guanlan-src/app_frontEnd/web/node_modules/echarts/lib/component/brush/visualEncoding.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 * as zrUtil from 'zrender/lib/core/util.js';
import BoundingRect from 'zrender/lib/core/BoundingRect.js';
import * as visualSolution from '../../visual/visualSolution.js';
import { makeBrushCommonSelectorForSeries } from './selector.js';
import * as throttleUtil from '../../util/throttle.js';
import BrushTargetManager from '../helper/BrushTargetManager.js';
import { createSimpleOverallStageHandler2, initExtentForUnion } from '../../util/model.js';
var STATE_LIST = ['inBrush', 'outOfBrush'];
var DISPATCH_METHOD = '__ecBrushSelect';
var DISPATCH_FLAG = '__ecInBrushSelectEvent';
;
export function layoutCovers(ecModel) {
  ecModel.eachComponent({
    mainType: 'brush'
  }, function (brushModel) {
    var brushTargetManager = brushModel.brushTargetManager = new BrushTargetManager(brushModel.option, ecModel);
    brushTargetManager.setInputRanges(brushModel.areas, ecModel);
  });
}
export var brushVisualStageHandler = createSimpleOverallStageHandler2(brushVisual);
/**
 * Register the visual encoding if this modules required.
 */
function brushVisual(ecModel, api, payload) {
  var brushSelected = [];
  var throttleType;
  var throttleDelay;
  ecModel.eachComponent({
    mainType: 'brush'
  }, function (brushModel) {
    payload && payload.type === 'takeGlobalCursor' && brushModel.setBrushOption(payload.key === 'brush' ? payload.brushOption : {
      brushType: false
    });
  });
  layoutCovers(ecModel);
  ecModel.eachComponent({
    mainType: 'brush'
  }, function (brushModel, brushIndex) {
    var thisBrushSelected = {
      brushId: brushModel.id,
      brushIndex: brushIndex,
      brushName: brushModel.name,
      areas: zrUtil.clone(brushModel.areas),
      selected: []
    };
    // Every brush component exists in event params, convenient
    // for user to find by index.
    brushSelected.push(thisBrushSelected);
    var brushOption = brushModel.option;
    var brushLink = brushOption.brushLink;
    var linkedSeriesMap = [];
    var selectedDataIndexForLink = [];
    var rangeInfoBySeries = [];
    var hasBrushExists = false;
    if (!brushIndex) {
      // Only the first throttle setting works.
      throttleType = brushOption.throttleType;
      throttleDelay = brushOption.throttleDelay;
    }
    // Add boundingRect and selectors to range.
    var areas = zrUtil.map(brushModel.areas, function (area) {
      var builder = boundingRectBuilders[area.brushType];
      var selectableArea = zrUtil.defaults({
        boundingRect: builder ? builder(area) : void 0
      }, area);
      selectableArea.selectors = makeBrushCommonSelectorForSeries(selectableArea);
      return selectableArea;
    });
    var visualMappings = visualSolution.createVisualMappings(brushModel.option, STATE_LIST, function (mappingOption) {
      mappingOption.mappingMethod = 'fixed';
    });
    zrUtil.isArray(brushLink) && zrUtil.each(brushLink, function (seriesIndex) {
      linkedSeriesMap[seriesIndex] = 1;
    });
    function linkOthers(seriesIndex) {
      return brushLink === 'all' || !!linkedSeriesMap[seriesIndex];
    }
    // If no supported brush or no brush on the series,
    // all visuals should be in original state.
    function brushed(rangeInfoList) {
      return !!rangeInfoList.length;
    }
    /**
     * Logic for each series: (If the logic has to be modified one day, do it carefully!)
     *
     * ( brushed ┬ && ┬hasBrushExist ┬ && linkOthers  ) => StepA: ┬record, ┬ StepB: ┬visualByRecord.
     *   !brushed┘    ├hasBrushExist ┤                            └nothing,┘        ├visualByRecord.
     *                └!hasBrushExist┘                                              └nothing.
     * ( !brushed  && ┬hasBrushExist ┬ && linkOthers  ) => StepA:  nothing,  StepB: ┬visualByRecord.
     *                └!hasBrushExist┘                                              └nothing.
     * ( brushed ┬ &&                     !linkOthers ) => StepA:  nothing,  StepB: ┬visualByCheck.
     *   !brushed┘                                                                  └nothing.
     * ( !brushed  &&                     !linkOthers ) => StepA:  nothing,  StepB:  nothing.
     */
    // Step A
    ecModel.eachSeries(function (seriesModel, seriesIndex) {
      var rangeInfoList = rangeInfoBySeries[seriesIndex] = [];
      seriesModel.subType === 'parallel' ? stepAParallel(seriesModel, seriesIndex) : stepAOthers(seriesModel, seriesIndex, rangeInfoList);
    });
    function stepAParallel(seriesModel, seriesIndex) {
      var coordSys = seriesModel.coordinateSystem;
      hasBrushExists = hasBrushExists || coordSys.hasAxisBrushed();
      linkOthers(seriesIndex) && coordSys.eachActiveState(seriesModel.getData(), function (activeState, dataIndex) {
        activeState === 'active' && (selectedDataIndexForLink[dataIndex] = 1);
      });
    }
    function stepAOthers(seriesModel, seriesIndex, rangeInfoList) {
      if (!seriesModel.brushSelector || brushModelNotControll(brushModel, seriesIndex)) {
        return;
      }
      zrUtil.each(areas, function (area) {
        if (brushModel.brushTargetManager.controlSeries(area, seriesModel, ecModel)) {
          rangeInfoList.push(area);
        }
        hasBrushExists = hasBrushExists || brushed(rangeInfoList);
      });
      if (linkOthers(seriesIndex) && brushed(rangeInfoList)) {
        var data_1 = seriesModel.getData();
        data_1.each(function (dataIndex) {
          if (checkInRange(seriesModel, rangeInfoList, data_1, dataIndex)) {
            selectedDataIndexForLink[dataIndex] = 1;
          }
        });
      }
    }
    // Step B
    ecModel.eachSeries(function (seriesModel, seriesIndex) {
      var seriesBrushSelected = {
        seriesId: seriesModel.id,
        seriesIndex: seriesIndex,
        seriesName: seriesModel.name,
        dataIndex: []
      };
      // Every series exists in event params, convenient
      // for user to find series by seriesIndex.
      thisBrushSelected.selected.push(seriesBrushSelected);
      var rangeInfoList = rangeInfoBySeries[seriesIndex];
      var data = seriesModel.getData();
      var getValueState = linkOthers(seriesIndex) ? function (dataIndex) {
        return selectedDataIndexForLink[dataIndex] ? (seriesBrushSelected.dataIndex.push(data.getRawIndex(dataIndex)), 'inBrush') : 'outOfBrush';
      } : function (dataIndex) {
        return checkInRange(seriesModel, rangeInfoList, data, dataIndex) ? (seriesBrushSelected.dataIndex.push(data.getRawIndex(dataIndex)), 'inBrush') : 'outOfBrush';
      };
      // If no supported brush or no brush, all visuals are in original state.
      (linkOthers(seriesIndex) ? hasBrushExists : brushed(rangeInfoList)) && visualSolution.applyVisual(STATE_LIST, visualMappings, data, getValueState);
    });
  });
  dispatchAction(api, throttleType, throttleDelay, brushSelected, payload);
}
;
function dispatchAction(api, throttleType, throttleDelay, brushSelected, payload) {
  // This event will not be triggered when `setOption`, otherwise dead lock may
  // triggered when do `setOption` in event listener, which we do not find
  // satisfactory way to solve yet. Some considered resolutions:
  // (a) Diff with previous selected data ant only trigger event when changed.
  // But store previous data and diff precisely (i.e., not only by dataIndex, but
  // also detect value changes in selected data) might bring complexity or fragility.
  // (b) Use special param like `silent` to suppress event triggering.
  // But such kind of volatile param may be weird in `setOption`.
  if (!payload) {
    return;
  }
  // FIXME: [INCONSISTENCY_OF_BRUSH_SELECTED_EVENT_IN_UPDATE_TRANSFORM]
  // If any series declared in ec option does not support `updateTransform`, `updateTransform` will
  // dirty the pipeline (see `echarts.ts`), thereby `reset` of `brush/visualEncoding.ts` being called,
  // and then 'brushselected' event is triggered here.
  // If all series declared in ec option support `updateTransform` and return no 'update', the pipeline
  // will not be dirty, consequently `reset` is not called and 'brushselected' event is not triggered.
  // This inconsistency is unreasonable and error-prone.
  // Theoretically, 'brushselected' should always be triggered, since the "brush covers" may stay at its
  // original place even when roaming (depending on settings). But we should not use `dirtyOnOverallProgress`
  // in this visual task, otherwise all pipelines will be blocked and progressive rendering is broken.
  // Therefore, the mechanism of `updateTranform` and `updateVisual` needs to review and refactor.
  var zr = api.getZr();
  if (zr[DISPATCH_FLAG]) {
    return;
  }
  if (!zr[DISPATCH_METHOD]) {
    zr[DISPATCH_METHOD] = doDispatch;
  }
  var fn = throttleUtil.createOrUpdate(zr, DISPATCH_METHOD, throttleDelay, throttleType);
  fn(api, brushSelected);
}
function doDispatch(api, brushSelected) {
  if (!api.isDisposed()) {
    var zr = api.getZr();
    zr[DISPATCH_FLAG] = true;
    api.dispatchAction({
      type: 'brushSelect',
      batch: brushSelected
    });
    zr[DISPATCH_FLAG] = false;
  }
}
function checkInRange(seriesModel, rangeInfoList, data, dataIndex) {
  for (var i = 0, len = rangeInfoList.length; i < len; i++) {
    var area = rangeInfoList[i];
    if (seriesModel.brushSelector(dataIndex, data, area.selectors, area)) {
      return true;
    }
  }
}
function brushModelNotControll(brushModel, seriesIndex) {
  var seriesIndices = brushModel.option.seriesIndex;
  return seriesIndices != null && seriesIndices !== 'all' && (zrUtil.isArray(seriesIndices) ? zrUtil.indexOf(seriesIndices, seriesIndex) < 0 : seriesIndex !== seriesIndices);
}
var boundingRectBuilders = {
  rect: function (area) {
    return getBoundingRectFromMinMax(area.range);
  },
  polygon: function (area) {
    var minMax;
    var range = area.range;
    for (var i = 0, len = range.length; i < len; i++) {
      minMax = minMax || [initExtentForUnion(), initExtentForUnion()];
      var rg = range[i];
      rg[0] < minMax[0][0] && (minMax[0][0] = rg[0]);
      rg[0] > minMax[0][1] && (minMax[0][1] = rg[0]);
      rg[1] < minMax[1][0] && (minMax[1][0] = rg[1]);
      rg[1] > minMax[1][1] && (minMax[1][1] = rg[1]);
    }
    return minMax && getBoundingRectFromMinMax(minMax);
  }
};
function getBoundingRectFromMinMax(minMax) {
  return new BoundingRect(minMax[0][0], minMax[1][0], minMax[0][1] - minMax[0][0], minMax[1][1] - minMax[1][0]);
}