--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/javauis/mmapi_akn/baseline/src/cmmasnapshot.cpp	Tue Apr 27 16:30:29 2010 +0300
@@ -0,0 +1,248 @@
+/*
+* Copyright (c) 2002-2007 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 takes snapshot and resizes bitmap if needed.
+*
+*/
+
+
+//  INCLUDE FILES
+#include <jdebug.h>
+
+#include "cmmasnapshot.h"
+#include "mmmaguiplayer.h"
+#include "mmmasnapshotreadycallback.h"
+#include "mmmasnapshot.h"
+
+// CONSTANTS
+const TInt KIgnoreSize = -1;
+
+
+// CONSTRUCTION
+CMMASnapshot* CMMASnapshot::NewL(MMMAGuiPlayer* aGuiPlayer,
+                                 MMMASnapshotReadyCallback& aCallBack)
+{
+    CMMASnapshot* self = new(ELeave) CMMASnapshot(aGuiPlayer,
+            aCallBack);
+    CleanupStack::PushL(self);
+    self->ConstructL();
+    CleanupStack::Pop(); // self
+    return self;
+}
+
+CMMASnapshot::~CMMASnapshot()
+{
+    if (iScaler)
+    {
+        iScaler->Cancel();
+        delete iScaler;
+    }
+    if (iEncoder)
+    {
+        iEncoder->Cancel();
+        delete iEncoder;
+    }
+    delete iBitmap;
+    delete iBuffer;
+    delete iSettings;
+}
+
+void CMMASnapshot::ConstructL()
+{
+    CActiveScheduler::Add(this);
+    iScaler = CBitmapScaler::NewL();
+}
+
+CMMASnapshot::CMMASnapshot(MMMAGuiPlayer* aGuiPlayer,
+                           MMMASnapshotReadyCallback& aCallBack):
+        CActive(EPriorityStandard),
+        iEncoding(MMMASnapshot::EBitmap),
+        iCallBack(aCallBack),
+        iState(EIdle)
+{
+    iGUIPlayer = aGuiPlayer;
+}
+
+void CMMASnapshot::TakeSnapShotL(const TDesC& aProperties)
+{
+    // snapshot sequence is not finished
+    __ASSERT_DEBUG(iState == EIdle, User::Invariant());
+    // image buffer must be taken with ImageBuffer before taking new snapshot
+    __ASSERT_DEBUG(iBuffer == NULL, User::Invariant());
+
+    CMMAImageSettings* settings
+    = TMMAParameterValidator::ValidateImagePropertiesL(aProperties);
+    CleanupStack::PushL(settings);
+
+    delete iSettings;
+    CleanupStack::Pop(settings);
+    iSettings = settings;
+
+    // take snapshot from player. RunL is called when image is ready
+    // or error occures
+    iState = ETakingSnapshot;
+    TSize snapshotSize(iSettings->iWidth, iSettings->iHeight);
+    iEncoding = iGUIPlayer->SnapshoterL()->TakeSnapshotL(&iStatus,
+                snapshotSize,
+                *iSettings);
+    SetActive();
+}
+
+HBufC8* CMMASnapshot::ImageBuffer()
+{
+    // this must not be called when snapshot sequence is running
+    __ASSERT_DEBUG(iState == EIdle, User::Invariant());
+    HBufC8* buffer = iBuffer;
+    // caller takes ownership of the buffer
+    iBuffer = NULL;
+    return buffer;
+}
+
+void CMMASnapshot::ResizeL()
+{
+    iState = EResizing;
+    TSize imageSize(iBitmap->SizeInPixels());
+    if (iSettings->iWidth != KIgnoreSize)
+    {
+        imageSize.iWidth = iSettings->iWidth;
+    }
+    if (iSettings->iHeight != KIgnoreSize)
+    {
+        imageSize.iHeight = iSettings->iHeight;
+    }
+    if (imageSize == iBitmap->SizeInPixels())
+    {
+        // no user resizing needed, continue sequence
+        EncodeL();
+    }
+    else
+    {
+        iScaler->Scale(&iStatus, *iBitmap, imageSize, EFalse);
+        SetActive();
+    }
+}
+
+void CMMASnapshot::EncodeL()
+{
+    // CImageEncoder cannot be reused, so have to make it every time
+    CImageEncoder* encoder = CImageEncoder::DataNewL(iBuffer, *iSettings->iMimeType);
+    delete iEncoder;
+    iEncoder = encoder;
+
+    iState = EEncoding;
+    iEncoder->Convert(&iStatus, *iBitmap, iSettings->iImageData);
+    SetActive();
+}
+
+void CMMASnapshot::Completed(TInt aError)
+{
+    iStatus = aError;
+    iCallBack.SnapshotReady();
+}
+
+void CMMASnapshot::RunL()
+{
+    if (iStatus != KErrNone)
+    {
+        // Error has occured, inform java side and change state
+        iState = EIdle;
+        Completed(iStatus.Int());
+        return;
+    }
+
+    switch (iState)
+    {
+    case ETakingSnapshot:
+    {
+        DEBUG_INT("MMA::CMMASnapshot::RunL: iEncoding = %d", iEncoding);
+        if (iEncoding == MMMASnapshot::EEncoded)
+        {
+            // take encoded image from player.
+            // Ownership transfers to this class.
+            iBuffer = iGUIPlayer->SnapshoterL()->SnapshotEncoded();
+            if (!iBuffer)
+            {
+                // error has occured with taking image
+                Completed(KErrNotFound);
+            }
+            // Image is ready, update internal state and inform listener
+            // Encoded images are not resized
+            iState = EIdle;
+            Completed(KErrNone);
+        }
+        else
+        {
+            // take bitmap from player.
+            // Ownership transfers to this class.
+            iBitmap = iGUIPlayer->SnapshoterL()->SnapshotBitmap();
+            if (!iBitmap)
+            {
+                // error has occured with taking image
+                Completed(KErrNotFound);
+            }
+            // Continue to next state
+            ResizeL();
+        }
+        break;
+    }
+    case EResizing:
+    {
+        // Continue to next state
+        EncodeL();
+        break;
+    }
+    case EEncoding:
+    {
+        delete iEncoder;
+        iEncoder = NULL;
+
+        delete iBitmap;
+        iBitmap = NULL;
+        iState = EIdle;
+        // encoding is ready, inform listener
+        Completed(KErrNone);
+        break;
+    }
+    default:
+    {
+        // unknown state
+        __ASSERT_DEBUG(EFalse, User::Invariant());
+    }
+    }
+}
+
+TInt CMMASnapshot::RunError(TInt aError)
+{
+    // Reset state
+    iState = EIdle;
+    // Pass error code to observer
+    Completed(aError);
+
+    return KErrNone;
+}
+
+void CMMASnapshot::DoCancel()
+{
+    // snapshot taking cannot be cancelled
+    if (iScaler)
+    {
+        iScaler->Cancel();
+    }
+    if (iEncoder)
+    {
+        iEncoder->Cancel();
+    }
+    iState = EIdle;
+}
+
+//  END OF FILE