/**
* Bullet charts
*/
$.fn.sparkline.bullet = bullet = createClass($.fn.sparkline._base, {
type: 'bullet',
init: function (el, values, options, width, height) {
var min, max, vals;
bullet._super.init.call(this, el, values, options, width, height);
// values: target, performance, range1, range2, range3
this.values = values = normalizeValues(values);
// target or performance could be null
vals = values.slice();
vals[0] = vals[0] === null ? vals[2] : vals[0];
vals[1] = values[1] === null ? vals[2] : vals[1];
min = Math.min.apply(Math, values);
max = Math.max.apply(Math, values);
if (options.get('base') === undefined) {
min = min < 0 ? min : 0;
} else {
min = options.get('base');
}
this.min = min;
this.max = max;
this.range = max - min;
this.shapes = {};
this.valueShapes = {};
this.regiondata = {};
this.width = width = options.get('width') === 'auto' ? '4.0em' : width;
this.target = this.$el.simpledraw(width, height, options.get('composite'));
if (!values.length) {
this.disabled = true;
}
this.initTarget();
},
getRegion: function (el, x, y) {
var shapeid = this.target.getShapeAt(el, x, y);
return (shapeid !== undefined && this.shapes[shapeid] !== undefined) ? this.shapes[shapeid] : undefined;
},
getCurrentRegionFields: function () {
var currentRegion = this.currentRegion;
return {
fieldkey: currentRegion.substr(0, 1),
value: this.values[currentRegion.substr(1)],
region: currentRegion
};
},
changeHighlight: function (highlight) {
var currentRegion = this.currentRegion,
shapeid = this.valueShapes[currentRegion],
shape;
delete this.shapes[shapeid];
switch (currentRegion.substr(0, 1)) {
case 'r':
shape = this.renderRange(currentRegion.substr(1), highlight);
break;
case 'p':
shape = this.renderPerformance(highlight);
break;
case 't':
shape = this.renderTarget(highlight);
break;
}
this.valueShapes[currentRegion] = shape.id;
this.shapes[shape.id] = currentRegion;
this.target.replaceWithShape(shapeid, shape);
},
renderRange: function (rn, highlight) {
var rangeval = this.values[rn],
rangewidth = Math.round(this.canvasWidth * ((rangeval - this.min) / this.range)),
color = this.options.get('rangeColors')[rn - 2];
if (highlight) {
color = this.calcHighlightColor(color, this.options);
}
return this.target.drawRect(0, 0, rangewidth - 1, this.canvasHeight - 1, color, color);
},
renderPerformance: function (highlight) {
var perfval = this.values[1],
perfwidth = Math.round(this.canvasWidth * ((perfval - this.min) / this.range)),
color = this.options.get('performanceColor');
if (highlight) {
color = this.calcHighlightColor(color, this.options);
}
return this.target.drawRect(0, Math.round(this.canvasHeight * 0.3), perfwidth - 1,
Math.round(this.canvasHeight * 0.4) - 1, color, color);
},
renderTarget: function (highlight) {
var targetval = this.values[0],
x = Math.round(this.canvasWidth * ((targetval - this.min) / this.range) - (this.options.get('targetWidth') / 2)),
targettop = Math.round(this.canvasHeight * 0.10),
targetheight = this.canvasHeight - (targettop * 2),
color = this.options.get('targetColor');
if (highlight) {
color = this.calcHighlightColor(color, this.options);
}
return this.target.drawRect(x, targettop, this.options.get('targetWidth') - 1, targetheight - 1, color, color);
},
render: function () {
var vlen = this.values.length,
target = this.target,
i, shape;
if (!bullet._super.render.call(this)) {
return;
}
for (i = 2; i < vlen; i++) {
shape = this.renderRange(i).append();
this.shapes[shape.id] = 'r' + i;
this.valueShapes['r' + i] = shape.id;
}
if (this.values[1] !== null) {
shape = this.renderPerformance().append();
this.shapes[shape.id] = 'p1';
this.valueShapes.p1 = shape.id;
}
if (this.values[0] !== null) {
shape = this.renderTarget().append();
this.shapes[shape.id] = 't0';
this.valueShapes.t0 = shape.id;
}
target.render();
}
});
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