Re: Getting the size of a Gtk::TreeView

[Surya Kiran Gullapalli <skg fluent co in>]

Hi I was also trying to do the same thing, But could not succeed.

Any ideas on how to do this ?


> Hello,
>
> I'm trying to make a druid with Gnome::UI::Druid.
>
> My second page for the druid hold a list containing information concerning
> CORBA Server:
>
> +----------------------------+----------+------+----------------------+
> |Name                        | Activate | Mode | Data                 |
> +----------------------------+----------+------+----------------------+
> ...
> ...
> +---+------------------------+----------+------+----------------------+
>
> This list is inside a scrolled window. But the scrolled window 'cut'
> the list in the middle of the 'Activate' Column
>
>                                   |
> +--------------------------+------|
> |Name                      | Activ|
>                                   |
>
>                                   ^
>                                   |
>                   Border of the   |
>                  ScrolledWindow --+
>
> So I'm trying to resize the ScrolledWindow by calculating the size of the
> first 3 columns size('Ok') + size('Name') + size('Activate') But it does not
> seem to work !
>
> Here What I do:
>
> m_scrolled_window.add( m_tree_view );
> m_scrolled_window.set_policy( Gtk::POLICY_AUTOMATIC ,
> Gtk::POLICY_AUTOMATIC );
>
> pack_start( m_scrolled_window , Gtk::PACK_EXPAND_WIDGET , 5 );
> m_ref_tree_model = Gtk::ListStore::create( m_model_column );
> m_tree_view.set_model( m_ref_tree_model );
>
> ok = Gdk::Pixbuf::create_from_file( "server-ok.png" );
> unknown = Gdk::Pixbuf::create_from_file( "server-unknown.png" );
> not_ok = Gdk::Pixbuf::create_from_file( "server-not-ok.png" );
>
> Gtk::TreeView::Column* = Gtk::manage( new Gtk::TreeView::Column( "Name" ) );
> col->pack_start( m_model_columns.m_icon );
> col->pack_start( m_model_columns.m_name );
> m_tree_view.append_column( *col );
>
> m_tree_view.append_column( "Activate" , m_model_columns.m_activate );
> m_tree_view.append_column( "Mode"     , m_model_columns.m_mode );
> m_tree_view.append_column( "Data"     , m_model_columns.m_data );
>
> // Populating the row of the list
> CORBA::Server::iterator	itr = CORBA::Server::begin();
> while ( itr != CORBA::Server::end() )
> {
>     Gtk::TreeModel::Row row = *(m_ref_tree_model->append());
>     row[m_model_columns.m_icon = unknown;
>     row[m_model_columns.m_name = (*itr)->name();
>     ...
> }
>
> // Here I'm trying to get the size of the 3 first columns
> Gtk::TreeViewColumn* col1 = m_tree_view.get_column(0);
> Gtk::TreeViewColumn* col2 = m_tree_view.get_column(1);
> Gtk::TreeViewColumn* col3 = m_tree_view.get_column(2);
> int width = col1->get_width() + col2->get_width() + col3->get_width();
> m_scolled_window->set_size_request( width , 50 );
>
> // But here the 'width' variable is 0
>
> Could someone help me please ?
>
> Thanks
> Laurent Marzullo
>
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Surya Kiran Gullapalli
Sr. Development Engineer
Fluent India Pvt. Ltd.,
Pune