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Bug 591558: Don't consider child windows in opaque area. r=roc a=blocking-beta5

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This commit is contained in:
Bas Schouten 2010-08-28 07:51:17 +00:00
parent dbf27d7eca
commit c6f028072f
1 changed files with 0 additions and 28 deletions
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28
widget/src/windows/nsWindow.cpp
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@ -2441,20 +2441,6 @@ void nsWindow::SetTransparencyMode(nsTransparencyMode aMode)
GetTopLevelWindow(PR_TRUE)->SetWindowTranslucencyInner(aMode);
}
namespace {
BOOL CALLBACK AddClientAreaToRegion(HWND hWnd, LPARAM lParam) {
nsIntRegion *region = reinterpret_cast<nsIntRegion*>(lParam);
RECT clientRect;
::GetWindowRect(hWnd, &clientRect);
nsIntRect clientArea(clientRect.left, clientRect.top,
clientRect.right - clientRect.left,
clientRect.bottom - clientRect.top);
region->Or(*region, clientArea);
return TRUE;
}
}
void nsWindow::UpdatePossiblyTransparentRegion(const nsIntRegion &aDirtyRegion,
const nsIntRegion &aPossiblyTransparentRegion) {
#if MOZ_WINSDK_TARGETVER >= MOZ_NTDDI_LONGHORN
@ -2470,24 +2456,10 @@ void nsWindow::UpdatePossiblyTransparentRegion(const nsIntRegion &aDirtyRegion,
mPossiblyTransparentRegion.Sub(mPossiblyTransparentRegion, aDirtyRegion);
mPossiblyTransparentRegion.Or(mPossiblyTransparentRegion, aPossiblyTransparentRegion);
nsIntRegion childWindowRegion;
::EnumChildWindows(mWnd, AddClientAreaToRegion, reinterpret_cast<LPARAM>(&childWindowRegion));
nsIntPoint clientOffset = GetClientOffset();
childWindowRegion.MoveBy(-clientOffset);
RECT r;
::GetWindowRect(mWnd, &r);
childWindowRegion.MoveBy(-r.left, -r.top);
nsIntRect clientBounds;
topWindow->GetClientBounds(clientBounds);
nsIntRegion opaqueRegion;
opaqueRegion.Sub(clientBounds, mPossiblyTransparentRegion);
opaqueRegion.Or(opaqueRegion, childWindowRegion);
// Sometimes child windows overlap our bounds
opaqueRegion.And(opaqueRegion, clientBounds);
MARGINS margins = { 0, 0, 0, 0 };
DWORD_PTR dwStyle = ::GetWindowLongPtrW(hWnd, GWL_STYLE);