sl@0: // Copyright (c) 2008-2009 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 "scrdevextension.h"
sl@0: #include "../SERVER/w32cmd.h"
sl@0: #include <graphics/displaycontrolbase.h>
sl@0: #include "CLIENT.H"
sl@0: #include "w32comm.h"
sl@0: 
sl@0: CWsScreenDevice::CScrDevExtension::CScrDevExtension(RWsBuffer *aBuffer,TInt32 aWsHandle):	MWsClientClass(aBuffer)
sl@0: 	{
sl@0: 	iWsHandle=aWsHandle;
sl@0: 	__ASSERT_DEBUG(aBuffer,Panic(EW32PanicBadClientInterface));
sl@0: 	__ASSERT_DEBUG(aWsHandle,Panic(EW32PanicBadClientInterface));
sl@0: 	}
sl@0: 
sl@0: CWsScreenDevice::CScrDevExtension::~CScrDevExtension()
sl@0: 	{
sl@0: 	//typeface store is not owned by this class, and is created/destroyed in CWsScreenDevice
sl@0: 	}
sl@0: /** Interface Extension capability
sl@0:  * 	Use of this interface going forward will allow the published client interface to be dynamically extended.
sl@0:  * 	Note that the pointer returned is only good for the lifetime of the called CBase derived object.
sl@0:  * 	@pre	caller has already checked that the implementation is initialised using RepeatableConstruct
sl@0:  *	@param  aInterfaceId	uniqueid or well known id of interface
sl@0:  * 	@return	pointer to interface object matching this ID or NULL if no match.
sl@0:  **/
sl@0: void* CWsScreenDevice::CScrDevExtension::GetInterface(TUint aInterfaceId)
sl@0: 	{
sl@0: 	if (RepeatableConstruct()<KErrNone)
sl@0: 		{
sl@0: 		return NULL;
sl@0: 		}
sl@0: 	__ASSERT_DEBUG(this!=NULL,Panic(EW32PanicBadClientInterface));
sl@0: 	__ASSERT_DEBUG(iBuffer,Panic(EW32PanicBadClientInterface));
sl@0: 	__ASSERT_DEBUG(iWsHandle!=NULL,Panic(EW32PanicBadClientInterface));
sl@0: 	
sl@0: 	switch (aInterfaceId)
sl@0: 		{
sl@0: 		case MDisplayControlBase::ETypeId:
sl@0: 			if (iSupportedExtensionsBits&TWsSdXDisplayControl)
sl@0: 				{
sl@0: 				return static_cast<MDisplayControlBase*>(this);
sl@0: 				}
sl@0: 			break;
sl@0: 		case MDisplayControl::ETypeId:
sl@0: 			if (iSupportedExtensionsBits&TWsSdXDisplayControl)
sl@0: 				{
sl@0: 				return static_cast<MDisplayControl*>(this);
sl@0: 				}
sl@0: 			break;
sl@0: 		case MDisplayMappingBase::ETypeId:
sl@0: 			if(iSupportedExtensionsBits&TWsSdXDisplayMapping)
sl@0: 				{
sl@0: 				return static_cast<MDisplayMappingBase*>(this);
sl@0: 				}
sl@0: 			break;
sl@0: 		case MDisplayMapping::ETypeId:
sl@0: 			if(iSupportedExtensionsBits&TWsSdXDisplayMapping)
sl@0: 				{
sl@0: 				return static_cast<MDisplayMapping*>(this);
sl@0: 				}
sl@0: 			break;
sl@0: 		case MTestScreenCapture::ETypeId:
sl@0: 			{
sl@0: 			TInt requiredIf = TWsSdXDebugComposition | TWsSdXDisplayMapping;
sl@0: 			if ((iSupportedExtensionsBits & requiredIf) == requiredIf)
sl@0: 				{
sl@0: 				return static_cast<MTestScreenCapture*>(this);
sl@0: 				}
sl@0: 			break;
sl@0: 			}
sl@0: 		default:
sl@0: 			break;
sl@0: 		}
sl@0: 	return NULL;
sl@0: }
sl@0: //Accessor to typeface store instance
sl@0: CFbsTypefaceStore* CWsScreenDevice::CScrDevExtension::TypefaceStore()
sl@0: 	{
sl@0: 	return iTypefaceStore;
sl@0: 	}
sl@0: //Accessor to typeface store instance
sl@0: void  CWsScreenDevice::CScrDevExtension::SetTypefaceStore(CFbsTypefaceStore* aTypeFaceStore)
sl@0: 	{
sl@0: 	iTypefaceStore=aTypeFaceStore;
sl@0: 	}
sl@0: 
sl@0: /**
sl@0:  * Constructs the extension interface implementation, or returns error if interface is not available.
sl@0:  * After success, the interface is then always available and is not re-constructed if method called again, 
sl@0:  * but after failure the construct attempt will be repeated (and fail again) if the method is called again.
sl@0:  * Clients would be expected to make then keep a pointer to this interface, not get new ones repeatedly. 
sl@0:  * Note that if the extension was not allocated, then "this" could be NULL
sl@0:  * @param aWsHandle	server-side object handle to use in messages if first time
sl@0:  * @return KErrNone if initialised correctly, or a standard error code.
sl@0:  **/
sl@0: TInt CWsScreenDevice::CScrDevExtension::RepeatableConstruct()
sl@0: 	{
sl@0: 	if (this==NULL)
sl@0: 		{
sl@0: 		return KErrNoMemory;	//The extension was not allocated. Making this call is bad!
sl@0: 		}
sl@0: 	__ASSERT_DEBUG(iBuffer,Panic(EW32PanicBadClientInterface));
sl@0: 	__ASSERT_DEBUG(iWsHandle,Panic(EW32PanicBadClientInterface));
sl@0: 	if (iSupportedExtensionsBits==0)
sl@0: 		{	//need to initialise
sl@0: 		TInt	ExtensionsOrError=	WriteReply(EWsSdOpExtensionsSupported);
sl@0: 		if (ExtensionsOrError&TWsSdXReservedErrorFlag)
sl@0: 			{
sl@0: 			//Server is allowed to report that lower level drivers did not support dynamic screen res.
sl@0: 			//Any other error is unexpected
sl@0: 			__ASSERT_DEBUG(ExtensionsOrError==KErrExtensionNotSupported,Panic(EW32PanicBadClientInterface));
sl@0: 			ExtensionsOrError=TWsSdXReservedErrorFlag;
sl@0: 			return ExtensionsOrError;
sl@0: 			}
sl@0: 		else
sl@0: 			{
sl@0: 			iSupportedExtensionsBits=ExtensionsOrError;
sl@0: 			}
sl@0: 		}
sl@0: 	return KErrNone;
sl@0: 	}
sl@0: 
sl@0: TInt CWsScreenDevice::CScrDevExtension::NumberOfResolutions() const
sl@0: 	{
sl@0: 	__ASSERT_DEBUG(iSupportedExtensionsBits&TWsSdXDisplayControl,Panic(EW32PanicBadClientInterface));
sl@0: 	TInt	numResOrError=WriteReply(EWsSdOpXDcGetNumberOfResolutions);
sl@0: 	return numResOrError;
sl@0: 	}
sl@0: 
sl@0: TInt CWsScreenDevice::CScrDevExtension::FillResolutionArray(TInt aNumOfRes, RArray<TResolution>& aResolutions) const
sl@0: 	{
sl@0: 	TInt arrayMaxSize=aResolutions.Count();
sl@0: 	if (arrayMaxSize < aNumOfRes)
sl@0: 		{
sl@0: 		//Array is too small or not initialized
sl@0: 		TResolution emptyRes(TSize(0,0),TSize(0,0));	//ARM BUILD needs this form of constructor!
sl@0: 		for (TInt index = 0;index < aNumOfRes-arrayMaxSize;index++)
sl@0: 			aResolutions.Append(emptyRes);
sl@0: 	
sl@0: 		//reset arrayMaxSize
sl@0: 		arrayMaxSize = aNumOfRes;
sl@0: 		}
sl@0: 	//Else array is large enough.
sl@0: 
sl@0: 	TPtr8 pArr((TUint8*)&aResolutions[0],arrayMaxSize*sizeof(TResolution),arrayMaxSize*sizeof(TResolution));
sl@0: 	return WriteReplyP(NULL,0,TWriteDescriptorType(&pArr),EWsSdOpXDcGetResolutionsList);
sl@0: 	}
sl@0: TInt CWsScreenDevice::CScrDevExtension::GetResolutions(RArray<TResolution>& aResolutions) const
sl@0: 	{
sl@0: 	TInt result;
sl@0: 	__ASSERT_DEBUG(iSupportedExtensionsBits&TWsSdXDisplayControl,Panic(EW32PanicBadClientInterface));
sl@0: 	
sl@0: 	TInt resCount=WriteReply(EWsSdOpXDcGetNumberOfResolutions);
sl@0: 	if(resCount < KErrNone)
sl@0: 		{
sl@0: 		return resCount;
sl@0: 		}
sl@0: 	
sl@0: 	result=aResolutions.Reserve(resCount);
sl@0: 	if (result<KErrNone)
sl@0: 		{
sl@0: 		return result;	//Failed - probably KErrNoMemory
sl@0: 		}
sl@0: 	
sl@0: 	if(resCount > 0)
sl@0: 		{
sl@0: 		result = FillResolutionArray(resCount, aResolutions);
sl@0: 		if (result<KErrNone)
sl@0: 			{
sl@0: 			return result;	//Content of the array is "undefined"
sl@0: 			}
sl@0: 		__ASSERT_DEBUG((result%sizeof(TResolution))==0,Panic(EW32PanicSizeNotExpected));
sl@0: 		result=result/sizeof(TResolution);
sl@0: 		
sl@0: 		if(result > aResolutions.Count())
sl@0: 			{
sl@0: 			//The resolution list at server side is larger and can't fit in client buffer we supplied
sl@0: 			//The Content of the array is undefined at this point. 
sl@0: 			//Give it one more try
sl@0: 			result = FillResolutionArray(result, aResolutions);
sl@0: 			if(result < KErrNone)
sl@0: 				{
sl@0: 				return result;
sl@0: 				}
sl@0: 			__ASSERT_DEBUG((result%sizeof(TResolution))==0,Panic(EW32PanicSizeNotExpected));
sl@0: 			result=result/sizeof(TResolution);
sl@0: 			
sl@0: 			if(result > aResolutions.Count()) 
sl@0: 				{//give up
sl@0: 				return KErrCorrupt; //which means resolution list is changing during the process of getting it 
sl@0: 				}
sl@0: 			}
sl@0: 		
sl@0: 		TInt arrayMaxSize = aResolutions.Count();
sl@0: 		while(result<arrayMaxSize)
sl@0: 			{
sl@0: 			aResolutions.Remove(--arrayMaxSize);
sl@0: 			}
sl@0: 		}
sl@0: 	else
sl@0: 		{
sl@0: 		aResolutions.Reset(); //There's not available resolutions
sl@0: 		}
sl@0: 	return KErrNone;	//Content of array is good.
sl@0: 	}
sl@0: 
sl@0: void CWsScreenDevice::CScrDevExtension::GetConfiguration(TDisplayConfiguration& aConfig) const
sl@0: 	{
sl@0: 	__ASSERT_DEBUG(iSupportedExtensionsBits&TWsSdXDisplayControl,Panic(EW32PanicBadClientInterface));
sl@0: 	TInt currentVersion = aConfig.Version();
sl@0: 	if (sizeof(TDisplayConfiguration)<currentVersion)
sl@0: 		currentVersion = sizeof(TDisplayConfiguration);
sl@0: 	TPtr8 displayPtr((TUint8 *)&aConfig, currentVersion);
sl@0: 	WriteReplyP(&aConfig, sizeof(TDisplayConfiguration), &displayPtr, EWsSdOpXDcGetConfiguration);
sl@0: 	}
sl@0: TInt CWsScreenDevice::CScrDevExtension::SetConfiguration(const TDisplayConfiguration& aConfig)
sl@0: 	{
sl@0: 	__ASSERT_DEBUG(iSupportedExtensionsBits&TWsSdXDisplayControl,Panic(EW32PanicBadClientInterface));
sl@0: 	TInt currentVersion = aConfig.Version();
sl@0: 	if (TDisplayConfiguration().Version()<currentVersion)
sl@0: 		currentVersion = TDisplayConfiguration().Version();
sl@0: 	TInt reply=WriteReply(&aConfig, sizeof(TDisplayConfiguration), EWsSdOpXDcSetConfiguration);
sl@0: 	return reply;
sl@0: 	}
sl@0: TInt CWsScreenDevice::CScrDevExtension::PreferredDisplayVersion() const
sl@0: 	{
sl@0: 	__ASSERT_DEBUG(iSupportedExtensionsBits&TWsSdXDisplayControl,Panic(EW32PanicBadClientInterface));
sl@0: 	TInt reply=WriteReply(EWsSdOpXDcGetPreferredDisplayVersion);
sl@0: 	return reply;
sl@0: 	}
sl@0: 
sl@0: TBool CWsScreenDevice::CScrDevExtension::DisplayChangeEventsEnabled() const
sl@0: 	{
sl@0: 	__ASSERT_DEBUG(iSupportedExtensionsBits&TWsSdXDisplayControl,Panic(EW32PanicBadClientInterface));
sl@0: 	if(WriteReply(EWsSdOpXDcDisplayChangeEventEnabled))
sl@0: 		return ETrue;
sl@0: 	return EFalse;
sl@0: 	}
sl@0: void CWsScreenDevice::CScrDevExtension::EnableDisplayChangeEvents(TBool aEnable)
sl@0: 	{
sl@0: 	__ASSERT_DEBUG(iSupportedExtensionsBits&TWsSdXDisplayControl,Panic(EW32PanicBadClientInterface));
sl@0: 	if(aEnable)
sl@0: 		Write(EWsSdOpXDcNotifyOnDisplayChange);
sl@0: 	else
sl@0: 		Write(EWsSdOpXDcNotifyOnDisplayChangeCancel);
sl@0: 	}
sl@0: TInt CWsScreenDevice::CScrDevExtension::MapCoordinates(TCoordinateSpace aSourceSpace, const TRect& aSource, TCoordinateSpace aTargetSpace, TRect& aTarget) const
sl@0: 	{
sl@0: 	TWsSdCmdMapCoordinates cmdMapCoord(aSource, aSourceSpace, aTargetSpace);
sl@0: 	TPtr8 targetRectPtr((TUint8 *)&aTarget, sizeof(TRect));
sl@0: 	TInt reply = WriteReplyP(&cmdMapCoord, sizeof(TWsSdCmdMapCoordinates), &targetRectPtr, EWsSdOpXDmMapExtent);
sl@0: 	return reply;
sl@0: 	}
sl@0: 
sl@0: void CWsScreenDevice::CScrDevExtension::GetMaximumWindowExtent(TRect& aExtent) const	
sl@0: 	{
sl@0: 	TDisplayConfiguration config;
sl@0: 	GetConfiguration(config);
sl@0: 	aExtent.SetRect(0,0,0,0);
sl@0: 	if(config.IsDefined(TDisplayConfigurationBase::EResolution))
sl@0: 		{
sl@0: 		TSize fullUiSize;
sl@0: 		config.GetResolution(fullUiSize);
sl@0: 		TRect fullUiRect(TPoint(0,0), fullUiSize);
sl@0: 		aExtent=fullUiRect;
sl@0: #ifdef _DEBUG
sl@0: 		TInt err = 
sl@0: #endif
sl@0: 			MapCoordinates(EFullScreenSpace, fullUiRect, EApplicationSpace, aExtent);
sl@0: 		//This should NOT fail even if display is detached/disabled.
sl@0: 		__ASSERT_DEBUG(err>=KErrNone, Panic(EW32PanicBadClientInterface));
sl@0: 		} 
sl@0: 	}
sl@0: void CWsScreenDevice::CScrDevExtension::GetMaximumSurfaceSize(TSize& aPixels, TSize& aTwips) const
sl@0: 	{
sl@0: 	TDisplayConfiguration config;
sl@0: 	GetConfiguration(config);
sl@0: 	TInt err = KErrGeneral;
sl@0: 	TSize fullUiSize;
sl@0: 	aPixels=fullUiSize;
sl@0: 	aTwips=fullUiSize;
sl@0: 	if(config.IsDefined(TDisplayConfigurationBase::EResolution))
sl@0: 		{
sl@0: 		config.GetResolution(fullUiSize);
sl@0: 		TRect fullUiRect(TPoint(0,0), fullUiSize);
sl@0: 		TRect compositionRect;
sl@0: 		err = MapCoordinates(EFullScreenSpace, fullUiRect, ECompositionSpace, compositionRect);
sl@0: 		//This WILL fail if display is detached/disabled.
sl@0: 		if(err == KErrNone)
sl@0: 			{
sl@0: 			aPixels = compositionRect.Size();
sl@0: 			}
sl@0: 		}
sl@0: 	if(config.IsDefined(TDisplayConfigurationBase::EResolutionTwips))
sl@0: 		{
sl@0: 		config.GetResolutionTwips(aTwips);
sl@0: 		}
sl@0: 	//Why can't this function return an error?
sl@0: 	//In case of error the return values will be empty. 
sl@0: 	}
sl@0: 
sl@0: void CWsScreenDevice::CScrDevExtension::GetDisplayExtentOfWindow(const RWindowBase& aWindow, TRect& aExtent) const
sl@0: 	{
sl@0: 	TRect winRect(aWindow.AbsPosition(), aWindow.Size());
sl@0: 	aExtent.SetRect(0,0,0,0);
sl@0: 	TInt err = MapCoordinates(EApplicationSpace, winRect, ECompositionSpace, aExtent);
sl@0: 	//This WILL fail if display is detached/disabled.
sl@0: 	//Why can't this function return an error?
sl@0: 	//In case of error the return values will be empty. 
sl@0: 	}
sl@0: 
sl@0: TInt CWsScreenDevice::CScrDevExtension::TranslateExtent(const TRect& aInitial, TRect& aTarget) const
sl@0: 	{
sl@0: 	TPckgBuf<TRect> rectRes;
sl@0: 	TWsScsComposeScreenCommand translateExtentCmd(EWsScsTranslateExtent, aInitial);
sl@0: 	TInt ret = WriteReplyP(&translateExtentCmd, sizeof(translateExtentCmd), &rectRes, EWsSdOpXTestScreenCapture);
sl@0: 	if (ret == KErrNone)
sl@0: 		{
sl@0: 		aTarget=rectRes();
sl@0: 		}
sl@0: 	return ret;
sl@0: 	}
sl@0: 
sl@0: TInt CWsScreenDevice::CScrDevExtension::GetCompositedSize(TSize& aSize) const
sl@0: 	{
sl@0: 	TPckgBuf<TSize> sizePkg;
sl@0: 	WriteReplyP(&sizePkg,EWsSdOpXTestScreenCaptureSize);
sl@0: 	aSize = sizePkg();
sl@0: 	return KErrNone;
sl@0: 	}
sl@0: 
sl@0: TInt CWsScreenDevice::CScrDevExtension::ComposeScreen(const CFbsBitmap& aBitmap) const
sl@0: 	{
sl@0: 	TInt bitmapHandle = aBitmap.Handle();
sl@0: 	AddToBitmapArray(bitmapHandle);
sl@0: 	TWsScsComposeScreenCommand composeScreenCmd(EWsScsScreenCompose, bitmapHandle);
sl@0: 	return(WriteReply(&composeScreenCmd,sizeof(composeScreenCmd), EWsSdOpXTestScreenCapture));
sl@0: 	}