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Added some trace messages; fixed bug in PaintChildren that was always painting all children instead of allowing the intersection with the dirty rect to avoid paints

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kipp 1998-05-20 16:23:37 +00:00
parent 98f696a9af
commit d329a05735
1 changed files with 8 additions and 1 deletions
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9
layout/base/src/nsContainerFrame.cpp
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@ -101,6 +101,8 @@ NS_METHOD
nsContainerFrame::DidReflow(nsIPresContext& aPresContext,
nsDidReflowStatus aStatus)
{
NS_FRAME_TRACE_MSG(("enter nsContainerFrame::DidReflow: status=%d",
aStatus));
if (NS_FRAME_REFLOW_FINISHED == aStatus) {
mState &= ~NS_FRAME_IN_REFLOW;
nsFrameState state;
@ -113,6 +115,7 @@ nsContainerFrame::DidReflow(nsIPresContext& aPresContext,
kid->GetNextSibling(kid);
}
}
NS_FRAME_TRACE_OUT("nsContainerFrame::DidReflow");
return NS_OK;
}
@ -236,6 +239,10 @@ void nsContainerFrame::PaintChildren(nsIPresContext& aPresContext,
hidden = PR_TRUE;
}
// XXX reminder: use the coordinates in the dirty rect to figure out
// which set of children are impacted and only do the intersection
// work for them. In addition, stop when we no longer overlap.
nsIFrame* kid = mFirstChild;
while (nsnull != kid) {
nsIView *pView;
@ -246,7 +253,7 @@ void nsContainerFrame::PaintChildren(nsIPresContext& aPresContext,
kid->GetRect(kidRect);
nsRect damageArea;
PRBool overlap = damageArea.IntersectRect(aDirtyRect, kidRect);
if (!hidden || overlap) {
if (overlap) {
// Translate damage area into kid's coordinate system
nsRect kidDamageArea(damageArea.x - kidRect.x,
damageArea.y - kidRect.y,