1 /*

     2 * Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description: 

    15 *

    16 */

    17 

    18 

    19 #ifndef __TNENGINESCALER_H__

    20 #define __TNENGINESCALER_H__

    21 

    22 

    23 #include <QObject>

    24 #include <QPixmap>

    25 

    26 namespace WRT {

    27 

    28 class MTnEngineScalerCallback : public QObject

    29 {

    30 public:

    31     virtual void scalingCompleted(QPixmap& result, const QRect& targetRect) = 0;

    32 };

    33 

    34 

    35 class TnEngineScaler : public QObject

    36 {

    37 Q_OBJECT

    38 public:

    39     static TnEngineScaler* initWithCallback(MTnEngineScalerCallback& callback);

    40     virtual ~TnEngineScaler();

    41 

    42 public: // New functions

    43     void startScaling(QPixmap& source, const QRect& targetRect);

    44     bool isActive();

    45 

    46 public slots:

    47     void run();

    48 

    49 public:

    50     void cancel();

    51 

    52 private:

    53     TnEngineScaler(MTnEngineScalerCallback& callback);

    54     void init();

    55     void deleteResultBitmap();

    56 

    57 private:    // Data

    58     MTnEngineScalerCallback* m_callback;

    59     QPixmap* m_resultBitmap;

    60     QRect m_targetRect;

    61     QTimer* m_scalingTimer;

    62 };

    63 

    64 }

    65 #endif // __TNENGINESCALER_H__

    66 

    67 // End of File