/*
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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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/**
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* Line path for bezier and straight line draw
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*/
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import * as graphic from '../../util/graphic';
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import * as vec2 from 'zrender/src/core/vector';
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var straightLineProto = graphic.Line.prototype;
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var bezierCurveProto = graphic.BezierCurve.prototype;
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function isLine(shape) {
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return isNaN(+shape.cpx1) || isNaN(+shape.cpy1);
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}
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export default graphic.extendShape({
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type: 'ec-line',
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style: {
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stroke: '#000',
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fill: null
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},
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shape: {
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x1: 0,
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y1: 0,
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x2: 0,
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y2: 0,
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percent: 1,
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cpx1: null,
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cpy1: null
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},
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buildPath: function (ctx, shape) {
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(isLine(shape) ? straightLineProto : bezierCurveProto).buildPath(ctx, shape);
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},
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pointAt: function (t) {
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return isLine(this.shape)
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? straightLineProto.pointAt.call(this, t)
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: bezierCurveProto.pointAt.call(this, t);
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},
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tangentAt: function (t) {
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var shape = this.shape;
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var p = isLine(shape)
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? [shape.x2 - shape.x1, shape.y2 - shape.y1]
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: bezierCurveProto.tangentAt.call(this, t);
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return vec2.normalize(p, p);
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}
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});
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