Re: [gtkmm] some help needed for a standard process

["Andreas B. Thun" <abt gmx de>]

Thx, Carl!

Actually, the ctor of FileSelection creates the Gtk::FileSelection:
m_Dialog = new Gtk::FileSelection(title);

What is my problem?



FileSelection::FileSelection(const string& title)
{
  m_Dialog = new Gtk::FileSelection(title);
  m_Dialog->set_transient_for(*this);
  m_Dialog->set_select_multiple(false);
  m_Dialog->hide_fileop_buttons();
  m_Dialog->set_filename("constraints.dat");

  int response = m_Dialog->run();
  switch(response)
  {
    case(Gtk::RESPONSE_OK):
    {
      m_selectedFile = string(m_Dialog->get_filename());
      break;
    }
    case(Gtk::RESPONSE_CANCEL):
    {
      m_selectedFile = "";
      break;
    }
  }
}


> Suggestion:  this seems like it would be better as has-a instead of
> is-a.  Let FileSelection::ctor create the Gtk::FileSelection. 
> getSelectedFile() can hook up the signals to destroy the Gtk::FileSel at
> the appropriate time, and then call the run() on the filesel.  It can
> also hook up the signal to grab the filename to be returned after run()
> is done.