Hi,
> 2) How can I get the dimensions of the visible part? (I tried
> manually adding the Viewport, then calling
> get_window()->get_geometry(), but that gave a value slightly too
> large; that seems to track things unnecessarily and I'm not sure
> exactly how much I need to deduct.)
>
you could do the following (not sure if it is the best solution ;-) )...
get the H- and VAdjustment of your Scrolledwindow:
m_pHAdj=get_hadjustment();
m_pVAdj=get_vadjustment();
connect the changed and value_changed signal
m_pHAdj->signal_value_changed ().connect( sigc::mem_fun(*this,
&ScrolledWindow::on_scrollbar_changed) );
m_pVAdj->signal_value_changed ().connect( sigc::mem_fun(*this,
&ScrolledWindow::on_scrollbar_changed) );
m_pHAdj->signal_changed ().connect( sigc::mem_fun(*this,
&ScrolledWindow::on_scrollbar_changed) );
m_pVAdj->signal_changed ().connect( sigc::mem_fun(*this,
&ScrolledWindow::on_scrollbar_changed) );
void ScrolledWindow::on_scrollbar_changed(){
double value_v, value_h, size_v, size_h;
value_h=m_pHAdj->get_value();
value_v=m_pVAdj->get_value();
size_h =m_pHAdj->get_page_size(); //current dimension
size_v =m_pVAdj->get_page_size(); //current dimension
}
Regards Alex
--
Alexander Gehlert
reply to : [EMAIL PROTECTED]
Raritan Deutschland GmbH, Scheringerstr. 1, 08056 Zwickau
phone +49 375-271349-30 fax +49-375-271349-99
USt-IdNr. DE813094160, HRB 23605 Chemnitz
Geschäftsführer: Dr. Christian Pätz, Swen Anderson
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