--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/engine/inc/SoundEngine.h	Thu Feb 25 14:29:19 2010 +0000
@@ -0,0 +1,88 @@
+/*
+* Copyright (c) 2007-2010 Sebastian Brannstrom, Lars Persson, EmbedDev AB
+*
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of the License "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:
+* EmbedDev AB - initial contribution.
+*
+* Contributors:
+*
+* Description:
+*
+*/
+
+#ifndef SOUND_ENGINE_H
+#define SOUND_ENGINE_H
+#include <e32base.h>
+
+class CPodcastModel;
+
+const TInt KVolumeSteps = 10;
+
+enum TSoundEngineState
+{
+	ESoundEngineNotInitialized,
+	ESoundEngineOpening,
+	ESoundEnginePlaying,
+	ESoundEnginePaused,
+	ESoundEngineStopped
+};
+
+class MSoundEngineObserver
+{
+public:
+	virtual void PlaybackInitializedL() = 0;
+	virtual void PlaybackStartedL() = 0;
+	virtual void PlaybackStoppedL() = 0;
+	virtual void VolumeChanged(TUint aVolume, TUint aMaxVolume) = 0;
+};
+
+
+/**
+ * This class handles all playback and audio associated resources that the application/client needs
+ */
+class CSoundEngine : public CBase
+{
+public:
+	static CSoundEngine* NewL(CPodcastModel& aPodcastModel);
+	~CSoundEngine();
+	void OpenFileL(const TDesC& aFileName, TBool aPlayOnInit);
+	IMPORT_C void Play();
+	IMPORT_C void Stop(TBool aMarkPlayed=ETrue);
+	IMPORT_C TTimeIntervalMicroSeconds Position();
+	IMPORT_C void SetPosition(TUint aPos);
+	
+	IMPORT_C void Pause(TBool aOverrideState = EFalse);
+
+	IMPORT_C TSoundEngineState State();
+	IMPORT_C void AddObserver(MSoundEngineObserver* aObserver);
+	void RemoveObserver(MSoundEngineObserver* aObserver);
+			
+	const TFileName& LastFileName();
+	
+private:
+	void NotifyPlaybackStarted();
+	void NotifyPlaybackStopped();
+	void NotifyPlaybackInitialized();
+	void NotifyVolumeChanged();
+	
+protected:
+	CSoundEngine(CPodcastModel& aPodcastModel);
+	void ConstructL();	
+	
+private:    
+	CPodcastModel& iPodcastModel;
+	TSoundEngineState iState;
+	RArray<MSoundEngineObserver*> iObservers;
+	TFileName	iLastOpenedFileName;
+	TBool iPlayOnInit;
+	TTimeIntervalMicroSeconds iMaxPos;
+};
+
+#endif // SOUND_ENGINE_H
+