Greg Ercolano <[EMAIL PROTECTED]> wrote: > Johannes Hofmann wrote: >> the little example below works with the Group calls commented >> out, but doesn't without (box no longer changes it's size). >> Any ideas, why? > > In your callback, call group->init_sizes() after resizing > the box. So ie. make the group a global like your box > so the callback can access it. > > Quoting the docs on Group::init_sizes() > http://fltk.org/doc-2.0/html/classGroup.html#a27 > > --- snip > > init_sizes() > > Indicate that all the remembered child sizes should be reinitialized. > > The group remembers the initial size of itself and all it's children, > so that the layout can be restored even if the group is resized so > that some children go to zero or negative sizes. Normally these sizes > are calculated the first time layout() is called, though you can do > so by calling sizes() directly. > > Though this makes sense it often results in unexpected behavior when > a program wants to rearrange the child widgets or change the size > of a group to surround a new arrangement of child widgets. The widgets > tend to snap back to a previous size. > > Calling init_sizes() "resets" the sizes array to the current group > and children positions. Actually it just deletes the sizes array, > and it is not recreated until the next time layout is called. > Call this if you manually adjust the sizes of the children, or attempt > to change the size of the group without wanting the children to scale. > > This is automatically done when any child is added or removed. > --- snip
Excellent, that's it. Thanks a lot! Johannes _______________________________________________ fltk mailing list [email protected] http://lists.easysw.com/mailman/listinfo/fltk
