--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mmappcomponents/mmappcommonui/albumartutility/src/mpxalbumartutility.cpp	Thu Dec 17 08:55:47 2009 +0200
@@ -0,0 +1,319 @@
+/*
+* Copyright (c) 2006 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:  MPX album utility API 
+*
+*/
+
+#include <e32std.h>
+#include <mpxuser.h>
+#include <mpxmedia.h>
+#include <mpxmediamusicdefs.h>
+#include <mpxmediageneraldefs.h>
+#include <mpxlog.h>
+
+#include "mpximageutil.h"
+#include "mpximageutilsync.h"
+#include "mpxalbumartutility.h"
+
+// ============================== MEMBER FUNCTIONS ============================
+
+// ----------------------------------------------------------------------------
+// Create the playback utility object
+// ----------------------------------------------------------------------------
+//
+EXPORT_C CMPXAlbumArtUtility* CMPXAlbumArtUtility::NewL()
+    {
+    CMPXAlbumArtUtility* self = new( ELeave )CMPXAlbumArtUtility();
+    CleanupStack::PushL( self );
+    self->ConstructL();
+    CleanupStack::Pop( self );
+    return self;
+    }
+
+// ----------------------------------------------------------------------------
+// Destructor
+// ----------------------------------------------------------------------------
+//
+EXPORT_C CMPXAlbumArtUtility::~CMPXAlbumArtUtility()
+    {
+    delete iImageUtil;
+    delete iImageUtilSync;
+    delete iBitmap;
+    delete iAlbumArt;
+    }
+
+// ----------------------------------------------------------------------------
+// Constructor
+// ----------------------------------------------------------------------------
+//
+CMPXAlbumArtUtility::CMPXAlbumArtUtility() :
+    CActive( EPriorityStandard )
+    {
+    CActiveScheduler::Add( this );
+    }
+    
+// ----------------------------------------------------------------------------
+// Constructor
+// ----------------------------------------------------------------------------
+//
+void CMPXAlbumArtUtility::ConstructL()
+    {
+    iImageUtil = CMPXImageUtil::NewL(); 
+    iImageUtilSync = CMPXImageUtilSync::NewL(); 
+    iBitmap = new ( ELeave ) CFbsBitmap();  
+    }
+
+// ----------------------------------------------------------------------------
+// Create the playback utility object
+// ----------------------------------------------------------------------------
+//
+EXPORT_C void CMPXAlbumArtUtility::ExtractAlbumArtL(const CMPXMedia& aMedia,
+                                            MMPXAlbumArtUtilityObserver& aObs,
+                                            const TSize& aSize, 
+                                            TDisplayMode aDisplayMode /*= EColor64K*/)
+    {
+    MPX_FUNC_EX( "CMPXAlbumArtUtility::ExtractAlbumArtL" );
+
+    if ( iCurrentOp != EIdle )
+        {
+        User::Leave( KErrNotReady );
+        }
+
+    if ( aMedia.IsSupported( KMPXMediaMusicAlbumArtFileName ) )
+        {
+        if ( aMedia.ValueText( KMPXMediaMusicAlbumArtFileName ).Length() == 0)
+            {
+            User::Leave( KErrNotFound );
+            }
+        }
+
+    if ( aMedia.IsSupported( KMPXMediaGeneralUri ) &&
+         aMedia.IsSupported( KMPXMediaMusicAlbumArtFileName ))
+        {
+        if ( aMedia.ValueText( KMPXMediaGeneralUri ).CompareF( 
+             aMedia.ValueText( KMPXMediaMusicAlbumArtFileName ) ) == 0 )
+            { // embedded album art            
+            iObs = &aObs;
+            delete iAlbumArt;
+            iAlbumArt = NULL;
+            iAlbumArt = iImageUtil->ExtractL( aMedia.ValueText( KMPXMediaMusicAlbumArtFileName ) );
+            if ( iAlbumArt )
+                {
+                iCurrentOp = EExtractAlbumArtL;
+                iObs->ExtractAlbumArtStarted();
+                SetActive();
+                iImageUtil->Decode( iStatus, *iAlbumArt, *iBitmap, aSize, aDisplayMode );                
+                }
+            else
+                {
+                User::Leave( KErrUnderflow );
+                }            
+            }
+        else
+            {
+            iCurrentOp = EExtractAlbumArtL;
+            // TO-DO: if we save externalize bitmap, we only need to internalize bitmap here.
+            iObs->ExtractAlbumArtStarted();
+            SetActive();
+            iImageUtil->Decode( iStatus, aMedia.ValueText( 
+                KMPXMediaMusicAlbumArtFileName ), *iBitmap, aSize, aDisplayMode );
+            }    
+        }
+    else
+        {
+        User::Leave( KErrNotFound );
+        }
+    }
+
+// -----------------------------------------------------------------------------
+// Asynchronously decodes an image from a JPG file. Generates a BMP in memory.
+// -----------------------------------------------------------------------------
+//
+EXPORT_C void CMPXAlbumArtUtility::Decode(
+    TRequestStatus& aStatus, const TDesC& aSourceJPGFile, 
+    CFbsBitmap& aDestBMP, TSize aSize, TDisplayMode aDisplayMode )
+    {
+    MPX_FUNC_EX( "CMPXAlbumArtUtility::Decode Async File" );
+    iImageUtil->Decode( aStatus, aSourceJPGFile, aDestBMP, aSize, aDisplayMode );
+    }
+
+// -----------------------------------------------------------------------------
+// Asynchronously decodes an image from JPG buffer. Generates a BMP in memory.
+// -----------------------------------------------------------------------------
+//
+EXPORT_C void CMPXAlbumArtUtility::Decode(
+    TRequestStatus& aStatus, const TDesC8& aSourceJPG, 
+    CFbsBitmap& aDestBMP, TSize aSize, TDisplayMode aDisplayMode )
+    {
+    MPX_FUNC_EX( "CMPXAlbumArtUtility::Decode Async Buffer" );
+    iImageUtil->Decode( aStatus, aSourceJPG, aDestBMP, aSize, aDisplayMode );
+    }
+    
+// -----------------------------------------------------------------------------
+// Asynchronously encodes a BMP to a JPG.
+// -----------------------------------------------------------------------------
+//
+EXPORT_C void CMPXAlbumArtUtility::Encode(
+    TRequestStatus& aStatus, const CFbsBitmap& aSourceBMP, 
+    HBufC8*& aDestJPG )
+    {
+    MPX_FUNC_EX( "CMPXAlbumArtUtility::Encode Async" );
+    iImageUtil->Encode( aStatus, aSourceBMP, aDestJPG );
+    }
+    
+// -----------------------------------------------------------------------------
+// Asynchronously scales a BMP to a specified size. Generates another
+// -----------------------------------------------------------------------------
+//
+EXPORT_C void CMPXAlbumArtUtility::Scale(
+    TRequestStatus& aStatus, CFbsBitmap& aSourceBMP, CFbsBitmap& aDestBMP,
+    TSize aSize, TDisplayMode aDisplayMode )
+    {
+    MPX_FUNC_EX( "CMPXAlbumArtUtility::Scale Async" );
+    iImageUtil->Scale( aStatus, aSourceBMP, aDestBMP, aSize, aDisplayMode );
+    }
+    
+// -----------------------------------------------------------------------------
+// Synchronously decodes an image from a JPG file. 
+// -----------------------------------------------------------------------------
+//
+EXPORT_C CFbsBitmap* CMPXAlbumArtUtility::DecodeL(
+    const TDesC& aSourceJPGFile, TSize aSize, TDisplayMode aDisplayMode )
+    {
+    MPX_FUNC_EX( "CMPXAlbumArtUtility::DecodeL Sync File" );
+    return iImageUtilSync->DecodeL( aSourceJPGFile, aSize, aDisplayMode );
+    }
+
+// -----------------------------------------------------------------------------
+// Synchronously converts a JPG buffer to an CFbsBitmap.
+// -----------------------------------------------------------------------------
+//
+EXPORT_C CFbsBitmap* CMPXAlbumArtUtility::DecodeL(
+    const TDesC8& aSourceJPG, TSize aSize, TDisplayMode aDisplayMode )
+    {
+    MPX_FUNC_EX( "CMPXAlbumArtUtility::DecodeL Sync Buffer" );
+    return iImageUtilSync->DecodeL( aSourceJPG, aSize, aDisplayMode );
+    }
+    
+// -----------------------------------------------------------------------------
+// Synchronously encodes a BMP to JPG.
+// -----------------------------------------------------------------------------
+//
+EXPORT_C HBufC8* CMPXAlbumArtUtility::EncodeL( const CFbsBitmap& aSourceBMP )
+    {
+    MPX_FUNC_EX( "CMPXAlbumArtUtility::EncodeL Sync" );
+    return iImageUtilSync->EncodeL( aSourceBMP );
+    }
+
+// -----------------------------------------------------------------------------
+// Synchronously scales a BMP to a specified size
+// -----------------------------------------------------------------------------
+//
+EXPORT_C CFbsBitmap* CMPXAlbumArtUtility::ScaleL( 
+    CFbsBitmap& aSourceBMP, TSize aSize, TDisplayMode aDisplayMode )
+    {
+    MPX_FUNC_EX( "CMPXAlbumArtUtility::ScaleL Sync" );
+    return iImageUtilSync->ScaleL( aSourceBMP, aSize, aDisplayMode );
+    }
+    
+// -----------------------------------------------------------------------------
+// Extracts embedded album art field from the media file.
+// -----------------------------------------------------------------------------
+//
+EXPORT_C HBufC8* CMPXAlbumArtUtility::ExtractL( const TDesC& aUri )
+    {
+    MPX_FUNC_EX( "CMPXAlbumArtUtility::ExtractL Sync" );
+    return iImageUtil->ExtractL( aUri );
+    }
+    
+// -----------------------------------------------------------------------------
+// Returns a new bitmap object from bitmnap data
+// -----------------------------------------------------------------------------
+//
+EXPORT_C CFbsBitmap* CMPXAlbumArtUtility::BitmapL( const TDesC8& aBMPData )
+    {
+    MPX_FUNC_EX( "CMPXAlbumArtUtility::BitmapL Sync" );
+    return iImageUtil->BitmapL( aBMPData );
+    }
+    
+// -----------------------------------------------------------------------------
+// Returns bitmap data from a bitmap object
+// -----------------------------------------------------------------------------
+//
+EXPORT_C HBufC8* CMPXAlbumArtUtility::BitmapDataL( const CFbsBitmap& aBMP )
+    {
+    MPX_FUNC_EX( "CMPXAlbumArtUtility::BitmapDataL Sync" );
+    return iImageUtil->BitmapDataL( aBMP );
+    }
+
+// -----------------------------------------------------------------------------
+// Cancel Asynch requests
+// -----------------------------------------------------------------------------
+//
+EXPORT_C void CMPXAlbumArtUtility::CancelRequest()
+    {
+    MPX_FUNC_EX( "CMPXAlbumArtUtility::CancelRequest" );
+    if ( iImageUtil )
+        {
+        iImageUtil->CancelRequest();
+        }
+    }
+
+// -----------------------------------------------------------------------------
+// CMPXImageUtilSync::DoCancel
+// -----------------------------------------------------------------------------
+//
+void CMPXAlbumArtUtility::DoCancel()
+    {
+    MPX_FUNC( "CMPXAlbumArtUtility::DoCancel" );
+    }
+
+// -----------------------------------------------------------------------------
+// CMPXImageUtilSync::RunL
+// -----------------------------------------------------------------------------
+//
+void CMPXAlbumArtUtility::RunL()
+    {
+    MPX_FUNC( "CMPXAlbumArtUtility::RunL" );
+    switch ( iCurrentOp )
+        {
+        case EExtractAlbumArtL:
+            {
+            iCurrentOp = EIdle;
+            iObs->ExtractAlbumArtCompleted( iBitmap, KErrNone );
+            delete iAlbumArt;
+            iAlbumArt = NULL;
+            iBitmap = NULL; // ownership transfered
+            iBitmap = new ( ELeave ) CFbsBitmap();
+            break;
+            }
+        default:
+            {
+            break;
+            }
+        }
+    }
+
+// -----------------------------------------------------------------------------
+// CMPXImageUtilSync::RunError
+// -----------------------------------------------------------------------------
+//
+TInt CMPXAlbumArtUtility::RunError( TInt /*aError*/ )
+    {
+    MPX_FUNC( "CMPXAlbumArtUtility::RunError" );
+    return KErrNone;
+    }
+
+
+// End of file