void
nsListBoxBodyFrame::ReverseDestroyRows(PRInt32& aRowsToLose)
{
// We need to destroy frames until our row count has been properly
// reduced. A reflow will then pick up and create the new frames.
nsIFrame* childFrame = GetLastFrame();
nsBoxLayoutState state(PresContext());
nsCSSFrameConstructor* fc = PresContext()->PresShell()->FrameConstructor();
fc->BeginUpdate();
while (childFrame && aRowsToLose > 0) {
--aRowsToLose;
nsIFrame* prevFrame;
prevFrame = childFrame->GetPrevSibling();
RemoveChildFrame(state, childFrame);
mBottomFrame = childFrame = prevFrame;
}
fc->EndUpdate();
PresContext()->PresShell()->
FrameNeedsReflow(this, nsIPresShell::eTreeChange,
NS_FRAME_HAS_DIRTY_CHILDREN);
}
bool
nsListBoxBodyFrame::ContinueReflow(nscoord height)
{
#ifdef ACCESSIBILITY
if (nsIPresShell::IsAccessibilityActive()) {
// Create all the frames at once so screen readers and
// onscreen keyboards can see the full list right away
return true;
}
#endif
if (height <= 0) {
nsIFrame* lastChild = GetLastFrame();
nsIFrame* startingPoint = mBottomFrame;
if (startingPoint == nsnull) {
// We just want to delete everything but the first item.
startingPoint = GetFirstFrame();
}
if (lastChild != startingPoint) {
// We have some hangers on (probably caused by shrinking the size of the window).
// Nuke them.
nsIFrame* currFrame = startingPoint->GetNextSibling();
nsBoxLayoutState state(PresContext());
nsCSSFrameConstructor* fc =
PresContext()->PresShell()->FrameConstructor();
fc->BeginUpdate();
while (currFrame) {
nsIFrame* nextFrame = currFrame->GetNextSibling();
RemoveChildFrame(state, currFrame);
currFrame = nextFrame;
}
fc->EndUpdate();
PresContext()->PresShell()->
FrameNeedsReflow(this, nsIPresShell::eTreeChange,
NS_FRAME_HAS_DIRTY_CHILDREN);
}
return false;
}
else
return true;
}
void sPerfMonGpu::Flip()
{
if(Current)
{
// Leave(&MasterSection);
Current->FrequencyQuery->End(Adapter->ImmediateContext);
PendingFrames.AddTail(Current);
Current = 0;
uint64 freq;
while(PendingFrames.GetCount()>History)
GetLastFrame(freq);
}
if(sPerfMonEnable)
{
Current = GetFrame();
Current->Data.Clear();
sASSERT(Current->Queries.IsEmpty());
Current->FrequencyQuery->Begin(Adapter->ImmediateContext);
// Enter(&MasterSection);
}
}
virtual sArray<Record> *GetFrame(int n,uint64 &freq) {
return GetLastFrame(freq);
}
