698 lines
22 KiB
JavaScript
698 lines
22 KiB
JavaScript
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/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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var _config = require("../../config");
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var __DEV__ = _config.__DEV__;
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var echarts = require("../../echarts");
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var zrUtil = require("zrender/lib/core/util");
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var graphic = require("../../util/graphic");
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var _helper = require("./helper");
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var setLabel = _helper.setLabel;
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var Model = require("../../model/Model");
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var barItemStyle = require("./barItemStyle");
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var Path = require("zrender/lib/graphic/Path");
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var Group = require("zrender/lib/container/Group");
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var _throttle = require("../../util/throttle");
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var throttle = _throttle.throttle;
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var _createClipPathFromCoordSys = require("../helper/createClipPathFromCoordSys");
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var createClipPath = _createClipPathFromCoordSys.createClipPath;
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var Sausage = require("../../util/shape/sausage");
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/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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var BAR_BORDER_WIDTH_QUERY = ['itemStyle', 'barBorderWidth'];
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var _eventPos = [0, 0]; // FIXME
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// Just for compatible with ec2.
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zrUtil.extend(Model.prototype, barItemStyle);
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function getClipArea(coord, data) {
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var coordSysClipArea = coord.getArea && coord.getArea();
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if (coord.type === 'cartesian2d') {
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var baseAxis = coord.getBaseAxis(); // When boundaryGap is false or using time axis. bar may exceed the grid.
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// We should not clip this part.
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// See test/bar2.html
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if (baseAxis.type !== 'category' || !baseAxis.onBand) {
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var expandWidth = data.getLayout('bandWidth');
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if (baseAxis.isHorizontal()) {
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coordSysClipArea.x -= expandWidth;
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coordSysClipArea.width += expandWidth * 2;
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} else {
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coordSysClipArea.y -= expandWidth;
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coordSysClipArea.height += expandWidth * 2;
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}
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}
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}
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return coordSysClipArea;
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}
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var _default = echarts.extendChartView({
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type: 'bar',
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render: function (seriesModel, ecModel, api) {
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this._updateDrawMode(seriesModel);
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var coordinateSystemType = seriesModel.get('coordinateSystem');
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if (coordinateSystemType === 'cartesian2d' || coordinateSystemType === 'polar') {
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this._isLargeDraw ? this._renderLarge(seriesModel, ecModel, api) : this._renderNormal(seriesModel, ecModel, api);
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} else {}
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return this.group;
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},
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incrementalPrepareRender: function (seriesModel, ecModel, api) {
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this._clear();
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this._updateDrawMode(seriesModel);
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},
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incrementalRender: function (params, seriesModel, ecModel, api) {
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// Do not support progressive in normal mode.
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this._incrementalRenderLarge(params, seriesModel);
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},
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_updateDrawMode: function (seriesModel) {
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var isLargeDraw = seriesModel.pipelineContext.large;
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if (this._isLargeDraw == null || isLargeDraw ^ this._isLargeDraw) {
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this._isLargeDraw = isLargeDraw;
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this._clear();
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}
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},
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_renderNormal: function (seriesModel, ecModel, api) {
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var group = this.group;
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var data = seriesModel.getData();
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var oldData = this._data;
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var coord = seriesModel.coordinateSystem;
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var baseAxis = coord.getBaseAxis();
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var isHorizontalOrRadial;
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if (coord.type === 'cartesian2d') {
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isHorizontalOrRadial = baseAxis.isHorizontal();
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} else if (coord.type === 'polar') {
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isHorizontalOrRadial = baseAxis.dim === 'angle';
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}
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var animationModel = seriesModel.isAnimationEnabled() ? seriesModel : null;
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var needsClip = seriesModel.get('clip', true);
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var coordSysClipArea = getClipArea(coord, data); // If there is clipPath created in large mode. Remove it.
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group.removeClipPath(); // We don't use clipPath in normal mode because we needs a perfect animation
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// And don't want the label are clipped.
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var roundCap = seriesModel.get('roundCap', true);
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var drawBackground = seriesModel.get('showBackground', true);
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var backgroundModel = seriesModel.getModel('backgroundStyle');
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var barBorderRadius = backgroundModel.get('barBorderRadius') || 0;
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var bgEls = [];
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var oldBgEls = this._backgroundEls || [];
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var createBackground = function (dataIndex) {
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var bgLayout = getLayout[coord.type](data, dataIndex);
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var bgEl = createBackgroundEl(coord, isHorizontalOrRadial, bgLayout);
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bgEl.useStyle(backgroundModel.getBarItemStyle()); // Only cartesian2d support borderRadius.
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if (coord.type === 'cartesian2d') {
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bgEl.setShape('r', barBorderRadius);
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}
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bgEls[dataIndex] = bgEl;
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return bgEl;
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};
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data.diff(oldData).add(function (dataIndex) {
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var itemModel = data.getItemModel(dataIndex);
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var layout = getLayout[coord.type](data, dataIndex, itemModel);
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if (drawBackground) {
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createBackground(dataIndex);
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} // If dataZoom in filteMode: 'empty', the baseValue can be set as NaN in "axisProxy".
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if (!data.hasValue(dataIndex)) {
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return;
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}
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if (needsClip) {
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// Clip will modify the layout params.
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// And return a boolean to determine if the shape are fully clipped.
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var isClipped = clip[coord.type](coordSysClipArea, layout);
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if (isClipped) {
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group.remove(el);
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return;
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}
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}
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var el = elementCreator[coord.type](dataIndex, layout, isHorizontalOrRadial, animationModel, false, roundCap);
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data.setItemGraphicEl(dataIndex, el);
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group.add(el);
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updateStyle(el, data, dataIndex, itemModel, layout, seriesModel, isHorizontalOrRadial, coord.type === 'polar');
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}).update(function (newIndex, oldIndex) {
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var itemModel = data.getItemModel(newIndex);
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var layout = getLayout[coord.type](data, newIndex, itemModel);
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if (drawBackground) {
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var bgEl;
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if (oldBgEls.length === 0) {
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bgEl = createBackground(oldIndex);
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} else {
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bgEl = oldBgEls[oldIndex];
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bgEl.useStyle(backgroundModel.getBarItemStyle()); // Only cartesian2d support borderRadius.
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if (coord.type === 'cartesian2d') {
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bgEl.setShape('r', barBorderRadius);
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}
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bgEls[newIndex] = bgEl;
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}
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var bgLayout = getLayout[coord.type](data, newIndex);
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var shape = createBackgroundShape(isHorizontalOrRadial, bgLayout, coord);
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graphic.updateProps(bgEl, {
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shape: shape
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}, animationModel, newIndex);
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}
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var el = oldData.getItemGraphicEl(oldIndex);
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if (!data.hasValue(newIndex)) {
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group.remove(el);
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return;
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}
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if (needsClip) {
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var isClipped = clip[coord.type](coordSysClipArea, layout);
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if (isClipped) {
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group.remove(el);
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return;
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}
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}
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if (el) {
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graphic.updateProps(el, {
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shape: layout
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}, animationModel, newIndex);
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} else {
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el = elementCreator[coord.type](newIndex, layout, isHorizontalOrRadial, animationModel, true, roundCap);
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}
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data.setItemGraphicEl(newIndex, el); // Add back
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group.add(el);
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updateStyle(el, data, newIndex, itemModel, layout, seriesModel, isHorizontalOrRadial, coord.type === 'polar');
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}).remove(function (dataIndex) {
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var el = oldData.getItemGraphicEl(dataIndex);
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if (coord.type === 'cartesian2d') {
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el && removeRect(dataIndex, animationModel, el);
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} else {
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el && removeSector(dataIndex, animationModel, el);
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}
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}).execute();
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var bgGroup = this._backgroundGroup || (this._backgroundGroup = new Group());
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bgGroup.removeAll();
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for (var i = 0; i < bgEls.length; ++i) {
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bgGroup.add(bgEls[i]);
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}
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group.add(bgGroup);
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this._backgroundEls = bgEls;
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this._data = data;
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},
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_renderLarge: function (seriesModel, ecModel, api) {
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this._clear();
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createLarge(seriesModel, this.group); // Use clipPath in large mode.
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var clipPath = seriesModel.get('clip', true) ? createClipPath(seriesModel.coordinateSystem, false, seriesModel) : null;
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if (clipPath) {
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this.group.setClipPath(clipPath);
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} else {
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this.group.removeClipPath();
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}
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},
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_incrementalRenderLarge: function (params, seriesModel) {
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this._removeBackground();
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createLarge(seriesModel, this.group, true);
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},
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dispose: zrUtil.noop,
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remove: function (ecModel) {
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this._clear(ecModel);
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},
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_clear: function (ecModel) {
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var group = this.group;
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var data = this._data;
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if (ecModel && ecModel.get('animation') && data && !this._isLargeDraw) {
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this._removeBackground();
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this._backgroundEls = [];
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data.eachItemGraphicEl(function (el) {
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if (el.type === 'sector') {
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removeSector(el.dataIndex, ecModel, el);
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} else {
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removeRect(el.dataIndex, ecModel, el);
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}
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});
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} else {
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group.removeAll();
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}
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this._data = null;
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},
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_removeBackground: function () {
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this.group.remove(this._backgroundGroup);
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this._backgroundGroup = null;
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}
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});
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var mathMax = Math.max;
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var mathMin = Math.min;
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var clip = {
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cartesian2d: function (coordSysBoundingRect, layout) {
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var signWidth = layout.width < 0 ? -1 : 1;
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var signHeight = layout.height < 0 ? -1 : 1; // Needs positive width and height
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if (signWidth < 0) {
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layout.x += layout.width;
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layout.width = -layout.width;
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}
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if (signHeight < 0) {
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layout.y += layout.height;
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layout.height = -layout.height;
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}
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var x = mathMax(layout.x, coordSysBoundingRect.x);
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var x2 = mathMin(layout.x + layout.width, coordSysBoundingRect.x + coordSysBoundingRect.width);
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var y = mathMax(layout.y, coordSysBoundingRect.y);
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var y2 = mathMin(layout.y + layout.height, coordSysBoundingRect.y + coordSysBoundingRect.height);
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layout.x = x;
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layout.y = y;
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layout.width = x2 - x;
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layout.height = y2 - y;
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var clipped = layout.width < 0 || layout.height < 0; // Reverse back
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if (signWidth < 0) {
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layout.x += layout.width;
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layout.width = -layout.width;
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}
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if (signHeight < 0) {
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layout.y += layout.height;
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layout.height = -layout.height;
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}
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return clipped;
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},
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polar: function (coordSysClipArea, layout) {
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var signR = layout.r0 <= layout.r ? 1 : -1; // Make sure r is larger than r0
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if (signR < 0) {
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var r = layout.r;
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layout.r = layout.r0;
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layout.r0 = r;
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}
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var r = mathMin(layout.r, coordSysClipArea.r);
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var r0 = mathMax(layout.r0, coordSysClipArea.r0);
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layout.r = r;
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layout.r0 = r0;
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var clipped = r - r0 < 0; // Reverse back
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if (signR < 0) {
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var r = layout.r;
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layout.r = layout.r0;
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layout.r0 = r;
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}
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return clipped;
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}
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};
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var elementCreator = {
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cartesian2d: function (dataIndex, layout, isHorizontal, animationModel, isUpdate) {
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var rect = new graphic.Rect({
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shape: zrUtil.extend({}, layout),
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z2: 1
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});
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rect.name = 'item'; // Animation
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if (animationModel) {
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var rectShape = rect.shape;
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var animateProperty = isHorizontal ? 'height' : 'width';
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var animateTarget = {};
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rectShape[animateProperty] = 0;
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animateTarget[animateProperty] = layout[animateProperty];
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graphic[isUpdate ? 'updateProps' : 'initProps'](rect, {
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shape: animateTarget
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}, animationModel, dataIndex);
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}
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return rect;
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},
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polar: function (dataIndex, layout, isRadial, animationModel, isUpdate, roundCap) {
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// Keep the same logic with bar in catesion: use end value to control
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// direction. Notice that if clockwise is true (by default), the sector
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// will always draw clockwisely, no matter whether endAngle is greater
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// or less than startAngle.
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var clockwise = layout.startAngle < layout.endAngle;
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var ShapeClass = !isRadial && roundCap ? Sausage : graphic.Sector;
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var sector = new ShapeClass({
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shape: zrUtil.defaults({
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clockwise: clockwise
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}, layout),
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z2: 1
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});
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sector.name = 'item'; // Animation
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if (animationModel) {
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var sectorShape = sector.shape;
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var animateProperty = isRadial ? 'r' : 'endAngle';
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var animateTarget = {};
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sectorShape[animateProperty] = isRadial ? 0 : layout.startAngle;
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animateTarget[animateProperty] = layout[animateProperty];
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graphic[isUpdate ? 'updateProps' : 'initProps'](sector, {
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shape: animateTarget
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}, animationModel, dataIndex);
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}
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return sector;
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}
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};
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function removeRect(dataIndex, animationModel, el) {
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// Not show text when animating
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el.style.text = null;
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graphic.updateProps(el, {
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shape: {
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width: 0
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}
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}, animationModel, dataIndex, function () {
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el.parent && el.parent.remove(el);
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});
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}
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function removeSector(dataIndex, animationModel, el) {
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// Not show text when animating
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el.style.text = null;
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graphic.updateProps(el, {
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shape: {
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r: el.shape.r0
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}
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}, animationModel, dataIndex, function () {
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el.parent && el.parent.remove(el);
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});
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}
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var getLayout = {
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// itemModel is only used to get borderWidth, which is not needed
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// when calculating bar background layout.
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cartesian2d: function (data, dataIndex, itemModel) {
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var layout = data.getItemLayout(dataIndex);
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var fixedLineWidth = itemModel ? getLineWidth(itemModel, layout) : 0; // fix layout with lineWidth
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var signX = layout.width > 0 ? 1 : -1;
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var signY = layout.height > 0 ? 1 : -1;
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return {
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x: layout.x + signX * fixedLineWidth / 2,
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y: layout.y + signY * fixedLineWidth / 2,
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width: layout.width - signX * fixedLineWidth,
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height: layout.height - signY * fixedLineWidth
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};
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},
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polar: function (data, dataIndex, itemModel) {
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var layout = data.getItemLayout(dataIndex);
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return {
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cx: layout.cx,
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cy: layout.cy,
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r0: layout.r0,
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r: layout.r,
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startAngle: layout.startAngle,
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endAngle: layout.endAngle
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};
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}
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};
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function isZeroOnPolar(layout) {
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return layout.startAngle != null && layout.endAngle != null && layout.startAngle === layout.endAngle;
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}
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function updateStyle(el, data, dataIndex, itemModel, layout, seriesModel, isHorizontal, isPolar) {
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var color = data.getItemVisual(dataIndex, 'color');
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var opacity = data.getItemVisual(dataIndex, 'opacity');
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var stroke = data.getVisual('borderColor');
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var itemStyleModel = itemModel.getModel('itemStyle');
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var hoverStyle = itemModel.getModel('emphasis.itemStyle').getBarItemStyle();
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if (!isPolar) {
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el.setShape('r', itemStyleModel.get('barBorderRadius') || 0);
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}
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el.useStyle(zrUtil.defaults({
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stroke: isZeroOnPolar(layout) ? 'none' : stroke,
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fill: isZeroOnPolar(layout) ? 'none' : color,
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opacity: opacity
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}, itemStyleModel.getBarItemStyle()));
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var cursorStyle = itemModel.getShallow('cursor');
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cursorStyle && el.attr('cursor', cursorStyle);
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var labelPositionOutside = isHorizontal ? layout.height > 0 ? 'bottom' : 'top' : layout.width > 0 ? 'left' : 'right';
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if (!isPolar) {
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setLabel(el.style, hoverStyle, itemModel, color, seriesModel, dataIndex, labelPositionOutside);
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}
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if (isZeroOnPolar(layout)) {
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hoverStyle.fill = hoverStyle.stroke = 'none';
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}
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graphic.setHoverStyle(el, hoverStyle);
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} // In case width or height are too small.
|
|
|
|
|
|
function getLineWidth(itemModel, rawLayout) {
|
|
var lineWidth = itemModel.get(BAR_BORDER_WIDTH_QUERY) || 0; // width or height may be NaN for empty data
|
|
|
|
var width = isNaN(rawLayout.width) ? Number.MAX_VALUE : Math.abs(rawLayout.width);
|
|
var height = isNaN(rawLayout.height) ? Number.MAX_VALUE : Math.abs(rawLayout.height);
|
|
return Math.min(lineWidth, width, height);
|
|
}
|
|
|
|
var LargePath = Path.extend({
|
|
type: 'largeBar',
|
|
shape: {
|
|
points: []
|
|
},
|
|
buildPath: function (ctx, shape) {
|
|
// Drawing lines is more efficient than drawing
|
|
// a whole line or drawing rects.
|
|
var points = shape.points;
|
|
var startPoint = this.__startPoint;
|
|
var baseDimIdx = this.__baseDimIdx;
|
|
|
|
for (var i = 0; i < points.length; i += 2) {
|
|
startPoint[baseDimIdx] = points[i + baseDimIdx];
|
|
ctx.moveTo(startPoint[0], startPoint[1]);
|
|
ctx.lineTo(points[i], points[i + 1]);
|
|
}
|
|
}
|
|
});
|
|
|
|
function createLarge(seriesModel, group, incremental) {
|
|
// TODO support polar
|
|
var data = seriesModel.getData();
|
|
var startPoint = [];
|
|
var baseDimIdx = data.getLayout('valueAxisHorizontal') ? 1 : 0;
|
|
startPoint[1 - baseDimIdx] = data.getLayout('valueAxisStart');
|
|
var largeDataIndices = data.getLayout('largeDataIndices');
|
|
var barWidth = data.getLayout('barWidth');
|
|
var backgroundModel = seriesModel.getModel('backgroundStyle');
|
|
var drawBackground = seriesModel.get('showBackground', true);
|
|
|
|
if (drawBackground) {
|
|
var points = data.getLayout('largeBackgroundPoints');
|
|
var backgroundStartPoint = [];
|
|
backgroundStartPoint[1 - baseDimIdx] = data.getLayout('backgroundStart');
|
|
var bgEl = new LargePath({
|
|
shape: {
|
|
points: points
|
|
},
|
|
incremental: !!incremental,
|
|
__startPoint: backgroundStartPoint,
|
|
__baseDimIdx: baseDimIdx,
|
|
__largeDataIndices: largeDataIndices,
|
|
__barWidth: barWidth,
|
|
silent: true,
|
|
z2: 0
|
|
});
|
|
setLargeBackgroundStyle(bgEl, backgroundModel, data);
|
|
group.add(bgEl);
|
|
}
|
|
|
|
var el = new LargePath({
|
|
shape: {
|
|
points: data.getLayout('largePoints')
|
|
},
|
|
incremental: !!incremental,
|
|
__startPoint: startPoint,
|
|
__baseDimIdx: baseDimIdx,
|
|
__largeDataIndices: largeDataIndices,
|
|
__barWidth: barWidth
|
|
});
|
|
group.add(el);
|
|
setLargeStyle(el, seriesModel, data); // Enable tooltip and user mouse/touch event handlers.
|
|
|
|
el.seriesIndex = seriesModel.seriesIndex;
|
|
|
|
if (!seriesModel.get('silent')) {
|
|
el.on('mousedown', largePathUpdateDataIndex);
|
|
el.on('mousemove', largePathUpdateDataIndex);
|
|
}
|
|
} // Use throttle to avoid frequently traverse to find dataIndex.
|
|
|
|
|
|
var largePathUpdateDataIndex = throttle(function (event) {
|
|
var largePath = this;
|
|
var dataIndex = largePathFindDataIndex(largePath, event.offsetX, event.offsetY);
|
|
largePath.dataIndex = dataIndex >= 0 ? dataIndex : null;
|
|
}, 30, false);
|
|
|
|
function largePathFindDataIndex(largePath, x, y) {
|
|
var baseDimIdx = largePath.__baseDimIdx;
|
|
var valueDimIdx = 1 - baseDimIdx;
|
|
var points = largePath.shape.points;
|
|
var largeDataIndices = largePath.__largeDataIndices;
|
|
var barWidthHalf = Math.abs(largePath.__barWidth / 2);
|
|
var startValueVal = largePath.__startPoint[valueDimIdx];
|
|
_eventPos[0] = x;
|
|
_eventPos[1] = y;
|
|
var pointerBaseVal = _eventPos[baseDimIdx];
|
|
var pointerValueVal = _eventPos[1 - baseDimIdx];
|
|
var baseLowerBound = pointerBaseVal - barWidthHalf;
|
|
var baseUpperBound = pointerBaseVal + barWidthHalf;
|
|
|
|
for (var i = 0, len = points.length / 2; i < len; i++) {
|
|
var ii = i * 2;
|
|
var barBaseVal = points[ii + baseDimIdx];
|
|
var barValueVal = points[ii + valueDimIdx];
|
|
|
|
if (barBaseVal >= baseLowerBound && barBaseVal <= baseUpperBound && (startValueVal <= barValueVal ? pointerValueVal >= startValueVal && pointerValueVal <= barValueVal : pointerValueVal >= barValueVal && pointerValueVal <= startValueVal)) {
|
|
return largeDataIndices[i];
|
|
}
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
function setLargeStyle(el, seriesModel, data) {
|
|
var borderColor = data.getVisual('borderColor') || data.getVisual('color');
|
|
var itemStyle = seriesModel.getModel('itemStyle').getItemStyle(['color', 'borderColor']);
|
|
el.useStyle(itemStyle);
|
|
el.style.fill = null;
|
|
el.style.stroke = borderColor;
|
|
el.style.lineWidth = data.getLayout('barWidth');
|
|
}
|
|
|
|
function setLargeBackgroundStyle(el, backgroundModel, data) {
|
|
var borderColor = backgroundModel.get('borderColor') || backgroundModel.get('color');
|
|
var itemStyle = backgroundModel.getItemStyle(['color', 'borderColor']);
|
|
el.useStyle(itemStyle);
|
|
el.style.fill = null;
|
|
el.style.stroke = borderColor;
|
|
el.style.lineWidth = data.getLayout('barWidth');
|
|
}
|
|
|
|
function createBackgroundShape(isHorizontalOrRadial, layout, coord) {
|
|
var coordLayout;
|
|
var isPolar = coord.type === 'polar';
|
|
|
|
if (isPolar) {
|
|
coordLayout = coord.getArea();
|
|
} else {
|
|
coordLayout = coord.grid.getRect();
|
|
}
|
|
|
|
if (isPolar) {
|
|
return {
|
|
cx: coordLayout.cx,
|
|
cy: coordLayout.cy,
|
|
r0: isHorizontalOrRadial ? coordLayout.r0 : layout.r0,
|
|
r: isHorizontalOrRadial ? coordLayout.r : layout.r,
|
|
startAngle: isHorizontalOrRadial ? layout.startAngle : 0,
|
|
endAngle: isHorizontalOrRadial ? layout.endAngle : Math.PI * 2
|
|
};
|
|
} else {
|
|
return {
|
|
x: isHorizontalOrRadial ? layout.x : coordLayout.x,
|
|
y: isHorizontalOrRadial ? coordLayout.y : layout.y,
|
|
width: isHorizontalOrRadial ? layout.width : coordLayout.width,
|
|
height: isHorizontalOrRadial ? coordLayout.height : layout.height
|
|
};
|
|
}
|
|
}
|
|
|
|
function createBackgroundEl(coord, isHorizontalOrRadial, layout) {
|
|
var ElementClz = coord.type === 'polar' ? graphic.Sector : graphic.Rect;
|
|
return new ElementClz({
|
|
shape: createBackgroundShape(isHorizontalOrRadial, layout, coord),
|
|
silent: true,
|
|
z2: 0
|
|
});
|
|
}
|
|
|
|
module.exports = _default; |