usr.bin/talk/display.c

69 display(xwin_t *win, char *text, int size)
76 			xscroll(win, 0);
81 		if (*text == win->cerase) {
82 			wmove(win->x_win, win->x_line, max(--win->x_col, 0));
83 			getyx(win->x_win, win->x_line, win->x_col);
84 			waddch(win->x_win, ' ');
85 			wmove(win->x_win, win->x_line, win->x_col);
86 			getyx(win->x_win, win->x_line, win->x_col);
95 		if (*text == win->werase) {
98 			endcol = win->x_col;
101 				c = readwin(win->x_win, win->x_line, xcol);
107 				c = readwin(win->x_win, win->x_line, xcol);
112 			wmove(win->x_win, win->x_line, xcol + 1);
114 				waddch(win->x_win, ' ');
115 			wmove(win->x_win, win->x_line, xcol + 1);
116 			getyx(win->x_win, win->x_line, win->x_col);
121 		if (*text == win->kill) {
122 			wmove(win->x_win, win->x_line, 0);
123 			wclrtoeol(win->x_win);
124 			getyx(win->x_win, win->x_line, win->x_col);
129 			if (win == &my_win)
139 		if (win->x_col == COLS-1) {
141 			xscroll(win, 0);
144 			waddch(win->x_win, '^');
145 			getyx(win->x_win, win->x_line, win->x_col);
146 			if (win->x_col == COLS-1) /* check for wraparound */
147 				xscroll(win, 0);
149 			waddch(win->x_win, cch);
151 			waddch(win->x_win, *text);
152 		getyx(win->x_win, win->x_line, win->x_col);
155 	wrefresh(win->x_win);
159  * Read the character at the indicated position in win
162 readwin(WINDOW *win, int line, int col)
167 	getyx(win, oldline, oldcol);
168 	wmove(win, line, col);
169 	c = winch(win);
170 	wmove(win, oldline, oldcol);
179 xscroll(xwin_t *win, int flag)
183 		wmove(win->x_win, 0, 0);
184 		win->x_line = 0;
185 		win->x_col = 0;
188 	win->x_line = (win->x_line + 1) % win->x_nlines;
189 	win->x_col = 0;
190 	wmove(win->x_win, win->x_line, win->x_col);
191 	wclrtoeol(win->x_win);
192 	wmove(win->x_win, (win->x_line + 1) % win->x_nlines, win->x_col);
193 	wclrtoeol(win->x_win);
194 	wmove(win->x_win, win->x_line, win->x_col);