In the Figured_bass_engraver, I have a BassFigureAlignment spanner, where Align_interface::add_element is used to append new figures. However, with extenders turned on, it happens frequently that a new figure needs to be inserted into the spanner at some fixed position (e.g. the beginning).
AFAICS, Align_interface::add_element always appends the newly inserted grob and places it at the bottom. I could not find any way how to insert a grob at a specified position (e.g. at the beginning rathen than at the end, or before another specified grob). AFAICS, Align_interface::add_element basically propagates the new grob to Pointer_group_interface::add_grob, where it is appended to the Grob_array (stored as the 'elements object of the spanner). So, how can I insert a grob at some other position? 1) Shall I simply append it using add_element and then try to extract the 'elements object and manually try to reorder afterwards? 2) Shall I not add any grobs to the spanner, until I know all of the required grobs and their order (which means that the objects will be inserted at a later time step, when all spanners are finished; would this be a problem, or does the current time step not have any effect on the spanner?) 3) Is there any other way to force a given ordering of the grobs inserted into a spanner? Thanks a lot, Reinhold -- ------------------------------------------------------------------ Reinhold Kainhofer, reinh...@kainhofer.com, http://reinhold.kainhofer.com/ * Financial & Actuarial Math., Vienna Univ. of Technology, Austria * http://www.fam.tuwien.ac.at/, DVR: 0005886 * LilyPond, Music typesetting, http://www.lilypond.org _______________________________________________ lilypond-devel mailing list lilypond-devel@gnu.org http://lists.gnu.org/mailman/listinfo/lilypond-devel
