/*
*	SDL Graphics Extension
*	Text/TrueType functions (header)
*
*	Started 990815
*
*	License: LGPL v2+ (see the file LICENSE)
*	(c)1999-2001 Anders Lindström
*
*	Uses the excellent FreeType 2 library, available at:
*	http://www.freetype.org/
*/

/*********************************************************************
 *  This library is free software; you can redistribute it and/or    *
 *  modify it under the terms of the GNU Library General Public      *
 *  License as published by the Free Software Foundation; either     *
 *  version 2 of the License, or (at your option) any later version. *
 *********************************************************************/

#ifndef sge_tt_text_H
#define sge_tt_text_H

#include "SDL.h"
#include "sge_internal.h"

/* Text input flags */
#define SGE_IBG SGE_FLAG1
#define SGE_IDEL SGE_FLAG2
#define SGE_INOKR SGE_FLAG3

#ifndef _SGE_NOTTF
/* the truetype font structure */
typedef struct _sge_TTFont sge_TTFont;

/* Font style */
#define SGE_TTF_NORMAL SGE_FLAG0
#define SGE_TTF_BOLD SGE_FLAG1
#define SGE_TTF_ITALIC SGE_FLAG2
#define SGE_TTF_UNDERLINE SGE_FLAG3
#endif /* _SGE_NOTTF */

#ifdef _SGE_C
extern "C" {
#endif
#ifndef _SGE_NOTTF
DECLSPEC void sge_TTF_AAOff(void);
DECLSPEC void sge_TTF_AAOn(void);
DECLSPEC void sge_TTF_AA_Alpha(void);

DECLSPEC int sge_TTF_Init(void);
DECLSPEC sge_TTFont *sge_TTF_OpenFont(const char *file, int ptsize);
DECLSPEC int sge_TTF_SetFontSize(sge_TTFont *font, int ptsize);

DECLSPEC int sge_TTF_FontHeight(sge_TTFont *font);
DECLSPEC int sge_TTF_FontAscent(sge_TTFont *font);
DECLSPEC int sge_TTF_FontDescent(sge_TTFont *font);
DECLSPEC int sge_TTF_FontLineSkip(sge_TTFont *font);

DECLSPEC void sge_TTF_SetFontStyle(sge_TTFont *font, Uint8 style);
DECLSPEC Uint8 sge_TTF_GetFontStyle(sge_TTFont *font);

DECLSPEC void sge_TTF_CloseFont(sge_TTFont *font);

DECLSPEC SDL_Rect sge_TTF_TextSizeUNI(sge_TTFont *font, const Uint16 *text);
DECLSPEC SDL_Rect sge_TTF_TextSize(sge_TTFont *Font, const char *Text, int a_iMaxLength=-1);

DECLSPEC SDL_Rect sge_tt_textout(SDL_Surface *Surface, sge_TTFont *font, const char *string, Sint16 x, Sint16 y, Uint32 fcolor, Uint32 bcolor, int Alpha);
DECLSPEC SDL_Rect sge_tt_textout_UTF8(SDL_Surface *Surface, sge_TTFont *font, const char *string, Sint16 x, Sint16 y, Uint32 fcolor, Uint32 bcolor, int Alpha);
DECLSPEC SDL_Rect sge_tt_textout_UNI(SDL_Surface *Surface, sge_TTFont *font, const Uint16 *uni, Sint16 x, Sint16 y, Uint32 fcolor, Uint32 bcolor, int Alpha);

DECLSPEC SDL_Rect sge_tt_textoutf(SDL_Surface *Surface, sge_TTFont *font, Sint16 x, Sint16 y, Uint8 fR, Uint8 fG, Uint8 fB, Uint8 bR, Uint8 bG, Uint8 bB, int Alpha , const char *format,...);

DECLSPEC int sge_tt_input_UNI(SDL_Surface *screen,sge_TTFont *font,Uint16 *string,Uint8 flags, int pos,int len,Sint16 x,Sint16 y, Uint32 fcol, Uint32 bcol, int Alpha);
DECLSPEC int sge_tt_input(SDL_Surface *screen,sge_TTFont *font,char *string,Uint8 flags, int pos,int len,Sint16 x,Sint16 y, Uint32 fcol, Uint32 bcol, int Alpha);

DECLSPEC SDL_Surface *sge_TTF_RenderUNICODE(sge_TTFont *font,const Uint16 *text, SDL_Color fg, SDL_Color bg);
DECLSPEC SDL_Rect fast_update(SDL_Surface *Surface,SDL_Surface *buffer,SDL_Rect ret, int type,sge_TTFont *font,Uint16 *string, Sint16 x,Sint16 y, Uint32 fcol, Uint32 bcol,int Alpha);
DECLSPEC SDL_Rect nice_update(SDL_Surface *Surface,SDL_Surface *buffer,SDL_Rect ret, int type,sge_TTFont *font,Uint16 *string, Sint16 x,Sint16 y, Uint32 fcol, Uint32 bcol, int Alpha);
#endif /* _SGE_NOTTF */

DECLSPEC int keyrepeat(SDL_Event *event, int wait);
DECLSPEC void insert_char(Uint16 *string, Uint16 ch, int pos, int max);
DECLSPEC void delete_char(Uint16 *string, int pos, int max);
DECLSPEC Uint16 *sge_Latin1_Uni(const char *text);
#ifdef _SGE_C
}
#endif


#ifndef sge_C_ONLY
#ifndef _SGE_NOTTF
DECLSPEC SDL_Rect sge_tt_textout(SDL_Surface *Surface, sge_TTFont *font, const char *string, Sint16 x, Sint16 y, Uint8 fR, Uint8 fG, Uint8 fB, Uint8 bR, Uint8 bG, Uint8 bB, int Alpha);
DECLSPEC SDL_Rect sge_tt_textout_UTF8(SDL_Surface *Surface, sge_TTFont *font, const char *string, Sint16 x, Sint16 y, Uint8 fR, Uint8 fG, Uint8 fB, Uint8 bR, Uint8 bG, Uint8 bB, int Alpha);
DECLSPEC SDL_Rect sge_tt_textout_UNI(SDL_Surface *Surface, sge_TTFont *font, const Uint16 *uni, Sint16 x, Sint16 y, Uint8 fR, Uint8 fG, Uint8 fB, Uint8 bR, Uint8 bG, Uint8 bB, int Alpha);
DECLSPEC int sge_tt_input_UNI(SDL_Surface *screen,sge_TTFont *font,Uint16 *string,Uint8 flags, int pos,int len,Sint16 x,Sint16 y, Uint8 fR, Uint8 fG, Uint8 fB, Uint8 bR,Uint8 bG,Uint8 bB, int Alpha);
DECLSPEC int sge_tt_input(SDL_Surface *screen,sge_TTFont *font,char *string,Uint8 flags, int pos,int len,Sint16 x,Sint16 y, Uint8 fR, Uint8 fG, Uint8 fB, Uint8 bR,Uint8 bG,Uint8 bB, int Alpha);
#endif /* _SGE_NOTTF */
#endif /* sge_C_ONLY */


class CReadline
{
public:
	CReadline( SDL_Surface *a_poScreen, _sge_TTFont *a_poFont,
		char *a_pcString, int a_iPos, int a_iLen,
		int a_x, int a_y, int a_w, Uint32 a_iFCol, Uint32 a_iBCol, int a_iAlpha );
	~CReadline();

	void Restart( char *a_pcString, int a_iPos, int a_iLen,
		Uint32 a_iFCol, Uint32 a_iBCol, int a_iAlpha );
	int GetResult();
	void HandleKeyEvent( SDL_Event& a_roEvent );
	void Redraw();
	void Clear();

	int Execute();

protected:
	void Update( int a_iCode );
	void NiceUpdate( int a_iCode );

protected:
	SDL_Surface*	m_poScreen;
	SDL_Surface*	m_poBackground;
	SDL_Rect		m_oWorkArea;
	
	_sge_TTFont*	m_poFont;
	char*			m_pcLatin1String;
	Uint16*			m_piString;
	int				m_iPos;
	int				m_iLen;
	int				x, y, w;
	Uint32			m_iFCol;
	Uint32			m_iBCol;
	int				m_iAlpha;

	SDL_Rect		m_oUpdateRect;
	char			m_iCursor;
	int				m_iMax;
	int				m_iResult;
};



#endif /* sge_tt_text_H */