Fl_Group | +----Fl_Pack
This widget was designed to add the functionality of compressing and aligning widgets.
If type() is FL_HORIZONTAL all the children are resized to the height of the Fl_Pack, and are moved next to each other horizontally. If type() is not FL_HORIZONTAL then the children are resized to the width and are stacked below each other. Then the Fl_Pack resizes itself to surround the child widgets.
Creates a new Fl_Pack widget using the given position, size, and label string. The default boxtype is FL_NO_BOX.
The destructor also deletes all the children. This allows a whole tree to be deleted at once, without having to keep a pointer to all the children in the user code. A kludge has been done so the Fl_Pack and all of it's children can be automatic (local) variables, but you must declare the Fl_Packfirst, so that it is destroyed last.
Gets or sets the number of extra pixels of blank space that are added between the children.