--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/javauis/mmapi_qt/baseline/src/cmmamiditempocontrol.cpp	Fri May 14 15:47:24 2010 +0300
@@ -0,0 +1,213 @@
+/*
+* Copyright (c) 2002 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 TempoControl.
+*
+*/
+
+
+//  INCLUDE FILES
+#include <logger.h>
+#include <e32base.h>
+
+#include "cmmamiditempocontrol.h"
+#include "cmmamidiplayer.h"
+
+static const TInt KMicroBeatsInMiliBeat = 1000;
+static const TInt KMMAMIDIMinimumTempo = 10000;
+static const TInt KMMAMIDIMaximumTempo = 300000;
+static const TInt KMMAMIDIDefaultTempoInMicroBeats = 120000000;
+_LIT(KMMAMidiTempoStateChangedError, "Tempo error in state change");
+
+CMMAMIDITempoControl* CMMAMIDITempoControl::NewL(CMMAMIDIPlayer* aPlayer)
+{
+    CMMAMIDITempoControl* self = new(ELeave) CMMAMIDITempoControl(aPlayer);
+    CleanupStack::PushL(self);
+    self->ConstructL();
+    CleanupStack::Pop();
+    return self;
+}
+
+CMMAMIDITempoControl::CMMAMIDITempoControl(CMMAMIDIPlayer* aPlayer)
+{
+    iPlayer = aPlayer;
+    iTempo = KMMAMIDIDefaultTempoInMicroBeats;
+
+    LOG( EJavaMMAPI, EInfo, "MMA:CMMAMIDITempoControl::CMMAMIDITempoControl");
+}
+
+CMMAMIDITempoControl::~CMMAMIDITempoControl()
+{
+    LOG( EJavaMMAPI, EInfo, "MMA:CMMAMIDITempoControl::~CMMAMIDITempoControl");
+}
+
+inline void CMMAMIDITempoControl::ConstructL()
+{
+    LOG( EJavaMMAPI, EInfo, "MMA:CMMAMIDITempoControl::ConstructL");
+
+    iPlayer->addObserverL(this);
+    iPlayer->AddStateListenerL(this);
+}
+
+const TDesC& CMMAMIDITempoControl::ClassName() const
+{
+    LOG( EJavaMMAPI, EInfo, "MMA:CMMAMIDITempoControl::ClassName");
+    return KMIDITempoControlName;
+}
+
+
+TInt CMMAMIDITempoControl::TempoL()
+{
+    LOG( EJavaMMAPI, EInfo, "MMA: CMMAMIDITempoControl: TempoL");
+
+    return iTempo / KMicroBeatsInMiliBeat;
+}
+
+TInt CMMAMIDITempoControl::SetTempoL(TInt aTempo)
+{
+    LOG( EJavaMMAPI, EInfo, "MMA: CMMAMIDITempoControl: SetTempoL");
+    TInt tempo = aTempo;
+    if (tempo < KMMAMIDIMinimumTempo)
+    {
+        tempo = KMMAMIDIMinimumTempo;
+    }
+    if (tempo > KMMAMIDIMaximumTempo)
+    {
+        tempo = KMMAMIDIMaximumTempo;
+    }
+
+    LOG1( EJavaMMAPI, EInfo, "MMA: CMMAMIDITempoControl: SetTempoL: setting tempo %d",
+              tempo);
+
+    // Convert tempo to micro-beats.
+    tempo *= KMicroBeatsInMiliBeat;
+
+    // Set the tempo to the midi client if the player state is not REALIZED.
+    // (Tempo cannot be set to the midi client if the player
+    // has not been prefetched).
+    if (iPlayer->State() != CMMAPlayer::ERealized)
+    {
+        CMidiClientUtility* midi = iPlayer->MidiClient();
+        midi->SetTempoL(tempo);
+        tempo = iPlayer->MidiClient()->TempoMicroBeatsPerMinuteL();
+    }
+
+    iTempo = tempo;
+
+    LOG1( EJavaMMAPI, EInfo, "MMA: CMMAMIDITempoControl: SetTempoL: Tempo set: %d",
+              tempo / KMicroBeatsInMiliBeat);
+
+    return tempo / KMicroBeatsInMiliBeat;
+}
+
+TInt CMMAMIDITempoControl::SetRateL(TInt aRate)
+{
+    TInt rate = aRate;
+    TInt maxRate = MaxRateL();
+    TInt minRate = MinRateL();
+
+    if (rate > maxRate)
+    {
+        rate = maxRate;
+    }
+    else if (rate < minRate)
+    {
+        rate = minRate;
+    }
+    iPlayer->MidiClient()->SetPlaybackRateL(rate);
+    return RateL();         // return the actual tempo
+}
+
+TInt CMMAMIDITempoControl::RateL()
+{
+    return iPlayer->MidiClient()->PlaybackRateL();
+}
+
+TInt CMMAMIDITempoControl::MaxRateL()
+{
+    return iPlayer->MidiClient()->MaxPlaybackRateL();
+}
+
+TInt CMMAMIDITempoControl::MinRateL()
+{
+    return iPlayer->MidiClient()->MinPlaybackRateL();
+}
+
+void CMMAMIDITempoControl::StateChanged(TInt aState)
+{
+    LOG1( EJavaMMAPI, EInfo, "CMMAMIDITempoControl:: StateChanged, state = %d", aState);
+
+    // If tempo was set when the player was in REALIZED state, set the tempo
+    // now when the player has been prefetched.
+    if ((aState == CMMAPlayer::EPrefetched) &&
+            (iTempo != KMMAMIDIDefaultTempoInMicroBeats))
+    {
+        CMidiClientUtility* midi = iPlayer->MidiClient();
+        TRAPD(err, midi->SetTempoL(iTempo));
+
+        ELOG1( EJavaMMAPI, "CMMAMIDITempoControl:: StateChanged, err = %d", err);
+
+        if (err != KErrNone)
+        {
+            iPlayer->PostStringEvent(CMMAPlayerEvent::EError,
+                                     KMMAMidiTempoStateChangedError);
+        }
+    }
+    else if (aState == CMMAPlayer::ERealized)
+    {
+        // If the player was deallocated, set the tempo to the default value.
+        iTempo = KMMAMIDIDefaultTempoInMicroBeats;
+    }
+}
+void CMMAMIDITempoControl::MmcuoStateChanged(TMidiState /*aOldState*/,
+        TMidiState /*aNewState*/,
+        const TTimeIntervalMicroSeconds& /*aTime*/,
+        TInt /*aError*/)
+{
+}
+
+void CMMAMIDITempoControl::MmcuoTempoChanged(TInt aMicroBeatsPerMinute)
+{
+    LOG( EJavaMMAPI, EInfo, "CMMAMIDITempoControl:: MmcuoTempoChanged");
+
+    iTempo = aMicroBeatsPerMinute;
+}
+
+void CMMAMIDITempoControl::MmcuoVolumeChanged(TInt /*aChannel*/,TReal32 /*aVolumeInDecibels*/)
+{
+}
+
+void CMMAMIDITempoControl::MmcuoMuteChanged(TInt /*aChannel*/,TBool /*aMuted*/)
+{
+}
+
+void CMMAMIDITempoControl::MmcuoSyncUpdate(const TTimeIntervalMicroSeconds& /*aMicroSeconds*/,TInt64 /*aMicroBeats*/)
+{
+}
+
+void CMMAMIDITempoControl::MmcuoMetaDataEntryFound(const TInt /*aMetaDataEntryId*/,const TTimeIntervalMicroSeconds& /*aPosition*/)
+{
+}
+
+void CMMAMIDITempoControl::MmcuoMipMessageReceived(const RArray<TMipMessageEntry>& /*aMessage*/)
+{
+}
+
+void CMMAMIDITempoControl::MmcuoPolyphonyChanged(TInt /*aNewPolyphony*/)
+{
+}
+
+void CMMAMIDITempoControl::MmcuoInstrumentChanged(TInt /*aChannel*/,TInt /*aBankId*/,TInt /*aInstrumentId*/)
+{
+}
+//  END OF FILE