/*

* Copyright (c) 1998-1999 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:

*

*/

#ifndef __LAFBTPAN_H__

#define __LAFBTPAN_H__

#include <e32std.h>

#include <lafpublc.h>

#include <gulutil.h>

const TInt KLafButPanMaxLinesOfDlgButtons=5; // Change requires Uikon recompile. Must be same across all Uikon devices per Epoc release

const TInt KLafButPanNoMinButWidth=0;

/**

 * @internal

 * Do not use

 */

class LafButtonPanel

	{

public:

	class TDimensions;

public:

	IMPORT_C static TBool ButtonsAllSameSize();

	IMPORT_C static void TranslateForExcessSpace(TInt aExcess, TInt& aShiftLeft, TInt& aShiftRight);

	IMPORT_C static void ReduceMarginsToFit(

		const TFixedArray<TDimensions,KLafButPanMaxLinesOfDlgButtons>& aArray,

		TInt8& aLeftBorder, TInt8& aRightBorder, TInt& aGapBetweenButtons);

	IMPORT_C static TMargins8 Margins();

	inline static TInt DefaultStartCorner();

	inline static TInt DefaultOrientation();

	inline static TInt InterRowMargin();

	inline static TInt VerGapBetweenButtons();

	inline static TInt HorGapBetweenButtons();

	inline static TInt MinButtonWidth();

private:

	enum TConstantType

		{

		EStartCorner,

		EOrientation,

		EInterRowMargin,

		EVerticalGap,

		EHorizontalGap,

		EMinWidth

		};

private:

	IMPORT_C static TInt Constant(TConstantType aConstant);

	};

/**

 * The LafButtonPanel::TDimensions is used to pass information about a row of

 * buttons from CEikButtonPanel to LafButtonPanel.

 */

class LafButtonPanel::TDimensions

	{

public:

	TInt iNumButtons;

	TInt iExcess;

	};

/**

 * The DefaultStartCorner() function should return ELafBtPanFromTopLeft if the first button is

 * to be leftmost, or ELafBtPanFromTopRight if the first button is to be rightmost.

 */

inline TInt LafButtonPanel::DefaultStartCorner()

	{//static	

	return Constant(EStartCorner);	

	};

/**

 * The DefaultOrientation() function should return ELafBtPanLayVertically for a device allowing

 * vertical buttons, or ELafBtPanLayHorizontally for a device with only horizontal buttons.

 */

inline TInt LafButtonPanel::DefaultOrientation()

	{//static

	return Constant(EOrientation);

	};

/**

 * The InterRowMargin() function returns the size of the gap between two

 * rows of buttons.

 */

inline TInt LafButtonPanel::InterRowMargin()

	{//static

	return Constant(EInterRowMargin);

	};

/**

 * The VerGapBetweenButtons() function returns the size of the vertical gap between two

 * buttons in a vertical layout.

 */

inline TInt LafButtonPanel::VerGapBetweenButtons()

	{//static

	return Constant(EVerticalGap);

	};

/**

 * The HorGapBetweenButtons() function returns the size of the desired horizontal gap between two

 * buttons in a horizontal layout.

 */

inline TInt LafButtonPanel::HorGapBetweenButtons()

	{//static

	return Constant(EHorizontalGap);	

	};

/**

 * The MinButtonWidth() function returns the minimum size of a dialog button. If set to 

 * KLafButPanNoMinButWidth then the minimum width of the button will be used.

 */

inline TInt LafButtonPanel::MinButtonWidth()	

	{//static

	return Constant(EMinWidth);	

	};

#endif // __LAFBTPAN_H__