assets/admin/global/plugins/highmaps/js/modules/heatmap.src.js
/**
* @license Highmaps JS v1.1.9 (2015-10-07)
*
* (c) 2011-2014 Torstein Honsi
*
* License: www.highcharts.com/license
*/
/*global HighchartsAdapter*/
(function (Highcharts) {
var UNDEFINED,
Axis = Highcharts.Axis,
Chart = Highcharts.Chart,
Color = Highcharts.Color,
Legend = Highcharts.Legend,
LegendSymbolMixin = Highcharts.LegendSymbolMixin,
Series = Highcharts.Series,
Point = Highcharts.Point,
defaultOptions = Highcharts.getOptions(),
each = Highcharts.each,
extend = Highcharts.extend,
extendClass = Highcharts.extendClass,
merge = Highcharts.merge,
pick = Highcharts.pick,
seriesTypes = Highcharts.seriesTypes,
wrap = Highcharts.wrap,
noop = function () {};
/**
* The ColorAxis object for inclusion in gradient legends
*/
var ColorAxis = Highcharts.ColorAxis = function () {
this.isColorAxis = true;
this.init.apply(this, arguments);
};
extend(ColorAxis.prototype, Axis.prototype);
extend(ColorAxis.prototype, {
defaultColorAxisOptions: {
lineWidth: 0,
minPadding: 0,
maxPadding: 0,
gridLineWidth: 1,
tickPixelInterval: 72,
startOnTick: true,
endOnTick: true,
offset: 0,
marker: {
animation: {
duration: 50
},
color: 'gray',
width: 0.01
},
labels: {
overflow: 'justify'
},
minColor: '#EFEFFF',
maxColor: '#003875',
tickLength: 5
},
init: function (chart, userOptions) {
var horiz = chart.options.legend.layout !== 'vertical',
options;
// Build the options
options = merge(this.defaultColorAxisOptions, {
side: horiz ? 2 : 1,
reversed: !horiz
}, userOptions, {
opposite: !horiz,
showEmpty: false,
title: null,
isColor: true
});
Axis.prototype.init.call(this, chart, options);
// Base init() pushes it to the xAxis array, now pop it again
//chart[this.isXAxis ? 'xAxis' : 'yAxis'].pop();
// Prepare data classes
if (userOptions.dataClasses) {
this.initDataClasses(userOptions);
}
this.initStops(userOptions);
// Override original axis properties
this.horiz = horiz;
this.zoomEnabled = false;
},
/*
* Return an intermediate color between two colors, according to pos where 0
* is the from color and 1 is the to color.
* NOTE: Changes here should be copied
* to the same function in drilldown.src.js and solid-gauge-src.js.
*/
tweenColors: function (from, to, pos) {
// Check for has alpha, because rgba colors perform worse due to lack of
// support in WebKit.
var hasAlpha,
ret;
// Unsupported color, return to-color (#3920)
if (!to.rgba.length || !from.rgba.length) {
ret = to.raw || 'none';
// Interpolate
} else {
from = from.rgba;
to = to.rgba;
hasAlpha = (to[3] !== 1 || from[3] !== 1);
ret = (hasAlpha ? 'rgba(' : 'rgb(') +
Math.round(to[0] + (from[0] - to[0]) * (1 - pos)) + ',' +
Math.round(to[1] + (from[1] - to[1]) * (1 - pos)) + ',' +
Math.round(to[2] + (from[2] - to[2]) * (1 - pos)) +
(hasAlpha ? (',' + (to[3] + (from[3] - to[3]) * (1 - pos))) : '') + ')';
}
return ret;
},
initDataClasses: function (userOptions) {
var axis = this,
chart = this.chart,
dataClasses,
colorCounter = 0,
options = this.options,
len = userOptions.dataClasses.length;
this.dataClasses = dataClasses = [];
this.legendItems = [];
each(userOptions.dataClasses, function (dataClass, i) {
var colors;
dataClass = merge(dataClass);
dataClasses.push(dataClass);
if (!dataClass.color) {
if (options.dataClassColor === 'category') {
colors = chart.options.colors;
dataClass.color = colors[colorCounter++];
// loop back to zero
if (colorCounter === colors.length) {
colorCounter = 0;
}
} else {
dataClass.color = axis.tweenColors(
Color(options.minColor),
Color(options.maxColor),
len < 2 ? 0.5 : i / (len - 1) // #3219
);
}
}
});
},
initStops: function (userOptions) {
this.stops = userOptions.stops || [
[0, this.options.minColor],
[1, this.options.maxColor]
];
each(this.stops, function (stop) {
stop.color = Color(stop[1]);
});
},
/**
* Extend the setOptions method to process extreme colors and color
* stops.
*/
setOptions: function (userOptions) {
Axis.prototype.setOptions.call(this, userOptions);
this.options.crosshair = this.options.marker;
this.coll = 'colorAxis';
},
setAxisSize: function () {
var symbol = this.legendSymbol,
chart = this.chart,
x,
y,
width,
height;
if (symbol) {
this.left = x = symbol.attr('x');
this.top = y = symbol.attr('y');
this.width = width = symbol.attr('width');
this.height = height = symbol.attr('height');
this.right = chart.chartWidth - x - width;
this.bottom = chart.chartHeight - y - height;
this.len = this.horiz ? width : height;
this.pos = this.horiz ? x : y;
}
},
/**
* Translate from a value to a color
*/
toColor: function (value, point) {
var pos,
stops = this.stops,
from,
to,
color,
dataClasses = this.dataClasses,
dataClass,
i;
if (dataClasses) {
i = dataClasses.length;
while (i--) {
dataClass = dataClasses[i];
from = dataClass.from;
to = dataClass.to;
if ((from === UNDEFINED || value >= from) && (to === UNDEFINED || value <= to)) {
color = dataClass.color;
if (point) {
point.dataClass = i;
}
break;
}
}
} else {
if (this.isLog) {
value = this.val2lin(value);
}
pos = 1 - ((this.max - value) / ((this.max - this.min) || 1));
i = stops.length;
while (i--) {
if (pos > stops[i][0]) {
break;
}
}
from = stops[i] || stops[i + 1];
to = stops[i + 1] || from;
// The position within the gradient
pos = 1 - (to[0] - pos) / ((to[0] - from[0]) || 1);
color = this.tweenColors(
from.color,
to.color,
pos
);
}
return color;
},
/**
* Override the getOffset method to add the whole axis groups inside the legend.
*/
getOffset: function () {
var group = this.legendGroup,
sideOffset = this.chart.axisOffset[this.side];
if (group) {
// Hook for the getOffset method to add groups to this parent group
this.axisParent = group;
// Call the base
Axis.prototype.getOffset.call(this);
// First time only
if (!this.added) {
this.added = true;
this.labelLeft = 0;
this.labelRight = this.width;
}
// Reset it to avoid color axis reserving space
this.chart.axisOffset[this.side] = sideOffset;
}
},
/**
* Create the color gradient
*/
setLegendColor: function () {
var grad,
horiz = this.horiz,
options = this.options,
reversed = this.reversed;
grad = horiz ? [+reversed, 0, +!reversed, 0] : [0, +!reversed, 0, +reversed]; // #3190
this.legendColor = {
linearGradient: { x1: grad[0], y1: grad[1], x2: grad[2], y2: grad[3] },
stops: options.stops || [
[0, options.minColor],
[1, options.maxColor]
]
};
},
/**
* The color axis appears inside the legend and has its own legend symbol
*/
drawLegendSymbol: function (legend, item) {
var padding = legend.padding,
legendOptions = legend.options,
horiz = this.horiz,
box,
width = pick(legendOptions.symbolWidth, horiz ? 200 : 12),
height = pick(legendOptions.symbolHeight, horiz ? 12 : 200),
labelPadding = pick(legendOptions.labelPadding, horiz ? 16 : 30),
itemDistance = pick(legendOptions.itemDistance, 10);
this.setLegendColor();
// Create the gradient
item.legendSymbol = this.chart.renderer.rect(
0,
legend.baseline - 11,
width,
height
).attr({
zIndex: 1
}).add(item.legendGroup);
box = item.legendSymbol.getBBox();
// Set how much space this legend item takes up
this.legendItemWidth = width + padding + (horiz ? itemDistance : labelPadding);
this.legendItemHeight = height + padding + (horiz ? labelPadding : 0);
},
/**
* Fool the legend
*/
setState: noop,
visible: true,
setVisible: noop,
getSeriesExtremes: function () {
var series;
if (this.series.length) {
series = this.series[0];
this.dataMin = series.valueMin;
this.dataMax = series.valueMax;
}
},
drawCrosshair: function (e, point) {
var plotX = point && point.plotX,
plotY = point && point.plotY,
crossPos,
axisPos = this.pos,
axisLen = this.len;
if (point) {
crossPos = this.toPixels(point[point.series.colorKey]);
if (crossPos < axisPos) {
crossPos = axisPos - 2;
} else if (crossPos > axisPos + axisLen) {
crossPos = axisPos + axisLen + 2;
}
point.plotX = crossPos;
point.plotY = this.len - crossPos;
Axis.prototype.drawCrosshair.call(this, e, point);
point.plotX = plotX;
point.plotY = plotY;
if (this.cross) {
this.cross
.attr({
fill: this.crosshair.color
})
.add(this.legendGroup);
}
}
},
getPlotLinePath: function (a, b, c, d, pos) {
if (typeof pos === 'number') { // crosshairs only // #3969 pos can be 0 !!
return this.horiz ?
['M', pos - 4, this.top - 6, 'L', pos + 4, this.top - 6, pos, this.top, 'Z'] :
['M', this.left, pos, 'L', this.left - 6, pos + 6, this.left - 6, pos - 6, 'Z'];
} else {
return Axis.prototype.getPlotLinePath.call(this, a, b, c, d);
}
},
update: function (newOptions, redraw) {
var chart = this.chart,
legend = chart.legend;
each(this.series, function (series) {
series.isDirtyData = true; // Needed for Axis.update when choropleth colors change
});
// When updating data classes, destroy old items and make sure new ones are created (#3207)
if (newOptions.dataClasses && legend.allItems) {
each(legend.allItems, function (item) {
if (item.isDataClass) {
item.legendGroup.destroy();
}
});
chart.isDirtyLegend = true;
}
// Keep the options structure updated for export. Unlike xAxis and yAxis, the colorAxis is
// not an array. (#3207)
chart.options[this.coll] = merge(this.userOptions, newOptions);
Axis.prototype.update.call(this, newOptions, redraw);
if (this.legendItem) {
this.setLegendColor();
legend.colorizeItem(this, true);
}
},
/**
* Get the legend item symbols for data classes
*/
getDataClassLegendSymbols: function () {
var axis = this,
chart = this.chart,
legendItems = this.legendItems,
legendOptions = chart.options.legend,
valueDecimals = legendOptions.valueDecimals,
valueSuffix = legendOptions.valueSuffix || '',
name;
if (!legendItems.length) {
each(this.dataClasses, function (dataClass, i) {
var vis = true,
from = dataClass.from,
to = dataClass.to;
// Assemble the default name. This can be overridden by legend.options.labelFormatter
name = '';
if (from === UNDEFINED) {
name = '< ';
} else if (to === UNDEFINED) {
name = '> ';
}
if (from !== UNDEFINED) {
name += Highcharts.numberFormat(from, valueDecimals) + valueSuffix;
}
if (from !== UNDEFINED && to !== UNDEFINED) {
name += ' - ';
}
if (to !== UNDEFINED) {
name += Highcharts.numberFormat(to, valueDecimals) + valueSuffix;
}
// Add a mock object to the legend items
legendItems.push(extend({
chart: chart,
name: name,
options: {},
drawLegendSymbol: LegendSymbolMixin.drawRectangle,
visible: true,
setState: noop,
isDataClass: true,
setVisible: function () {
vis = this.visible = !vis;
each(axis.series, function (series) {
each(series.points, function (point) {
if (point.dataClass === i) {
point.setVisible(vis);
}
});
});
chart.legend.colorizeItem(this, vis);
}
}, dataClass));
});
}
return legendItems;
},
name: '' // Prevents 'undefined' in legend in IE8
});
/**
* Handle animation of the color attributes directly
*/
each(['fill', 'stroke'], function (prop) {
HighchartsAdapter.addAnimSetter(prop, function (fx) {
fx.elem.attr(prop, ColorAxis.prototype.tweenColors(Color(fx.start), Color(fx.end), fx.pos));
});
});
/**
* Extend the chart getAxes method to also get the color axis
*/
wrap(Chart.prototype, 'getAxes', function (proceed) {
var options = this.options,
colorAxisOptions = options.colorAxis;
proceed.call(this);
this.colorAxis = [];
if (colorAxisOptions) {
proceed = new ColorAxis(this, colorAxisOptions); // Fake assignment for jsLint
}
});
/**
* Wrap the legend getAllItems method to add the color axis. This also removes the
* axis' own series to prevent them from showing up individually.
*/
wrap(Legend.prototype, 'getAllItems', function (proceed) {
var allItems = [],
colorAxis = this.chart.colorAxis[0];
if (colorAxis) {
// Data classes
if (colorAxis.options.dataClasses) {
allItems = allItems.concat(colorAxis.getDataClassLegendSymbols());
// Gradient legend
} else {
// Add this axis on top
allItems.push(colorAxis);
}
// Don't add the color axis' series
each(colorAxis.series, function (series) {
series.options.showInLegend = false;
});
}
return allItems.concat(proceed.call(this));
});/**
* Mixin for maps and heatmaps
*/
var colorPointMixin = {
/**
* Set the visibility of a single point
*/
setVisible: function (vis) {
var point = this,
method = vis ? 'show' : 'hide';
// Show and hide associated elements
each(['graphic', 'dataLabel'], function (key) {
if (point[key]) {
point[key][method]();
}
});
}
};
var colorSeriesMixin = {
pointAttrToOptions: { // mapping between SVG attributes and the corresponding options
stroke: 'borderColor',
'stroke-width': 'borderWidth',
fill: 'color',
dashstyle: 'dashStyle'
},
pointArrayMap: ['value'],
axisTypes: ['xAxis', 'yAxis', 'colorAxis'],
optionalAxis: 'colorAxis',
trackerGroups: ['group', 'markerGroup', 'dataLabelsGroup'],
getSymbol: noop,
parallelArrays: ['x', 'y', 'value'],
colorKey: 'value',
/**
* In choropleth maps, the color is a result of the value, so this needs translation too
*/
translateColors: function () {
var series = this,
nullColor = this.options.nullColor,
colorAxis = this.colorAxis,
colorKey = this.colorKey;
each(this.data, function (point) {
var value = point[colorKey],
color;
color = point.options.color ||
(value === null ? nullColor : (colorAxis && value !== undefined) ? colorAxis.toColor(value, point) : point.color || series.color);
if (color) {
point.color = color;
}
});
}
};
/**
* Extend the default options with map options
*/
defaultOptions.plotOptions.heatmap = merge(defaultOptions.plotOptions.scatter, {
animation: false,
borderWidth: 0,
nullColor: '#F8F8F8',
dataLabels: {
formatter: function () { // #2945
return this.point.value;
},
inside: true,
verticalAlign: 'middle',
crop: false,
overflow: false,
padding: 0 // #3837
},
marker: null,
pointRange: null, // dynamically set to colsize by default
tooltip: {
pointFormat: '{point.x}, {point.y}: {point.value}<br/>'
},
states: {
normal: {
animation: true
},
hover: {
halo: false, // #3406, halo is not required on heatmaps
brightness: 0.2
}
}
});
// The Heatmap series type
seriesTypes.heatmap = extendClass(seriesTypes.scatter, merge(colorSeriesMixin, {
type: 'heatmap',
pointArrayMap: ['y', 'value'],
hasPointSpecificOptions: true,
pointClass: extendClass(Point, colorPointMixin),
supportsDrilldown: true,
getExtremesFromAll: true,
directTouch: true,
/**
* Override the init method to add point ranges on both axes.
*/
init: function () {
var options;
seriesTypes.scatter.prototype.init.apply(this, arguments);
options = this.options;
this.pointRange = options.pointRange = pick(options.pointRange, options.colsize || 1); // #3758, prevent resetting in setData
this.yAxis.axisPointRange = options.rowsize || 1; // general point range
},
translate: function () {
var series = this,
options = series.options,
xAxis = series.xAxis,
yAxis = series.yAxis,
between = function (x, a, b) {
return Math.min(Math.max(a, x), b);
};
series.generatePoints();
each(series.points, function (point) {
var xPad = (options.colsize || 1) / 2,
yPad = (options.rowsize || 1) / 2,
x1 = between(Math.round(xAxis.len - xAxis.translate(point.x - xPad, 0, 1, 0, 1)), 0, xAxis.len),
x2 = between(Math.round(xAxis.len - xAxis.translate(point.x + xPad, 0, 1, 0, 1)), 0, xAxis.len),
y1 = between(Math.round(yAxis.translate(point.y - yPad, 0, 1, 0, 1)), 0, yAxis.len),
y2 = between(Math.round(yAxis.translate(point.y + yPad, 0, 1, 0, 1)), 0, yAxis.len);
// Set plotX and plotY for use in K-D-Tree and more
point.plotX = point.clientX = (x1 + x2) / 2;
point.plotY = (y1 + y2) / 2;
point.shapeType = 'rect';
point.shapeArgs = {
x: Math.min(x1, x2),
y: Math.min(y1, y2),
width: Math.abs(x2 - x1),
height: Math.abs(y2 - y1)
};
});
series.translateColors();
// Make sure colors are updated on colorAxis update (#2893)
if (this.chart.hasRendered) {
each(series.points, function (point) {
point.shapeArgs.fill = point.options.color || point.color; // #3311
});
}
},
drawPoints: seriesTypes.column.prototype.drawPoints,
animate: noop,
getBox: noop,
drawLegendSymbol: LegendSymbolMixin.drawRectangle,
getExtremes: function () {
// Get the extremes from the value data
Series.prototype.getExtremes.call(this, this.valueData);
this.valueMin = this.dataMin;
this.valueMax = this.dataMax;
// Get the extremes from the y data
Series.prototype.getExtremes.call(this);
}
}));
}(Highcharts));