2 * Copyright (c) 1983, 1993
3 * The Regents of the University of California. All rights reserved.
5 * This code is derived from software contributed to Berkeley by
6 * Edward Wang at The University of California, Berkeley.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. All advertising materials mentioning features or use of this software
17 * must display the following acknowledgement:
18 * This product includes software developed by the University of
19 * California, Berkeley and its contributors.
20 * 4. Neither the name of the University nor the names of its contributors
21 * may be used to endorse or promote products derived from this software
22 * without specific prior written permission.
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36 * @(#)win.c 8.1 (Berkeley) 6/6/93
37 * $FreeBSD: src/usr.bin/window/win.c,v 1.1.1.1.14.1 2001/05/17 09:45:01 obrien Exp $
38 * $DragonFly: src/usr.bin/window/win.c,v 1.2 2003/06/17 04:29:34 dillon Exp $
45 * Higher level routines for dealing with windows.
47 * There are two types of windows: user window, and information window.
48 * User windows are the ones with a pty and shell. Information windows
49 * are for displaying error messages, and other information.
51 * The windows are doubly linked in overlapping order and divided into
52 * two groups: foreground and normal. Information
53 * windows are always foreground. User windows can be either.
54 * Addwin() adds a window to the list at the top of one of the two groups.
55 * Deletewin() deletes a window. Front() moves a window to the front
56 * of its group. Wwopen(), wwadd(), and wwdelete() should never be called
64 openwin(id, row, col, nrow, ncol, nline, label, haspty, hasframe, shf, sh)
66 char haspty, hasframe;
69 register struct ww *w;
71 if (id < 0 && (id = findid()) < 0)
73 if (row + nrow <= 0 || row > wwnrow - 1
74 || col + ncol <= 0 || col > wwncol - 1) {
75 error("Illegal window position.");
78 w = wwopen(haspty ? WWO_PTY : WWO_SOCKET, nrow, ncol, row, col, nline);
80 error("Can't open window: %s.", wwerror());
85 w->ww_hasframe = hasframe;
87 if (label != 0 && setlabel(w, label) < 0)
88 error("No memory for label.");
91 * We have to do this little maneuver to make sure
92 * addwin() puts w at the top, so we don't waste an
93 * insert and delete operation.
95 setselwin((struct ww *)0);
98 if (wwspawn(w, shf, sh) < 0) {
99 error("Can't execute %s: %s.", shf, wwerror());
110 for (i = 0; i < NWINDOW && window[i] != 0; i++)
113 error("Too many windows.");
122 register struct ww *w, *s = 0;
125 for (i = 0; i < NWINDOW; i++)
126 if ((w = window[i]) != 0 && w != selwin &&
128 !isfg(w) && (w->ww_order < s->ww_order || isfg(s))))
134 * Close a user window. Close all if w == 0.
137 register struct ww *w;
146 for (i = 0; i < NWINDOW; i++) {
147 if ((w = window[i]) == 0)
154 if (lastselwin != 0) {
155 setselwin(lastselwin);
157 } else if (w = findselwin())
159 if (lastselwin == 0 && selwin)
160 if (w = findselwin())
167 * Open an information (display) window.
170 openiwin(nrow, label)
173 register struct ww *w;
175 if ((w = wwopen(0, nrow, wwncol, 2, 0, 0)) == 0)
184 (void) setlabel(w, label);
191 * Close an information window.
201 register struct ww *w;
207 if (w->ww_id >= 0 && w->ww_id < NWINDOW)
208 window[w->ww_id] = 0;
210 str_free(w->ww_label);
216 * Move the window to the top of its group.
217 * Don't do it if already fully visible.
218 * Wwvisible() doesn't work for tinted windows.
219 * But anything to make it faster.
220 * Always reframe() if doreframe is true.
223 register struct ww *w;
226 if (w->ww_back != (isfg(w) ? framewin : fgwin) && !wwvisible(w)) {
236 * Add a window at the top of normal windows or foreground windows.
237 * For normal windows, we put it behind the current window.
240 register struct ww *w;
245 if (fgwin == framewin)
248 wwadd(w, selwin != 0 && selwin != w && !isfg(selwin)
256 register struct ww *w;
265 register struct ww *w;
268 for (w = wwhead.ww_back; w != &wwhead; w = w->ww_back)
269 if (w->ww_hasframe) {
270 wwframe(w, framewin);
276 register struct ww *w;
278 int mode = w == selwin ? WWM_REV : 0;
285 buf[0] = w->ww_id + '1';
287 wwlabel(w, framewin, 1, buf, mode);
293 col = (w->ww_w.nc - strlen(w->ww_label)) / 2;
297 wwlabel(w, framewin, col, w->ww_label, mode);
302 register struct ww *w;
304 if (w->ww_pty >= 0 && w->ww_ispty && wwstoptty(w->ww_pty) < 0)
305 error("Can't stop output: %s.", wwerror());
311 register struct ww *w;
313 if (w->ww_pty >= 0 && w->ww_ispty && wwstarttty(w->ww_pty) < 0)
314 error("Can't start output: %s.", wwerror());
319 sizewin(w, nrow, ncol)
320 register struct ww *w;
322 struct ww *back = w->ww_back;
324 w->ww_alt.nr = w->ww_w.nr;
325 w->ww_alt.nc = w->ww_w.nc;
327 if (wwsize(w, nrow, ncol) < 0)
328 error("Can't resize window: %s.", wwerror());
336 (void) waitnl1(w, "[Type any key to continue]");
340 register struct ww *w;
344 char uc = w->ww_unctrl;
346 if (!always && w->ww_cur.r < w->ww_w.b - 2)
348 c = waitnl1(w, "[Type escape to abort, any other key to continue]");
352 return c == ctrl('[') ? 2 : 1;
356 register struct ww *w;
359 char uc = w->ww_unctrl;
363 wwprintf(w, "\033Y%c%c\033sA%s\033rA ",
364 w->ww_w.nr - 1 + ' ', ' ', prompt); /* print on last line */
366 while (wwpeekc() < 0)