X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fspanner.cc;h=d3fd5a0955dd00df7cf78215f0452623748447c8;hb=72daeab460833e7e46c346a3e377b195674ef9c9;hp=77ee01074e5e1517f1bb8d056ad644a3f7888c9a;hpb=175da222fd01361eb901ba2c55d9b2574126bf41;p=lilypond.git diff --git a/lily/spanner.cc b/lily/spanner.cc index 77ee01074e..d3fd5a0955 100644 --- a/lily/spanner.cc +++ b/lily/spanner.cc @@ -1,20 +1,30 @@ /* - spanner.cc -- implement Spanner + This file is part of LilyPond, the GNU music typesetter. - source file of the GNU LilyPond music typesetter + Copyright (C) 1996--2011 Han-Wen Nienhuys - (c) 1996--2007 Han-Wen Nienhuys + LilyPond is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + LilyPond is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with LilyPond. If not, see . */ -#include "pointer-group-interface.hh" #include "libc-extension.hh" -#include "paper-column.hh" +#include "moment.hh" #include "paper-column.hh" #include "paper-score.hh" +#include "pointer-group-interface.hh" #include "stencil.hh" #include "system.hh" #include "warn.hh" -#include "moment.hh" Grob * Spanner::clone () const @@ -78,9 +88,7 @@ Spanner::do_break_processing () for (int a = X_AXIS; a < NO_AXES; a++) { if (Spanner *parent = dynamic_cast (get_parent ((Axis)a))) - { - parent_rank_slice.intersect (parent->spanned_rank_interval ()); - } + parent_rank_slice.intersect (parent->spanned_rank_interval ()); } for (vsize i = 1; i < break_points.size (); i++) @@ -118,7 +126,6 @@ Spanner::do_break_processing () span->set_bound (RIGHT, bounds[RIGHT]); if (!bounds[LEFT]->get_system () - || !bounds[RIGHT]->get_system () || bounds[LEFT]->get_system () != bounds[RIGHT]->get_system ()) { @@ -178,7 +185,7 @@ Spanner::spanned_time () const Item * Spanner::get_bound (Direction d) const { - return spanned_drul_ [d]; + return spanned_drul_[d]; } /* @@ -191,7 +198,7 @@ Spanner::set_bound (Direction d, Grob *s) Item *i = dynamic_cast (s); if (!i) { - programming_error ("must have Item for spanner bound"); + programming_error ("must have Item for spanner bound of " + name()); return; } @@ -209,7 +216,6 @@ Spanner::set_bound (Direction d, Grob *s) [maybe we should try keeping all columns alive?, and perhaps inherit position from their (non-)musical brother] - */ if (dynamic_cast (i)) Pointer_group_interface::add_grob (i, ly_symbol2scm ("bounded-by-me"), this); @@ -219,14 +225,15 @@ Spanner::Spanner (SCM s) : Grob (s) { break_index_ = 0; - spanned_drul_[LEFT] = 0; - spanned_drul_[RIGHT] = 0; + spanned_drul_.set (0, 0); + pure_property_cache_ = SCM_UNDEFINED; } Spanner::Spanner (Spanner const &s) : Grob (s) { - spanned_drul_[LEFT] = spanned_drul_[RIGHT] = 0; + spanned_drul_.set (0, 0); + pure_property_cache_ = SCM_UNDEFINED; } Real @@ -254,7 +261,7 @@ Spanner::get_system () const Grob * Spanner::find_broken_piece (System *l) const { - vsize idx = binary_search (broken_intos_, (Spanner *)l, Spanner::less); + vsize idx = binary_search (broken_intos_, (Spanner *) l, Spanner::less); if (idx != VPOS) return broken_intos_ [idx]; return 0; @@ -266,7 +273,7 @@ Spanner::broken_neighbor (Direction d) const if (!original_) return 0; - vsize k = broken_spanner_index (this); + vsize k = get_break_index (); Spanner *orig = dynamic_cast (original_); int j = int (k) + d; if (j < 0 || vsize (j) >= orig->broken_intos_.size ()) @@ -322,6 +329,8 @@ Spanner::get_broken_left_end_align () const void Spanner::derived_mark () const { + scm_gc_mark (pure_property_cache_); + Direction d = LEFT; do if (spanned_drul_[d]) @@ -358,11 +367,14 @@ Spanner::set_spacing_rods (SCM smob) { Rod r; Spanner *sp = dynamic_cast (me); - - System *root = get_root_system (me); - vector cols (root->broken_col_range (sp->get_bound (LEFT)->get_column (), - sp->get_bound (RIGHT)->get_column ())); + Drul_array bounds (sp->get_bound (LEFT), + sp->get_bound (RIGHT)); + if (!bounds[LEFT] || !bounds[RIGHT]) + return SCM_UNSPECIFIED; + + vector cols (root->broken_col_range (bounds[LEFT]->get_column (), + bounds[RIGHT]->get_column ())); if (cols.size ()) { @@ -386,15 +398,51 @@ Spanner::set_spacing_rods (SCM smob) return SCM_UNSPECIFIED; } -/* - Return I such that SP == SP->ORIGINAL ()->BROKEN_INTOS_[I]. -*/ -int -broken_spanner_index (Spanner const *sp) +MAKE_SCHEME_CALLBACK (Spanner, calc_normalized_endpoints, 1); +SCM +Spanner::calc_normalized_endpoints (SCM smob) { - Spanner *parent = dynamic_cast (sp->original ()); - /* ugh: casting */ - return find (parent->broken_intos_, (Spanner*) sp) - parent->broken_intos_.begin (); + Spanner *me = unsmob_spanner (smob); + SCM result = SCM_EOL; + + Spanner *orig = dynamic_cast (me->original ()); + + orig = orig ? orig : me; + + if (orig->is_broken ()) + { + Real total_width = 0.0; + vector span_data; + + if (!orig->is_broken ()) + span_data.push_back (orig->spanner_length ()); + else + for (vsize i = 0; i < orig->broken_intos_.size (); i++) + span_data.push_back (orig->broken_intos_[i]->spanner_length ()); + + vector unnormalized_endpoints; + + for (vsize i = 0; i < span_data.size (); i++) + { + unnormalized_endpoints.push_back (Interval (total_width, total_width + span_data[i])); + total_width += span_data[i]; + } + + for (vsize i = 0; i < unnormalized_endpoints.size (); i++) + { + SCM t = ly_interval2scm (1 / total_width * unnormalized_endpoints[i]); + orig->broken_intos_[i]->set_property ("normalized-endpoints", t); + if (me->get_break_index () == i) + result = t; + } + } + else + { + result = scm_cons (scm_from_double (0.0), scm_from_double (1.0)); + orig->set_property ("normalized-endpoints", result); + } + + return result; } Spanner * @@ -409,7 +457,6 @@ Spanner::bounds_width (SCM grob) { Spanner *me = unsmob_spanner (grob); - Grob *common = me->get_bound (LEFT)->common_refpoint (me->get_bound (RIGHT), X_AXIS); Interval w (me->get_bound (LEFT)->relative_coordinate (common, X_AXIS), @@ -420,13 +467,67 @@ Spanner::bounds_width (SCM grob) return ly_interval2scm (w); } -ADD_INTERFACE (Spanner, - "Some objects are horizontally spanned between objects. For\n" - "example, slur, beam, tie, etc. These grobs form a subtype called\n" - "@code{Spanner}. All spanners have two span-points (these must be\n" - "@code{Item} objects), one on the left and one on the right. The left bound is\n" - "also the X-reference point of the spanner.\n", +MAKE_SCHEME_CALLBACK (Spanner, kill_zero_spanned_time, 1); +SCM +Spanner::kill_zero_spanned_time (SCM grob) +{ + Spanner *me = unsmob_spanner (grob); + Interval_t moments = me->spanned_time (); + /* + Remove the line or hairpin at the start of the line. For + piano voice indicators, it makes no sense to have them at + the start of the line. + + I'm not sure what the official rules for glissandi are, but + usually the 2nd note of the glissando is "exact", so when playing + from the start of the line, there is no need to glide. + + From a typographical p.o.v. this makes sense, since the amount of + space left of a note at the start of a line is very small. + + --hwn. + + */ + if (moments.length () == Moment (0, 0)) + me->suicide (); + return SCM_UNSPECIFIED; +} + +SCM +Spanner::get_cached_pure_property (SCM sym, int start, int end) +{ + // The pure property cache is indexed by (name start . end), where name is + // a symbol, and start and end are numbers referring to the starting and + // ending column ranks of the current line. + if (scm_hash_table_p (pure_property_cache_) == SCM_BOOL_F) + return SCM_UNDEFINED; + + SCM key = scm_cons (sym, scm_cons (scm_from_int (start), scm_from_int (end))); + return scm_hash_ref (pure_property_cache_, key, SCM_UNDEFINED); +} + +void +Spanner::cache_pure_property (SCM sym, int start, int end, SCM val) +{ + if (scm_hash_table_p (pure_property_cache_) == SCM_BOOL_F) + pure_property_cache_ = scm_c_make_hash_table (17); + + SCM key = scm_cons (sym, scm_cons (scm_from_int (start), scm_from_int (end))); + scm_hash_set_x (pure_property_cache_, key, val); +} + +ADD_INTERFACE (Spanner, + "Some objects are horizontally spanned between objects. For" + " example, slurs, beams, ties, etc. These grobs form a subtype" + " called @code{Spanner}. All spanners have two span points" + " (these must be @code{Item} objects), one on the left and one" + " on the right. The left bound is also the X@tie{}reference" + " point of the spanner.", + + /* properties */ + "normalized-endpoints " "minimum-length " + "to-barline " );