/*

* Copyright (c) 2006-2008 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:  Button for touch pane.

*

*/

#ifndef BMTOUCHPANEBUTTON_H_

#define BMTOUCHPANEBUTTON_H_

#include <aknbutton.h>

class MBubbleTouchPaneIconProvider;

/**

 *  Contains touch button data.

 *  

 *  @code

 *   CBubbleTouchPaneButton* button = CBubbleTouchPaneButton::NewL( 

 *                                     iIconProvider);

 *   CleanupStack::PushL( button );

 *   button->ConstructFromResouceL( reader ); 

 *       

 *   CleanupStack::Pop( button );

 *   CleanupStack::PopAndDestroy(); // reader

 *       

 *   button->SetContainerWindowL( *this );

 *   button->SetObserver( this );    

 *   button->ActivateL();

 *  @endcode

 *

 *  @lib bubblemanager.lib

 *  @since S60 S60 v5.0

 */

NONSHARABLE_CLASS( CBubbleTouchPaneButton ) : public CAknButton

    {

    public:

        /**

         * Two-phased constructor.

         * @param aIconProvider the pointer to the icon provider

         * @param aFlags The flags for the button

         */

        static CBubbleTouchPaneButton* NewL

                    ( MBubbleTouchPaneIconProvider* aIconProvider,

                      const TInt aFlags = 0 ); 

        /**

        * Destructor.

        */

        ~CBubbleTouchPaneButton();

    public:

        /**

         * Returns command id of the button

         *

         * @since S60 ?S60_version

         * @param aPreviousState ?description

         */

        TInt CommandId( TBool aPreviousState = EFalse ) const;

        /**

         * Checks does the button has the given command. 

         *

         * @since S60 v5.0

         * @param aCommand the command 

         * @return The ETrue if command can be found from iCommands array

         */

        TBool HasState( TInt aCommand ) const;

        /**

         * Constructs controls from a resource file.

         *

         * @param aReader The resource reader, with which to access the 

         *      control's resource values.

         */      

        void ConstructFromResouceL( TResourceReader& aReader );

        /**

         * Sets the current state of the button.

         *

         * @since S60 v5.0

         * @param aCommand the command

         * @param aDrawNow ETrue to redraw the button.

         */

        void SetState( TInt aCommand, TBool aDrawNow );

        /**

         * Sets button dimmed.

         *

         * @since S60 v5.0

         * @param ?arg1 ?description

         */

        void SetDimmed( TBool aDimmed );

        /**

         * Handles a change to the control's resources.

         *

         * @param aType is a message UID value.

         */

        void HandleResourceChange( TInt aType );

        /**

         * Sets layout text and icon rectanble of the button. 

         *

         * @param aLayoutText the layout text

         * @param aIconRect the rectangle of the button

         */

        void SetLayout( const TAknLayoutText aLayoutText,

                        const TRect aIconRect);

        /**

         * Sets correct graphics frame for button. 

         *

         * @param frameId the button which is pressed

         */

         TAknsItemID SelectPressedButton( TAknsItemID frameId )const; 

        /**

         * Sets correct graphics frame for button. 

         *

         * @param frameId the button which is dimmed

         */

         TAknsItemID SelectDimmedButton( TAknsItemID frameId )const; 

    protected:

        /**

         * C++ constructor for the one state button.

         *

         * @param aIconProvider the pointer to the icon provider

         * @param aFlags The flags for the button

         */

        CBubbleTouchPaneButton( 

                   MBubbleTouchPaneIconProvider* aIconProvider,

                   const TInt aFlags );

    protected: 

        //from base class CCoeControl

        /**

         * From CCoeControl. 

         * Draws the control. Called by window server.

        */

        void Draw(const TRect& aRect) const;

    private:

        /**

         * Symbian 2nd phase constructor.

         */

        void ConstructL();

        /**

         * Loads icons using the given icon provider

         * 

         * @param aIconProvider the icon provider

         */

        void LoadCustomIcons( MBubbleTouchPaneIconProvider& aIconProvider );

        /**

         * Draw text and icon according to the layout.

         * 

         * @param aGc the window graphics context

         */ 

        void LayoutIconAndText( CWindowGc& aGc ) const;

        /**

         * Gets the correct text color.

         * 

         * @param aPenColor the RGB colour value

         */

        void GetTextColors( TRgb& aPenColor ) const; 

        /**

         * Selects the correct text color.

         */

        void SelectTextColor(); 

    private: // data

        /**

         * Array of the button commands.

         */

        RArray<TInt> iCommands;

        /**

         * Touch pane icon provider.

         * Not own.

         */

        MBubbleTouchPaneIconProvider* iIconProvider;

        /**

         * Layout text

         */

        TAknLayoutText iLayoutText;

        /**

         * Rectangle of the icon of the button.

         */

        TRect iIconRect;

    };

#endif /*BMTOUCHPANEBUTTON_H_*/