/** * @class Ext.sparkline.Bar * * Plots a bar chart of the values in the passed {@link #values} array. * * See {@link Ext.sparkline.Base the base class} for a simple example. */Ext.define('Ext.sparkline.Bar', { extend: 'Ext.sparkline.BarBase', requires: [ 'Ext.sparkline.RangeMap' ], alias: 'widget.sparklinebar', config: { /** * @cfg {String} [barColor=#3366cc] The bar color for positive values. */ barColor: '#3366cc', /** * @cfg {String} [negBarColor=#f44] The bar color for negative values. */ negBarColor: '#f44', /** * @cfg {String[]} [stackedBarColor] An array of colours to use for stacked bar charts. * The first series will use the first value in the array, the second series will use the second, etc. */ stackedBarColor: ['#3366cc', '#dc3912', '#ff9900', '#109618', '#66aa00', '#dd4477', '#0099c6', '#990099'], /** * @cfg {String} [zeroColor] The bar color for zero values. */ zeroColor: null, /** * @cfg {String} [nullColor] The bar color for null values. Usually null values are omitted and not plotted. Setting * this config causes a very thin bar to be plotted with the special color in the case that null is a meaningful value in the series. */ nullColor: null, /** * @cfg {Boolean} [zeroAxis=true] Centers the Y axis at zero by default. */ zeroAxis: true, /** * @cfg {Number} [barWidth=4] The pixel width of bars. */ barWidth: 4, /** * @cfg {Number} [barSpacing=1] The pixel spacing between bars. */ barSpacing: 1, /** * @cfg {Number} [chartRangeMin] The minimum value to use for the range of Y values of the chart - Defaults to the minimum value supplied. */ chartRangeMin: null, /** * @cfg {Number} [chartRangeMax] The maximum value to use for the range of Y values of the chart - Defaults to the minimum value supplied. */ chartRangeMax: null, /** * @cfg {Boolean} chartRangeClip If true then the y values supplied to plot will be clipped to fall * between {@link #chartRangeMin} and {@link #chartRangeMax} - By default chartRangeMin/Max just ensure that the chart * spans at least that range of values, but does not constrain it. */ chartRangeClip: false, /** * @inheritdoc Ext.sparkline.TriState */ colorMap: null }, tipTpl: '● {prefix}{value}{suffix}', remove: function (vals, filter) { var i, vl, result = []; for (i = 0, vl = vals.length; i < vl; i++) { if (vals[i] !== filter) { result.push(vals[i]); } } return result; }, // determine if all values of an array match a value // returns true if the array is empty all: function(arr, val, ignoreNull) { var i; for (i = arr.length; i--; ) { if (ignoreNull && arr[i] === null) { continue; } if (arr[i] !== val) { return false; } } return true; }, applyColorMap: function(colorMap) { var me = this; if (Ext.isArray(colorMap)) { me.colorMapByIndex = colorMap; me.colorMapByValue = null; } else { me.colorMapByIndex = null; me.colorMapByValue = colorMap; if (me.colorMapByValue && me.colorMapByValue.get == null) { me.colorMapByValue = new Ext.sparkline.RangeMap(colorMap); } } me.applyConfigChange(); return colorMap; }, onUpdate: function () { var me = this, values = me.values, barWidth = me.getBarWidth(), barSpacing = me.getBarSpacing(), chartRangeMin = me.getChartRangeMin(), chartRangeMax = me.getChartRangeMax(), chartRangeClip = me.getChartRangeClip(), stackMin = Infinity, stackMax = -Infinity, isStackString, groupMin, groupMax, stackRanges, numValues, i, vlen, range, zeroAxis = me.getZeroAxis(), xAxisOffset, min, max, clipMin, clipMax, stacked, vlist, j, slen, svals, val, yoffset, yMaxCalc, stackTotals = [], stackRangesNeg = []; // scan values to determine whether to stack bars for (i = 0, vlen = values.length; i < vlen; i++) { val = values[i]; isStackString = typeof(val) === 'string' && val.indexOf(':') > -1; if (isStackString || Ext.isArray(val)) { stacked = true; if (isStackString) { val = values[i] = me.normalizeValues(val.split(':')); } val = me.remove(val, null); // min/max will treat null as zero groupMin = Math.min.apply(Math, val); groupMax = Math.max.apply(Math, val); if (groupMin < stackMin) { stackMin = groupMin; } if (groupMax > stackMax) { stackMax = groupMax; } } } me.stacked = stacked; me.regionShapes = {}; me.totalBarWidth = barWidth + barSpacing; me.width = (values.length * barWidth) + ((values.length - 1) * barSpacing); if (chartRangeClip) { clipMin = chartRangeMin == null ? -Infinity : chartRangeMin; clipMax = chartRangeMax == null ? Infinity : chartRangeMax; } numValues = []; stackRanges = stacked ? [] : numValues; for (i = 0, vlen = values.length; i < vlen; i++) { if (stacked) { vlist = values[i]; values[i] = svals = []; stackTotals[i] = 0; stackRanges[i] = stackRangesNeg[i] = 0; for (j = 0, slen = vlist.length; j < slen; j++) { val = svals[j] = chartRangeClip ? Ext.Number.constrain(vlist[j], clipMin, clipMax) : vlist[j]; if (val !== null) { if (val > 0) { stackTotals[i] += val; } if (stackMin < 0 && stackMax > 0) { if (val < 0) { stackRangesNeg[i] += Math.abs(val); } else { stackRanges[i] += val; } } else { stackRanges[i] += Math.abs(val - (val < 0 ? stackMax : stackMin)); } numValues.push(val); } } } else { val = chartRangeClip ? Ext.Number.constrain(values[i], clipMin, clipMax) : values[i]; val = values[i] = me.normalizeValue(val); if (val !== null) { numValues.push(val); } } } me.max = max = Math.max.apply(Math, numValues); me.min = min = Math.min.apply(Math, numValues); me.stackMax = stackMax = stacked ? Math.max.apply(Math, stackTotals) : max; me.stackMin = stackMin = stacked ? Math.min.apply(Math, numValues) : min; if (chartRangeMin != null && (chartRangeClip || chartRangeMin < min)) { min = chartRangeMin; } if (chartRangeMax != null && (chartRangeClip || chartRangeMax > max)) { max = chartRangeMax; } if (min <= 0 && max >= 0 && zeroAxis) { xAxisOffset = 0; } else if (!zeroAxis) { xAxisOffset = min; } else if (min > 0) { xAxisOffset = min; } else { xAxisOffset = max; } me.xAxisOffset = xAxisOffset; range = stacked ? (Math.max.apply(Math, stackRanges) + Math.max.apply(Math, stackRangesNeg)) : max - min; // as we plot zero/min values a single pixel line, we add a pixel to all other // values - Reduce the effective canvas size to suit me.canvasHeightEf = (zeroAxis && min < 0) ? me.getHeight() - 2 : me.getHeight() - 1; if (min < xAxisOffset) { yMaxCalc = (stacked && max >= 0) ? stackMax : max; yoffset = (yMaxCalc - xAxisOffset) / range * me.getHeight(); if (yoffset !== Math.ceil(yoffset)) { me.canvasHeightEf -= 2; yoffset = Math.ceil(yoffset); } } else { yoffset = me.getHeight(); } me.yoffset = yoffset; me.range = range; }, getRegion: function (x, y) { var result = Math.floor(x / this.totalBarWidth); return (result < 0 || result >= this.values.length) ? undefined : result; }, getRegionFields: function (region) { var values = Ext.Array.from(this.values[region]), result = [], value, i; for (i = values.length; i--;) { value = values[i]; result.push({ isNull: value === null, value: value, color: this.calcColor(i, value, region), offset: region }); } return result; }, calcColor: function (stacknum, value, valuenum) { var me = this, colorMapByIndex = me.colorMapByIndex, colorMapByValue = me.colorMapByValue, color, newColor, zeroColor = me.getZeroColor(); if (this.stacked) { color = me.getStackedBarColor(); } else { color = (value < 0) ? me.getNegBarColor() : me.getBarColor(); } if (value === 0 && zeroColor != null) { color = zeroColor; } if (colorMapByValue && (newColor = colorMapByValue.get(value))) { color = newColor; } else if (colorMapByIndex && colorMapByIndex.length > valuenum) { color = colorMapByIndex[valuenum]; } return Ext.isArray(color) ? color[stacknum % color.length] : color; }, /* * Render bar(s) for a region */ renderRegion: function(valuenum, highlight) { var me = this, vals = me.values[valuenum], xaxisOffset = me.xAxisOffset, range = me.range, stacked = me.stacked, canvas = me.canvas, barWidth = me.getBarWidth(), x = valuenum * me.totalBarWidth, canvasHeightEf = me.canvasHeightEf, yoffset = me.yoffset, y, height, color, isNull, yoffsetNeg, i, valcount, val, minPlotted, allMin, nullColor = me.getNullColor(); vals = Ext.isArray(vals) ? vals : [vals]; valcount = vals.length; val = vals[0]; isNull = me.all(vals, null); allMin = me.all(vals, xaxisOffset, true); if (isNull) { if (nullColor) { color = highlight ? nullColor : me.calcHighlightColor(nullColor, me); y = (yoffset > 0) ? yoffset - 1 : yoffset; canvas.drawRect(x, y, barWidth - 1, 0, color, color).append(); } return; } yoffsetNeg = yoffset; for (i = 0; i < valcount; i++) { val = vals[i]; if (stacked && val === xaxisOffset) { if (!allMin || minPlotted) { continue; } minPlotted = true; } if (range > 0) { height = Math.floor(canvasHeightEf * ((Math.abs(val - xaxisOffset) / range))) + 1; } else { height = 1; } if (val < xaxisOffset || (val === xaxisOffset && yoffset === 0)) { y = yoffsetNeg; yoffsetNeg += height; } else { y = yoffset - height; yoffset -= height; } color = me.calcColor(i, val, valuenum); if (highlight) { color = me.calcHighlightColor(color, me); } canvas.drawRect(x, y, barWidth - 1, height - 1, color, color).append(); } }}, function(cls) { cls.onClassCreated(cls);});