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Chart2D.js
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Chart2D.js
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if(!dojo._hasResource["dojox.charting.widget.Chart2D"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code.
dojo._hasResource["dojox.charting.widget.Chart2D"] = true;
dojo.provide("dojox.charting.widget.Chart2D");
dojo.require("dijit._Widget");
dojo.require("dojox.charting.Chart2D");
dojo.require("dojox.lang.functional");
(function(){
var collectAxisParams, collectPlotParams, collectDataParams,
notNull = function(o){ return o; },
df = dojox.lang.functional,
du = dojox.lang.utils;
dojo.declare("dojox.charting.widget.Chart2D", dijit._Widget, {
// parameters for the markup
// theme for the chart
theme: null,
// margins for the chart: {l: 10, r: 10, t: 10, b: 10}
margins: null,
// chart area
stroke: null,
fill: null,
// methods
buildRendering: function(){
var n = this.domNode = this.srcNodeRef;
// collect chart parameters
var axes = dojo.filter(dojo.query("> .axis", n).map(collectAxisParams), notNull);
var plots = dojo.filter(dojo.query("> .plot", n).map(collectPlotParams), notNull);
var series = dojo.filter(dojo.query("> .series", n).map(collectDataParams), notNull);
// build the chart
n.innerHTML = "";
var c = this.chart = new dojox.charting.Chart2D(n, {
margins: this.margins,
stroke: this.stroke,
fill: this.fill
});
// add collected parameters
if(this.theme){
c.setTheme(this.theme);
}
dojo.forEach(axes, function(axis){
c.addAxis(axis.name, axis.kwArgs);
});
dojo.forEach(plots, function(plot){
c.addPlot(plot.name, plot.kwArgs);
});
var render = df.foldl(series, function(render, series){
if(series.type == "data"){
c.addSeries(series.name, series.data, series.kwArgs);
render = true;
}else{
c.addSeries(series.name, [0], series.kwArgs);
var kw = {};
du.updateWithPattern(kw, series.kwArgs, {"query": "", "queryOptions": null, "start": 0, "count": 1, "sort": []}, true);
dojo.mixin(kw, {
onComplete: function(data){
var values;
if("valueFn" in series.kwArgs){
var fn = series.kwArgs.valueFn;
values = dojo.map(data, function(x){
return fn(series.data.getValue(x, series.field, 0));
});
}else{
values = dojo.map(data, function(x){
return series.data.getValue(x, series.field, 0);
});
}
c.addSeries(series.name, values, series.kwArgs).render();
}
});
series.data.fetch(kw);
}
return render;
}, false);
if(render){ c.render(); }
},
resize: function(box){
dojo.marginBox(this.domNode, box);
this.chart.resize();
}
});
collectAxisParams = function(node){
var name = node.getAttribute("name"), type = node.getAttribute("type");
if(!name){ return null; }
var o = {name: name, kwArgs: {}}, kw = o.kwArgs;
if(type){
if(dojox.charting.axis2d[type]){
type = "dojox.charting.axis2d." + type;
}
var axis = eval("(" + type + ")");
if(axis){ kw.type = axis; }
}else{
type = "dojox.charting.axis2d.Default";
}
var dp = eval("(" + type + ".prototype.defaultParams)");
for(var x in dp){
if(x in kw){ continue; }
var attr = node.getAttribute(x);
kw[x] = du.coerceType(dp[x], attr == null ? dp[x] : attr);
}
var op = eval("(" + type + ".prototype.optionalParams)");
for(var x in op){
if(x in kw){ continue; }
var attr = node.getAttribute(x);
if(attr != null){
kw[x] = du.coerceType(op[x], attr);
}
}
return o;
};
collectPlotParams = function(node){
var name = node.getAttribute("name"), type = node.getAttribute("type");
if(!name){ return null; }
var o = {name: name, kwArgs: {}}, kw = o.kwArgs;
if(type){
if(dojox.charting.plot2d[type]){
type = "dojox.charting.plot2d." + type;
}
var plot = eval("(" + type + ")");
if(plot){ kw.type = plot; }
}else{
type = "dojox.charting.plot2d.Default";
}
var dp = eval("(" + type + ".prototype.defaultParams)");
for(var x in dp){
if(x in kw){ continue; }
var attr = node.getAttribute(x);
kw[x] = du.coerceType(dp[x], attr == null ? dp[x] : attr);
}
var op = eval("(" + type + ".prototype.optionalParams)");
for(var x in op){
if(x in kw){ continue; }
var attr = node.getAttribute(x);
if(attr != null){
kw[x] = du.coerceType(op[x], attr);
}
}
return o;
};
collectDataParams = function(node){
var name = node.getAttribute("name");
if(!name){ return null; }
var o = {name: name, kwArgs: {}}, kw = o.kwArgs, t;
t = node.getAttribute("plot");
if(t != null){ kw.plot = t; }
t = node.getAttribute("marker");
if(t != null){ kw.marker = t; }
t = node.getAttribute("stroke");
if(t != null){ kw.stroke = eval("(" + t + ")"); }
t = node.getAttribute("fill");
if(t != null){ kw.fill = eval("(" + t + ")"); }
t = node.getAttribute("data");
if(t != null){
o.type = "data";
o.data = dojo.map(String(t).split(','), Number);
return o;
}
t = node.getAttribute("array");
if(t != null){
o.type = "data";
o.data = eval("(" + t + ")");
return o;
}
t = node.getAttribute("store");
if(t != null){
o.type = "store";
o.data = eval("(" + t + ")");
t = node.getAttribute("field");
o.field = t != null ? t : "value";
t = node.getAttribute("query");
if(t != null){ kw.query = t; }
t = node.getAttribute("queryOptions");
if(t != null){ kw.queryOptions = eval("(" + t + ")"); }
t = node.getAttribute("start");
if(t != null){ kw.start = Number(t); }
t = node.getAttribute("count");
if(t != null){ kw.count = Number(t); }
t = node.getAttribute("sort");
if(t != null){ kw.sort = eval("(" + t + ")"); }
t = node.getAttribute("valueFn");
if(t != null){ kw.valueFn = df.lambda(t); }
return o;
}
return null;
};
})();
}

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Chart2D.js (5 KB)

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