> I am learning v1.3. I inherited a Fl_Widget, and put 
> fl_rectf(0, 0, w(), h()) in the virtual draw() method, but 
> the rectangle was drawn on the top left of the top level 
> window. And moving Fl_Group will not move its children. All 
> these are peculiar(compared with Qt, Gtk+, etc.), and I took 
> a day to figure this out (not a bug but a feature). Will this 
> change in Fltk3?

Historically, fltk-1 has always used window-relative rather than
parent-relative origins. This often causes confusion, but is easily
addressed (simply query the x(), y() offsets in your draw method then
add those on to your positions...)

For fltk-2 the co-ordinate frame was made parent-relative, as that
seemed the more "normal" choice.

At some point, fltk-3 will offer a choice...


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