source file of the GNU LilyPond music typesetter
- (c) 1996, 1997--1999 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1996--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
keyplacement by Mats Bengtsson
*/
+#include "item.hh"
#include "key-item.hh"
-#include "key.hh"
-#include "debug.hh"
#include "molecule.hh"
#include "paper-def.hh"
+#include "font-interface.hh"
+#include "staff-symbol-referencer.hh"
#include "lookup.hh"
-#include "musical-pitch.hh"
+/*
+ FIXME: too much hardcoding here.
+ */
const int FLAT_TOP_PITCH=2; /* fes,ges,as and bes typeset in lower octave */
const int SHARP_TOP_PITCH=4; /* ais and bis typeset in lower octave */
-Key_item::Key_item ()
-{
- multi_octave_b_ = false;
- set_elt_property ("breakable", SCM_BOOL_T);
- set_c_position (0);
-}
-
-int
-Key_item::get_c_position () const
-{
- // Find the c in the range -4 through 2
- int from_bottom_pos = c0_position_ + 4;
- from_bottom_pos = from_bottom_pos%7;
- from_bottom_pos = (from_bottom_pos + 7)%7; // Precaution to get positive.
- return from_bottom_pos - 4;
-}
-
-
-void
-Key_item::set_c_position (int c0)
-{
- c0_position_ = c0;
-}
-
-
-void
-Key_item::add (int p, int a)
-{
- pitch_arr_.push (p);
- acc_arr_.push (a);
-}
-
-void
-Key_item::add_old (int p, int a)
-{
- old_pitch_arr_.push (p);
- old_acc_arr_.push (a);
-}
-
+/*
+ FIXME: key-item should just get a list of (position, acc), and leave
+ the thinking to other parties.
+ */
int
-Key_item::calculate_position(int p, int a) const
+Key_item::calculate_position(Grob *ki, SCM pair)
{
- if (multi_octave_b_)
+ int p = gh_scm2int (gh_car (pair));
+ int a = gh_scm2int (gh_cdr (pair));
+ int c0p = gh_scm2int (ki->get_grob_property ("c0-position"));
+ if (to_boolean (ki->get_grob_property ("multi-octave")))
{
- return p + c0_position_;
+ return p + c0p;
}
else {
- if ((a<0 && ((p>FLAT_TOP_PITCH) || (p+get_c_position ()>4)) && (p+get_c_position ()>1))
+ // Find the c in the range -4 through 2
+ int from_bottom_pos = c0p + 4;
+ from_bottom_pos = from_bottom_pos%7;
+ from_bottom_pos = (from_bottom_pos + 7)%7; // Precaution to get positive.
+ int c0 = from_bottom_pos - 4;
+
+
+ if ((a<0 && ((p>FLAT_TOP_PITCH) || (p+c0>4)) && (p+c0>1))
||
- (a>0 && ((p>SHARP_TOP_PITCH) || (p+get_c_position ()>5)) && (p+get_c_position ()>2)))
+ (a>0 && ((p>SHARP_TOP_PITCH) || (p+c0>5)) && (p+c0>2)))
{
p -= 7; /* Typeset below c_position */
}
- /* Provide for the four cases in which there's a glitch */
- /* it's a hack, but probably not worth */
- /* the effort of finding a nicer solution. dl. */
- if (get_c_position ()==2 && a>0 && p==3)
+ /* Provide for the four cases in which there's a glitch
+ it's a hack, but probably not worth
+ the effort of finding a nicer solution.
+ --dl. */
+ if (c0==2 && a>0 && p==3)
p -= 7;
- if (get_c_position ()==-3 && a>0 && p==-1)
+ if (c0==-3 && a>0 && p==-1)
p += 7;
- if (get_c_position ()==-4 && a<0 && p==-1)
+ if (c0==-4 && a<0 && p==-1)
p += 7;
- if (get_c_position ()==-2 && a<0 && p==-3)
+ if (c0==-2 && a<0 && p==-3)
p += 7;
- return p + get_c_position ();
+
+ return p + c0;
}
}
/*
TODO
- space the `natural' signs wider
- - dehair this
*/
-Molecule*
-Key_item::do_brew_molecule_p() const
+MAKE_SCHEME_CALLBACK(Key_item,brew_molecule,1);
+SCM
+Key_item::brew_molecule (SCM smob)
{
- Molecule*output = new Molecule;
- Real inter = staff_line_leading_f ()/2.0;
+ Grob*me =unsmob_element (smob);
+
+
+ Real inter = Staff_symbol_referencer::staff_space (me)/2.0;
- int j;
- if ((break_status_dir () == LEFT || break_status_dir () == CENTER)
- || old_pitch_arr_.size ())
+ SCM newas = me->get_grob_property ("new-accidentals");
+ Molecule mol;
+ /*
+ SCM lists are stacks, so we work from right to left, ending with
+ the cancellation signature.
+ */
+ for (SCM s = newas; gh_pair_p (s); s = gh_cdr (s))
{
- for (int i =0; i < old_pitch_arr_.size(); i++)
- {
- for (j =0; (j < pitch_arr_.size())
- && (old_pitch_arr_[i] != pitch_arr_[j]); j++)
- ;
-
- if (j == pitch_arr_.size()
- || (old_pitch_arr_[i] == pitch_arr_[j]
- && old_acc_arr_[i] != acc_arr_[j]))
- {
- Molecule m =lookup_l ()->accidental (0,false);
- m.translate_axis (calculate_position(old_pitch_arr_[i], old_acc_arr_[i]) * inter, Y_AXIS);
- output->add_at_edge (X_AXIS, RIGHT, m,0);
- }
- }
+ int a = gh_scm2int (gh_cdar (s));
+ Molecule m = Font_interface::get_default_font (me)->find_by_name ("accidentals-" + to_str (a));
+ m.translate_axis (calculate_position(me, gh_car (s)) * inter, Y_AXIS);
+ mol.add_at_edge (X_AXIS, LEFT, m, 0);
+ }
+ Item *it = dynamic_cast<Item*> (me) ;
+ if (it->break_status_dir () != RIGHT)
+ {
+ SCM old = me->get_grob_property ("old-accidentals");
/*
Add half a space between cancellation and key sig.
Interval x(0, inter);
Interval y(0,0);
- output->add_at_edge (X_AXIS, RIGHT, lookup_l()->fill (Box(x,y)),0);
- }
-
- for (int i =0; i < pitch_arr_.size(); i++)
- {
- Molecule m =lookup_l ()->accidental (acc_arr_[i],false);
- m.translate_axis (calculate_position(pitch_arr_[i], acc_arr_[i]) * inter, Y_AXIS);
- output->add_at_edge (X_AXIS, RIGHT, m, 0);
+ mol.add_at_edge (X_AXIS, LEFT, Lookup::blank (Box(x,y)),0);
+
+ for (; gh_pair_p (old); old = gh_cdr (old))
+ {
+ SCM found = SCM_EOL;
+
+ /*
+ find correspondences in pitches
+ */
+ for (SCM s = newas; gh_pair_p (s); s = gh_cdr (s))
+ if (gh_caar(s) == gh_caar (old))
+ found = gh_car (s);
+
+ if (found == SCM_EOL || gh_cdr (found) != gh_cdar (old))
+ {
+ Molecule m =Font_interface::get_default_font (me)->find_by_name ("accidentals-0");
+
+ m.translate_axis (calculate_position (me, gh_car (old)) * inter, Y_AXIS);
+ mol.add_at_edge (X_AXIS, LEFT, m,0);
+ }
+ }
}
- return output;
+ return mol.smobbed_copy();
}
+
+bool
+Key_item::has_interface (Grob*m)
+{
+ return m && m->has_interface (ly_symbol2scm ("key-signature-interface"));
+}
+
+void
+Key_item::set_interface (Grob*m)
+{
+ m->set_interface (ly_symbol2scm ("key-signature-interface"));
+}
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