diff options
Diffstat (limited to 'public/bower_components/jquery-sparkline/src/chart-line.js')
| -rw-r--r-- | public/bower_components/jquery-sparkline/src/chart-line.js | 350 |
1 files changed, 350 insertions, 0 deletions
diff --git a/public/bower_components/jquery-sparkline/src/chart-line.js b/public/bower_components/jquery-sparkline/src/chart-line.js new file mode 100644 index 0000000..bb1c7ef --- /dev/null +++ b/public/bower_components/jquery-sparkline/src/chart-line.js @@ -0,0 +1,350 @@ + /** + * Line charts + */ + $.fn.sparkline.line = line = createClass($.fn.sparkline._base, { + type: 'line', + + init: function (el, values, options, width, height) { + line._super.init.call(this, el, values, options, width, height); + this.vertices = []; + this.regionMap = []; + this.xvalues = []; + this.yvalues = []; + this.yminmax = []; + this.hightlightSpotId = null; + this.lastShapeId = null; + this.initTarget(); + }, + + getRegion: function (el, x, y) { + var i, + regionMap = this.regionMap; // maps regions to value positions + for (i = regionMap.length; i--;) { + if (regionMap[i] !== null && x >= regionMap[i][0] && x <= regionMap[i][1]) { + return regionMap[i][2]; + } + } + return undefined; + }, + + getCurrentRegionFields: function () { + var currentRegion = this.currentRegion; + return { + isNull: this.yvalues[currentRegion] === null, + x: this.xvalues[currentRegion], + y: this.yvalues[currentRegion], + color: this.options.get('lineColor'), + fillColor: this.options.get('fillColor'), + offset: currentRegion + }; + }, + + renderHighlight: function () { + var currentRegion = this.currentRegion, + target = this.target, + vertex = this.vertices[currentRegion], + options = this.options, + spotRadius = options.get('spotRadius'), + highlightSpotColor = options.get('highlightSpotColor'), + highlightLineColor = options.get('highlightLineColor'), + highlightSpot, highlightLine; + + if (!vertex) { + return; + } + if (spotRadius && highlightSpotColor) { + highlightSpot = target.drawCircle(vertex[0], vertex[1], + spotRadius, undefined, highlightSpotColor); + this.highlightSpotId = highlightSpot.id; + target.insertAfterShape(this.lastShapeId, highlightSpot); + } + if (highlightLineColor) { + highlightLine = target.drawLine(vertex[0], this.canvasTop, vertex[0], + this.canvasTop + this.canvasHeight, highlightLineColor); + this.highlightLineId = highlightLine.id; + target.insertAfterShape(this.lastShapeId, highlightLine); + } + }, + + removeHighlight: function () { + var target = this.target; + if (this.highlightSpotId) { + target.removeShapeId(this.highlightSpotId); + this.highlightSpotId = null; + } + if (this.highlightLineId) { + target.removeShapeId(this.highlightLineId); + this.highlightLineId = null; + } + }, + + scanValues: function () { + var values = this.values, + valcount = values.length, + xvalues = this.xvalues, + yvalues = this.yvalues, + yminmax = this.yminmax, + i, val, isStr, isArray, sp; + for (i = 0; i < valcount; i++) { + val = values[i]; + isStr = typeof(values[i]) === 'string'; + isArray = typeof(values[i]) === 'object' && values[i] instanceof Array; + sp = isStr && values[i].split(':'); + if (isStr && sp.length === 2) { // x:y + xvalues.push(Number(sp[0])); + yvalues.push(Number(sp[1])); + yminmax.push(Number(sp[1])); + } else if (isArray) { + xvalues.push(val[0]); + yvalues.push(val[1]); + yminmax.push(val[1]); + } else { + xvalues.push(i); + if (values[i] === null || values[i] === 'null') { + yvalues.push(null); + } else { + yvalues.push(Number(val)); + yminmax.push(Number(val)); + } + } + } + if (this.options.get('xvalues')) { + xvalues = this.options.get('xvalues'); + } + + this.maxy = this.maxyorg = Math.max.apply(Math, yminmax); + this.miny = this.minyorg = Math.min.apply(Math, yminmax); + + this.maxx = Math.max.apply(Math, xvalues); + this.minx = Math.min.apply(Math, xvalues); + + this.xvalues = xvalues; + this.yvalues = yvalues; + this.yminmax = yminmax; + + }, + + processRangeOptions: function () { + var options = this.options, + normalRangeMin = options.get('normalRangeMin'), + normalRangeMax = options.get('normalRangeMax'); + + if (normalRangeMin !== undefined) { + if (normalRangeMin < this.miny) { + this.miny = normalRangeMin; + } + if (normalRangeMax > this.maxy) { + this.maxy = normalRangeMax; + } + } + if (options.get('chartRangeMin') !== undefined && (options.get('chartRangeClip') || options.get('chartRangeMin') < this.miny)) { + this.miny = options.get('chartRangeMin'); + } + if (options.get('chartRangeMax') !== undefined && (options.get('chartRangeClip') || options.get('chartRangeMax') > this.maxy)) { + this.maxy = options.get('chartRangeMax'); + } + if (options.get('chartRangeMinX') !== undefined && (options.get('chartRangeClipX') || options.get('chartRangeMinX') < this.minx)) { + this.minx = options.get('chartRangeMinX'); + } + if (options.get('chartRangeMaxX') !== undefined && (options.get('chartRangeClipX') || options.get('chartRangeMaxX') > this.maxx)) { + this.maxx = options.get('chartRangeMaxX'); + } + + }, + + drawNormalRange: function (canvasLeft, canvasTop, canvasHeight, canvasWidth, rangey) { + var normalRangeMin = this.options.get('normalRangeMin'), + normalRangeMax = this.options.get('normalRangeMax'), + ytop = canvasTop + Math.round(canvasHeight - (canvasHeight * ((normalRangeMax - this.miny) / rangey))), + height = Math.round((canvasHeight * (normalRangeMax - normalRangeMin)) / rangey); + this.target.drawRect(canvasLeft, ytop, canvasWidth, height, undefined, this.options.get('normalRangeColor')).append(); + }, + + render: function () { + var options = this.options, + target = this.target, + canvasWidth = this.canvasWidth, + canvasHeight = this.canvasHeight, + vertices = this.vertices, + spotRadius = options.get('spotRadius'), + regionMap = this.regionMap, + rangex, rangey, yvallast, + canvasTop, canvasLeft, + vertex, path, paths, x, y, xnext, xpos, xposnext, + last, next, yvalcount, lineShapes, fillShapes, plen, + valueSpots, hlSpotsEnabled, color, xvalues, yvalues, i; + + if (!line._super.render.call(this)) { + return; + } + + this.scanValues(); + this.processRangeOptions(); + + xvalues = this.xvalues; + yvalues = this.yvalues; + + if (!this.yminmax.length || this.yvalues.length < 2) { + // empty or all null valuess + return; + } + + canvasTop = canvasLeft = 0; + + rangex = this.maxx - this.minx === 0 ? 1 : this.maxx - this.minx; + rangey = this.maxy - this.miny === 0 ? 1 : this.maxy - this.miny; + yvallast = this.yvalues.length - 1; + + if (spotRadius && (canvasWidth < (spotRadius * 4) || canvasHeight < (spotRadius * 4))) { + spotRadius = 0; + } + if (spotRadius) { + // adjust the canvas size as required so that spots will fit + hlSpotsEnabled = options.get('highlightSpotColor') && !options.get('disableInteraction'); + if (hlSpotsEnabled || options.get('minSpotColor') || (options.get('spotColor') && yvalues[yvallast] === this.miny)) { + canvasHeight -= Math.ceil(spotRadius); + } + if (hlSpotsEnabled || options.get('maxSpotColor') || (options.get('spotColor') && yvalues[yvallast] === this.maxy)) { + canvasHeight -= Math.ceil(spotRadius); + canvasTop += Math.ceil(spotRadius); + } + if (hlSpotsEnabled || + ((options.get('minSpotColor') || options.get('maxSpotColor')) && (yvalues[0] === this.miny || yvalues[0] === this.maxy))) { + canvasLeft += Math.ceil(spotRadius); + canvasWidth -= Math.ceil(spotRadius); + } + if (hlSpotsEnabled || options.get('spotColor') || + (options.get('minSpotColor') || options.get('maxSpotColor') && + (yvalues[yvallast] === this.miny || yvalues[yvallast] === this.maxy))) { + canvasWidth -= Math.ceil(spotRadius); + } + } + + + canvasHeight--; + + if (options.get('normalRangeMin') !== undefined && !options.get('drawNormalOnTop')) { + this.drawNormalRange(canvasLeft, canvasTop, canvasHeight, canvasWidth, rangey); + } + + path = []; + paths = [path]; + last = next = null; + yvalcount = yvalues.length; + for (i = 0; i < yvalcount; i++) { + x = xvalues[i]; + xnext = xvalues[i + 1]; + y = yvalues[i]; + xpos = canvasLeft + Math.round((x - this.minx) * (canvasWidth / rangex)); + xposnext = i < yvalcount - 1 ? canvasLeft + Math.round((xnext - this.minx) * (canvasWidth / rangex)) : canvasWidth; + next = xpos + ((xposnext - xpos) / 2); + regionMap[i] = [last || 0, next, i]; + last = next; + if (y === null) { + if (i) { + if (yvalues[i - 1] !== null) { + path = []; + paths.push(path); + } + vertices.push(null); + } + } else { + if (y < this.miny) { + y = this.miny; + } + if (y > this.maxy) { + y = this.maxy; + } + if (!path.length) { + // previous value was null + path.push([xpos, canvasTop + canvasHeight]); + } + vertex = [xpos, canvasTop + Math.round(canvasHeight - (canvasHeight * ((y - this.miny) / rangey)))]; + path.push(vertex); + vertices.push(vertex); + } + } + + lineShapes = []; + fillShapes = []; + plen = paths.length; + for (i = 0; i < plen; i++) { + path = paths[i]; + if (path.length) { + if (options.get('fillColor')) { + path.push([path[path.length - 1][0], (canvasTop + canvasHeight)]); + fillShapes.push(path.slice(0)); + path.pop(); + } + // if there's only a single point in this path, then we want to display it + // as a vertical line which means we keep path[0] as is + if (path.length > 2) { + // else we want the first value + path[0] = [path[0][0], path[1][1]]; + } + lineShapes.push(path); + } + } + + // draw the fill first, then optionally the normal range, then the line on top of that + plen = fillShapes.length; + for (i = 0; i < plen; i++) { + target.drawShape(fillShapes[i], + options.get('fillColor'), options.get('fillColor')).append(); + } + + if (options.get('normalRangeMin') !== undefined && options.get('drawNormalOnTop')) { + this.drawNormalRange(canvasLeft, canvasTop, canvasHeight, canvasWidth, rangey); + } + + plen = lineShapes.length; + for (i = 0; i < plen; i++) { + target.drawShape(lineShapes[i], options.get('lineColor'), undefined, + options.get('lineWidth')).append(); + } + + if (spotRadius && options.get('valueSpots')) { + valueSpots = options.get('valueSpots'); + if (valueSpots.get === undefined) { + valueSpots = new RangeMap(valueSpots); + } + for (i = 0; i < yvalcount; i++) { + color = valueSpots.get(yvalues[i]); + if (color) { + target.drawCircle(canvasLeft + Math.round((xvalues[i] - this.minx) * (canvasWidth / rangex)), + canvasTop + Math.round(canvasHeight - (canvasHeight * ((yvalues[i] - this.miny) / rangey))), + spotRadius, undefined, + color).append(); + } + } + + } + if (spotRadius && options.get('spotColor') && yvalues[yvallast] !== null) { + target.drawCircle(canvasLeft + Math.round((xvalues[xvalues.length - 1] - this.minx) * (canvasWidth / rangex)), + canvasTop + Math.round(canvasHeight - (canvasHeight * ((yvalues[yvallast] - this.miny) / rangey))), + spotRadius, undefined, + options.get('spotColor')).append(); + } + if (this.maxy !== this.minyorg) { + if (spotRadius && options.get('minSpotColor')) { + x = xvalues[$.inArray(this.minyorg, yvalues)]; + target.drawCircle(canvasLeft + Math.round((x - this.minx) * (canvasWidth / rangex)), + canvasTop + Math.round(canvasHeight - (canvasHeight * ((this.minyorg - this.miny) / rangey))), + spotRadius, undefined, + options.get('minSpotColor')).append(); + } + if (spotRadius && options.get('maxSpotColor')) { + x = xvalues[$.inArray(this.maxyorg, yvalues)]; + target.drawCircle(canvasLeft + Math.round((x - this.minx) * (canvasWidth / rangex)), + canvasTop + Math.round(canvasHeight - (canvasHeight * ((this.maxyorg - this.miny) / rangey))), + spotRadius, undefined, + options.get('maxSpotColor')).append(); + } + } + + this.lastShapeId = target.getLastShapeId(); + this.canvasTop = canvasTop; + target.render(); + } + }); + |