/*

* Copyright (c) 1997-1999 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the License "Symbian Foundation License v1.0" to Symbian Foundation members and "Symbian Foundation End User License Agreement v1.0" to non-members

* which accompanies this distribution, and is available

* at the URL "http://www.symbianfoundation.org/legal/licencesv10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:

*

*/

#if !defined(__EIKCTGRP_H__)

#define __EIKCTGRP_H__

#if !defined(__EIKBCTRL_H__)

#include <eikbctrl.h>

#endif

#include <lafpublc.h>

class TEikGroupControl

	{

public:

	/** Constructor

	 */

	inline TEikGroupControl();

    /** Constructor

     */

	inline TEikGroupControl(CCoeControl* aControl,TInt aId,TInt aLength,TInt aFlags);

public:

	CCoeControl* iControl;

	TInt iId;

	TInt iLongId;

public:

	/** IsLengthSet() whether length has been set

	 */

	inline TBool IsLengthSet() const;

    /** Length() returns value of the length

     */

	inline TInt Length() const;

    /** IsStretchable() whether controlgroup is stretchable

     */

	inline TBool IsStretchable() const;

    /** SetLength() sets the length

     */

	inline void SetLength(TInt aLength);

    /** SetStretchable() sets to be stretchable

     */

	inline void SetStretchable();

public:

	enum TControlFlags

		{

		ESetLength		=0x01,

		EAllowStretch	=0x02

		};

private:

	TInt iLength;

	TInt iFlags;

	};

class CEikControlGroup : public CEikBorderedControl

	{

friend class CTestControlGroup; // test code

// CEikCba made a friend to get at Orientation() private method

friend class CEikCba;

// -> 

public:

	enum TStartCorner

		{

		EFromTopLeft=SLafControlGroup::EFromTopLeft,

		EFromTopRight=SLafControlGroup::EFromTopRight,

		EFromBottomLeft=SLafControlGroup::EFromBottomLeft,

		EFromBottomRight=SLafControlGroup::EFromBottomRight

		};

	enum TOrientation

		{

		ELayHorizontally=SLafControlGroup::ELayHorizontally,

		ELayVertically	=SLafControlGroup::ELayVertically	

		};

public: // new functions

	/** Constructor

	 */

	IMPORT_C CEikControlGroup();

    /** Destructor

     */

	IMPORT_C ~CEikControlGroup();

    /** ConstructL() constructs the CEikControlGroup

     * @param aStart corner to start

     * @param aOrientation whether controlgroup is vertical or horizontal

     */

	IMPORT_C void ConstructL(TStartCorner aStart,TOrientation aOrientation);

	/** AddControlL() adds a new control to the controlgroup

	 * @param aControl control to be added

	 * @param aId id of the control

	 */

	IMPORT_C virtual void AddControlL(CCoeControl* aControl,TInt aId);

	/** AddControlL() adds new control to the controlgroup

     * @param aControlGroup a control and it's id packed into TEikGroupControl struct

	 */

	IMPORT_C virtual void AddControlL(TEikGroupControl& aGroupControl);

    /** InsertControlL() inserts a control to specific position

     * @param aGroupControl control and its id packed to a struct

     * @param aIndex index of the array where new control is to be inserted

     */

	IMPORT_C void InsertControlL(TEikGroupControl& aGroupControl,TInt aIndex);

    /** DeleteControl() removes control from the group

     * @param aIndex at which position of the array to delete

     * @param aCount how many controls to delete

     */

	IMPORT_C void DeleteControl(TInt aIndex,TInt aCount);

    /** SetLengthInPixels() sets length of the control group in pixels

     * @param aLength length of the whole control group in pixels

     */

	IMPORT_C void SetLengthInPixels(TInt aLength);

    /** SetBreadthInPixels() sets width of the control group

     * @param aBreadth width of the control group

     */

	IMPORT_C void SetBreadthInPixels(TInt aBreadth);

    /** SetControlSpacing sets horizontal and vertical spacing

     * @param aHSpacing horizontal spacing between controls

     * @param aVSpacing vertical spacing between controls

     */

	IMPORT_C void SetControlSpacing(TInt aHSpacing,TInt aVSpacing);

    /** SetControlLayout sets control layout parameters

     * @param aStart start corner

     * @param aOrientation vertical or horizontal orientation

     */

	IMPORT_C void SetControlLayout(TStartCorner aStart,TOrientation aOrientation);

    /** SetNumberOfLines() sets number of lines of the control group

     * @param aNumLines number of lines

     * @param aDistributeEvenly whether controls distribute evenly to the group

     */

	IMPORT_C void SetNumberOfLines(TInt aNumLines,TBool aDistributeEvenly);

    /** SetControlsAllSameSize() sets all controls to be the same size

     */

	IMPORT_C void SetControlsAllSameSize();

    /** LayoutControls layouts the controls

     */

	IMPORT_C void LayoutControls();

    /** ControlById() fetches individual controls by id

     * @param aId id of the control

     */

	IMPORT_C CCoeControl* ControlById(TInt aId) const;

    /** IndexById() gets array index from id

     * @param aId id number of the control

     * @return index number to the array

     */

	IMPORT_C TInt IndexById(TInt aId) const;

    /** Reset() clears the control array

     */

	IMPORT_C void Reset();

    /** ControlId() finds id of the control based on CCoeCOntrol pointer

     * @param aControl control stored in a control group

     * @return id of the control

     */

	IMPORT_C TInt ControlId(CCoeControl* aControl) const;

    /** Control() returns CCoeControl pointer based on array index

     * @param aIndex index to the internal array

     * @return control in that position of the array

     */

	IMPORT_C CCoeControl* Control(TInt aIndex) const; // as requested by Bill

    /** ControlArray() access to the actual array representation

     * @return array

     */

	IMPORT_C CArrayFix<TEikGroupControl>* ControlArray() const;

    /** Orientation orientation of the control group

     * @return either horizontal or vertical orientation

     */

	IMPORT_C TOrientation Orientation() const;

	/** ControlSpacing() gets control's spacing

	 * @aHSpacing modifies variable to get horizontal spacing

	 * @aVSpacing modifies variable to get vertical spacing

     */

 	IMPORT_C void ControlSpacing(TInt& aHSpacing,TInt& aVSpacing) const;

public: // from CCoeControl

	/** MinimumSize() gets minimumsize

	 */

	IMPORT_C TSize MinimumSize();

    /** CountComponentControls returns component controls count

     */

    IMPORT_C TInt CountComponentControls() const;

    /** GetColorUseListL() sets the color use list of the control group

     */

	IMPORT_C virtual void GetColorUseListL(CArrayFix<TCoeColorUse>& aColorUseList) const; // not available before Release 005u

    /** HandleResourceChange() handles resource change event

     */

	IMPORT_C virtual void HandleResourceChange(TInt aType);			// not available before Release 005u

    /** HandlePointerEventL() handles touch pointer events

     */

    IMPORT_C void HandlePointerEventL(const TPointerEvent& aPointerEvent);

protected:

	enum

		{

		EDistributeEvenly	=0x40,

		EAllSameSize		=0x80,

		EDisableMSKDrawing  =0x100

		};

protected: // from CCoeControl

    IMPORT_C CCoeControl* ComponentControl(TInt aIndex) const;

	IMPORT_C void WriteInternalStateL(RWriteStream& aWriteStream) const;

	// only used from CEikCba

	void SetMSKVisibility(TBool aEnable);

private: // from CCoeControl

	IMPORT_C void Reserved_2();

private:

    /**

    * From CAknControl

    */

    IMPORT_C void* ExtensionInterface( TUid aInterface );

private: // new functions

	IMPORT_C TInt Adjacent(TInt aRow,TInt aColumn,TInt aCtrlIndex,TInt aTotalRows,TInt aTotalColumns) const;

	IMPORT_C TStartCorner StartCorner() const;

	IMPORT_C void DeleteAllComponents();

	IMPORT_C TSize ControlMinimumSize(TInt aIndex) const;

	IMPORT_C TInt ControlMinimumLength(TInt aIndex);

	IMPORT_C TSize LargestControlSize() const;

	IMPORT_C TBool DistributeEvenly() const;

	IMPORT_C TBool AllSameSize();

private: // from CCoeControl

    IMPORT_C void SizeChanged();

	IMPORT_C void Draw(const TRect& aRect) const;

protected:

	CArrayFix<TEikGroupControl>* iControlArray;

private:

	TInt iLayout;

	TInt iLines;

	TInt iHSpacing;

	TInt iVSpacing;

	TInt iBreadth;

	TInt iLength;

	TSize iLargestControl;

	};

inline TEikGroupControl::TEikGroupControl()

	{ iControl=NULL; iId=iFlags=iLength=0; }

inline TEikGroupControl::TEikGroupControl(CCoeControl* aControl,TInt aId,TInt aLength,TInt aFlags)

	: iControl(aControl),iId(aId),iLength(aLength),iFlags(aFlags)

	{}

inline TBool TEikGroupControl::IsLengthSet() const

	{ return iFlags&ESetLength; }

inline TInt TEikGroupControl::Length() const

	{ return iLength; }

inline TBool TEikGroupControl::IsStretchable() const

	{ return iFlags&EAllowStretch; }

inline void TEikGroupControl::SetLength(TInt aLength)

	{ iLength=aLength; iFlags|=ESetLength; }

inline void TEikGroupControl::SetStretchable()

	{ iFlags|=EAllowStretch; }

#endif