project/node_modules/echarts/lib/animation/morphTransitionHelper.js

/*
* 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 { separateMorph, combineMorph, morphPath, isCombineMorphing } from 'zrender/lib/tool/morphPath.js';
import { Path } from '../util/graphic.js';
import { defaults, isArray } from 'zrender/lib/core/util.js';
import { getAnimationConfig } from './basicTransition.js';
import { clonePath } from 'zrender/lib/tool/path.js';
function isMultiple(elements) {
  return isArray(elements[0]);
}
function prepareMorphBatches(one, many) {
  var batches = [];
  var batchCount = one.length;
  for (var i = 0; i < batchCount; i++) {
    batches.push({
      one: one[i],
      many: []
    });
  }
  for (var i = 0; i < many.length; i++) {
    var len = many[i].length;
    var k = void 0;
    for (k = 0; k < len; k++) {
      batches[k % batchCount].many.push(many[i][k]);
    }
  }
  var off = 0;
  // If one has more paths than each one of many. average them.
  for (var i = batchCount - 1; i >= 0; i--) {
    if (!batches[i].many.length) {
      var moveFrom = batches[off].many;
      if (moveFrom.length <= 1) {
        // Not enough
        // Start from the first one.
        if (off) {
          off = 0;
        } else {
          return batches;
        }
      }
      var len = moveFrom.length;
      var mid = Math.ceil(len / 2);
      batches[i].many = moveFrom.slice(mid, len);
      batches[off].many = moveFrom.slice(0, mid);
      off++;
    }
  }
  return batches;
}
var pathDividers = {
  clone: function (params) {
    var ret = [];
    // Fitting the alpha
    var approxOpacity = 1 - Math.pow(1 - params.path.style.opacity, 1 / params.count);
    for (var i = 0; i < params.count; i++) {
      var cloned = clonePath(params.path);
      cloned.setStyle('opacity', approxOpacity);
      ret.push(cloned);
    }
    return ret;
  },
  // Use the default divider
  split: null
};
export function applyMorphAnimation(from, to, divideShape, seriesModel, dataIndex, animateOtherProps) {
  if (!from.length || !to.length) {
    return;
  }
  var updateAnimationCfg = getAnimationConfig('update', seriesModel, dataIndex);
  if (!(updateAnimationCfg && updateAnimationCfg.duration > 0)) {
    return;
  }
  var animationDelay = seriesModel.getModel('universalTransition').get('delay');
  var animationCfg = Object.assign({
    // Need to setToFinal so the further calculation based on the style can be correct.
    // Like emphasis color.
    setToFinal: true
  }, updateAnimationCfg);
  var many;
  var one;
  if (isMultiple(from)) {
    // manyToOne
    many = from;
    one = to;
  }
  if (isMultiple(to)) {
    // oneToMany
    many = to;
    one = from;
  }
  function morphOneBatch(batch, fromIsMany, animateIndex, animateCount, forceManyOne) {
    var batchMany = batch.many;
    var batchOne = batch.one;
    if (batchMany.length === 1 && !forceManyOne) {
      // Is one to one
      var batchFrom = fromIsMany ? batchMany[0] : batchOne;
      var batchTo = fromIsMany ? batchOne : batchMany[0];
      if (isCombineMorphing(batchFrom)) {
        // Keep doing combine animation.
        morphOneBatch({
          many: [batchFrom],
          one: batchTo
        }, true, animateIndex, animateCount, true);
      } else {
        var individualAnimationCfg = animationDelay ? defaults({
          delay: animationDelay(animateIndex, animateCount)
        }, animationCfg) : animationCfg;
        morphPath(batchFrom, batchTo, individualAnimationCfg);
        animateOtherProps(batchFrom, batchTo, batchFrom, batchTo, individualAnimationCfg);
      }
    } else {
      var separateAnimationCfg = defaults({
        dividePath: pathDividers[divideShape],
        individualDelay: animationDelay && function (idx, count, fromPath, toPath) {
          return animationDelay(idx + animateIndex, animateCount);
        }
      }, animationCfg);
      var _a = fromIsMany ? combineMorph(batchMany, batchOne, separateAnimationCfg) : separateMorph(batchOne, batchMany, separateAnimationCfg),
        fromIndividuals = _a.fromIndividuals,
        toIndividuals = _a.toIndividuals;
      var count = fromIndividuals.length;
      for (var k = 0; k < count; k++) {
        var individualAnimationCfg = animationDelay ? defaults({
          delay: animationDelay(k, count)
        }, animationCfg) : animationCfg;
        animateOtherProps(fromIndividuals[k], toIndividuals[k], fromIsMany ? batchMany[k] : batch.one, fromIsMany ? batch.one : batchMany[k], individualAnimationCfg);
      }
    }
  }
  var fromIsMany = many ? many === from
  // Is one to one. If the path number not match. also needs do merge and separate morphing.
  : from.length > to.length;
  var morphBatches = many ? prepareMorphBatches(one, many) : prepareMorphBatches(fromIsMany ? to : from, [fromIsMany ? from : to]);
  var animateCount = 0;
  for (var i = 0; i < morphBatches.length; i++) {
    animateCount += morphBatches[i].many.length;
  }
  var animateIndex = 0;
  for (var i = 0; i < morphBatches.length; i++) {
    morphOneBatch(morphBatches[i], fromIsMany, animateIndex, animateCount);
    animateIndex += morphBatches[i].many.length;
  }
}
export function getPathList(elements) {
  if (!elements) {
    return [];
  }
  if (isArray(elements)) {
    var pathList_1 = [];
    for (var i = 0; i < elements.length; i++) {
      pathList_1.push(getPathList(elements[i]));
    }
    return pathList_1;
  }
  var pathList = [];
  elements.traverse(function (el) {
    if (el instanceof Path && !el.disableMorphing && !el.invisible && !el.ignore) {
      pathList.push(el);
    }
  });
  return pathList;
}