source file of the GNU LilyPond music typesetter
- (c) 2005--2006 Han-Wen Nienhuys <hanwen@xs4all.nl>
+ (c) 2005--2008 Han-Wen Nienhuys <hanwen@xs4all.nl>
*/
#include "paper-column-engraver.hh"
#include "system.hh"
#include "international.hh"
+#include "accidental-placement.hh"
+#include "accidental-interface.hh"
#include "axis-group-interface.hh"
#include "context.hh"
-#include "item.hh"
#include "note-spacing.hh"
#include "paper-column.hh"
#include "pointer-group-interface.hh"
+#include "separation-item.hh"
#include "staff-spacing.hh"
#include "system.hh"
#include "warn.hh"
musical_column_ = 0;
breaks_ = 0;
system_ = 0;
- last_special_barline_column_ = 0;
- last_breakable_column_ = 0;
first_ = true;
}
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"));
- command_column_->set_property ("page-turn-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_);
}
}
break_events_.push_back (ev);
}
+IMPLEMENT_TRANSLATOR_LISTENER (Paper_column_engraver, label);
+void
+Paper_column_engraver::listen_label (Stream_event *ev)
+{
+ label_events_.push_back (ev);
+}
+
void
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)
}
}
-/* return either
- - the last column with a special (ie. not "|" or "") barline
- - the last column
- after the given moment
-*/
-Paper_column*
-Paper_column_engraver::find_turnable_column (Moment after_this)
-{
- if (last_special_barline_column_)
- {
- Moment m = *unsmob_moment (last_special_barline_column_->get_property ("when"));
- if (m >= after_this)
- return last_special_barline_column_;
- }
- if (last_breakable_column_)
- {
- Moment m = *unsmob_moment (last_breakable_column_->get_property ("when"));
- if (m >= after_this)
- return last_breakable_column_;
- }
- return 0;
-}
-
-void
-Paper_column_engraver::revoke_page_turns (Moment after_this, Real new_penalty)
-{
- if (!page_turnable_columns_.size ())
- return;
-
- for (vsize i = page_turnable_columns_.size () - 1; i--;)
- {
- Paper_column *col = page_turnable_columns_[i];
- Moment mom = *unsmob_moment (col->get_property ("when"));
- if (mom >= after_this)
- {
- if (isinf (new_penalty))
- {
- col->del_property ( ly_symbol2scm ("page-turn-permission"));
- page_turnable_columns_.erase (page_turnable_columns_.begin () + i);
- }
- else
- {
- Real prev_pen = robust_scm2double (col->get_property ("page-turn-penalty"), 0);
- if (new_penalty > prev_pen)
- col->set_property ("page-turn-penalty", scm_from_double (new_penalty));
- }
- }
- }
-}
-
void
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);
- }
- }
- items_.clear ();
+ Grob *col = Item::is_non_musical (elem) ? command_column_ : musical_column_;
- if (to_boolean (get_property ("forbidBreak")))
- command_column_->set_property ("line-break-permission", SCM_EOL);
- else if (Paper_column::is_breakable (command_column_))
- {
- breaks_++;
- last_breakable_column_ = command_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 ());
- SCM which_bar = get_property ("whichBar");
- if (scm_is_string (which_bar))
- {
- string bar = ly_scm2string (which_bar);
- if (bar != "" && bar != "|")
- last_special_barline_column_ = command_column_;
- }
-
- if (! (breaks_%8))
- progress_indication ("[" + to_string (breaks_) + "]");
+ 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 ();
- SCM page_br = get_property ("allowPageTurn");
- if (scm_is_pair (page_br) && last_breakable_column_)
+ if (to_boolean (get_property ("forbidBreak"))
+ && breaks_) /* don't honour forbidBreak if it occurs on the first moment of a score */
{
- SCM pen = scm_cdr (page_br);
- Moment *m = unsmob_moment (scm_car (page_br));
- if (m)
+ 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++)
{
- Paper_column *turn = find_turnable_column (*m);
- if (turn)
- {
- turn->set_property ("page-turn-permission", ly_symbol2scm ("allow"));
- turn->set_property ("page-turn-penalty", pen);
- page_turnable_columns_.push_back (turn);
- }
+ 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?"));
}
}
-
- /* The page-turn-engraver is allowed to change its mind and revoke previously-allowed
- page turns (for example if there is a volta repeat where a turn is inconvenient) */
- SCM revokes = get_property ("revokePageTurns");
- if (scm_is_pair (revokes))
+ else if (Paper_column::is_breakable (command_column_))
{
- Moment *start = unsmob_moment (scm_car (revokes));
- Real pen = robust_scm2double (scm_cdr (revokes), infinity_f);
- if (start)
- revoke_page_turns (*start, pen);
+ breaks_++;
+
+ if (! (breaks_%8))
+ progress_indication ("[" + to_string (breaks_) + "]");
}
context ()->get_score_context ()->unset_property (ly_symbol2scm ("forbidBreak"));
- context ()->get_score_context ()->unset_property (ly_symbol2scm ("allowPageTurn"));
- context ()->get_score_context ()->unset_property (ly_symbol2scm ("revokePageTurns"));
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
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 "
- "revokePageTurns "
- ,
+ "forbidBreak ",
+
/* write */
"forbidBreak "
- "allowPageTurn "
- "revokePageTurns "
"currentCommandColumn "
"currentMusicalColumn "
);
projects / lilypond.git / blobdiff