wit-uniapp/node_modules/echarts/lib/component/dataZoom/AxisProxy.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 * as numberUtil from '../../util/number.js';
import sliderMove from '../helper/sliderMove.js';
import { unionAxisExtentFromData } from '../../coord/axisHelper.js';
import { ensureScaleRawExtentInfo } from '../../coord/scaleRawExtentInfo.js';
import { getAxisMainType, isCoordSupported } from './helper.js';
import { SINGLE_REFERRING } from '../../util/model.js';
var each = zrUtil.each;
var asc = numberUtil.asc;
/**
 * Operate single axis.
 * One axis can only operated by one axis operator.
 * Different dataZoomModels may be defined to operate the same axis.
 * (i.e. 'inside' data zoom and 'slider' data zoom components)
 * So dataZoomModels share one axisProxy in that case.
 */

var AxisProxy =
/** @class */
function () {
  function AxisProxy(dimName, axisIndex, dataZoomModel, ecModel) {
    this._dimName = dimName;
    this._axisIndex = axisIndex;
    this.ecModel = ecModel;
    this._dataZoomModel = dataZoomModel; // /**
    //  * @readOnly
    //  * @private
    //  */
    // this.hasSeriesStacked;
  }
  /**
   * Whether the axisProxy is hosted by dataZoomModel.
   */


  AxisProxy.prototype.hostedBy = function (dataZoomModel) {
    return this._dataZoomModel === dataZoomModel;
  };
  /**
   * @return Value can only be NaN or finite value.
   */


  AxisProxy.prototype.getDataValueWindow = function () {
    return this._valueWindow.slice();
  };
  /**
   * @return {Array.<number>}
   */


  AxisProxy.prototype.getDataPercentWindow = function () {
    return this._percentWindow.slice();
  };

  AxisProxy.prototype.getTargetSeriesModels = function () {
    var seriesModels = [];
    this.ecModel.eachSeries(function (seriesModel) {
      if (isCoordSupported(seriesModel)) {
        var axisMainType = getAxisMainType(this._dimName);
        var axisModel = seriesModel.getReferringComponents(axisMainType, SINGLE_REFERRING).models[0];

        if (axisModel && this._axisIndex === axisModel.componentIndex) {
          seriesModels.push(seriesModel);
        }
      }
    }, this);
    return seriesModels;
  };

  AxisProxy.prototype.getAxisModel = function () {
    return this.ecModel.getComponent(this._dimName + 'Axis', this._axisIndex);
  };

  AxisProxy.prototype.getMinMaxSpan = function () {
    return zrUtil.clone(this._minMaxSpan);
  };
  /**
   * Only calculate by given range and this._dataExtent, do not change anything.
   */


  AxisProxy.prototype.calculateDataWindow = function (opt) {
    var dataExtent = this._dataExtent;
    var axisModel = this.getAxisModel();
    var scale = axisModel.axis.scale;

    var rangePropMode = this._dataZoomModel.getRangePropMode();

    var percentExtent = [0, 100];
    var percentWindow = [];
    var valueWindow = [];
    var hasPropModeValue;
    each(['start', 'end'], function (prop, idx) {
      var boundPercent = opt[prop];
      var boundValue = opt[prop + 'Value']; // Notice: dataZoom is based either on `percentProp` ('start', 'end') or
      // on `valueProp` ('startValue', 'endValue'). (They are based on the data extent
      // but not min/max of axis, which will be calculated by data window then).
      // The former one is suitable for cases that a dataZoom component controls multiple
      // axes with different unit or extent, and the latter one is suitable for accurate
      // zoom by pixel (e.g., in dataZoomSelect).
      // we use `getRangePropMode()` to mark which prop is used. `rangePropMode` is updated
      // only when setOption or dispatchAction, otherwise it remains its original value.
      // (Why not only record `percentProp` and always map to `valueProp`? Because
      // the map `valueProp` -> `percentProp` -> `valueProp` probably not the original
      // `valueProp`. consider two axes constrolled by one dataZoom. They have different
      // data extent. All of values that are overflow the `dataExtent` will be calculated
      // to percent '100%').

      if (rangePropMode[idx] === 'percent') {
        boundPercent == null && (boundPercent = percentExtent[idx]); // Use scale.parse to math round for category or time axis.

        boundValue = scale.parse(numberUtil.linearMap(boundPercent, percentExtent, dataExtent));
      } else {
        hasPropModeValue = true;
        boundValue = boundValue == null ? dataExtent[idx] : scale.parse(boundValue); // Calculating `percent` from `value` may be not accurate, because
        // This calculation can not be inversed, because all of values that
        // are overflow the `dataExtent` will be calculated to percent '100%'

        boundPercent = numberUtil.linearMap(boundValue, dataExtent, percentExtent);
      } // valueWindow[idx] = round(boundValue);
      // percentWindow[idx] = round(boundPercent);
      // fallback to extent start/end when parsed value or percent is invalid


      valueWindow[idx] = boundValue == null || isNaN(boundValue) ? dataExtent[idx] : boundValue;
      percentWindow[idx] = boundPercent == null || isNaN(boundPercent) ? percentExtent[idx] : boundPercent;
    });
    asc(valueWindow);
    asc(percentWindow); // The windows from user calling of `dispatchAction` might be out of the extent,
    // or do not obey the `min/maxSpan`, `min/maxValueSpan`. But we don't restrict window
    // by `zoomLock` here, because we see `zoomLock` just as a interaction constraint,
    // where API is able to initialize/modify the window size even though `zoomLock`
    // specified.

    var spans = this._minMaxSpan;
    hasPropModeValue ? restrictSet(valueWindow, percentWindow, dataExtent, percentExtent, false) : restrictSet(percentWindow, valueWindow, percentExtent, dataExtent, true);

    function restrictSet(fromWindow, toWindow, fromExtent, toExtent, toValue) {
      var suffix = toValue ? 'Span' : 'ValueSpan';
      sliderMove(0, fromWindow, fromExtent, 'all', spans['min' + suffix], spans['max' + suffix]);

      for (var i = 0; i < 2; i++) {
        toWindow[i] = numberUtil.linearMap(fromWindow[i], fromExtent, toExtent, true);
        toValue && (toWindow[i] = scale.parse(toWindow[i]));
      }
    }

    return {
      valueWindow: valueWindow,
      percentWindow: percentWindow
    };
  };
  /**
   * Notice: reset should not be called before series.restoreData() is called,
   * so it is recommended to be called in "process stage" but not "model init
   * stage".
   */


  AxisProxy.prototype.reset = function (dataZoomModel) {
    if (dataZoomModel !== this._dataZoomModel) {
      return;
    }

    var targetSeries = this.getTargetSeriesModels(); // Culculate data window and data extent, and record them.

    this._dataExtent = calculateDataExtent(this, this._dimName, targetSeries); // `calculateDataWindow` uses min/maxSpan.

    this._updateMinMaxSpan();

    var dataWindow = this.calculateDataWindow(dataZoomModel.settledOption);
    this._valueWindow = dataWindow.valueWindow;
    this._percentWindow = dataWindow.percentWindow; // Update axis setting then.

    this._setAxisModel();
  };

  AxisProxy.prototype.filterData = function (dataZoomModel, api) {
    if (dataZoomModel !== this._dataZoomModel) {
      return;
    }

    var axisDim = this._dimName;
    var seriesModels = this.getTargetSeriesModels();
    var filterMode = dataZoomModel.get('filterMode');
    var valueWindow = this._valueWindow;

    if (filterMode === 'none') {
      return;
    } // FIXME
    // Toolbox may has dataZoom injected. And if there are stacked bar chart
    // with NaN data, NaN will be filtered and stack will be wrong.
    // So we need to force the mode to be set empty.
    // In fect, it is not a big deal that do not support filterMode-'filter'
    // when using toolbox#dataZoom, utill tooltip#dataZoom support "single axis
    // selection" some day, which might need "adapt to data extent on the
    // otherAxis", which is disabled by filterMode-'empty'.
    // But currently, stack has been fixed to based on value but not index,
    // so this is not an issue any more.
    // let otherAxisModel = this.getOtherAxisModel();
    // if (dataZoomModel.get('$fromToolbox')
    //     && otherAxisModel
    //     && otherAxisModel.hasSeriesStacked
    // ) {
    //     filterMode = 'empty';
    // }
    // TODO
    // filterMode 'weakFilter' and 'empty' is not optimized for huge data yet.


    each(seriesModels, function (seriesModel) {
      var seriesData = seriesModel.getData();
      var dataDims = seriesData.mapDimensionsAll(axisDim);

      if (!dataDims.length) {
        return;
      }

      if (filterMode === 'weakFilter') {
        var store_1 = seriesData.getStore();
        var dataDimIndices_1 = zrUtil.map(dataDims, function (dim) {
          return seriesData.getDimensionIndex(dim);
        }, seriesData);
        seriesData.filterSelf(function (dataIndex) {
          var leftOut;
          var rightOut;
          var hasValue;

          for (var i = 0; i < dataDims.length; i++) {
            var value = store_1.get(dataDimIndices_1[i], dataIndex);
            var thisHasValue = !isNaN(value);
            var thisLeftOut = value < valueWindow[0];
            var thisRightOut = value > valueWindow[1];

            if (thisHasValue && !thisLeftOut && !thisRightOut) {
              return true;
            }

            thisHasValue && (hasValue = true);
            thisLeftOut && (leftOut = true);
            thisRightOut && (rightOut = true);
          } // If both left out and right out, do not filter.


          return hasValue && leftOut && rightOut;
        });
      } else {
        each(dataDims, function (dim) {
          if (filterMode === 'empty') {
            seriesModel.setData(seriesData = seriesData.map(dim, function (value) {
              return !isInWindow(value) ? NaN : value;
            }));
          } else {
            var range = {};
            range[dim] = valueWindow; // console.time('select');

            seriesData.selectRange(range); // console.timeEnd('select');
          }
        });
      }

      each(dataDims, function (dim) {
        seriesData.setApproximateExtent(valueWindow, dim);
      });
    });

    function isInWindow(value) {
      return value >= valueWindow[0] && value <= valueWindow[1];
    }
  };

  AxisProxy.prototype._updateMinMaxSpan = function () {
    var minMaxSpan = this._minMaxSpan = {};
    var dataZoomModel = this._dataZoomModel;
    var dataExtent = this._dataExtent;
    each(['min', 'max'], function (minMax) {
      var percentSpan = dataZoomModel.get(minMax + 'Span');
      var valueSpan = dataZoomModel.get(minMax + 'ValueSpan');
      valueSpan != null && (valueSpan = this.getAxisModel().axis.scale.parse(valueSpan)); // minValueSpan and maxValueSpan has higher priority than minSpan and maxSpan

      if (valueSpan != null) {
        percentSpan = numberUtil.linearMap(dataExtent[0] + valueSpan, dataExtent, [0, 100], true);
      } else if (percentSpan != null) {
        valueSpan = numberUtil.linearMap(percentSpan, [0, 100], dataExtent, true) - dataExtent[0];
      }

      minMaxSpan[minMax + 'Span'] = percentSpan;
      minMaxSpan[minMax + 'ValueSpan'] = valueSpan;
    }, this);
  };

  AxisProxy.prototype._setAxisModel = function () {
    var axisModel = this.getAxisModel();
    var percentWindow = this._percentWindow;
    var valueWindow = this._valueWindow;

    if (!percentWindow) {
      return;
    } // [0, 500]: arbitrary value, guess axis extent.


    var precision = numberUtil.getPixelPrecision(valueWindow, [0, 500]);
    precision = Math.min(precision, 20); // For value axis, if min/max/scale are not set, we just use the extent obtained
    // by series data, which may be a little different from the extent calculated by
    // `axisHelper.getScaleExtent`. But the different just affects the experience a
    // little when zooming. So it will not be fixed until some users require it strongly.

    var rawExtentInfo = axisModel.axis.scale.rawExtentInfo;

    if (percentWindow[0] !== 0) {
      rawExtentInfo.setDeterminedMinMax('min', +valueWindow[0].toFixed(precision));
    }

    if (percentWindow[1] !== 100) {
      rawExtentInfo.setDeterminedMinMax('max', +valueWindow[1].toFixed(precision));
    }

    rawExtentInfo.freeze();
  };

  return AxisProxy;
}();

function calculateDataExtent(axisProxy, axisDim, seriesModels) {
  var dataExtent = [Infinity, -Infinity];
  each(seriesModels, function (seriesModel) {
    unionAxisExtentFromData(dataExtent, seriesModel.getData(), axisDim);
  }); // It is important to get "consistent" extent when more then one axes is
  // controlled by a `dataZoom`, otherwise those axes will not be synchronized
  // when zooming. But it is difficult to know what is "consistent", considering
  // axes have different type or even different meanings (For example, two
  // time axes are used to compare data of the same date in different years).
  // So basically dataZoom just obtains extent by series.data (in category axis
  // extent can be obtained from axis.data).
  // Nevertheless, user can set min/max/scale on axes to make extent of axes
  // consistent.

  var axisModel = axisProxy.getAxisModel();
  var rawExtentResult = ensureScaleRawExtentInfo(axisModel.axis.scale, axisModel, dataExtent).calculate();
  return [rawExtentResult.min, rawExtentResult.max];
}

export default AxisProxy;