+shared_ptr<Cinema>
+ScreensPanel::item_to_cinema (wxTreeListItem item) const
+{
+ auto iter = _item_to_cinema.find (item);
+ if (iter == _item_to_cinema.end()) {
+ return {};
+ }
+
+ return iter->second;
+}
+
+
+shared_ptr<Screen>
+ScreensPanel::item_to_screen (wxTreeListItem item) const
+{
+ auto iter = _item_to_screen.find (item);
+ if (iter == _item_to_screen.end()) {
+ return {};
+ }
+
+ return iter->second;
+}
+
+
+optional<wxTreeListItem>
+ScreensPanel::cinema_to_item (shared_ptr<Cinema> cinema) const
+{
+ auto iter = _cinema_to_item.find (cinema);
+ if (iter == _cinema_to_item.end()) {
+ return {};
+ }
+
+ return iter->second;
+}
+
+
+optional<wxTreeListItem>
+ScreensPanel::screen_to_item (shared_ptr<Screen> screen) const
+{
+ auto iter = _screen_to_item.find (screen);
+ if (iter == _screen_to_item.end()) {
+ return {};
+ }
+
+ return iter->second;
+}
+
+
+bool
+ScreensPanel::notify_cinemas_changed()
+{
+ _ignore_cinemas_changed = true;
+ ScopeGuard sg = [this]() { _ignore_cinemas_changed = false; };
+
+ try {
+ Config::instance()->changed(Config::CINEMAS);
+ } catch (FileError& e) {
+ error_dialog(GetParent(), _("Could not write cinema details to the cinemas.xml file. Check that the location of cinemas.xml is valid in DCP-o-matic's preferences."), std_to_wx(e.what()));
+ return false;
+ }
+
+ return true;
+}
+
+
+void
+ScreensPanel::config_changed(Config::Property property)
+{
+ if (property == Config::Property::CINEMAS && !_ignore_cinemas_changed) {
+ clear_and_re_add();
+ }
+}
+
+
+void
+ScreensPanel::item_activated(wxTreeListEvent& ev)
+{
+ auto iter = _item_to_cinema.find(ev.GetItem());
+ if (iter != _item_to_cinema.end()) {
+ edit_cinema(iter->second);
+ } else {
+ auto iter = _item_to_screen.find(ev.GetItem());
+ if (iter != _item_to_screen.end()) {
+ edit_screen(iter->second);
+ }
+ }
+}
+
+