/*

* Copyright (c) 2005-2006 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:  header file of button and dragbar

*

*/

#ifndef C_CBUTTONBASE_H

#define C_CBUTTONBASE_H

#include <peninputlayoutbasecontrol.h>

/**

 *  CButtonBase

 *

 *  Button base control. This class could be used directly by user.

 *

 *  @lib peninputlayoutcontrol.lib

 *  @since S60 V4.0

 */

class CButtonBase: public CFepUiBaseCtrl

    {

public: 

    //constructor and destructor

    /**

     * Destructor.        

     *

     * @since S60 V4.0        

     */                  

    IMPORT_C virtual ~CButtonBase();

    /**

     * Factory function.        

     *

     * @since S60 V4.0        

     * @param aRect The rectangle area for this control

     * @param aUiLayout Ui layout who contains this control.Ownership not transferred

     * @param aControlId control Id

     * @return An instance of CButtonBase class        

     */                               

    IMPORT_C static CButtonBase* NewL(const TRect& aRect,CFepUiLayout* aUiLayout,TInt aControlId);

    /**

     * Set button active or deactive.        

     *

     * @since S60 V4.0        

     * @param aFlag Button status flag.

     */                                       

    IMPORT_C void SetActive(TBool aFlag);

    /**

     * Set button dimmed.        

     *

     * @since S60 V4.0        

     * @param aFlag Dim status. Default value is ETrue.

     */                                      

    IMPORT_C void SetDimmed(TBool aFlag);           

    /**

     * Set bitmap for given status .        

     *

     * @since S60 V4.0        

     * @param aBmp The bitmap. Ownership transferred to button

     * @param aType The bitmap type used for

     */                                 

    IMPORT_C void SetBitmapL(CFbsBitmap* aBmp, TButtonBmpType aType);

    /**

     * Set mask bitmap for given status.        

     *

     * @since S60 V4.0        

     * @param aBmp The bitmap. Ownership transferred to button

     * @param aType The bitmap type used for

     */                                 

    IMPORT_C void SetMaskBitmapL(CFbsBitmap* aBmp, TButtonBmpType aType);

    /**

     * get bitmap for given type . 

     *

     * @since S60 V4.0        

     * @param aType The bitmap type used for

     * @param aMaskFlag EFalse if want to get the mask bitmap, otherwise, 

     *          return the bitmap. Default value is EFalse.

     * @return The bitmap

     */                                 

    IMPORT_C CFbsBitmap* Bitmap(TButtonBmpType aType,TBool aMaskFlag = EFalse);

    /**

     * Set caption.        

     *

     * @since S60 V4.0        

     * @param aText The button caption

     */                                 

    IMPORT_C void SetCaptionL(const TDesC& aText);

    /**

     * Get button dimmed status .

     *

     * @since S60 V4.0        

     * @return Button dimmed status

     */                                                                      

    inline TBool IsDimmed();

    /**

     * Enable bitmap stretchable. When it's set, all bitmap in this control

     * will be stretched to fit in the control. It's stretchable by default

     *

     * @since S60 V4.0

     * @param aFlag the bitmap stretching flag

     */

    inline void SetBmpStretchable(TBool aFlag = ETrue);

    /**

     * Get bitmap stretchable flag

     *

     * @since S60 V4.0

     * @return aFlag the bitmap stretching flag

     */

    inline TBool BmpStretchable();

    //from base class CFepUiBaseCtrl

    /**

     * From CFepUiBaseCtrl

     * Draw control

     *

     * @since S60 V4.0

     */                               

    IMPORT_C virtual void Draw();    

    /**

     * From CFepUiBaseCtrl

     * Handle pointer levae event. 

     * This will be called only when it's got pointer down event before and 

     * now pointer leaves without pointer up event

     *

     * @since S60 V4.0

     * @param aPoint current pointer position

     */

    IMPORT_C virtual void HandlePointerLeave(const TPoint& aPoint);

    /**

     * From CFepUiBaseCtrl

     * Handle pointer enter event. 

     * This will be called only when it's got pointer down event before and 

     * pointer leaves but now comes back without pointer up event.

     *

     * @since S60 V4.0

     * @param aPoint current pointer position     

     */

    IMPORT_C virtual void HandlePointerEnter(const TPoint& aPoint);            

    /**

     * From CFepUiBaseCtrl    

     * Set control's rectangle

     *

     * @since S60 V4.0

     * @param aRect The new control area

     */                                       

    //IMPORT_C virtual void SetRect(const TRect& aRect);    

    /**

     * Hide or shoe control. A hiden control will not handle the event.

     *

     * @since S60 V4.0

     * @param aFlag ETrue if want to hide the control.

     */                                               

    //IMPORT_C virtual void Hide(TBool aFlag);

    /* Set the font for caption

     *

     * @since S60 V4.0

     * @param aFontSpec the font spec to be used.

     */                                                   

    IMPORT_C void SetFont(const TFontSpec& aFontSpec);

    /**

     * Set font information

     *

     * @since S60 V4.0          

     * @param aFont The font info for key drawing.Ownership not transferred

     */

    IMPORT_C void SetFont(const CFont* aFont);    

    /**

     * Set caption color

     *

     * @since S60 V4.0          

     * @param aCol The caption font color

     */    

    inline void SetCaptionColor(const TRgb& aCol);

    /**

     * Set font shadow color

     *

     * @since S60 V4.0          

     * @param aCol The font color

     */    

    inline void SetCaptionShadowColor(const TRgb& aCol);    

    /**

     * Reset the bitmap pool.

     *

     * @since S60 v4.0

     */

    IMPORT_C void ResetBmpPool();    

	IMPORT_C void Hide(TBool aFlag);

protected:   

    /**

     * Constructor

     *

     * @since S60 V4.0

     * @param aRect The rectangle area for this control

     * @param aUiLayout Ui layout who contains this control.Ownership not transferred

     * @param aControlId control Id

     */           

    IMPORT_C CButtonBase(const TRect& aRect,CFepUiLayout* aUiLayout,TInt aControlId);            

    /**

     * From CFepUiBaseCtrl

     * Handle pointer down event

     *

     * @since S60 V4.0

     * @param aPoint The point position relative the layout

     * @return The control which handles the event.     

     */                                        

    IMPORT_C virtual CFepUiBaseCtrl* HandlePointerDownEventL(const TPoint& aPoint);

    /**

     * Handle pointer move event

     * From CFepUiBaseCtrl

     *

     * @since S60 V4.0

     * @param aPoint The point position relative the layout

     * @return The control which handles the event.     

     */                  

    IMPORT_C virtual CFepUiBaseCtrl* HandlePointerMoveEventL(const TPoint& aPoint);

    /**

     * From CFepUiBaseCtrl

     * Handle pointer up event

     *

     * @since S60 V4.0

     * @param aPoint The point position relative the layout

 	 * @return The control which handles the event

     */                  

    IMPORT_C virtual CFepUiBaseCtrl* HandlePointerUpEventL(const TPoint& aPoint);

    /**

     * Set background bitmap

     *

     * @since S60 V4.0

     * @param aBmp The background bitmap. Ownership transferred to control

     */

    IMPORT_C virtual void SetBackgroundBitmapL(CFbsBitmap* aBmp);

    /**

     * Set background mask bitmap

     *

     * @since S60 V4.0

     * @param aBmp The background bitmap. Ownership transferred to control

     */

    IMPORT_C virtual void SetBackgroundMaskBitmapL(CFbsBitmap* aBmp);

private:

    /**

     * Add a bitmap to bitmap pool

     *

     * @since S60 V4.0

     * @param aBmp The  bitmap to be added

     */ 

    void AddBmpToPool(CFbsBitmap* aBmp);

protected:

    /**

     * bitmap for active state

     * Own.

     */

    CFbsBitmap* iActiveBmp; 

    /**

     * bitmap for pressing in active state

     * Own.

     */

    CFbsBitmap* iActiveBmpPressed; 

    /**

     * bitmap for non active state

     * Own.

     */

    CFbsBitmap* iNonActiveBkBmp;    

    /**

     * bitmap for pressing in non active state

     * Own.

     */

    CFbsBitmap* iNonActiveBkBmpPressed;

    /**

     * mask bitmap for active state

     * Own.

     */

    CFbsBitmap* iActiveMaskBmp;

    /**

     * mask bitmap for pressing in active state

     * Own.

     */

    CFbsBitmap* iActiveMaskBmpPressed; 

    /**

     * mask bitmap for non active state

     * Own.

     */

    CFbsBitmap* iNonActiveBkMaskBmp; 

    /**

     * mask bitmap for pressing in non active state

     * Own.

     */

    CFbsBitmap* iNonActiveBkMaskBmpPressed; 

private:    

    /**

     * Button pressed status

     */

    TBool iPressed;    

    /**

     * Button dim status

     */

    TBool iDimmed;

    /**

     * Bitmap stretchable flag

     */ 

    TBool iStretchable;

    /**

     * bitmap for dimmed state

     * Own.

     */

    CFbsBitmap* iDimmedBmp;   

    /**

     * mask bitmap for dim stute

     * Own.

     */

    CFbsBitmap* iDimmedMaskBmp;

    /**

     * Button caption

     */

    HBufC* iCaption;

    /**

     * Font object for key drawing

     * Ownership depends on flag iFontOwnership.

     */          

    CFont* iFont;

    /**

     * Font information for key drawing

     */     

    TFontSpec iFontSpec;

    /**

     *  Flag ownership flag. ETrue if CFont object is owned by this control.

     */

    TBool iFontOwnership;    

    /**

     * Baseline for caption

     */

    TInt iBaseline;

    /**

     * Pen color for first level caption

     */     

    TRgb iCaptionColor;

    /**

     * Pen color for caption shadow

     */     

    TRgb iCaptionShadowColor;

    /**

     * bitmap pool for all bitmaps.

     */

    RPointerArray<CFbsBitmap> iBmpPool;

    /**

     * keep the bitmap for background bitmap set by SetBackgroundBitmapL in case someone used.

     * Own.

     */

    CFbsBitmap* iNoUsedBkbmp;

    /**

     * keep the bitmap for mask background bitmap set by SetBackgroundMaskBitmapL in case someone used.

     * Own.

     */

    CFbsBitmap* iNoUsedMaskBkbmp;

    /**

     * Reserved item1

     */

     TInt iReserved1;

    /**

     * Reserved item2

     */

     TInt iReserved2;

    };

/**

 *  CDragBar

 *

 *  Drag bar

 *

 *  @lib peninputlayoutcontrol.lib

 *  @since S60 V4.0

 */

class CDragBar: public CButtonBase,public MTimerHandler,public MEventObserver

    {

public:

    /**

     * Factory function

     *

     * @since S60 V4.0

     * @param aRect The rectangle area for this control

     * @param aUiLayout Ui layout who contains this control.Ownership not transferred

     * @param aControlId control Id

     * @return The class instance 

     */               

    IMPORT_C static CDragBar* NewL(const TRect& aRect,CFepUiLayout* aUiLayout,TInt aControlId);

    /**

     * Destructor

     *

     * @since S60 V4.0

     */

    IMPORT_C virtual ~CDragBar();

    /**

     * Add position observer. When drag bar moved, the observer will get notified.

     *

     * @since S60 V4.0        

     * @param aObserver The event observer

     */                                                              

    IMPORT_C void AddPositionObserver(MPositionObserver* aObserver);        

    /**

     * Remove position observer. 

     *

     * @since S60 V4.0        

     * @param aObserver The event observer to be removed

     */                                                              

    IMPORT_C void RemovePositionObserver(MPositionObserver* aObserver);        

    /**

     * Set the long press time out. 

     *

     * @since S60 V4.0        

     * @param aTime The long press event time out interval

     */                                                              

    IMPORT_C void SetLongpressTimer(TTimeIntervalMicroSeconds32 aTime);        

    /**

     * Check a control is the position observer of the dragbar 

     *

     * @since S60 V4.0

     * @param aControl The control to be checked

     * @return ETrue if the control is position observer of the dragbar

     */                

    IMPORT_C TBool IsDraggingComponent(CFepUiBaseCtrl* aControl);

    /**

     * Get dragging status.        

     *

     * @since S60 V4.0        

     * @param None

     * @return ETrue if is dragging, otherwise EFalse

     */                                                      

    inline TBool IsDragging();        

    /**

     * Set the moving draw interval. 

     *

     * @since S60 V4.0        

     * @param aTime The drawing interval while moving

     */    

    inline void SetRedrawInterval(TTimeIntervalMicroSeconds32 aTime);        

    /**

     * Enable/disable dragging feature. 

     * Dragging is enabled by default when created.

     *

     * @since S60 V4.0        

     * @param aFlag dragging flag. Default value is ETrue

     */                                                              

    inline void EnableDragging(TBool aFlag = ETrue);                

    /**

     * Set bitmap for given status .        

     *

     * @since S60 V4.0        

     * @param aBmp The bitmap. Ownership transferred to dragbar

     * @param The type of the bitmap

     */                                 

    IMPORT_C void SetBitmapL(CFbsBitmap* aBmp, TButtonBmpType aType);

    /**

     * Set mask bitmap for given status . 

     *

     * @since S60 V4.0