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