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Bug 812795 (Part 2) - Disable subpixel AA on SVG text when requested to. r=jwatt

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This commit is contained in:
Robert Longson 2014-01-09 13:40:00 +00:00
parent 5216dde30b
commit 72c629af31
1 changed files with 10 additions and 1 deletions
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11
layout/svg/SVGTextFrame.cpp
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@ -3058,7 +3058,8 @@ class nsDisplaySVGText : public nsDisplayItem {
public:
nsDisplaySVGText(nsDisplayListBuilder* aBuilder,
SVGTextFrame* aFrame)
: nsDisplayItem(aBuilder, aFrame)
: nsDisplayItem(aBuilder, aFrame),
mDisableSubpixelAA(false)
{
MOZ_COUNT_CTOR(nsDisplaySVGText);
NS_ABORT_IF_FALSE(aFrame, "Must have a frame!");
@ -3071,10 +3072,15 @@ public:
NS_DISPLAY_DECL_NAME("nsDisplaySVGText", TYPE_SVG_TEXT)
virtual void DisableComponentAlpha() MOZ_OVERRIDE {
mDisableSubpixelAA = true;
}
virtual void HitTest(nsDisplayListBuilder* aBuilder, const nsRect& aRect,
HitTestState* aState, nsTArray<nsIFrame*> *aOutFrames);
virtual void Paint(nsDisplayListBuilder* aBuilder,
nsRenderingContext* aCtx);
private:
bool mDisableSubpixelAA;
};
void
@ -3097,6 +3103,9 @@ void
nsDisplaySVGText::Paint(nsDisplayListBuilder* aBuilder,
nsRenderingContext* aCtx)
{
gfxContextAutoDisableSubpixelAntialiasing
disable(aCtx->ThebesContext(), mDisableSubpixelAA);
// ToReferenceFrame includes our mRect offset, but painting takes
// account of that too. To avoid double counting, we subtract that
// here.