/*==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==*/
///////////////////////////////////////////////////////////////////////////////
//																			 //
//	plTextFont Class Header		    								 		 //
//	Generic 3D text font handler       										 //
//	Cyan, Inc.																 //
//																			 //
//// Version History //////////////////////////////////////////////////////////
//																			 //
//	2.19.2001 mcn - Created.												 //
//																			 //
///////////////////////////////////////////////////////////////////////////////

#ifndef _plTextFont_h
#define _plTextFont_h

#include "hsTemplates.h"
#include "hsGeometry3.h"

//// plTextFont Class Definition //////////////////////////////////////////////

class plPipeline;

class plTextFont
{
	protected:

		struct plDXCharInfo
		{
			UInt16		fW, fH;
			hsPoint3	fUVs[ 2 ];
		};

		struct plFontVertex
		{
			hsPoint3	fPoint;
			UInt32		fColor;
			hsPoint3	fUV;

			plFontVertex& operator=(const int zero)
			{
				fPoint.Set(0,0,0);
				fColor = 0;
				fUV.Set(0,0,0);

				return *this;
			}
		};

		UInt32	fMaxNumIndices;
		UInt32	fTextureWidth, fTextureHeight;

		char	fFace[ 128 ];
		UInt16	fSize;
		hsBool	fInitialized;
		UInt16	fFontHeight;
		
		plPipeline	*fPipe;

		plTextFont		*fNext;
		plTextFont		**fPrevPtr;

		plDXCharInfo	fCharInfo[ 128 ];


		virtual void	IInitObjects( void );
		virtual void	ICreateTexture( UInt16 *data ) = 0;
		virtual void	IInitStateBlocks( void ) = 0;
		virtual void	IDrawPrimitive( UInt32 count, plFontVertex *array ) = 0;
		virtual void	IDrawLines( UInt32 count, plFontVertex *array ) = 0;
		
		UInt16	*IInitFontTexture( void );

		void	IUnlink( void )
		{
			hsAssert( fPrevPtr, "Font not in list" );
			if( fNext )
				fNext->fPrevPtr = fPrevPtr;
			*fPrevPtr = fNext;

			fNext = nil;
			fPrevPtr = nil;
		}

	public:

		plTextFont( plPipeline *pipe );
		virtual ~plTextFont();

		void	Create( char *face, UInt16 size );
		void	DrawString( const char *string, int x, int y, UInt32 hexColor, UInt8 style, UInt32 rightEdge = 0 );
		void	DrawRect( int left, int top, int right, int bottom, UInt32 hexColor );
		void	Draw3DBorder( int left, int top, int right, int bottom, UInt32 hexColor1, UInt32 hexColor2 );
		UInt32	CalcStringWidth( const char *string );
		UInt32	GetFontSize( void ) { return fSize; }

		UInt16	GetFontHeight() { return fFontHeight; }

		virtual void	DestroyObjects( void ) = 0;
		virtual void	SaveStates( void ) = 0;
		virtual void	RestoreStates( void ) = 0;
		virtual void	FlushDraws( void ) = 0;

		void	Link( plTextFont **back )
		{
			fNext = *back;
			if( *back )
				(*back)->fPrevPtr = &fNext;
			fPrevPtr = back;
			*back = this;
		}

};


#endif // _plTextFont_h