On 20 Apr 2013, at 22:04, dirac wrote: > I'm building a stack of horizontal widgets, like that (I hope the ASCII > art works): > > +---Fl_tile-------------------+ > | +-------------------------+ | > | | widget 0 | | > | +-------------------------+ | > | +-------------------------+ | > | | widget 1 | | > | +-------------------------+ | > | +-------------------------+ | > | | widget 2 | | > | +-------------------------+ | > |+----------------------------+ > > I would like to make each widget vertically resizable, so an Fl_tile > seems a good choice for a container.
Though I suspect that initial reaction may be misleading... > Unfortunately I've noticed that Fl_tile shrinks the other widgets: for > example if I enlarge Widget 0 completely to the very bottom, "widget 1" > and "widget 2" disappear, i.e. their height becomes zero. Yup, the issue here is (I think) that Fl_Tile, like many container widgets, is striving to maintain a fixed outer dimension, so as "widget 1" grows, the other widgets in the container need to shrink... I guess that what you want is a container widget that will grow/shrink as it's children grow/shrink. And that's not quite the same thing as an Fl_Tile. > > My question: is there a way to extend Fl_tile so that it shifts the > other widgets below Widget 0, instead of shrink them? Possibly Fl_tile > should also expand itself vertically to make room for the other widgets. Yes, though Fl_Tile may be the wrong place to start. I'd probably just start form an Fl_Group then modify the resize behaviour to match the changing sizes of the groups children... Hmm, now, I seem to recall that Jason Bryan's "FLU" widget extensions for fltk had something like that - they would be worth a look. OK; his pages at OSC.edu appear to be down, but there's a mirror here that still seems to work: http://src.gnu-darwin.org/ports/x11-toolkits/flu/work/FLU_2.14/ Maybe his "collapsible group" widget might give you some starting hints? _______________________________________________ fltk mailing list fltk@easysw.com http://lists.easysw.com/mailman/listinfo/fltk
