GTK 3 cleanup: use GtkAboutDialog for the About box.

This is again easier than faffing about doing it manually, and as an
added bonus, we get to put the largest of our icons in the box as a
logo :-)

diff --git a/gtk.c b/gtk.c
index 62d0dd9278827bea0532192859a6b90f5d2a763e..78d8eaa5c4bba3e45a03c70bd0c0cff807a353f3 100644 (file)
--- a/gtk.c
+++ b/gtk.c
@@ -2229,6 +2229,21 @@ static void menu_config_event(GtkMenuItem *menuitem, gpointer data)
 static void menu_about_event(GtkMenuItem *menuitem, gpointer data)
 {
     frontend *fe = (frontend *)data;
+
+#if GTK_CHECK_VERSION(3,0,0)
+    extern char *const *const xpm_icons[];
+    extern const int n_xpm_icons;
+    GdkPixbuf *icon = gdk_pixbuf_new_from_xpm_data
+        ((const gchar **)xpm_icons[n_xpm_icons-1]);
+    gtk_show_about_dialog
+        (GTK_WINDOW(fe->window),
+         "program-name", thegame.name,
+         "version", ver,
+         "comments", "Part of Simon Tatham's Portable Puzzle Collection",
+         "logo", icon,
+         (const gchar *)NULL);
+    g_object_unref(G_OBJECT(icon));
+#else
     char titlebuf[256];
     char textbuf[1024];
 
@@ -2239,6 +2254,7 @@ static void menu_about_event(GtkMenuItem *menuitem, gpointer data)
            "%.500s", thegame.name, ver);
 
     message_box(fe->window, titlebuf, textbuf, TRUE, MB_OK);
+#endif
 }
 
 static GtkWidget *add_menu_item_with_key(frontend *fe, GtkContainer *cont,