X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fpaper-column-engraver.cc;h=df3723fb79dd327ae318666e2fba568bc00360b8;hb=5b4b0d6e9a197e8f9eb085b7c2ad78b8be3e5cfc;hp=b6f249e9af0d623392838fe571e120f3ed8c3a65;hpb=e0aab46ee287f06765b982c49fd0491ab033fce7;p=lilypond.git diff --git a/lily/paper-column-engraver.cc b/lily/paper-column-engraver.cc index b6f249e9af..df3723fb79 100644 --- a/lily/paper-column-engraver.cc +++ b/lily/paper-column-engraver.cc @@ -3,18 +3,22 @@ source file of the GNU LilyPond music typesetter - (c) 2005--2006 Han-Wen Nienhuys + (c) 2005--2008 Han-Wen Nienhuys */ #include "paper-column-engraver.hh" #include "system.hh" -#include "item.hh" -#include "paper-column.hh" -#include "staff-spacing.hh" +#include "international.hh" +#include "accidental-placement.hh" +#include "accidental-interface.hh" +#include "axis-group-interface.hh" +#include "context.hh" #include "note-spacing.hh" +#include "paper-column.hh" #include "pointer-group-interface.hh" -#include "context.hh" -#include "axis-group-interface.hh" +#include "separation-item.hh" +#include "staff-spacing.hh" +#include "system.hh" #include "warn.hh" #include "translator.icc" @@ -27,19 +31,18 @@ Paper_column_engraver::Paper_column_engraver () breaks_ = 0; system_ = 0; first_ = true; - last_breakable_column_ = 0; - last_breakable_moment_ = Moment (-1); } void Paper_column_engraver::finalize () { - if ((breaks_ % 8)) + if (! (breaks_ % 8)) progress_indication ("[" + to_string (breaks_) + "]"); if (command_column_) { - command_column_->set_property ("line-break-permission", ly_symbol2scm ("allow")); + if (!scm_is_symbol (command_column_->get_property ("line-break-permission"))) + command_column_->set_property ("line-break-permission", ly_symbol2scm ("allow")); system_->set_bound (RIGHT, command_column_); } } @@ -84,6 +87,7 @@ Paper_column_engraver::acknowledge_staff_spacing (Grob_info gi) ly_symbol2scm ("spacing-wishes"), gi.grob ()); } + void Paper_column_engraver::acknowledge_note_spacing (Grob_info gi) { @@ -108,12 +112,18 @@ Paper_column_engraver::set_columns (Paper_column *new_command, system_->add_column (musical_column_); } -bool -Paper_column_engraver::try_music (Music *m) +IMPLEMENT_TRANSLATOR_LISTENER (Paper_column_engraver, break); +void +Paper_column_engraver::listen_break (Stream_event *ev) { - break_events_.push_back (m); + break_events_.push_back (ev); +} - return true; +IMPLEMENT_TRANSLATOR_LISTENER (Paper_column_engraver, label); +void +Paper_column_engraver::listen_label (Stream_event *ev) +{ + label_events_.push_back (ev); } void @@ -122,18 +132,17 @@ Paper_column_engraver::process_music () for (vsize i = 0; i < break_events_.size (); i++) { string prefix; - SCM name = break_events_[i]->get_property ("name"); - if (name == ly_symbol2scm ("LineBreakEvent")) - prefix = "line-break"; - else if (name == ly_symbol2scm ("PageBreakEvent")) - prefix = "page-break"; - else if (name == ly_symbol2scm ("PageTurnEvent")) - prefix = "page-turn"; + SCM name_sym = break_events_[i]->get_property ("class"); + string name = ly_scm2string (scm_symbol_to_string (name_sym)); + size_t end = name.rfind ("-event"); + if (end) + prefix = name.substr (0, end); else { programming_error ("Paper_column_engraver doesn't know about this break-event"); return; } + string perm_str = prefix + "-permission"; string pen_str = prefix + "-penalty"; @@ -151,11 +160,18 @@ Paper_column_engraver::process_music () command_column_->set_property (perm_str.c_str (), perm); } + for (vsize i = 0 ; i < label_events_.size () ; i ++) + { + SCM label = label_events_[i]->get_property ("page-label"); + SCM labels = command_column_->get_property ("labels"); + command_column_->set_property ("labels", scm_cons (label, labels)); + } + bool start_of_measure = (last_moment_.main_part_ != now_mom ().main_part_ && !measure_position (context ()).main_part_); /* - We can't do this in start_translation_timestep(), since time sig + We can't do this in start_translation_timestep (), since time sig changes won't have happened by then. */ if (start_of_measure) @@ -179,43 +195,58 @@ Paper_column_engraver::stop_translation_timestep () for (vsize i = 0; i < items_.size (); i++) { Item *elem = items_[i]; - if (!elem->get_parent (X_AXIS) - || !unsmob_grob (elem->get_object ("axis-group-parent-X"))) - { - bool br = Item::is_non_musical (elem); - Axis_group_interface::add_element (br ? command_column_ : musical_column_, elem); - } + Grob *col = Item::is_non_musical (elem) ? command_column_ : musical_column_; + + if (!elem->get_parent (X_AXIS)) + elem->set_parent (col, X_AXIS); + if (!unsmob_grob (elem->get_object ("axis-group-parent-X"))) + elem->set_object ("axis-group-parent-X", col->self_scm ()); + + if (Accidental_placement::has_interface (elem)) + Separation_item::add_conditional_item (col, elem); + else if (!Accidental_interface::has_interface (elem)) + Separation_item::add_item (col, elem); } items_.clear (); - if (to_boolean (get_property ("forbidBreak"))) - command_column_->set_property ("line-break-permission", SCM_EOL); + if (to_boolean (get_property ("forbidBreak")) + && breaks_) /* don't honour forbidBreak if it occurs on the first moment of a score */ + { + command_column_->set_property ("page-break-permission", SCM_EOL); + command_column_->set_property ("line-break-permission", SCM_EOL); + for (vsize i = 0; i < break_events_.size (); i++) + { + SCM perm = break_events_[i]->get_property ("break-permission"); + if (perm == ly_symbol2scm ("force") || perm == ly_symbol2scm ("allow")) + warning (_ ("forced break was overridden by some other event, " + "should you be using bar checks?")); + } + } else if (Paper_column::is_breakable (command_column_)) { breaks_++; - last_breakable_column_ = command_column_; - last_breakable_moment_ = now_mom (); + if (! (breaks_%8)) progress_indication ("[" + to_string (breaks_) + "]"); } - SCM page_br = get_property ("allowPageTurn"); - if (scm_is_pair (page_br) && last_breakable_moment_ >= Rational (0)) - { - SCM pen = scm_cdr (page_br); - Moment *m = unsmob_moment (scm_car (page_br)); - if (m && scm_is_number (pen) && *m <= last_breakable_moment_) - { - last_breakable_column_->set_property ("page-turn-permission", ly_symbol2scm ("allow")); - last_breakable_column_->set_property ("page-turn-penalty", pen); - } - } - context ()->get_score_context ()->unset_property (ly_symbol2scm ("forbidBreak")); - context ()->get_score_context ()->unset_property (ly_symbol2scm ("allowPageTurn")); first_ = false; break_events_.clear (); + label_events_.clear (); + + SCM mpos = get_property ("measurePosition"); + SCM barnum = get_property ("internalBarNumber"); + if (unsmob_moment (mpos) + && scm_is_integer (barnum)) + { + SCM where = scm_cons (barnum, + mpos); + + command_column_->set_property ("rhythmic-location", where); + musical_column_->set_property ("rhythmic-location", where); + } } void @@ -233,25 +264,27 @@ ADD_ACKNOWLEDGER (Paper_column_engraver, note_spacing); ADD_ACKNOWLEDGER (Paper_column_engraver, staff_spacing); ADD_TRANSLATOR (Paper_column_engraver, - /* doc */ "Takes care of generating columns." - "\n\n " - "This engraver decides whether a column is breakable. The default is " - "that a column is always breakable. However, every Bar_engraver " - "that does not have a barline at a certain point will set forbidBreaks " - "in the score context to stop linebreaks. In practice, this " - "means that you can make a breakpoint by creating a barline (assuming " - "that there are no beams or notes that prevent a breakpoint.) ", + /* doc */ + "Take care of generating columns.\n" + "\n" + "This engraver decides whether a column is breakable. The" + " default is that a column is always breakable. However," + " every @code{Bar_engraver} that does not have a barline at a" + " certain point will set @code{forbidBreaks} in the score" + " context to stop line breaks. In practice, this means that" + " you can make a break point by creating a bar line (assuming" + " that there are no beams or notes that prevent a break" + " point).", /* create */ "PaperColumn " - "NonMusicalPaperColumn", - - /* accept */ "break-event", + "NonMusicalPaperColumn ", + /* read */ - "forbidBreak " - "allowPageTurn", + "forbidBreak ", + /* write */ "forbidBreak " - "allowPageTurn " "currentCommandColumn " - "currentMusicalColumn"); + "currentMusicalColumn " + );