--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/vtprotocolplugins/DisplaySink/src/CVtImageRotator.cpp	Mon Nov 23 14:47:47 2009 +0200
@@ -0,0 +1,244 @@
+/*
+* 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:  Image Transforms subsystem.
+*
+*/
+
+
+// INCLUDE FILES
+
+#include <e32svr.h>
+#include <fbs.h>
+
+#include "cvtimagerotator.h"
+#include "CVtImageRotatorImplMirrorFlip.h"
+#include "CVtImageRotatorImplClockwise.h"
+
+// CONSTANTS
+
+_LIT( KModuleName, "CVtImageRotator" );
+
+// MACROS
+
+#ifdef _DEBUG
+#    define __IF_DEBUG(t) {RDebug::t;}
+#else
+#    define __IF_DEBUG(t)
+#endif
+
+// ============================ MEMBER FUNCTIONS ===============================
+
+// -----------------------------------------------------------------------------
+// CVtImageRotator::NewL( MVtImageRotatorObserver& aObserver,
+//  TPriority aPriority )
+// -----------------------------------------------------------------------------
+EXPORT_C CVtImageRotator* CVtImageRotator::NewL(
+    MVtImageRotatorObserver& aObserver,
+    TPriority aPriority)
+    {
+    CVtImageRotator* self = new ( ELeave ) CVtImageRotator( aObserver, aPriority );
+    CleanupStack::PushL( self );
+    self->ConstructL();
+    CleanupStack::Pop(); // self
+    return self;
+    }
+
+// -----------------------------------------------------------------------------
+// CVtImageRotator::~CVtImageRotator()
+// -----------------------------------------------------------------------------
+EXPORT_C CVtImageRotator::~CVtImageRotator()
+    {
+	Cancel();
+    delete iAsyncCallBack;
+    delete iHeapLock;
+	delete iRotatorImpl;
+    }
+
+// -----------------------------------------------------------------------------
+// CVtImageRotator::ScaleL( const CVtImage& aSource,
+//  CVtImage& aTarget, const TRotationAngle& aAngle )
+// -----------------------------------------------------------------------------
+EXPORT_C void CVtImageRotator::RotateL( const CVtImage& aSource,
+    CVtImage& aTarget, const TRotationAngle& aAngle )
+    {
+    if ( !IsActive() )
+        {
+        CreateRotatorL( aAngle );
+        iRotatorImpl->SetSourceTargetL( aSource, aTarget );
+        iCancelled = EFalse;
+        Activate();
+        iAsyncCallBack->CallBack();
+        }
+    else
+        {
+        User::Panic( KModuleName(), EBusy );
+        }
+    }
+
+// -----------------------------------------------------------------------------
+// CVtImageRotator::Rotate
+// -----------------------------------------------------------------------------
+EXPORT_C void CVtImageRotator::Rotate(
+    const CVtImage& aSource,
+    CVtImage& aTarget, const TRotationAngle& aAngle )
+    {
+    TRAPD( result, RotateL( aSource, aTarget, aAngle ) );
+    if ( result != KErrNone )
+        {
+        Activate();
+        Signal( result );
+        }
+    }
+
+// -----------------------------------------------------------------------------
+// CVtImageRotator::CVtImageRotator( MVtImageRotatorObserver& aObserver,
+//  TPriority aPriority )
+// -----------------------------------------------------------------------------
+CVtImageRotator::CVtImageRotator( MVtImageRotatorObserver& aObserver,
+                                  TPriority aPriority )
+: CActive( aPriority ), iObserver( aObserver )
+    {
+    CActiveScheduler::Add( this );
+    }
+
+// -----------------------------------------------------------------------------
+// CVtImageRotator::ConstructL()
+// -----------------------------------------------------------------------------
+void CVtImageRotator::ConstructL()
+    {
+    iHeapLock = new ( ELeave ) CFbsBitmap();
+    iHeapLock->Create( TSize( 1, 1 ), EColor256 );
+    iAsyncCallBack = new ( ELeave )
+        CAsyncCallBack( TCallBack( StaticRotate, this ), Priority() );
+    }
+
+// -----------------------------------------------------------------------------
+// CVtImageRotator::CreateRotatorL( const TRotationAngle& aAngle )
+// -----------------------------------------------------------------------------
+void CVtImageRotator::CreateRotatorL( const TRotationAngle& aAngle )
+    {
+    if( iRotatorImpl )
+        {
+        if( iRotatorImpl->SupportsRotationAngle( aAngle ) )
+            {
+            iRotatorImpl->SetAngle( aAngle );
+            return;
+            }
+        delete iRotatorImpl;
+        iRotatorImpl = 0;
+        }
+
+    switch( aAngle )
+        {
+        case E90DegreesClockwise:
+        case E270DegreesClockwise:
+            iRotatorImpl =
+                new ( ELeave ) CVtImageRotatorImplClockwise( aAngle );
+            break;
+
+        case EMirrorHorizontalAxis:
+        case EFlipVerticalAxis:
+        case E180DegreesClockwise:
+            iRotatorImpl =
+                new ( ELeave ) CVtImageRotatorImplMirrorFlip( aAngle );
+            break;
+
+        default:
+            User::Leave( KErrNotSupported );
+        }
+    }
+
+// -----------------------------------------------------------------------------
+// CVtImageRotator::Activate
+// -----------------------------------------------------------------------------
+void CVtImageRotator::Activate()
+    {
+    iStatus = KRequestPending;
+    SetActive();
+    }
+
+// -----------------------------------------------------------------------------
+// CVtImageRotator::Signal( TInt aError )
+// -----------------------------------------------------------------------------
+void CVtImageRotator::Signal( TInt aError )
+    {
+    TRequestStatus* pStatus = &iStatus;
+    User::RequestComplete( pStatus, aError );
+    }
+
+// -----------------------------------------------------------------------------
+// CVtImageRotator::RunL()
+// -----------------------------------------------------------------------------
+void CVtImageRotator::RunL()
+    {
+    iObserver.RotationFinished( iStatus.Int() );
+    }
+
+// -----------------------------------------------------------------------------
+// CVtImageRotator::DoCancel()
+// -----------------------------------------------------------------------------
+void CVtImageRotator::DoCancel()
+    {
+    if ( iStatus == KRequestPending )
+        {
+        iCancelled = ETrue;
+        Signal( KErrCancel );
+        iObserver.RotationFinished( KErrCancel );
+        }
+    }
+
+// -----------------------------------------------------------------------------
+// CVtImageRotator::StaticRotate()
+// -----------------------------------------------------------------------------
+TInt CVtImageRotator::StaticRotate( TAny* aPtr )
+    {
+    CVtImageRotator* self = reinterpret_cast< CVtImageRotator* >( aPtr );
+    self->DoRotate();
+    return KErrNone;
+    }
+
+// -----------------------------------------------------------------------------
+// CVtImageRotator::DoRotate
+// -----------------------------------------------------------------------------
+void CVtImageRotator::DoRotate()
+    {
+    if ( !iCancelled )
+        {
+        TBool more;
+        TBool needsLock = iRotatorImpl->NeedHeapLock();
+        if( needsLock )
+            {
+            iHeapLock->LockHeap( ETrue );
+            }
+        TInt result = iRotatorImpl->Rotate( more );
+        if( needsLock )
+            {
+            iHeapLock->UnlockHeap( ETrue );
+            }
+        if( !more || ( result != KErrNone ) )
+            {
+            Signal( result );
+            }
+        else
+            {
+            iAsyncCallBack->CallBack();
+            }
+        }
+    }
+
+// ========================== OTHER EXPORTED FUNCTIONS =========================
+
+// End of File
+
+