void OpenFileWindowLoadPolygonList(Window callingWindow)
{
FileWindow fileWindow = GuiManager.AddFileWindow();
fileWindow.SetToLoad();
fileWindow.Filter = "PLYLSTX files (*.plylstx)|*.plylstx";
fileWindow.OkClick += LoadPolygonListOk;
if (!string.IsNullOrEmpty(EditorData.LastLoadedFile))
{
string directory = FileManager.GetDirectory(EditorData.LastLoadedFile);
fileWindow.SetDirectory(directory);
}
}