diff -r 8e5f6eea9c9f -r 5b3385a43d68 photosgallery/slideshow/engine/coresrc/shwsettingsmodel.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/photosgallery/slideshow/engine/coresrc/shwsettingsmodel.cpp	Wed Sep 01 12:33:26 2010 +0100
@@ -0,0 +1,442 @@
+/*
+* Copyright (c) 2007-2008 Nokia Corporation and/or its subsidiary(-ies). 
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:    The settings model for the slideshow
+ *
+*/
+
+
+
+  
+
+//  CLASS HEADER
+#include "shwsettingsmodel.h"
+
+//  EXTERNAL INCLUDES
+#include <centralrepository.h>
+
+//  INTERNAL INCLUDES
+#include <glxlog.h>
+#include <glxtracer.h>
+#include "shwconstants.hrh"
+#include "shwconstants.h"					
+
+// LOCAL CONSTANTS NAMESPACE
+namespace
+	{
+	// CenRep Key Ids
+    const TUint32 KShwMusicOnOffKey 	= 0x00000001;
+    const TUint32 KShwMusicNamePathKey 	= 0x00000002;
+    const TUint32 KShwTransitionDelayKey= 0x00000003;
+    const TUint32 KShwTransitionTypeKey	= 0x00000004;
+    const TUint32 KShwTransitionIndexKey= 0x00000005;
+    const TUint32 KShwPlayOrder			= 0x00000006;
+	}
+
+/**
+ *  CShwCenRepWatcher
+ *  CShwSettingsModel containted class for observing changes in central 
+ *					 repository values
+ * @internal reviewed 08/06/2007 by Kimmo Hoikka
+ */
+NONSHARABLE_CLASS( CShwSettingsModel::CShwCenRepWatcher )
+	: public CActive
+	{
+	public:  // Constructors and destructor
+
+	    /**
+	     * Symbian Constructor.
+	     * @param aRepositoryUid uid of Central Repository file
+	     * @param aId id of the Central Repository key
+	     * @param aObserver obersver - only supplied when the owner is 
+	     *  interested in changes in key value
+	     * @return contructed object
+	     */
+	    static CShwCenRepWatcher* NewL(const TUid& aRepositoryUid,
+	                     		       TUint32 aId );
+        /**
+         * Destructor.
+         */
+        ~CShwCenRepWatcher();
+	    
+	public: // API
+
+        /**
+         * Get current value as integer.
+         * @return Current value of the key as a TInt
+         */
+        TInt KeyValueL() const;
+
+        /**
+         * Get current value as 16 bit descriptor.
+         * @param return value of the key in the descriptor
+         */
+        void KeyValueL(TDes& aKeyValue) const;
+
+        /**
+         * Set integer value
+         * @param aNewValue New value for the key
+         */
+        void SetKeyValueL(const TInt aNewValue);
+
+        /**
+         * Set string value
+         * @param aNewValue New 16 bit descriptor value for the key
+         */
+        void SetKeyValueL(const TDesC& aNewValue);
+
+	private: // Implementation
+
+        /**
+         * C++ constructor.
+         * @param aRepositoryUid uid of CenRep file
+         * @param aId id of the key
+         * @param aObserver obersver
+         * @return contructed object
+         */
+        CShwCenRepWatcher(const TUid& aRepositoryUid, TUint32 aId );
+
+        /**
+         * 2nd phase constructor
+         */
+        void ConstructL();
+
+	protected: // from CActive
+
+        /**
+         * @ref CActive::RunL
+         */
+        void RunL();
+
+        /**
+         * @ref CActive::DoCancel
+         */
+        void DoCancel();
+
+	private: // Implementation
+
+        // Own: the central repository API
+        CRepository* iRepository;       
+        // the central repository identifier
+        TUid iRepositoryUid;
+        // the key id
+        TUint32 iId;
+	    
+	}; 
+
+// -----------------------------------------------------------------------------
+// Two-phased constructor.
+// -----------------------------------------------------------------------------
+CShwSettingsModel::CShwCenRepWatcher* CShwSettingsModel::CShwCenRepWatcher::NewL
+										(const TUid& aRepositoryUid,
+                                        TUint32 aId )
+    {
+    TRACER("CShwSettingsModel::CShwCenRepWatcher::NewL");
+	GLX_LOG_INFO("CShwSettingsModel::CShwCenRepWatcher::NewL");
+			    
+    CShwCenRepWatcher* self = 
+    	new(ELeave) CShwCenRepWatcher( aRepositoryUid, aId );
+    CleanupStack::PushL( self );
+    self->ConstructL();
+    CleanupStack::Pop( self );
+    return self;
+    }
+
+inline CShwSettingsModel::CShwCenRepWatcher::CShwCenRepWatcher(
+		const TUid& aRepositoryUid, TUint32 aId )
+    : CActive(EPriorityStandard), 
+    iRepositoryUid(aRepositoryUid), 
+    iId(aId)
+    {
+    }
+
+// ----------------------------------------------------------------------------
+// Symbian 2nd phase constructor 
+// ----------------------------------------------------------------------------
+void CShwSettingsModel::CShwCenRepWatcher::ConstructL()
+    {
+    TRACER("CShwSettingsModel::CShwCenRepWatcher::ConstructL");
+    GLX_LOG_INFO("CShwSettingsModel::CShwCenRepWatcher::ConstructL");
+    iRepository = CRepository::NewL(iRepositoryUid);
+    }
+
+// ----------------------------------------------------------------------------
+// Destructor
+// ----------------------------------------------------------------------------
+CShwSettingsModel::CShwCenRepWatcher::~CShwCenRepWatcher()
+    {
+    TRACER("CShwSettingsModel::CShwCenRepWatcher::~CShwCenRepWatcher");
+	GLX_LOG_INFO("CShwSettingsModel::CShwCenRepWatcher::~CShwCenRepWatcher");
+    Cancel();
+    delete iRepository;
+    }
+
+// ----------------------------------------------------------------------------
+// CShwCenRepWatcher::KeyValueL
+// ----------------------------------------------------------------------------
+TInt CShwSettingsModel::CShwCenRepWatcher::KeyValueL() const
+    {
+    TRACER("CShwSettingsModel::CShwCenRepWatcher::KeyValueL() const");
+	GLX_LOG_INFO("CShwSettingsModel::CShwCenRepWatcher::KeyValueL() const");
+    TInt retVal = KErrNone;
+    User::LeaveIfError( iRepository->Get(iId, retVal) );
+    return retVal;
+    }
+    
+// ----------------------------------------------------------------------------
+// CShwCenRepWatcher::KeyValueL
+// ----------------------------------------------------------------------------
+void CShwSettingsModel::CShwCenRepWatcher::KeyValueL(TDes& aKeyValue) const
+    {
+    TRACER("CShwSettingsModel::CShwCenRepWatcher::KeyValueL");
+	GLX_LOG_INFO("CShwSettingsModel::CShwCenRepWatcher::KeyValueL");
+    User::LeaveIfError( iRepository->Get(iId, aKeyValue) );
+    }
+
+// ----------------------------------------------------------------------------
+// CShwCenRepWatcher::SetKeyValueL
+// ----------------------------------------------------------------------------
+void CShwSettingsModel::CShwCenRepWatcher::SetKeyValueL(const TInt aNewValue)
+    {
+    TRACER("CShwSettingsModel::CShwCenRepWatcher::SetKeyValueL(const TInt aNewValue)");
+    GLX_LOG_INFO("CShwSettingsModel::CShwCenRepWatcher::SetKeyValueL(const TInt aNewValue)");
+    User::LeaveIfError( iRepository->Set(iId, aNewValue) );
+    }    
+
+// ----------------------------------------------------------------------------
+// CShwCenRepWatcher::SetKeyValueL
+// ----------------------------------------------------------------------------
+ void CShwSettingsModel::CShwCenRepWatcher::SetKeyValueL(const TDesC& aNewValue)
+    {
+    TRACER("CShwSettingsModel::CShwCenRepWatcher::SetKeyValueL");
+    GLX_LOG_INFO("CShwSettingsModel::CShwCenRepWatcher::SetKeyValueL");
+    User::LeaveIfError( iRepository->Set(iId, aNewValue) );
+    }
+
+// ----------------------------------------------------------------------------
+// CShwCenRepWatcher::RunL
+// ----------------------------------------------------------------------------
+void CShwSettingsModel::CShwCenRepWatcher::RunL()
+    {
+    TRACER("CShwSettingsModel::CShwCenRepWatcher::SetKeyValueL");
+    GLX_LOG_INFO("CShwSettingsModel::CShwCenRepWatcher::RunL");    
+    User::LeaveIfError(iRepository->NotifyRequest(iId, iStatus));
+    SetActive();
+    }
+
+// ----------------------------------------------------------------------------
+// CShwCenRepWatcher::DoCancel
+// ----------------------------------------------------------------------------
+void CShwSettingsModel::CShwCenRepWatcher::DoCancel()
+    {
+    TRACER("CShwSettingsModel::CShwCenRepWatcher::DoCancel");
+    GLX_LOG_INFO("CShwSettingsModel::CShwCenRepWatcher::DoCancel");
+    iRepository->NotifyCancel( iId );
+    }
+
+// ----------------------------------------------------------------------------
+// Symbian 2 phase constructor 
+// ----------------------------------------------------------------------------
+EXPORT_C CShwSettingsModel* CShwSettingsModel::NewL()
+	{
+	TRACER("CShwSettingsModel::NewL");
+	GLX_LOG_INFO("CShwSettingsModel::NewL");
+
+    CShwSettingsModel* self = new(ELeave) CShwSettingsModel();
+    CleanupStack::PushL(self);
+    self->ConstructL();
+    CleanupStack::Pop( self );
+    return self;
+	}
+
+// ----------------------------------------------------------------------------
+// Destructor
+// ----------------------------------------------------------------------------
+EXPORT_C CShwSettingsModel::~CShwSettingsModel()
+	{
+	TRACER("CShwSettingsModel::~CShwSettingsModel");
+	GLX_LOG_INFO("CShwSettingsModel::~CShwSettingsModel");
+	delete iPlayOrder;
+	delete iMusicOnOffWatcher;
+	delete iMusicNamePathWatcher;
+	delete iTransDelayWatcher;
+	delete iTransTypeWatcher;
+	delete iTransIndexWatcher;
+	}
+   
+// ----------------------------------------------------------------------------
+// C++ default constructor 
+// ----------------------------------------------------------------------------
+inline CShwSettingsModel::CShwSettingsModel()
+	{
+	}
+
+// ----------------------------------------------------------------------------
+// Two-phased constructor.
+// ----------------------------------------------------------------------------
+void CShwSettingsModel::ConstructL()
+	{
+	TRACER("CShwSettingsModel::ConstructL");
+	GLX_LOG_INFO("CShwSettingsModel::ConstructL");
+	const TInt KEngineId = 0x200071D3;	
+	const TUid KEngineUid = TUid::Uid( KEngineId );
+	iPlayOrder			 = CShwCenRepWatcher::NewL(KEngineUid,
+							KShwPlayOrder );
+	iMusicOnOffWatcher    = CShwCenRepWatcher::NewL(KEngineUid, 
+							KShwMusicOnOffKey );
+	iMusicNamePathWatcher = CShwCenRepWatcher::NewL(KEngineUid, 
+							KShwMusicNamePathKey );
+	iTransDelayWatcher    = CShwCenRepWatcher::NewL(KEngineUid, 
+							KShwTransitionDelayKey );
+	iTransTypeWatcher     = CShwCenRepWatcher::NewL(KEngineUid, 
+							KShwTransitionTypeKey );
+	iTransIndexWatcher    = CShwCenRepWatcher::NewL(KEngineUid, 
+							KShwTransitionIndexKey );
+	}
+	
+// ----------------------------------------------------------------------------
+// CShwSettingsModel::PlayOrderL
+// returns persisted play order
+// ----------------------------------------------------------------------------
+//
+EXPORT_C TInt CShwSettingsModel::PlayOrderL()
+	{
+	TRACER("CShwSettingsModel::PlayOrderL");
+    GLX_LOG_INFO("CShwSettingsModel::PlayOrderL");
+    TInt playState = iPlayOrder->KeyValueL();
+    ASSERT(playState == 0 || playState == 1);
+    return playState;
+	}
+
+// ----------------------------------------------------------------------------
+// CShwSettingsModel::SavePlayOrderL
+// Persist the play order state
+// ----------------------------------------------------------------------------
+//
+EXPORT_C void CShwSettingsModel::SavePlayOrderL(TInt aPlayOrder)
+	{
+	TRACER("CShwSettingsModel::SavePlayOrderL");
+	GLX_LOG_INFO("CShwSettingsModel::SaveMusicStateL");
+   
+    ASSERT(aPlayOrder == 0 || aPlayOrder == 1);
+    iPlayOrder->SetKeyValueL(aPlayOrder);
+	}
+	
+// ----------------------------------------------------------------------------
+// CShwSettingsModel::SaveMusicOnOff
+// Persist the music on/off state
+// ----------------------------------------------------------------------------
+EXPORT_C void CShwSettingsModel::SaveMusicStateL(TInt aMusicState)
+    {
+    TRACER("CShwSettingsModel::SaveMusicStateL");
+	GLX_LOG_INFO("CShwSettingsModel::SaveMusicStateL");
+   
+    ASSERT(aMusicState == 0 || aMusicState == 1);
+    iMusicOnOffWatcher->SetKeyValueL(aMusicState);
+    }
+
+// ----------------------------------------------------------------------------
+// CShwSettingsModel::MusicOnL
+// returns persisted the music on/off state
+// ----------------------------------------------------------------------------
+EXPORT_C TInt CShwSettingsModel::MusicOnL() const
+    {
+    TRACER("CShwSettingsModel::MusicOnL");
+    GLX_LOG_INFO("CShwSettingsModel::MusicOnL");
+    TInt musicState = iMusicOnOffWatcher->KeyValueL();
+    ASSERT(musicState == 0 || musicState == 1);
+    return musicState;
+    }
+
+// ----------------------------------------------------------------------------
+// CShwSettingsModel::SaveMusicNamePathL
+// Persist the name & path to the music file
+// ----------------------------------------------------------------------------
+EXPORT_C void CShwSettingsModel::SaveMusicNamePathL(const TDesC& aMusicNamePath)
+    {
+    TRACER("CShwSettingsModel::SaveMusicNamePathL");
+    GLX_LOG_INFO("CShwSettingsModel::SaveMusicNamePathL");
+    // allow setting also empty value (there used to be an if here...)
+    iMusicNamePathWatcher->SetKeyValueL( aMusicNamePath );
+    }
+	
+// ----------------------------------------------------------------------------
+// CShwSettingsModel::MusicNamePathL
+// returns persisted value of the music file name and path
+// ----------------------------------------------------------------------------
+EXPORT_C void CShwSettingsModel::MusicNamePathL(TDes& aMusicNamePath) const
+    {
+    TRACER("CShwSettingsModel::MusicNamePathL");
+    GLX_LOG_INFO("CShwSettingsModel::MusicNamePathL");
+    iMusicNamePathWatcher->KeyValueL(aMusicNamePath);
+    }
+
+// ----------------------------------------------------------------------------
+// CShwSettingsModel::SaveTransDelayL
+// Persist the value for transition delay between slide
+// ----------------------------------------------------------------------------
+EXPORT_C void CShwSettingsModel::SaveTransDelayL( TInt aTransDelay )
+    {
+    TRACER("CShwSettingsModel::SaveTransDelayL");
+    GLX_LOG_INFO1("CShwSettingsModel::SaveTransDelayL %d", aTransDelay );
+    // check we are inside bounds
+    aTransDelay = Max( aTransDelay, KMinTransDelay );
+    aTransDelay = Min( aTransDelay, KMaxTransDelay );
+    iTransDelayWatcher->SetKeyValueL(aTransDelay);
+    }
+
+// ----------------------------------------------------------------------------
+// CShwSettingsModel::TransDelayL
+// returns persisted transition delay value
+// ----------------------------------------------------------------------------
+EXPORT_C TInt CShwSettingsModel::TransDelayL() const
+    {
+    TRACER("CShwSettingsModel::TransDelayL");
+    TInt transDelay = iTransDelayWatcher->KeyValueL();
+    GLX_LOG_INFO1( "CShwSettingsModel::TransDelayL %d", transDelay );
+    return transDelay;
+    }
+
+// ----------------------------------------------------------------------------
+// CShwSettingsModel::SaveTransitionType
+// Persist the transition effect type ECOM UID and index
+// ----------------------------------------------------------------------------
+EXPORT_C void CShwSettingsModel::SaveTransitionTypeL(const TUid aEffectUid,
+										   const TUint aEffectIndex)
+    {
+    TRACER("CShwSettingsModel::SaveTransitionTypeL");
+    GLX_LOG_INFO("CShwSettingsModel::SaveTransitionTypeL");
+	iTransTypeWatcher->SetKeyValueL(aEffectUid.iUid);
+	iTransIndexWatcher->SetKeyValueL(aEffectIndex);
+    }
+
+
+// ----------------------------------------------------------------------------
+// CShwSettingsModel::TransitionTypeL
+// returns persisted transition effect type ECOM UID and 
+// index
+// ----------------------------------------------------------------------------
+EXPORT_C void CShwSettingsModel::TransitionTypeL(TUid& aEffectUid, 	
+													TUint& aEffectIndex) const
+    {
+    TRACER("CShwSettingsModel::TransitionTypeL");
+    GLX_LOG_INFO("CShwSettingsModel::TransitionTypeL");
+	aEffectUid.iUid = iTransTypeWatcher->KeyValueL();
+	aEffectIndex 	= iTransIndexWatcher->KeyValueL();
+    }
+    
+// End of File
+
+
+
+