diff options
| -rw-r--r-- | src/Fl_Tree.cxx | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/src/Fl_Tree.cxx b/src/Fl_Tree.cxx index a96ed2d6f..c2b29d159 100644 --- a/src/Fl_Tree.cxx +++ b/src/Fl_Tree.cxx @@ -782,13 +782,14 @@ int Fl_Tree::select_only(Fl_Tree_Item *selitem, int docallback) { /// the value will be clipped. So if yoff=100, but scrollbar's max /// is 50, then 50 will be used. /// -/// \param[in] item The item to be shown. Should not be NULL. +/// \param[in] item The item to be shown. If NULL, first() is used. /// \param[in] yoff The pixel offset from the top for the displayed position. /// /// \see show_item_top(), show_item_middle(), show_item_bottom() /// void Fl_Tree::show_item(Fl_Tree_Item *item, int yoff) { - if ( ! item ) return; + item = item ? item : first(); + if (!item) return; int newval = item->y() - y() - yoff + (int)_vscroll->value(); if ( newval < _vscroll->minimum() ) newval = (int)_vscroll->minimum(); if ( newval > _vscroll->maximum() ) newval = (int)_vscroll->maximum(); |