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/* *
*
* (c) 2019 Torstein Honsi
*
* Item series type for Highcharts
*
* License: www.highcharts.com/license
*
* */
'use strict';
import H from '../parts/Globals.js';
import '../parts/Utilities.js';
import '../parts/Series.js';
var extend = H.extend,
merge = H.merge,
piePoint = H.seriesTypes.pie.prototype.pointClass.prototype;
/**
* The item series type.
*
* @requires module:modules/item-series
*
* @private
* @class
* @name Highcharts.seriesTypes.item
*
* @augments Highcharts.seriesTypes.pie
*/
H.seriesType(
'item',
// Inherits pie as the most tested non-cartesian series with individual
// point legend, tooltips etc. Only downside is we need to re-enable
// marker options.
'pie',
/**
* An item chart is an infographic chart where a number of items are laid
* out in either a rectangular or circular pattern. It can be used to
* visualize counts within a group, or for the circular pattern, typically
* a parliament.
*
* The circular layout has much in common with a pie chart. Many of the item
* series options, like `center`, `size` and data label positioning, are
* inherited from the pie series and don't apply for rectangular layouts.
*
* @sample highcharts/demo/parliament-chart
* Parliament chart (circular item chart)
* @sample highcharts/series-item/rectangular
* Rectangular item chart
* @sample highcharts/series-item/symbols
* Infographic with symbols
*
* @extends plotOptions.pie
* @since 7.1.0
* @product highcharts
* @excluding borderColor, borderWidth, depth, dragDrop, linecap, shadow,
* slicedOffset
* @optionparent plotOptions.item
*/
{
/**
* In circular view, the end angle of the item layout, in degrees where
* 0 is up.
*
* @sample highcharts/demo/parliament-chart
* Parliament chart
* @type {undefined|number}
*/
endAngle: undefined,
/**
* In circular view, the size of the inner diameter of the circle. Can
* be a percentage or pixel value. Percentages are relative to the outer
* perimeter. Pixel values are given as integers.
*
* If the `rows` option is set, it overrides the `innerSize` setting.
*
* @sample highcharts/demo/parliament-chart
* Parliament chart
* @type {string|number}
*/
innerSize: '40%',
/**
* The padding between the items, given in relative size where the size
* of the item is 1.
* @type {number}
*/
itemPadding: 0.1,
/**
* The layout of the items in rectangular view. Can be either
* `horizontal` or `vertical`.
* @sample highcharts/series-item/symbols
* Horizontal layout
* @type {string}
*/
layout: 'vertical',
/**
* @extends plotOptions.line.marker
*/
marker: merge(
H.defaultOptions.plotOptions.line.marker,
{
radius: null
}
),
/**
* The number of rows to display in the rectangular or circular view. If
* the `innerSize` is set, it will be overridden by the `rows` setting.
*
* @sample highcharts/series-item/rows-columns
* Fixed row count
* @type {number}
*/
rows: undefined,
showInLegend: true,
/**
* In circular view, the start angle of the item layout, in degrees
* where 0 is up.
*
* @sample highcharts/demo/parliament-chart
* Parliament chart
* @type {undefined|number}
*/
startAngle: undefined
},
// Prototype members
{
translate: function () {
if (!this.slots) {
this.slots = [];
}
if (
H.isNumber(this.options.startAngle) &&
H.isNumber(this.options.endAngle)
) {
H.seriesTypes.pie.prototype.translate.call(this);
this.slots = this.getSlots();
} else {
this.generatePoints();
}
},
// Get the semi-circular slots
getSlots: function () {
var center = this.center,
diameter = center[2],
innerSize = center[3],
row,
slots = this.slots,
x,
y,
rowRadius,
rowLength,
colCount,
increment,
angle,
col,
itemSize = 0,
rowCount,
fullAngle = this.endAngleRad - this.startAngleRad,
itemCount = Number.MAX_VALUE,
finalItemCount,
rows,
testRows,
rowsOption = this.options.rows,
// How many rows (arcs) should be used
rowFraction = (diameter - innerSize) / diameter;
// Increase the itemSize until we find the best fit
while (itemCount > this.total) {
finalItemCount = itemCount;
// Reset
slots.length = 0;
itemCount = 0;
// Now rows is the last successful run
rows = testRows;
testRows = [];
itemSize++;
// Total number of rows (arcs) from the center to the
// perimeter
rowCount = diameter / itemSize / 2;
if (rowsOption) {
innerSize = ((rowCount - rowsOption) / rowCount) * diameter;
if (innerSize >= 0) {
rowCount = rowsOption;
// If innerSize is negative, we are trying to set too
// many rows in the rows option, so fall back to
// treating it as innerSize 0
} else {
innerSize = 0;
rowFraction = 1;
}
} else {
rowCount = Math.floor(rowCount * rowFraction);
}
for (row = rowCount; row > 0; row--) {
rowRadius = (innerSize + (row / rowCount) *
(diameter - innerSize - itemSize)) / 2;
rowLength = fullAngle * rowRadius;
colCount = Math.ceil(rowLength / itemSize);
testRows.push({
rowRadius: rowRadius,
rowLength: rowLength,
colCount: colCount
});
itemCount += colCount + 1;
}
}
if (!rows) {
return;
}
// We now have more slots than we have total items. Loop over
// the rows and remove the last slot until the count is correct.
// For each iteration we sort the last slot by the angle, and
// remove those with the highest angles.
var overshoot = finalItemCount - this.total;
function cutOffRow(item) {
if (overshoot > 0) {
item.row.colCount--;
overshoot--;
}
}
while (overshoot > 0) {
rows
// Return a simplified representation of the angle of
// the last slot within each row.
.map(function (row) {
return {
angle: row.colCount / row.rowLength,
row: row
};
})
// Sort by the angles...
.sort(function (a, b) {
return b.angle - a.angle;
})
// ...so that we can ignore the items with the lowest
// angles...
.slice(
0,
Math.min(overshoot, Math.ceil(rows.length / 2))
)
// ...and remove the ones with the highest angles
.forEach(cutOffRow);
}
rows.forEach(function (row) {
var rowRadius = row.rowRadius,
colCount = row.colCount;
increment = colCount ? fullAngle / colCount : 0;
for (col = 0; col <= colCount; col += 1) {
angle = this.startAngleRad + col * increment;
x = center[0] + Math.cos(angle) * rowRadius;
y = center[1] + Math.sin(angle) * rowRadius;
slots.push({ x: x, y: y, angle: angle });
}
}, this);
// Sort by angle
slots.sort(function (a, b) {
return a.angle - b.angle;
});
this.itemSize = itemSize;
return slots;
},
getRows: function () {
var rows = this.options.rows,
cols,
ratio;
// Get the row count that gives the most square cells
if (!rows) {
ratio = this.chart.plotWidth / this.chart.plotHeight;
rows = Math.sqrt(this.total);
if (ratio > 1) {
rows = Math.ceil(rows);
while (rows > 0) {
cols = this.total / rows;
if (cols / rows > ratio) {
break;
}
rows--;
}
} else {
rows = Math.floor(rows);
while (rows < this.total) {
cols = this.total / rows;
if (cols / rows < ratio) {
break;
}
rows++;
}
}
}
return rows;
},
drawPoints: function () {
var series = this,
options = this.options,
renderer = series.chart.renderer,
seriesMarkerOptions = options.marker,
borderWidth = this.borderWidth,
crisp = borderWidth % 2 ? 0.5 : 1,
i = 0,
rows = this.getRows(),
cols = Math.ceil(this.total / rows),
cellWidth = this.chart.plotWidth / cols,
cellHeight = this.chart.plotHeight / rows,
itemSize = this.itemSize || Math.min(cellWidth, cellHeight);
/*
this.slots.forEach(slot => {
this.chart.renderer.circle(slot.x, slot.y, 6)
.attr({
fill: 'silver'
})
.add(this.group);
});
//*/
this.points.forEach(function (point) {
var attr,
graphics,
pointAttr,
pointMarkerOptions = point.marker || {},
symbol = (
pointMarkerOptions.symbol ||
seriesMarkerOptions.symbol
),
r = H.pick(
pointMarkerOptions.radius,
seriesMarkerOptions.radius
),
size = H.defined(r) ? 2 * r : itemSize,
padding = size * options.itemPadding,
x,
y,
width,
height;
point.graphics = graphics = point.graphics || {};
if (!series.chart.styledMode) {
pointAttr = series.pointAttribs(
point,
point.selected && 'select'
);
}
if (!point.isNull && point.visible) {
if (!point.graphic) {
point.graphic = renderer.g('point')
.add(series.group);
}
for (var val = 0; val < point.y; val++) {
// Semi-circle
if (series.center && series.slots) {
// Fill up the slots from left to right
var slot = series.slots.shift();
x = slot.x - itemSize / 2;
y = slot.y - itemSize / 2;
} else if (options.layout === 'horizontal') {
x = cellWidth * (i % cols);
y = cellHeight * Math.floor(i / cols);
} else {
x = cellWidth * Math.floor(i / rows);
y = cellHeight * (i % rows);
}
x += padding;
y += padding;
width = Math.round(size - 2 * padding);
height = width;
if (series.options.crisp) {
x = Math.round(x) - crisp;
y = Math.round(y) + crisp;
}
attr = {
x: x,
y: y,
width: width,
height: height
};
if (r !== undefined) {
attr.r = r;
}
if (graphics[val]) {
graphics[val].animate(attr);
} else {
graphics[val] = renderer
.symbol(
symbol,
null,
null,
null,
null, {
backgroundSize: 'within'
}
)
.attr(extend(attr, pointAttr))
.add(point.graphic);
}
graphics[val].isActive = true;
i++;
}
}
H.objectEach(graphics, function (graphic, key) {
if (!graphic.isActive) {
graphic.destroy();
delete graphics[key];
} else {
graphic.isActive = false;
}
});
});
},
drawDataLabels: function () {
if (this.center && this.slots) {
H.seriesTypes.pie.prototype.drawDataLabels.call(this);
// else, it's just a dot chart with no natural place to put the
// data labels
} else {
this.points.forEach(function (point) {
point.destroyElements({ dataLabel: 1 });
});
}
},
// Fade in the whole chart
animate: function (init) {
if (init) {
this.group.attr({
opacity: 0
});
} else {
this.group.animate({
opacity: 1
}, this.options.animation);
this.animate = null;
}
}
},
// Point class
{
connectorShapes: piePoint.connectorShapes,
getConnectorPath: piePoint.getConnectorPath,
setVisible: piePoint.setVisible,
getTranslate: piePoint.getTranslate
}
);
/**
* An `item` series. If the [type](#series.item.type) option is not specified,
* it is inherited from [chart.type](#chart.type).
*
* @extends series,plotOptions.item
* @excluding dataParser, dataURL, stack, xAxis, yAxis
* @product highcharts
* @apioption series.item
*/
/**
* An array of data points for the series. For the `item` 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 `y` 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.item.turboThreshold),
* this option is not available.
* ```js
* data: [{
* y: 1,
* name: "Point2",
* color: "#00FF00"
* }, {
* y: 7,
* name: "Point1",
* color: "#FF00FF"
* }]
* ```
*
* @sample {highcharts} highcharts/chart/reflow-true/
* Numerical values
* @sample {highcharts} highcharts/series/data-array-of-arrays/
* Arrays of numeric x and y
* @sample {highcharts} highcharts/series/data-array-of-arrays-datetime/
* Arrays of datetime x and y
* @sample {highcharts} highcharts/series/data-array-of-name-value/
* Arrays of point.name and y
* @sample {highcharts} highcharts/series/data-array-of-objects/
* Config objects
*
* @type {Array<number|Array<string,(number|null)>|null|*>}
* @extends series.pie.data
* @excludes sliced
* @product highcharts
* @apioption series.item.data
*/
/**
* The sequential index of the data point in the legend.
*
* @type {number}
* @product highcharts
* @apioption series.pie.data.legendIndex
*/