sl@0: // Copyright (c) 2007-2009 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: //
sl@0: 
sl@0: #include "directgdiadapter.h"
sl@0: #include "swdirectgdidriverimpl.h"
sl@0: #include "swdirectgdiimagetargetimpl.h"
sl@0: #include <graphics/directgdiimagetarget.h>
sl@0: 
sl@0: // Use on every argument if a method is not implemented yet
sl@0: #define UNUSED(x) {(void)(x); User::Invariant();}
sl@0: 
sl@0: /**
sl@0: Engine constructor.
sl@0: 
sl@0: @param aDriver The driver implementation.
sl@0:  */
sl@0: CSwDirectGdiEngine::CSwDirectGdiEngine(CSwDirectGdiDriverImpl* aDriver):
sl@0: 	iBrushBitmap(),
sl@0: 	iBrushColor(KRgbWhite),
sl@0: 	iBrushOrigin(0,0),
sl@0: 	iBrushStyle(DirectGdi::ENullBrush),
sl@0: 	iDefaultRegion(),
sl@0: 	iDefaultRegionPtr(NULL),
sl@0: 	iDotLength(0),
sl@0: 	iDotMask(0),
sl@0: 	iDotParam(0),
sl@0: 	iDotDirection(1),
sl@0: 	iDrawDevice(NULL),
sl@0: 	iDrawMode(DirectGdi::EDrawModePEN),
sl@0: 	iDriver(aDriver),
sl@0: 	iLinePosition(0,0),
sl@0: 	iOrigin(0,0),
sl@0: 	iPenArray(NULL),
sl@0: 	iPenColor(KRgbBlack),
sl@0: 	iTextShadowColor(KRgbGray),
sl@0: 	iPenSize(1, 1),
sl@0: 	iPenStyle(DirectGdi::ESolidPen)
sl@0: 	{			
sl@0: 	}
sl@0: 
sl@0: CSwDirectGdiEngine::~CSwDirectGdiEngine()
sl@0: 	{
sl@0: 	Deactivate();
sl@0: 	ResetPenArray();
sl@0: 	iClippingRegion.Close();
sl@0: 	iBrushBitmap.Reset();
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: @see MDirectGdiEngine::Activate()
sl@0: 
sl@0: @return KErrNone if successful, otherwise one of the the system-wide error codes.
sl@0: @panic DGDIAdapter 32, if the handle of aTarget is not null, but is not associated with a valid target. 
sl@0: @panic DGDIAdapter 34, if the passed target has a NULL handle (debug only).
sl@0: @panic DGDIAdapter 53, if the passed target has a NULL draw device (debug only).
sl@0: */
sl@0: TInt CSwDirectGdiEngine::Activate(RDirectGdiImageTarget& aTarget) 
sl@0: 	{
sl@0: 	GRAPHICS_ASSERT_DEBUG(aTarget.Handle(), EDirectGdiPanicActivateWithNullHandle);
sl@0: 	GRAPHICS_ASSERT_ALWAYS(iDriver->ValidImageTarget(aTarget.Handle()), EDirectGdiPanicResourceHandleNotFound);
sl@0: 		
sl@0: 	CSwDirectGdiImageTargetImpl* target = reinterpret_cast<CSwDirectGdiImageTargetImpl*>(aTarget.Handle());
sl@0: 	if(iRenderingTarget == target)
sl@0: 		{
sl@0: 		return KErrNone;
sl@0: 		}
sl@0: 
sl@0: 	Deactivate();
sl@0: 	
sl@0: 	iRenderingTarget = target;
sl@0: 	target->Open();	
sl@0: 	iDrawDevice = target->DrawDevice();
sl@0: 	GRAPHICS_ASSERT_DEBUG(iDrawDevice, EDirectGdiPanicActivateWithNullDrawDevice);
sl@0: 	TRect deviceRect;
sl@0: 	iDrawDevice->GetDrawRect(deviceRect);
sl@0: 	iDefaultRegion.Clear();
sl@0: 	iDefaultRegion.AddRect(deviceRect);
sl@0: 	iDefaultRegionPtr = &iDefaultRegion;	
sl@0: 	
sl@0: 	return KErrNone;
sl@0: 	}
sl@0: 
sl@0: /**
sl@0:  Unbinds the drawing engine.
sl@0:  */
sl@0: void CSwDirectGdiEngine::Deactivate()
sl@0: 	{
sl@0: 	if (iRenderingTarget)
sl@0: 		{
sl@0: 		iDriver->Deactivate(iRenderingTarget);
sl@0: 		iDrawDevice = NULL;
sl@0: 		}		
sl@0: 	}
sl@0: 
sl@0: /** 
sl@0: @see MDirectGdiEngine::ExternalizeL()
sl@0: */
sl@0: void CSwDirectGdiEngine::ExternalizeL(RWriteStream& aWriteStream)
sl@0: 	{	
sl@0: 	aWriteStream.WriteUint32L(iDotLength);
sl@0: 	aWriteStream.WriteUint32L(iDotMask);
sl@0: 	aWriteStream.WriteUint32L(iDotParam);
sl@0: 	aWriteStream.WriteUint32L(iDotDirection); 
sl@0: 	aWriteStream << iLinePosition;
sl@0: 	}
sl@0: 
sl@0: /** 
sl@0: @see MDirectGdiEngine::InternalizeL()
sl@0: */
sl@0: void CSwDirectGdiEngine::InternalizeL(RReadStream& aReadStream)
sl@0: 	{	
sl@0: 	iDotLength = aReadStream.ReadUint32L();
sl@0: 	iDotMask = aReadStream.ReadUint32L();
sl@0: 	iDotParam = aReadStream.ReadUint32L();
sl@0: 	iDotDirection = aReadStream.ReadUint32L(); 
sl@0: 	aReadStream >> iLinePosition;
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: @see MDirectGdiEngine::ResetBrushPattern()
sl@0: */
sl@0: void CSwDirectGdiEngine::ResetBrushPattern()
sl@0: 	{
sl@0: 	iBrushBitmap.Reset();
sl@0: 	}
sl@0: 
sl@0: /** 
sl@0: @see MDirectGdiEngine::MoveTo()
sl@0: */
sl@0: void CSwDirectGdiEngine::MoveTo(const TPoint& aPoint)
sl@0: 	{
sl@0: 	iLinePosition = aPoint;
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: @see MDirectGdiEngine::MoveBy()
sl@0: */
sl@0: void CSwDirectGdiEngine::MoveBy(const TPoint& aVector)
sl@0: 	{
sl@0: 	iLinePosition += aVector;
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: @see MDirectGdiEngine::Reset()
sl@0: 
sl@0: @pre Has been called by CDirectGdiContext::Reset()
sl@0: 
sl@0: Most states are set by the context Reset(), only states that can't be set by the context need resetting here.
sl@0: */
sl@0: void CSwDirectGdiEngine::Reset()
sl@0: 	{
sl@0: 	iDotLength = 0;
sl@0: 	iDotMask = 0;
sl@0: 	iDotParam = 0;
sl@0: 	iDotDirection = 1;	
sl@0: 	ResetPenArray();
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: @see MDirectGdiEngine::SetBrushOrigin()
sl@0: */
sl@0: void CSwDirectGdiEngine::SetBrushOrigin(const TPoint& aOrigin)
sl@0: 	{
sl@0: 	iBrushOrigin = aOrigin;
sl@0: 	}
sl@0: 
sl@0: /** 
sl@0: @see MDirectGdiEngine::SetBrushColor()
sl@0:  */
sl@0: void CSwDirectGdiEngine::SetBrushColor(const TRgb& aColor)
sl@0: 	{
sl@0: 	iBrushColor = aColor;
sl@0: 	}
sl@0: 
sl@0: /**	
sl@0: @see MDirectGdiEngine::SetBrushStyle()
sl@0: @panic DGDIAdapter 12, if aStyle is EPatternedBrush but no valid brush bitmap has been set.
sl@0: */
sl@0: void CSwDirectGdiEngine::SetBrushStyle(DirectGdi::TBrushStyle aStyle)
sl@0: 	{
sl@0: 	if (aStyle == DirectGdi::EPatternedBrush)
sl@0: 		{
sl@0: 		GRAPHICS_ASSERT_ALWAYS(iBrushBitmap.Handle() != 0, EDirectGdiPanicPatternedBrushNotSet);
sl@0: 		}
sl@0: 	iBrushStyle = aStyle;
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: @see MDirectGdiEngine::ResetClippingRegion()
sl@0:  */
sl@0: void CSwDirectGdiEngine::ResetClippingRegion()
sl@0: 	{
sl@0: 	iDefaultRegionPtr = &iDefaultRegion;	
sl@0: 	iClippingRegion.Clear();
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: The error state is set to KErrNoMemory if the required memory could not be allocated.
sl@0: 
sl@0: @see MDirectGdiEngine::SetClippingRegion()
sl@0: */
sl@0: void CSwDirectGdiEngine::SetClippingRegion(const TRegion& aRegion)
sl@0: 	{
sl@0: 	TRect boundingRect=iDefaultRegion.BoundingRect();
sl@0: 	boundingRect.iTl-=iDrawOrigin;
sl@0: 	boundingRect.iBr-=iDrawOrigin;
sl@0: 	if (!aRegion.IsContainedBy(boundingRect))
sl@0: 		{
sl@0: 		iDriver->SetError(KErrArgument);
sl@0: 		return;
sl@0: 		}
sl@0: 	
sl@0: 	iClippingRegion.Copy(aRegion);
sl@0: 	
sl@0: 	if (iClippingRegion.CheckError())		
sl@0: 		{
sl@0: 		iDriver->SetError(KErrNoMemory);
sl@0: 		return;
sl@0: 		}
sl@0: 	iClippingRegion.Offset(iDrawOrigin);
sl@0: 	iDefaultRegionPtr = &iClippingRegion;
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: @see MDirectGdiEngine::SetDrawMode()
sl@0: */
sl@0: void CSwDirectGdiEngine::SetDrawMode(DirectGdi::TDrawMode aDrawMode)
sl@0: 	{
sl@0: 	iDrawMode = aDrawMode;
sl@0: 	}
sl@0: 
sl@0: /** 
sl@0: @see MDirectGdiEngine::SetOrigin()
sl@0: */
sl@0: void CSwDirectGdiEngine::SetOrigin(const TPoint& aOrigin)
sl@0: 	{
sl@0: 	iOrigin = aOrigin+iDrawOrigin;
sl@0: 	}
sl@0: 
sl@0: /** 
sl@0: @see MDrawDeviceOrigin::Set()
sl@0: */
sl@0: TInt CSwDirectGdiEngine::Set(const TPoint& aDrawOrigin)
sl@0: 	{
sl@0: 	TPoint moveOrigin=aDrawOrigin;
sl@0: 	moveOrigin-=iDrawOrigin;
sl@0: 	iOrigin+=moveOrigin;
sl@0: 	iClippingRegion.Offset(moveOrigin);
sl@0: 	iDrawOrigin = aDrawOrigin;
sl@0: 	return KErrNone;
sl@0: 	}
sl@0: 
sl@0: /** 
sl@0: @see MDrawDeviceOrigin::Get()
sl@0: */
sl@0: void CSwDirectGdiEngine::Get(TPoint& aDrawOrigin)
sl@0: 	{
sl@0: 	aDrawOrigin=iDrawOrigin;
sl@0: 	}
sl@0: 
sl@0: /** 
sl@0: @see MDirectGdiEngine::SetPenColor()
sl@0:  */
sl@0: void CSwDirectGdiEngine::SetPenColor(const TRgb& aColor)
sl@0: 	{
sl@0: 	iPenColor = aColor;
sl@0: 	}
sl@0: 
sl@0: /** 
sl@0: @see MDirectGdiEngine::SetPenStyle()
sl@0: */
sl@0: void CSwDirectGdiEngine::SetPenStyle(DirectGdi::TPenStyle aStyle)
sl@0: 	{
sl@0: 	iPenStyle = aStyle;	
sl@0: 	switch(iPenStyle)
sl@0: 		{
sl@0: 		case DirectGdi::ENullPen:
sl@0: 			iDotMask=0;
sl@0: 			iDotLength=0;
sl@0: 			break;
sl@0: 		case DirectGdi::EDottedPen:
sl@0: 			iDotMask=1;
sl@0: 			iDotLength=4;
sl@0: 			break;
sl@0: 		case DirectGdi::EDashedPen:
sl@0: 			iDotMask=7;	
sl@0: 			iDotLength=6;
sl@0: 			break;
sl@0: 		case DirectGdi::EDotDashPen:
sl@0: 			iDotMask=113;
sl@0: 			iDotLength=10;
sl@0: 			break;
sl@0: 		case DirectGdi::EDotDotDashPen:
sl@0: 			iDotMask=1809;
sl@0: 			iDotLength=14;
sl@0: 			break;
sl@0: 		case DirectGdi::ESolidPen:
sl@0: 		default:
sl@0: 			iDotMask=1;
sl@0: 			iDotLength=1;
sl@0: 			break;
sl@0: 		};
sl@0: 	iDotParam=0;
sl@0: 	}
sl@0: 
sl@0: /**
sl@0: The error state is set to KErrNoMemory if the required memory could not be allocated.
sl@0: 
sl@0: @see MDirectGdiEngine::SetPenSize()
sl@0: 
sl@0: @pre aSize is not the same as iPenSize.
sl@0: */
sl@0: void CSwDirectGdiEngine::SetPenSize(const TSize& aSize)
sl@0: 	{
sl@0: 	iPenSize = aSize;
sl@0: 
sl@0: 	if ((iPenSize.iWidth >= 1) || (iPenSize.iHeight >= 1))
sl@0: 		{
sl@0: 		TInt err = PenAllocate();
sl@0: 		iDriver->SetError(err);
sl@0: 		}
sl@0: 	else
sl@0: 		{
sl@0: 		ResetPenArray();
sl@0: 		}
sl@0: 
sl@0: 	iDotParam = 0;
sl@0: 	}
sl@0: 
sl@0: /** 
sl@0: @see MDirectGdiEngine::SetBrushPattern()
sl@0: 
sl@0: @pre aPattern is a valid bitmap.
sl@0: */
sl@0: TInt CSwDirectGdiEngine::SetBrushPattern(const CFbsBitmap& aPattern)
sl@0: 	{			
sl@0: 	if (aPattern.ExtendedBitmapType() != KNullUid)
sl@0: 		{
sl@0: 		return KErrNotSupported; // Not supported for extended bitmaps		
sl@0: 		}
sl@0: 	
sl@0: 	return iBrushBitmap.Duplicate(aPattern.Handle());
sl@0: 	}
sl@0: 
sl@0: 
sl@0: