/*
- coherent-ligature-engraver.cc -- implement Coherent_ligature_engraver
+ This file is part of LilyPond, the GNU music typesetter.
- source file of the GNU LilyPond music typesetter
+ Copyright (C) 2003--2014 Juergen Reuter <reuter@ipd.uka.de>
- (c) 2003--2005 Juergen Reuter <reuter@ipd.uka.de>
+ 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 <http://www.gnu.org/licenses/>.
*/
#include "coherent-ligature-engraver.hh"
#include "warn.hh"
-#include "staff-symbol-referencer.hh"
-#include "spanner.hh"
#include "paper-column.hh"
#include "pitch.hh"
#include "pointer-group-interface.hh"
+#include "spanner.hh"
+#include "staff-symbol-referencer.hh"
+#include "stream-event.hh"
/*
* This abstract class serves as common superclass for all ligature
*
* - delegate actual creation of ligature to concrete subclass,
*
- * - collect all accidentals that occur within the ligature and put
- * them at the left side of the ligature (TODO; see function
- * collect_accidentals ()),
+ * - except in Kievan notation, collect all accidentals that occur
+ * within the ligature and put them at the left side of the ligature
+ * (TODO; see function collect_accidentals ()),
*
* - collapse superflous space after each ligature (TODO).
*
* Concrete subclasses must implement function build_ligature (Spanner
- * *, Array<Grob_info>). This function is responsible for actually
+ * *, vector<Grob_info>). This function is responsible for actually
* building the ligature by transforming the array of noteheads.
*
* Currently, there are two subclasses: Gregorian_ligature_engraver
* example, Ligature_bracket_engraver does not share any of this code.
*/
-/*
- * TODO: Let superflous space after each ligature collapse. The
- * following code should help in doing so (though it does not yet
- * fully work). Just put the following code into
- * Spacing_spanner::do_measure (). I put it temporarily here as memo
- * until it really works and I also get Han-Wen's/Jan's permission to
- * add it to the spacing spanner code.
- */
-#if 0 // experimental code to collapse spacing after ligature
-SCM incr_scm = lc->get_property ("forced-spacing");
-if (incr_scm != SCM_EOL) /* (Paper_column::is_musical (l)) */
- {
- me->warning (_f ("gotcha: ptr=%ul", lc));//debug
- ly_display_scm (lc->self_scm ());
- Real distance;
- if (incr_scm != SCM_EOL)
- {
- distance = scm_to_double (incr_scm);
- }
- else
- {
- me->warning (_ ("distance undefined, assuming 0.1"));
- distance = 0.1;
- }
- me->warning (_f ("distance=%f", distance));//debug
- Real inverse_strength = 1.0;
- Spaceable_grob::add_spring (lc, rc, distance, inverse_strength);
- if (Item *rb = r->find_prebroken_piece (LEFT))
- Spaceable_grob::add_spring (lc, rb, distance, inverse_strength);
-
- continue;
- }
-#endif
-
-Coherent_ligature_engraver::Coherent_ligature_engraver ()
-{
-}
-
/*
* TODO: move this function to class Item?
*/
void
-Coherent_ligature_engraver::get_set_column (Item *item, Paper_column *column)
+Coherent_ligature_engraver::move_related_items_to_column
+(Item *item, Paper_column *target_column, Real offset)
{
- Item *parent = dynamic_cast<Item *> (item->get_parent (X_AXIS));
- if (!parent)
- {
- programming_error ("failed tweaking paper column in ligature");
- return;
- }
-
- String name = parent->name ();
- if (!String::compare (name, "PaperColumn"))
+ Paper_column *source_column = item->get_column ();
+ Grob *staff_symbol = Staff_symbol_referencer::get_staff_symbol (item);
+ extract_item_set (source_column, "elements", elements);
+ for (vsize i = elements.size (); i--;)
{
- // Change column not only for targeted item (NoteColumn), but
- // also for all associated grobs (NoteSpacing, SeparationItem).
- Grob *sl = Staff_symbol_referencer::get_staff_symbol (item);
-
- extract_item_set (parent, "elements", elements);
-
- for (int i = elements.size (); i--;)
- {
- Item *sibling = elements[i];
- if ((sibling)
- && (Staff_symbol_referencer::get_staff_symbol (sibling) == sl))
- {
-#if 0 // experimental code to collapse spacing after ligature
- Grob *sibling_parent = sibling->get_parent (X_AXIS);
- sibling_parent->warning (_f ("Coherent_ligature_engraver: "
- "setting `spacing-increment="
- "0.01': ptr=%ul", parent));
- sibling_parent->set_property ("forced-spacing",
- scm_make_real (0.01));
+ Item *sibling = elements[i];
+ if (!sibling)
+ // should not occur, but who knows... -jr
+ continue;
+
+ if (Staff_symbol_referencer::get_staff_symbol (sibling) != staff_symbol)
+ // sibling is from a staff different than that of the item of
+ // interest
+ continue;
+
+#if 0 /* experimental code to collapse spacing after ligature */
+ Grob *sibling_parent = sibling->get_parent (X_AXIS);
+ sibling_parent->warning (_f ("Coherent_ligature_engraver: "
+ "setting `spacing-increment="
+ "0.01': ptr=%ul", parent));
+ sibling_parent->set_property ("forced-spacing",
+ scm_from_double (0.01));
#endif
- sibling->set_parent (column, X_AXIS);
- }
- }
- }
- else
- {
- get_set_column (parent, column);
+
+ sibling->set_parent (target_column, X_AXIS);
+ sibling->translate_axis (offset, X_AXIS);
}
}
* occurs within the broken ligatures any more.
*/
void
-Coherent_ligature_engraver::collect_accidentals (Spanner *, Array<Grob_info>)
+Coherent_ligature_engraver::collect_accidentals (Spanner *,
+ vector<Grob_info> const &)
{
/* TODO */
+ /* NOTE: if implementing such a function, note that in Kievan notation,
+ * the B-flat accidental should not be "collected", but rather prints
+ * immediately before the note head as usual. */
}
void
-compute_delta_pitches (Array<Grob_info> primitives)
+compute_delta_pitches (vector<Grob_info> const &primitives)
{
int prev_pitch = 0;
int delta_pitch = 0;
Item *prev_primitive = 0, *primitive = 0;
- for (int i = 0; i < primitives.size (); i++)
+ for (vsize i = 0; i < primitives.size (); i++)
{
primitive = dynamic_cast<Item *> (primitives[i].grob ());
- Music *music_cause = primitives[i].music_cause ();
+ Stream_event *cause = primitives[i].event_cause ();
int pitch
- = unsmob_pitch (music_cause->get_property ("pitch"))->steps ();
+ = unsmob_pitch (cause->get_property ("pitch"))->steps ();
if (prev_primitive)
- {
- delta_pitch = pitch - prev_pitch;
- prev_primitive->set_property ("delta-pitch",
- scm_int2num (delta_pitch));
- }
+ {
+ delta_pitch = pitch - prev_pitch;
+ prev_primitive->set_property ("delta-position",
+ scm_from_int (delta_pitch));
+ }
prev_pitch = pitch;
prev_primitive = primitive;
}
- primitive->set_property ("delta-pitch", scm_int2num (0));
-}
-
-void
-Coherent_ligature_engraver::build_ligature (Spanner *, Array<Grob_info>)
-{
- programming_error ("Coherent_ligature_engraver::build_ligature (): "
- "this is an abstract method that should not be called, "
- "but overridden by a subclass");
+ primitive->set_property ("delta-position", scm_from_int (0));
}
void
Coherent_ligature_engraver::typeset_ligature (Spanner *ligature,
- Array<Grob_info> primitives)
+ vector<Grob_info> const &primitives)
{
// compute some commonly needed context info stored as grob
// properties
collect_accidentals (ligature, primitives);
}
-ADD_TRANSLATOR (Coherent_ligature_engraver,
- /* descr */ "This is an abstract class. Subclasses such as Gregorian_ligature_engraver handle ligatures by glueing special ligature heads together.",
- /* creats*/ "",
- /* accepts */ "ligature-event",
- /* acks */ "note-head-interface rest-interface",
- /* reads */ "",
- /* write */ "");
+// no ADD_ACKNOWLEDGER / ADD_ACKNOWLEDGER / ADD_TRANSLATOR macro calls
+// since this class is abstract
projects / lilypond.git / blobdiff