File: /var/www/quadcode/frontend/node_modules/highcharts/es-modules/Gantt/Pathfinder.js
/* *
*
* (c) 2016 Highsoft AS
* Authors: Øystein Moseng, Lars A. V. Cabrera
*
* License: www.highcharts.com/license
*
* !!!!!!! SOURCE GETS TRANSPILED BY TYPESCRIPT. EDIT TS FILE ONLY. !!!!!!!
*
* */
'use strict';
import Connection from './Connection.js';
import Chart from '../Core/Chart/Chart.js';
import D from '../Core/Defaults.js';
var defaultOptions = D.defaultOptions;
import H from '../Core/Globals.js';
import Point from '../Core/Series/Point.js';
import U from '../Core/Utilities.js';
var addEvent = U.addEvent, defined = U.defined, error = U.error, extend = U.extend, merge = U.merge, pick = U.pick, splat = U.splat;
/**
* The default pathfinder algorithm to use for a chart. It is possible to define
* your own algorithms by adding them to the
* `Highcharts.Pathfinder.prototype.algorithms`
* object before the chart has been created.
*
* The default algorithms are as follows:
*
* `straight`: Draws a straight line between the connecting
* points. Does not avoid other points when drawing.
*
* `simpleConnect`: Finds a path between the points using right angles
* only. Takes only starting/ending points into
* account, and will not avoid other points.
*
* `fastAvoid`: Finds a path between the points using right angles
* only. Will attempt to avoid other points, but its
* focus is performance over accuracy. Works well with
* less dense datasets.
*
* @typedef {"fastAvoid"|"simpleConnect"|"straight"|string} Highcharts.PathfinderTypeValue
*/
''; // detach doclets above
import pathfinderAlgorithms from './PathfinderAlgorithms.js';
import '../Extensions/ArrowSymbols.js';
var max = Math.max, min = Math.min;
/*
@todo:
- Document how to write your own algorithms
- Consider adding a Point.pathTo method that wraps creating a connection
and rendering it
*/
// Set default Pathfinder options
extend(defaultOptions, {
/**
* The Pathfinder module allows you to define connections between any two
* points, represented as lines - optionally with markers for the start
* and/or end points. Multiple algorithms are available for calculating how
* the connecting lines are drawn.
*
* Connector functionality requires Highcharts Gantt to be loaded. In Gantt
* charts, the connectors are used to draw dependencies between tasks.
*
* @see [dependency](series.gantt.data.dependency)
*
* @sample gantt/pathfinder/demo
* Pathfinder connections
*
* @declare Highcharts.ConnectorsOptions
* @product gantt
* @optionparent connectors
*/
connectors: {
/**
* Enable connectors for this chart. Requires Highcharts Gantt.
*
* @type {boolean}
* @default true
* @since 6.2.0
* @apioption connectors.enabled
*/
/**
* Set the default dash style for this chart's connecting lines.
*
* @type {string}
* @default solid
* @since 6.2.0
* @apioption connectors.dashStyle
*/
/**
* Set the default color for this chart's Pathfinder connecting lines.
* Defaults to the color of the point being connected.
*
* @type {Highcharts.ColorString}
* @since 6.2.0
* @apioption connectors.lineColor
*/
/**
* Set the default pathfinder margin to use, in pixels. Some Pathfinder
* algorithms attempt to avoid obstacles, such as other points in the
* chart. These algorithms use this margin to determine how close lines
* can be to an obstacle. The default is to compute this automatically
* from the size of the obstacles in the chart.
*
* To draw connecting lines close to existing points, set this to a low
* number. For more space around existing points, set this number
* higher.
*
* @sample gantt/pathfinder/algorithm-margin
* Small algorithmMargin
*
* @type {number}
* @since 6.2.0
* @apioption connectors.algorithmMargin
*/
/**
* Set the default pathfinder algorithm to use for this chart. It is
* possible to define your own algorithms by adding them to the
* Highcharts.Pathfinder.prototype.algorithms object before the chart
* has been created.
*
* The default algorithms are as follows:
*
* `straight`: Draws a straight line between the connecting
* points. Does not avoid other points when drawing.
*
* `simpleConnect`: Finds a path between the points using right angles
* only. Takes only starting/ending points into
* account, and will not avoid other points.
*
* `fastAvoid`: Finds a path between the points using right angles
* only. Will attempt to avoid other points, but its
* focus is performance over accuracy. Works well with
* less dense datasets.
*
* Default value: `straight` is used as default for most series types,
* while `simpleConnect` is used as default for Gantt series, to show
* dependencies between points.
*
* @sample gantt/pathfinder/demo
* Different types used
*
* @type {Highcharts.PathfinderTypeValue}
* @default undefined
* @since 6.2.0
*/
type: 'straight',
/**
* Set the default pixel width for this chart's Pathfinder connecting
* lines.
*
* @since 6.2.0
*/
lineWidth: 1,
/**
* Marker options for this chart's Pathfinder connectors. Note that
* this option is overridden by the `startMarker` and `endMarker`
* options.
*
* @declare Highcharts.ConnectorsMarkerOptions
* @since 6.2.0
*/
marker: {
/**
* Set the radius of the connector markers. The default is
* automatically computed based on the algorithmMargin setting.
*
* Setting marker.width and marker.height will override this
* setting.
*
* @type {number}
* @since 6.2.0
* @apioption connectors.marker.radius
*/
/**
* Set the width of the connector markers. If not supplied, this
* is inferred from the marker radius.
*
* @type {number}
* @since 6.2.0
* @apioption connectors.marker.width
*/
/**
* Set the height of the connector markers. If not supplied, this
* is inferred from the marker radius.
*
* @type {number}
* @since 6.2.0
* @apioption connectors.marker.height
*/
/**
* Set the color of the connector markers. By default this is the
* same as the connector color.
*
* @type {Highcharts.ColorString|Highcharts.GradientColorObject|Highcharts.PatternObject}
* @since 6.2.0
* @apioption connectors.marker.color
*/
/**
* Set the line/border color of the connector markers. By default
* this is the same as the marker color.
*
* @type {Highcharts.ColorString}
* @since 6.2.0
* @apioption connectors.marker.lineColor
*/
/**
* Enable markers for the connectors.
*/
enabled: false,
/**
* Horizontal alignment of the markers relative to the points.
*
* @type {Highcharts.AlignValue}
*/
align: 'center',
/**
* Vertical alignment of the markers relative to the points.
*
* @type {Highcharts.VerticalAlignValue}
*/
verticalAlign: 'middle',
/**
* Whether or not to draw the markers inside the points.
*/
inside: false,
/**
* Set the line/border width of the pathfinder markers.
*/
lineWidth: 1
},
/**
* Marker options specific to the start markers for this chart's
* Pathfinder connectors. Overrides the generic marker options.
*
* @declare Highcharts.ConnectorsStartMarkerOptions
* @extends connectors.marker
* @since 6.2.0
*/
startMarker: {
/**
* Set the symbol of the connector start markers.
*/
symbol: 'diamond'
},
/**
* Marker options specific to the end markers for this chart's
* Pathfinder connectors. Overrides the generic marker options.
*
* @declare Highcharts.ConnectorsEndMarkerOptions
* @extends connectors.marker
* @since 6.2.0
*/
endMarker: {
/**
* Set the symbol of the connector end markers.
*/
symbol: 'arrow-filled'
}
}
});
/**
* Override Pathfinder connector options for a series. Requires Highcharts Gantt
* to be loaded.
*
* @declare Highcharts.SeriesConnectorsOptionsObject
* @extends connectors
* @since 6.2.0
* @excluding enabled, algorithmMargin
* @product gantt
* @apioption plotOptions.series.connectors
*/
/**
* Connect to a point. This option can be either a string, referring to the ID
* of another point, or an object, or an array of either. If the option is an
* array, each element defines a connection.
*
* @sample gantt/pathfinder/demo
* Different connection types
*
* @declare Highcharts.XrangePointConnectorsOptionsObject
* @type {string|Array<string|*>|*}
* @extends plotOptions.series.connectors
* @since 6.2.0
* @excluding enabled
* @product gantt
* @requires highcharts-gantt
* @apioption series.xrange.data.connect
*/
/**
* The ID of the point to connect to.
*
* @type {string}
* @since 6.2.0
* @product gantt
* @apioption series.xrange.data.connect.to
*/
/**
* Get point bounding box using plotX/plotY and shapeArgs. If using
* graphic.getBBox() directly, the bbox will be affected by animation.
*
* @private
* @function
*
* @param {Highcharts.Point} point
* The point to get BB of.
*
* @return {Highcharts.Dictionary<number>|null}
* Result xMax, xMin, yMax, yMin.
*/
function getPointBB(point) {
var shapeArgs = point.shapeArgs, bb;
// Prefer using shapeArgs (columns)
if (shapeArgs) {
return {
xMin: shapeArgs.x || 0,
xMax: (shapeArgs.x || 0) + (shapeArgs.width || 0),
yMin: shapeArgs.y || 0,
yMax: (shapeArgs.y || 0) + (shapeArgs.height || 0)
};
}
// Otherwise use plotX/plotY and bb
bb = point.graphic && point.graphic.getBBox();
return bb ? {
xMin: point.plotX - bb.width / 2,
xMax: point.plotX + bb.width / 2,
yMin: point.plotY - bb.height / 2,
yMax: point.plotY + bb.height / 2
} : null;
}
/**
* Calculate margin to place around obstacles for the pathfinder in pixels.
* Returns a minimum of 1 pixel margin.
*
* @private
* @function
*
* @param {Array<object>} obstacles
* Obstacles to calculate margin from.
*
* @return {number}
* The calculated margin in pixels. At least 1.
*/
function calculateObstacleMargin(obstacles) {
var len = obstacles.length, i = 0, j, obstacleDistance, distances = [],
// Compute smallest distance between two rectangles
distance = function (a, b, bbMargin) {
// Count the distance even if we are slightly off
var margin = pick(bbMargin, 10), yOverlap = a.yMax + margin > b.yMin - margin &&
a.yMin - margin < b.yMax + margin, xOverlap = a.xMax + margin > b.xMin - margin &&
a.xMin - margin < b.xMax + margin, xDistance = yOverlap ? (a.xMin > b.xMax ? a.xMin - b.xMax : b.xMin - a.xMax) : Infinity, yDistance = xOverlap ? (a.yMin > b.yMax ? a.yMin - b.yMax : b.yMin - a.yMax) : Infinity;
// If the rectangles collide, try recomputing with smaller margin.
// If they collide anyway, discard the obstacle.
if (xOverlap && yOverlap) {
return (margin ?
distance(a, b, Math.floor(margin / 2)) :
Infinity);
}
return min(xDistance, yDistance);
};
// Go over all obstacles and compare them to the others.
for (; i < len; ++i) {
// Compare to all obstacles ahead. We will already have compared this
// obstacle to the ones before.
for (j = i + 1; j < len; ++j) {
obstacleDistance = distance(obstacles[i], obstacles[j]);
// TODO: Magic number 80
if (obstacleDistance < 80) { // Ignore large distances
distances.push(obstacleDistance);
}
}
}
// Ensure we always have at least one value, even in very spaceous charts
distances.push(80);
return max(Math.floor(distances.sort(function (a, b) {
return (a - b);
})[
// Discard first 10% of the relevant distances, and then grab
// the smallest one.
Math.floor(distances.length / 10)] / 2 - 1 // Divide the distance by 2 and subtract 1.
), 1 // 1 is the minimum margin
);
}
/* eslint-disable no-invalid-this, valid-jsdoc */
/**
* The Pathfinder class.
*
* @private
* @class
* @name Highcharts.Pathfinder
*
* @param {Highcharts.Chart} chart
* The chart to operate on.
*/
var Pathfinder = /** @class */ (function () {
function Pathfinder(chart) {
/* *
*
* Properties
*
* */
this.chart = void 0;
this.chartObstacles = void 0;
this.chartObstacleMetrics = void 0;
this.connections = void 0;
this.group = void 0;
this.lineObstacles = void 0;
this.init(chart);
}
/**
* @name Highcharts.Pathfinder#algorithms
* @type {Highcharts.Dictionary<Function>}
*/
/**
* Initialize the Pathfinder object.
*
* @function Highcharts.Pathfinder#init
*
* @param {Highcharts.Chart} chart
* The chart context.
*/
Pathfinder.prototype.init = function (chart) {
// Initialize pathfinder with chart context
this.chart = chart;
// Init connection reference list
this.connections = [];
// Recalculate paths/obstacles on chart redraw
addEvent(chart, 'redraw', function () {
this.pathfinder.update();
});
};
/**
* Update Pathfinder connections from scratch.
*
* @function Highcharts.Pathfinder#update
*
* @param {boolean} [deferRender]
* Whether or not to defer rendering of connections until
* series.afterAnimate event has fired. Used on first render.
*/
Pathfinder.prototype.update = function (deferRender) {
var chart = this.chart, pathfinder = this, oldConnections = pathfinder.connections;
// Rebuild pathfinder connections from options
pathfinder.connections = [];
chart.series.forEach(function (series) {
if (series.visible && !series.options.isInternal) {
series.points.forEach(function (point) {
var ganttPointOptions = point.options;
// For Gantt series the connect could be
// defined as a dependency
if (ganttPointOptions && ganttPointOptions.dependency) {
ganttPointOptions.connect = ganttPointOptions
.dependency;
}
var to, connects = (point.options &&
point.options.connect &&
splat(point.options.connect));
if (point.visible && point.isInside !== false && connects) {
connects.forEach(function (connect) {
to = chart.get(typeof connect === 'string' ?
connect : connect.to);
if (to instanceof Point &&
to.series.visible &&
to.visible &&
to.isInside !== false) {
// Add new connection
pathfinder.connections.push(new Connection(point, // from
to, typeof connect === 'string' ?
{} :
connect));
}
});
}
});
}
});
// Clear connections that should not be updated, and move old info over
// to new connections.
for (var j = 0, k = void 0, found = void 0, lenOld = oldConnections.length, lenNew = pathfinder.connections.length; j < lenOld; ++j) {
found = false;
var oldCon = oldConnections[j];
for (k = 0; k < lenNew; ++k) {
var newCon = pathfinder.connections[k];
if ((oldCon.options && oldCon.options.type) ===
(newCon.options && newCon.options.type) &&
oldCon.fromPoint === newCon.fromPoint &&
oldCon.toPoint === newCon.toPoint) {
newCon.graphics = oldCon.graphics;
found = true;
break;
}
}
if (!found) {
oldCon.destroy();
}
}
// Clear obstacles to force recalculation. This must be done on every
// redraw in case positions have changed. Recalculation is handled in
// Connection.getPath on demand.
delete this.chartObstacles;
delete this.lineObstacles;
// Draw the pending connections
pathfinder.renderConnections(deferRender);
};
/**
* Draw the chart's connecting paths.
*
* @function Highcharts.Pathfinder#renderConnections
*
* @param {boolean} [deferRender]
* Whether or not to defer render until series animation is finished.
* Used on first render.
*/
Pathfinder.prototype.renderConnections = function (deferRender) {
if (deferRender) {
// Render after series are done animating
this.chart.series.forEach(function (series) {
var render = function () {
// Find pathfinder connections belonging to this series
// that haven't rendered, and render them now.
var pathfinder = series.chart.pathfinder, conns = pathfinder && pathfinder.connections || [];
conns.forEach(function (connection) {
if (connection.fromPoint &&
connection.fromPoint.series === series) {
connection.render();
}
});
if (series.pathfinderRemoveRenderEvent) {
series.pathfinderRemoveRenderEvent();
delete series.pathfinderRemoveRenderEvent;
}
};
if (series.options.animation === false) {
render();
}
else {
series.pathfinderRemoveRenderEvent = addEvent(series, 'afterAnimate', render);
}
});
}
else {
// Go through connections and render them
this.connections.forEach(function (connection) {
connection.render();
});
}
};
/**
* Get obstacles for the points in the chart. Does not include connecting
* lines from Pathfinder. Applies algorithmMargin to the obstacles.
*
* @function Highcharts.Pathfinder#getChartObstacles
*
* @param {Object} options
* Options for the calculation. Currenlty only
* options.algorithmMargin.
*
* @return {Array<object>}
* An array of calculated obstacles. Each obstacle is defined as an
* object with xMin, xMax, yMin and yMax properties.
*/
Pathfinder.prototype.getChartObstacles = function (options) {
var obstacles = [], series = this.chart.series, margin = pick(options.algorithmMargin, 0), calculatedMargin;
for (var i = 0, sLen = series.length; i < sLen; ++i) {
if (series[i].visible && !series[i].options.isInternal) {
for (var j = 0, pLen = series[i].points.length, bb = void 0, point = void 0; j < pLen; ++j) {
point = series[i].points[j];
if (point.visible) {
bb = getPointBB(point);
if (bb) {
obstacles.push({
xMin: bb.xMin - margin,
xMax: bb.xMax + margin,
yMin: bb.yMin - margin,
yMax: bb.yMax + margin
});
}
}
}
}
}
// Sort obstacles by xMin for optimization
obstacles = obstacles.sort(function (a, b) {
return a.xMin - b.xMin;
});
// Add auto-calculated margin if the option is not defined
if (!defined(options.algorithmMargin)) {
calculatedMargin =
options.algorithmMargin =
calculateObstacleMargin(obstacles);
obstacles.forEach(function (obstacle) {
obstacle.xMin -= calculatedMargin;
obstacle.xMax += calculatedMargin;
obstacle.yMin -= calculatedMargin;
obstacle.yMax += calculatedMargin;
});
}
return obstacles;
};
/**
* Utility function to get metrics for obstacles:
* - Widest obstacle width
* - Tallest obstacle height
*
* @function Highcharts.Pathfinder#getObstacleMetrics
*
* @param {Array<object>} obstacles
* An array of obstacles to inspect.
*
* @return {Object}
* The calculated metrics, as an object with maxHeight and maxWidth
* properties.
*/
Pathfinder.prototype.getObstacleMetrics = function (obstacles) {
var maxWidth = 0, maxHeight = 0, width, height, i = obstacles.length;
while (i--) {
width = obstacles[i].xMax - obstacles[i].xMin;
height = obstacles[i].yMax - obstacles[i].yMin;
if (maxWidth < width) {
maxWidth = width;
}
if (maxHeight < height) {
maxHeight = height;
}
}
return {
maxHeight: maxHeight,
maxWidth: maxWidth
};
};
/**
* Utility to get which direction to start the pathfinding algorithm
* (X vs Y), calculated from a set of marker options.
*
* @function Highcharts.Pathfinder#getAlgorithmStartDirection
*
* @param {Highcharts.ConnectorsMarkerOptions} markerOptions
* Marker options to calculate from.
*
* @return {boolean}
* Returns true for X, false for Y, and undefined for autocalculate.
*/
Pathfinder.prototype.getAlgorithmStartDirection = function (markerOptions) {
var xCenter = markerOptions.align !== 'left' &&
markerOptions.align !== 'right', yCenter = markerOptions.verticalAlign !== 'top' &&
markerOptions.verticalAlign !== 'bottom', undef;
return xCenter ?
(yCenter ? undef : false) : // x is centered
(yCenter ? true : undef); // x is off-center
};
return Pathfinder;
}());
Pathfinder.prototype.algorithms = pathfinderAlgorithms;
// Add to Highcharts namespace
H.Pathfinder = Pathfinder;
// Add pathfinding capabilities to Points
extend(Point.prototype, /** @lends Point.prototype */ {
/**
* Get coordinates of anchor point for pathfinder connection.
*
* @private
* @function Highcharts.Point#getPathfinderAnchorPoint
*
* @param {Highcharts.ConnectorsMarkerOptions} markerOptions
* Connection options for position on point.
*
* @return {Highcharts.PositionObject}
* An object with x/y properties for the position. Coordinates are
* in plot values, not relative to point.
*/
getPathfinderAnchorPoint: function (markerOptions) {
var bb = getPointBB(this), x, y;
switch (markerOptions.align) { // eslint-disable-line default-case
case 'right':
x = 'xMax';
break;
case 'left':
x = 'xMin';
}
switch (markerOptions.verticalAlign) { // eslint-disable-line default-case
case 'top':
y = 'yMin';
break;
case 'bottom':
y = 'yMax';
}
return {
x: x ? bb[x] : (bb.xMin + bb.xMax) / 2,
y: y ? bb[y] : (bb.yMin + bb.yMax) / 2
};
},
/**
* Utility to get the angle from one point to another.
*
* @private
* @function Highcharts.Point#getRadiansToVector
*
* @param {Highcharts.PositionObject} v1
* The first vector, as an object with x/y properties.
*
* @param {Highcharts.PositionObject} v2
* The second vector, as an object with x/y properties.
*
* @return {number}
* The angle in degrees
*/
getRadiansToVector: function (v1, v2) {
var box;
if (!defined(v2)) {
box = getPointBB(this);
if (box) {
v2 = {
x: (box.xMin + box.xMax) / 2,
y: (box.yMin + box.yMax) / 2
};
}
}
return Math.atan2(v2.y - v1.y, v1.x - v2.x);
},
/**
* Utility to get the position of the marker, based on the path angle and
* the marker's radius.
*
* @private
* @function Highcharts.Point#getMarkerVector
*
* @param {number} radians
* The angle in radians from the point center to another vector.
*
* @param {number} markerRadius
* The radius of the marker, to calculate the additional distance to
* the center of the marker.
*
* @param {Object} anchor
* The anchor point of the path and marker as an object with x/y
* properties.
*
* @return {Object}
* The marker vector as an object with x/y properties.
*/
getMarkerVector: function (radians, markerRadius, anchor) {
var twoPI = Math.PI * 2.0, theta = radians, bb = getPointBB(this), rectWidth = bb.xMax - bb.xMin, rectHeight = bb.yMax - bb.yMin, rAtan = Math.atan2(rectHeight, rectWidth), tanTheta = 1, leftOrRightRegion = false, rectHalfWidth = rectWidth / 2.0, rectHalfHeight = rectHeight / 2.0, rectHorizontalCenter = bb.xMin + rectHalfWidth, rectVerticalCenter = bb.yMin + rectHalfHeight, edgePoint = {
x: rectHorizontalCenter,
y: rectVerticalCenter
}, xFactor = 1, yFactor = 1;
while (theta < -Math.PI) {
theta += twoPI;
}
while (theta > Math.PI) {
theta -= twoPI;
}
tanTheta = Math.tan(theta);
if ((theta > -rAtan) && (theta <= rAtan)) {
// Right side
yFactor = -1;
leftOrRightRegion = true;
}
else if (theta > rAtan && theta <= (Math.PI - rAtan)) {
// Top side
yFactor = -1;
}
else if (theta > (Math.PI - rAtan) || theta <= -(Math.PI - rAtan)) {
// Left side
xFactor = -1;
leftOrRightRegion = true;
}
else {
// Bottom side
xFactor = -1;
}
// Correct the edgePoint according to the placement of the marker
if (leftOrRightRegion) {
edgePoint.x += xFactor * (rectHalfWidth);
edgePoint.y += yFactor * (rectHalfWidth) * tanTheta;
}
else {
edgePoint.x += xFactor * (rectHeight / (2.0 * tanTheta));
edgePoint.y += yFactor * (rectHalfHeight);
}
if (anchor.x !== rectHorizontalCenter) {
edgePoint.x = anchor.x;
}
if (anchor.y !== rectVerticalCenter) {
edgePoint.y = anchor.y;
}
return {
x: edgePoint.x + (markerRadius * Math.cos(theta)),
y: edgePoint.y - (markerRadius * Math.sin(theta))
};
}
});
/**
* Warn if using legacy options. Copy the options over. Note that this will
* still break if using the legacy options in chart.update, addSeries etc.
* @private
*/
function warnLegacy(chart) {
if (chart.options.pathfinder ||
chart.series.reduce(function (acc, series) {
if (series.options) {
merge(true, (series.options.connectors = series.options.connectors ||
{}), series.options.pathfinder);
}
return acc || series.options && series.options.pathfinder;
}, false)) {
merge(true, (chart.options.connectors = chart.options.connectors || {}), chart.options.pathfinder);
error('WARNING: Pathfinder options have been renamed. ' +
'Use "chart.connectors" or "series.connectors" instead.');
}
}
// Initialize Pathfinder for charts
Chart.prototype.callbacks.push(function (chart) {
var options = chart.options;
if (options.connectors.enabled !== false) {
warnLegacy(chart);
this.pathfinder = new Pathfinder(this);
this.pathfinder.update(true); // First draw, defer render
}
});
export default Pathfinder;