/*

* Copyright (c) 2002 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:  The Function-Map's button class, CCalcCommandButton

*                Derived from CEikCommandButtonBase

*                The CCalcCommandButton is flat button.

*                In making disable, it calls SetDimmed() function.

*

*/

#ifndef     CALCCMDBTN_H

#define     CALCCMDBTN_H

#include <coecntrl.h>

#include <aknutils.h>

//  CLASS DEFINITIONS 

class CCalcFuncmapSubPane;

/**

CCalcCommandButton : The button class for FunctionMap of a calculator

*/

class CCalcCommandButton 

      : public CCoeControl

    {

    public:

        enum TState  // Button state for bitmap.

            {

            ENormal,    // Button is normal.

            EPressed,   // Button is pushed.

            EDimmed     // Button is dimmed.

            };

    public: // Constructors and destructor 

        /**

        * Two-phased constructor.

        * @param aFuncmapSubPane : CCalcFuncmapSubPane pointer 

        * @param aUnpressedBmp : Bitmap for unpressed button

        * @param aPressedBmp : Bitmap for pressed button

        * @param aInactiveBmp : Bitmap for inactive button

        */

        static CCalcCommandButton* NewL(

            CCalcFuncmapSubPane* aFuncmapSubPane,

            const CGulIcon* aUnpressedBmp,

            const CGulIcon* aPressedBmp,

            const CGulIcon* aInactiveBmp); 

        /**

        * Destructor.

        */

        virtual ~CCalcCommandButton();

    public: // New functions

        /**

        * Button state is set and re-draw.

        * @param aState : State of a button (ENormal || EPressed || ESelected)

        */

        void SetStateAndRedraw(const TState& aState);

        /**

        * Set flag which button is selected or not, and redraw.

        * @param aIsSelected : Button is selected or not.

        */

        void SetIsSelectedAndRedraw(TBool aIsSelected);

        /**

        * Return Current state of a button.

        * @return Current state of a button (ENormal || EPressed || ESelected)

        */

        TState State() const;

		/**

		 *Sets iUnpressedButton, iPressedButton, iInactiveButton bitmap arrays to the current bitmaps.

		 * @param aUnpressedButtonIcon: Icon for Unpressed button 

         * @param aPressedButtonIcon :  Icon for  pressed button

         * @param aInactiveButtonIcon : Icon for Inactive button        

		*/

		void SetBitmapIcons(CGulIcon* aUnpressedButtonIcon,

                    CGulIcon* aPressedButtonIcon,

                    CGulIcon* aInactiveButtonIcon);

        /**

        * Gets the button layout

        * Used for touch support.

        */

        TRect ButtonLayout();

    private: // New functions

        /**

        * C++ default constructor.

        */

        CCalcCommandButton();

        /**

        * Second-phase constructor.

        * @param aFuncmapSubPane : CCalcFuncmapSubPane pointer 

        * @param aUnpressedBmp : Bitmap for unpressed button

        * @param aPressedBmp : Bitmap for pressed button

        * @param aInactiveBmp : Bitmap for inactive button

        */

        void ConstructL(

                CCalcFuncmapSubPane* aFuncmapSubPane,

                const CGulIcon* aUnpressedBmp,

                const CGulIcon* aPressedBmp,

                const CGulIcon* aInactiveBmp); 

    private:  // Functions from base classes

        /**

        * From CCoeControl : Data of control is set.

        */

        void SizeChanged();

        /**

        * From CCoeControl : Draw a button

        * @param aRect : Size of a button

        */

        void Draw(const TRect& aRect) const;

    private:  // Data

        TState  iState;      // Current state of a button

        TBool   iIsSelected; // If Button selected TRUE

        const CGulIcon*   iUnpressedButton;   // Unpressed button bitmap

        const CGulIcon*   iPressedButton;     // Pressed button bitmap

        const CGulIcon*   iInactiveButton;    // Inactive button bitmap

        TAknLayoutRect    iLayoutRect;        // rectangle of button 

    };

#endif      //  CALCCMDBTN_H

// End of File