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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
import * as zrUtil from 'zrender/src/core/util';
import * as graphic from '../../util/graphic';
import SymbolClz from '../helper/Symbol';
import {radialCoordinate} from './layoutHelper';
import * as echarts from '../../echarts';
import * as bbox from 'zrender/src/core/bbox';
import View from '../../coord/View';
import * as roamHelper from '../../component/helper/roamHelper';
import RoamController from '../../component/helper/RoamController';
import {onIrrelevantElement} from '../../component/helper/cursorHelper';
import { __DEV__ } from '../../config';
import {parsePercent} from '../../util/number';
var TreeShape = graphic.extendShape({
shape: {
parentPoint: [],
childPoints: [],
orient: '',
forkPosition: ''
},
style: {
stroke: '#000',
fill: null
},
buildPath: function (ctx, shape) {
var childPoints = shape.childPoints;
var childLen = childPoints.length;
var parentPoint = shape.parentPoint;
var firstChildPos = childPoints[0];
var lastChildPos = childPoints[childLen - 1];
if (childLen === 1) {
ctx.moveTo(parentPoint[0], parentPoint[1]);
ctx.lineTo(firstChildPos[0], firstChildPos[1]);
return;
}
var orient = shape.orient;
var forkDim = (orient === 'TB' || orient === 'BT') ? 0 : 1;
var otherDim = 1 - forkDim;
var forkPosition = parsePercent(shape.forkPosition, 1);
var tmpPoint = [];
tmpPoint[forkDim] = parentPoint[forkDim];
tmpPoint[otherDim] = parentPoint[otherDim] + (lastChildPos[otherDim] - parentPoint[otherDim]) * forkPosition;
ctx.moveTo(parentPoint[0], parentPoint[1]);
ctx.lineTo(tmpPoint[0], tmpPoint[1]);
ctx.moveTo(firstChildPos[0], firstChildPos[1]);
tmpPoint[forkDim] = firstChildPos[forkDim];
ctx.lineTo(tmpPoint[0], tmpPoint[1]);
tmpPoint[forkDim] = lastChildPos[forkDim];
ctx.lineTo(tmpPoint[0], tmpPoint[1]);
ctx.lineTo(lastChildPos[0], lastChildPos[1]);
for (var i = 1; i < childLen - 1; i++) {
var point = childPoints[i];
ctx.moveTo(point[0], point[1]);
tmpPoint[forkDim] = point[forkDim];
ctx.lineTo(tmpPoint[0], tmpPoint[1]);
}
}
});
export default echarts.extendChartView({
type: 'tree',
/**
* Init the chart
* @override
* @param {module:echarts/model/Global} ecModel
* @param {module:echarts/ExtensionAPI} api
*/
init: function (ecModel, api) {
/**
* @private
* @type {module:echarts/data/Tree}
*/
this._oldTree;
/**
* @private
* @type {module:zrender/container/Group}
*/
this._mainGroup = new graphic.Group();
/**
* @private
* @type {module:echarts/componet/helper/RoamController}
*/
this._controller = new RoamController(api.getZr());
this._controllerHost = {target: this.group};
this.group.add(this._mainGroup);
},
render: function (seriesModel, ecModel, api, payload) {
var data = seriesModel.getData();
var layoutInfo = seriesModel.layoutInfo;
var group = this._mainGroup;
var layout = seriesModel.get('layout');
if (layout === 'radial') {
group.attr('position', [layoutInfo.x + layoutInfo.width / 2, layoutInfo.y + layoutInfo.height / 2]);
}
else {
group.attr('position', [layoutInfo.x, layoutInfo.y]);
}
this._updateViewCoordSys(seriesModel, layoutInfo, layout);
this._updateController(seriesModel, ecModel, api);
var oldData = this._data;
var seriesScope = {
expandAndCollapse: seriesModel.get('expandAndCollapse'),
layout: layout,
edgeShape: seriesModel.get('edgeShape'),
edgeForkPosition: seriesModel.get('edgeForkPosition'),
orient: seriesModel.getOrient(),
curvature: seriesModel.get('lineStyle.curveness'),
symbolRotate: seriesModel.get('symbolRotate'),
symbolOffset: seriesModel.get('symbolOffset'),
hoverAnimation: seriesModel.get('hoverAnimation'),
useNameLabel: true,
fadeIn: true
};
data.diff(oldData)
.add(function (newIdx) {
if (symbolNeedsDraw(data, newIdx)) {
// Create node and edge
updateNode(data, newIdx, null, group, seriesModel, seriesScope);
}
})
.update(function (newIdx, oldIdx) {
var symbolEl = oldData.getItemGraphicEl(oldIdx);
if (!symbolNeedsDraw(data, newIdx)) {
symbolEl && removeNode(oldData, oldIdx, symbolEl, group, seriesModel, seriesScope);
return;
}
// Update node and edge
updateNode(data, newIdx, symbolEl, group, seriesModel, seriesScope);
})
.remove(function (oldIdx) {
var symbolEl = oldData.getItemGraphicEl(oldIdx);
// When remove a collapsed node of subtree, since the collapsed
// node haven't been initialized with a symbol element,
// you can't found it's symbol element through index.
// so if we want to remove the symbol element we should insure
// that the symbol element is not null.
if (symbolEl) {
removeNode(oldData, oldIdx, symbolEl, group, seriesModel, seriesScope);
}
})
.execute();
this._nodeScaleRatio = seriesModel.get('nodeScaleRatio');
this._updateNodeAndLinkScale(seriesModel);
if (seriesScope.expandAndCollapse === true) {
data.eachItemGraphicEl(function (el, dataIndex) {
el.off('click').on('click', function () {
api.dispatchAction({
type: 'treeExpandAndCollapse',
seriesId: seriesModel.id,
dataIndex: dataIndex
});
});
});
}
this._data = data;
},
_updateViewCoordSys: function (seriesModel) {
var data = seriesModel.getData();
var points = [];
data.each(function (idx) {
var layout = data.getItemLayout(idx);
if (layout && !isNaN(layout.x) && !isNaN(layout.y)) {
points.push([+layout.x, +layout.y]);
}
});
var min = [];
var max = [];
bbox.fromPoints(points, min, max);
// If don't Store min max when collapse the root node after roam,
// the root node will disappear.
var oldMin = this._min;
var oldMax = this._max;
// If width or height is 0
if (max[0] - min[0] === 0) {
min[0] = oldMin ? oldMin[0] : min[0] - 1;
max[0] = oldMax ? oldMax[0] : max[0] + 1;
}
if (max[1] - min[1] === 0) {
min[1] = oldMin ? oldMin[1] : min[1] - 1;
max[1] = oldMax ? oldMax[1] : max[1] + 1;
}
var viewCoordSys = seriesModel.coordinateSystem = new View();
viewCoordSys.zoomLimit = seriesModel.get('scaleLimit');
viewCoordSys.setBoundingRect(min[0], min[1], max[0] - min[0], max[1] - min[1]);
viewCoordSys.setCenter(seriesModel.get('center'));
viewCoordSys.setZoom(seriesModel.get('zoom'));
// Here we use viewCoordSys just for computing the 'position' and 'scale' of the group
this.group.attr({
position: viewCoordSys.position,
scale: viewCoordSys.scale
});
this._viewCoordSys = viewCoordSys;
this._min = min;
this._max = max;
},
_updateController: function (seriesModel, ecModel, api) {
var controller = this._controller;
var controllerHost = this._controllerHost;
var group = this.group;
controller.setPointerChecker(function (e, x, y) {
var rect = group.getBoundingRect();
rect.applyTransform(group.transform);
return rect.contain(x, y)
&& !onIrrelevantElement(e, api, seriesModel);
});
controller.enable(seriesModel.get('roam'));
controllerHost.zoomLimit = seriesModel.get('scaleLimit');
controllerHost.zoom = seriesModel.coordinateSystem.getZoom();
controller
.off('pan')
.off('zoom')
.on('pan', function (e) {
roamHelper.updateViewOnPan(controllerHost, e.dx, e.dy);
api.dispatchAction({
seriesId: seriesModel.id,
type: 'treeRoam',
dx: e.dx,
dy: e.dy
});
}, this)
.on('zoom', function (e) {
roamHelper.updateViewOnZoom(controllerHost, e.scale, e.originX, e.originY);
api.dispatchAction({
seriesId: seriesModel.id,
type: 'treeRoam',
zoom: e.scale,
originX: e.originX,
originY: e.originY
});
this._updateNodeAndLinkScale(seriesModel);
}, this);
},
_updateNodeAndLinkScale: function (seriesModel) {
var data = seriesModel.getData();
var nodeScale = this._getNodeGlobalScale(seriesModel);
var invScale = [nodeScale, nodeScale];
data.eachItemGraphicEl(function (el, idx) {
el.attr('scale', invScale);
});
},
_getNodeGlobalScale: function (seriesModel) {
var coordSys = seriesModel.coordinateSystem;
if (coordSys.type !== 'view') {
return 1;
}
var nodeScaleRatio = this._nodeScaleRatio;
var groupScale = coordSys.scale;
var groupZoom = (groupScale && groupScale[0]) || 1;
// Scale node when zoom changes
var roamZoom = coordSys.getZoom();
var nodeScale = (roamZoom - 1) * nodeScaleRatio + 1;
return nodeScale / groupZoom;
},
dispose: function () {
this._controller && this._controller.dispose();
this._controllerHost = {};
},
remove: function () {
this._mainGroup.removeAll();
this._data = null;
}
});
function symbolNeedsDraw(data, dataIndex) {
var layout = data.getItemLayout(dataIndex);
return layout
&& !isNaN(layout.x) && !isNaN(layout.y)
&& data.getItemVisual(dataIndex, 'symbol') !== 'none';
}
function getTreeNodeStyle(node, itemModel, seriesScope) {
seriesScope.itemModel = itemModel;
seriesScope.itemStyle = itemModel.getModel('itemStyle').getItemStyle();
seriesScope.hoverItemStyle = itemModel.getModel('emphasis.itemStyle').getItemStyle();
seriesScope.lineStyle = itemModel.getModel('lineStyle').getLineStyle();
seriesScope.labelModel = itemModel.getModel('label');
seriesScope.hoverLabelModel = itemModel.getModel('emphasis.label');
if (node.isExpand === false && node.children.length !== 0) {
seriesScope.symbolInnerColor = seriesScope.itemStyle.fill;
}
else {
seriesScope.symbolInnerColor = '#fff';
}
return seriesScope;
}
function updateNode(data, dataIndex, symbolEl, group, seriesModel, seriesScope) {
var isInit = !symbolEl;
var node = data.tree.getNodeByDataIndex(dataIndex);
var itemModel = node.getModel();
var seriesScope = getTreeNodeStyle(node, itemModel, seriesScope);
var virtualRoot = data.tree.root;
var source = node.parentNode === virtualRoot ? node : node.parentNode || node;
var sourceSymbolEl = data.getItemGraphicEl(source.dataIndex);
var sourceLayout = source.getLayout();
var sourceOldLayout = sourceSymbolEl
? {
x: sourceSymbolEl.position[0],
y: sourceSymbolEl.position[1],
rawX: sourceSymbolEl.__radialOldRawX,
rawY: sourceSymbolEl.__radialOldRawY
}
: sourceLayout;
var targetLayout = node.getLayout();
if (isInit) {
symbolEl = new SymbolClz(data, dataIndex, seriesScope);
symbolEl.attr('position', [sourceOldLayout.x, sourceOldLayout.y]);
}
else {
symbolEl.updateData(data, dataIndex, seriesScope);
}
symbolEl.__radialOldRawX = symbolEl.__radialRawX;
symbolEl.__radialOldRawY = symbolEl.__radialRawY;
symbolEl.__radialRawX = targetLayout.rawX;
symbolEl.__radialRawY = targetLayout.rawY;
group.add(symbolEl);
data.setItemGraphicEl(dataIndex, symbolEl);
graphic.updateProps(symbolEl, {
position: [targetLayout.x, targetLayout.y]
}, seriesModel);
var symbolPath = symbolEl.getSymbolPath();
if (seriesScope.layout === 'radial') {
var realRoot = virtualRoot.children[0];
var rootLayout = realRoot.getLayout();
var length = realRoot.children.length;
var rad;
var isLeft;
if (targetLayout.x === rootLayout.x && node.isExpand === true) {
var center = {};
center.x = (realRoot.children[0].getLayout().x + realRoot.children[length - 1].getLayout().x) / 2;
center.y = (realRoot.children[0].getLayout().y + realRoot.children[length - 1].getLayout().y) / 2;
rad = Math.atan2(center.y - rootLayout.y, center.x - rootLayout.x);
if (rad < 0) {
rad = Math.PI * 2 + rad;
}
isLeft = center.x < rootLayout.x;
if (isLeft) {
rad = rad - Math.PI;
}
}
else {
rad = Math.atan2(targetLayout.y - rootLayout.y, targetLayout.x - rootLayout.x);
if (rad < 0) {
rad = Math.PI * 2 + rad;
}
if (node.children.length === 0 || (node.children.length !== 0 && node.isExpand === false)) {
isLeft = targetLayout.x < rootLayout.x;
if (isLeft) {
rad = rad - Math.PI;
}
}
else {
isLeft = targetLayout.x > rootLayout.x;
if (!isLeft) {
rad = rad - Math.PI;
}
}
}
var textPosition = isLeft ? 'left' : 'right';
var rotate = seriesScope.labelModel.get('rotate');
var labelRotateRadian = rotate * (Math.PI / 180);
symbolPath.setStyle({
textPosition: seriesScope.labelModel.get('position') || textPosition,
textRotation: rotate == null ? -rad : labelRotateRadian,
textOrigin: 'center',
verticalAlign: 'middle'
});
}
drawEdge(
seriesModel, node, virtualRoot, symbolEl, sourceOldLayout,
sourceLayout, targetLayout, group, seriesScope
);
}
function drawEdge(
seriesModel, node, virtualRoot, symbolEl, sourceOldLayout,
sourceLayout, targetLayout, group, seriesScope
) {
var edgeShape = seriesScope.edgeShape;
var edge = symbolEl.__edge;
if (edgeShape === 'curve') {
if (node.parentNode && node.parentNode !== virtualRoot) {
if (!edge) {
edge = symbolEl.__edge = new graphic.BezierCurve({
shape: getEdgeShape(seriesScope, sourceOldLayout, sourceOldLayout),
style: zrUtil.defaults({opacity: 0, strokeNoScale: true}, seriesScope.lineStyle)
});
}
graphic.updateProps(edge, {
shape: getEdgeShape(seriesScope, sourceLayout, targetLayout),
style: zrUtil.defaults({opacity: 1}, seriesScope.lineStyle)
}, seriesModel);
}
}
else if (edgeShape === 'polyline') {
if (seriesScope.layout === 'orthogonal') {
if (node !== virtualRoot && node.children && (node.children.length !== 0) && (node.isExpand === true)) {
var children = node.children;
var childPoints = [];
for (var i = 0; i < children.length; i++) {
var childLayout = children[i].getLayout();
childPoints.push([childLayout.x, childLayout.y]);
}
if (!edge) {
edge = symbolEl.__edge = new TreeShape({
shape: {
parentPoint: [targetLayout.x, targetLayout.y],
childPoints: [[targetLayout.x, targetLayout.y]],
orient: seriesScope.orient,
forkPosition: seriesScope.edgeForkPosition
},
style: zrUtil.defaults({opacity: 0, strokeNoScale: true}, seriesScope.lineStyle)
});
}
graphic.updateProps(edge, {
shape: {
parentPoint: [targetLayout.x, targetLayout.y],
childPoints: childPoints
},
style: zrUtil.defaults({opacity: 1}, seriesScope.lineStyle)
}, seriesModel);
}
}
else {
if (__DEV__) {
throw new Error('The polyline edgeShape can only be used in orthogonal layout');
}
}
}
group.add(edge);
}
function removeNode(data, dataIndex, symbolEl, group, seriesModel, seriesScope) {
var node = data.tree.getNodeByDataIndex(dataIndex);
var virtualRoot = data.tree.root;
var itemModel = node.getModel();
var seriesScope = getTreeNodeStyle(node, itemModel, seriesScope);
var source = node.parentNode === virtualRoot ? node : node.parentNode || node;
var edgeShape = seriesScope.edgeShape;
var sourceLayout;
while (sourceLayout = source.getLayout(), sourceLayout == null) {
source = source.parentNode === virtualRoot ? source : source.parentNode || source;
}
graphic.updateProps(symbolEl, {
position: [sourceLayout.x + 1, sourceLayout.y + 1]
}, seriesModel, function () {
group.remove(symbolEl);
data.setItemGraphicEl(dataIndex, null);
});
symbolEl.fadeOut(null, {keepLabel: true});
var sourceSymbolEl = data.getItemGraphicEl(source.dataIndex);
var sourceEdge = sourceSymbolEl.__edge;
// 1. when expand the sub tree, delete the children node should delete the edge of
// the source at the same time. because the polyline edge shape is only owned by the source.
// 2.when the node is the only children of the source, delete the node should delete the edge of
// the source at the same time. the same reason as above.
var edge = symbolEl.__edge
|| ((source.isExpand === false || source.children.length === 1) ? sourceEdge : undefined);
var edgeShape = seriesScope.edgeShape;
if (edge) {
if (edgeShape === 'curve') {
graphic.updateProps(edge, {
shape: getEdgeShape(seriesScope, sourceLayout, sourceLayout),
style: {
opacity: 0
}
}, seriesModel, function () {
group.remove(edge);
});
}
else if (edgeShape === 'polyline' && seriesScope.layout === 'orthogonal') {
graphic.updateProps(edge, {
shape: {
parentPoint: [sourceLayout.x, sourceLayout.y],
childPoints: [[sourceLayout.x, sourceLayout.y]]
},
style: {
opacity: 0
}
}, seriesModel, function () {
group.remove(edge);
});
}
}
}
function getEdgeShape(seriesScope, sourceLayout, targetLayout) {
var cpx1;
var cpy1;
var cpx2;
var cpy2;
var orient = seriesScope.orient;
var x1;
var x2;
var y1;
var y2;
if (seriesScope.layout === 'radial') {
x1 = sourceLayout.rawX;
y1 = sourceLayout.rawY;
x2 = targetLayout.rawX;
y2 = targetLayout.rawY;
var radialCoor1 = radialCoordinate(x1, y1);
var radialCoor2 = radialCoordinate(x1, y1 + (y2 - y1) * seriesScope.curvature);
var radialCoor3 = radialCoordinate(x2, y2 + (y1 - y2) * seriesScope.curvature);
var radialCoor4 = radialCoordinate(x2, y2);
return {
x1: radialCoor1.x,
y1: radialCoor1.y,
x2: radialCoor4.x,
y2: radialCoor4.y,
cpx1: radialCoor2.x,
cpy1: radialCoor2.y,
cpx2: radialCoor3.x,
cpy2: radialCoor3.y
};
}
else {
x1 = sourceLayout.x;
y1 = sourceLayout.y;
x2 = targetLayout.x;
y2 = targetLayout.y;
if (orient === 'LR' || orient === 'RL') {
cpx1 = x1 + (x2 - x1) * seriesScope.curvature;
cpy1 = y1;
cpx2 = x2 + (x1 - x2) * seriesScope.curvature;
cpy2 = y2;
}
if (orient === 'TB' || orient === 'BT') {
cpx1 = x1;
cpy1 = y1 + (y2 - y1) * seriesScope.curvature;
cpx2 = x2;
cpy2 = y2 + (y1 - y2) * seriesScope.curvature;
}
}
return {
x1: x1,
y1: y1,
x2: x2,
y2: y2,
cpx1: cpx1,
cpy1: cpy1,
cpx2: cpx2,
cpy2: cpy2
};
}