X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fvertical-align-engraver.cc;h=9a6e3afa30c8e58aff8e92e3168c23d504fa3755;hb=b4af54cb24ef6879771323ee0797862a96be885e;hp=444168570f362b97806f91bdcb8e2e6713331c80;hpb=2804f8f79e01dc606ce067bffda2d966524e6e36;p=lilypond.git diff --git a/lily/vertical-align-engraver.cc b/lily/vertical-align-engraver.cc index 444168570f..9a6e3afa30 100644 --- a/lily/vertical-align-engraver.cc +++ b/lily/vertical-align-engraver.cc @@ -1,74 +1,172 @@ /* - 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--2011 Han-Wen Nienhuys - (c) 1997--2002 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 "context.hh" #include "paper-column.hh" #include "align-interface.hh" #include "span-bar.hh" #include "axis-group-interface.hh" #include "engraver.hh" #include "spanner.hh" +#include "pointer-group-interface.hh" +#include "grob-array.hh" + +#include "translator.icc" class Vertical_align_engraver : public Engraver { - Spanner * valign_p_; - bool qualifies_b (Grob_info) const; + Spanner *valign_; + bool qualifies (Grob_info) const; + SCM id_to_group_hashtab_; + public: - TRANSLATOR_DECLARATIONS(Vertical_align_engraver); + TRANSLATOR_DECLARATIONS (Vertical_align_engraver); + DECLARE_ACKNOWLEDGER (axis_group); + protected: - virtual void acknowledge_grob (Grob_info); - virtual void initialize (); + virtual void derived_mark () const; + void process_music (); virtual void finalize (); + virtual void initialize (); + + bool top_level_; }; +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 ", + + /* write */ + "" + ); + Vertical_align_engraver::Vertical_align_engraver () { - valign_p_ =0; + valign_ = 0; + id_to_group_hashtab_ = SCM_EOL; + top_level_ = false; +} + +void +Vertical_align_engraver::derived_mark () const +{ + scm_gc_mark (id_to_group_hashtab_); } void Vertical_align_engraver::initialize () { - valign_p_ =new Spanner (get_property ("VerticalAlignment")); - valign_p_->set_bound (LEFT,unsmob_grob (get_property ("currentCommandColumn"))); - announce_grob(valign_p_ , SCM_EOL); + id_to_group_hashtab_ = scm_c_make_hash_table (11); } void -Vertical_align_engraver::finalize () +Vertical_align_engraver::process_music () { - valign_p_->set_bound (RIGHT,unsmob_grob (get_property ("currentCommandColumn"))); - typeset_grob (valign_p_); - valign_p_ =0; + if (!valign_) + { + top_level_ = to_boolean (get_property ("topLevelAlignment")); + + valign_ = make_spanner (top_level_ ? "VerticalAlignment" : "StaffGrouper", SCM_EOL); + valign_->set_bound (LEFT, unsmob_grob (get_property ("currentCommandColumn"))); + Align_interface::set_ordered (valign_); + } } +void +Vertical_align_engraver::finalize () +{ + if (valign_) + { + valign_->set_bound (RIGHT, unsmob_grob (get_property ("currentCommandColumn"))); + valign_ = 0; + } +} bool -Vertical_align_engraver::qualifies_b (Grob_info i) const +Vertical_align_engraver::qualifies (Grob_info i) const { - int sz = i.origin_trans_l_arr ((Translator*)this).size () ; + int sz = i.origin_contexts ((Translator *)this).size (); - return sz > 1 && Axis_group_interface::has_interface (i.grob_l_) - && !i.grob_l_->get_parent (Y_AXIS) && Axis_group_interface::axis_b (i.grob_l_, Y_AXIS); + return sz > 0 && Axis_group_interface::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_grob (Grob_info i) +Vertical_align_engraver::acknowledge_axis_group (Grob_info i) { - if (qualifies_b (i)) + if (top_level_ && qualifies (i)) { - Align_interface::add_element (valign_p_,i.grob_l_, get_property ("verticalAlignmentChildCallback")); - } -} + 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_grob (before); + Grob *after_grob = unsmob_grob (after); + Align_interface::add_element (valign_, i.grob ()); + + if (before_grob || after_grob) + { + Grob_array *ga = unsmob_grob_array (valign_->get_object ("elements")); + vector &arr = ga->array_reference (); -ENTER_DESCRIPTION(Vertical_align_engraver, -/* descr */ "Catch Vertical axis groups and stack them.", -/* creats*/ "VerticalAlignment", -/* acks */ "axis-group-interface", -/* reads */ "", -/* write */ ""); + 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); + added->set_property ("staff-affinity", scm_from_int (DOWN)); + break; + } + else if (arr[i] == after_grob) + { + arr.insert (arr.begin () + i + 1, added); + 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_grob (i.grob ()->get_object ("staff-grouper"))) + i.grob ()->set_object ("staff-grouper", valign_->self_scm ()); + } +}