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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.
 
- */
 
- /**
 
-  * AUTO-GENERATED FILE. DO NOT MODIFY.
 
-  */
 
- /*
 
- * 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 graphic from '../../util/graphic.js';
 
- import LineGroup from './Line.js';
 
- import { getLabelStatesModels } from '../../label/labelStyle.js';
 
- var LineDraw =
 
- /** @class */
 
- function () {
 
-   function LineDraw(LineCtor) {
 
-     this.group = new graphic.Group();
 
-     this._LineCtor = LineCtor || LineGroup;
 
-   }
 
-   LineDraw.prototype.updateData = function (lineData) {
 
-     var _this = this; // Remove progressive els.
 
-     this._progressiveEls = null;
 
-     var lineDraw = this;
 
-     var group = lineDraw.group;
 
-     var oldLineData = lineDraw._lineData;
 
-     lineDraw._lineData = lineData; // There is no oldLineData only when first rendering or switching from
 
-     // stream mode to normal mode, where previous elements should be removed.
 
-     if (!oldLineData) {
 
-       group.removeAll();
 
-     }
 
-     var seriesScope = makeSeriesScope(lineData);
 
-     lineData.diff(oldLineData).add(function (idx) {
 
-       _this._doAdd(lineData, idx, seriesScope);
 
-     }).update(function (newIdx, oldIdx) {
 
-       _this._doUpdate(oldLineData, lineData, oldIdx, newIdx, seriesScope);
 
-     }).remove(function (idx) {
 
-       group.remove(oldLineData.getItemGraphicEl(idx));
 
-     }).execute();
 
-   };
 
-   ;
 
-   LineDraw.prototype.updateLayout = function () {
 
-     var lineData = this._lineData; // Do not support update layout in incremental mode.
 
-     if (!lineData) {
 
-       return;
 
-     }
 
-     lineData.eachItemGraphicEl(function (el, idx) {
 
-       el.updateLayout(lineData, idx);
 
-     }, this);
 
-   };
 
-   ;
 
-   LineDraw.prototype.incrementalPrepareUpdate = function (lineData) {
 
-     this._seriesScope = makeSeriesScope(lineData);
 
-     this._lineData = null;
 
-     this.group.removeAll();
 
-   };
 
-   ;
 
-   LineDraw.prototype.incrementalUpdate = function (taskParams, lineData) {
 
-     this._progressiveEls = [];
 
-     function updateIncrementalAndHover(el) {
 
-       if (!el.isGroup && !isEffectObject(el)) {
 
-         el.incremental = true;
 
-         el.ensureState('emphasis').hoverLayer = true;
 
-       }
 
-     }
 
-     for (var idx = taskParams.start; idx < taskParams.end; idx++) {
 
-       var itemLayout = lineData.getItemLayout(idx);
 
-       if (lineNeedsDraw(itemLayout)) {
 
-         var el = new this._LineCtor(lineData, idx, this._seriesScope);
 
-         el.traverse(updateIncrementalAndHover);
 
-         this.group.add(el);
 
-         lineData.setItemGraphicEl(idx, el);
 
-         this._progressiveEls.push(el);
 
-       }
 
-     }
 
-   };
 
-   ;
 
-   LineDraw.prototype.remove = function () {
 
-     this.group.removeAll();
 
-   };
 
-   ;
 
-   LineDraw.prototype.eachRendered = function (cb) {
 
-     graphic.traverseElements(this._progressiveEls || this.group, cb);
 
-   };
 
-   LineDraw.prototype._doAdd = function (lineData, idx, seriesScope) {
 
-     var itemLayout = lineData.getItemLayout(idx);
 
-     if (!lineNeedsDraw(itemLayout)) {
 
-       return;
 
-     }
 
-     var el = new this._LineCtor(lineData, idx, seriesScope);
 
-     lineData.setItemGraphicEl(idx, el);
 
-     this.group.add(el);
 
-   };
 
-   LineDraw.prototype._doUpdate = function (oldLineData, newLineData, oldIdx, newIdx, seriesScope) {
 
-     var itemEl = oldLineData.getItemGraphicEl(oldIdx);
 
-     if (!lineNeedsDraw(newLineData.getItemLayout(newIdx))) {
 
-       this.group.remove(itemEl);
 
-       return;
 
-     }
 
-     if (!itemEl) {
 
-       itemEl = new this._LineCtor(newLineData, newIdx, seriesScope);
 
-     } else {
 
-       itemEl.updateData(newLineData, newIdx, seriesScope);
 
-     }
 
-     newLineData.setItemGraphicEl(newIdx, itemEl);
 
-     this.group.add(itemEl);
 
-   };
 
-   return LineDraw;
 
- }();
 
- function isEffectObject(el) {
 
-   return el.animators && el.animators.length > 0;
 
- }
 
- function makeSeriesScope(lineData) {
 
-   var hostModel = lineData.hostModel;
 
-   var emphasisModel = hostModel.getModel('emphasis');
 
-   return {
 
-     lineStyle: hostModel.getModel('lineStyle').getLineStyle(),
 
-     emphasisLineStyle: emphasisModel.getModel(['lineStyle']).getLineStyle(),
 
-     blurLineStyle: hostModel.getModel(['blur', 'lineStyle']).getLineStyle(),
 
-     selectLineStyle: hostModel.getModel(['select', 'lineStyle']).getLineStyle(),
 
-     emphasisDisabled: emphasisModel.get('disabled'),
 
-     blurScope: emphasisModel.get('blurScope'),
 
-     focus: emphasisModel.get('focus'),
 
-     labelStatesModels: getLabelStatesModels(hostModel)
 
-   };
 
- }
 
- function isPointNaN(pt) {
 
-   return isNaN(pt[0]) || isNaN(pt[1]);
 
- }
 
- function lineNeedsDraw(pts) {
 
-   return pts && !isPointNaN(pts[0]) && !isPointNaN(pts[1]);
 
- }
 
- export default LineDraw;
 
 
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