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Bug 1015166 - Account for TopLeft of aBoundsRect in nsWindow::UpdateAlpha. r=ajones

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This commit is contained in:
Matt Woodrow 2014-05-30 13:37:04 +12:00
parent 525e2f6682
commit e4b76a2cd8
1 changed files with 4 additions and 1 deletions
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5
widget/gtk/nsWindow.cpp
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@ -2268,7 +2268,10 @@ nsWindow::UpdateAlpha(gfxPattern* aPattern, nsIntRect aBoundsRect)
stride, SurfaceFormat::A8);
if (drawTarget) {
drawTarget->FillRect(Rect(0, 0, aBoundsRect.width, aBoundsRect.height),
Matrix transform = Matrix::Translation(-aBoundsRect.x, -aBoundsRect.y);
drawTarget->SetTransform(transform);
drawTarget->FillRect(Rect(aBoundsRect.x, aBoundsRect.y, aBoundsRect.width, aBoundsRect.height),
*aPattern->GetPattern(drawTarget),
DrawOptions(1.0, CompositionOp::OP_SOURCE));
}