1 /*******************************************************************************

     2  * Copyright (c) 2007, 2010 Nokia Corporation and/or its subsidiary(-ies).

     3  * All rights reserved. This program and the accompanying materials

     4  * are made available under the terms of the Eclipse Public License v1.0

     5  * which accompanies this distribution, and is available at

     6  * http://www.eclipse.org/legal/epl-v10.html

     7  *

     8  * Contributors:

     9  *     Nokia Corporation - S60 implementation

    10  *******************************************************************************/

    11 

    12 

    13 #ifndef SWTROTATEIMAGE_H

    14 #define SWTROTATEIMAGE_H

    15 

    16 

    17 #include <e32base.h>

    18 

    19 

    20 class MSwtControl;

    21 class CBitmapRotator;

    22 class CFbsBitmap;

    23 

    24 

    25 /**

    26  * CAORotateImage

    27  * This class is an active object which make an asynchronous rotation

    28  * on several images. Used in CSwtSlider and CSwtProgressBar.

    29  * @lib eswt.dll

    30  */

    31 NONSHARABLE_CLASS(CAORotateImage)

    32         : public CActive

    33 {

    34 public:

    35     /**

    36      * The 1st and 2nd phase constructor wrapper.

    37      */

    38     static CAORotateImage* NewL();

    39 

    40 private:

    41     /**

    42      * Contructor.

    43      */

    44     CAORotateImage();

    45 

    46     /**

    47      * Second phase constructor

    48      */

    49     void ConstructL();

    50 

    51 public:

    52     /**

    53      * Destructor.

    54      */

    55     ~CAORotateImage();

    56 

    57     /**

    58      * Remove all images previously added with the AddImage() or AddImages() methods.

    59      */

    60     void RemoveAllImages();

    61 

    62     /**

    63      * Add a image which will be rotate after a call to the method Start().

    64      */

    65     void AddImage(CFbsBitmap* aImage);

    66 

    67     /**

    68     * Add images which will be rotate after a call to the method Start().

    69     */

    70     void AddImages(const RArray<CFbsBitmap*>& aImages);

    71 

    72     /**

    73     * Indicate if a redraw should be make when the rotation of all images is finih,

    74     * the redraw works only if a Control is passed to the Start() method.

    75     * @param aRedrawAfterRotation If equal ETrue so a redraw will be make

    76     * when the rotation is finish, if EFalse no redraw will be make at the

    77     * end of the rotation.

    78     */

    79     void SetRedrawAfterRotation(TBool aRedrawAfterRotation);

    80 

    81     /**

    82     * Start the rotation of all images added with the AddImage() or AddImages() methods.

    83     * @param aControl   The control which should be redraw after the images rotation.

    84     * See SetRedrawAfterRotation() method.

    85     */

    86     void Start(MSwtControl* aControl = NULL);

    87 

    88     /**

    89     * Indicate if the rotation of all images id finish.

    90     * @return Returns Etrue if the rotation is started and finish.

    91     */

    92     TBool IsFinish() const;

    93 

    94 protected:

    95     void DoCancel();

    96     void RunL();

    97     void Queue();

    98 private:

    99 

   100     /**

   101      * Indicate the step in the rotation process.

   102      */

   103     TInt iStep;

   104 

   105     /**

   106      * Indicate if the rotation process is finish.

   107      */

   108     TBool iIsFinish;

   109 

   110     /**

   111      * Indicate if a redraw should be make after the rotation.

   112      */

   113     TBool iRedraw;

   114 

   115     /**

   116      * The Control will can be redraw after the rotation.

   117      */

   118     MSwtControl* iControl;

   119 

   120     /**

   121      * ASP for the image rotation.

   122      */

   123     CBitmapRotator* iBitmapRotator;

   124 

   125     /**

   126      * Contains the images will should be rotate.

   127      */

   128     RArray<CFbsBitmap*> iImages;

   129 };

   130 

   131 

   132 #endif // SWTROTATEIMAGE_H