sl@0: // Copyright (c) 1995-2009 Nokia Corporation and/or its subsidiary(-ies).
sl@0: // All rights reserved.
sl@0: // This component and the accompanying materials are made available
sl@0: // under the terms of "Eclipse Public License v1.0"
sl@0: // which accompanies this distribution, and is available
sl@0: // at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: //
sl@0: // Initial Contributors:
sl@0: // Nokia Corporation - initial contribution.
sl@0: //
sl@0: // Contributors:
sl@0: //
sl@0: // Description:
sl@0: // Window redraw code, three sorts of redrawing are supported
sl@0: // Sending a redraw message to the client (see redrawmsgwindow.cpp)
sl@0: // Drawing from backup bitmap
sl@0: // Simply clearing the window
sl@0: // 
sl@0: //
sl@0: 
sl@0: #include "wnredraw.h"
sl@0: #include "server.h"
sl@0: #include "playbackgc.h"
sl@0: #include "wstop.h"
sl@0: #include "ANIM.H"
sl@0: #include "EVQUEUE.H"
sl@0: #include "offscreenbitmap.h"
sl@0: #include <s32mem.h>
sl@0: #include <gdi.h>
sl@0: #include "panics.h"
sl@0: #include "inifile.h"
sl@0: #include "rootwin.h"
sl@0: #include "EVENT.H"
sl@0: #include "wstypes.h"
sl@0: 
sl@0: struct TFadingParams
sl@0: 	{
sl@0: 	TUint8 blackMap;
sl@0: 	TUint8 whiteMap;
sl@0: 	};
sl@0: 
sl@0: CWsWindowRedraw::CWsWindowRedraw(CWsWindow *aWin) : iWsWin(aWin)
sl@0: 	{
sl@0: 	}
sl@0: 
sl@0: CWsWindowRedraw::~CWsWindowRedraw()
sl@0: 	{
sl@0: 	if (iWsWin->WsOwner())
sl@0: 		{
sl@0: 		iWsWin->WsOwner()->RedrawQueue()->RemoveInvalid(this);
sl@0: 		}
sl@0: 	}
sl@0: 
sl@0: void CWsWindowRedraw::ConstructL()
sl@0: 	{
sl@0: 	}
sl@0: 
sl@0: void CWsWindowRedraw::ClipInvalidRegion(const TRect &)
sl@0: 	{
sl@0: 	}
sl@0: 
sl@0: void CWsWindowRedraw::Resize(const TSize &, const TSize &)
sl@0: 	{
sl@0: 	}
sl@0: 
sl@0: void CWsWindowRedraw::SetReply(TInt aReply)
sl@0: 	{
sl@0: 	iWsWin->WsOwner()->SetReply(aReply);
sl@0: 	}
sl@0: 
sl@0: void CWsWindowRedraw::OwnerPanic(TClientPanic aPanic)
sl@0: 	{
sl@0: 	iWsWin->OwnerPanic(aPanic);
sl@0: 	}
sl@0: 
sl@0: CWsBackedUpWindow *CWsWindowRedraw::Backup() const
sl@0: 	{
sl@0: 	return(NULL);
sl@0: 	}
sl@0: 
sl@0: void CWsWindowRedraw::Scroll(const TRect &, const TPoint &,const TRect &)
sl@0: 	{
sl@0: 	}
sl@0: 
sl@0: void CWsWindowRedraw::UpdateAnimArea()
sl@0: 	{
sl@0: 	}
sl@0: 
sl@0: void CWsWindowRedraw::PrepareForResizeL(const TSize &, TSize &)
sl@0: 	{
sl@0: 	}
sl@0: 
sl@0: TBool CWsWindowRedraw::DrawCommand(CWsGc*,const TAny*)
sl@0: 	{
sl@0: 	return ETrue;
sl@0: 	}
sl@0: 
sl@0: void CWsWindowRedraw::GcAttributeChange(CWsGc*,const TAny*)
sl@0: 	{
sl@0: 	}
sl@0: 
sl@0: void CWsWindowRedraw::GcDeactivate(CWsGc*)
sl@0: 	{
sl@0: 	}
sl@0: 
sl@0: CFbsDevice* CWsWindowRedraw::OutputDevice() const
sl@0: 	{
sl@0: 	return iWsWin->Screen()->GetFbsDevice();
sl@0: 	}
sl@0: 
sl@0: void CWsWindowRedraw::ClientExposing()
sl@0: 	{
sl@0: 	}
sl@0: 
sl@0: void CWsWindowRedraw::ClearRedrawStore(TBool)
sl@0: 	{}
sl@0: 
sl@0: void CWsWindowRedraw::PreDrawWindow(CFbsBitGc* aGc, const TRegion &aRegion)
sl@0: 	{
sl@0: 	WS_ASSERT_DEBUG(iGlobalRedrawRegion == NULL, EWsPanicScheduledRedraw);
sl@0: 	iGlobalRedrawRegion = &aRegion;
sl@0: 	CPlaybackGc::Instance()->SetTargetRegion(iGlobalRedrawRegion);
sl@0: 	CWsClient::iCurrentCommand.iOpcode=0; // Andy - urgh - loose me please
sl@0: 	CPlaybackGc::Instance()->Activate(CliWin(), aGc, iGlobalRedrawRegion);
sl@0: 	}
sl@0: 
sl@0: void CWsWindowRedraw::PostDrawWindow(CFbsBitGc* aGc)
sl@0: 	{	
sl@0: 	if(CWsTop::IsFadeEnabled() && iWsWin->FadeCount()>0 && !iWsWin->IsNonFading())
sl@0: 		{
sl@0: 		//x86gcc compiler needs this syntax to perform 
sl@0: 		//multiple inheritance duplicate common base class declaration resolution
sl@0: 		//combined with the template resolution.
sl@0: 		MWsGc* objectInterfaceResolver=CPlaybackGc::Instance();
sl@0: 		MWsFader* fader = objectInterfaceResolver->ObjectInterface<MWsFader>();
sl@0: 		if(fader)
sl@0: 			{
sl@0: 	      	TFadingParams parameters;
sl@0: 	      	iWsWin->GetFadingParams(parameters.blackMap,parameters.whiteMap);
sl@0: 	      	TPckgBuf<TFadingParams> buf(parameters);
sl@0: 	      	fader->SetFadingParameters(buf);
sl@0: 	      	// Only fade the region that hasn't been faded before
sl@0:       		STACK_REGION fdRgn;
sl@0:       		fdRgn.Copy( *iGlobalRedrawRegion );
sl@0:       		fdRgn.Intersect( iWsWin->FadableRegion() );
sl@0:       		fader->FadeArea( aGc, &fdRgn );
sl@0:       		fdRgn.Close();
sl@0: 	      	}
sl@0: 		}
sl@0: 
sl@0: 	CPlaybackGc::Instance()->Deactivate();
sl@0: 	
sl@0: 	WS_ASSERT_DEBUG(iGlobalRedrawRegion, EWsPanicScheduledRedraw);
sl@0: 	DrawAnims(aGc, *iGlobalRedrawRegion);
sl@0: 	
sl@0: 	CPlaybackGc::Instance()->SetTargetRegion(NULL);
sl@0: 	iGlobalRedrawRegion = 0;
sl@0: 	}
sl@0: 	
sl@0: void CWsWindowRedraw::DrawAnims(CFbsBitGc * aGc, const TRegion& aRegion)
sl@0: 	{
sl@0: 	if (iWsWin->iAnimList)
sl@0: 		{
sl@0: 		// If an anim panics, it will leave and set the panic flag on the client
sl@0: 		// The client itself won't actually panic yet, and we don't want to leave from here.
sl@0: 		TRAP_IGNORE(DrawAnimsL(aGc, aRegion));
sl@0: 		}
sl@0: 
sl@0: 	// Draw standard text cursor if required
sl@0: 	RWsTextCursor* const cursor = CWsTop::CurrentTextCursor();
sl@0: 	if (cursor && cursor->Win() == iWsWin && cursor->IsStandardCursorActive())
sl@0: 		{
sl@0: 		// Standard text cursor is active on this window
sl@0: 		const TBool flashing = cursor->IsFlashing();
sl@0: 		TFlashState flashState = EFlashOff;
sl@0: 		if (flashing)
sl@0: 			{
sl@0: 			flashState = Screen()->SpriteManager()->CurrentCursorFlashState();
sl@0: 			}
sl@0: 		if (flashState == EFlashOn || !flashing)
sl@0: 			{
sl@0: 			// Cursor should be visible, so draw it
sl@0: 			aGc->Reset();
sl@0: 			cursor->Draw(aGc, aRegion);
sl@0: 			}
sl@0: 		if (flashing)
sl@0: 			{
sl@0: 			// Reschedule to flash the standard cursor on or off
sl@0: 			Screen()->ScheduleAnimation(cursor->RectRelativeToScreen(), Screen()->SpriteManager()->NextCursorFlashStateChange(), 0, 0);
sl@0: 			}
sl@0: 		}
sl@0: 
sl@0: 	for (CWsSpriteBase * sprite = iWsWin->iSpriteList; sprite; sprite = sprite->Next())
sl@0: 		{
sl@0: 		aGc->Reset();
sl@0: 		sprite->Redraw(aGc, aRegion);
sl@0: 		}
sl@0: 	}
sl@0: 
sl@0: void CWsWindowRedraw::DrawAnimsL(CFbsBitGc * aGc, const TRegion& aRegion)
sl@0: 	{
sl@0: 	for (CWsAnim * anim = iWsWin->iAnimList; anim; anim = anim->Next())
sl@0: 		{
sl@0: 		// This can leave
sl@0: 		TRAPD(err,anim->Redraw(aGc, &aRegion));
sl@0: 		if(err!=KErrNone)
sl@0: 			{
sl@0: 			anim->Panic(EWservPanicAnimLeave);
sl@0: 			}
sl@0: 		}
sl@0: 	}
sl@0: 
sl@0: TBool CWsWindowRedraw::Contains(const TArray<TGraphicDrawerId>& /*aDrawers*/,const TRegion& aRegion) const
sl@0: 	{
sl@0: 	// if in doubt, assume we do
sl@0: 	return !aRegion.IsEmpty();
sl@0: 	}
sl@0: 
sl@0: TInt CWsWindowRedraw::DrawBackgroundColor(const TRegion* aRegion)
sl@0: 	{
sl@0: 	if(Screen()->BltOffScreen())
sl@0: 		{
sl@0: 		return KErrNone;
sl@0: 		}
sl@0: 	TRgb col = BackColor();
sl@0: 	if (col.Alpha() == 0)
sl@0: 		{
sl@0: 		return KErrNone;
sl@0: 		}
sl@0: 	TRect abs(CliWin()->AbsRect());
sl@0: 	abs.Move(-CliWin()->Origin());
sl@0: 	TBuf8<sizeof(TRect)> cmd;
sl@0: 	cmd.Copy(reinterpret_cast<TUint8*>(&abs),sizeof(TRect));
sl@0: 	CPlaybackGc::Instance()->BitGc().SetClippingRegion(aRegion);
sl@0: 	CPlaybackGc::Instance()->BitGc().SetBrushColor(col);
sl@0: 	CPlaybackGc::Instance()->BitGc().SetBrushStyle(CGraphicsContext::ESolidBrush);
sl@0: 	CPlaybackGc::Instance()->BitGc().SetPenStyle(CGraphicsContext::ENullPen);
sl@0: 	// Andy - this is pretty ridiculous - can't we just draw using the gc?
sl@0: 	TRAPD(err,CPlaybackGc::Instance()->CommandL(EWsGcOpDrawRect, cmd));		//Should not leave ###
sl@0: 	CPlaybackGc::Instance()->BitGc().SetDrawMode(CGraphicsContext::EDrawModePEN);
sl@0: 	CPlaybackGc::Instance()->BitGc().CancelClippingRegion();
sl@0: 	return err;
sl@0: 	}
sl@0: 
sl@0: TBool CWsWindowRedraw::ReleaseMemory(MWsMemoryRelease::TMemoryReleaseLevel)
sl@0: 	{
sl@0: 	return EFalse;
sl@0: 	}
sl@0: 
sl@0: void CWsWindowRedraw::VisibleRegionChange()
sl@0: 	{
sl@0: 	}
sl@0: 	
sl@0: TBool CWsWindowRedraw::ReadyToDraw() const
sl@0: 	{
sl@0: 	return ETrue;
sl@0: 	}
sl@0: 
sl@0: void CWsWindowRedraw::WindowClosing()
sl@0: 	{}
sl@0: 	
sl@0: //
sl@0: // Blank up window //
sl@0: //
sl@0: 
sl@0: CWsBlankWindow::CWsBlankWindow(CWsWindow *aWin) : CWsWindowRedraw(aWin), iColor(iWsWin->RootWindow()->DefaultBackgroundColor()), iNoColor(EFalse)
sl@0: 	{
sl@0: 	}
sl@0: 
sl@0: CWsBlankWindow::~CWsBlankWindow()
sl@0: 	{
sl@0: 	}
sl@0: 
sl@0: void CWsBlankWindow::SetColor(TRgb aColor)
sl@0: 	{
sl@0: 	iColor=aColor;
sl@0: 	iNoColor=EFalse;
sl@0: 	Screen()->AddRedrawRegion(iWsWin->VisibleRegion());
sl@0: 	}
sl@0: 
sl@0: TBool CWsBlankWindow::CommandL(TInt aOpcode, TWsWinCmdUnion &aCmd)
sl@0: 	{
sl@0: 	switch(aOpcode)
sl@0: 		{
sl@0: 		case EWsWinOpSetColor:
sl@0: 			SetColor(*aCmd.rgb);
sl@0: 			break;
sl@0: 		case EWsWinOpSetNoBackgroundColor:
sl@0: 			SetBackgroundClear();
sl@0: 			break;
sl@0: 		default:
sl@0: 			return(EFalse);
sl@0: 		}
sl@0: 	return(ETrue);
sl@0: 	}
sl@0: 
sl@0: TRgb CWsBlankWindow::BackColor() const
sl@0: 	{
sl@0: 	return(iColor);
sl@0: 	}
sl@0: 
sl@0: TBool CWsBlankWindow::GetRedrawRect(TRect &) const
sl@0: 	{
sl@0: 	if (!iNoColor || iWsWin->iAnimList)
sl@0: 		iWsWin->Screen()->AddRedrawRegion(iWsWin->VisibleRegion());
sl@0: 	return(EFalse);
sl@0: 	}
sl@0: 
sl@0: TBool CWsBlankWindow::NeedsRedraw() const
sl@0: 	{
sl@0: 	return(EFalse);
sl@0: 	}
sl@0: 
sl@0: void CWsBlankWindow::DrawWindow()
sl@0: 	{
sl@0: 	if (!iNoColor)
sl@0: 		{
sl@0: 		DrawBackgroundColor(iGlobalRedrawRegion);
sl@0: 		}
sl@0: 	}