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b=793501 invalidate new regions of even toplevel resized windows r=roc

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extra : transplant_source : %F1%A6%EDiKo%13%8D%8B%F5%7E%F9%2A%D2%D6%AC_%CA%ED%90
This commit is contained in:
Karl Tomlinson 2012-10-23 11:40:50 +13:00
parent 75b79d8505
commit 6d326e610f
1 changed files with 19 additions and 5 deletions
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24
widget/gtk2/nsWindow.cpp
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@ -2377,17 +2377,31 @@ nsWindow::OnSizeAllocate(GtkAllocation *aAllocation)
(void *)this, aAllocation->x, aAllocation->y,
aAllocation->width, aAllocation->height));
nsIntRect rect(aAllocation->x, aAllocation->y,
aAllocation->width, aAllocation->height);
nsIntSize size(aAllocation->width, aAllocation->height);
if (mBounds.Size() == size)
return;
mBounds.width = rect.width;
mBounds.height = rect.height;
// Invalidate the new part of the window now for the pending paint to
// minimize background flashes (GDK does not do this for external resizes
// of toplevels.)
if (mBounds.width < size.width) {
GdkRectangle rect =
{ mBounds.width, 0, size.width - mBounds.width, size.height };
gdk_window_invalidate_rect(mGdkWindow, &rect, FALSE);
}
if (mBounds.height < size.height) {
GdkRectangle rect =
{ 0, mBounds.height, size.width, size.height - mBounds.height };
gdk_window_invalidate_rect(mGdkWindow, &rect, FALSE);
}
mBounds.SizeTo(size);
if (!mGdkWindow)
return;
if (mWidgetListener)
mWidgetListener->WindowResized(this, rect.width, rect.height);
mWidgetListener->WindowResized(this, size.width, size.height);
}
void