Asks the Gtk::TreeDragDest to insert a row before the path dest , deriving the contents of the row from selection_data .
If dest is outside the tree so that inserting before it is impossible, false will be returned. Also, false may be returned if the new row is not created for some model-specific reason. Should robustly handle a dest no longer found in the model!
Parameters:
dest
Row to drop in front of.
selection_data
Data to drop.
Returns:
Whether a new row was created before position dest .
Asks the Gtk::TreeDragDest to insert a row before the path dest , deriving the contents of the row from selection_data .
If dest is outside the tree so that inserting before it is impossible, false will be returned. Also, false may be returned if the new row is not created for some model-specific reason. Should robustly handle a dest no longer found in the model!
Parameters:
dest
Row to drop in front of.
selection_data
Data to drop.
Returns:
Whether a new row was created before position dest .