Rect.js
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/**
* 矩形
* @module zrender/graphic/shape/Rect
*/
import Path from '../Path';
import * as roundRectHelper from '../helper/roundRect';
import {subPixelOptimizeRect} from '../helper/subPixelOptimize';
// Avoid create repeatly.
var subPixelOptimizeOutputShape = {};
export default Path.extend({
type: 'rect',
shape: {
// 左上、右上、右下、左下角的半径依次为r1、r2、r3、r4
// r缩写为1 相当于 [1, 1, 1, 1]
// r缩写为[1] 相当于 [1, 1, 1, 1]
// r缩写为[1, 2] 相当于 [1, 2, 1, 2]
// r缩写为[1, 2, 3] 相当于 [1, 2, 3, 2]
r: 0,
x: 0,
y: 0,
width: 0,
height: 0
},
buildPath: function (ctx, shape) {
var x;
var y;
var width;
var height;
if (this.subPixelOptimize) {
subPixelOptimizeRect(subPixelOptimizeOutputShape, shape, this.style);
x = subPixelOptimizeOutputShape.x;
y = subPixelOptimizeOutputShape.y;
width = subPixelOptimizeOutputShape.width;
height = subPixelOptimizeOutputShape.height;
subPixelOptimizeOutputShape.r = shape.r;
shape = subPixelOptimizeOutputShape;
}
else {
x = shape.x;
y = shape.y;
width = shape.width;
height = shape.height;
}
if (!shape.r) {
ctx.rect(x, y, width, height);
}
else {
roundRectHelper.buildPath(ctx, shape);
}
ctx.closePath();
return;
}
});