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/* *
* (c) 2014-2019 Highsoft AS
*
* Authors: Jon Arild Nygard / Oystein Moseng
*
* License: www.highcharts.com/license
*/
'use strict';
import H from '../parts/Globals.js';
import mixinTreeSeries from '../mixins/tree-series.js';
import drawPoint from '../mixins/draw-point.js';
import '../parts/Utilities.js';
import '../parts/Options.js';
import '../parts/Series.js';
import '../parts/Color.js';
var seriesType = H.seriesType,
seriesTypes = H.seriesTypes,
addEvent = H.addEvent,
merge = H.merge,
extend = H.extend,
error = H.error,
defined = H.defined,
noop = H.noop,
fireEvent = H.fireEvent,
getColor = mixinTreeSeries.getColor,
getLevelOptions = mixinTreeSeries.getLevelOptions,
isArray = H.isArray,
isBoolean = function (x) {
return typeof x === 'boolean';
},
isNumber = H.isNumber,
isObject = H.isObject,
isString = H.isString,
pick = H.pick,
Series = H.Series,
stableSort = H.stableSort,
color = H.Color,
eachObject = function (list, func, context) {
context = context || this;
H.objectEach(list, function (val, key) {
func.call(context, val, key, list);
});
},
// @todo find correct name for this function.
// @todo Similar to reduce, this function is likely redundant
recursive = function (item, func, context) {
var next;
context = context || this;
next = func.call(context, item);
if (next !== false) {
recursive(next, func, context);
}
},
updateRootId = mixinTreeSeries.updateRootId;
/**
* @private
* @class
* @name Highcharts.seriesTypes.treemap
*
* @augments Highcharts.Series
*/
seriesType(
'treemap',
'scatter'
/**
* A treemap displays hierarchical data using nested rectangles. The data
* can be laid out in varying ways depending on options.
*
* @sample highcharts/demo/treemap-large-dataset/
* Treemap
*
* @extends plotOptions.scatter
* @excluding marker, jitter
* @product highcharts
* @optionparent plotOptions.treemap
*/
, {
/**
* When enabled the user can click on a point which is a parent and
* zoom in on its children. Deprecated and replaced by
* [allowTraversingTree](#plotOptions.treemap.allowTraversingTree).
*
* @sample {highcharts} highcharts/plotoptions/treemap-allowdrilltonode/
* Enabled
*
* @deprecated
* @type {boolean}
* @default false
* @since 4.1.0
* @product highcharts
* @apioption plotOptions.treemap.allowDrillToNode
*/
/**
* When enabled the user can click on a point which is a parent and
* zoom in on its children.
*
* @sample {highcharts} highcharts/plotoptions/treemap-allowtraversingtree/
* Enabled
*
* @since 7.0.3
* @product highcharts
*/
allowTraversingTree: false,
animationLimit: 250,
/**
* When the series contains less points than the crop threshold, all
* points are drawn, event if the points fall outside the visible plot
* area at the current zoom. The advantage of drawing all points
* (including markers and columns), is that animation is performed on
* updates. On the other hand, when the series contains more points than
* the crop threshold, the series data is cropped to only contain points
* that fall within the plot area. The advantage of cropping away
* invisible points is to increase performance on large series.
*
* @type {number}
* @default 300
* @since 4.1.0
* @product highcharts
* @apioption plotOptions.treemap.cropThreshold
*/
/**
* Fires on a request for change of root node for the tree, before the
* update is made. An event object is passed to the function, containing
* additional properties `newRootId`, `previousRootId`, `redraw` and
* `trigger`.
*
* @type {function}
* @default undefined
* @sample {highcharts} highcharts/plotoptions/treemap-events-setrootnode/
* Alert update information on setRootNode event.
* @since 7.0.3
* @product highcharts
* @apioption plotOptions.treemap.events.setRootNode
*/
/**
* This option decides if the user can interact with the parent nodes
* or just the leaf nodes. When this option is undefined, it will be
* true by default. However when allowTraversingTree is true, then it
* will be false by default.
*
* @sample {highcharts} highcharts/plotoptions/treemap-interactbyleaf-false/
* False
* @sample {highcharts} highcharts/plotoptions/treemap-interactbyleaf-true-and-allowtraversingtree/
* InteractByLeaf and allowTraversingTree is true
*
* @type {boolean}
* @since 4.1.2
* @product highcharts
* @apioption plotOptions.treemap.interactByLeaf
*/
/**
* The sort index of the point inside the treemap level.
*
* @sample {highcharts} highcharts/plotoptions/treemap-sortindex/
* Sort by years
*
* @type {number}
* @since 4.1.10
* @product highcharts
* @apioption plotOptions.treemap.sortIndex
*/
/**
* When using automatic point colors pulled from the `options.colors`
* collection, this option determines whether the chart should receive
* one color per series or one color per point.
*
* @see [series colors](#plotOptions.treemap.colors)
*
* @type {boolean}
* @default false
* @since 2.0
* @product highcharts
* @apioption plotOptions.treemap.colorByPoint
*/
/**
* A series specific or series type specific color set to apply instead
* of the global [colors](#colors) when
* [colorByPoint](#plotOptions.treemap.colorByPoint) is true.
*
* @type {Array<Highcharts.ColorString|Highcharts.GradientColorObject|Highcharts.PatternObject>}
* @since 3.0
* @product highcharts
* @apioption plotOptions.treemap.colors
*/
/**
* Whether to display this series type or specific series item in the
* legend.
*/
showInLegend: false,
/**
* @ignore-option
*/
marker: false,
colorByPoint: false,
/**
* @since 4.1.0
*/
dataLabels: {
/** @ignore-option */
defer: false,
/** @ignore-option */
enabled: true,
/** @ignore-option */
formatter: function () {
var point = this && this.point ? this.point : {},
name = isString(point.name) ? point.name : '';
return name;
},
/** @ignore-option */
inside: true,
/** @ignore-option */
verticalAlign: 'middle'
},
tooltip: {
headerFormat: '',
pointFormat: '<b>{point.name}</b>: {point.value}<br/>'
},
/**
* Whether to ignore hidden points when the layout algorithm runs.
* If `false`, hidden points will leave open spaces.
*
* @since 5.0.8
*/
ignoreHiddenPoint: true,
/**
* This option decides which algorithm is used for setting position
* and dimensions of the points.
*
* @see [How to write your own algorithm](https://www.highcharts.com/docs/chart-and-series-types/treemap)
*
* @sample {highcharts} highcharts/plotoptions/treemap-layoutalgorithm-sliceanddice/
* SliceAndDice by default
* @sample {highcharts} highcharts/plotoptions/treemap-layoutalgorithm-stripes/
* Stripes
* @sample {highcharts} highcharts/plotoptions/treemap-layoutalgorithm-squarified/
* Squarified
* @sample {highcharts} highcharts/plotoptions/treemap-layoutalgorithm-strip/
* Strip
*
* @since 4.1.0
* @validvalue ["sliceAndDice", "stripes", "squarified", "strip"]
*/
layoutAlgorithm: 'sliceAndDice',
/**
* Defines which direction the layout algorithm will start drawing.
*
* @since 4.1.0
* @validvalue ["vertical", "horizontal"]
*/
layoutStartingDirection: 'vertical',
/**
* Enabling this option will make the treemap alternate the drawing
* direction between vertical and horizontal. The next levels starting
* direction will always be the opposite of the previous.
*
* @sample {highcharts} highcharts/plotoptions/treemap-alternatestartingdirection-true/
* Enabled
*
* @since 4.1.0
*/
alternateStartingDirection: false,
/**
* Used together with the levels and allowTraversingTree options. When
* set to false the first level visible to be level one, which is
* dynamic when traversing the tree. Otherwise the level will be the
* same as the tree structure.
*
* @since 4.1.0
*/
levelIsConstant: true,
/**
* Options for the button appearing when drilling down in a treemap.
* Deprecated and replaced by
* [traverseUpButton](#plotOptions.treemap.traverseUpButton).
*
* @deprecated
*/
drillUpButton: {
/**
* The position of the button.
*
* @deprecated
*/
position: {
/**
* Vertical alignment of the button.
*
* @deprecated
* @type {Highcharts.VerticalAlignValue}
* @default top
* @product highcharts
* @apioption plotOptions.treemap.drillUpButton.position.verticalAlign
*/
/**
* Horizontal alignment of the button.
*
* @deprecated
* @type {Highcharts.AlignValue}
*/
align: 'right',
/**
* Horizontal offset of the button.
*
* @deprecated
*/
x: -10,
/**
* Vertical offset of the button.
*
* @deprecated
*/
y: 10
}
},
/**
* Options for the button appearing when traversing down in a treemap.
*/
traverseUpButton: {
/**
* The position of the button.
*/
position: {
/**
* Vertical alignment of the button.
*
* @type {Highcharts.VerticalAlignValue}
* @default top
* @product highcharts
* @apioption plotOptions.treemap.traverseUpButton.position.verticalAlign
*/
/**
* Horizontal alignment of the button.
*
* @type {Highcharts.AlignValue}
*/
align: 'right',
/**
* Horizontal offset of the button.
*/
x: -10,
/**
* Vertical offset of the button.
*/
y: 10
}
},
/**
* Set options on specific levels. Takes precedence over series options,
* but not point options.
*
* @sample {highcharts} highcharts/plotoptions/treemap-levels/
* Styling dataLabels and borders
* @sample {highcharts} highcharts/demo/treemap-with-levels/
* Different layoutAlgorithm
*
* @type {Array<*>}
* @since 4.1.0
* @product highcharts
* @apioption plotOptions.treemap.levels
*/
/**
* Can set a `borderColor` on all points which lies on the same level.
*
* @type {Highcharts.ColorString}
* @since 4.1.0
* @product highcharts
* @apioption plotOptions.treemap.levels.borderColor
*/
/**
* Set the dash style of the border of all the point which lies on the
* level. See <a href"#plotoptions.scatter.dashstyle">
* plotOptions.scatter.dashStyle</a> for possible options.
*
* @type {string}
* @since 4.1.0
* @product highcharts
* @apioption plotOptions.treemap.levels.borderDashStyle
*/
/**
* Can set the borderWidth on all points which lies on the same level.
*
* @type {number}
* @since 4.1.0
* @product highcharts
* @apioption plotOptions.treemap.levels.borderWidth
*/
/**
* Can set a color on all points which lies on the same level.
*
* @type {Highcharts.ColorString|Highcharts.GradientColorObject|Highcharts.PatternObject}
* @since 4.1.0
* @product highcharts
* @apioption plotOptions.treemap.levels.color
*/
/**
* A configuration object to define how the color of a child varies from
* the parent's color. The variation is distributed among the children
* of node. For example when setting brightness, the brightness change
* will range from the parent's original brightness on the first child,
* to the amount set in the `to` setting on the last node. This allows a
* gradient-like color scheme that sets children out from each other
* while highlighting the grouping on treemaps and sectors on sunburst
* charts.
*
* @sample highcharts/demo/sunburst/
* Sunburst with color variation
*
* @since 6.0.0
* @product highcharts
* @apioption plotOptions.treemap.levels.colorVariation
*/
/**
* The key of a color variation. Currently supports `brightness` only.
*
* @type {string}
* @since 6.0.0
* @product highcharts
* @validvalue ["brightness"]
* @apioption plotOptions.treemap.levels.colorVariation.key
*/
/**
* The ending value of a color variation. The last sibling will receive
* this value.
*
* @type {number}
* @since 6.0.0
* @product highcharts
* @apioption plotOptions.treemap.levels.colorVariation.to
*/
/**
* Can set the options of dataLabels on each point which lies on the
* level.
* [plotOptions.treemap.dataLabels](#plotOptions.treemap.dataLabels) for
* possible values.
*
* @type {object}
* @since 4.1.0
* @product highcharts
* @apioption plotOptions.treemap.levels.dataLabels
*/
/**
* Can set the layoutAlgorithm option on a specific level.
*
* @type {string}
* @since 4.1.0
* @product highcharts
* @validvalue ["sliceAndDice", "stripes", "squarified", "strip"]
* @apioption plotOptions.treemap.levels.layoutAlgorithm
*/
/**
* Can set the layoutStartingDirection option on a specific level.
*
* @type {string}
* @since 4.1.0
* @product highcharts
* @validvalue ["vertical", "horizontal"]
* @apioption plotOptions.treemap.levels.layoutStartingDirection
*/
/**
* Decides which level takes effect from the options set in the levels
* object.
*
* @sample {highcharts} highcharts/plotoptions/treemap-levels/
* Styling of both levels
*
* @type {number}
* @since 4.1.0
* @product highcharts
* @apioption plotOptions.treemap.levels.level
*/
// Presentational options
/**
* The color of the border surrounding each tree map item.
*
* @type {Highcharts.ColorString}
*/
borderColor: '#e6e6e6',
/**
* The width of the border surrounding each tree map item.
*/
borderWidth: 1,
/**
* The opacity of a point in treemap. When a point has children, the
* visibility of the children is determined by the opacity.
*
* @since 4.2.4
*/
opacity: 0.15,
/**
* A wrapper object for all the series options in specific states.
*
* @extends plotOptions.heatmap.states
*/
states: {
/**
* Options for the hovered series
*
* @extends plotOptions.heatmap.states.hover
* @excluding halo
*/
hover: {
/**
* The border color for the hovered state.
*/
borderColor: '#999999',
/**
* Brightness for the hovered point. Defaults to 0 if the
* heatmap series is loaded first, otherwise 0.1.
*
* @type {number}
* @default undefined
*/
brightness: seriesTypes.heatmap ? 0 : 0.1,
/**
* @extends plotOptions.heatmap.states.hover.halo
*/
halo: false,
/**
* The opacity of a point in treemap. When a point has children,
* the visibility of the children is determined by the opacity.
*
* @since 4.2.4
*/
opacity: 0.75,
/**
* The shadow option for hovered state.
*/
shadow: false
}
}
// Prototype members
}, {
pointArrayMap: ['value'],
directTouch: true,
optionalAxis: 'colorAxis',
getSymbol: noop,
parallelArrays: ['x', 'y', 'value', 'colorValue'],
colorKey: 'colorValue', // Point color option key
trackerGroups: ['group', 'dataLabelsGroup'],
/**
* Creates an object map from parent id to childrens index.
*
* @private
* @function Highcharts.Series#getListOfParents
*
* @param {Highcharts.SeriesTreemapDataOptions} data
* List of points set in options.
*
* @param {Array<string>} existingIds
* List of all point ids.
*
* @return {object}
* Map from parent id to children index in data.
*/
getListOfParents: function (data, existingIds) {
var arr = isArray(data) ? data : [],
ids = isArray(existingIds) ? existingIds : [],
listOfParents = arr.reduce(function (prev, curr, i) {
var parent = pick(curr.parent, '');
if (prev[parent] === undefined) {
prev[parent] = [];
}
prev[parent].push(i);
return prev;
}, {
'': [] // Root of tree
});
// If parent does not exist, hoist parent to root of tree.
eachObject(listOfParents, function (children, parent, list) {
if ((parent !== '') && (ids.indexOf(parent) === -1)) {
children.forEach(function (child) {
list[''].push(child);
});
delete list[parent];
}
});
return listOfParents;
},
// Creates a tree structured object from the series points
getTree: function () {
var series = this,
allIds = this.data.map(function (d) {
return d.id;
}),
parentList = series.getListOfParents(this.data, allIds);
series.nodeMap = [];
return series.buildNode('', -1, 0, parentList, null);
},
// Define hasData function for non-cartesian series.
// Returns true if the series has points at all.
hasData: function () {
return !!this.processedXData.length; // != 0
},
init: function (chart, options) {
var series = this,
colorSeriesMixin = H.colorSeriesMixin;
// If color series logic is loaded, add some properties
if (H.colorSeriesMixin) {
this.translateColors = colorSeriesMixin.translateColors;
this.colorAttribs = colorSeriesMixin.colorAttribs;
this.axisTypes = colorSeriesMixin.axisTypes;
}
// Handle deprecated options.
addEvent(series, 'setOptions', function (event) {
var options = event.userOptions;
if (
defined(options.allowDrillToNode) &&
!defined(options.allowTraversingTree)
) {
options.allowTraversingTree = options.allowDrillToNode;
delete options.allowDrillToNode;
}
if (
defined(options.drillUpButton) &&
!defined(options.traverseUpButton)
) {
options.traverseUpButton = options.drillUpButton;
delete options.drillUpButton;
}
});
Series.prototype.init.call(series, chart, options);
if (series.options.allowTraversingTree) {
addEvent(series, 'click', series.onClickDrillToNode);
}
},
buildNode: function (id, i, level, list, parent) {
var series = this,
children = [],
point = series.points[i],
height = 0,
node,
child;
// Actions
((list[id] || [])).forEach(function (i) {
child = series.buildNode(
series.points[i].id,
i,
(level + 1),
list,
id
);
height = Math.max(child.height + 1, height);
children.push(child);
});
node = {
id: id,
i: i,
children: children,
height: height,
level: level,
parent: parent,
visible: false // @todo move this to better location
};
series.nodeMap[node.id] = node;
if (point) {
point.node = node;
}
return node;
},
setTreeValues: function (tree) {
var series = this,
options = series.options,
idRoot = series.rootNode,
mapIdToNode = series.nodeMap,
nodeRoot = mapIdToNode[idRoot],
levelIsConstant = (
isBoolean(options.levelIsConstant) ?
options.levelIsConstant :
true
),
childrenTotal = 0,
children = [],
val,
point = series.points[tree.i];
// First give the children some values
tree.children.forEach(function (child) {
child = series.setTreeValues(child);
children.push(child);
if (!child.ignore) {
childrenTotal += child.val;
}
});
// Sort the children
stableSort(children, function (a, b) {
return a.sortIndex - b.sortIndex;
});
// Set the values
val = pick(point && point.options.value, childrenTotal);
if (point) {
point.value = val;
}
extend(tree, {
children: children,
childrenTotal: childrenTotal,
// Ignore this node if point is not visible
ignore: !(pick(point && point.visible, true) && (val > 0)),
isLeaf: tree.visible && !childrenTotal,
levelDynamic: (
tree.level - (levelIsConstant ? 0 : nodeRoot.level)
),
name: pick(point && point.name, ''),
sortIndex: pick(point && point.sortIndex, -val),
val: val
});
return tree;
},
/**
* Recursive function which calculates the area for all children of a
* node.
*
* @private
* @function Highcharts.Series#calculateChildrenAreas
*
* @param {object} node
* The node which is parent to the children.
*
* @param {object} area
* The rectangular area of the parent.
*/
calculateChildrenAreas: function (parent, area) {
var series = this,
options = series.options,
mapOptionsToLevel = series.mapOptionsToLevel,
level = mapOptionsToLevel[parent.level + 1],
algorithm = pick(
(
series[level &&
level.layoutAlgorithm] &&
level.layoutAlgorithm
),
options.layoutAlgorithm
),
alternate = options.alternateStartingDirection,
childrenValues = [],
children;
// Collect all children which should be included
children = parent.children.filter(function (n) {
return !n.ignore;
});
if (level && level.layoutStartingDirection) {
area.direction = level.layoutStartingDirection === 'vertical' ?
0 :
1;
}
childrenValues = series[algorithm](area, children);
children.forEach(function (child, index) {
var values = childrenValues[index];
child.values = merge(values, {
val: child.childrenTotal,
direction: (alternate ? 1 - area.direction : area.direction)
});
child.pointValues = merge(values, {
x: (values.x / series.axisRatio),
width: (values.width / series.axisRatio)
});
// If node has children, then call method recursively
if (child.children.length) {
series.calculateChildrenAreas(child, child.values);
}
});
},
setPointValues: function () {
var series = this,
xAxis = series.xAxis,
yAxis = series.yAxis;
series.points.forEach(function (point) {
var node = point.node,
values = node.pointValues,
x1,
x2,
y1,
y2,
crispCorr = 0;
// Get the crisp correction in classic mode. For this to work in
// styled mode, we would need to first add the shape (without x,
// y, width and height), then read the rendered stroke width
// using point.graphic.strokeWidth(), then modify and apply the
// shapeArgs. This applies also to column series, but the
// downside is performance and code complexity.
if (!series.chart.styledMode) {
crispCorr = (
(series.pointAttribs(point)['stroke-width'] || 0) % 2
) / 2;
}
// Points which is ignored, have no values.
if (values && node.visible) {
x1 = Math.round(
xAxis.translate(values.x, 0, 0, 0, 1)
) - crispCorr;
x2 = Math.round(
xAxis.translate(values.x + values.width, 0, 0, 0, 1)
) - crispCorr;
y1 = Math.round(
yAxis.translate(values.y, 0, 0, 0, 1)
) - crispCorr;
y2 = Math.round(
yAxis.translate(values.y + values.height, 0, 0, 0, 1)
) - crispCorr;
// Set point values
point.shapeArgs = {
x: Math.min(x1, x2),
y: Math.min(y1, y2),
width: Math.abs(x2 - x1),
height: Math.abs(y2 - y1)
};
point.plotX =
point.shapeArgs.x + (point.shapeArgs.width / 2);
point.plotY =
point.shapeArgs.y + (point.shapeArgs.height / 2);
} else {
// Reset visibility
delete point.plotX;
delete point.plotY;
}
});
},
// Set the node's color recursively, from the parent down.
setColorRecursive: function (
node,
parentColor,
colorIndex,
index,
siblings
) {
var series = this,
chart = series && series.chart,
colors = chart && chart.options && chart.options.colors,
colorInfo,
point;
if (node) {
colorInfo = getColor(node, {
colors: colors,
index: index,
mapOptionsToLevel: series.mapOptionsToLevel,
parentColor: parentColor,
parentColorIndex: colorIndex,
series: series,
siblings: siblings
});
point = series.points[node.i];
if (point) {
point.color = colorInfo.color;
point.colorIndex = colorInfo.colorIndex;
}
// Do it all again with the children
(node.children || []).forEach(function (child, i) {
series.setColorRecursive(
child,
colorInfo.color,
colorInfo.colorIndex,
i,
node.children.length
);
});
}
},
algorithmGroup: function (h, w, d, p) {
this.height = h;
this.width = w;
this.plot = p;
this.direction = d;
this.startDirection = d;
this.total = 0;
this.nW = 0;
this.lW = 0;
this.nH = 0;
this.lH = 0;
this.elArr = [];
this.lP = {
total: 0,
lH: 0,
nH: 0,
lW: 0,
nW: 0,
nR: 0,
lR: 0,
aspectRatio: function (w, h) {
return Math.max((w / h), (h / w));
}
};
this.addElement = function (el) {
this.lP.total = this.elArr[this.elArr.length - 1];
this.total = this.total + el;
if (this.direction === 0) {
// Calculate last point old aspect ratio
this.lW = this.nW;
this.lP.lH = this.lP.total / this.lW;
this.lP.lR = this.lP.aspectRatio(this.lW, this.lP.lH);
// Calculate last point new aspect ratio
this.nW = this.total / this.height;
this.lP.nH = this.lP.total / this.nW;
this.lP.nR = this.lP.aspectRatio(this.nW, this.lP.nH);
} else {
// Calculate last point old aspect ratio
this.lH = this.nH;
this.lP.lW = this.lP.total / this.lH;
this.lP.lR = this.lP.aspectRatio(this.lP.lW, this.lH);
// Calculate last point new aspect ratio
this.nH = this.total / this.width;
this.lP.nW = this.lP.total / this.nH;
this.lP.nR = this.lP.aspectRatio(this.lP.nW, this.nH);
}
this.elArr.push(el);
};
this.reset = function () {
this.nW = 0;
this.lW = 0;
this.elArr = [];
this.total = 0;
};
},
algorithmCalcPoints: function (
directionChange, last, group, childrenArea
) {
var pX,
pY,
pW,
pH,
gW = group.lW,
gH = group.lH,
plot = group.plot,
keep,
i = 0,
end = group.elArr.length - 1;
if (last) {
gW = group.nW;
gH = group.nH;
} else {
keep = group.elArr[group.elArr.length - 1];
}
group.elArr.forEach(function (p) {
if (last || (i < end)) {
if (group.direction === 0) {
pX = plot.x;
pY = plot.y;
pW = gW;
pH = p / pW;
} else {
pX = plot.x;
pY = plot.y;
pH = gH;
pW = p / pH;
}
childrenArea.push({
x: pX,
y: pY,
width: pW,
height: H.correctFloat(pH)
});
if (group.direction === 0) {
plot.y = plot.y + pH;
} else {
plot.x = plot.x + pW;
}
}
i = i + 1;
});
// Reset variables
group.reset();
if (group.direction === 0) {
group.width = group.width - gW;
} else {
group.height = group.height - gH;
}
plot.y = plot.parent.y + (plot.parent.height - group.height);
plot.x = plot.parent.x + (plot.parent.width - group.width);
if (directionChange) {
group.direction = 1 - group.direction;
}
// If not last, then add uncalculated element
if (!last) {
group.addElement(keep);
}
},
algorithmLowAspectRatio: function (directionChange, parent, children) {
var childrenArea = [],
series = this,
pTot,
plot = {
x: parent.x,
y: parent.y,
parent: parent
},
direction = parent.direction,
i = 0,
end = children.length - 1,
group = new this.algorithmGroup( // eslint-disable-line new-cap
parent.height,
parent.width,
direction,
plot
);
// Loop through and calculate all areas
children.forEach(function (child) {
pTot =
(parent.width * parent.height) * (child.val / parent.val);
group.addElement(pTot);
if (group.lP.nR > group.lP.lR) {
series.algorithmCalcPoints(
directionChange,
false,
group,
childrenArea,
plot
);
}
// If last child, then calculate all remaining areas
if (i === end) {
series.algorithmCalcPoints(
directionChange,
true,
group,
childrenArea,
plot
);
}
i = i + 1;
});
return childrenArea;
},
algorithmFill: function (directionChange, parent, children) {
var childrenArea = [],
pTot,
direction = parent.direction,
x = parent.x,
y = parent.y,
width = parent.width,
height = parent.height,
pX,
pY,
pW,
pH;
children.forEach(function (child) {
pTot =
(parent.width * parent.height) * (child.val / parent.val);
pX = x;
pY = y;
if (direction === 0) {
pH = height;
pW = pTot / pH;
width = width - pW;
x = x + pW;
} else {
pW = width;
pH = pTot / pW;
height = height - pH;
y = y + pH;
}
childrenArea.push({
x: pX,
y: pY,
width: pW,
height: pH
});
if (directionChange) {
direction = 1 - direction;
}
});
return childrenArea;
},
strip: function (parent, children) {
return this.algorithmLowAspectRatio(false, parent, children);
},
squarified: function (parent, children) {
return this.algorithmLowAspectRatio(true, parent, children);
},
sliceAndDice: function (parent, children) {
return this.algorithmFill(true, parent, children);
},
stripes: function (parent, children) {
return this.algorithmFill(false, parent, children);
},
translate: function () {
var series = this,
options = series.options,
// NOTE: updateRootId modifies series.
rootId = updateRootId(series),
rootNode,
pointValues,
seriesArea,
tree,
val;
// Call prototype function
Series.prototype.translate.call(series);
// @todo Only if series.isDirtyData is true
tree = series.tree = series.getTree();
rootNode = series.nodeMap[rootId];
series.renderTraverseUpButton(rootId);
series.mapOptionsToLevel = getLevelOptions({
from: rootNode.level + 1,
levels: options.levels,
to: tree.height,
defaults: {
levelIsConstant: series.options.levelIsConstant,
colorByPoint: options.colorByPoint
}
});
if (
rootId !== '' &&
(!rootNode || !rootNode.children.length)
) {
series.setRootNode('', false);
rootId = series.rootNode;
rootNode = series.nodeMap[rootId];
}
// Parents of the root node is by default visible
recursive(series.nodeMap[series.rootNode], function (node) {
var next = false,
p = node.parent;
node.visible = true;
if (p || p === '') {
next = series.nodeMap[p];
}
return next;
});
// Children of the root node is by default visible
recursive(
series.nodeMap[series.rootNode].children,
function (children) {
var next = false;
children.forEach(function (child) {
child.visible = true;
if (child.children.length) {
next = (next || []).concat(child.children);
}
});
return next;
}
);
series.setTreeValues(tree);
// Calculate plotting values.
series.axisRatio = (series.xAxis.len / series.yAxis.len);
series.nodeMap[''].pointValues = pointValues =
{ x: 0, y: 0, width: 100, height: 100 };
series.nodeMap[''].values = seriesArea = merge(pointValues, {
width: (pointValues.width * series.axisRatio),
direction: (
options.layoutStartingDirection === 'vertical' ? 0 : 1
),
val: tree.val
});
series.calculateChildrenAreas(tree, seriesArea);
// Logic for point colors
if (series.colorAxis) {
series.translateColors();
} else if (!options.colorByPoint) {
series.setColorRecursive(series.tree);
}
// Update axis extremes according to the root node.
if (options.allowTraversingTree) {
val = rootNode.pointValues;
series.xAxis.setExtremes(val.x, val.x + val.width, false);
series.yAxis.setExtremes(val.y, val.y + val.height, false);
series.xAxis.setScale();
series.yAxis.setScale();
}
// Assign values to points.
series.setPointValues();
},
/**
* Extend drawDataLabels with logic to handle custom options related to
* the treemap series:
*
* - Points which is not a leaf node, has dataLabels disabled by
* default.
*
* - Options set on series.levels is merged in.
*
* - Width of the dataLabel is set to match the width of the point
* shape.
*
* @private
* @function Highcharts.Series#drawDataLabels
*/
drawDataLabels: function () {
var series = this,
mapOptionsToLevel = series.mapOptionsToLevel,
points = series.points.filter(function (n) {
return n.node.visible;
}),
options,
level;
points.forEach(function (point) {
level = mapOptionsToLevel[point.node.level];
// Set options to new object to avoid problems with scope
options = { style: {} };
// If not a leaf, then label should be disabled as default
if (!point.node.isLeaf) {
options.enabled = false;
}
// If options for level exists, include them as well
if (level && level.dataLabels) {
options = merge(options, level.dataLabels);
series._hasPointLabels = true;
}
// Set dataLabel width to the width of the point shape.
if (point.shapeArgs) {
options.style.width = point.shapeArgs.width;
if (point.dataLabel) {
point.dataLabel.css({
width: point.shapeArgs.width + 'px'
});
}
}
// Merge custom options with point options
point.dlOptions = merge(options, point.options.dataLabels);
});
Series.prototype.drawDataLabels.call(this);
},
// Over the alignment method by setting z index
alignDataLabel: function (point, dataLabel, labelOptions) {
var style = labelOptions.style;
// #8160: Prevent the label from exceeding the point's
// boundaries in treemaps by applying ellipsis overflow.
// The issue was happening when datalabel's text contained a
// long sequence of characters without a whitespace.
if (
!H.defined(style.textOverflow) &&
dataLabel.text &&
dataLabel.getBBox().width > dataLabel.text.textWidth
) {
dataLabel.css({
textOverflow: 'ellipsis',
// unit (px) is required when useHTML is true
width: style.width += 'px'
});
}
seriesTypes.column.prototype.alignDataLabel.apply(this, arguments);
if (point.dataLabel) {
// point.node.zIndex could be undefined (#6956)
point.dataLabel.attr({ zIndex: (point.node.zIndex || 0) + 1 });
}
},
// Get presentational attributes
pointAttribs: function (point, state) {
var series = this,
mapOptionsToLevel = (
isObject(series.mapOptionsToLevel) ?
series.mapOptionsToLevel :
{}
),
level = point && mapOptionsToLevel[point.node.level] || {},
options = this.options,
attr,
stateOptions = (state && options.states[state]) || {},
className = (point && point.getClassName()) || '',
opacity;
// Set attributes by precedence. Point trumps level trumps series.
// Stroke width uses pick because it can be 0.
attr = {
'stroke':
(point && point.borderColor) ||
level.borderColor ||
stateOptions.borderColor ||
options.borderColor,
'stroke-width': pick(
point && point.borderWidth,
level.borderWidth,
stateOptions.borderWidth,
options.borderWidth
),
'dashstyle':
(point && point.borderDashStyle) ||
level.borderDashStyle ||
stateOptions.borderDashStyle ||
options.borderDashStyle,
'fill': (point && point.color) || this.color
};
// Hide levels above the current view
if (className.indexOf('highcharts-above-level') !== -1) {
attr.fill = 'none';
attr['stroke-width'] = 0;
// Nodes with children that accept interaction
} else if (
className.indexOf('highcharts-internal-node-interactive') !== -1
) {
opacity = pick(stateOptions.opacity, options.opacity);
attr.fill = color(attr.fill).setOpacity(opacity).get();
attr.cursor = 'pointer';
// Hide nodes that have children
} else if (className.indexOf('highcharts-internal-node') !== -1) {
attr.fill = 'none';
} else if (state) {
// Brighten and hoist the hover nodes
attr.fill = color(attr.fill)
.brighten(stateOptions.brightness)
.get();
}
return attr;
},
// Override drawPoints
drawPoints: function () {
var series = this,
chart = series.chart,
renderer = chart.renderer,
points = series.points,
styledMode = chart.styledMode,
options = series.options,
shadow = styledMode ? {} : options.shadow,
borderRadius = options.borderRadius,
withinAnimationLimit =
chart.pointCount < options.animationLimit,
allowTraversingTree = options.allowTraversingTree;
points.forEach(function (point) {
var levelDynamic = point.node.levelDynamic,
animate = {},
attr = {},
css = {},
groupKey = 'level-group-' + levelDynamic,
hasGraphic = !!point.graphic,
shouldAnimate = withinAnimationLimit && hasGraphic,
shapeArgs = point.shapeArgs;
// Don't bother with calculate styling if the point is not drawn
if (point.shouldDraw()) {
if (borderRadius) {
attr.r = borderRadius;
}
merge(
true, // Extend object
// Which object to extend
shouldAnimate ? animate : attr,
// Add shapeArgs to animate/attr if graphic exists
hasGraphic ? shapeArgs : {},
// Add style attribs if !styleMode
styledMode ?
{} :
series.pointAttribs(
point, point.selected && 'select'
)
);
// In styled mode apply point.color. Use CSS, otherwise the
// fill used in the style sheet will take precedence over
// the fill attribute.
if (series.colorAttribs && styledMode) {
// Heatmap is loaded
extend(css, series.colorAttribs(point));
}
if (!series[groupKey]) {
series[groupKey] = renderer.g(groupKey)
.attr({
// @todo Set the zIndex based upon the number of
// levels, instead of using 1000
zIndex: 1000 - levelDynamic
})
.add(series.group);
}
}
// Draw the point
point.draw({
animatableAttribs: animate,
attribs: attr,
css: css,
group: series[groupKey],
renderer: renderer,
shadow: shadow,
shapeArgs: shapeArgs,
shapeType: 'rect'
});
// If setRootNode is allowed, set a point cursor on clickables &
// add drillId to point
if (allowTraversingTree && point.graphic) {
point.drillId = options.interactByLeaf ?
series.drillToByLeaf(point) :
series.drillToByGroup(point);
}
});
},
// Add drilling on the suitable points
onClickDrillToNode: function (event) {
var series = this,
point = event.point,
drillId = point && point.drillId;
// If a drill id is returned, add click event and cursor.
if (isString(drillId)) {
point.setState(''); // Remove hover
series.setRootNode(drillId, true, { trigger: 'click' });
}
},
/**
* Finds the drill id for a parent node. Returns false if point should
* not have a click event.
*
* @private
* @function Highcharts.Series#drillToByGroup
*
* @param {object} point
*
* @return {boolean|string}
* Drill to id or false when point should not have a click
* event.
*/
drillToByGroup: function (point) {
var series = this,
drillId = false;
if ((point.node.level - series.nodeMap[series.rootNode].level) ===
1 &&
!point.node.isLeaf
) {
drillId = point.id;
}
return drillId;
},
/**
* Finds the drill id for a leaf node. Returns false if point should not
* have a click event
*
* @private
* @function Highcharts.Series#drillToByLeaf
*
* @param {object} point
*
* @return {boolean|string}
* Drill to id or false when point should not have a click
* event.
*/
drillToByLeaf: function (point) {
var series = this,
drillId = false,
nodeParent;
if ((point.node.parent !== series.rootNode) &&
point.node.isLeaf
) {
nodeParent = point.node;
while (!drillId) {
nodeParent = series.nodeMap[nodeParent.parent];
if (nodeParent.parent === series.rootNode) {
drillId = nodeParent.id;
}
}
}
return drillId;
},
drillUp: function () {
var series = this,
node = series.nodeMap[series.rootNode];
if (node && isString(node.parent)) {
series.setRootNode(
node.parent,
true,
{ trigger: 'traverseUpButton' }
);
}
},
// TODO remove this function at a suitable version.
drillToNode: function (id, redraw) {
error(
'WARNING: treemap.drillToNode has been renamed to treemap.' +
'setRootNode, and will be removed in the next major version.'
);
this.setRootNode(id, redraw);
},
/**
* Sets a new root node for the series.
*
* @private
* @function Highcharts.Series#setRootNode
*
* @param {string} id The id of the new root node.
* @param {boolean} [redraw=true] Wether to redraw the chart or not.
* @param {object} [eventArguments] Arguments to be accessed in
* event handler.
* @param {string} [eventArguments.newRootId] Id of the new root.
* @param {string} [eventArguments.previousRootId] Id of the previous
* root.
* @param {boolean} [eventArguments.redraw] Wether to redraw the
* chart after.
* @param {object} [eventArguments.series] The series to update the root
* of.
* @param {string} [eventArguments.trigger] The action which
* triggered the event. Undefined if the setRootNode is called
* directly.
*/
setRootNode: function (id, redraw, eventArguments) {
var series = this,
eventArgs = extend({
newRootId: id,
previousRootId: series.rootNode,
redraw: pick(redraw, true),
series: series
}, eventArguments);
/**
* The default functionality of the setRootNode event.
*
* @private
* @param {object} args The event arguments.
* @param {string} args.newRootId Id of the new root.
* @param {string} args.previousRootId Id of the previous root.
* @param {boolean} args.redraw Wether to redraw the chart after.
* @param {object} args.series The series to update the root of.
* @param {string} [args.trigger=undefined] The action which
* triggered the event. Undefined if the setRootNode is called
* directly.
*/
var defaultFn = function (args) {
var series = args.series;
// Store previous and new root ids on the series.
series.idPreviousRoot = args.previousRootId;
series.rootNode = args.newRootId;
// Redraw the chart
series.isDirty = true; // Force redraw
if (args.redraw) {
series.chart.redraw();
}
};
// Fire setRootNode event.
fireEvent(series, 'setRootNode', eventArgs, defaultFn);
},
renderTraverseUpButton: function (rootId) {
var series = this,
nodeMap = series.nodeMap,
node = nodeMap[rootId],
name = node.name,
buttonOptions = series.options.traverseUpButton,
backText = pick(buttonOptions.text, name, '< Back'),
attr,
states;
if (rootId === '') {
if (series.drillUpButton) {
series.drillUpButton = series.drillUpButton.destroy();
}
} else if (!this.drillUpButton) {
attr = buttonOptions.theme;
states = attr && attr.states;
this.drillUpButton = this.chart.renderer.button(
backText,
null,
null,
function () {
series.drillUp();
},
attr,
states && states.hover,
states && states.select
)
.addClass('highcharts-drillup-button')
.attr({
align: buttonOptions.position.align,
zIndex: 7
})
.add()
.align(
buttonOptions.position,
false,
buttonOptions.relativeTo || 'plotBox'
);
} else {
this.drillUpButton.placed = false;
this.drillUpButton.attr({
text: backText
})
.align();
}
},
buildKDTree: noop,
drawLegendSymbol: H.LegendSymbolMixin.drawRectangle,
getExtremes: function () {
// Get the extremes from the value data
Series.prototype.getExtremes.call(this, this.colorValueData);
this.valueMin = this.dataMin;
this.valueMax = this.dataMax;
// Get the extremes from the y data
Series.prototype.getExtremes.call(this);
},
getExtremesFromAll: true,
bindAxes: function () {
var treeAxis = {
endOnTick: false,
gridLineWidth: 0,
lineWidth: 0,
min: 0,
dataMin: 0,
minPadding: 0,
max: 100,
dataMax: 100,
maxPadding: 0,
startOnTick: false,
title: null,
tickPositions: []
};
Series.prototype.bindAxes.call(this);
H.extend(this.yAxis.options, treeAxis);
H.extend(this.xAxis.options, treeAxis);
},
/**
* Workaround for `inactive` state. Since `series.opacity` option is
* already reserved, don't use that state at all by disabling
* `inactiveOtherPoints` and not inheriting states by points.
*
* @private
*/
setState: function (state) {
this.options.inactiveOtherPoints = true;
Series.prototype.setState.call(this, state, false);
this.options.inactiveOtherPoints = false;
},
utils: {
recursive: recursive
}
// Point class
}, {
draw: drawPoint,
getClassName: function () {
var className = H.Point.prototype.getClassName.call(this),
series = this.series,
options = series.options;
// Above the current level
if (this.node.level <= series.nodeMap[series.rootNode].level) {
className += ' highcharts-above-level';
} else if (
!this.node.isLeaf &&
!pick(options.interactByLeaf, !options.allowTraversingTree)
) {
className += ' highcharts-internal-node-interactive';
} else if (!this.node.isLeaf) {
className += ' highcharts-internal-node';
}
return className;
},
/**
* A tree point is valid if it has han id too, assume it may be a parent
* item.
*
* @private
* @function Highcharts.Point#isValid
*/
isValid: function () {
return this.id || isNumber(this.value);
},
setState: function (state) {
H.Point.prototype.setState.call(this, state);
// Graphic does not exist when point is not visible.
if (this.graphic) {
this.graphic.attr({
zIndex: state === 'hover' ? 1 : 0
});
}
},
setVisible: seriesTypes.pie.prototype.pointClass.prototype.setVisible,
shouldDraw: function () {
var point = this;
return isNumber(point.plotY) && point.y !== null;
}
}
);
/**
* A `treemap` series. If the [type](#series.treemap.type) option is
* not specified, it is inherited from [chart.type](#chart.type).
*
* @extends series,plotOptions.treemap
* @excluding dataParser, dataURL, stack
* @product highcharts
* @apioption series.treemap
*/
/**
* An array of data points for the series. For the `treemap` series
* type, points can be given in the following ways:
*
* 1. An array of numerical values. In this case, the numerical values will be
* interpreted as `value` options. Example:
* ```js
* data: [0, 5, 3, 5]
* ```
*
* 2. An array of objects with named values. The following snippet shows only a
* few settings, see the complete options set below. If the total number of
* data points exceeds the series'
* [turboThreshold](#series.treemap.turboThreshold),
* this option is not available.
* ```js
* data: [{
* value: 9,
* name: "Point2",
* color: "#00FF00"
* }, {
* value: 6,
* name: "Point1",
* color: "#FF00FF"
* }]
* ```
*
* @sample {highcharts} highcharts/chart/reflow-true/
* Numerical values
* @sample {highcharts} highcharts/series/data-array-of-objects/
* Config objects
*
* @type {Array<number|null|*>}
* @extends series.heatmap.data
* @excluding x, y
* @product highcharts
* @apioption series.treemap.data
*/
/**
* The value of the point, resulting in a relative area of the point
* in the treemap.
*
* @type {number|null}
* @product highcharts
* @apioption series.treemap.data.value
*/
/**
* Serves a purpose only if a `colorAxis` object is defined in the chart
* options. This value will decide which color the point gets from the
* scale of the colorAxis.
*
* @type {number}
* @since 4.1.0
* @product highcharts
* @apioption series.treemap.data.colorValue
*/
/**
* Only for treemap. Use this option to build a tree structure. The
* value should be the id of the point which is the parent. If no points
* has a matching id, or this option is undefined, then the parent will
* be set to the root.
*
* @sample {highcharts} highcharts/point/parent/
* Point parent
* @sample {highcharts} highcharts/demo/treemap-with-levels/
* Example where parent id is not matching
*
* @type {string}
* @since 4.1.0
* @product highcharts
* @apioption series.treemap.data.parent
*/