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