--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/localconnectivityservice/obexsendservices/obexservicesendutils/src/BTSUImageConverter.cpp	Wed Sep 01 12:20:40 2010 +0100
@@ -0,0 +1,349 @@
+/*
+* 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:  Tools for image conversion.
+*
+*/
+
+
+// INCLUDE FILES
+#include "BTServiceUtils.h"
+#include "BTSUImageConverter.h"
+#include "BTSUDebug.h"
+
+#include <imageconversion.h>
+#include <bitmaptransforms.h>
+
+//CONSTANTS
+_LIT8( KBTSUImageTypeJpeg, "image/jpeg" );
+const TInt KBTSUJpegQualityFactor = 90;
+const TInt KBTSUImageThumbWidth   = 160;  
+const TInt KBTSUImageThumbHeight  = 120;
+
+
+// ============================ MEMBER FUNCTIONS ===============================
+
+// -----------------------------------------------------------------------------
+// CBTSUImageConverter::CBTSUImageConverter
+// Constructor.
+// -----------------------------------------------------------------------------
+//
+CBTSUImageConverter::CBTSUImageConverter(): CActive( EPriorityStandard )
+    {
+    CActiveScheduler::Add( this );
+    }
+
+// -----------------------------------------------------------------------------
+// Destructor
+// -----------------------------------------------------------------------------
+//
+CBTSUImageConverter::~CBTSUImageConverter()
+    {
+    FLOG(_L("[BTSU]\t CBTSUImageConverter::~CBTSUImageConverter()"));
+
+    Cancel();
+    Reset();
+    iFileSession.Close();
+
+    FLOG(_L("[BTSU]\t CBTSUImageConverter::~CBTSUImageConverter() completed"));
+    }
+
+// -----------------------------------------------------------------------------
+// CBTSUImageConverter::NewL
+// Two-phased constructor.
+// -----------------------------------------------------------------------------
+//
+CBTSUImageConverter* CBTSUImageConverter::NewL()
+    {
+    CBTSUImageConverter* self = new (ELeave) CBTSUImageConverter;
+    CleanupStack::PushL( self );
+    self->ConstructL();
+    CleanupStack::Pop();
+    return self;
+    }
+
+// -----------------------------------------------------------------------------
+// CBTSUImageConverter::ConstructL
+// Symbian 2nd phase constructor.
+// -----------------------------------------------------------------------------
+//
+void CBTSUImageConverter::ConstructL()
+    {
+    FLOG(_L("[BTSU]\t CBTSUImageConverter::ConstructL()"));
+ 
+    User::LeaveIfError( iFileSession.Connect() );
+    iFileSession.ShareProtected();
+
+    FLOG(_L("[BTSU]\t CBTSUImageConverter::ConstructL() completed"));
+    }
+
+// -----------------------------------------------------------------------------
+// CBTSUImageConverter::GetImageSizeL
+// -----------------------------------------------------------------------------
+//
+TSize CBTSUImageConverter::GetImageSizeL( RFile& aImageFile )
+    {
+    FLOG(_L("[BTSU]\t CBTSUImageConverter::GetImageSizeL()"));
+   
+    CImageDecoder* decoder = CImageDecoder::FileNewL(aImageFile,ContentAccess::EPeek );
+    TSize size = decoder->FrameInfo().iOverallSizeInPixels;
+    delete decoder;
+
+    FTRACE(FPrint(_L("[BTSU]\t CBTSUImageConverter::GetImageSizeL() completed w=%d h=%d"), size.iWidth, size.iHeight ));
+
+    return size;
+    }
+
+// -----------------------------------------------------------------------------
+// CBTSUImageConverter::CreateThumbnailL
+// -----------------------------------------------------------------------------
+//
+void CBTSUImageConverter::CreateThumbnailL( RFile& aSourceFile, 
+                                            const TDesC& aDestFile )
+    {
+    FLOG(_L("[BTSU]\t CBTSUImageConverter::CreateThumbnailL()"));
+    
+
+    Reset();
+    DecodeImageL( aSourceFile );
+    ScaleImageL();
+    EncodeImageL( aDestFile, ETrue );
+    Reset();
+
+    FLOG(_L("[BTSU]\t CBTSUImageConverter::CreateThumbnailL() completed"));
+    }
+
+// -----------------------------------------------------------------------------
+// CBTSUImageConverter::GetDisplayNameL
+// -----------------------------------------------------------------------------
+//
+HBufC* CBTSUImageConverter::GetDisplayNameL( const TDesC8& aMimeType )
+    {
+    FLOG(_L("[BTSU]\t CBTSUImageConverter::GetDisplayNameL()"));
+
+    if ( &aMimeType == NULL || 
+         aMimeType.Length() == 0 || 
+         aMimeType.Length() > KMaxFileName )
+        {
+        User::Leave( KErrArgument );
+        }
+
+    HBufC* name = NULL;
+
+    // Get file types from decoder
+    //
+    RFileExtensionMIMETypeArray fileTypes;
+    CleanupResetAndDestroyPushL( fileTypes );
+    CImageDecoder::GetFileTypesL( fileTypes );
+    
+    // Find the display name for the mime type
+    //
+    for( TInt index = 0; index < fileTypes.Count(); index++ )
+        {
+        if ( fileTypes[index]->MIMEType() == aMimeType )
+            {
+            name = fileTypes[index]->DisplayName().AllocL();
+            break;
+            }
+        }
+
+    CleanupStack::PopAndDestroy(); // fileTypes 
+
+    if ( name == NULL )
+        {
+        // No display name found, so the image type is not supported.
+        //
+        User::Leave( KErrNotSupported );
+        }
+
+    FLOG(_L("[BTSU]\t CBTSUImageConverter::GetDisplayNameL() completed"));
+
+    return name;
+    }
+
+
+// -----------------------------------------------------------------------------
+// CBTSUImageConverter::DoCancel
+// -----------------------------------------------------------------------------
+//
+void CBTSUImageConverter::DoCancel()
+    {
+    FLOG(_L("[BTSU]\t CBTSUImageConverter::DoCancel()"));
+
+    if ( iDecoder )
+        {
+        iDecoder->Cancel();
+        }
+    if ( iScaler )
+        {
+        iScaler->Cancel();
+        }
+    if ( iEncoder )
+        {
+        iEncoder->Cancel();
+        }
+
+    FLOG(_L("[BTSU]\t CBTSUImageConverter::DoCancel() completed"));
+    }
+
+// -----------------------------------------------------------------------------
+// CBTSUImageConverter::RunL
+// -----------------------------------------------------------------------------
+//
+void CBTSUImageConverter::RunL()
+    {
+    FTRACE(FPrint(_L("[BTSU]\t CBTSUImageConverter::RunL() %d"), iStatus.Int() ));
+
+    iWait.AsyncStop();
+
+    FLOG(_L("[BTSU]\t CBTSUImageConverter::RunL() completed"));
+    }
+
+// -----------------------------------------------------------------------------
+// CBTSUImageConverter::DecodeImageL
+// -----------------------------------------------------------------------------
+//
+void CBTSUImageConverter::DecodeImageL( RFile& aSourceFile )
+    {
+    FLOG(_L("[BTSU]\t CBTSUImageConverter::DecodeImageL( )"));
+
+    __ASSERT_DEBUG( iDecoder == NULL, BTSUPanic( EBTSUPanicExistingObject ) );
+    __ASSERT_DEBUG( iFrameBitmap == NULL, BTSUPanic( EBTSUPanicExistingObject ) );
+
+    // Create decoder
+    //    
+    iDecoder = CImageDecoder::FileNewL(aSourceFile, ContentAccess::EPeek );
+
+    // Create a bitmap
+    //
+    iFrameBitmap = new ( ELeave ) CFbsBitmap;
+    User::LeaveIfError( iFrameBitmap->Create( 
+        iDecoder->FrameInfo().iOverallSizeInPixels,
+        iDecoder->FrameInfo().iFrameDisplayMode ) );
+    
+    // Start decoding
+    //
+    iDecoder->Convert( &iStatus, *iFrameBitmap );
+    SetActive();
+
+    iWait.Start(); // Wait here until decoding is completed
+    User::LeaveIfError( iStatus.Int() );
+
+    FLOG(_L("[BTSU]\t CBTSUImageConverter::DecodeImageL() completed"));
+    }
+
+// -----------------------------------------------------------------------------
+// CBTSUImageConverter::EncodeImageL
+// -----------------------------------------------------------------------------
+//
+void CBTSUImageConverter::EncodeImageL( const TDesC& aDestFile, 
+                                        const TBool& aThumbnail )
+    {
+    FLOG(_L("[BTSU]\t CBTSUImageConverter::EncodeImageL()"));
+
+    __ASSERT_DEBUG( iDecoder != NULL, BTSUPanic( EBTSUPanicNullPointer ) );
+    __ASSERT_DEBUG( iEncoder == NULL, BTSUPanic( EBTSUPanicExistingObject ) );
+    __ASSERT_DEBUG( iFrameImageData == NULL, BTSUPanic( EBTSUPanicExistingObject ) );
+
+    // Create encoder
+    //
+    iEncoder = CImageEncoder::FileNewL( iFileSession, aDestFile, KBTSUImageTypeJpeg() );
+
+    // Create frame image data
+    //
+    iFrameImageData = CFrameImageData::NewL();
+    TJpegImageData* jpegFormat = new ( ELeave ) TJpegImageData;
+    CleanupStack::PushL( jpegFormat );
+
+    jpegFormat->iSampleScheme = TJpegImageData::EColor422;
+    jpegFormat->iQualityFactor = KBTSUJpegQualityFactor;
+    User::LeaveIfError( iFrameImageData->AppendImageData( jpegFormat ) );
+    CleanupStack::Pop( jpegFormat );
+
+    // Start encoding
+    //
+    if ( aThumbnail )
+        {
+        __ASSERT_DEBUG( iScaledBitmap != NULL, BTSUPanic( EBTSUPanicNullPointer ) );
+        iEncoder->Convert( &iStatus, *iScaledBitmap, iFrameImageData );
+        }
+    else
+        {
+        __ASSERT_DEBUG( iFrameBitmap != NULL, BTSUPanic( EBTSUPanicNullPointer ) );
+        iEncoder->Convert( &iStatus, *iFrameBitmap, iFrameImageData );
+        }
+    
+    SetActive();
+    iWait.Start(); // Wait here until encoding is completed
+    User::LeaveIfError( iStatus.Int() );
+
+    FLOG(_L("[BTSU]\t CBTSUImageConverter::EncodeImageL() completed"));
+    }
+
+// -----------------------------------------------------------------------------
+// CBTSUImageConverter::ScaleImageL
+// -----------------------------------------------------------------------------
+//
+void CBTSUImageConverter::ScaleImageL()
+    {
+    FLOG(_L("[BTSU]\t CBTSUImageConverter::ScaleImageL( )"));
+
+    __ASSERT_DEBUG( iDecoder != NULL, BTSUPanic( EBTSUPanicNullPointer ) );
+    __ASSERT_DEBUG( iFrameBitmap != NULL, BTSUPanic( EBTSUPanicNullPointer ) );
+    __ASSERT_DEBUG( iScaler == NULL, BTSUPanic( EBTSUPanicExistingObject ) );
+    __ASSERT_DEBUG( iScaledBitmap == NULL, BTSUPanic( EBTSUPanicExistingObject ) );
+
+    // Create scaler
+    //
+    iScaler = CBitmapScaler::NewL();
+
+    // Create a bitmap
+    //
+    iScaledBitmap = new ( ELeave ) CFbsBitmap;
+    TSize size;
+    size.iWidth = KBTSUImageThumbWidth;
+    size.iHeight = KBTSUImageThumbHeight;
+    User::LeaveIfError( iScaledBitmap->Create( size,
+        iDecoder->FrameInfo().iFrameDisplayMode ) );
+    
+    // Start scaling
+    //
+    iScaler->Scale( &iStatus, *iFrameBitmap, *iScaledBitmap, EFalse );
+    SetActive();
+
+    iWait.Start(); // Wait here until scaling is completed
+    User::LeaveIfError( iStatus.Int() );
+
+    FLOG(_L("[BTSU]\t CBTSUImageConverter::ScaleImageL() completed"));
+    }
+
+// -----------------------------------------------------------------------------
+// CBTSUImageConverter::Reset
+// -----------------------------------------------------------------------------
+//
+void CBTSUImageConverter::Reset()
+    {
+    FLOG(_L("[BTSU]\t CBTSUImageConverter::Reset()"));
+
+    delete iDecoder; iDecoder = NULL;
+    delete iEncoder; iEncoder = NULL;
+    delete iScaler; iScaler = NULL;
+    
+    delete iFrameImageData; iFrameImageData = NULL;
+    delete iFrameBitmap; iFrameBitmap = NULL;
+    delete iScaledBitmap; iScaledBitmap = NULL;
+
+    FLOG(_L("[BTSU]\t CBTSUImageConverter::Reset() completed"));
+    }
+
+//  End of File