void CWsDirectScreenAccess::GetRegion(TInt aNumRects)
{
#if defined(_DEBUG)
if (iStatus!=EDirectStatusInitialising)
iWsOwner->PPanic(EWservPanicDirectMisuse);
#endif
STACK_REGION region;
iWin->GenerateTopRegion(region);
const TInt regionCount=region.Count();
if (region.Count()==aNumRects)
{
iVisible.Copy(region);
if (iVisible.CheckError())
{
iStatus=EDirectStatusNone;
SetReply(KErrNotReady);
}
else
{
TPtrC8 rectList(REINTERPRET_CAST(const TUint8*,region.RectangleList()),region.Count()*sizeof(TRect));
CWsClient::ReplyBuf(rectList);
iStatus=EDirectStatusRunning;
Initiate();
iMsgQueue->Started();
SetReply(KMaxTInt);
}
}
void CWsBackedUpWindow::Scroll(const TRect &aClipRect, const TPoint &aOffset,const TRect &aRect)
{
TRect winBorder=TRect(iWsWin->Size());
TRect clipRect=aClipRect;
TRect srcRect = aRect;
clipRect.Intersection(winBorder);
if (!clipRect.IsEmpty())
{ // If we have to do something (a visible part will change)
srcRect.Intersection(clipRect);
STACK_REGION regionToClear;
regionToClear.AddRect(aRect);
regionToClear.SubRect(srcRect);
regionToClear.Offset(aOffset);
ActivateGc();
iBitGc->SetClippingRect(clipRect);
iBitGc->SetDrawMode(CGraphicsContext::EDrawModeWriteAlpha);
iBitGc->CopyRect(aOffset,srcRect);
for (TInt k=0;k<regionToClear.Count();k++)
{
iBitGc->Clear(regionToClear[k]);
}
iBitGc->SetClippingRect(winBorder);
iBitGc->SetDrawMode(CGraphicsContext::EDrawModePEN);
TRegionFix<1> fixRegion(iWsWin->AbsRect());
UpdateScreen(fixRegion);
regionToClear.Close();
}
}
void CWsDirectScreenAccess::Request(TInt handle)
{
if (iStatus!=EDirectStatusNone)
{
if (iStatus==EDirectStatusCompleted)
{
iMsgQueue->Cancel();
}
else
{
iWsOwner->PPanic(EWservPanicDirectMisuse);
}
}
iWsOwner->HandleToClientWindow(handle,&iWin);
iScreen=iWin->Screen();
STACK_REGION region;
iWin->GenerateTopRegion(region);
const TInt regionCount=region.Count();
region.Close();
SetReply(regionCount);
iStatus=EDirectStatusInitialising;
}
