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Force focus when starting up.
[xtoys] / xgetline.c
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90b2c5d4 1/* -*-c-*-
2 *
7347b0d9 3 * $Id: xgetline.c,v 1.5 1998/12/03 00:39:44 mdw Exp $
90b2c5d4 4 *
5 * Fetch a line of text from the user
6 *
7 * (c) 1998 Straylight/Edgeware
8 */
9
10/*----- Licensing notice --------------------------------------------------*
11 *
12 * This file is part of the Edgeware X tools collection.
13 *
14 * X tools is free software; you can redistribute it and/or modify
15 * it under the terms of the GNU General Public License as published by
16 * the Free Software Foundation; either version 2 of the License, or
17 * (at your option) any later version.
18 *
19 * X tools is distributed in the hope that it will be useful,
20 * but WITHOUT ANY WARRANTY; without even the implied warranty of
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 * GNU General Public License for more details.
23 *
24 * You should have received a copy of the GNU General Public License
25 * along with X tools; if not, write to the Free Software Foundation,
26 * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
27 */
28
29/*----- Revision history --------------------------------------------------*
30 *
31 * $Log: xgetline.c,v $
7347b0d9 32 * Revision 1.5 1998/12/03 00:39:44 mdw
33 * Force focus when starting up.
34 *
d6130abd 35 * Revision 1.4 1998/11/30 22:36:47 mdw
36 * Tidy up tabbing in help texts very slightly.
37 *
f3b35b6b 38 * Revision 1.3 1998/11/21 22:30:20 mdw
39 * Support GNU-style long options throughout, and introduce proper help
40 * text to all programs. Update manual pages to match.
41 *
881bb211 42 * Revision 1.2 1998/11/18 21:25:30 mdw
43 * Remove bogus `-h' option from the options list.
44 *
90b2c5d4 45 * Revision 1.1 1998/11/16 23:00:49 mdw
46 * Initial versions.
47 *
48 */
49
50/*----- Header files ------------------------------------------------------*/
51
52#include <stdio.h>
53#include <stdlib.h>
54#include <string.h>
55
56#include <gtk/gtk.h>
57#include <gdk/gdkkeysyms.h>
58
7347b0d9 59#include "mdwfocus.h"
90b2c5d4 60#include "mdwopt.h"
f3b35b6b 61#include "quis.h"
90b2c5d4 62
63/*----- Main code ---------------------------------------------------------*/
64
65/* --- @cancel@ --- *
66 *
67 * Arguments: @GtkWidget *w@ = widget raising the signal
68 * @gpointer *p@ = pointer to integer result code
69 *
70 * Returns: ---
71 *
72 * Use: Sets the result code to zero (failure) and ends the loop.
73 */
74
75static void cancel(GtkWidget *w, gpointer *p)
76{
77 int *ip = (int *)p;
78 *ip = 0;
79 gtk_main_quit();
80}
81
82/* --- @done@ --- *
83 *
84 * Arguments: @GtkWidget *w@ = widget raising the signal
85 * @gpointer *p@ = pointer to integer result code
86 *
87 * Returns: ---
88 *
89 * Use: Sets the result code nonzero (success) and ends the loop.
90 */
91
92static void done(GtkWidget *w, gpointer *p)
93{
94 int *ip = (int *)p;
95 *ip = 1;
96 gtk_main_quit();
97}
98
99/* --- @check_escape@ --- *
100 *
101 * Arguments: @GtkWidget *w@ = widget raising the signal
102 * @GdkEventKey *ev@ = pointer to event data
103 * @gpointer *p@ = widget to activate in response
104 *
105 * Returns: ---
106 *
107 * Use: Activates a widget when an escape keypress is detected.
108 */
109
110static gboolean check_escape(GtkWidget *w, GdkEventKey *ev, gpointer *p)
111{
112 if (ev->keyval == GDK_Escape) {
113 if (p)
114 gtk_widget_activate(GTK_WIDGET(p));
115 else
116 gtk_object_destroy(GTK_OBJECT(w));
117 return (1);
118 }
119 return (0);
120}
121
f3b35b6b 122/* --- @version@ --- *
123 *
124 * Arguments: @FILE *fp@ = output stream to print the message on
125 *
126 * Returns: ---
127 *
128 * Use: Spits out a version message.
129 */
130
131static void version(FILE *fp)
132{
133 fprintf(fp, "%s (xtoys version " VERSION ")\n", QUIS);
134}
135
136/* --- @usage@ --- *
137 *
138 * Arguments: @FILE *fp@ = output stream to print the message on
139 *
140 * Returns: ---
141 *
142 * Use: Spits out a usage message.
143 */
144
145static void usage(FILE *fp)
146{
147 fprintf(fp, "Usage: %s [-i] [-t title] [-p prompt] [-d default]\n", QUIS);
148}
149
90b2c5d4 150/* --- @main@ --- *
151 *
152 * Arguments: @int argc@ = number of command line arguments
153 * @char *argv[]@ = addresses of arguments
154 *
155 * Returns: Zero if OK, and we read a string; nonzero if the user
156 * cancelled.
157 *
158 * Use: Reads a string from the user, and returns it on standard
159 * output.
160 */
161
162int main(int argc, char *argv[])
163{
164 /* --- Configuration variables --- */
165
166 char *prompt = 0;
167 char *dfl = "";
168 char *title = "Input request";
169 int left;
170 unsigned f = 0;
171 int ok = 0;
172
173 enum {
174 f_invis = 1,
175 f_duff = 2
176 };
177
178 /* --- User interface bits --- */
179
180 GtkWidget *win;
181 GtkWidget *box;
182 GtkWidget *entry;
183 GtkWidget *btn;
184
185 /* --- Crank up the toolkit --- *
186 *
187 * Have to do this here: GTK snarfs some command line options which my
188 * parser would barf about.
189 */
190
f3b35b6b 191 ego(argv[0]);
90b2c5d4 192 gtk_init(&argc, &argv);
193
194 /* --- Parse options from command line --- */
195
196 for (;;) {
197
198 /* --- Long options structure --- */
199
200 static struct option opt[] = {
201 { "help", 0, 0, 'h' },
f3b35b6b 202 { "usage", 0, 0, 'u' },
203 { "version", 0, 0, 'v' },
90b2c5d4 204 { "title", required_argument, 0, 't' },
205 { "prompt", required_argument, 0, 'p' },
206 { "default", required_argument, 0, 'd' },
207 { "password", 0, 0, 'i' },
208 { "invisible", 0, 0, 'i' },
209 { 0, 0, 0, 0 }
210 };
211 int i;
212
213 /* --- Fetch an option --- */
214
f3b35b6b 215 i = getopt_long(argc, argv, "huv t:p:d:i", opt, 0);
90b2c5d4 216 if (i < 0)
217 break;
218
219 /* --- Work out what to do with it --- */
220
221 switch (i) {
f3b35b6b 222 case 'h':
223 version(stdout);
224 fputs("\n", stdout);
225 usage(stdout);
226 fputs(
227"\n"
228"Pops up a small window requesting input from a user, and echoes the\n"
229"response to stdout, where it can be collected by a shell script.\n"
230"\n"
231"Options available are:\n"
232"\n"
233"-h, --help Display this help text\n"
234"-u, --usage Display a short usage summary\n"
235"-v, --version Display the program's version number\n"
236"\n"
d6130abd 237"-i, --invisible\t Don't show the user's string as it's typed\n"
f3b35b6b 238"-t, --title=TITLE Set the window's title string\n"
239"-p, --prompt=PROMPT Set the window's prompt string\n"
240"-d, --default=DEFAULT Set the default string already in the window\n",
241 stdout);
242 exit(0);
243 break;
244 case 'u':
245 usage(stdout);
246 exit(0);
247 break;
248 case 'v':
249 version(stdout);
250 exit(0);
251 break;
252
90b2c5d4 253 case 't':
254 title = optarg;
255 break;
256 case 'p':
257 prompt = optarg;
258 break;
259 case 'd':
260 dfl = optarg;
261 break;
262 case 'i':
263 f |= f_invis;
264 break;
265 default:
266 f |= f_duff;
267 break;
268 }
269 }
270
271 if (f & f_duff) {
f3b35b6b 272 usage(stderr);
90b2c5d4 273 exit(EXIT_FAILURE);
274 }
275
276 /* --- Create the main window --- */
277
278 win = gtk_window_new(GTK_WINDOW_TOPLEVEL);
279 gtk_window_set_title(GTK_WINDOW(win), title);
280 gtk_window_position(GTK_WINDOW(win), GTK_WIN_POS_MOUSE);
281 gtk_signal_connect(GTK_OBJECT(win), "destroy",
282 GTK_SIGNAL_FUNC(cancel), &ok);
283
284 /* --- Create the box for laying out the widgets inside --- */
285
286 left = (prompt ? 1 : 0);
287 box = gtk_table_new(left + 2, 1, 0);
288
289 /* --- Maybe create a prompt widget --- */
290
291 if (prompt) {
292 GtkWidget *w = gtk_label_new(prompt);
293 gtk_table_attach(GTK_TABLE(box), w,
294 0, 1, 0, 1, 0, GTK_EXPAND, 4, 2);
295 gtk_widget_show(w);
296 }
297
298 /* --- Create the entry widget --- */
299
300 entry = gtk_entry_new();
301 gtk_entry_set_text(GTK_ENTRY(entry), dfl);
302 gtk_table_attach(GTK_TABLE(box), entry,
303 left, left + 1, 0, 1,
304 GTK_EXPAND | GTK_FILL, GTK_EXPAND, 4, 2);
305 if (f & f_invis)
306 gtk_entry_set_visibility(GTK_ENTRY(entry), FALSE);
307 gtk_widget_show(entry);
308
309 /* --- Create the default action widget --- */
310
311 btn = gtk_button_new_with_label("OK");
312 gtk_table_attach(GTK_TABLE(box), btn,
313 left + 1, left + 2, 0, 1, 0, GTK_EXPAND, 2, 2);
314 GTK_WIDGET_SET_FLAGS(btn, GTK_CAN_DEFAULT);
315 gtk_widget_show(btn);
316
317 /* --- Add the box into the main window --- */
318
319 gtk_container_add(GTK_CONTAINER(win), box);
320 gtk_widget_show(box);
321
322 /* --- Last minute configuration things --- */
323
324 gtk_widget_grab_default(btn);
325 gtk_signal_connect(GTK_OBJECT(btn), "clicked",
326 GTK_SIGNAL_FUNC(done), &ok);
327 gtk_signal_connect_object(GTK_OBJECT(entry), "activate",
328 GTK_SIGNAL_FUNC(gtk_widget_activate),
329 GTK_OBJECT(btn));
330 gtk_signal_connect(GTK_OBJECT(win), "key_press_event",
331 GTK_SIGNAL_FUNC(check_escape), 0);
332
333 /* --- Go go go --- */
334
7347b0d9 335 gtk_widget_realize(win);
336 mdwfocus(win);
90b2c5d4 337 gtk_widget_show(win);
338 gtk_main();
339
340 /* --- Output the result --- */
341
342 if (ok) {
343 char *p = gtk_entry_get_text(GTK_ENTRY(entry));
344 puts(p);
345 }
346
347 return (ok ? EXIT_SUCCESS : EXIT_FAILURE);
348}
349
350/*----- That's all, folks -------------------------------------------------*/
Various simple X tools