Hi Ian, hi Albrecht, thanks for your proposals. I made the recommended improvements but without any effect. On debugging I found out that the measurement of the topmost Fl_Output widget (calling fl_measure()) sets "0" to my width variable (wi). The measurement of the next widgets is ok. That's why I think - but am not sure - that the reason is to be found in fltk, despite of my faults.
Bye testalucida > > > protected: > > void draw() { > > int wi, he; > > Oops! Check the docs... > > Three issues: > > 1)You must explicitly set "wi" and "he" to zero before you call > fl_measure(), or they will be interpreted as being width/height limits > to wrap to. > Since they appear to be stack variables here, we don't necessarily know > what value they will take... > > 2) You must explicitly set the font that fl_measure() is to use. It does > not necessarily know what the "current" font is, even inside a draw() > context, so you must tell it, or it may pick up whatever the last set > font was (which may or may not be the "correct" font for your widget...) > > 3) I'm not sure, but I think calling resize() inside a draw() method can > get a bit "recursive"... so I'd suggest trying to find a different way > to do that, perhaps. > > > fl_measure( this->value(), wi, he, 0 ); > > resize( x(), y(), wi + 6, h() ); > > Fl_Output::draw(); > > } > > }; > > > > > > SELEX Galileo Ltd > Registered Office: Sigma House, Christopher Martin Road, Basildon, Essex SS= > 14 3EL > A company registered in England & Wales. Company no. 02426132 > ******************************************************************** > This email and any attachments are confidential to the intended > recipient and may also be privileged. If you are not the intended > recipient please delete it from your system and notify the sender. > You should not copy it or use it for any purpose nor disclose or > distribute its contents to any other person. > ******************************************************************** > _______________________________________________ fltk mailing list fltk@easysw.com http://lists.easysw.com/mailman/listinfo/fltk