source file of the GNU LilyPond music typesetter
- (c) 1997 Han-Wen Nienhuys <hanwen@stack.nl>
+ (c) 1997--2008 Han-Wen Nienhuys <hanwen@xs4all.nl>
*/
#include "note-column.hh"
-#include "script.hh"
+
+#include <cmath> // ceil
+using namespace std;
+
+#include "accidental-placement.hh"
+#include "axis-group-interface.hh"
+#include "directional-element-interface.hh"
+#include "international.hh"
+#include "item.hh"
#include "note-head.hh"
+#include "output-def.hh"
+#include "pointer-group-interface.hh"
+#include "rest.hh"
+#include "staff-symbol-referencer.hh"
#include "stem.hh"
+#include "warn.hh"
+
+/*
+ TODO: figure out if we can prune this class. This is just an
+ annoying layer between (rest)collision & (note-head + stem)
+*/
+
+bool
+Note_column::has_rests (Grob *me)
+{
+ return unsmob_grob (me->get_object ("rest"));
+}
+
+bool
+Note_column::shift_less (Grob *const &p1, Grob *const &p2)
+{
+ SCM s1 = p1->get_property ("horizontal-shift");
+ SCM s2 = p2->get_property ("horizontal-shift");
+
+ int h1 = (scm_is_number (s1)) ? scm_to_int (s1) : 0;
+ int h2 = (scm_is_number (s2)) ? scm_to_int (s2) : 0;
+ return h1 < h2;
+}
+
+Item *
+Note_column::get_stem (Grob *me)
+{
+ SCM s = me->get_object ("stem");
+ return unsmob_item (s);
+}
+
+Slice
+Note_column::head_positions_interval (Grob *me)
+{
+ Slice iv;
-IMPLEMENT_STATIC_NAME(Note_column);
-IMPLEMENT_IS_TYPE_B1(Note_column,Head_column);
+ iv.set_empty ();
+
+ extract_grob_set (me, "note-heads", heads);
+ for (vsize i = 0; i < heads.size (); i++)
+ {
+ Grob *se = heads[i];
+
+ int j = Staff_symbol_referencer::get_rounded_position (se);
+ iv.unite (Slice (j, j));
+ }
+ return iv;
+}
+
+Direction
+Note_column::dir (Grob *me)
+{
+ Grob *stem = unsmob_grob (me->get_object ("stem"));
+ if (stem && Stem::has_interface (stem))
+ return get_grob_direction (stem);
+ else
+ {
+ extract_grob_set (me, "note-heads", heads);
+ if (heads.size ())
+ return (Direction)sign (head_positions_interval (me).center ());
+ }
+
+ programming_error ("note column without heads and stem");
+ return CENTER;
+}
void
-Note_column::set(Stem*s)
+Note_column::set_stem (Grob *me, Grob *stem)
{
- stem_l_ = s;
- add_support(s);
+ me->set_object ("stem", stem->self_scm ());
+ Axis_group_interface::add_element (me, stem);
}
-Note_column::Note_column()
+Grob *
+Note_column::get_rest (Grob *me)
{
- h_shift_b_ =false;
+ return unsmob_grob (me->get_object ("rest"));
}
void
-Note_column::sort()
+Note_column::add_head (Grob *me, Grob *h)
{
- head_l_arr_.sort( Note_head::compare);
+ bool both = false;
+ if (Rest::has_interface (h))
+ {
+ extract_grob_set (me, "note-heads", heads);
+ if (heads.size ())
+ both = true;
+ else
+ me->set_object ("rest", h->self_scm ());
+ }
+ else if (Note_head::has_interface (h))
+ {
+ if (unsmob_grob (me->get_object ("rest")))
+ both = true;
+ Pointer_group_interface::add_grob (me, ly_symbol2scm ("note-heads"), h);
+ }
+
+ if (both)
+ me->warning (_ ("cannot have note heads and rests together on a stem"));
+ else
+ Axis_group_interface::add_element (me, h);
}
-
-Interval_t<int>
-Note_column::head_positions_interval()const
+
+/**
+ translate the rest symbols vertically by amount DY, but only if
+ they have no staff-position set.
+*/
+void
+Note_column::translate_rests (Grob *me, int dy)
{
- ((Note_column*)this)->sort();
- return Interval_t<int> ( head_l_arr_[0]->position_i_,
- head_l_arr_.top()->position_i_);
+ Grob *r = unsmob_grob (me->get_object ("rest"));
+ if (r && !scm_is_number (r->get_property ("staff-position")))
+ {
+ r->translate_axis (dy * Staff_symbol_referencer::staff_space (r) / 2.0, Y_AXIS);
+ Grob *p = r->get_parent (Y_AXIS);
+ p->flush_extent_cache (Y_AXIS);
+ }
+}
+Grob *
+Note_column::first_head (Grob *me)
+{
+ Grob *st = get_stem (me);
+ return st ? Stem::first_head (st) : 0;
}
+/*
+ Return the first Accidentals grob that we find in a note-head.
+*/
+Grob *
+Note_column::accidentals (Grob *me)
+{
+ extract_grob_set (me, "note-heads", heads);
+ Grob *acc = 0;
+ for (vsize i = 0; i < heads.size (); i++)
+ {
+ Grob *h = heads[i];
+ acc = h ? unsmob_grob (h->get_object ("accidental-grob")) : 0;
+ if (acc)
+ break;
+ }
+
+ if (!acc)
+ return 0;
-void
-Note_column::do_pre_processing()
+ if (Accidental_placement::has_interface (acc->get_parent (X_AXIS)))
+ return acc->get_parent (X_AXIS);
+
+ /* compatibility. */
+ return acc;
+}
+
+Grob *
+Note_column::dot_column (Grob *me)
{
- if (!dir_i_&& !stem_l_){
- dir_i_ = (head_positions_interval().center() >= 5) ? -1 : 1;
+ extract_grob_set (me, "note-heads", heads);
+ for (vsize i = 0; i < heads.size (); i++)
+ {
+ Grob *dots = unsmob_grob (heads[i]->get_object ("dot"));
+ if (dots)
+ return dots->get_parent (X_AXIS);
}
- Head_column::do_pre_processing();
+
+ return 0;
}
-
+Grob *
+Note_column::arpeggio (Grob *me)
+{
+ return unsmob_grob (me->get_object ("arpeggio"));
+}
+
+/* If a note-column contains a cross-staff stem then
+ nc->extent (Y_AXIS, refp) will not consider the extent of the stem.
+ If you want the extent of the stem to be included (and you are safe
+ from any cross-staff issues) then call this function instead. */
+Interval
+Note_column::cross_staff_extent (Grob *me, Grob *refp)
+{
+ Interval iv = me->extent (refp, Y_AXIS);
+ if (Grob *s = get_stem (me))
+ iv.unite (s->extent (refp, Y_AXIS));
+
+ return iv;
+}
+
+ADD_INTERFACE (Note_column,
+ "Stem and noteheads combined.",
+
+ /* properties */
+ "arpeggio "
+ "force-hshift "
+ "horizontal-shift "
+ "ignore-collision "
+ "note-heads "
+ "rest "
+ "rest-collision "
+ "stem "
+ );
projects / lilypond.git / blobdiff