diff options
Diffstat (limited to 'usr.bin/talk/display.c')
| -rw-r--r-- | usr.bin/talk/display.c | 190 |
1 files changed, 0 insertions, 190 deletions
diff --git a/usr.bin/talk/display.c b/usr.bin/talk/display.c deleted file mode 100644 index e5c059e..0000000 --- a/usr.bin/talk/display.c +++ /dev/null @@ -1,190 +0,0 @@ -/* - * Copyright (c) 1983, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#ifndef lint -static char sccsid[] = "@(#)display.c 8.1 (Berkeley) 6/6/93"; -#endif /* not lint */ - -/* - * The window 'manager', initializes curses and handles the actual - * displaying of text - */ -#include "talk.h" - -xwin_t my_win; -xwin_t his_win; -WINDOW *line_win; - -int curses_initialized = 0; - -/* - * max HAS to be a function, it is called with - * a argument of the form --foo at least once. - */ -max(a,b) - int a, b; -{ - - return (a > b ? a : b); -} - -/* - * Display some text on somebody's window, processing some control - * characters while we are at it. - */ -display(win, text, size) - register xwin_t *win; - register char *text; - int size; -{ - register int i; - char cch; - - for (i = 0; i < size; i++) { - if (*text == '\n') { - xscroll(win, 0); - text++; - continue; - } - /* erase character */ - if (*text == win->cerase) { - wmove(win->x_win, win->x_line, max(--win->x_col, 0)); - getyx(win->x_win, win->x_line, win->x_col); - waddch(win->x_win, ' '); - wmove(win->x_win, win->x_line, win->x_col); - getyx(win->x_win, win->x_line, win->x_col); - text++; - continue; - } - /* - * On word erase search backwards until we find - * the beginning of a word or the beginning of - * the line. - */ - if (*text == win->werase) { - int endcol, xcol, i, c; - - endcol = win->x_col; - xcol = endcol - 1; - while (xcol >= 0) { - c = readwin(win->x_win, win->x_line, xcol); - if (c != ' ') - break; - xcol--; - } - while (xcol >= 0) { - c = readwin(win->x_win, win->x_line, xcol); - if (c == ' ') - break; - xcol--; - } - wmove(win->x_win, win->x_line, xcol + 1); - for (i = xcol + 1; i < endcol; i++) - waddch(win->x_win, ' '); - wmove(win->x_win, win->x_line, xcol + 1); - getyx(win->x_win, win->x_line, win->x_col); - text++; - continue; - } - /* line kill */ - if (*text == win->kill) { - wmove(win->x_win, win->x_line, 0); - wclrtoeol(win->x_win); - getyx(win->x_win, win->x_line, win->x_col); - text++; - continue; - } - if (*text == '\f') { - if (win == &my_win) - wrefresh(curscr); - text++; - continue; - } - if (win->x_col == COLS-1) { - /* check for wraparound */ - xscroll(win, 0); - } - if (*text < ' ' && *text != '\t') { - waddch(win->x_win, '^'); - getyx(win->x_win, win->x_line, win->x_col); - if (win->x_col == COLS-1) /* check for wraparound */ - xscroll(win, 0); - cch = (*text & 63) + 64; - waddch(win->x_win, cch); - } else - waddch(win->x_win, *text); - getyx(win->x_win, win->x_line, win->x_col); - text++; - } - wrefresh(win->x_win); -} - -/* - * Read the character at the indicated position in win - */ -readwin(win, line, col) - WINDOW *win; -{ - int oldline, oldcol; - register int c; - - getyx(win, oldline, oldcol); - wmove(win, line, col); - c = winch(win); - wmove(win, oldline, oldcol); - return (c); -} - -/* - * Scroll a window, blanking out the line following the current line - * so that the current position is obvious - */ -xscroll(win, flag) - register xwin_t *win; - int flag; -{ - - if (flag == -1) { - wmove(win->x_win, 0, 0); - win->x_line = 0; - win->x_col = 0; - return; - } - win->x_line = (win->x_line + 1) % win->x_nlines; - win->x_col = 0; - wmove(win->x_win, win->x_line, win->x_col); - wclrtoeol(win->x_win); - wmove(win->x_win, (win->x_line + 1) % win->x_nlines, win->x_col); - wclrtoeol(win->x_win); - wmove(win->x_win, win->x_line, win->x_col); -} |
