File: /var/www/quadcode/frontend/node_modules/highcharts/es-modules/Series/Pie/PieDataLabel.js
/* *
*
* (c) 2010-2021 Torstein Honsi
*
* License: www.highcharts.com/license
*
* !!!!!!! SOURCE GETS TRANSPILED BY TYPESCRIPT. EDIT TS FILE ONLY. !!!!!!!
*
* */
'use strict';
import DataLabel from '../../Core/Series/DataLabel.js';
import H from '../../Core/Globals.js';
var noop = H.noop;
import R from '../../Core/Renderer/RendererUtilities.js';
var distribute = R.distribute;
import SeriesRegistry from '../../Core/Series/SeriesRegistry.js';
var Series = SeriesRegistry.series;
import U from '../../Core/Utilities.js';
var arrayMax = U.arrayMax, clamp = U.clamp, defined = U.defined, merge = U.merge, pick = U.pick, relativeLength = U.relativeLength;
/* *
*
* Composition
*
* */
var ColumnDataLabel;
(function (ColumnDataLabel) {
/* *
*
* Constants
*
* */
var composedClasses = [];
var dataLabelPositioners = {
// Based on the value computed in Highcharts' distribute algorithm.
radialDistributionY: function (point) {
return point.top + point.distributeBox.pos;
},
// get the x - use the natural x position for labels near the
// top and bottom, to prevent the top and botton slice
// connectors from touching each other on either side
// Based on the value computed in Highcharts' distribute algorithm.
radialDistributionX: function (series, point, y, naturalY) {
return series.getX(y < point.top + 2 || y > point.bottom - 2 ?
naturalY :
y, point.half, point);
},
// dataLabels.distance determines the x position of the label
justify: function (point, radius, seriesCenter) {
return seriesCenter[0] + (point.half ? -1 : 1) *
(radius + point.labelDistance);
},
// Left edges of the left-half labels touch the left edge of the plot
// area. Right edges of the right-half labels touch the right edge of
// the plot area.
alignToPlotEdges: function (dataLabel, half, plotWidth, plotLeft) {
var dataLabelWidth = dataLabel.getBBox().width;
return half ? dataLabelWidth + plotLeft :
plotWidth - dataLabelWidth - plotLeft;
},
// Connectors of each side end in the same x position. Labels are
// aligned to them. Left edge of the widest left-half label touches the
// left edge of the plot area. Right edge of the widest right-half label
// touches the right edge of the plot area.
alignToConnectors: function (points, half, plotWidth, plotLeft) {
var maxDataLabelWidth = 0, dataLabelWidth;
// find widest data label
points.forEach(function (point) {
dataLabelWidth = point.dataLabel.getBBox().width;
if (dataLabelWidth > maxDataLabelWidth) {
maxDataLabelWidth = dataLabelWidth;
}
});
return half ? maxDataLabelWidth + plotLeft :
plotWidth - maxDataLabelWidth - plotLeft;
}
};
/* *
*
* Functions
*
* */
/* eslint-disable valid-jsdoc */
/** @private */
function compose(PieSeriesClass) {
DataLabel.compose(Series);
if (composedClasses.indexOf(PieSeriesClass) === -1) {
composedClasses.push(PieSeriesClass);
var pieProto = PieSeriesClass.prototype;
pieProto.dataLabelPositioners = dataLabelPositioners;
pieProto.alignDataLabel = noop;
pieProto.drawDataLabels = drawDataLabels;
pieProto.placeDataLabels = placeDataLabels;
pieProto.verifyDataLabelOverflow = verifyDataLabelOverflow;
}
}
ColumnDataLabel.compose = compose;
/**
* Override the base drawDataLabels method by pie specific functionality
* @private
*/
function drawDataLabels() {
var series = this, data = series.data, chart = series.chart, options = series.options.dataLabels || {}, connectorPadding = options.connectorPadding, plotWidth = chart.plotWidth, plotHeight = chart.plotHeight, plotLeft = chart.plotLeft, maxWidth = Math.round(chart.chartWidth / 3), seriesCenter = series.center, radius = seriesCenter[2] / 2, centerY = seriesCenter[1], halves = [
[],
[] // left
], overflow = [0, 0, 0, 0], // top, right, bottom, left
dataLabelPositioners = series.dataLabelPositioners;
var point, connectorWidth, connector, dataLabel, dataLabelWidth,
// labelPos,
labelPosition, labelHeight,
// divide the points into right and left halves for anti collision
x, y, visibility, j, pointDataLabelsOptions;
// get out if not enabled
if (!series.visible ||
(!options.enabled &&
!series._hasPointLabels)) {
return;
}
// Reset all labels that have been shortened
data.forEach(function (point) {
if (point.dataLabel && point.visible && point.dataLabel.shortened) {
point.dataLabel
.attr({
width: 'auto'
}).css({
width: 'auto',
textOverflow: 'clip'
});
point.dataLabel.shortened = false;
}
});
// run parent method
Series.prototype.drawDataLabels.apply(series);
data.forEach(function (point) {
if (point.dataLabel) {
if (point.visible) { // #407, #2510
// Arrange points for detection collision
halves[point.half].push(point);
// Reset positions (#4905)
point.dataLabel._pos = null;
// Avoid long labels squeezing the pie size too far down
if (!defined(options.style.width) &&
!defined(point.options.dataLabels &&
point.options.dataLabels.style &&
point.options.dataLabels.style.width)) {
if (point.dataLabel.getBBox().width > maxWidth) {
point.dataLabel.css({
// Use a fraction of the maxWidth to avoid
// wrapping close to the end of the string.
width: Math.round(maxWidth * 0.7) + 'px'
});
point.dataLabel.shortened = true;
}
}
}
else {
point.dataLabel = point.dataLabel.destroy();
// Workaround to make pies destroy multiple datalabels
// correctly. This logic needs rewriting to support multiple
// datalabels fully.
if (point.dataLabels && point.dataLabels.length === 1) {
delete point.dataLabels;
}
}
}
});
/* Loop over the points in each half, starting from the top and bottom
* of the pie to detect overlapping labels.
*/
halves.forEach(function (points, i) {
var length = points.length, positions = [];
var top, bottom, naturalY, sideOverflow, size, distributionLength;
if (!length) {
return;
}
// Sort by angle
series.sortByAngle(points, i - 0.5);
// Only do anti-collision when we have dataLabels outside the pie
// and have connectors. (#856)
if (series.maxLabelDistance > 0) {
top = Math.max(0, centerY - radius - series.maxLabelDistance);
bottom = Math.min(centerY + radius + series.maxLabelDistance, chart.plotHeight);
points.forEach(function (point) {
// check if specific points' label is outside the pie
if (point.labelDistance > 0 && point.dataLabel) {
// point.top depends on point.labelDistance value
// Used for calculation of y value in getX method
point.top = Math.max(0, centerY - radius - point.labelDistance);
point.bottom = Math.min(centerY + radius + point.labelDistance, chart.plotHeight);
size = point.dataLabel.getBBox().height || 21;
// point.positionsIndex is needed for getting index of
// parameter related to specific point inside positions
// array - not every point is in positions array.
point.distributeBox = {
target: point.labelPosition.natural.y -
point.top + size / 2,
size: size,
rank: point.y
};
positions.push(point.distributeBox);
}
});
distributionLength = bottom + size - top;
distribute(positions, distributionLength, distributionLength / 5);
}
// Now the used slots are sorted, fill them up sequentially
for (j = 0; j < length; j++) {
point = points[j];
// labelPos = point.labelPos;
labelPosition = point.labelPosition;
dataLabel = point.dataLabel;
visibility = point.visible === false ? 'hidden' : 'inherit';
naturalY = labelPosition.natural.y;
y = naturalY;
if (positions && defined(point.distributeBox)) {
if (typeof point.distributeBox.pos === 'undefined') {
visibility = 'hidden';
}
else {
labelHeight = point.distributeBox.size;
// Find label's y position
y = dataLabelPositioners
.radialDistributionY(point);
}
}
// It is needed to delete point.positionIndex for
// dynamically added points etc.
delete point.positionIndex; // @todo unused
// Find label's x position
// justify is undocumented in the API - preserve support for it
if (options.justify) {
x = dataLabelPositioners.justify(point, radius, seriesCenter);
}
else {
switch (options.alignTo) {
case 'connectors':
x = dataLabelPositioners.alignToConnectors(points, i, plotWidth, plotLeft);
break;
case 'plotEdges':
x = dataLabelPositioners.alignToPlotEdges(dataLabel, i, plotWidth, plotLeft);
break;
default:
x = dataLabelPositioners.radialDistributionX(series, point, y, naturalY);
}
}
// Record the placement and visibility
dataLabel._attr = {
visibility: visibility,
align: labelPosition.alignment
};
pointDataLabelsOptions = point.options.dataLabels || {};
dataLabel._pos = {
x: (x +
pick(pointDataLabelsOptions.x, options.x) + // (#12985)
({
left: connectorPadding,
right: -connectorPadding
}[labelPosition.alignment] || 0)),
// 10 is for the baseline (label vs text)
y: (y +
pick(pointDataLabelsOptions.y, options.y) - // (#12985)
10)
};
// labelPos.x = x;
// labelPos.y = y;
labelPosition.final.x = x;
labelPosition.final.y = y;
// Detect overflowing data labels
if (pick(options.crop, true)) {
dataLabelWidth = dataLabel.getBBox().width;
sideOverflow = null;
// Overflow left
if (x - dataLabelWidth < connectorPadding &&
i === 1 // left half
) {
sideOverflow = Math.round(dataLabelWidth - x + connectorPadding);
overflow[3] = Math.max(sideOverflow, overflow[3]);
// Overflow right
}
else if (x + dataLabelWidth > plotWidth - connectorPadding &&
i === 0 // right half
) {
sideOverflow = Math.round(x + dataLabelWidth - plotWidth + connectorPadding);
overflow[1] = Math.max(sideOverflow, overflow[1]);
}
// Overflow top
if (y - labelHeight / 2 < 0) {
overflow[0] = Math.max(Math.round(-y + labelHeight / 2), overflow[0]);
// Overflow left
}
else if (y + labelHeight / 2 > plotHeight) {
overflow[2] = Math.max(Math.round(y + labelHeight / 2 - plotHeight), overflow[2]);
}
dataLabel.sideOverflow = sideOverflow;
}
} // for each point
}); // for each half
// Do not apply the final placement and draw the connectors until we
// have verified that labels are not spilling over.
if (arrayMax(overflow) === 0 ||
this.verifyDataLabelOverflow(overflow)) {
// Place the labels in the final position
this.placeDataLabels();
this.points.forEach(function (point) {
// #8864: every connector can have individual options
pointDataLabelsOptions =
merge(options, point.options.dataLabels);
connectorWidth =
pick(pointDataLabelsOptions.connectorWidth, 1);
// Draw the connector
if (connectorWidth) {
var isNew = void 0;
connector = point.connector;
dataLabel = point.dataLabel;
if (dataLabel &&
dataLabel._pos &&
point.visible &&
point.labelDistance > 0) {
visibility = dataLabel._attr.visibility;
isNew = !connector;
if (isNew) {
point.connector = connector = chart.renderer
.path()
.addClass('highcharts-data-label-connector ' +
' highcharts-color-' + point.colorIndex +
(point.className ?
' ' + point.className :
''))
.add(series.dataLabelsGroup);
if (!chart.styledMode) {
connector.attr({
'stroke-width': connectorWidth,
'stroke': (pointDataLabelsOptions.connectorColor ||
point.color ||
"#666666" /* Palette.neutralColor60 */)
});
}
}
connector[isNew ? 'attr' : 'animate']({
d: point.getConnectorPath()
});
connector.attr('visibility', visibility);
}
else if (connector) {
point.connector = connector.destroy();
}
}
});
}
}
/**
* Perform the final placement of the data labels after we have verified
* that they fall within the plot area.
* @private
*/
function placeDataLabels() {
this.points.forEach(function (point) {
var dataLabel = point.dataLabel, _pos;
if (dataLabel && point.visible) {
_pos = dataLabel._pos;
if (_pos) {
// Shorten data labels with ellipsis if they still overflow
// after the pie has reached minSize (#223).
if (dataLabel.sideOverflow) {
dataLabel._attr.width =
Math.max(dataLabel.getBBox().width -
dataLabel.sideOverflow, 0);
dataLabel.css({
width: dataLabel._attr.width + 'px',
textOverflow: ((this.options.dataLabels.style || {})
.textOverflow ||
'ellipsis')
});
dataLabel.shortened = true;
}
dataLabel.attr(dataLabel._attr);
dataLabel[dataLabel.moved ? 'animate' : 'attr'](_pos);
dataLabel.moved = true;
}
else if (dataLabel) {
dataLabel.attr({ y: -9999 });
}
}
// Clear for update
delete point.distributeBox;
}, this);
}
/**
* Verify whether the data labels are allowed to draw, or we should run more
* translation and data label positioning to keep them inside the plot area.
* Returns true when data labels are ready to draw.
* @private
*/
function verifyDataLabelOverflow(overflow) {
var center = this.center, options = this.options, centerOption = options.center, minSize = options.minSize || 80, newSize = minSize,
// If a size is set, return true and don't try to shrink the pie
// to fit the labels.
ret = options.size !== null;
if (!ret) {
// Handle horizontal size and center
if (centerOption[0] !== null) { // Fixed center
newSize = Math.max(center[2] -
Math.max(overflow[1], overflow[3]), minSize);
}
else { // Auto center
newSize = Math.max(
// horizontal overflow
center[2] - overflow[1] - overflow[3], minSize);
// horizontal center
center[0] += (overflow[3] - overflow[1]) / 2;
}
// Handle vertical size and center
if (centerOption[1] !== null) { // Fixed center
newSize = clamp(newSize, minSize, center[2] - Math.max(overflow[0], overflow[2]));
}
else { // Auto center
newSize = clamp(newSize, minSize,
// vertical overflow
center[2] - overflow[0] - overflow[2]);
// vertical center
center[1] += (overflow[0] - overflow[2]) / 2;
}
// If the size must be decreased, we need to run translate and
// drawDataLabels again
if (newSize < center[2]) {
center[2] = newSize;
center[3] = Math.min(// #3632
options.thickness ?
Math.max(0, newSize - options.thickness * 2) :
Math.max(0, relativeLength(options.innerSize || 0, newSize)), newSize); // #6647
this.translate(center);
if (this.drawDataLabels) {
this.drawDataLabels();
}
// Else, return true to indicate that the pie and its labels is
// within the plot area
}
else {
ret = true;
}
}
return ret;
}
})(ColumnDataLabel || (ColumnDataLabel = {}));
/* *
*
* Default Export
*
* */
export default ColumnDataLabel;