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Annotation of src/lib/libcurses/getch.c, Revision 1.1.1.1

1.1       cgd         1: /*
                      2:  * Copyright (c) 1981 Regents of the University of California.
                      3:  * All rights reserved.
                      4:  *
                      5:  * Redistribution and use in source and binary forms, with or without
                      6:  * modification, are permitted provided that the following conditions
                      7:  * are met:
                      8:  * 1. Redistributions of source code must retain the above copyright
                      9:  *    notice, this list of conditions and the following disclaimer.
                     10:  * 2. Redistributions in binary form must reproduce the above copyright
                     11:  *    notice, this list of conditions and the following disclaimer in the
                     12:  *    documentation and/or other materials provided with the distribution.
                     13:  * 3. All advertising materials mentioning features or use of this software
                     14:  *    must display the following acknowledgement:
                     15:  *     This product includes software developed by the University of
                     16:  *     California, Berkeley and its contributors.
                     17:  * 4. Neither the name of the University nor the names of its contributors
                     18:  *    may be used to endorse or promote products derived from this software
                     19:  *    without specific prior written permission.
                     20:  *
                     21:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
                     22:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     23:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     24:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
                     25:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     26:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     27:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     28:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     29:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     30:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     31:  * SUCH DAMAGE.
                     32:  */
                     33:
                     34: #ifndef lint
                     35: static char sccsid[] = "@(#)getch.c    5.6 (Berkeley) 6/1/90";
                     36: #endif /* not lint */
                     37:
                     38: # include      "curses.ext"
                     39:
                     40: /*
                     41:  *     This routine reads in a character from the window.
                     42:  *
                     43:  */
                     44: wgetch(win)
                     45: reg WINDOW     *win; {
                     46:
                     47:        reg bool        weset = FALSE;
                     48:        reg char        inp;
                     49:
                     50:        if (!win->_scroll && (win->_flags&_FULLWIN)
                     51:            && win->_curx == win->_maxx - 1 && win->_cury == win->_maxy - 1)
                     52:                return ERR;
                     53: # ifdef DEBUG
                     54:        fprintf(outf, "WGETCH: _echoit = %c, _rawmode = %c\n", _echoit ? 'T' : 'F', _rawmode ? 'T' : 'F');
                     55: # endif
                     56:        if (_echoit && !_rawmode) {
                     57:                cbreak();
                     58:                weset++;
                     59:        }
                     60:        inp = getchar();
                     61: # ifdef DEBUG
                     62:        fprintf(outf,"WGETCH got '%s'\n",unctrl(inp));
                     63: # endif
                     64:        if (_echoit) {
                     65:                mvwaddch(curscr, win->_cury + win->_begy,
                     66:                        win->_curx + win->_begx, inp);
                     67:                waddch(win, inp);
                     68:        }
                     69:        if (weset)
                     70:                nocbreak();
                     71:        return inp;
                     72: }