69 lines
1.6 KiB
JavaScript
69 lines
1.6 KiB
JavaScript
import {
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extend,
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nodeOrNew,
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register,
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wrapWithAttrCheck
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} from '../utils/adopter.js'
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import { proportionalSize } from '../utils/utils.js'
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import { registerMethods } from '../utils/methods.js'
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import PointArray from '../types/PointArray.js'
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import Shape from './Shape.js'
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import * as pointed from '../modules/core/pointed.js'
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export default class Line extends Shape {
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// Initialize node
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constructor(node, attrs = node) {
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super(nodeOrNew('line', node), attrs)
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}
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// Get array
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array() {
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return new PointArray([
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[this.attr('x1'), this.attr('y1')],
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[this.attr('x2'), this.attr('y2')]
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])
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}
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// Move by left top corner
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move(x, y) {
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return this.attr(this.array().move(x, y).toLine())
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}
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// Overwrite native plot() method
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plot(x1, y1, x2, y2) {
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if (x1 == null) {
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return this.array()
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} else if (typeof y1 !== 'undefined') {
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x1 = { x1, y1, x2, y2 }
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} else {
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x1 = new PointArray(x1).toLine()
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}
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return this.attr(x1)
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}
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// Set element size to given width and height
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size(width, height) {
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const p = proportionalSize(this, width, height)
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return this.attr(this.array().size(p.width, p.height).toLine())
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}
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}
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extend(Line, pointed)
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registerMethods({
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Container: {
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// Create a line element
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line: wrapWithAttrCheck(function (...args) {
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// make sure plot is called as a setter
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// x1 is not necessarily a number, it can also be an array, a string and a PointArray
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return Line.prototype.plot.apply(
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this.put(new Line()),
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args[0] != null ? args : [0, 0, 0, 0]
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)
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})
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}
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})
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register(Line, 'Line')
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