void CWsWindow::AbortDsaIfRequired(const TRegion& aNewRegion, const TRegion* aTop)
{
if (!iDSAs.IsEmpty())
{
// If the top visible region of this window has changed, DSA clients may need
// to be sent a DSA abort, as they may be drawing to a different region
STACK_REGION newTopVisible;
newTopVisible.Copy(aNewRegion); // new visible region
if (aTop!=NULL)
{
newTopVisible.Intersect(*aTop); // area of new visible region not obscured by any other opaque or translucent windows
}
// Build a list of DSA clients that need to be sent a DSA abort
TSglQue<CWsDirectScreenAccess> dsaList(_FOFF(CWsDirectScreenAccess,iAbortLink));
TSglQueIter<CWsDirectScreenAccess> iter(iDSAs);
CWsDirectScreenAccess* dsa;
while ((dsa=iter++)!=NULL)
{
if (dsa->IsAbortRequired(newTopVisible))
{
dsaList.AddLast(*dsa);
}
}
if (!dsaList.IsEmpty())
{
iScreen->AbortDSAs(RDirectScreenAccess::ETerminateRegion, dsaList);
}
newTopVisible.Close();
}
}
void CWsWindow::SetVisibleRegion(const TRegion& aNewRegion, const TRegion* aTop, TRegion& aNewFadableRegion)
{
STACK_REGION difference;
TBool diffs = EFalse;
difference.Copy(iVisibleRegion);
difference.SubRegion(aNewRegion);
if (!difference.IsEmpty())
{
diffs = ETrue;
if (IsTranslucent())
{
// Andy - If this is a client window (what else could it be) we can also subtract the
// user defined opaque region before doing this:
iScreen->AddRedrawRegion(difference, EFalse);
}
}
difference.Copy(aNewRegion);
if (HasBeenDrawnToScreen())
{
difference.SubRegion(iVisibleRegion);
}
if (!difference.IsEmpty())
{
diffs = ETrue;
STACK_REGION topDiff;
topDiff.Copy(difference);
WS_ASSERT_DEBUG(aTop,EWsPanicRegion);
topDiff.Intersect(*aTop);
difference.SubRegion(topDiff);
iScreen->AddRedrawRegion(topDiff, EFalse, ERedrawTopOnly);
iScreen->AddRedrawRegion(difference, EFalse, ERedrawAll);
topDiff.Close();
}
difference.Close();
AbortDsaIfRequired(aNewRegion, aTop);
if (diffs)
{
ResetVisibleRegion();
iVisibleRegion.Copy(aNewRegion);
PossibleVisibilityChangedEvent(EFalse);
}
iFadableRegion.Copy( aNewFadableRegion );
// Just because the visible region (screen coordinates) didn't change doesn't
// mean the invalid region (window coordinates) didn't change, so we always call this.
iRedraw->VisibleRegionChange();
}
void CWsWindow::SetVisibleRegion(const TRegion& aNewRegion, const TRegion* aTop)
{
WS_ASSERT_DEBUG(iScreen, EWsPanicNoScreen);
STACK_REGION difference;
TBool diffs = EFalse;
difference.Copy(iVisibleRegion);
difference.SubRegion(aNewRegion);
if (!difference.IsEmpty())
{
diffs = ETrue;
if (IsTranslucent())
{
iScreen->AddRedrawRegion(difference, EFalse);
}
}
difference.Copy(aNewRegion);
if (HasBeenDrawnToScreen())
{
difference.SubRegion(iVisibleRegion);
}
if (!difference.IsEmpty())
{
diffs = ETrue;
if(!iScreen->ChangeTracking())
{
//the following code will restart animations
STACK_REGION topDiff;
topDiff.Copy(difference);
WS_ASSERT_DEBUG(aTop,EWsPanicRegion);
topDiff.Intersect(*aTop);
difference.SubRegion(topDiff);
iScreen->AddRedrawRegion(topDiff, EFalse, ERedrawTopOnly);
iScreen->AddRedrawRegion(difference, EFalse, ERedrawAll);
topDiff.Close();
}
else if(IsVisible())
{
RestartAnimations(aNewRegion);
}
}
difference.Close();
AbortDsaIfRequired(aNewRegion, aTop);
if (diffs)
{
ResetVisibleRegion();
iVisibleRegion.Copy(aNewRegion);
PossibleVisibilityChangedEvent(EFalse);
if (Redraw()->HasElement())
{
WS_ASSERT_DEBUG(WinType()==EWinTypeClient,EWsPanicWindowType);
if (WinType()==EWinTypeClient)
{
iScreen->WindowElements().SetVisibleRegion(*static_cast<CWsClientWindow*>(this));
}
}
}
// Just because the visible region (screen coordinates) didn't change doesn't
// mean the invalid region (window coordinates) didn't change, so we always call this.
iRedraw->VisibleRegionChange();
}
