- Author:
- David Nickerson <nickerso@users.sourceforge.net>
- Date:
- 2009-07-16 02:00:03+12:00
- Desc:
- the starting point for the HH tutorial example
- Permanent Source URI:
- https://models.fieldml.org/workspace/a1/rawfile/f6a8f90307388eb4b040ee3566b84d88b59247f7/dojo-presentation/js/dojo/dojox/charting/widget/Chart2D.js
dojo.provide("dojox.charting.widget.Chart2D");
dojo.require("dijit._Widget");
dojo.require("dojox.charting.Chart2D");
dojo.require("dojox.lang.functional");
// require all actions to support references by name
dojo.require("dojox.charting.action2d.Highlight");
dojo.require("dojox.charting.action2d.Magnify");
dojo.require("dojox.charting.action2d.MoveSlice");
dojo.require("dojox.charting.action2d.Shake");
dojo.require("dojox.charting.action2d.Tooltip");
(function(){
var collectParams, collectAxisParams, collectPlotParams,
collectActionParams, collectDataParams,
notNull = function(o){ return o; },
df = dojox.lang.functional,
du = dojox.lang.utils,
dc = dojox.charting,
d = dojo;
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 = d.query("> .axis", n).map(collectAxisParams).filter(notNull),
plots = d.query("> .plot", n).map(collectPlotParams).filter(notNull),
actions = d.query("> .action", n).map(collectActionParams).filter(notNull),
series = d.query("> .series", n).map(collectDataParams).filter(notNull);
// build the chart
n.innerHTML = "";
var c = this.chart = new dc.Chart2D(n, {
margins: this.margins,
stroke: this.stroke,
fill: this.fill
});
// add collected parameters
if(this.theme){
c.setTheme(this.theme);
}
axes.forEach(function(axis){
c.addAxis(axis.name, axis.kwArgs);
});
plots.forEach(function(plot){
c.addPlot(plot.name, plot.kwArgs);
});
this.actions = actions.map(function(action){
return new action.action(c, action.plot, action.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
);
if(series.kwArgs.sort){
// sort is a complex object type and doesn't survive coercian
kw.sort = dojo.clone(series.kwArgs.sort);
}
d.mixin(kw, {
onComplete: function(data){
var values;
if("valueFn" in series.kwArgs){
var fn = series.kwArgs.valueFn;
values = d.map(data, function(x){
return fn(series.data.getValue(x, series.field, 0));
});
}else{
values = d.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();
}
});
collectParams = function(node, type, kw){
var dp = eval("(" + type + ".prototype.defaultParams)");
var x, attr;
for(x in dp){
if(x in kw){ continue; }
attr = node.getAttribute(x);
kw[x] = du.coerceType(dp[x], attr == null || typeof attr == "undefined" ? dp[x] : attr);
}
var op = eval("(" + type + ".prototype.optionalParams)");
for(x in op){
if(x in kw){ continue; }
attr = node.getAttribute(x);
if(attr != null){
kw[x] = du.coerceType(op[x], attr);
}
}
};
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(dc.axis2d[type]){
type = dojox._scopeName + ".charting.axis2d." + type;
}
var axis = eval("(" + type + ")");
if(axis){ kw.type = axis; }
}else{
type = dojox._scopeName + ".charting.axis2d.Default";
}
collectParams(node, type, kw);
return o;
};
collectPlotParams = function(node){
// var name = d.attr(node, "name"), type = d.attr(node, "type");
var name = node.getAttribute("name"), type = node.getAttribute("type");
if(!name){ return null; }
var o = {name: name, kwArgs: {}}, kw = o.kwArgs;
if(type){
if(dc.plot2d[type]){
type = dojox._scopeName + ".charting.plot2d." + type;
}
var plot = eval("(" + type + ")");
if(plot){ kw.type = plot; }
}else{
type = dojox._scopeName + ".charting.plot2d.Default";
}
collectParams(node, type, kw);
return o;
};
collectActionParams = function(node){
// var plot = d.attr(node, "plot"), type = d.attr(node, "type");
var plot = node.getAttribute("plot"), type = node.getAttribute("type");
if(!plot){ plot = "default"; }
var o = {plot: plot, kwArgs: {}}, kw = o.kwArgs;
if(type){
if(dc.action2d[type]){
type = dojox._scopeName + ".charting.action2d." + type;
}
var action = eval("(" + type + ")");
if(!action){ return null; }
o.action = action;
}else{
return null;
}
collectParams(node, type, kw);
return o;
};
collectDataParams = function(node){
var ga = d.partial(d.attr, node);
var name = ga("name");
if(!name){ return null; }
var o = { name: name, kwArgs: {} }, kw = o.kwArgs, t;
t = ga("plot");
if(t != null){ kw.plot = t; }
t = ga("marker");
if(t != null){ kw.marker = t; }
t = ga("stroke");
if(t != null){ kw.stroke = eval("(" + t + ")"); }
t = ga("fill");
if(t != null){ kw.fill = eval("(" + t + ")"); }
t = ga("legend");
if(t != null){ kw.legend = t; }
t = ga("data");
if(t != null){
o.type = "data";
o.data = dojo.map(String(t).split(','), Number);
return o;
}
t = ga("array");
if(t != null){
o.type = "data";
o.data = eval("(" + t + ")");
return o;
}
t = ga("store");
if(t != null){
o.type = "store";
o.data = eval("(" + t + ")");
t = ga("field");
o.field = t != null ? t : "value";
t = ga("query");
if(!!t){ kw.query = t; }
t = ga("queryOptions");
if(!!t){ kw.queryOptions = eval("(" + t + ")"); }
t = ga("start");
if(!!t){ kw.start = Number(t); }
t = ga("count");
if(!!t){ kw.count = Number(t); }
t = ga("sort");
if(!!t){ kw.sort = eval("("+t+")"); }
t = ga("valueFn");
if(!!t){ kw.valueFn = df.lambda(t); }
return o;
}
return null;
};
})();
