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1 | /* -*-c-*- |
2 | * |
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3 | * $Id: msg.c,v 1.9 2002/01/13 14:32:22 mdw Exp $ |
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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 |
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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. |
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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 |
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22 | * GNU Library General Public License for more details. |
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23 | * |
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24 | * You should have received a copy of the GNU Library General Public |
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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. |
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28 | */ |
29 | |
30 | /*----- Revision history --------------------------------------------------* |
31 | * |
32 | * $Log: msg.c,v $ |
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33 | * Revision 1.9 2002/01/13 14:32:22 mdw |
34 | * Allow control over the message box title. |
35 | * |
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36 | * Revision 1.8 1999/11/11 19:54:37 mdw |
37 | * Prep for standalone release. |
38 | * |
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39 | * Revision 1.7 1999/05/21 22:08:20 mdw |
40 | * Take advantage of new dynamic string macros. |
41 | * |
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42 | * Revision 1.6 1999/05/06 19:51:48 mdw |
43 | * Reformatted the LGPL notice a little bit. |
44 | * |
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45 | * Revision 1.5 1999/05/05 18:52:45 mdw |
46 | * Change licensing conditions to LGPL. |
47 | * |
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48 | * Revision 1.4 1999/04/29 20:48:13 mdw |
49 | * Add documentation for `msg'. |
50 | * |
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51 | * Revision 1.3 1999/03/25 23:36:10 mdw |
52 | * Compile to nothing in absence of GTK, for the benefit of parent packages |
53 | * which contain non-GTK-dependent parts. |
54 | * |
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55 | * Revision 1.2 1998/12/15 23:48:06 mdw |
56 | * Use `dstr_putf' for formatting, rather than `sprintf'. |
57 | * |
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58 | * Revision 1.1 1998/12/11 09:44:21 mdw |
59 | * Initial version. |
60 | * |
61 | */ |
62 | |
63 | /*----- Header files ------------------------------------------------------*/ |
64 | |
65 | #include <stdarg.h> |
66 | #include <stdio.h> |
67 | #include <stdlib.h> |
68 | #include <string.h> |
69 | |
70 | #include <gtk/gtk.h> |
71 | |
72 | #include <mLib/alloc.h> |
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73 | #include <mLib/dstr.h> |
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74 | |
75 | #include "cancel.h" |
76 | #include "mdwfocus.h" |
77 | #include "msg.h" |
78 | |
79 | /*----- Static variables --------------------------------------------------*/ |
80 | |
81 | static int reply; |
82 | static int creply; |
83 | |
84 | /*----- Main code ---------------------------------------------------------*/ |
85 | |
86 | /* --- @msg@ --- * |
87 | * |
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88 | * Arguments: @const char *title@ = the title for the message box |
89 | * @const char *buttons@ = the button strings to display |
90 | * @const char *msg@ = the message skeleton string |
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91 | * |
92 | * Returns: Index of the button selected. |
93 | * |
94 | * Use: Displays a message to the user in a nice dialogue box and |
95 | * returns the index of the button selected. |
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96 | * |
97 | * The @msg@ argument is a @printf@-style format string, which |
98 | * contains the message to actually be shown. The @buttons@ |
99 | * argument is a comma-separated list of buttons to be drawn, |
100 | * from right to left. A button name can be preceded with `:' |
101 | * to indicate that it's the default, or `~' if it's the |
102 | * `cancel' button. The return value is the zero-based index |
103 | * of the button selected. |
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104 | */ |
105 | |
106 | static int close(GtkWidget *w, gpointer p) |
107 | { |
108 | reply = creply; |
109 | gtk_main_quit(); |
110 | return (1); |
111 | } |
112 | |
113 | static void click(GtkWidget *w, gpointer p) |
114 | { |
115 | reply = (int)p; |
116 | gtk_main_quit(); |
117 | } |
118 | |
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119 | int msg(const char *title, const char *buttons, const char *msg, ...) |
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120 | { |
121 | GtkWidget *dbox, *w; |
122 | |
123 | /* --- Make most of the dialogue box --- */ |
124 | |
125 | dbox = gtk_dialog_new(); |
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126 | gtk_window_set_title(GTK_WINDOW(dbox), title); |
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127 | gtk_signal_connect(GTK_OBJECT(dbox), "delete_event", |
128 | GTK_SIGNAL_FUNC(close), 0); |
129 | gtk_box_set_homogeneous(GTK_BOX(GTK_DIALOG(dbox)->action_area), 0); |
130 | |
131 | /* --- Set up the message string --- */ |
132 | |
133 | { |
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134 | dstr d = DSTR_INIT; |
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135 | va_list ap; |
136 | |
137 | va_start(ap, msg); |
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138 | dstr_vputf(&d, msg, ap); |
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139 | va_end(ap); |
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140 | w = gtk_label_new(d.buf); |
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141 | gtk_box_pack_start(GTK_BOX(GTK_DIALOG(dbox)->vbox), w, 1, 1, 0); |
142 | gtk_window_position(GTK_WINDOW(dbox), GTK_WIN_POS_MOUSE); |
143 | gtk_widget_show(w); |
144 | gtk_misc_set_padding(GTK_MISC(w), 16, 16); |
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145 | dstr_destroy(&d); |
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146 | } |
147 | |
148 | /* --- Set up the buttons --- */ |
149 | |
150 | { |
151 | char *p = xstrdup(buttons); |
152 | unsigned f = 0; |
153 | int i = 0; |
154 | |
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155 | #define f_ok 1u |
156 | #define f_cancel 2u |
157 | #define f_mdwfocus 4u |
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158 | |
159 | if (*p == '!') { |
160 | f |= f_mdwfocus; |
161 | p++; |
162 | } |
163 | |
164 | creply = -1; |
165 | |
166 | for (p = strtok(p, ","); p; p = strtok(0, ","), i++) { |
167 | unsigned ff = 0; |
168 | if (*p == ':') { |
169 | ff |= f_ok; |
170 | p++; |
171 | } |
172 | if (*p == '~') { |
173 | ff |= f_cancel; |
174 | creply = i; |
175 | p++; |
176 | } |
177 | w = gtk_button_new_with_label(p); |
178 | GTK_WIDGET_SET_FLAGS(w, GTK_CAN_DEFAULT); |
179 | gtk_box_pack_end(GTK_BOX(GTK_DIALOG(dbox)->action_area), w, 0, 0, 0); |
180 | gtk_signal_connect(GTK_OBJECT(w), "clicked", |
181 | GTK_SIGNAL_FUNC(click), (gpointer)i); |
182 | if (ff & f_ok) |
183 | gtk_widget_grab_default(w); |
184 | if (ff & f_cancel) |
185 | cancel(GTK_WINDOW(dbox), w); |
186 | gtk_widget_show(w); |
187 | } |
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188 | free(p); |
189 | |
190 | /* --- Preflight checklist --- */ |
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191 | |
192 | gtk_widget_realize(dbox); |
193 | if (f & f_mdwfocus) |
194 | mdwfocus(dbox); |
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195 | |
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196 | #undef f_ok |
197 | #undef f_cancel |
198 | #undef f_mdwfocus |
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199 | } |
200 | |
201 | /* --- Ready --- */ |
202 | |
203 | gtk_grab_add(GTK_WIDGET(dbox)); |
204 | gtk_widget_show(dbox); |
205 | gtk_main(); |
206 | gtk_grab_remove(GTK_WIDGET(dbox)); |
207 | gtk_widget_destroy(dbox); |
208 | return (reply); |
209 | } |
210 | |
211 | /*----- That's all, folks -------------------------------------------------*/ |