } |
| if(this.nodes.ticks.parentNode){ |
| this.nodes.ticks.parentNode.removeChild(this.nodes.ticks); |
| this.nodes.ticks = null; |
| } |
| } |
| |
| var g = this.nodes.ticks = document.createElementNS(dojo.svg.xmlns.svg, "g"); |
| g.setAttribute("id", this.getId()+"-ticks"); |
| for(var i=0; i<this._labels.length; i++){ |
| var v = this.getCoord(this._labels[i].value, plotArea, plot); |
| |
| var l=document.createElementNS(dojo.svg.xmlns.svg, "line"); |
| l.setAttribute("style","stroke:#000;stroke-width:1pt;"); |
| if(plane == "x"){ |
| l.setAttribute("y1",coord); |
| l.setAttribute("y2",coord+3); |
| l.setAttribute("x1",v); |
| l.setAttribute("x2",v); |
| } |
| else if (plane == "y"){ |
| l.setAttribute("y1",v); |
| l.setAttribute("y2",v); |
| l.setAttribute("x1",coord-2); |
| l.setAttribute("x2",coord+2); |
| } |
| g.appendChild(l); |
| } |
| return g; // SVGGElement |
| }, |
| renderLabels: function( |
| /* dojo.charting.PlotArea */plotArea, |
| /* dojo.charting.Plot */plot, |
| /* string */plane, |
| /* float */coord, |
| /* int */textSize, |
| /* string */anchor |
| ){ |
| // summary |
| // Render all labels for this axis. |
| function createLabel(label, x, y, textSize, anchor){ |
| var text = document.createElementNS(dojo.svg.xmlns.svg, "text"); |
| text.setAttribute("x", x); |
| text.setAttribute("y", (plane=="x"?y:y+2)); |
| text.setAttribute("style", "text-anchor:"+anchor+";font-family:sans-serif;font-size:"+textSize+"px;fill:#000;"); |
| text.appendChild(document.createTextNode(label)); |
| return text; |
| }; |
| |
| // wipe if needed |
| if(this.nodes.labels){ |
| while(this.nodes.labels.childNodes.length > 0){ |
| this.nodes.labels.removeChild(this.nodes.labels.childNodes[0]); |
| } |
| if(this.nodes.labels.parentNode){ |
| this.nodes.labels.parentNode.removeChild(this.nodes.labels); |
| this.nodes.labels = null; |
| } |
| } |
| var g = this.nodes.labels = document.createElementNS(dojo.svg.xmlns.svg, "g"); |
| g.setAttribute("id", this.getId()+"-labels"); |
| |
| for(var i=0; i<this._labels.length; i++){ |
| var v = this.getCoord(this._labels[i].value, plotArea, plot); |
| if(plane == "x"){ |
| g.appendChild(createLabel(this._labels[i].label, v, coord, textSize, anchor)); |
| } |
| else if (plane == "y"){ |
| g.appendChild(createLabel(this._labels[i].label, coord, v, textSize, anchor)); |
| } |
| } |
| return g; // SVGGelement |
| }, |
| render: function( |
| /* dojo.charting.PlotArea */plotArea, |
| /* dojo.charting.Plot */plot, |
| /* dojo.charting.Axis */drawAgainst, |
| /* string */plane |
| ){ |
| // summary |
| // Renders this axis to the given plot. |
| |
| // get the origin plot point. |
| var area = plotArea.getArea(); |
| var stroke = 1; |
| var style = "stroke:#000;stroke-width:"+stroke+"px;"; |
| var textSize=10; |
| var coord = drawAgainst.getCoord(this.origin, plotArea, plot); |
| |
| // draw the axis. |
| this.nodes.main = document.createElementNS(dojo.svg.xmlns.svg, "g"); |
| var g = this.nodes.main; |
| g.setAttribute("id", this.getId()); // need a handle if we have to kill parts of the axis def. |
| var line = this.nodes.axis = document.createElementNS(dojo.svg.xmlns.svg, "line"); |
| if(plane == "x"){ |
| line.setAttribute("y1", coord); |
| line.setAttribute("y2", coord); |
| line.setAttribute("x1", area.left-stroke); |
| line.setAttribute("x2", area.right+stroke); |
| line.setAttribute("style", style); |
| |
| // set up the labels |
| var y = coord+textSize+2; |
| if(this.showLines){ |
| g.appendChild(this.renderLines(plotArea, plot, plane, y)); |
| } |
| if(this.showTicks){ |
| g.appendChild(this.renderTicks(plotArea, plot, plane, coord)); |
| } |
| if(this.showLabels){ |
| g.appendChild(this.renderLabels(plotArea, plot, plane, y, textSize, "middle")); |
| } |
| if(this.showLabel && this.label){ |
| var x = plotArea.size.width/2; |
| var text = document.createElementNS(dojo.svg.xmlns.svg, "text"); |
| text.setAttribute("x", x); |
| text.setAttribute("y", (coord + (textSize*2) + (textSize/2))); |
| text.setAttribute("style", "text-anchor:middle;font-family:sans-serif;font-weight:bold;font-size:"+(textSize+2)+"px;fill:#000;"); |
| text.appendChild(document.createTextNode(this.label)); |
| g.appendChild(text); |
| } |
| } else { |
| line.setAttribute("x1", coord); |
| line.setAttribute("x2", coord); |
| line.setAttribute("y1", area.top); |
| line.setAttribute("y2", area.bottom); |
| line.setAttribute("style", style); |
| |
| // set up the labels |
| var isMax = this.origin == drawAgainst.range.upper; |
| var x = coord + (isMax?4:-4); |
| var anchor = isMax?"start":"end"; |
| if(this.showLines){ |
| g.appendChild(this.renderLines(plotArea, plot, plane, x)); |
| } |
| if(this.showTicks){ |
| g.appendChild(this.renderTicks(plotArea, plot, plane, coord)); |
| } |
| if(this.showLabels){ |
| g.appendChild(this.renderLabels(plotArea, plot, plane, x, textSize, anchor)); |
| } |
| if(this.showLabel && this.label){ |
| var x = isMax?(coord+(textSize*2)+(textSize/2)):(coord-(textSize*4)); |
| var y = plotArea.size.height / 2; |
| var text = document.createElementNS(dojo.svg.xmlns.svg, "text"); |
| text.setAttribute("x", x); |
| text.setAttribute("y", y); |
| text.setAttribute("transform", "rotate(90, " + x + ", " + y + ")"); |
| text.setAttribute("style", "text-anchor:middle;font-family:sans-serif;font-weight:bold;font-size:"+(textSize+2)+"px;fill:#000;"); |
| text.appendChild(document.createTextNode(this.label)); |
| g.appendChild(text); |
| } |
| } |
| g.appendChild(line); |
| return g; // SVGGElement |
| } |
| }); |
| } |