filesystem watching optimization

project_fs/projectfilesystemwidget.h

@@ -28,6 +28,7 @@ public:
 
 protected:
 	void changeEvent(QEvent * e);
+	void timerEvent(QTimerEvent * e);
 	void createTree(QTreeWidgetItem * ti, const QString & dir, bool proc_events = true);
 	void createProjectTree(void * p);
 	void projectNameChanged();
@@ -42,11 +43,12 @@ protected:
 	void cleanMappedItems();
 
 	bool in_proc, need_rebuild;
+	int timer_fs_changed = 0;
 	ExtensionSystem::IPlugin * proj_plug;
 	QMenu popup_menu;
 	QList<QAction*> this_actions;
 	QMap<QString, QTreeWidgetItem*> item_map;
-	QSet<QString> last_expanded;
+	QSet<QString> last_expanded, fs_changed;
 	FilterDialog filter_dialog;
 	FilterDialog::Filter cur_filter;
 	QElapsedTimer tm;