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Don't crash when CurrentSurface() or GetDC() return null. b=391243 r+sr+a=vladimir

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This commit is contained in:
mats.palmgren@bredband.net 2007-08-14 02:47:37 -07:00
parent bbe0108c14
commit c366407693
1 changed files with 5 additions and 2 deletions
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7
gfx/thebes/src/gfxWindowsFonts.cpp
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@ -80,11 +80,14 @@ static PRLogModuleInfo *gFontLog = PR_NewLogModule("winfonts");
struct DCFromContext {
DCFromContext(gfxContext *aContext) {
HDC dc = NULL;
nsRefPtr<gfxASurface> aSurface = aContext->CurrentSurface();
if (aSurface->GetType() == gfxASurface::SurfaceTypeWin32) {
NS_ASSERTION(aSurface, "DCFromContext: null surface");
if (aSurface && aSurface->GetType() == gfxASurface::SurfaceTypeWin32) {
dc = static_cast<gfxWindowsSurface*>(aSurface.get())->GetDC();
needsRelease = PR_FALSE;
} else {
}
if (!dc) {
dc = GetDC(NULL);
needsRelease = PR_TRUE;
}