shithub: choc

ref: c380b055804a0616e7ad23054d5c151cffe3399a
dir: /textscreen/txt_main.h/

// Emacs style mode select   -*- C++ -*- 
//-----------------------------------------------------------------------------
//
// Copyright(C) 2005,2006 Simon Howard
//
// 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 2
// 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, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
// 02111-1307, USA.
//
//-----------------------------------------------------------------------------
//
// Text mode emulation in SDL
//
//-----------------------------------------------------------------------------

#ifndef TXT_MAIN_H
#define TXT_MAIN_H

// The textscreen API itself doesn't need SDL; however, SDL needs its
// headers included where main() is defined.

#include <SDL.h>

// Special keypress values that correspond to mouse button clicks
//
#define TXT_MOUSE_LEFT   1
#define TXT_MOUSE_RIGHT  2
#define TXT_MOUSE_MIDDLE 3

// Screen size

#define TXT_SCREEN_W 80
#define TXT_SCREEN_H 25

#define TXT_COLOR_BLINKING (1 << 3)

typedef enum
{
    TXT_COLOR_BLACK,
    TXT_COLOR_BLUE,
    TXT_COLOR_GREEN,
    TXT_COLOR_CYAN,
    TXT_COLOR_RED,
    TXT_COLOR_MAGENTA,
    TXT_COLOR_BROWN,
    TXT_COLOR_GREY,
    TXT_COLOR_DARK_GREY,
    TXT_COLOR_BRIGHT_BLUE,
    TXT_COLOR_BRIGHT_GREEN,
    TXT_COLOR_BRIGHT_CYAN,
    TXT_COLOR_BRIGHT_RED,
    TXT_COLOR_BRIGHT_MAGENTA,
    TXT_COLOR_YELLOW,
    TXT_COLOR_BRIGHT_WHITE,
} txt_color_t;

// Initialise the screen
// Returns 1 if successful, 0 if failed.

int TXT_Init(void);

// Shut down text mode emulation

void TXT_Shutdown(void);

// Get a pointer to the buffer containing the raw screen data.

unsigned char *TXT_GetScreenData(void);

// Update an area of the screen

void TXT_UpdateScreenArea(int x, int y, int w, int h);

// Update the whole screen

void TXT_UpdateScreen(void);

// Read a character from the keyboard

int TXT_GetChar(void);

// Provides a short description of a key code, placing into the 
// provided buffer.

void TXT_GetKeyDescription(int key, char *buf);

// Retrieve the current position of the mouse

void TXT_GetMousePosition(int *x, int *y);

// Sleep until an event is received or the screen needs updating
// Optional timeout in ms (timeout == 0 : sleep forever)

void TXT_Sleep(int timeout);

#endif /* #ifndef TXT_MAIN_H */