payloads/libpayload/curses/PDCurses/os2/pdcgetsc.c

   1 /* Public Domain Curses */
   2
   3 #include "pdcos2.h"
   4
   5 RCSID("$Id: pdcgetsc.c,v 1.39 2008/07/14 04:24:51 wmcbrine Exp $")
   6
   7 /* return width of screen/viewport */
   8
   9 int PDC_get_columns(void)
  10 {
  11 #ifdef EMXVIDEO
  12     int rows = 0;
  13 #else
  14     VIOMODEINFO modeInfo = {0};
  15 #endif
  16     int cols = 0;
  17     const char *env_cols;
  18
  19     PDC_LOG(("PDC_get_columns() - called\n"));
  20
  21 #ifdef EMXVIDEO
  22     v_dimen(&cols, &rows);
  23 #else
  24     modeInfo.cb = sizeof(modeInfo);
  25     VioGetMode(&modeInfo, 0);
  26     cols = modeInfo.col;
  27 #endif
  28     env_cols = getenv("COLS");
  29
  30     if (env_cols)
  31         cols = min(atoi(env_cols), cols);
  32
  33     PDC_LOG(("PDC_get_columns() - returned: cols %d\n", cols));
  34
  35     return cols;
  36 }
  37
  38 /* get the cursor size/shape */
  39
  40 int PDC_get_cursor_mode(void)
  41 {
  42 #ifdef EMXVIDEO
  43     int curstart = 0, curend = 0;
  44 #else
  45     VIOCURSORINFO cursorInfo;
  46 #endif
  47     PDC_LOG(("PDC_get_cursor_mode() - called\n"));
  48
  49 #ifdef EMXVIDEO
  50     v_getctype(&curstart, &curend);
  51     return (curstart << 8) | curend;
  52 #else
  53     VioGetCurType (&cursorInfo, 0);
  54
  55     return (cursorInfo.yStart << 8) | cursorInfo.cEnd;
  56 #endif
  57 }
  58
  59 /* return number of screen rows */
  60
  61 int PDC_get_rows(void)
  62 {
  63 #ifdef EMXVIDEO
  64     int cols = 0;
  65 #else
  66     VIOMODEINFO modeInfo = {0};
  67 #endif
  68     int rows = 0;
  69     const char *env_rows;
  70
  71     PDC_LOG(("PDC_get_rows() - called\n"));
  72
  73     /* use the value from LINES environment variable, if set. MH 10-Jun-92 */
  74     /* and use the minimum of LINES and *ROWS.                MH 18-Jun-92 */
  75
  76 #ifdef EMXVIDEO
  77     v_dimen(&cols, &rows);
  78 #else
  79     modeInfo.cb = sizeof(modeInfo);
  80     VioGetMode(&modeInfo, 0);
  81     rows = modeInfo.row;
  82 #endif
  83     env_rows = getenv("LINES");
  84
  85     if (env_rows)
  86         rows = min(atoi(env_rows), rows);
  87
  88     PDC_LOG(("PDC_get_rows() - returned: rows %d\n", rows));
  89
  90     return rows;
  91 }