diff options
Diffstat (limited to 'src/Fl_Scroll.cxx')
| -rw-r--r-- | src/Fl_Scroll.cxx | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/src/Fl_Scroll.cxx b/src/Fl_Scroll.cxx index f218915a8..fd7f4fbae 100644 --- a/src/Fl_Scroll.cxx +++ b/src/Fl_Scroll.cxx @@ -105,6 +105,24 @@ int Fl_Scroll::on_insert(Fl_Widget *candidate, int index) { } /** + Change new position of a child before it is moved. + + Fix new position if the new child is planned to be moved after the scrollbars. + We can assume that the scrollbars are always the last two children! + + Fl_Group calls this when a widget is moved within the list of children. + We return a new index if the widget would be moved after the scrollbars. + + \param oldIndex the current index of the child that will be moved + \param newIndex the new index of the child + \return new index, possibly corrected to avoid last two scrollbar entries + */ +int Fl_Scroll::on_move(int oldIndex, int newIndex) { + // Compensate index for the widget that will be removed before it re-inserted + return on_insert( child(oldIndex), newIndex+1 ) - 1; +} + +/** Removes the widget at \p index from the group and deletes it. This method does nothing if \p index is out of bounds or |