118 lines
4.5 KiB
JavaScript
118 lines
4.5 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 polygonContain = require("zrender/lib/contain/polygon");
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var BoundingRect = require("zrender/lib/core/BoundingRect");
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var _graphic = require("../../util/graphic");
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var linePolygonIntersect = _graphic.linePolygonIntersect;
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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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// Key of the first level is brushType: `line`, `rect`, `polygon`.
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// Key of the second level is chart element type: `point`, `rect`.
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// See moudule:echarts/component/helper/BrushController
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// function param:
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// {Object} itemLayout fetch from data.getItemLayout(dataIndex)
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// {Object} selectors {point: selector, rect: selector, ...}
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// {Object} area {range: [[], [], ..], boudingRect}
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// function return:
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// {boolean} Whether in the given brush.
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var selector = {
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lineX: getLineSelectors(0),
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lineY: getLineSelectors(1),
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rect: {
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point: function (itemLayout, selectors, area) {
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return itemLayout && area.boundingRect.contain(itemLayout[0], itemLayout[1]);
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},
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rect: function (itemLayout, selectors, area) {
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return itemLayout && area.boundingRect.intersect(itemLayout);
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}
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},
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polygon: {
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point: function (itemLayout, selectors, area) {
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return itemLayout && area.boundingRect.contain(itemLayout[0], itemLayout[1]) && polygonContain.contain(area.range, itemLayout[0], itemLayout[1]);
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},
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rect: function (itemLayout, selectors, area) {
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var points = area.range;
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if (!itemLayout || points.length <= 1) {
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return false;
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}
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var x = itemLayout.x;
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var y = itemLayout.y;
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var width = itemLayout.width;
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var height = itemLayout.height;
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var p = points[0];
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if (polygonContain.contain(points, x, y) || polygonContain.contain(points, x + width, y) || polygonContain.contain(points, x, y + height) || polygonContain.contain(points, x + width, y + height) || BoundingRect.create(itemLayout).contain(p[0], p[1]) || linePolygonIntersect(x, y, x + width, y, points) || linePolygonIntersect(x, y, x, y + height, points) || linePolygonIntersect(x + width, y, x + width, y + height, points) || linePolygonIntersect(x, y + height, x + width, y + height, points)) {
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return true;
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}
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}
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}
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};
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function getLineSelectors(xyIndex) {
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var xy = ['x', 'y'];
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var wh = ['width', 'height'];
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return {
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point: function (itemLayout, selectors, area) {
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if (itemLayout) {
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var range = area.range;
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var p = itemLayout[xyIndex];
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return inLineRange(p, range);
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}
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},
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rect: function (itemLayout, selectors, area) {
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if (itemLayout) {
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var range = area.range;
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var layoutRange = [itemLayout[xy[xyIndex]], itemLayout[xy[xyIndex]] + itemLayout[wh[xyIndex]]];
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layoutRange[1] < layoutRange[0] && layoutRange.reverse();
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return inLineRange(layoutRange[0], range) || inLineRange(layoutRange[1], range) || inLineRange(range[0], layoutRange) || inLineRange(range[1], layoutRange);
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}
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}
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};
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}
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function inLineRange(p, range) {
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return range[0] <= p && p <= range[1];
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}
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var _default = selector;
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module.exports = _default; |