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Add ifdefs (off by default) that allow better debugging of invalidation problems by painting invalidated regions exactly rather than taking the minimal containing rectangle. b=215303 r=roc sr=bryner

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This commit is contained in:
dbaron%dbaron.org 2004-01-21 21:05:57 +00:00
parent 8a20785582
commit 240541d85f
1 changed files with 27 additions and 12 deletions
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39
widget/src/gtk/nsWindow.cpp
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@ -803,14 +803,6 @@ nsWindow::DoPaint (nsIRegion *aClipRegion)
if (!mEventCallback)
return;
nsPaintEvent event(NS_PAINT, this);
event.time = GDK_CURRENT_TIME; // No time in EXPOSE events
nsRect boundsRect;
aClipRegion->GetBoundingBox(&boundsRect.x, &boundsRect.y, &boundsRect.width, &boundsRect.height);
event.rect = &boundsRect;
// Don't paint anything if our window isn't visible.
if (!mSuperWin)
return;
@ -826,10 +818,31 @@ nsWindow::DoPaint (nsIRegion *aClipRegion)
return;
}
event.renderingContext = GetRenderingContext();
if (!event.renderingContext)
nsCOMPtr<nsIRenderingContext> rc = getter_AddRefs(GetRenderingContext());
if (!rc)
return;
// defining NS_PAINT_SEPARATELY is useful for debugging invalidation
// problems since it limits repainting to the rects that were actually
// invalidated.
#undef NS_PAINT_SEPARATELY
#ifdef NS_PAINT_SEPARATELY
nsRegionRectSet *regionRectSet = nsnull;
aClipRegion->GetRects(&regionRectSet);
for (nsRegionRect *r = regionRectSet->mRects,
*r_end = r + regionRectSet->mNumRects; r < r_end; ++r) {
nsRect boundsRect(r->x, r->y, r->width, r->height);
#else
nsRect boundsRect;
aClipRegion->GetBoundingBox(&boundsRect.x, &boundsRect.y, &boundsRect.width, &boundsRect.height);
#endif
nsPaintEvent event(NS_PAINT, this);
event.renderingContext = rc;
event.time = GDK_CURRENT_TIME; // No time in EXPOSE events
event.rect = &boundsRect;
#ifdef DEBUG
GdkWindow *gw = GetRenderWindow(GTK_OBJECT(mSuperWin));
if (WANT_PAINT_FLASHING && gw)
@ -846,9 +859,11 @@ nsWindow::DoPaint (nsIRegion *aClipRegion)
debug_GetName(GTK_OBJECT(mSuperWin)),
(PRInt32) debug_GetRenderXID(GTK_OBJECT(mSuperWin)));
#endif // DEBUG
DispatchWindowEvent(&event);
NS_RELEASE(event.renderingContext);
#ifdef NS_PAINT_SEPARATELY
}
#endif
}
static NS_DEFINE_CID(kRegionCID, NS_REGION_CID);