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对 background: transparent 值做特殊处理，以支持透明背景

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修复指定 transparent 属性值会当做本地图片处理以至于出现 VM22878:2 Failed to load local image resource 的错误，已在背景填充颜色逻辑上对 transparent 做了特殊判断处理
This commit is contained in:
Charles Lo 2018-08-11 18:27:34 +08:00
parent a2d03ea50d
commit 04f1e181a5
1 changed files with 1 additions and 1 deletions
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lib/pen.js
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@ -34,7 +34,7 @@ export default class Painter {
// 如果未设置背景，则默认使用白色 // 如果未设置背景，则默认使用白色
this.ctx.setFillStyle('#fff'); this.ctx.setFillStyle('#fff');
this.ctx.fillRect(-(width / 2), -(height / 2), width, height); this.ctx.fillRect(-(width / 2), -(height / 2), width, height);
} else if (bg.startsWith('#') || bg.startsWith('rgba')) { } else if (bg.startsWith('#') || bg.startsWith('rgba') || bg.toLowerCase() === 'transparent') {
// 背景填充颜色 // 背景填充颜色
this.ctx.setFillStyle(bg); this.ctx.setFillStyle(bg);
this.ctx.fillRect(-(width / 2), -(height / 2), width, height); this.ctx.fillRect(-(width / 2), -(height / 2), width, height);