--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/javaextensions/pim/cntadapter/inc.s60/cpimimagescaler.h	Tue Apr 27 16:30:29 2010 +0300
@@ -0,0 +1,146 @@
+/*
+* Copyright (c) 2008 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:  Downscales images when necessary
+ *
+*/
+
+
+#ifndef CPIMIMAGESCALER_H
+#define CPIMIMAGESCALER_H
+
+//  INCLUDES
+#include <e32base.h>
+#include <imageconversion.h>
+#include <bitmaptransforms.h>
+
+// CONSTANTS
+const TInt KThumbHeight = 96;
+const TInt KThumbWidth = 80;
+const TInt KMaxJpegSize = 23296; // 80*96*3+256
+
+// CLASS DECLARATION
+
+/**
+ *  Scales bitmaps when necessary.
+ *  The purpose of this class is to resize given bitmaps to thumbnail size
+ * (80x96). If the given image is already smaller than 80x96, it is not scaled.
+ *
+ */
+NONSHARABLE_CLASS(CPIMImageScaler): public CActive
+{
+public: // type definitions
+    enum TState
+    {
+        EReady,
+        EOpening,
+        EScaling,
+        EEncoding,
+        ECompleted,
+        // Error state
+        EError
+    };
+
+public: // Constructors and destructor
+
+    /**
+     * Two-phased constructor.
+     */
+    static CPIMImageScaler* NewL();
+
+    /**
+     * Destructor.
+     */
+    virtual ~CPIMImageScaler();
+
+public: // New functions
+
+    /**
+     * Scales the bitmap to thumbnail size (80x96) if necessary.
+     * The image is not scaled, if it already is smaller than necessary.
+     *
+     * @param aSrcImage Source image.
+     * @return thumbnail sized full color JPEG as a descriptor. Caller takes
+     * the ownership.
+     */
+    HBufC8* ScaleL(TDesC8& aSrcImage);
+
+public: // CActive
+    void RunL();
+    void DoCancel();
+
+private:
+
+    /**
+     * C++ default constructor.
+     */
+    CPIMImageScaler();
+
+    /**
+     * Second phase constructor
+     */
+    void ConstructL();
+
+    /**
+     * Completes the operation
+     * @param aError Error status or KErrNone if no error
+     */
+    void Complete(TInt aError);
+
+    /**
+     * Checks the given size. If the size is larger than required,
+     * returns true
+     */
+    TBool CheckSize(TSize aSize);
+
+    /**
+     * Encodes the image
+     */
+    void Encode();
+
+private: // Data
+
+    // Opens JPEG images from a descriptor, owned
+    CImageDecoder* iImageReader;
+
+    // Converts bitmap to a JPEG image, owned
+    CImageEncoder* iImageWriter;
+
+    // Scales bitmaps,owned
+    CBitmapScaler* iBitmapScaler;
+
+    // Holds the encoded image. Owned while processing the image
+    // when the image is returned, this pointer is changed to NULL.
+    HBufC8* iImage;
+
+    // Holds the bitmap. Owned.
+    CFbsBitmap* iBitmap;
+
+    // Waits for the operation to complete. Owned.
+    CActiveSchedulerWait* iWait;
+
+    // Current state
+    TState iState;
+
+    // Error code, propagated upwards on error
+    TInt iError;
+
+    // Do we have a connection to Font and Bitmap Server
+    TBool iFbsSessionConnected;
+
+    RFs iFileServer;
+
+};
+
+#endif // CPIMIMAGESCALER_H
+// End of File