--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/vtuis/videotelui/src/VtUiUtility.cpp	Mon Nov 23 14:47:47 2009 +0200
@@ -0,0 +1,336 @@
+/*
+* Copyright (c) 2004 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:  Implementation of the VtUiUtility class.
+*
+*/
+
+
+
+// INCLUDE FILES
+#include    "VtUiUtility.h"
+#include    "VtUiPanic.h"
+#include    <featmgr.h>
+#include    <mvtengmedia.h>
+#include    <cvtlogger.h>
+#include    <aknutils.h>
+#include 	"tVtuifeaturevariation.h"
+
+// Characters to open number entry.
+_LIT( KVtUiDTMFCharacters, "0123456789*#" );
+
+// ============================ MEMBER FUNCTIONS ===============================
+
+// -----------------------------------------------------------------------------
+// VtUiUtility::GetAudioRoutingAvailability
+// -----------------------------------------------------------------------------
+//
+void VtUiUtility::GetAudioRoutingAvailability(
+        MVtEngAudio& aAudio,
+        TInt& aAvailable )
+    {
+    aAvailable = 0;
+    TVtUiBTVariation btvariation;
+    const TBool bluetoothAudioSupported =
+        btvariation.IsBTSupported();
+
+    MVtEngAudio::TAudioRoutingState routingState;
+    if ( aAudio.GetRoutingState( routingState ) == KErrNone )
+        {
+        // Deactivate BT handsfree.
+        if ( bluetoothAudioSupported &&
+             IsAudioRoutingAvailable(
+                aAudio,
+                routingState,
+                MVtEngAudio::EAudioBT,
+                MVtEngAudio::EAudioHandset ) )
+            {
+            aAvailable |= EDeactivateBtHandsfree;
+            }
+
+        // Activate BT handsfree.
+        if ( bluetoothAudioSupported &&
+             ( IsAudioRoutingAvailable(
+                 aAudio,
+                 routingState,
+                 MVtEngAudio::EAudioHandset,
+                 MVtEngAudio::EAudioBT ) ||
+               IsAudioRoutingAvailable(
+                aAudio,
+                routingState,
+                MVtEngAudio::EAudioLoudspeaker,
+                MVtEngAudio::EAudioBT ) ) )
+            {
+            aAvailable |= EActivateBtHandsfree;
+            }
+
+        // Deactivate loudspeaker
+        if ( IsAudioRoutingAvailable(
+                aAudio,
+                routingState,
+                MVtEngAudio::EAudioLoudspeaker,
+                MVtEngAudio::EAudioHandset ) )
+            {
+            aAvailable |= EDeactivateLoudspeaker;
+            }
+
+        // Activate loudspeaker
+        if ( IsAudioRoutingAvailable(
+                aAudio,
+                routingState,
+                MVtEngAudio::EAudioHandset,
+                MVtEngAudio::EAudioLoudspeaker ) ||
+             ( bluetoothAudioSupported && 
+               IsAudioRoutingAvailable( 
+                   aAudio,
+                   routingState, 
+                   MVtEngAudio::EAudioBT, 
+                   MVtEngAudio::EAudioLoudspeaker ) ) )
+            {
+            aAvailable |= EActivateLoudspeaker;
+            }
+        }
+    }
+
+// -----------------------------------------------------------------------------
+// VtUiUtility::GetOutgoingMediaState
+// -----------------------------------------------------------------------------
+//
+void VtUiUtility::GetOutgoingMediaState(
+        MVtEngMedia& aMedia,
+        TInt& aAvailable )
+    {
+    TInt outgoingMediaState;
+    const TInt err =
+        aMedia.GetMediaState(
+            MVtEngMedia::EMediaOutgoing,
+            outgoingMediaState );
+    if ( err == KErrNone )
+        {
+        // If source is still image, then video sending is off.
+        MVtEngMedia::TMediaSource source;
+        if ( aMedia.GetSource( source ) == KErrNone )
+            {
+            if ( source == MVtEngMedia::EMediaStillImage )
+                {
+                outgoingMediaState &= ~MVtEngMedia::EMediaVideo;
+                }
+            }
+        TBool freezeSupported;
+        if( aMedia.GetFreezeSupported( freezeSupported ) == KErrNone )
+            {
+            TBool isFrozen;
+            if( freezeSupported && aMedia.GetFreezeState( isFrozen ) == KErrNone )
+                {
+                if( isFrozen )
+                    {
+                    outgoingMediaState &= ~MVtEngMedia::EMediaVideo;
+                    }
+                }
+            }
+        }
+    else
+        {
+        outgoingMediaState =
+            ( MVtEngMedia::EMediaAudio | MVtEngMedia::EMediaVideo );
+        }
+    aAvailable = outgoingMediaState;
+    }
+
+// -----------------------------------------------------------------------------
+// VtUiUtility::GetIncomingMediaState
+// -----------------------------------------------------------------------------
+//
+void VtUiUtility::GetIncomingMediaState(
+        MVtEngMedia& aMedia,
+        TInt& aAvailable )
+    {
+    TInt mediaState;
+    const TInt err =
+        aMedia.GetMediaState(
+            MVtEngMedia::EMediaIncoming,
+            mediaState );
+    if ( err != KErrNone )
+        {
+        mediaState =
+            ( MVtEngMedia::EMediaAudio | MVtEngMedia::EMediaVideo );
+        }
+
+    aAvailable = mediaState;
+    }
+
+// -----------------------------------------------------------------------------
+// VtUiUtility::HasStillImage
+// -----------------------------------------------------------------------------
+//
+TBool VtUiUtility::HasStillImage(
+        MVtEngMedia& aMedia )
+    {
+    TInt caps;
+    const TInt capsErr = aMedia.GetSourcesCaps( caps );
+    return ( capsErr == KErrNone ) &&
+           ( caps & MVtEngMedia::ESourceCapsStillImage );
+    }
+
+// -----------------------------------------------------------------------------
+// VtUiUtility::GetFreezeState
+// -----------------------------------------------------------------------------
+//
+TBool VtUiUtility::GetFreezeState(
+        MVtEngMedia& aMedia )
+    {
+    TBool isFrozen;
+    const TInt err = aMedia.GetFreezeState( isFrozen );
+    if ( err == KErrNone )
+        {
+        return isFrozen;
+        }
+    else //provider was not ready
+        {
+        return EFalse;
+        }
+    }
+
+// -----------------------------------------------------------------------------
+// VtUiUtility::IsFreezeSupported
+// -----------------------------------------------------------------------------
+//
+TBool VtUiUtility::IsFreezeSupported(
+        MVtEngMedia& aMedia )
+    {
+    TBool isFreezeSupported;
+    const TInt err = aMedia.GetFreezeSupported( isFreezeSupported );
+    if ( err == KErrNone )
+        {
+        return isFreezeSupported;
+        }
+    else //provider was not ready
+        {
+        return EFalse;
+        }
+    }
+
+// -----------------------------------------------------------------------------
+// VtUiUtility::GetVideoQuality
+// -----------------------------------------------------------------------------
+//
+void VtUiUtility::GetVideoQuality(
+        	MVtEngMedia& aMedia,
+        	MVtEngMedia::TVideoQuality& aVideoQuality )
+    {
+    aMedia.GetVideoQuality( aVideoQuality );
+    }
+
+// -----------------------------------------------------------------------------
+// VtUiUtility::GetObjectSharingState
+// -----------------------------------------------------------------------------
+//
+void VtUiUtility::GetObjectSharingState(
+    MVtEngMedia& aMedia,
+    MVtEngMedia::TShareObjectState& aShareObjectState )
+    {
+    aMedia.GetObjectSharingState( aShareObjectState );
+    }
+
+
+// -----------------------------------------------------------------------------
+// VtUiUtility::IsZoomAllowed
+// -----------------------------------------------------------------------------
+//
+TBool VtUiUtility::IsZoomAllowed(
+        MVtEngMedia& aMedia )
+    {
+    TBool result = EFalse;
+
+    TInt currentStep;
+    if ( aMedia.GetCurrentZoomStep( currentStep ) == KErrNone )
+        {
+        TInt max;
+        if ( aMedia.GetMaxZoomStep( max ) == KErrNone )
+            {
+            // Zooming is allowed if maximum zoom step is greater than
+            // zero and camera is in use (and not still image / none).
+            TInt avail;
+            GetOutgoingMediaState( aMedia, avail );
+
+            result = ( max > 0 ) && ( avail & MVtEngMedia::EMediaVideo );
+            }
+        }
+
+    __VTPRINT2( DEBUG_GEN, "Ui.AllowZoom.%d", result )
+    return result;
+    }
+
+// -----------------------------------------------------------------------------
+// VtUiUtility::HasCameras
+// -----------------------------------------------------------------------------
+//
+TBool VtUiUtility::HasCameras( MVtEngMedia& aMedia )
+    {
+    TInt sourceCaps;
+    if ( aMedia.GetSourcesCaps( sourceCaps ) != KErrNone )
+        {
+        sourceCaps = 0;
+        }
+    return ( sourceCaps & MVtEngMedia::ESourceCapsPrimaryCamera ) ||
+           ( sourceCaps & MVtEngMedia::ESourceCapsSecondaryCamera );
+    }
+
+// -----------------------------------------------------------------------------
+// VtUiUtility::IsAudioRoutingAvailable
+// -----------------------------------------------------------------------------
+//
+TBool VtUiUtility::IsAudioRoutingAvailable(
+        MVtEngAudio& aAudio,
+        const MVtEngAudio::TAudioRoutingState aCurrent,
+        const MVtEngAudio::TAudioRoutingState aSource,
+        const MVtEngAudio::TAudioRoutingState aTarget )
+    {
+    TBool result = EFalse;
+    if ( aCurrent == aSource )
+        {
+        TBool available = EFalse;
+        TInt err = aAudio.GetRoutingAvailability( aTarget, available );
+
+        result = ( ( err == KErrNone ) && ( available ) );
+        }
+
+    return result;
+    }
+
+
+// -----------------------------------------------------------------------------
+// VtUiUtility::IsDTMFEvent
+// -----------------------------------------------------------------------------
+//
+TBool VtUiUtility::IsDTMFEvent( const TKeyEvent& aKeyEvent, TChar& aDtmfTone )
+    {
+    TBuf<1> buffer; // one character
+    buffer.Append( aKeyEvent.iCode );
+    AknTextUtils::ConvertDigitsTo( buffer, EDigitTypeWestern );
+    aDtmfTone = buffer[ 0 ];
+    return
+        ( KVtUiDTMFCharacters().Locate( buffer[ 0 ] ) != KErrNotFound );
+    }
+
+// -----------------------------------------------------------------------------
+// VtUiUtility::IsDTMFCharacter
+// -----------------------------------------------------------------------------
+//
+TBool VtUiUtility::IsDTMFCharacter( const TChar aChar )
+    {
+    return
+        ( KVtUiDTMFCharacters().Locate( aChar ) != KErrNotFound );
+    }
+
+//  End of File