/*==LICENSE==*

CyanWorlds.com Engine - MMOG client, server and tools
Copyright (C) 2011 Cyan Worlds, Inc.

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.

Additional permissions under GNU GPL version 3 section 7

If you modify this Program, or any covered work, by linking or
combining it with any of RAD Game Tools Bink SDK, Autodesk 3ds Max SDK,
NVIDIA PhysX SDK, Microsoft DirectX SDK, OpenSSL library, Independent
JPEG Group JPEG library, Microsoft Windows Media SDK, or Apple QuickTime SDK
(or a modified version of those libraries),
containing parts covered by the terms of the Bink SDK EULA, 3ds Max EULA,
PhysX SDK EULA, DirectX SDK EULA, OpenSSL and SSLeay licenses, IJG
JPEG Library README, Windows Media SDK EULA, or QuickTime SDK EULA, the
licensors of this Program grant you additional
permission to convey the resulting work. Corresponding Source for a
non-source form of such a combination shall include the source code for
the parts of OpenSSL and IJG JPEG Library used as well as that of the covered
work.

You can contact Cyan Worlds, Inc. by email legal@cyan.com
 or by snail mail at:
      Cyan Worlds, Inc.
      14617 N Newport Hwy
      Mead, WA   99021

*==LICENSE==*/
//////////////////////////////////////////////////////////////////////////////
//																			//
//	pfGUIListElement Header													//
//																			//
//////////////////////////////////////////////////////////////////////////////

#ifndef _pfGUIListElement_h
#define _pfGUIListElement_h

#include "pfGUIControlMod.h"

class plDynamicTextMap;

class pfGUISkin;
class pfGUIListElement
{
	protected:

		hsBool		fSelected;
		const UInt8	fType;

		hsBool		fCollapsed;		// For tree view support
		UInt8		fIndentLevel;	// Ditto

		pfGUIColorScheme	*fColors;
		pfGUISkin			*fSkin;

	public:

		enum Types
		{
			kText,
			kPicture,
			kTreeRoot
		};

		pfGUIListElement( UInt8 type ) : fType( type ), fSelected( false ), fCollapsed( false ), fIndentLevel( 0 ) {}
		virtual ~pfGUIListElement() {}
		
		virtual void	Read( hsStream *s, hsResMgr *mgr );
		virtual void	Write( hsStream *s, hsResMgr *mgr );

		virtual hsBool	Draw( plDynamicTextMap *textGen, UInt16 x, UInt16 y, UInt16 maxWidth, UInt16 maxHeight ) = 0;
		virtual void	GetSize( plDynamicTextMap *textGen, UInt16 *width, UInt16 *height ) = 0;
		virtual int		CompareTo( pfGUIListElement *rightSide ) = 0;

		virtual void	SetSelected( hsBool sel ) { fSelected = sel; }
		virtual hsBool	IsSelected( void ) { return fSelected; }

		virtual hsBool	CanBeDragged( void ) { return false; }

		// Return true here if you need the list refreshed
		virtual hsBool	MouseClicked( UInt16 localX, UInt16 localY ) { return false; }

		UInt8	GetType( void ) { return fType; }

		void	SetColorScheme( pfGUIColorScheme *scheme ) { fColors = scheme; }
		void	SetSkin( pfGUISkin *skin ) { fSkin = skin; }

		hsBool			IsCollapsed( void ) const { return fCollapsed; }
		virtual void	SetCollapsed( hsBool c ) { fCollapsed = c; }

		UInt8	GetIndentLevel( void ) const { return fIndentLevel; }
		void	SetIndentLevel( UInt8 i ) { fIndentLevel = i; }
};

class pfGUIListText : public pfGUIListElement
{
	public:
		// these enums should at least agree with the plDynamicTextMap's version of the Justify types
		enum JustifyTypes
		{
			kLeftJustify = 0,
			kCenter,
			kRightJustify
		};

	protected:
		
		wchar_t			*fText;
		UInt8			fJustify;	// This is not our JustifyTypes, but from plDynamicTextMap

	public:

		pfGUIListText();
		pfGUIListText( const char *text );
		pfGUIListText( const wchar_t *text );
		virtual ~pfGUIListText(); 
		
		virtual void	Read( hsStream *s, hsResMgr *mgr );
		virtual void	Write( hsStream *s, hsResMgr *mgr );

		virtual hsBool	Draw( plDynamicTextMap *textGen, UInt16 x, UInt16 y, UInt16 maxWidth, UInt16 maxHeight );
		virtual void	GetSize( plDynamicTextMap *textGen, UInt16 *width, UInt16 *height );
		virtual int		CompareTo( pfGUIListElement *rightSide );

		virtual hsBool	CanBeDragged( void ) { return true; }
		virtual void	SetJustify( JustifyTypes justify );

		// These two are virtual so we can derive and override them
		virtual const wchar_t	*GetText( void ) { return fText; }
		virtual void		SetText( const char *text );
		virtual void		SetText( const wchar_t *text );
};

class pfGUIListPicture : public pfGUIListElement
{
	protected:

		plKey	fMipmapKey;
		UInt8	fBorderSize;	// Defaults to 2
		hsBool	fRespectAlpha;

	public:

		pfGUIListPicture();
		pfGUIListPicture( plKey mipKey, hsBool respectAlpha );
		virtual ~pfGUIListPicture(); 
		
		virtual void	Read( hsStream *s, hsResMgr *mgr );
		virtual void	Write( hsStream *s, hsResMgr *mgr );

		virtual hsBool	Draw( plDynamicTextMap *textGen, UInt16 x, UInt16 y, UInt16 maxWidth, UInt16 maxHeight );
		virtual void	GetSize( plDynamicTextMap *textGen, UInt16 *width, UInt16 *height );
		virtual int		CompareTo( pfGUIListElement *rightSide );

		virtual hsBool	CanBeDragged( void ) { return false; }

		void	SetBorderSize( UInt32 size ) { fBorderSize = (UInt8)size; }
		void	SetRespectAlpha( hsBool r ) { fRespectAlpha = r; }

};

class pfGUIListTreeRoot : public pfGUIListElement
{
	protected:
		
		wchar_t			*fText;
		hsBool			fShowChildren;

		hsTArray<pfGUIListElement *>	fChildren;

	public:

		pfGUIListTreeRoot();
		pfGUIListTreeRoot( const char *text );
		pfGUIListTreeRoot( const wchar_t *text );
		virtual ~pfGUIListTreeRoot(); 
		
		virtual void	Read( hsStream *s, hsResMgr *mgr );
		virtual void	Write( hsStream *s, hsResMgr *mgr );

		virtual hsBool	Draw( plDynamicTextMap *textGen, UInt16 x, UInt16 y, UInt16 maxWidth, UInt16 maxHeight );
		virtual void	GetSize( plDynamicTextMap *textGen, UInt16 *width, UInt16 *height );
		virtual int		CompareTo( pfGUIListElement *rightSide );

		virtual hsBool	MouseClicked( UInt16 localX, UInt16 localY );

		const wchar_t	*GetTitle( void ) { return fText; }
		void		SetTitle( const char *text );
		void		SetTitle( const wchar_t *text );

		UInt32				GetNumChildren( void ) const { return fChildren.GetCount(); }
		pfGUIListElement	*GetChild( UInt32 i ) const { return fChildren[ i ]; }
		
		void		AddChild( pfGUIListElement *el );
		void		RemoveChild( UInt32 idx );

		virtual void	SetCollapsed( hsBool c );

		void		ShowChildren( hsBool s );
		hsBool		IsShowingChildren( void ) const { return fShowChildren; }
};

//// pfGUIDropTargetProc /////////////////////////////////////////////////////
//	A little proc object you create if you want a control to be a potential
//	target for drag & drop operations. It has two functions: one takes a 
//	listElement and returns whether it can accept that type, and the other
//	actually gets called when a listElement is "dropped" onto the associated
//	control. Any control can be a dropTarget; just attach the right proc
//	to it!
//	If you are dragging multiple elements, both CanEat() and Eat() will get
//	called for each element that is being dragged.

class pfGUIDropTargetProc 
{
	protected:

		UInt32		fRefCnt;

	public:

		pfGUIDropTargetProc() { fRefCnt = 0; }

		virtual hsBool	CanEat( pfGUIListElement *element, pfGUIControlMod *source ) = 0;
		virtual void	Eat( pfGUIListElement *element, pfGUIControlMod *source, pfGUIControlMod *parent ) = 0;

		// ONLY THE GUI SYSTEM SHOULD CALL THESE
		void	IncRef( void ) { fRefCnt++; }
		hsBool	DecRef( void ) { fRefCnt--; return ( fRefCnt > 0 ) ? false : true; }
};

#endif // _pfGUIListElement_h