Annotation of src/usr.bin/window/win.c, Revision 1.5
1.5 ! downsj 1: /* $OpenBSD$ */
1.3 niklas 2: /* $NetBSD: win.c,v 1.8 1996/02/08 21:07:57 mycroft Exp $ */
1.1 deraadt 3:
4: /*
5: * Copyright (c) 1983, 1993
6: * The Regents of the University of California. All rights reserved.
7: *
8: * This code is derived from software contributed to Berkeley by
9: * Edward Wang at The University of California, Berkeley.
10: *
11: * Redistribution and use in source and binary forms, with or without
12: * modification, are permitted provided that the following conditions
13: * are met:
14: * 1. Redistributions of source code must retain the above copyright
15: * notice, this list of conditions and the following disclaimer.
16: * 2. Redistributions in binary form must reproduce the above copyright
17: * notice, this list of conditions and the following disclaimer in the
18: * documentation and/or other materials provided with the distribution.
19: * 3. All advertising materials mentioning features or use of this software
20: * must display the following acknowledgement:
21: * This product includes software developed by the University of
22: * California, Berkeley and its contributors.
23: * 4. Neither the name of the University nor the names of its contributors
24: * may be used to endorse or promote products derived from this software
25: * without specific prior written permission.
26: *
27: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
28: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
29: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
30: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
31: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
32: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
33: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
34: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
35: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
36: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
37: * SUCH DAMAGE.
38: */
39:
40: #ifndef lint
41: #if 0
42: static char sccsid[] = "@(#)win.c 8.1 (Berkeley) 6/6/93";
43: #else
1.5 ! downsj 44: static char rcsid[] = "$OpenBSD$";
1.1 deraadt 45: #endif
46: #endif /* not lint */
47:
48: #include "defs.h"
49: #include "char.h"
50: #include <string.h>
51:
52: /*
53: * Higher level routines for dealing with windows.
54: *
55: * There are two types of windows: user window, and information window.
56: * User windows are the ones with a pty and shell. Information windows
57: * are for displaying error messages, and other information.
58: *
59: * The windows are doubly linked in overlapping order and divided into
60: * two groups: foreground and normal. Information
61: * windows are always foreground. User windows can be either.
62: * Addwin() adds a window to the list at the top of one of the two groups.
63: * Deletewin() deletes a window. Front() moves a window to the front
64: * of its group. Wwopen(), wwadd(), and wwdelete() should never be called
65: * directly.
66: */
67:
68: /*
69: * Open a user window.
70: */
71: struct ww *
1.3 niklas 72: openwin(id, row, col, nrow, ncol, nline, label, type, uflags, shf, sh)
1.1 deraadt 73: char *label;
74: char *shf, **sh;
75: {
76: register struct ww *w;
77:
78: if (id < 0 && (id = findid()) < 0)
79: return 0;
80: if (row + nrow <= 0 || row > wwnrow - 1
81: || col + ncol <= 0 || col > wwncol - 1) {
82: error("Illegal window position.");
83: return 0;
84: }
1.3 niklas 85: w = wwopen(type, 0, nrow, ncol, row, col, nline);
1.1 deraadt 86: if (w == 0) {
87: error("Can't open window: %s.", wwerror());
88: return 0;
89: }
90: w->ww_id = id;
91: window[id] = w;
1.3 niklas 92: CLR(w->ww_uflags, WWU_ALLFLAGS);
93: SET(w->ww_uflags, uflags);
1.1 deraadt 94: w->ww_alt = w->ww_w;
95: if (label != 0 && setlabel(w, label) < 0)
96: error("No memory for label.");
97: wwcursor(w, 1);
98: /*
99: * We have to do this little maneuver to make sure
100: * addwin() puts w at the top, so we don't waste an
101: * insert and delete operation.
102: */
103: setselwin((struct ww *)0);
104: addwin(w, 0);
105: setselwin(w);
106: if (wwspawn(w, shf, sh) < 0) {
107: error("Can't execute %s: %s.", shf, wwerror());
108: closewin(w);
109: return 0;
110: }
111: return w;
112: }
113:
114: findid()
115: {
116: register i;
117:
118: for (i = 0; i < NWINDOW && window[i] != 0; i++)
119: ;
120: if (i >= NWINDOW) {
121: error("Too many windows.");
122: return -1;
123: }
124: return i;
125: }
126:
127: struct ww *
128: findselwin()
129: {
130: register struct ww *w, *s = 0;
131: register i;
132:
133: for (i = 0; i < NWINDOW; i++)
134: if ((w = window[i]) != 0 && w != selwin &&
135: (s == 0 ||
136: !isfg(w) && (w->ww_order < s->ww_order || isfg(s))))
137: s = w;
138: return s;
139: }
140:
141: /*
142: * Close a user window. Close all if w == 0.
143: */
144: closewin(w)
145: register struct ww *w;
146: {
147: char didit = 0;
148: register i;
149:
150: if (w != 0) {
151: closewin1(w);
152: didit++;
153: } else
154: for (i = 0; i < NWINDOW; i++) {
155: if ((w = window[i]) == 0)
156: continue;
157: closewin1(w);
158: didit++;
159: }
160: if (didit) {
161: if (selwin == 0)
162: if (lastselwin != 0) {
163: setselwin(lastselwin);
164: lastselwin = 0;
165: } else if (w = findselwin())
166: setselwin(w);
167: if (lastselwin == 0 && selwin)
168: if (w = findselwin())
169: lastselwin = w;
170: reframe();
171: }
172: }
173:
174: /*
175: * Open an information (display) window.
176: */
177: struct ww *
178: openiwin(nrow, label)
179: char *label;
180: {
181: register struct ww *w;
182:
1.2 deraadt 183: if ((w = wwopen(WWT_INTERNAL, 0, nrow, wwncol, 2, 0, 0)) == 0)
1.1 deraadt 184: return 0;
1.3 niklas 185: SET(w->ww_wflags, WWW_MAPNL | WWW_NOINTR | WWW_NOUPDATE | WWW_UNCTRL);
186: SET(w->ww_uflags, WWU_HASFRAME | WWU_CENTER);
1.1 deraadt 187: w->ww_id = -1;
188: (void) setlabel(w, label);
189: addwin(w, 1);
190: reframe();
191: return w;
192: }
193:
194: /*
195: * Close an information window.
196: */
197: closeiwin(w)
198: struct ww *w;
199: {
200: closewin1(w);
201: reframe();
202: }
203:
204: closewin1(w)
205: register struct ww *w;
206: {
207: if (w == selwin)
208: selwin = 0;
209: if (w == lastselwin)
210: lastselwin = 0;
211: if (w->ww_id >= 0 && w->ww_id < NWINDOW)
212: window[w->ww_id] = 0;
213: if (w->ww_label)
214: str_free(w->ww_label);
215: deletewin(w);
216: wwclose(w);
217: }
218:
219: /*
220: * Move the window to the top of its group.
221: * Don't do it if already fully visible.
222: * Wwvisible() doesn't work for tinted windows.
223: * But anything to make it faster.
224: * Always reframe() if doreframe is true.
225: */
226: front(w, doreframe)
227: register struct ww *w;
228: char doreframe;
229: {
230: if (w->ww_back != (isfg(w) ? framewin : fgwin) && !wwvisible(w)) {
231: deletewin(w);
232: addwin(w, isfg(w));
233: doreframe = 1;
234: }
235: if (doreframe)
236: reframe();
237: }
238:
239: /*
240: * Add a window at the top of normal windows or foreground windows.
241: * For normal windows, we put it behind the current window.
242: */
243: addwin(w, fg)
244: register struct ww *w;
245: char fg;
246: {
247: if (fg) {
248: wwadd(w, framewin);
249: if (fgwin == framewin)
250: fgwin = w;
251: } else
252: wwadd(w, selwin != 0 && selwin != w && !isfg(selwin)
253: ? selwin : fgwin);
254: }
255:
256: /*
257: * Delete a window.
258: */
259: deletewin(w)
260: register struct ww *w;
261: {
262: if (fgwin == w)
263: fgwin = w->ww_back;
264: wwdelete(w);
265: }
266:
267: reframe()
268: {
269: register struct ww *w;
270:
271: wwunframe(framewin);
272: for (w = wwhead.ww_back; w != &wwhead; w = w->ww_back)
1.3 niklas 273: if (ISSET(w->ww_uflags, WWU_HASFRAME)) {
1.1 deraadt 274: wwframe(w, framewin);
275: labelwin(w);
276: }
277: }
278:
279: labelwin(w)
280: register struct ww *w;
281: {
282: int mode = w == selwin ? WWM_REV : 0;
283:
1.3 niklas 284: if (!ISSET(w->ww_uflags, WWU_HASFRAME))
1.1 deraadt 285: return;
286: if (w->ww_id >= 0) {
287: char buf[2];
288:
289: buf[0] = w->ww_id + '1';
290: buf[1] = 0;
291: wwlabel(w, framewin, 1, buf, mode);
292: }
293: if (w->ww_label) {
294: int col;
295:
1.3 niklas 296: if (ISSET(w->ww_uflags, WWU_CENTER)) {
1.1 deraadt 297: col = (w->ww_w.nc - strlen(w->ww_label)) / 2;
298: col = MAX(3, col);
299: } else
300: col = 3;
301: wwlabel(w, framewin, col, w->ww_label, mode);
302: }
303: }
304:
305: stopwin(w)
306: register struct ww *w;
307: {
1.2 deraadt 308: if (w->ww_pty >= 0 && w->ww_type == WWT_PTY && wwstoptty(w->ww_pty) < 0)
1.1 deraadt 309: error("Can't stop output: %s.", wwerror());
310: else
1.3 niklas 311: SET(w->ww_pflags, WWP_STOPPED);
1.1 deraadt 312: }
313:
314: startwin(w)
315: register struct ww *w;
316: {
1.2 deraadt 317: if (w->ww_pty >= 0 && w->ww_type == WWT_PTY && wwstarttty(w->ww_pty) < 0)
1.1 deraadt 318: error("Can't start output: %s.", wwerror());
319: else
1.3 niklas 320: CLR(w->ww_pflags, WWP_STOPPED);
1.1 deraadt 321: }
322:
323: sizewin(w, nrow, ncol)
324: register struct ww *w;
325: {
326: struct ww *back = w->ww_back;
327:
328: w->ww_alt.nr = w->ww_w.nr;
329: w->ww_alt.nc = w->ww_w.nc;
330: wwdelete(w);
331: if (wwsize(w, nrow, ncol) < 0)
332: error("Can't resize window: %s.", wwerror());
333: wwadd(w, back);
334: reframe();
335: }
336:
337: waitnl(w)
338: struct ww *w;
339: {
340: (void) waitnl1(w, "[Type any key to continue]");
341: }
342:
343: more(w, always)
344: register struct ww *w;
345: char always;
346: {
347: int c;
1.3 niklas 348: int uc = ISSET(w->ww_wflags, WWW_UNCTRL);
1.1 deraadt 349:
350: if (!always && w->ww_cur.r < w->ww_w.b - 2)
351: return 0;
352: c = waitnl1(w, "[Type escape to abort, any other key to continue]");
1.3 niklas 353: CLR(w->ww_wflags, WWW_UNCTRL);
1.1 deraadt 354: wwputs("\033E", w);
1.3 niklas 355: SET(w->ww_wflags, uc);
1.1 deraadt 356: return c == ctrl('[') ? 2 : 1;
357: }
358:
359: waitnl1(w, prompt)
360: register struct ww *w;
361: char *prompt;
362: {
1.3 niklas 363: int uc = ISSET(w->ww_wflags, WWW_UNCTRL);
1.1 deraadt 364:
1.3 niklas 365: CLR(w->ww_wflags, WWW_UNCTRL);
1.1 deraadt 366: front(w, 0);
367: wwprintf(w, "\033Y%c%c\033sA%s\033rA ",
368: w->ww_w.nr - 1 + ' ', ' ', prompt); /* print on last line */
369: wwcurtowin(w);
370: while (wwpeekc() < 0)
371: wwiomux();
1.3 niklas 372: SET(w->ww_wflags, uc);
1.1 deraadt 373: return wwgetc();
374: }
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