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/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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/**
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* AUTO-GENERATED FILE. DO NOT MODIFY.
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*/
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/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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// TODO: move labels out of viewport.
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import { BoundingRect, updateProps, initProps, isElementRemoved } from '../util/graphic.js';
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import { getECData } from '../util/innerStore.js';
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import { parsePercent } from '../util/number.js';
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import Transformable from 'zrender/lib/core/Transformable.js';
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import { updateLabelLinePoints, setLabelLineStyle, getLabelLineStatesModels } from './labelGuideHelper.js';
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import { makeInner } from '../util/model.js';
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import { retrieve2, each, keys, isFunction, filter, indexOf } from 'zrender/lib/core/util.js';
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import { prepareLayoutList, hideOverlap, shiftLayoutOnX, shiftLayoutOnY } from './labelLayoutHelper.js';
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import { labelInner, animateLabelValue } from './labelStyle.js';
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function cloneArr(points) {
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if (points) {
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var newPoints = [];
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for (var i = 0; i < points.length; i++) {
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newPoints.push(points[i].slice());
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}
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return newPoints;
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}
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}
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function prepareLayoutCallbackParams(labelItem, hostEl) {
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var label = labelItem.label;
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var labelLine = hostEl && hostEl.getTextGuideLine();
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return {
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dataIndex: labelItem.dataIndex,
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dataType: labelItem.dataType,
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seriesIndex: labelItem.seriesModel.seriesIndex,
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text: labelItem.label.style.text,
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rect: labelItem.hostRect,
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labelRect: labelItem.rect,
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// x: labelAttr.x,
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// y: labelAttr.y,
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align: label.style.align,
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verticalAlign: label.style.verticalAlign,
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labelLinePoints: cloneArr(labelLine && labelLine.shape.points)
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};
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}
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var LABEL_OPTION_TO_STYLE_KEYS = ['align', 'verticalAlign', 'width', 'height', 'fontSize'];
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var dummyTransformable = new Transformable();
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var labelLayoutInnerStore = makeInner();
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var labelLineAnimationStore = makeInner();
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function extendWithKeys(target, source, keys) {
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for (var i = 0; i < keys.length; i++) {
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var key = keys[i];
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if (source[key] != null) {
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target[key] = source[key];
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}
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}
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}
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var LABEL_LAYOUT_PROPS = ['x', 'y', 'rotation'];
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var LabelManager =
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/** @class */
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function () {
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function LabelManager() {
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this._labelList = [];
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this._chartViewList = [];
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}
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LabelManager.prototype.clearLabels = function () {
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this._labelList = [];
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this._chartViewList = [];
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};
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/**
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* Add label to manager
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*/
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LabelManager.prototype._addLabel = function (dataIndex, dataType, seriesModel, label, layoutOption) {
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var labelStyle = label.style;
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var hostEl = label.__hostTarget;
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var textConfig = hostEl.textConfig || {}; // TODO: If label is in other state.
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var labelTransform = label.getComputedTransform();
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var labelRect = label.getBoundingRect().plain();
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BoundingRect.applyTransform(labelRect, labelRect, labelTransform);
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if (labelTransform) {
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dummyTransformable.setLocalTransform(labelTransform);
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} else {
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// Identity transform.
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dummyTransformable.x = dummyTransformable.y = dummyTransformable.rotation = dummyTransformable.originX = dummyTransformable.originY = 0;
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dummyTransformable.scaleX = dummyTransformable.scaleY = 1;
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}
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var host = label.__hostTarget;
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var hostRect;
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if (host) {
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hostRect = host.getBoundingRect().plain();
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var transform = host.getComputedTransform();
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BoundingRect.applyTransform(hostRect, hostRect, transform);
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}
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var labelGuide = hostRect && host.getTextGuideLine();
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this._labelList.push({
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label: label,
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labelLine: labelGuide,
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seriesModel: seriesModel,
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dataIndex: dataIndex,
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dataType: dataType,
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layoutOption: layoutOption,
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computedLayoutOption: null,
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rect: labelRect,
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hostRect: hostRect,
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// Label with lower priority will be hidden when overlapped
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// Use rect size as default priority
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priority: hostRect ? hostRect.width * hostRect.height : 0,
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// Save default label attributes.
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// For restore if developers want get back to default value in callback.
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defaultAttr: {
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ignore: label.ignore,
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labelGuideIgnore: labelGuide && labelGuide.ignore,
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x: dummyTransformable.x,
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y: dummyTransformable.y,
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scaleX: dummyTransformable.scaleX,
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scaleY: dummyTransformable.scaleY,
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rotation: dummyTransformable.rotation,
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style: {
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x: labelStyle.x,
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y: labelStyle.y,
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align: labelStyle.align,
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verticalAlign: labelStyle.verticalAlign,
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width: labelStyle.width,
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height: labelStyle.height,
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fontSize: labelStyle.fontSize
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},
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cursor: label.cursor,
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attachedPos: textConfig.position,
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attachedRot: textConfig.rotation
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}
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});
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};
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LabelManager.prototype.addLabelsOfSeries = function (chartView) {
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var _this = this;
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this._chartViewList.push(chartView);
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var seriesModel = chartView.__model;
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var layoutOption = seriesModel.get('labelLayout');
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/**
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* Ignore layouting if it's not specified anything.
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*/
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if (!(isFunction(layoutOption) || keys(layoutOption).length)) {
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return;
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}
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chartView.group.traverse(function (child) {
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if (child.ignore) {
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return true; // Stop traverse descendants.
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} // Only support label being hosted on graphic elements.
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var textEl = child.getTextContent();
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var ecData = getECData(child); // Can only attach the text on the element with dataIndex
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if (textEl && !textEl.disableLabelLayout) {
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_this._addLabel(ecData.dataIndex, ecData.dataType, seriesModel, textEl, layoutOption);
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}
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});
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};
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LabelManager.prototype.updateLayoutConfig = function (api) {
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var width = api.getWidth();
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var height = api.getHeight();
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function createDragHandler(el, labelLineModel) {
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return function () {
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updateLabelLinePoints(el, labelLineModel);
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};
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}
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for (var i = 0; i < this._labelList.length; i++) {
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var labelItem = this._labelList[i];
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var label = labelItem.label;
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var hostEl = label.__hostTarget;
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var defaultLabelAttr = labelItem.defaultAttr;
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var layoutOption = void 0; // TODO A global layout option?
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if (isFunction(labelItem.layoutOption)) {
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layoutOption = labelItem.layoutOption(prepareLayoutCallbackParams(labelItem, hostEl));
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} else {
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layoutOption = labelItem.layoutOption;
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}
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layoutOption = layoutOption || {};
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labelItem.computedLayoutOption = layoutOption;
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var degreeToRadian = Math.PI / 180; // TODO hostEl should always exists.
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// Or label should not have parent because the x, y is all in global space.
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if (hostEl) {
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hostEl.setTextConfig({
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// Force to set local false.
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local: false,
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// Ignore position and rotation config on the host el if x or y is changed.
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position: layoutOption.x != null || layoutOption.y != null ? null : defaultLabelAttr.attachedPos,
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// Ignore rotation config on the host el if rotation is changed.
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rotation: layoutOption.rotate != null ? layoutOption.rotate * degreeToRadian : defaultLabelAttr.attachedRot,
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offset: [layoutOption.dx || 0, layoutOption.dy || 0]
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});
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}
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var needsUpdateLabelLine = false;
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if (layoutOption.x != null) {
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// TODO width of chart view.
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label.x = parsePercent(layoutOption.x, width);
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label.setStyle('x', 0); // Ignore movement in style. TODO: origin.
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needsUpdateLabelLine = true;
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} else {
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label.x = defaultLabelAttr.x;
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label.setStyle('x', defaultLabelAttr.style.x);
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}
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if (layoutOption.y != null) {
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// TODO height of chart view.
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label.y = parsePercent(layoutOption.y, height);
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label.setStyle('y', 0); // Ignore movement in style.
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needsUpdateLabelLine = true;
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} else {
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label.y = defaultLabelAttr.y;
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label.setStyle('y', defaultLabelAttr.style.y);
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}
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if (layoutOption.labelLinePoints) {
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var guideLine = hostEl.getTextGuideLine();
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if (guideLine) {
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guideLine.setShape({
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points: layoutOption.labelLinePoints
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}); // Not update
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needsUpdateLabelLine = false;
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}
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}
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var labelLayoutStore = labelLayoutInnerStore(label);
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labelLayoutStore.needsUpdateLabelLine = needsUpdateLabelLine;
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label.rotation = layoutOption.rotate != null ? layoutOption.rotate * degreeToRadian : defaultLabelAttr.rotation;
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label.scaleX = defaultLabelAttr.scaleX;
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label.scaleY = defaultLabelAttr.scaleY;
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for (var k = 0; k < LABEL_OPTION_TO_STYLE_KEYS.length; k++) {
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var key = LABEL_OPTION_TO_STYLE_KEYS[k];
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label.setStyle(key, layoutOption[key] != null ? layoutOption[key] : defaultLabelAttr.style[key]);
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}
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if (layoutOption.draggable) {
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label.draggable = true;
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label.cursor = 'move';
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if (hostEl) {
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var hostModel = labelItem.seriesModel;
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if (labelItem.dataIndex != null) {
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var data = labelItem.seriesModel.getData(labelItem.dataType);
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hostModel = data.getItemModel(labelItem.dataIndex);
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}
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label.on('drag', createDragHandler(hostEl, hostModel.getModel('labelLine')));
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}
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} else {
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// TODO Other drag functions?
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label.off('drag');
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label.cursor = defaultLabelAttr.cursor;
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}
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}
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};
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LabelManager.prototype.layout = function (api) {
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var width = api.getWidth();
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var height = api.getHeight();
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var labelList = prepareLayoutList(this._labelList);
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var labelsNeedsAdjustOnX = filter(labelList, function (item) {
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return item.layoutOption.moveOverlap === 'shiftX';
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});
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var labelsNeedsAdjustOnY = filter(labelList, function (item) {
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return item.layoutOption.moveOverlap === 'shiftY';
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});
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shiftLayoutOnX(labelsNeedsAdjustOnX, 0, width);
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shiftLayoutOnY(labelsNeedsAdjustOnY, 0, height);
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var labelsNeedsHideOverlap = filter(labelList, function (item) {
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return item.layoutOption.hideOverlap;
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});
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hideOverlap(labelsNeedsHideOverlap);
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};
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/**
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* Process all labels. Not only labels with layoutOption.
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*/
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LabelManager.prototype.processLabelsOverall = function () {
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var _this = this;
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each(this._chartViewList, function (chartView) {
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var seriesModel = chartView.__model;
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var ignoreLabelLineUpdate = chartView.ignoreLabelLineUpdate;
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var animationEnabled = seriesModel.isAnimationEnabled();
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chartView.group.traverse(function (child) {
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if (child.ignore && !child.forceLabelAnimation) {
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return true; // Stop traverse descendants.
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}
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var needsUpdateLabelLine = !ignoreLabelLineUpdate;
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var label = child.getTextContent();
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if (!needsUpdateLabelLine && label) {
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needsUpdateLabelLine = labelLayoutInnerStore(label).needsUpdateLabelLine;
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}
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if (needsUpdateLabelLine) {
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_this._updateLabelLine(child, seriesModel);
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}
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if (animationEnabled) {
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_this._animateLabels(child, seriesModel);
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}
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});
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});
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};
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LabelManager.prototype._updateLabelLine = function (el, seriesModel) {
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// Only support label being hosted on graphic elements.
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var textEl = el.getTextContent(); // Update label line style.
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var ecData = getECData(el);
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var dataIndex = ecData.dataIndex; // Only support labelLine on the labels represent data.
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if (textEl && dataIndex != null) {
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var data = seriesModel.getData(ecData.dataType);
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var itemModel = data.getItemModel(dataIndex);
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var defaultStyle = {};
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var visualStyle = data.getItemVisual(dataIndex, 'style');
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var visualType = data.getVisual('drawType'); // Default to be same with main color
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defaultStyle.stroke = visualStyle[visualType];
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var labelLineModel = itemModel.getModel('labelLine');
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setLabelLineStyle(el, getLabelLineStatesModels(itemModel), defaultStyle);
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updateLabelLinePoints(el, labelLineModel);
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}
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};
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LabelManager.prototype._animateLabels = function (el, seriesModel) {
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var textEl = el.getTextContent();
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var guideLine = el.getTextGuideLine(); // Animate
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if (textEl // `forceLabelAnimation` has the highest priority
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&& (el.forceLabelAnimation || !textEl.ignore && !textEl.invisible && !el.disableLabelAnimation && !isElementRemoved(el))) {
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var layoutStore = labelLayoutInnerStore(textEl);
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var oldLayout = layoutStore.oldLayout;
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var ecData = getECData(el);
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var dataIndex = ecData.dataIndex;
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var newProps = {
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x: textEl.x,
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y: textEl.y,
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rotation: textEl.rotation
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};
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var data = seriesModel.getData(ecData.dataType);
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if (!oldLayout) {
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textEl.attr(newProps); // Disable fade in animation if value animation is enabled.
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if (!labelInner(textEl).valueAnimation) {
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var oldOpacity = retrieve2(textEl.style.opacity, 1); // Fade in animation
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textEl.style.opacity = 0;
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initProps(textEl, {
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style: {
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opacity: oldOpacity
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}
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}, seriesModel, dataIndex);
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}
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} else {
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textEl.attr(oldLayout); // Make sure the animation from is in the right status.
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var prevStates = el.prevStates;
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if (prevStates) {
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if (indexOf(prevStates, 'select') >= 0) {
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textEl.attr(layoutStore.oldLayoutSelect);
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}
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if (indexOf(prevStates, 'emphasis') >= 0) {
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textEl.attr(layoutStore.oldLayoutEmphasis);
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}
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}
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updateProps(textEl, newProps, seriesModel, dataIndex);
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}
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layoutStore.oldLayout = newProps;
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if (textEl.states.select) {
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var layoutSelect = layoutStore.oldLayoutSelect = {};
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extendWithKeys(layoutSelect, newProps, LABEL_LAYOUT_PROPS);
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extendWithKeys(layoutSelect, textEl.states.select, LABEL_LAYOUT_PROPS);
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}
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if (textEl.states.emphasis) {
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var layoutEmphasis = layoutStore.oldLayoutEmphasis = {};
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extendWithKeys(layoutEmphasis, newProps, LABEL_LAYOUT_PROPS);
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extendWithKeys(layoutEmphasis, textEl.states.emphasis, LABEL_LAYOUT_PROPS);
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}
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animateLabelValue(textEl, dataIndex, data, seriesModel, seriesModel);
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}
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if (guideLine && !guideLine.ignore && !guideLine.invisible) {
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var layoutStore = labelLineAnimationStore(guideLine);
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var oldLayout = layoutStore.oldLayout;
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var newLayout = {
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points: guideLine.shape.points
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};
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if (!oldLayout) {
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guideLine.setShape(newLayout);
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guideLine.style.strokePercent = 0;
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initProps(guideLine, {
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style: {
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strokePercent: 1
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}
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}, seriesModel);
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} else {
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guideLine.attr({
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shape: oldLayout
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});
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updateProps(guideLine, {
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shape: newLayout
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}, seriesModel);
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}
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layoutStore.oldLayout = newLayout;
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}
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};
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return LabelManager;
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}();
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export default LabelManager;
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