crawl-ref/source/libdos.cc

   1 /*
   2  *  File:       libdos.cc
   3  *  Summary:    Functions for DOS support.
   4  *              Needed by makefile.dos.
   5  *  Written by: Darshan Shaligram
   6  *
   7  *  Added for Crawl Reference by dshaligram on Wed Nov 22 08:41:20 2006 UTC
   8  */
   9
  10 // Every .cc must include AppHdr or bad things happen.
  11 #include "AppHdr.h"
  12
  13 #include "cio.h"
  14 #include <termios.h>
  15 #include <conio.h>
  16 #include "options.h"
  17 #include "viewgeom.h"
  18
  19 #if defined(TARGET_OS_DOS)
  20
  21 static bool cursor_is_enabled = true;
  22
  23 void init_libdos()
  24 {
  25     struct termios charmode;
  26
  27     tcgetattr (0, &charmode);
  28     // Ignore Ctrl-C
  29     charmode.c_lflag &= ~ISIG;
  30     tcsetattr (0, TCSANOW, &charmode);
  31
  32     // Turn off blink.
  33     intensevideo();
  34 }
  35
  36 void set_cursor_enabled(bool enabled)
  37 {
  38     cursor_is_enabled = enabled;
  39     _setcursortype(enabled? _NORMALCURSOR : _NOCURSOR);
  40 }
  41
  42 bool is_cursor_enabled()
  43 {
  44     return (cursor_is_enabled);
  45 }
  46
  47 // This will force the cursor down to the next line.
  48 void clear_to_end_of_line()
  49 {
  50     clreol();
  51 }
  52
  53 int get_number_of_lines()
  54 {
  55     return (25);
  56 }
  57
  58 int get_number_of_cols()
  59 {
  60     return (80);
  61 }
  62
  63 int getch_ck()
  64 {
  65     int c = getch();
  66     if (!c)
  67     {
  68         switch (c = getch())
  69         {
  70         case 'O':  return CK_END;
  71         case 'P':  return CK_DOWN;
  72         case 'I':  return CK_PGUP;
  73         case 'H':  return CK_UP;
  74         case 'G':  return CK_HOME;
  75         case 'K':  return CK_LEFT;
  76         case 'Q':  return CK_PGDN;
  77         case 'M':  return CK_RIGHT;
  78         case 119:  return CK_CTRL_HOME;
  79         case 141:  return CK_CTRL_UP;
  80         case 132:  return CK_CTRL_PGUP;
  81         case 116:  return CK_CTRL_RIGHT;
  82         case 118:  return CK_CTRL_PGDN;
  83         case 145:  return CK_CTRL_DOWN;
  84         case 117:  return CK_CTRL_END;
  85         case 115:  return CK_CTRL_LEFT;
  86         case 'S':  return CK_DELETE;
  87         }
  88     }
  89     return c;
  90 }
  91
  92 int m_getch()
  93 {
  94     return getch();
  95 }
  96
  97 void putwch(unsigned c)
  98 {
  99     putch(static_cast<char>(c));
 100 }
 101
 102 #endif /* #if defined(TARGET_OS_DOS) */