-Project settings can properly add/remove properties again, fixes #3177

tools/editor/project_settings.cpp

@@ -530,7 +530,7 @@ void ProjectSettings::_item_selected() {
 		return;
 	if (!ti->get_parent())
 		return;
-	category->set_text(ti->get_parent()->get_text(0));
+	category->set_text(globals_editor->get_current_section());
 	property->set_text(ti->get_text(0));
 	popup_platform->set_disabled(false);
 
@@ -569,7 +569,8 @@ void ProjectSettings::_item_add() {
 
 	String name = catname+"/"+propname;
 	Globals::get_singleton()->set(name,value);
-	globals_editor->get_property_editor()->update_tree();
+	globals_editor->edit(NULL);
+	globals_editor->edit(Globals::get_singleton());
 }
 
 void ProjectSettings::_item_del() {

tools/editor/property_editor.cpp

@@ -3812,6 +3812,11 @@ void SectionedPropertyEditor::_section_selected(int p_which) {
 	filter->set_section( sections->get_item_metadata(p_which) );
 }
 
+String SectionedPropertyEditor::get_current_section() const {
+
+	return sections->get_item_metadata( sections->get_current() );
+}
+
 String SectionedPropertyEditor::get_full_item_path(const String& p_item) {
 
 	String base = sections->get_item_metadata( sections->get_current() );

tools/editor/property_editor.h

@@ -270,6 +270,7 @@ public:
 	PropertyEditor *get_property_editor();
 	void edit(Object* p_object);
 	String get_full_item_path(const String& p_item);
+	String get_current_section() const;
 
 	SectionedPropertyEditor();
 	~SectionedPropertyEditor();