On 7 Feb 2010, at 13:10, Michael Surette wrote: > Interesting problem. It seems that the boxes are drawn in the > order of > the child array of the scroll widget.
Yes, I think all (?) fltk widget rendering happens in the order of the child arrays, so the only (?) way to control the z-order of the widgets is to control the order they appear in the child arrays. So, to put your widget on top of the z-order, it needs to be last in the array. To achieve this I guess you need to remove it from the scroll, then add it back in - this might get it to the end of the list? I guess this is effectively what Michael's code does, but by manipulating the widget list directly... > So what you have to do is make > the picked up widget the last one in that array. You can do this by > subclassing Fl_Scroll and adding a method to do this. The following > draws heavily from Fl_Scroll::fix_scrollbar_order(). Yup - though manipulating the widget list in-place make me nervous; I can't convince myself that a[i] is always <= a[j] so I'd worry that the ordering could go awry... But it is probably OK! _______________________________________________ fltk mailing list [email protected] http://lists.easysw.com/mailman/listinfo/fltk
