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clipping simplification

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This commit is contained in:
Michael Fogleman 2016-02-26 08:39:32 -05:00
parent 9d56681560
commit 021242611d
1 changed files with 2 additions and 4 deletions
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6
context.go
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@ -425,10 +425,8 @@ func (dc *Context) ClipPreserve() {
if dc.mask == nil {
dc.mask = clip
} else {
r := image.Rect(0, 0, dc.width, dc.height)
mask := image.NewAlpha(r)
draw.DrawMask(mask, r, clip, image.ZP, dc.mask, image.ZP, draw.Over)
draw.DrawMask(mask, r, dc.mask, image.ZP, clip, image.ZP, draw.Over)
mask := image.NewAlpha(image.Rect(0, 0, dc.width, dc.height))
draw.DrawMask(mask, mask.Bounds(), clip, image.ZP, dc.mask, image.ZP, draw.Over)
dc.mask = mask
}
}