| 1 | /* -*-c-*- |
| 2 | * |
| 3 | * $Id: msg.c,v 1.5 1999/05/05 18:52:45 mdw Exp $ |
| 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 |
| 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. |
| 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 |
| 22 | * GNU Library General Public License for more details. |
| 23 | * |
| 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. |
| 27 | */ |
| 28 | |
| 29 | /*----- Revision history --------------------------------------------------* |
| 30 | * |
| 31 | * $Log: msg.c,v $ |
| 32 | * Revision 1.5 1999/05/05 18:52:45 mdw |
| 33 | * Change licensing conditions to LGPL. |
| 34 | * |
| 35 | * Revision 1.4 1999/04/29 20:48:13 mdw |
| 36 | * Add documentation for `msg'. |
| 37 | * |
| 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 | * |
| 42 | * Revision 1.2 1998/12/15 23:48:06 mdw |
| 43 | * Use `dstr_putf' for formatting, rather than `sprintf'. |
| 44 | * |
| 45 | * Revision 1.1 1998/12/11 09:44:21 mdw |
| 46 | * Initial version. |
| 47 | * |
| 48 | */ |
| 49 | |
| 50 | #ifdef HAVE_GTK |
| 51 | |
| 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> |
| 62 | #include <mLib/dstr.h> |
| 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. |
| 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. |
| 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 | { |
| 121 | dstr d; |
| 122 | va_list ap; |
| 123 | |
| 124 | va_start(ap, msg); |
| 125 | dstr_create(&d); |
| 126 | dstr_vputf(&d, msg, ap); |
| 127 | va_end(ap); |
| 128 | w = gtk_label_new(d.buf); |
| 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); |
| 133 | dstr_destroy(&d); |
| 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 | } |
| 178 | free(p); |
| 179 | |
| 180 | /* --- Preflight checklist --- */ |
| 181 | |
| 182 | gtk_widget_realize(dbox); |
| 183 | if (f & f_mdwfocus) |
| 184 | mdwfocus(dbox); |
| 185 | |
| 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 -------------------------------------------------*/ |
| 199 | |
| 200 | #else |
| 201 | int mgLib_msg = 0; |
| 202 | #endif |