/*******************************************************************************

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

 * All rights reserved. This program and the accompanying materials

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

 * which accompanies this distribution, and is available at

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

 *

 * Contributors:

 *     Nokia Corporation - S60 implementation

 *******************************************************************************/

#ifndef SWTROTATEIMAGE_H

#define SWTROTATEIMAGE_H

#include <e32base.h>

class MSwtControl;

class CBitmapRotator;

class CFbsBitmap;

/**

 * CAORotateImage

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

 * on several images. Used in CSwtSlider and CSwtProgressBar.

 * @lib eswt.dll

 */

NONSHARABLE_CLASS(CAORotateImage)

        : public CActive

{

public:

    /**

     * The 1st and 2nd phase constructor wrapper.

     */

    static CAORotateImage* NewL();

private:

    /**

     * Contructor.

     */

    CAORotateImage();

    /**

     * Second phase constructor

     */

    void ConstructL();

public:

    /**

     * Destructor.

     */

    ~CAORotateImage();

    /**

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

     */

    void RemoveAllImages();

    /**

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

     */

    /**

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

    */

    /**

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

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

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

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

    * end of the rotation.

    */

    void SetRedrawAfterRotation(TBool aRedrawAfterRotation);

    /**

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

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

    * See SetRedrawAfterRotation() method.

    */

    void Start(MSwtControl* aControl = NULL);

    /**

    * Indicate if the rotation of all images id finish.

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

    */

    TBool IsFinish() const;

protected:

    void DoCancel();

    void RunL();

    void Queue();

private:

    /**

     * Indicate the step in the rotation process.

     */

    TInt iStep;

    /**

     * Indicate if the rotation process is finish.

     */

    TBool iIsFinish;

    /**

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

     */

    TBool iRedraw;

    /**

     * The Control will can be redraw after the rotation.

     */

    MSwtControl* iControl;

    /**

     * ASP for the image rotation.

     */

    CBitmapRotator* iBitmapRotator;

    /**

     * Contains the images will should be rotate.

     */

    RArray<CFbsBitmap*> iImages;

};

#endif // SWTROTATEIMAGE_H