void
DisplayItemClip::FillIntersectionOfRoundedRectClips(gfxContext* aContext,
const Color& aColor,
int32_t aAppUnitsPerDevPixel,
uint32_t aBegin,
uint32_t aEnd) const
{
DrawTarget& aDrawTarget = *aContext->GetDrawTarget();
aEnd = std::min<uint32_t>(aEnd, mRoundedClipRects.Length());
if (aBegin >= aEnd) {
return;
}
// Push clips for any rects that come BEFORE the rect at |aEnd - 1|, if any:
ApplyRoundedRectClipsTo(aContext, aAppUnitsPerDevPixel, aBegin, aEnd - 1);
// Now fill the rect at |aEnd - 1|:
RefPtr<Path> roundedRect = MakeRoundedRectPath(aDrawTarget,
aAppUnitsPerDevPixel,
mRoundedClipRects[aEnd - 1]);
ColorPattern color(ToDeviceColor(aColor));
aDrawTarget.Fill(roundedRect, color);
// Finally, pop any clips that we may have pushed:
for (uint32_t i = aBegin; i < aEnd - 1; ++i) {
aContext->PopClip();
}
}
void
DisplayItemClip::ApplyTo(gfxContext* aContext,
nsPresContext* aPresContext,
uint32_t aBegin, uint32_t aEnd)
{
int32_t A2D = aPresContext->AppUnitsPerDevPixel();
ApplyRectTo(aContext, A2D);
ApplyRoundedRectClipsTo(aContext, A2D, aBegin, aEnd);
}
void
DisplayItemClip::DrawRoundedRectsTo(gfxContext* aContext,
int32_t A2D,
uint32_t aBegin, uint32_t aEnd) const
{
DrawTarget& aDrawTarget = *aContext->GetDrawTarget();
aEnd = std::min<uint32_t>(aEnd, mRoundedClipRects.Length());
if (aEnd - aBegin == 0)
return;
// If there is just one rounded rect we can just fill it, if there are more then we
// must clip the rest to get the intersection of clips
ApplyRoundedRectClipsTo(aContext, A2D, aBegin, aEnd - 1);
RefPtr<Path> roundedRect =
MakeRoundedRectPath(aDrawTarget, A2D, mRoundedClipRects[aEnd - 1]);
aContext->SetPath(roundedRect);
aContext->Fill();
}