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1 | /* -*-c-*- |
2 | * |
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3 | * $Id: xgetline.c,v 1.2 1998/11/18 21:25:30 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 1.2 1998/11/18 21:25:30 mdw |
33 | * Remove bogus `-h' option from the options list. |
34 | * |
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35 | * Revision 1.1 1998/11/16 23:00:49 mdw |
36 | * Initial versions. |
37 | * |
38 | */ |
39 | |
40 | /*----- Header files ------------------------------------------------------*/ |
41 | |
42 | #include <stdio.h> |
43 | #include <stdlib.h> |
44 | #include <string.h> |
45 | |
46 | #include <gtk/gtk.h> |
47 | #include <gdk/gdkkeysyms.h> |
48 | |
49 | #include "mdwopt.h" |
50 | |
51 | /*----- Main code ---------------------------------------------------------*/ |
52 | |
53 | /* --- @cancel@ --- * |
54 | * |
55 | * Arguments: @GtkWidget *w@ = widget raising the signal |
56 | * @gpointer *p@ = pointer to integer result code |
57 | * |
58 | * Returns: --- |
59 | * |
60 | * Use: Sets the result code to zero (failure) and ends the loop. |
61 | */ |
62 | |
63 | static void cancel(GtkWidget *w, gpointer *p) |
64 | { |
65 | int *ip = (int *)p; |
66 | *ip = 0; |
67 | gtk_main_quit(); |
68 | } |
69 | |
70 | /* --- @done@ --- * |
71 | * |
72 | * Arguments: @GtkWidget *w@ = widget raising the signal |
73 | * @gpointer *p@ = pointer to integer result code |
74 | * |
75 | * Returns: --- |
76 | * |
77 | * Use: Sets the result code nonzero (success) and ends the loop. |
78 | */ |
79 | |
80 | static void done(GtkWidget *w, gpointer *p) |
81 | { |
82 | int *ip = (int *)p; |
83 | *ip = 1; |
84 | gtk_main_quit(); |
85 | } |
86 | |
87 | /* --- @check_escape@ --- * |
88 | * |
89 | * Arguments: @GtkWidget *w@ = widget raising the signal |
90 | * @GdkEventKey *ev@ = pointer to event data |
91 | * @gpointer *p@ = widget to activate in response |
92 | * |
93 | * Returns: --- |
94 | * |
95 | * Use: Activates a widget when an escape keypress is detected. |
96 | */ |
97 | |
98 | static gboolean check_escape(GtkWidget *w, GdkEventKey *ev, gpointer *p) |
99 | { |
100 | if (ev->keyval == GDK_Escape) { |
101 | if (p) |
102 | gtk_widget_activate(GTK_WIDGET(p)); |
103 | else |
104 | gtk_object_destroy(GTK_OBJECT(w)); |
105 | return (1); |
106 | } |
107 | return (0); |
108 | } |
109 | |
110 | /* --- @main@ --- * |
111 | * |
112 | * Arguments: @int argc@ = number of command line arguments |
113 | * @char *argv[]@ = addresses of arguments |
114 | * |
115 | * Returns: Zero if OK, and we read a string; nonzero if the user |
116 | * cancelled. |
117 | * |
118 | * Use: Reads a string from the user, and returns it on standard |
119 | * output. |
120 | */ |
121 | |
122 | int main(int argc, char *argv[]) |
123 | { |
124 | /* --- Configuration variables --- */ |
125 | |
126 | char *prompt = 0; |
127 | char *dfl = ""; |
128 | char *title = "Input request"; |
129 | int left; |
130 | unsigned f = 0; |
131 | int ok = 0; |
132 | |
133 | enum { |
134 | f_invis = 1, |
135 | f_duff = 2 |
136 | }; |
137 | |
138 | /* --- User interface bits --- */ |
139 | |
140 | GtkWidget *win; |
141 | GtkWidget *box; |
142 | GtkWidget *entry; |
143 | GtkWidget *btn; |
144 | |
145 | /* --- Crank up the toolkit --- * |
146 | * |
147 | * Have to do this here: GTK snarfs some command line options which my |
148 | * parser would barf about. |
149 | */ |
150 | |
151 | gtk_init(&argc, &argv); |
152 | |
153 | /* --- Parse options from command line --- */ |
154 | |
155 | for (;;) { |
156 | |
157 | /* --- Long options structure --- */ |
158 | |
159 | static struct option opt[] = { |
160 | { "help", 0, 0, 'h' }, |
161 | { "title", required_argument, 0, 't' }, |
162 | { "prompt", required_argument, 0, 'p' }, |
163 | { "default", required_argument, 0, 'd' }, |
164 | { "password", 0, 0, 'i' }, |
165 | { "invisible", 0, 0, 'i' }, |
166 | { 0, 0, 0, 0 } |
167 | }; |
168 | int i; |
169 | |
170 | /* --- Fetch an option --- */ |
171 | |
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172 | i = getopt_long(argc, argv, "t:p:d:i", opt, 0); |
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173 | if (i < 0) |
174 | break; |
175 | |
176 | /* --- Work out what to do with it --- */ |
177 | |
178 | switch (i) { |
179 | case 't': |
180 | title = optarg; |
181 | break; |
182 | case 'p': |
183 | prompt = optarg; |
184 | break; |
185 | case 'd': |
186 | dfl = optarg; |
187 | break; |
188 | case 'i': |
189 | f |= f_invis; |
190 | break; |
191 | default: |
192 | f |= f_duff; |
193 | break; |
194 | } |
195 | } |
196 | |
197 | if (f & f_duff) { |
198 | fprintf(stderr, "xgetline: bad arguments\n"); |
199 | exit(EXIT_FAILURE); |
200 | } |
201 | |
202 | /* --- Create the main window --- */ |
203 | |
204 | win = gtk_window_new(GTK_WINDOW_TOPLEVEL); |
205 | gtk_window_set_title(GTK_WINDOW(win), title); |
206 | gtk_window_position(GTK_WINDOW(win), GTK_WIN_POS_MOUSE); |
207 | gtk_signal_connect(GTK_OBJECT(win), "destroy", |
208 | GTK_SIGNAL_FUNC(cancel), &ok); |
209 | |
210 | /* --- Create the box for laying out the widgets inside --- */ |
211 | |
212 | left = (prompt ? 1 : 0); |
213 | box = gtk_table_new(left + 2, 1, 0); |
214 | |
215 | /* --- Maybe create a prompt widget --- */ |
216 | |
217 | if (prompt) { |
218 | GtkWidget *w = gtk_label_new(prompt); |
219 | gtk_table_attach(GTK_TABLE(box), w, |
220 | 0, 1, 0, 1, 0, GTK_EXPAND, 4, 2); |
221 | gtk_widget_show(w); |
222 | } |
223 | |
224 | /* --- Create the entry widget --- */ |
225 | |
226 | entry = gtk_entry_new(); |
227 | gtk_entry_set_text(GTK_ENTRY(entry), dfl); |
228 | gtk_table_attach(GTK_TABLE(box), entry, |
229 | left, left + 1, 0, 1, |
230 | GTK_EXPAND | GTK_FILL, GTK_EXPAND, 4, 2); |
231 | if (f & f_invis) |
232 | gtk_entry_set_visibility(GTK_ENTRY(entry), FALSE); |
233 | gtk_widget_show(entry); |
234 | |
235 | /* --- Create the default action widget --- */ |
236 | |
237 | btn = gtk_button_new_with_label("OK"); |
238 | gtk_table_attach(GTK_TABLE(box), btn, |
239 | left + 1, left + 2, 0, 1, 0, GTK_EXPAND, 2, 2); |
240 | GTK_WIDGET_SET_FLAGS(btn, GTK_CAN_DEFAULT); |
241 | gtk_widget_show(btn); |
242 | |
243 | /* --- Add the box into the main window --- */ |
244 | |
245 | gtk_container_add(GTK_CONTAINER(win), box); |
246 | gtk_widget_show(box); |
247 | |
248 | /* --- Last minute configuration things --- */ |
249 | |
250 | gtk_widget_grab_default(btn); |
251 | gtk_signal_connect(GTK_OBJECT(btn), "clicked", |
252 | GTK_SIGNAL_FUNC(done), &ok); |
253 | gtk_signal_connect_object(GTK_OBJECT(entry), "activate", |
254 | GTK_SIGNAL_FUNC(gtk_widget_activate), |
255 | GTK_OBJECT(btn)); |
256 | gtk_signal_connect(GTK_OBJECT(win), "key_press_event", |
257 | GTK_SIGNAL_FUNC(check_escape), 0); |
258 | |
259 | /* --- Go go go --- */ |
260 | |
261 | gtk_widget_show(win); |
262 | gtk_main(); |
263 | |
264 | /* --- Output the result --- */ |
265 | |
266 | if (ok) { |
267 | char *p = gtk_entry_get_text(GTK_ENTRY(entry)); |
268 | puts(p); |
269 | } |
270 | |
271 | return (ok ? EXIT_SUCCESS : EXIT_FAILURE); |
272 | } |
273 | |
274 | /*----- That's all, folks -------------------------------------------------*/ |