126 lines
3.2 KiB
JavaScript
126 lines
3.2 KiB
JavaScript
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dojo.provide("dojox.charting.plot2d.Grid");
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dojo.require("dojox.charting.Element");
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dojo.require("dojox.charting.plot2d.common");
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dojo.require("dojox.lang.functional");
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(function(){
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var du = dojox.lang.utils;
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dojo.declare("dojox.charting.plot2d.Grid", dojox.charting.Element, {
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defaultParams: {
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hAxis: "x", // use a horizontal axis named "x"
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vAxis: "y", // use a vertical axis named "y"
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hMajorLines: true, // draw horizontal major lines
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hMinorLines: false, // draw horizontal minor lines
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vMajorLines: true, // draw vertical major lines
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vMinorLines: false, // draw vertical minor lines
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hStripes: "none", // TBD
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vStripes: "none" // TBD
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},
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optionalParams: {}, // no optional parameters
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constructor: function(chart, kwArgs){
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this.opt = dojo.clone(this.defaultParams);
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du.updateWithObject(this.opt, kwArgs);
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this.hAxis = this.opt.hAxis;
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this.vAxis = this.opt.vAxis;
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this.dirty = true;
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},
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clear: function(){
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this._hAxis = null;
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this._vAxis = null;
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this.dirty = true;
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return this;
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},
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setAxis: function(axis){
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if(axis){
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this[axis.vertical ? "_vAxis" : "_hAxis"] = axis;
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}
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return this;
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},
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addSeries: function(run){
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// nothing
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return this;
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},
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calculateAxes: function(dim){
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// nothing
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return this;
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},
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isDirty: function(){
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return this.dirty || this._hAxis && this._hAxis.dirty || this._vAxis && this._vAxis.dirty;
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},
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getRequiredColors: function(){
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return 0;
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},
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render: function(dim, offsets){
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this.dirty = this.isDirty();
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if(!this.dirty){ return this; }
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this.cleanGroup();
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var s = this.group, ta = this.chart.theme.axis;
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// draw horizontal stripes and lines
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try{
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var vScaler = this._vAxis.getScaler(),
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vt = vScaler.scaler.getTransformerFromModel(vScaler),
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ticks = this._vAxis.getTicks();
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if(this.opt.hMinorLines){
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dojo.forEach(ticks.minor, function(tick){
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var y = dim.height - offsets.b - vt(tick.value);
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s.createLine({
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x1: offsets.l,
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y1: y,
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x2: dim.width - offsets.r,
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y2: y
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}).setStroke(ta.minorTick);
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});
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}
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if(this.opt.hMajorLines){
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dojo.forEach(ticks.major, function(tick){
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var y = dim.height - offsets.b - vt(tick.value);
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s.createLine({
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x1: offsets.l,
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y1: y,
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x2: dim.width - offsets.r,
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y2: y
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}).setStroke(ta.majorTick);
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});
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}
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}catch(e){
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// squelch
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}
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// draw vertical stripes and lines
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try{
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var hScaler = this._hAxis.getScaler(),
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ht = hScaler.scaler.getTransformerFromModel(hScaler),
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ticks = this._hAxis.getTicks();
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if(ticks && this.opt.vMinorLines){
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dojo.forEach(ticks.minor, function(tick){
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var x = offsets.l + ht(tick.value);
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s.createLine({
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x1: x,
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y1: offsets.t,
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x2: x,
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y2: dim.height - offsets.b
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}).setStroke(ta.minorTick);
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});
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}
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if(ticks && this.opt.vMajorLines){
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dojo.forEach(ticks.major, function(tick){
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var x = offsets.l + ht(tick.value);
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s.createLine({
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x1: x,
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y1: offsets.t,
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x2: x,
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y2: dim.height - offsets.b
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}).setStroke(ta.majorTick);
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});
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}
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}catch(e){
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// squelch
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}
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this.dirty = false;
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return this;
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}
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});
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})();
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