X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Frest-collision.cc;h=e0a494c0c5431fc9440850372c965bbb35303587;hb=41e45dd730c075e78065dfa78e5e54be664d905e;hp=1bd6f7924e5d1c34713d3ce519d8e31d7dc360e6;hpb=b37e3f652677ae0298423db9fa0e552e5fce0c92;p=lilypond.git diff --git a/lily/rest-collision.cc b/lily/rest-collision.cc index 1bd6f7924e..e0a494c0c5 100644 --- a/lily/rest-collision.cc +++ b/lily/rest-collision.cc @@ -3,7 +3,7 @@ source file of the GNU LilyPond music typesetter - (c) 1997--2006 Han-Wen Nienhuys + (c) 1997--2007 Han-Wen Nienhuys */ #include "rest-collision.hh" @@ -21,6 +21,7 @@ using namespace std; #include "rhythmic-head.hh" #include "staff-symbol-referencer.hh" #include "stem.hh" +#include "grob.hh" #include "warn.hh" MAKE_SCHEME_CALLBACK (Rest_collision, force_shift_callback, 1); @@ -40,7 +41,7 @@ Rest_collision::force_shift_callback (SCM smob) return scm_from_double (0.0); } -MAKE_SCHEME_CALLBACK (Rest_collision, force_shift_callback_rest, 2); +MAKE_SCHEME_CALLBACK_WITH_OPTARGS (Rest_collision, force_shift_callback_rest, 2, 1, ""); SCM Rest_collision::force_shift_callback_rest (SCM rest, SCM offset) { @@ -51,7 +52,8 @@ Rest_collision::force_shift_callback_rest (SCM rest, SCM offset) translate REST; we need the result of this translation later on, while the offset probably still is 0/calculation-in-progress. */ - rest_grob->translate_axis (scm_to_double (offset), Y_AXIS); + if (scm_is_number (offset)) + rest_grob->translate_axis (scm_to_double (offset), Y_AXIS); if (Note_column::has_interface (parent)) force_shift_callback (parent->self_scm ()); @@ -85,32 +87,26 @@ Rest_collision::add_column (Grob *me, Grob *p) TODO: look at horizontal-shift to determine ordering between rests for more than two voices. */ -MAKE_SCHEME_CALLBACK(Rest_collision, calc_positioning_done, 1); +MAKE_SCHEME_CALLBACK (Rest_collision, calc_positioning_done, 1); SCM Rest_collision::calc_positioning_done (SCM smob) { Grob *me = unsmob_grob (smob); + + me->set_property ("positioning-done", SCM_BOOL_T); + extract_grob_set (me, "elements", elts); - Link_array rests; - Link_array notes; + vector rests; + vector notes; - for (int i = 0; i < elts.size (); i++) + for (vsize i = 0; i < elts.size (); i++) { Grob *e = elts[i]; if (unsmob_grob (e->get_object ("rest"))) - { - /* - Ignore rests under beam. - */ - Grob *st = unsmob_grob (e->get_object ("stem")); - if (st && unsmob_grob (st->get_object ("beam"))) - continue; - - rests.push (e); - } + rests.push_back (e); else - notes.push (e); + notes.push_back (e); } /* @@ -124,7 +120,7 @@ Rest_collision::calc_positioning_done (SCM smob) no partners to collide with */ if (rests.size () + notes.size () < 2) - return SCM_UNSPECIFIED; + return SCM_BOOL_T; Real staff_space = Staff_symbol_referencer::staff_space (me); /* @@ -137,21 +133,21 @@ Rest_collision::calc_positioning_done (SCM smob) This is incomplete: in case of an uneven number of rests, the center one should be centered on the staff. */ - Drul_array > ordered_rests; - for (int i = 0; i < rests.size (); i++) + Drul_array > ordered_rests; + for (vsize i = 0; i < rests.size (); i++) { Grob *r = Note_column::get_rest (rests[i]); Direction d = get_grob_direction (r); if (d) - ordered_rests[d].push (rests[i]); + ordered_rests[d].push_back (rests[i]); else - rests[d]->warning (_ ("can't resolve rest collision: rest direction not set")); + rests[d]->warning (_ ("cannot resolve rest collision: rest direction not set")); } Direction d = LEFT; do - ordered_rests[d].sort (Note_column::shift_compare); + vector_sort (ordered_rests[d], Note_column::shift_less); while (flip (&d) != LEFT) ; @@ -162,7 +158,7 @@ Rest_collision::calc_positioning_done (SCM smob) if (ordered_rests[-d].size () > 1) ordered_rests[-d][0]->warning (_ ("too many colliding rests")); - return SCM_UNSPECIFIED; + return SCM_BOOL_T; } } while (flip (&d) != LEFT); @@ -171,23 +167,23 @@ Rest_collision::calc_positioning_done (SCM smob) common = common_refpoint_of_array (ordered_rests[UP], common, Y_AXIS); Real diff - = (ordered_rests[DOWN].top ()->extent (common, Y_AXIS)[UP] - - ordered_rests[UP].top ()->extent (common, Y_AXIS)[DOWN]) / staff_space; + = (ordered_rests[DOWN].back ()->extent (common, Y_AXIS)[UP] + - ordered_rests[UP].back ()->extent (common, Y_AXIS)[DOWN]) / staff_space; if (diff > 0) { int amount_down = (int) ceil (diff / 2); diff -= amount_down; - Note_column::translate_rests (ordered_rests[DOWN].top (), + Note_column::translate_rests (ordered_rests[DOWN].back (), -2 * amount_down); if (diff > 0) - Note_column::translate_rests (ordered_rests[UP].top (), + Note_column::translate_rests (ordered_rests[UP].back (), 2 * int (ceil (diff))); } do { - for (int i = ordered_rests[d].size () -1; i-- > 0;) + for (vsize i = ordered_rests[d].size () -1; i-- > 0;) { Real last_y = ordered_rests[d][i + 1]->extent (common, Y_AXIS)[d]; Real y = ordered_rests[d][i]->extent (common, Y_AXIS)[-d]; @@ -209,32 +205,50 @@ Rest_collision::calc_positioning_done (SCM smob) Grob *rcol = 0; Direction dir = CENTER; - for (int i = rests.size (); !rcol && i--;) + for (vsize i = rests.size (); !rcol && i--;) if (Note_column::dir (rests[i])) { - dir = Note_column::dir (rests[i]); rcol = rests[i]; + dir = Note_column::dir (rcol); } if (!rcol) - return SCM_UNSPECIFIED; + return SCM_BOOL_T; + Grob *rest = Note_column::get_rest (rcol); Grob *common = common_refpoint_of_array (notes, rcol, Y_AXIS); Interval restdim = rcol->extent (common, Y_AXIS); if (restdim.is_empty ()) - return SCM_UNSPECIFIED; + return SCM_BOOL_T; Real staff_space = Staff_symbol_referencer::staff_space (rcol); Real minimum_dist = robust_scm2double (me->get_property ("minimum-distance"), 1.0) * staff_space; Interval notedim; - for (int i = 0; i < notes.size (); i++) - notedim.unite (notes[i]->extent (common, Y_AXIS)); - - Real dist - = minimum_dist + dir * max (notedim[dir] - restdim[-dir], 0.0); + for (vsize i = 0; i < notes.size (); i++) + { + if (Note_column::dir (notes[i]) == -dir) + { + /* try not to look at the stem, as looking at a beamed + note may trigger beam positioning prematurely. + + This happens with dotted rests, which need Y + positioning to compute X-positioning. + */ + Grob *head = Note_column::first_head (notes[i]); + if (head) + notedim.unite (head->extent (common, Y_AXIS)); + else + programming_error ("Note_column without first_head()"); + } + else + notedim.unite (notes[i]->extent (common, Y_AXIS)); + } + Real y = dir * max (0.0, + -dir * restdim[-dir] + dir * notedim[dir] + minimum_dist); + int stafflines = Staff_symbol_referencer::line_count (me); if (!stafflines) { @@ -243,23 +257,27 @@ Rest_collision::calc_positioning_done (SCM smob) } // move discretely by half spaces. - int discrete_dist = int (ceil (dist / (0.5 * staff_space))); + int discrete_y = dir * int (ceil (y / (0.5 * dir * staff_space))); // move by whole spaces inside the staff. - if (discrete_dist < stafflines + 1) - discrete_dist = int (ceil (discrete_dist / 2.0) * 2.0); + if (fabs (Staff_symbol_referencer::get_position (rest) + + discrete_y) < stafflines + 1) + { + discrete_y = dir * int (ceil (dir * discrete_y / 2.0) * 2.0); + } - Note_column::translate_rests (rcol, dir * discrete_dist); + Note_column::translate_rests (rcol, discrete_y); } - return SCM_UNSPECIFIED; + return SCM_BOOL_T; } -ADD_INTERFACE (Rest_collision, "rest-collision-interface", - "Move around ordinary rests (not multi-measure-rests) to avoid " - "conflicts.", +ADD_INTERFACE (Rest_collision, + "Move around ordinary rests (not multi-measure-rests) to avoid" + " conflicts.", /* properties */ "minimum-distance " "positioning-done " - "elements"); + "elements " + );