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1 | /* -*-c-*- |
2 | * |
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3 | * $Id: xgetline.c,v 1.3 1998/11/21 22:30:20 mdw Exp $ |
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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 $ |
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32 | * Revision 1.3 1998/11/21 22:30:20 mdw |
33 | * Support GNU-style long options throughout, and introduce proper help |
34 | * text to all programs. Update manual pages to match. |
35 | * |
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36 | * Revision 1.2 1998/11/18 21:25:30 mdw |
37 | * Remove bogus `-h' option from the options list. |
38 | * |
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39 | * Revision 1.1 1998/11/16 23:00:49 mdw |
40 | * Initial versions. |
41 | * |
42 | */ |
43 | |
44 | /*----- Header files ------------------------------------------------------*/ |
45 | |
46 | #include <stdio.h> |
47 | #include <stdlib.h> |
48 | #include <string.h> |
49 | |
50 | #include <gtk/gtk.h> |
51 | #include <gdk/gdkkeysyms.h> |
52 | |
53 | #include "mdwopt.h" |
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54 | #include "quis.h" |
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55 | |
56 | /*----- Main code ---------------------------------------------------------*/ |
57 | |
58 | /* --- @cancel@ --- * |
59 | * |
60 | * Arguments: @GtkWidget *w@ = widget raising the signal |
61 | * @gpointer *p@ = pointer to integer result code |
62 | * |
63 | * Returns: --- |
64 | * |
65 | * Use: Sets the result code to zero (failure) and ends the loop. |
66 | */ |
67 | |
68 | static void cancel(GtkWidget *w, gpointer *p) |
69 | { |
70 | int *ip = (int *)p; |
71 | *ip = 0; |
72 | gtk_main_quit(); |
73 | } |
74 | |
75 | /* --- @done@ --- * |
76 | * |
77 | * Arguments: @GtkWidget *w@ = widget raising the signal |
78 | * @gpointer *p@ = pointer to integer result code |
79 | * |
80 | * Returns: --- |
81 | * |
82 | * Use: Sets the result code nonzero (success) and ends the loop. |
83 | */ |
84 | |
85 | static void done(GtkWidget *w, gpointer *p) |
86 | { |
87 | int *ip = (int *)p; |
88 | *ip = 1; |
89 | gtk_main_quit(); |
90 | } |
91 | |
92 | /* --- @check_escape@ --- * |
93 | * |
94 | * Arguments: @GtkWidget *w@ = widget raising the signal |
95 | * @GdkEventKey *ev@ = pointer to event data |
96 | * @gpointer *p@ = widget to activate in response |
97 | * |
98 | * Returns: --- |
99 | * |
100 | * Use: Activates a widget when an escape keypress is detected. |
101 | */ |
102 | |
103 | static gboolean check_escape(GtkWidget *w, GdkEventKey *ev, gpointer *p) |
104 | { |
105 | if (ev->keyval == GDK_Escape) { |
106 | if (p) |
107 | gtk_widget_activate(GTK_WIDGET(p)); |
108 | else |
109 | gtk_object_destroy(GTK_OBJECT(w)); |
110 | return (1); |
111 | } |
112 | return (0); |
113 | } |
114 | |
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115 | /* --- @version@ --- * |
116 | * |
117 | * Arguments: @FILE *fp@ = output stream to print the message on |
118 | * |
119 | * Returns: --- |
120 | * |
121 | * Use: Spits out a version message. |
122 | */ |
123 | |
124 | static void version(FILE *fp) |
125 | { |
126 | fprintf(fp, "%s (xtoys version " VERSION ")\n", QUIS); |
127 | } |
128 | |
129 | /* --- @usage@ --- * |
130 | * |
131 | * Arguments: @FILE *fp@ = output stream to print the message on |
132 | * |
133 | * Returns: --- |
134 | * |
135 | * Use: Spits out a usage message. |
136 | */ |
137 | |
138 | static void usage(FILE *fp) |
139 | { |
140 | fprintf(fp, "Usage: %s [-i] [-t title] [-p prompt] [-d default]\n", QUIS); |
141 | } |
142 | |
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143 | /* --- @main@ --- * |
144 | * |
145 | * Arguments: @int argc@ = number of command line arguments |
146 | * @char *argv[]@ = addresses of arguments |
147 | * |
148 | * Returns: Zero if OK, and we read a string; nonzero if the user |
149 | * cancelled. |
150 | * |
151 | * Use: Reads a string from the user, and returns it on standard |
152 | * output. |
153 | */ |
154 | |
155 | int main(int argc, char *argv[]) |
156 | { |
157 | /* --- Configuration variables --- */ |
158 | |
159 | char *prompt = 0; |
160 | char *dfl = ""; |
161 | char *title = "Input request"; |
162 | int left; |
163 | unsigned f = 0; |
164 | int ok = 0; |
165 | |
166 | enum { |
167 | f_invis = 1, |
168 | f_duff = 2 |
169 | }; |
170 | |
171 | /* --- User interface bits --- */ |
172 | |
173 | GtkWidget *win; |
174 | GtkWidget *box; |
175 | GtkWidget *entry; |
176 | GtkWidget *btn; |
177 | |
178 | /* --- Crank up the toolkit --- * |
179 | * |
180 | * Have to do this here: GTK snarfs some command line options which my |
181 | * parser would barf about. |
182 | */ |
183 | |
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184 | ego(argv[0]); |
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185 | gtk_init(&argc, &argv); |
186 | |
187 | /* --- Parse options from command line --- */ |
188 | |
189 | for (;;) { |
190 | |
191 | /* --- Long options structure --- */ |
192 | |
193 | static struct option opt[] = { |
194 | { "help", 0, 0, 'h' }, |
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195 | { "usage", 0, 0, 'u' }, |
196 | { "version", 0, 0, 'v' }, |
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197 | { "title", required_argument, 0, 't' }, |
198 | { "prompt", required_argument, 0, 'p' }, |
199 | { "default", required_argument, 0, 'd' }, |
200 | { "password", 0, 0, 'i' }, |
201 | { "invisible", 0, 0, 'i' }, |
202 | { 0, 0, 0, 0 } |
203 | }; |
204 | int i; |
205 | |
206 | /* --- Fetch an option --- */ |
207 | |
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208 | i = getopt_long(argc, argv, "huv t:p:d:i", opt, 0); |
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209 | if (i < 0) |
210 | break; |
211 | |
212 | /* --- Work out what to do with it --- */ |
213 | |
214 | switch (i) { |
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215 | case 'h': |
216 | version(stdout); |
217 | fputs("\n", stdout); |
218 | usage(stdout); |
219 | fputs( |
220 | "\n" |
221 | "Pops up a small window requesting input from a user, and echoes the\n" |
222 | "response to stdout, where it can be collected by a shell script.\n" |
223 | "\n" |
224 | "Options available are:\n" |
225 | "\n" |
226 | "-h, --help Display this help text\n" |
227 | "-u, --usage Display a short usage summary\n" |
228 | "-v, --version Display the program's version number\n" |
229 | "\n" |
230 | "-i, --invisible Don't show the user's string as it's typed\n" |
231 | "-t, --title=TITLE Set the window's title string\n" |
232 | "-p, --prompt=PROMPT Set the window's prompt string\n" |
233 | "-d, --default=DEFAULT Set the default string already in the window\n", |
234 | stdout); |
235 | exit(0); |
236 | break; |
237 | case 'u': |
238 | usage(stdout); |
239 | exit(0); |
240 | break; |
241 | case 'v': |
242 | version(stdout); |
243 | exit(0); |
244 | break; |
245 | |
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246 | case 't': |
247 | title = optarg; |
248 | break; |
249 | case 'p': |
250 | prompt = optarg; |
251 | break; |
252 | case 'd': |
253 | dfl = optarg; |
254 | break; |
255 | case 'i': |
256 | f |= f_invis; |
257 | break; |
258 | default: |
259 | f |= f_duff; |
260 | break; |
261 | } |
262 | } |
263 | |
264 | if (f & f_duff) { |
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265 | usage(stderr); |
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266 | exit(EXIT_FAILURE); |
267 | } |
268 | |
269 | /* --- Create the main window --- */ |
270 | |
271 | win = gtk_window_new(GTK_WINDOW_TOPLEVEL); |
272 | gtk_window_set_title(GTK_WINDOW(win), title); |
273 | gtk_window_position(GTK_WINDOW(win), GTK_WIN_POS_MOUSE); |
274 | gtk_signal_connect(GTK_OBJECT(win), "destroy", |
275 | GTK_SIGNAL_FUNC(cancel), &ok); |
276 | |
277 | /* --- Create the box for laying out the widgets inside --- */ |
278 | |
279 | left = (prompt ? 1 : 0); |
280 | box = gtk_table_new(left + 2, 1, 0); |
281 | |
282 | /* --- Maybe create a prompt widget --- */ |
283 | |
284 | if (prompt) { |
285 | GtkWidget *w = gtk_label_new(prompt); |
286 | gtk_table_attach(GTK_TABLE(box), w, |
287 | 0, 1, 0, 1, 0, GTK_EXPAND, 4, 2); |
288 | gtk_widget_show(w); |
289 | } |
290 | |
291 | /* --- Create the entry widget --- */ |
292 | |
293 | entry = gtk_entry_new(); |
294 | gtk_entry_set_text(GTK_ENTRY(entry), dfl); |
295 | gtk_table_attach(GTK_TABLE(box), entry, |
296 | left, left + 1, 0, 1, |
297 | GTK_EXPAND | GTK_FILL, GTK_EXPAND, 4, 2); |
298 | if (f & f_invis) |
299 | gtk_entry_set_visibility(GTK_ENTRY(entry), FALSE); |
300 | gtk_widget_show(entry); |
301 | |
302 | /* --- Create the default action widget --- */ |
303 | |
304 | btn = gtk_button_new_with_label("OK"); |
305 | gtk_table_attach(GTK_TABLE(box), btn, |
306 | left + 1, left + 2, 0, 1, 0, GTK_EXPAND, 2, 2); |
307 | GTK_WIDGET_SET_FLAGS(btn, GTK_CAN_DEFAULT); |
308 | gtk_widget_show(btn); |
309 | |
310 | /* --- Add the box into the main window --- */ |
311 | |
312 | gtk_container_add(GTK_CONTAINER(win), box); |
313 | gtk_widget_show(box); |
314 | |
315 | /* --- Last minute configuration things --- */ |
316 | |
317 | gtk_widget_grab_default(btn); |
318 | gtk_signal_connect(GTK_OBJECT(btn), "clicked", |
319 | GTK_SIGNAL_FUNC(done), &ok); |
320 | gtk_signal_connect_object(GTK_OBJECT(entry), "activate", |
321 | GTK_SIGNAL_FUNC(gtk_widget_activate), |
322 | GTK_OBJECT(btn)); |
323 | gtk_signal_connect(GTK_OBJECT(win), "key_press_event", |
324 | GTK_SIGNAL_FUNC(check_escape), 0); |
325 | |
326 | /* --- Go go go --- */ |
327 | |
328 | gtk_widget_show(win); |
329 | gtk_main(); |
330 | |
331 | /* --- Output the result --- */ |
332 | |
333 | if (ok) { |
334 | char *p = gtk_entry_get_text(GTK_ENTRY(entry)); |
335 | puts(p); |
336 | } |
337 | |
338 | return (ok ? EXIT_SUCCESS : EXIT_FAILURE); |
339 | } |
340 | |
341 | /*----- That's all, folks -------------------------------------------------*/ |