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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.
*/
import * as graphic from '../../util/graphic';
import MapDraw from '../../component/helper/MapDraw';
import ChartView from '../../view/Chart';
import MapSeries, { MapDataItemOption } from './MapSeries';
import GlobalModel from '../../model/Global';
import ExtensionAPI from '../../core/ExtensionAPI';
import { Payload, DisplayState, ECElement } from '../../util/types';
import { setLabelStyle, getLabelStatesModels } from '../../label/labelStyle';
import { setStatesFlag, Z2_EMPHASIS_LIFT } from '../../util/states';
class MapView extends ChartView {
static type = 'map' as const;
readonly type = MapView.type;
private _mapDraw: MapDraw;
render(
mapModel: MapSeries,
ecModel: GlobalModel,
api: ExtensionAPI,
payload: Payload
): void {
// Not render if it is an toggleSelect action from self
if (payload && payload.type === 'mapToggleSelect'
&& payload.from === this.uid
) {
return;
}
const group = this.group;
group.removeAll();
if (mapModel.getHostGeoModel()) {
return;
}
if (this._mapDraw && payload && payload.type === 'geoRoam') {
this._mapDraw.resetForLabelLayout();
}
// Not update map if it is an roam action from self
if (!(payload && payload.type === 'geoRoam'
&& payload.componentType === 'series'
&& payload.seriesId === mapModel.id
)
) {
if (mapModel.needsDrawMap) {
const mapDraw = this._mapDraw || new MapDraw(api);
group.add(mapDraw.group);
mapDraw.draw(mapModel, ecModel, api, this, payload);
this._mapDraw = mapDraw;
}
else {
// Remove drawn map
this._mapDraw && this._mapDraw.remove();
this._mapDraw = null;
}
}
else {
const mapDraw = this._mapDraw;
mapDraw && group.add(mapDraw.group);
}
mapModel.get('showLegendSymbol') && ecModel.getComponent('legend')
&& this._renderSymbols(mapModel, ecModel, api);
}
remove(): void {
this._mapDraw && this._mapDraw.remove();
this._mapDraw = null;
this.group.removeAll();
}
dispose(): void {
this._mapDraw && this._mapDraw.remove();
this._mapDraw = null;
}
private _renderSymbols(mapModel: MapSeries, ecModel: GlobalModel, api: ExtensionAPI): void {
const originalData = mapModel.originalData;
const group = this.group;
originalData.each(originalData.mapDimension('value'), function (value, originalDataIndex) {
if (isNaN(value as number)) {
return;
}
const layout = originalData.getItemLayout(originalDataIndex);
if (!layout || !layout.point) {
// Not exists in map
return;
}
const point = layout.point;
const offset = layout.offset;
const circle = new graphic.Circle({
style: {
// Because the special of map draw.
// Which needs statistic of multiple series and draw on one map.
// And each series also need a symbol with legend color
//
// Layout and visual are put one the different data
// TODO
fill: mapModel.getData().getVisual('style').fill
},
shape: {
cx: point[0] + offset * 9,
cy: point[1],
r: 3
},
silent: true,
// Do not overlap the first series, on which labels are displayed.
z2: 8 + (!offset ? Z2_EMPHASIS_LIFT + 1 : 0)
});
// Only the series that has the first value on the same region is in charge of rendering the label.
// But consider the case:
// series: [
// {id: 'X', type: 'map', map: 'm', {data: [{name: 'A', value: 11}, {name: 'B', {value: 22}]},
// {id: 'Y', type: 'map', map: 'm', {data: [{name: 'A', value: 21}, {name: 'C', {value: 33}]}
// ]
// The offset `0` of item `A` is at series `X`, but of item `C` is at series `Y`.
// For backward compatibility, we follow the rule that render label `A` by the
// settings on series `X` but render label `C` by the settings on series `Y`.
if (!offset) {
const fullData = mapModel.mainSeries.getData();
const name = originalData.getName(originalDataIndex);
const fullIndex = fullData.indexOfName(name);
const itemModel = originalData.getItemModel<MapDataItemOption>(originalDataIndex);
const labelModel = itemModel.getModel('label');
const regionGroup = fullData.getItemGraphicEl(fullIndex);
// `getFormattedLabel` needs to use `getData` inside. Here
// `mapModel.getData()` is shallow cloned from `mainSeries.getData()`.
// FIXME
// If this is not the `mainSeries`, the item model (like label formatter)
// set on original data item will never get. But it has been working
// like that from the beginning, and this scenario is rarely encountered.
// So it won't be fixed until we have to.
setLabelStyle(circle, getLabelStatesModels(itemModel), {
labelFetcher: {
getFormattedLabel(idx: number, state: DisplayState) {
return mapModel.getFormattedLabel(fullIndex, state);
}
},
defaultText: name
});
(circle as ECElement).disableLabelAnimation = true;
if (!labelModel.get('position')) {
circle.setTextConfig({
position: 'bottom'
});
}
(regionGroup as ECElement).onHoverStateChange = function (toState) {
setStatesFlag(circle, toState);
};
}
group.add(circle);
});
}
}
export default MapView;
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