Re: [gtkmm] Confused with TabElem

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

Hi,

I remove pages from my notebook with:
  int cPage = m_Notebook.get_current_page();
  m_Notebook.remove_page(cPage);

I add them with:
  string notebookTabName;
  notebookTabName.assign("tabNameonly20charslong", 0, 20);
  m_Notebook.append_page(*NotebookWidgets, notebookTabName);
  m_Notebook.show_all_children();
  m_Notebook.set_current_page(-1); // activate last page
  // do not swap these lines

> I am trying to implement a dynamic notebook (adding and removing tabs to
> a notebook during runtime).  I'm using the 'Notebook_Helpers::TabElem()'
> approach to this, since this seems to be the best way to go about it
> (?).  However, I am having trouble understanding the logic and usage of
> TabElem().  Here is what I have so far:
>
> Gtk::TextView *textview = Gtk::manage(new class Gtk::TextView());
> Gtk::ScrolledWindow *scrolledwindow = Gtk::manage(new class
> 	Gtk::ScrolledWindow());
> Gtk::Label *label = Gtk::manage(new class Gtk::Label("Test"));
> Gtk::Image *image = Gtk::manage(new class
> 	Gtk::Image(Gtk::StockID("gtk-close"), Gtk::IconSize(4)));
> Gtk::Button *button = Gtk::manage(new class Gtk::Button());
> Gtk::HBox *hbox = Gtk::manage(new class Gtk::HBox(false, 0));
>
> ... Do stuff to initialize the above widgets,including the following 3
> lines:
>
> button->add(*image);  // This is a small close button
> hbox->pack_start(*label, Gtk::PACK_SHRINK, 10);
> hbox->pack_start(*button, Gtk::PACK_SHRINK, 0);
>
> notebook1->pages().push_back(Gtk::Notebook_Helpers::TabElem(*scrolledwindow, *hbox));
> show_all_children();
> notebook1->set_current_page(-1);
> -------------------------------------------------------------------------
> Obviously I am doing this wrong.  When I test this code, the tab gets
> added during runtime as expected, but none of the widgets that are
> supposed to be inside of the tab page are there (including the hbox
> containing my label and close button).  My question is, how do I use
> TabElem to add pages that contain widgets?  Additionally, how do I
> access widgets inside of the page later on?  I searched the archives,
> and there doesn't seem to be much info on this.  Does anyone know of a
> tutorial that is more extensive than the Gtkmm.org tutorial?  Any help
> would be very appreciated.  I am new to Gtkmm, but am having fun
> learning this library.  Any tips on my code is appreciated too. :)
>
> Thanks in advance,
> Dan
>
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