- for (unsigned int i = 0, j = item_nodes.size() - 1;
- i < item_nodes.size();
- i++, j--) {
-
- // Set up the PUI entries for this item
- items[j] = strdup((char *)item_nodes[i]->getStringValue("label"));
- callbacks[j] = menu_callback;
-
- // Load all the bindings for this item
- vector<SGPropertyNode_ptr> bindings = item_nodes[i]->getChildren("binding");
- SGPropertyNode * dest = fgGetNode("/sim/bindings/menu", true);
-
- for (unsigned int k = 0; k < bindings.size(); k++) {
- unsigned int m = 0;
- SGPropertyNode_ptr binding;
- while (dest->getChild("binding", m))
- m++;
-
- binding = dest->getChild("binding", m, true);
- copyProperties(bindings[k], binding);
- _bindings[items[j]].push_back(new SGBinding(binding, globals->get_props()));
- }
- }
-
- _menuBar->add_submenu(name, items, callbacks);
-}
-
-void
-FGMenuBar::make_menubar ()
-{
- SGPropertyNode *targetpath;
-
- targetpath = fgGetNode("/sim/menubar/default",true);
- // fgLoadProps("gui/menubar.xml", targetpath);
-
- /* NOTE: there is no check to see whether there's any usable data at all
- *
- * This would also have the advantage of being able to create some kind of
- * 'fallback' menu - just in case that either menubar.xml is empty OR that
- * its XML data is not valid, that way we would avoid displaying an
- * unusable menubar without any functionality - if we decided to add another
- * char * element to the commands structure in
- * $FG_SRC/src/Main/fgcommands.cxx
- * we could additionally save each function's (short) description and use
- * this as label for the fallback PUI menubar item labels - as a workaround
- * one might simply use the internal fgcommands and put them into the
- * fallback menu, so that the user is at least able to re-init the menu
- * loading - just in case there was some malformed XML in it
- * (it happend to me ...)
- */
-
- make_menubar(targetpath);
-}
-
-/* WARNING: We aren't yet doing any validation of what's found - but since
- * this isn't done with menubar.xml either, it should not really matter
- * right now. Although one should later on consider to validate the
- * contents, whether they are representing a 'legal' menubar structure.
- */
-void
-FGMenuBar::make_menubar(SGPropertyNode * props)
-{
- // Just in case.
- destroy_menubar();
- _menuBar = new puMenuBar;
-
- vector<SGPropertyNode_ptr> menu_nodes = props->getChildren("menu");
- for (unsigned int i = 0; i < menu_nodes.size(); i++)
- make_menu(menu_nodes[i]);
-
- _menuBar->close();
- make_object_map(props);
-
- if (_visible)
- _menuBar->reveal();
- else
- _menuBar->hide();
-}
-
-void
-FGMenuBar::destroy_menubar ()
-{
- if ( _menuBar == 0 )
- return;
-
- hide();
- puDeleteObject(_menuBar);
-
- unsigned int i;
-
- // Delete all the character arrays
- // we were forced to keep around for
- // plib.
- SG_LOG(SG_GENERAL, SG_BULK, "Deleting char arrays");
- for (i = 0; i < _char_arrays.size(); i++) {
- for (int j = 0; _char_arrays[i][j] != 0; j++)
- free(_char_arrays[i][j]); // added with strdup
- delete[] _char_arrays[i];
- }
-
- // Delete all the callback arrays
- // we were forced to keep around for
- // plib.
- SG_LOG(SG_GENERAL, SG_BULK, "Deleting callback arrays");
- for (i = 0; i < _callback_arrays.size(); i++)
- delete[] _callback_arrays[i];
-
- // Delete all those bindings
- SG_LOG(SG_GENERAL, SG_BULK, "Deleting bindings");
- map<string,vector<SGBinding *> >::iterator it;
- for (it = _bindings.begin(); it != _bindings.end(); it++) {
- SG_LOG(SG_GENERAL, SG_BULK, "Deleting bindings for " << it->first);
- for ( i = 0; i < it->second.size(); i++ )
- delete it->second[i];
- }
-
- SG_LOG(SG_GENERAL, SG_BULK, "Done.");
-}
-
-void
-FGMenuBar::make_object_map(SGPropertyNode * node)
-{
- unsigned int menu_index = 0;
- vector<SGPropertyNode_ptr> menus = node->getChildren("menu");
- for (puObject *obj = ((puGroup *)_menuBar)->getFirstChild();
- obj; obj = obj->getNextObject()) {
-
- // skip puPopupMenus. They are also children of _menuBar,
- // but we access them via getUserData() (see below)
- if (!(obj->getType() & PUCLASS_ONESHOT))
- continue;
-
- if (menu_index >= menus.size()) {
- SG_LOG(SG_GENERAL, SG_WARN, "'menu' object without node: "
- << node->getPath() << "/menu[" << menu_index << ']');
- return;
- }
-
- SGPropertyNode *menu = menus.at(menu_index);
- _objects[menu->getPath()] = obj;
- add_enabled_listener(menu);
-
- puGroup *popup = (puGroup *)obj->getUserData();
- if (!popup)
- continue;
-
- // the entries are for some reason reversed (last first), and we
- // don't know yet how many there will be; so we collect first
- vector<puObject *> e;
- for (puObject *me = popup->getFirstChild(); me; me = me->getNextObject())
- e.push_back(me);
-
- vector<SGPropertyNode_ptr> items = menu->getChildren("item");
- for (unsigned int i = 0; i < e.size(); i++) {
- if (i >= items.size()) {
- SG_LOG(SG_GENERAL, SG_WARN, "'item' object without node: "
- << menu->getPath() << "/item[" << i << ']');
- break;
- }
- SGPropertyNode *item = items.at(e.size() - i - 1);
- _objects[item->getPath()] = e[i];
- add_enabled_listener(item);
- }
- menu_index++;
- }
-}
-
-struct EnabledListener : SGPropertyChangeListener {
- void valueChanged(SGPropertyNode *node) {
- NewGUI * gui = (NewGUI *)globals->get_subsystem("gui");
- if (!gui)
- return;
- FGMenuBar *menubar = gui->getMenuBar();
- if (menubar)
- menubar->enable_item(node->getParent(), node->getBoolValue());
- }
-};
-
-void
-FGMenuBar::add_enabled_listener(SGPropertyNode * node)
-{
- if (!node->hasValue("enabled"))
- node->setBoolValue("enabled", true);
-
- enable_item(node, node->getBoolValue("enabled"));
- node->getNode("enabled")->addChangeListener(new EnabledListener());
-}
-
-bool
-FGMenuBar::enable_item(const SGPropertyNode * node, bool state)
-{
- const char *path = node->getPath();
- if (_objects.find(path) == _objects.end()) {
- SG_LOG(SG_GENERAL, SG_ALERT, "Trying to enable/disable "
- "non-existent menu item for node `" << path << '\'');
- return false;
- }
- puObject *object = _objects[path];
- if (state)
- object->activate();
- else
- object->greyOut();
-
- return true;
-}
-
-char **
-FGMenuBar::make_char_array (int size)
-{
- char ** list = new char*[size+1];
- for (int i = 0; i <= size; i++)
- list[i] = 0;
- _char_arrays.push_back(list);
- return list;
-}
-
-puCallback *
-FGMenuBar::make_callback_array (int size)
-{
- puCallback * list = new puCallback[size+1];
- for (int i = 0; i <= size; i++)
- list[i] = 0;
- _callback_arrays.push_back(list);
- return list;