resources/keybscr.h

   1 /* Quarn OS
   2  *
   3  * Keyboard and Screen
   4  *
   5  * Copyright (C) 2008-2009 Pawel Dziepak
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License along
  18  * with this program; if not, write to the Free Software Foundation, Inc.,
  19  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  */
  22
  23 #ifndef _KEYBSCR_H_
  24 #define _KEYBSCR_H_
  25
  26 #include "resources/stream.h"
  27 #include "resources/device.h"
  28
  29 #include "libs/buffer.h"
  30 #include "libs/fifo.h"
  31 #include "libs/colors.h"
  32
  33 namespace resources {
  34         class x86_keybscr;
  35
  36         class keybscr : public dev_stream, public color_output {
  37         private:
  38                 int x, y;
  39                 fifo<char> buf;
  40                 volatile bool enter;
  41
  42                 delegate<void> on_data_received;
  43
  44         protected:
  45                 virtual void received(const char a);
  46
  47                 virtual void screen_print(char, int, int, int) = 0;
  48                 virtual void scr_scroll() = 0;
  49
  50         public:
  51                 typedef x86_keybscr arch_keybscr;
  52
  53                 keybscr();
  54
  55                 virtual void read(buffer &);
  56                 virtual void write(const buffer&);
  57
  58                 virtual bool init_device(p<did> iadr) = 0;
  59
  60                 virtual void set_ondatareceived(delegate<void>);
  61
  62                 virtual int get_width() = 0;
  63                 virtual int get_height() = 0;
  64
  65                 static void register_type();
  66         };
  67 }
  68
  69 #endif