browserui/browser/FavouritesSrc/BrowserFaviconScaler.cpp
changeset 0 84ad3b177aa3
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/browserui/browser/FavouritesSrc/BrowserFaviconScaler.cpp	Mon Mar 30 12:49:49 2009 +0300
@@ -0,0 +1,165 @@
+/*
+* Copyright (c) 2005 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of the License "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: 
+*
+*/
+
+
+
+// INCLUDE FILES
+
+#include "BrowserFaviconScaler.h"
+
+#include <fbs.h>
+#include <BitmapTransforms.h>
+
+// EXTERNAL DATA STRUCTURES
+
+// EXTERNAL FUNCTION PROTOTYPES
+
+// CONSTANTS
+
+// MACROS
+
+// LOCAL CONSTANTS AND MACROS
+
+// MODULE DATA STRUCTURES
+
+// LOCAL FUNCTION PROTOTYPES
+
+// FORWARD DECLARATIONS
+
+// ============================= LOCAL FUNCTIONS ===============================
+
+
+// ============================ MEMBER FUNCTIONS ===============================
+
+// -----------------------------------------------------------------------------
+// CBrowserFaviconScaler::CBrowserFaviconScaler
+// C++ default constructor can NOT contain any code, that
+// might leave.
+// -----------------------------------------------------------------------------
+//
+CBrowserFaviconScaler::CBrowserFaviconScaler(MBrowserFaviconScalerCallback& aCallback)
+    : CActive(CActive::EPriorityIdle-1), iCallback(&aCallback)
+    {
+    CActiveScheduler::Add(this);
+    }
+
+// -----------------------------------------------------------------------------
+// CBrowserFaviconScaler::ConstructL
+// Symbian 2nd phase constructor can leave.
+// -----------------------------------------------------------------------------
+//
+void CBrowserFaviconScaler::ConstructL()
+    {
+    iScaler = CBitmapScaler::NewL();
+    }
+
+// -----------------------------------------------------------------------------
+// CBrowserFaviconScaler::NewL
+// Two-phased constructor.
+// -----------------------------------------------------------------------------
+//
+CBrowserFaviconScaler* CBrowserFaviconScaler::NewL(MBrowserFaviconScalerCallback& aCallback)
+    {
+    CBrowserFaviconScaler* self = new( ELeave ) CBrowserFaviconScaler(aCallback);
+
+    CleanupStack::PushL( self );
+    self->ConstructL();
+    CleanupStack::Pop();
+
+    return self;
+    }
+
+
+// Destructor
+CBrowserFaviconScaler::~CBrowserFaviconScaler()
+    {
+    Cancel();
+    delete iScaler;
+    //delete iResultBitmap;
+    }
+
+
+// -----------------------------------------------------------------------------
+// CBrowserFaviconScaler::StartScalingL
+//
+//
+// -----------------------------------------------------------------------------
+//
+void CBrowserFaviconScaler::StartScalingL(CFbsBitmap& aSource, const TRect& aTargetRect, TBool aIsMask)
+    {
+    // cancel outstanding request
+    Cancel();
+
+    // create target bitmap
+    iResultBitmap = new (ELeave) CFbsBitmap();
+    TDisplayMode dispMode = (aIsMask) ? EGray256 : aSource.DisplayMode();
+    User::LeaveIfError(iResultBitmap->Create(aTargetRect.Size(), dispMode));
+    
+    // start scaling, async
+    iTargetRect = aTargetRect;
+    iScaler->Scale(&iStatus, aSource, *iResultBitmap, EFalse);
+
+    SetActive();
+    }
+
+// -----------------------------------------------------------------------------
+// CPageOverview::DeleteResultBitmap
+//
+//
+// -----------------------------------------------------------------------------
+//
+void CBrowserFaviconScaler::DeleteResultBitmap()
+    {
+    delete iResultBitmap;
+    iResultBitmap = 0;
+    }
+
+
+// -----------------------------------------------------------------------------
+// CPageOverview::DoCancel
+//
+//
+// -----------------------------------------------------------------------------
+//
+void CBrowserFaviconScaler::DoCancel()
+    {
+    iScaler->Cancel();
+    DeleteResultBitmap();
+    }
+
+
+// -----------------------------------------------------------------------------
+// CPageOverview::RunL
+//
+//
+// -----------------------------------------------------------------------------
+//
+void CBrowserFaviconScaler::RunL()
+    {
+    iCallback->ScalingCompletedL(iResultBitmap, iTargetRect);
+    // if the callback called StartScalingL(), we must not delete the bitmap
+    if (!IsActive())
+        {
+        //DeleteResultBitmap();
+        }
+    }
+
+
+// ========================== OTHER EXPORTED FUNCTIONS =========================
+
+
+//  End of File