Fabio Bracci wrote: > > Well, the error is as follows: > > > g++ -Wall -ggdb -c GUI-maxtree-panel-widgets.cxx -I/usr/local/include/ > /usr/include/FL/Fl_Group.H: In member function â??void > GUImaxtreePanelWidgets::drawScrollPanel()â??: > /usr/include/FL/Fl_Group.H:56: error: â??virtual void Fl_Group::draw()â?? is > protected > GUI-maxtree-panel-widgets.cxx:649: error: within this context ...
> > Again, I'm interested in having the children of the group to be redrawn, the > complex visualization widgets. > My naive approach is to define a wrapper method in the window calling the > group's draw(), but for some reason it's a protected method, so this doesn't > work. > a) why is draw() a protected method? I can't tell you, why it is protected, IMHO this is not necessary or useful. > b) how to trigger draw()? I'm thinking of a group->hide(); group->show() > sequence, but it seems clumsy to me ... Yes, that's clumsy. But there is help ... I answered your question already in: http://www.fltk.org/newsgroups.php?gfltk.general+v:27435 But beware: Call the draw method only from another draw method. If you need something to be drawn, the only supported way is to call redraw() and return from the callback - or call Fl::flush(), Fl::wait(), or Fl::check(). This way FLTK will call the draw method as soon as possible. Albrecht _______________________________________________ fltk mailing list [email protected] http://lists.easysw.com/mailman/listinfo/fltk
