screen.h

Go to the documentation of this file.

// See the end of this file for license information.

#ifndef TORSION_SCREEN_H
#define TORSION_SCREEN_H

#include "types.h"

class Screen;
extern Screen screen;


class Screen {
protected:
  static const unsigned char DEFAULT_COLOR = 11;
  char* buffer;       
  unsigned char print_pos;    

public:
  static const Size WIDTH = 80;
  static const Size HEIGHT = 25;

  inline void
  init() {
    buffer = (char*)0xb8000;
    print_pos = 0;
  }

  Size
  display(char* str, unsigned char x, unsigned char y);

  Size
  display_line(char* str, unsigned char x, unsigned char y);

  Size
  display(unsigned number, unsigned char x, unsigned char y);

  inline Size
  display(void* pointer, unsigned char x, unsigned char y) {
    return display((unsigned)pointer, x, y);
  }

  void
  print(char* str, bool newline = true);

  void
  print(unsigned number, bool newline = true);

  inline void
  print(void* pointer, bool newline = true) {
    print((unsigned)pointer, newline);
  }

  inline void
  print() {
    print_pos = 0;
    scroll();
  }

  void
  clear();

  void
  move_cursor(unsigned char x, unsigned char y);

  void
  disable_cursor();

  void
  scroll();
};

#endif

/* Torsion Operating System, Copyright (C) 2000-2004 Dan Helfman
 *
 * 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 (in the COPYING file).
 * 
 * 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
 */

---

Torsion Operating System, Copyright (C) 2000-2004 Dan Helfman