diff options
Diffstat (limited to 'public/bower_components/jquery-sparkline/src/chart-pie.js')
-rw-r--r-- | public/bower_components/jquery-sparkline/src/chart-pie.js | 112 |
1 files changed, 112 insertions, 0 deletions
diff --git a/public/bower_components/jquery-sparkline/src/chart-pie.js b/public/bower_components/jquery-sparkline/src/chart-pie.js new file mode 100644 index 0000000..c04beca --- /dev/null +++ b/public/bower_components/jquery-sparkline/src/chart-pie.js @@ -0,0 +1,112 @@ + /** + * Pie charts + */ + $.fn.sparkline.pie = pie = createClass($.fn.sparkline._base, { + type: 'pie', + + init: function (el, values, options, width, height) { + var total = 0, i; + + pie._super.init.call(this, el, values, options, width, height); + + this.shapes = {}; // map shape ids to value offsets + this.valueShapes = {}; // maps value offsets to shape ids + this.values = values = $.map(values, Number); + + if (options.get('width') === 'auto') { + this.width = this.height; + } + + if (values.length > 0) { + for (i = values.length; i--;) { + total += values[i]; + } + } + this.total = total; + this.initTarget(); + this.radius = Math.floor(Math.min(this.canvasWidth, this.canvasHeight) / 2); + }, + + 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 { + isNull: this.values[currentRegion] === undefined, + value: this.values[currentRegion], + percent: this.values[currentRegion] / this.total * 100, + color: this.options.get('sliceColors')[currentRegion % this.options.get('sliceColors').length], + offset: currentRegion + }; + }, + + changeHighlight: function (highlight) { + var currentRegion = this.currentRegion, + newslice = this.renderSlice(currentRegion, highlight), + shapeid = this.valueShapes[currentRegion]; + delete this.shapes[shapeid]; + this.target.replaceWithShape(shapeid, newslice); + this.valueShapes[currentRegion] = newslice.id; + this.shapes[newslice.id] = currentRegion; + }, + + renderSlice: function (valuenum, highlight) { + var target = this.target, + options = this.options, + radius = this.radius, + borderWidth = options.get('borderWidth'), + offset = options.get('offset'), + circle = 2 * Math.PI, + values = this.values, + total = this.total, + next = offset ? (2*Math.PI)*(offset/360) : 0, + start, end, i, vlen, color; + + vlen = values.length; + for (i = 0; i < vlen; i++) { + start = next; + end = next; + if (total > 0) { // avoid divide by zero + end = next + (circle * (values[i] / total)); + } + if (valuenum === i) { + color = options.get('sliceColors')[i % options.get('sliceColors').length]; + if (highlight) { + color = this.calcHighlightColor(color, options); + } + + return target.drawPieSlice(radius, radius, radius - borderWidth, start, end, undefined, color); + } + next = end; + } + }, + + render: function () { + var target = this.target, + values = this.values, + options = this.options, + radius = this.radius, + borderWidth = options.get('borderWidth'), + shape, i; + + if (!pie._super.render.call(this)) { + return; + } + if (borderWidth) { + target.drawCircle(radius, radius, Math.floor(radius - (borderWidth / 2)), + options.get('borderColor'), undefined, borderWidth).append(); + } + for (i = values.length; i--;) { + if (values[i]) { // don't render zero values + shape = this.renderSlice(i).append(); + this.valueShapes[i] = shape.id; // store just the shapeid + this.shapes[shape.id] = i; + } + } + target.render(); + } + }); + |