X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fvertical-align-engraver.cc;h=921b35a47113ace9436136ed08664610127af9fc;hb=90e4d7057f3857da049dfda3d130017d4719bd6b;hp=464e7e3df21defc27b8fb59409625949b857ad00;hpb=02ad2d3bb642d9228c4ae69efc71a74bd222575f;p=lilypond.git diff --git a/lily/vertical-align-engraver.cc b/lily/vertical-align-engraver.cc index 464e7e3df2..921b35a471 100644 --- a/lily/vertical-align-engraver.cc +++ b/lily/vertical-align-engraver.cc @@ -1,81 +1,194 @@ /* - vertical-align-grav.cc -- implement Vertical_align_engraver + This file is part of LilyPond, the GNU music typesetter. - source file of the GNU LilyPond music typesetter + Copyright (C) 1997--2015 Han-Wen Nienhuys - (c) 1997--2000 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 "translator-group.hh" -#include "axis-group-engraver.hh" + +#include "context.hh" #include "paper-column.hh" -#include "vertical-align-engraver.hh" -#include "axis-align-spanner.hh" -#include "axis-group-spanner.hh" -#include "span-bar.hh" +#include "align-interface.hh" +#include "axis-group-interface.hh" +#include "engraver.hh" +#include "international.hh" +#include "spanner.hh" +#include "pointer-group-interface.hh" +#include "grob-array.hh" + +#include "translator.icc" + +class Vertical_align_engraver : public Engraver +{ + Spanner *valign_; + bool qualifies (Grob_info) const; + SCM id_to_group_hashtab_; -Vertical_align_engraver::Vertical_align_engraver() +public: + TRANSLATOR_DECLARATIONS (Vertical_align_engraver); + void acknowledge_axis_group (Grob_info); + +protected: + virtual void derived_mark () const; + void process_music (); + virtual void finalize (); + virtual void initialize (); + + bool top_level_; +}; + +void +Vertical_align_engraver::boot () +{ + ADD_ACKNOWLEDGER (Vertical_align_engraver, axis_group); +} + +ADD_TRANSLATOR (Vertical_align_engraver, + /* doc */ + "Catch groups (staves, lyrics lines, etc.) and stack them" + " vertically.", + + /* create */ + "VerticalAlignment ", + + /* read */ + "alignAboveContext " + "alignBelowContext " + "hasAxisGroup ", + + /* write */ + "" + ); + +Vertical_align_engraver::Vertical_align_engraver (Context *c) + : Engraver (c) +{ + valign_ = 0; + id_to_group_hashtab_ = SCM_EOL; + top_level_ = false; +} + +void +Vertical_align_engraver::derived_mark () const { - valign_p_ =0; + scm_gc_mark (id_to_group_hashtab_); } void -Vertical_align_engraver::do_creation_processing() +Vertical_align_engraver::initialize () { - valign_p_ =new Axis_align_spanner; - valign_p_->set_axis (Y_AXIS); - valign_p_->set_elt_property ("stacking-dir", gh_int2scm (DOWN)); - - valign_p_->set_bounds(LEFT,get_staff_info().command_pcol_l ()); - announce_element (Score_element_info (valign_p_ , 0)); + id_to_group_hashtab_ = scm_c_make_hash_table (11); } void -Vertical_align_engraver::do_removal_processing() +Vertical_align_engraver::process_music () { - SCM dist (get_property ("maxVerticalAlign")); - if (gh_number_p(dist)) + if (!valign_ && !scm_is_null (id_to_group_hashtab_)) { - valign_p_->threshold_interval_[BIGGER] = gh_scm2double (dist); + if (to_boolean (get_property ("hasAxisGroup"))) + { + warning (_ ("Ignoring Vertical_align_engraver in VerticalAxisGroup")); + id_to_group_hashtab_ = SCM_EOL; + return; + } + + top_level_ = to_boolean (get_property ("topLevelAlignment")); + + valign_ = make_spanner (top_level_ ? "VerticalAlignment" : "StaffGrouper", SCM_EOL); + valign_->set_bound (LEFT, unsmob (get_property ("currentCommandColumn"))); + Align_interface::set_ordered (valign_); } +} - dist = get_property ("minVerticalAlign"); - if (gh_number_p(dist)) +void +Vertical_align_engraver::finalize () +{ + if (valign_) { - valign_p_->threshold_interval_[SMALLER] = gh_scm2double (dist); + valign_->set_bound (RIGHT, unsmob (get_property ("currentCommandColumn"))); + valign_ = 0; } - - valign_p_->set_bounds(RIGHT,get_staff_info().command_pcol_l ()); - typeset_element (valign_p_); - valign_p_ =0; } - bool -Vertical_align_engraver::qualifies_b (Score_element_info i) const +Vertical_align_engraver::qualifies (Grob_info i) const { - int sz = i.origin_trans_l_arr ((Translator*)this).size() ; - - Axis_group_element * elt = dynamic_cast (i.elem_l_); + int sz = i.origin_contexts ((Translator *)this).size (); - return sz > 1 && elt && elt->axes_[0] == Y_AXIS && !elt->parent_l (Y_AXIS); + return sz > 0 && has_interface (i.grob ()) + && !i.grob ()->get_parent (Y_AXIS) + && !to_boolean (i.grob ()->get_property ("no-alignment")) + && Axis_group_interface::has_axis (i.grob (), Y_AXIS); } void -Vertical_align_engraver::acknowledge_element (Score_element_info i) +Vertical_align_engraver::acknowledge_axis_group (Grob_info i) { - if (qualifies_b (i)) - { - valign_p_->add_element (i.elem_l_); - } - /* - ? huh - */ - else if (dynamic_cast(i.elem_l_) && i.origin_trans_l_arr (this).size ()) + if (scm_is_null (id_to_group_hashtab_)) + return; + + if (top_level_ && qualifies (i)) { - i.elem_l_->add_dependency (valign_p_); - } -} + string id = i.context ()->id_string (); + + scm_hash_set_x (id_to_group_hashtab_, ly_string2scm (id), + i.grob ()->self_scm ()); + + SCM before_id = i.context ()->get_property ("alignAboveContext"); + SCM after_id = i.context ()->get_property ("alignBelowContext"); + + SCM before = scm_hash_ref (id_to_group_hashtab_, before_id, SCM_BOOL_F); + SCM after = scm_hash_ref (id_to_group_hashtab_, after_id, SCM_BOOL_F); + + Grob *before_grob = unsmob (before); + Grob *after_grob = unsmob (after); + Align_interface::add_element (valign_, i.grob ()); + if (before_grob || after_grob) + { + Grob_array *ga = unsmob (valign_->get_object ("elements")); + vector &arr = ga->array_reference (); -ADD_THIS_TRANSLATOR(Vertical_align_engraver); + Grob *added = arr.back (); + arr.pop_back (); + for (vsize i = 0; i < arr.size (); i++) + { + if (arr[i] == before_grob) + { + arr.insert (arr.begin () + i, added); + + /* Only set staff affinity if it already has one. That way we won't + set staff-affinity on things that don't want it (like staves). */ + if (scm_is_number (added->get_property ("staff-affinity"))) + added->set_property ("staff-affinity", scm_from_int (DOWN)); + break; + } + else if (arr[i] == after_grob) + { + arr.insert (arr.begin () + i + 1, added); + if (scm_is_number (added->get_property ("staff-affinity"))) + added->set_property ("staff-affinity", scm_from_int (UP)); + break; + } + } + } + } + else if (qualifies (i)) + { + Pointer_group_interface::add_grob (valign_, ly_symbol2scm ("elements"), i.grob ()); + if (!unsmob (i.grob ()->get_object ("staff-grouper"))) + i.grob ()->set_object ("staff-grouper", valign_->self_scm ()); + } +}