console/ncurses.c

   1 /* ncurses.c */
   2
   3 #include "config.h"
   4
   5 #ifdef WINE_NCURSES
   6
   7 /* This is the console driver for systems that support the ncurses
   8    interface.
   9 */
  10
  11 /* Actually, this should work for curses, as well. But there may be
  12    individual functions that are unsupported in plain curses or other
  13    variants. Those should be detected and special-cased by autoconf.
  14 */
  15
  16 /* When creating new drivers, you need to assign all the functions that
  17    that driver supports into the driver struct. If it is a supplementary
  18    driver, it should make sure to perserve the old values.
  19 */
  20
  21 #include "console.h"
  22 #include "debug.h"
  23 #undef ERR /* Use ncurses's err() */
  24 #include <curses.h>
  25
  26 void NCURSES_Start()
  27 {
  28    /* This should be the root driver so we can ignore anything
  29       already in the struct. */
  30
  31    driver.norefresh = FALSE;
  32
  33    driver.init = NCURSES_Init;
  34    driver.write = NCURSES_Write;
  35    driver.close = NCURSES_Close;
  36    driver.moveCursor = NCURSES_MoveCursor;
  37    driver.getCursorPosition = NCURSES_GetCursorPosition;
  38    driver.getCharacterAtCursor = NCURSES_GetCharacterAtCursor;
  39    driver.clearScreen = NCURSES_ClearScreen;
  40
  41    driver.checkForKeystroke = NCURSES_CheckForKeystroke;
  42    driver.getKeystroke = NCURSES_GetKeystroke;
  43
  44    driver.refresh = NCURSES_Refresh;
  45 }
  46
  47 void NCURSES_Init()
  48 {
  49    initscr();
  50    cbreak();
  51    noecho();
  52    nonl();
  53    intrflush(stdscr, FALSE);
  54    keypad(stdscr, TRUE);
  55    nodelay(stdscr, TRUE);
  56 }
  57
  58 void NCURSES_Write(char output, int fg, int bg, int attribute)
  59 {
  60    /* We can discard all extended information. */
  61    addch(output);
  62 }
  63
  64 void NCURSES_Close()
  65 {
  66    endwin();
  67 }
  68
  69 void NCURSES_GetKeystroke(char *scan, char *ascii)
  70 {
  71    while (!NCURSES_CheckForKeystroke(scan, ascii))
  72    {} /* Wait until keystroke is detected */
  73
  74    /* When it is detected, we will already have the right value
  75       in scan and ascii, but we need to take this keystroke
  76       out of the buffer. */
  77    getch();
  78 }
  79
  80 int NCURSES_CheckForKeystroke(char *scan, char *ascii)
  81 {
  82    /* We don't currently support scan codes here */
  83    /* FIXME */
  84    int temp;
  85    temp = getch();
  86    if (temp == ERR)
  87    {
  88       return FALSE;
  89    }
  90    else
  91    {
  92       ungetch(temp);  /* Keystroke not removed from buffer */
  93       *ascii = (char) temp;
  94       return TRUE;
  95    }
  96 }
  97
  98 void NCURSES_MoveCursor(char row, char col)
  99 {
 100    move(row, col);
 101 }
 102
 103 void NCURSES_GetCursorPosition(char *row, char *col)
 104 {
 105    int trow, tcol;
 106
 107    getyx(stdscr, trow, tcol); /* MACRO, no need to pass pointer */
 108
 109    *row = (char) trow;
 110    *col = (char) tcol;
 111 }
 112
 113 void NCURSES_GetCharacterAtCursor(char *ch, int *fg_color, int
 114    *bg_color, int *attribute)
 115 {
 116    /* We will eventually have to convert the color data */
 117    *ch = (char) inch();
 118    *fg_color = 0;
 119    *bg_color = 0;
 120    *attribute = 0;
 121 };
 122
 123 void NCURSES_Refresh()
 124 {
 125    refresh();
 126 }
 127
 128 void NCURSES_ClearScreen()
 129 {
 130    erase();
 131 }
 132
 133 #endif /* WINE_NCURSES */