chiark / gitweb /
Whoops. Use the right library initialization rune.
[mgLib] / msg.c
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1c48db0c 1/* -*-c-*-
2 *
ff3a8b71 3 * $Id: msg.c,v 1.8 1999/11/11 19:54:37 mdw Exp $
1c48db0c 4 *
5 * Display a message and get an answer
6 *
7 * (c) 1998 Straylight/Edgeware
8 */
9
10/*----- Licensing notice --------------------------------------------------*
11 *
12 * This file is part of the mgLib GTK utilities library.
13 *
14 * mgLib is free software; you can redistribute it and/or modify
19c0192c 15 * it under the terms of the GNU Library General Public License as
16 * published by the Free Software Foundation; either version 2 of the
17 * License, or (at your option) any later version.
1c48db0c 18 *
19 * mgLib 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
19c0192c 22 * GNU Library General Public License for more details.
1c48db0c 23 *
19c0192c 24 * You should have received a copy of the GNU Library General Public
e962a3e2 25 * License along with mgLib; if not, write to the Free
26 * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
27 * MA 02111-1307, USA.
1c48db0c 28 */
29
30/*----- Revision history --------------------------------------------------*
31 *
32 * $Log: msg.c,v $
ff3a8b71 33 * Revision 1.8 1999/11/11 19:54:37 mdw
34 * Prep for standalone release.
35 *
084b2d62 36 * Revision 1.7 1999/05/21 22:08:20 mdw
37 * Take advantage of new dynamic string macros.
38 *
e962a3e2 39 * Revision 1.6 1999/05/06 19:51:48 mdw
40 * Reformatted the LGPL notice a little bit.
41 *
19c0192c 42 * Revision 1.5 1999/05/05 18:52:45 mdw
43 * Change licensing conditions to LGPL.
44 *
ed2737aa 45 * Revision 1.4 1999/04/29 20:48:13 mdw
46 * Add documentation for `msg'.
47 *
8e774312 48 * Revision 1.3 1999/03/25 23:36:10 mdw
49 * Compile to nothing in absence of GTK, for the benefit of parent packages
50 * which contain non-GTK-dependent parts.
51 *
f2189185 52 * Revision 1.2 1998/12/15 23:48:06 mdw
53 * Use `dstr_putf' for formatting, rather than `sprintf'.
54 *
1c48db0c 55 * Revision 1.1 1998/12/11 09:44:21 mdw
56 * Initial version.
57 *
58 */
59
60/*----- Header files ------------------------------------------------------*/
61
62#include <stdarg.h>
63#include <stdio.h>
64#include <stdlib.h>
65#include <string.h>
66
67#include <gtk/gtk.h>
68
69#include <mLib/alloc.h>
f2189185 70#include <mLib/dstr.h>
1c48db0c 71
72#include "cancel.h"
73#include "mdwfocus.h"
74#include "msg.h"
75
76/*----- Static variables --------------------------------------------------*/
77
78static int reply;
79static int creply;
80
81/*----- Main code ---------------------------------------------------------*/
82
83/* --- @msg@ --- *
84 *
85 * Arguments: @char *buttons@ = the button strings to display
86 * @char *msg@ = the message skeleton string
87 *
88 * Returns: Index of the button selected.
89 *
90 * Use: Displays a message to the user in a nice dialogue box and
91 * returns the index of the button selected.
ed2737aa 92 *
93 * The @msg@ argument is a @printf@-style format string, which
94 * contains the message to actually be shown. The @buttons@
95 * argument is a comma-separated list of buttons to be drawn,
96 * from right to left. A button name can be preceded with `:'
97 * to indicate that it's the default, or `~' if it's the
98 * `cancel' button. The return value is the zero-based index
99 * of the button selected.
1c48db0c 100 */
101
102static int close(GtkWidget *w, gpointer p)
103{
104 reply = creply;
105 gtk_main_quit();
106 return (1);
107}
108
109static void click(GtkWidget *w, gpointer p)
110{
111 reply = (int)p;
112 gtk_main_quit();
113}
114
115int msg(const char *buttons, const char *msg, ...)
116{
117 GtkWidget *dbox, *w;
118
119 /* --- Make most of the dialogue box --- */
120
121 dbox = gtk_dialog_new();
122 gtk_signal_connect(GTK_OBJECT(dbox), "delete_event",
123 GTK_SIGNAL_FUNC(close), 0);
124 gtk_box_set_homogeneous(GTK_BOX(GTK_DIALOG(dbox)->action_area), 0);
125
126 /* --- Set up the message string --- */
127
128 {
084b2d62 129 dstr d = DSTR_INIT;
1c48db0c 130 va_list ap;
131
132 va_start(ap, msg);
f2189185 133 dstr_vputf(&d, msg, ap);
1c48db0c 134 va_end(ap);
f2189185 135 w = gtk_label_new(d.buf);
1c48db0c 136 gtk_box_pack_start(GTK_BOX(GTK_DIALOG(dbox)->vbox), w, 1, 1, 0);
137 gtk_window_position(GTK_WINDOW(dbox), GTK_WIN_POS_MOUSE);
138 gtk_widget_show(w);
139 gtk_misc_set_padding(GTK_MISC(w), 16, 16);
f2189185 140 dstr_destroy(&d);
1c48db0c 141 }
142
143 /* --- Set up the buttons --- */
144
145 {
146 char *p = xstrdup(buttons);
147 unsigned f = 0;
148 int i = 0;
149
150 enum {
151 f_ok = 1,
152 f_cancel = 2,
153 f_mdwfocus = 4
154 };
155
156 if (*p == '!') {
157 f |= f_mdwfocus;
158 p++;
159 }
160
161 creply = -1;
162
163 for (p = strtok(p, ","); p; p = strtok(0, ","), i++) {
164 unsigned ff = 0;
165 if (*p == ':') {
166 ff |= f_ok;
167 p++;
168 }
169 if (*p == '~') {
170 ff |= f_cancel;
171 creply = i;
172 p++;
173 }
174 w = gtk_button_new_with_label(p);
175 GTK_WIDGET_SET_FLAGS(w, GTK_CAN_DEFAULT);
176 gtk_box_pack_end(GTK_BOX(GTK_DIALOG(dbox)->action_area), w, 0, 0, 0);
177 gtk_signal_connect(GTK_OBJECT(w), "clicked",
178 GTK_SIGNAL_FUNC(click), (gpointer)i);
179 if (ff & f_ok)
180 gtk_widget_grab_default(w);
181 if (ff & f_cancel)
182 cancel(GTK_WINDOW(dbox), w);
183 gtk_widget_show(w);
184 }
f2189185 185 free(p);
186
187 /* --- Preflight checklist --- */
1c48db0c 188
189 gtk_widget_realize(dbox);
190 if (f & f_mdwfocus)
191 mdwfocus(dbox);
f2189185 192
1c48db0c 193 }
194
195 /* --- Ready --- */
196
197 gtk_grab_add(GTK_WIDGET(dbox));
198 gtk_widget_show(dbox);
199 gtk_main();
200 gtk_grab_remove(GTK_WIDGET(dbox));
201 gtk_widget_destroy(dbox);
202 return (reply);
203}
204
205/*----- That's all, folks -------------------------------------------------*/