cacert-testmgr/external/ZendFramework-1.9.5/externals/dojo/dojox/charting/plot2d/Bars.js
Markus Warg 8398c9048d initially import ZendFramework-1.9.5 into repository
code was modified slightly, so the code differs from the original downloadable 1.9.5 version
2010-03-31 10:12:32 +02:00

109 lines
3.4 KiB
JavaScript

dojo.provide("dojox.charting.plot2d.Bars");
dojo.require("dojox.charting.plot2d.common");
dojo.require("dojox.charting.plot2d.Base");
dojo.require("dojox.lang.utils");
dojo.require("dojox.lang.functional");
dojo.require("dojox.lang.functional.reversed");
(function(){
var df = dojox.lang.functional, du = dojox.lang.utils,
dc = dojox.charting.plot2d.common,
purgeGroup = df.lambda("item.purgeGroup()");
dojo.declare("dojox.charting.plot2d.Bars", dojox.charting.plot2d.Base, {
defaultParams: {
hAxis: "x", // use a horizontal axis named "x"
vAxis: "y", // use a vertical axis named "y"
gap: 0, // gap between columns in pixels
shadows: null // draw shadows
},
optionalParams: {
minBarSize: 1, // minimal bar size in pixels
maxBarSize: 1 // maximal bar size in pixels
},
constructor: function(chart, kwArgs){
this.opt = dojo.clone(this.defaultParams);
du.updateWithObject(this.opt, kwArgs);
du.updateWithPattern(this.opt, kwArgs, this.optionalParams);
this.series = [];
this.hAxis = this.opt.hAxis;
this.vAxis = this.opt.vAxis;
},
calculateAxes: function(dim){
var stats = dc.collectSimpleStats(this.series), t;
stats.hmin -= 0.5;
stats.hmax += 0.5;
t = stats.hmin, stats.hmin = stats.vmin, stats.vmin = t;
t = stats.hmax, stats.hmax = stats.vmax, stats.vmax = t;
this._calc(dim, stats);
return this;
},
render: function(dim, offsets){
this.dirty = this.isDirty();
if(this.dirty){
dojo.forEach(this.series, purgeGroup);
this.cleanGroup();
var s = this.group;
df.forEachRev(this.series, function(item){ item.cleanGroup(s); });
}
var t = this.chart.theme, color, stroke, fill, f, gap, height,
ht = this._hScaler.scaler.getTransformerFromModel(this._hScaler),
vt = this._vScaler.scaler.getTransformerFromModel(this._vScaler),
baseline = Math.max(0, this._hScaler.bounds.lower),
baselineWidth = ht(baseline),
events = this.events();
f = dc.calculateBarSize(this._vScaler.bounds.scale, this.opt);
gap = f.gap;
height = f.size;
this.resetEvents();
for(var i = this.series.length - 1; i >= 0; --i){
var run = this.series[i];
if(!this.dirty && !run.dirty){ continue; }
run.cleanGroup();
var s = run.group;
if(!run.fill || !run.stroke){
// need autogenerated color
color = run.dyn.color = new dojo.Color(t.next("color"));
}
stroke = run.stroke ? run.stroke : dc.augmentStroke(t.series.stroke, color);
fill = run.fill ? run.fill : dc.augmentFill(t.series.fill, color);
for(var j = 0; j < run.data.length; ++j){
var v = run.data[j],
hv = ht(v),
width = hv - baselineWidth,
w = Math.abs(width);
if(w >= 1 && height >= 1){
var shape = s.createRect({
x: offsets.l + (v < baseline ? hv : baselineWidth),
y: dim.height - offsets.b - vt(j + 1.5) + gap,
width: w, height: height
}).setFill(fill).setStroke(stroke);
run.dyn.fill = shape.getFill();
run.dyn.stroke = shape.getStroke();
if(events){
var o = {
element: "bar",
index: j,
run: run,
plot: this,
hAxis: this.hAxis || null,
vAxis: this.vAxis || null,
shape: shape,
x: v,
y: j + 1.5
};
this._connectEvents(shape, o);
}
}
}
run.dirty = false;
}
this.dirty = false;
return this;
}
});
})();