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