diff -r 2a9601315dfc -r 98ccebc37403 javauis/mmapi_qt/baseline/inc/cmmamidicontrol.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/javauis/mmapi_qt/baseline/inc/cmmamidicontrol.h Fri May 14 15:47:24 2010 +0300 @@ -0,0 +1,203 @@ +/* +* Copyright (c) 2002-2007 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: This class is a MIDIControl. +* +*/ + + +#ifndef CMMAMIDICONTROL_H +#define CMMAMIDICONTROL_H + +// EXTERNAL INCLUDES + +// INTERNAL INCLUDES +#include "cmmacontrol.h" // base class +#include "mmmaplayerstatelistener.h" +#include // MMidiClientUtilityObserver +#include + +// CONSTANTS + +// Constant for control name. Name is used in Java side to instantiate +// Java Class which uses CMMAMIDIControl. +_LIT(KMIDIControlName, "MIDIControl"); + +class CMMAMIDIPlayer; + +// Maximum volume defined in the Java API. +// It is used to convert volume values between native and java values. +static const TInt KMAXVolume = 127; + + + +// CLASS DECLARATION +/** +* This class implements MIDIControl interface. +* +* +*/ +NONSHARABLE_CLASS(CMMAMIDIControl): public CMMAControl, + public MMidiClientUtilityObserver +{ +private: + + class CChannelVolumeEventWait : public CBase, + public MTimeOutNotify + { + public: // Constructor and destructor + + static CChannelVolumeEventWait* NewL(); + + ~CChannelVolumeEventWait(); + + public: // Methods from base classes + + /** + * From MTimeOutNotify Timer expiration call back method + */ + void TimerExpired(); + + public: // New methods + + void StartWait(TInt aChannel); + + void StopWait(); + + void HandleVolumeChangedEvent(TInt aChannel); + + private: // Constructor + + CChannelVolumeEventWait(); + + void ConstructL(); + + private: // Data + + // Own. For waiting the correct volume changed event + CActiveSchedulerWait* iWait; + + // Own. Time-out for waiting volume changed event + CTimeOutTimer* iTimer; + + // Expected channel for volume event + TInt iChannel; + + }; + +public: + /** + * Creates new CMMAMIDIControl. + * + * @param aPlayer Player that plays the MIDI. + */ + static CMMAMIDIControl* NewL(CMMAMIDIPlayer* aPlayer); + + /** + * Destructor. + */ + ~CMMAMIDIControl(); +protected: + /** + * Constructor. + * @param aPlayer Player that plays the MIDI. + */ + CMMAMIDIControl(CMMAMIDIPlayer* aPlayer); + + /** + * Initializes this control. + */ + void ConstructL(); + +public: // From CMMAControl + const TDesC& ClassName() const; + +public: // From MMMAPlayerStateListener + void StateChanged(TInt aState); + +public: // Static new methods + + /** + * Get volume for the given channel. The return value is + * independent of the player's volume. + * + * @param aChannel 0-15 + */ + TInt ChannelVolumeL(TInt aChannel); + + /** + * Set volume for given channel. + * + * @param aChannel 0-15 + * @param aVolume 0-127 + */ + void SetChannelVolumeL(TInt aChannel, TInt aVolume); + + /** + * Set program of a channel. + * + * @param aChannel 0-15 + * @param aBank 0-16383, or -1 for default bank + * @param aProgram 0-127 + */ + void SetProgramL(TInt aChannel, + TInt aBank, + TInt aProgram); + + /** + * Sends a long MIDI event to the device. + * This method passes the data directly to the receiving device. + * The data array's contents are not checked for validity. + * + * @param aData array of the bytes to send + * @return the number of bytes actually sent to the device + */ + TInt SendMIDIEventL(const TDesC8* aData); + + /** + * Reinitializes native midi engine with new sequence data. + * First closes midi engine and then opens it again with new + * data. The data array's contents are not checked for validity. + * + * @param aData midi sequence data for initialization + * @return KErrNone (return value is present only for + * method footprint) + */ + TInt ReInitializeMidiL(const TDesC8* aData); + +public: // from MMidiClientUtilityObserver + void MmcuoStateChanged(TMidiState aOldState,TMidiState aNewState,const TTimeIntervalMicroSeconds& aTime,TInt aError); + void MmcuoTempoChanged(TInt aMicroBeatsPerMinute); + void MmcuoVolumeChanged(TInt aChannel,TReal32 aVolumeInDecibels); + void MmcuoMuteChanged(TInt aChannel,TBool aMuted); + void MmcuoSyncUpdate(const TTimeIntervalMicroSeconds& aMicroSeconds,TInt64 aMicroBeats); + void MmcuoMetaDataEntryFound(const TInt aMetaDataEntryId,const TTimeIntervalMicroSeconds& aPosition); + void MmcuoMipMessageReceived(const RArray& aMessage); + void MmcuoPolyphonyChanged(TInt aNewPolyphony); + void MmcuoInstrumentChanged(TInt aChannel,TInt aBankId,TInt aInstrumentId); + +private: // Data + /** + * Used to control MIDI events. + */ + CMMAMIDIPlayer* iPlayer; + + /** + * Own. Utility for waiting for channel volume events + */ + CChannelVolumeEventWait* iVolumeEventWait; + +}; + + +#endif // CMMAMIDICONTROL_H