--- /dev/null
+/*
+ key-reg.cc -- implement Key_engraver
+
+ source file of the GNU LilyPond music typesetter
+
+ (c) 1997--1998 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+
+ */
+#include "key-engraver.hh"
+#include "key-item.hh"
+#include "command-request.hh"
+#include "local-key-engraver.hh"
+#include "musical-request.hh"
+#include "local-key-item.hh"
+#include "bar.hh"
+#include "time-description.hh"
+
+Key_engraver::Key_engraver ()
+{
+ kit_p_ = 0;
+ do_post_move_processing ();
+}
+
+void
+Key_engraver::create_key ()
+{
+ if (!kit_p_)
+ {
+ kit_p_ = new Key_item;
+ kit_p_->break_priority_i_ = -1; // ugh
+ announce_element (Score_element_info (kit_p_,keyreq_l_));
+ kit_p_->read (*this);
+ }
+}
+
+bool
+Key_engraver::do_try_request (Request * req_l)
+{
+ Command_req* creq_l= req_l->access_Command_req ();
+ if (!creq_l|| !creq_l->access_Key_change_req ())
+ return false;
+
+ if (keyreq_l_)
+ return false; // TODO
+ keyreq_l_ = creq_l->access_Key_change_req ();
+ read_req (keyreq_l_);
+ return true;
+}
+
+void
+Key_engraver::acknowledge_element (Score_element_info info)
+{
+ Command_req * r_l = info.req_l_->access_Command_req () ;
+ if (r_l && r_l->access_Clef_change_req ())
+ {
+ create_key ();
+ }
+ else if (info.elem_l_->is_type_b (Bar::static_name ())
+ && accidental_idx_arr_.size ())
+ {
+ if (!keyreq_l_)
+ default_key_b_ = true;
+ create_key ();
+ }
+
+}
+
+void
+Key_engraver::do_process_requests ()
+{
+ if (keyreq_l_)
+ {
+ create_key ();
+ }
+}
+
+void
+Key_engraver::do_pre_move_processing ()
+{
+ if (kit_p_)
+ {
+ kit_p_->default_b_ = default_key_b_;
+ typeset_element (kit_p_);
+ kit_p_ = 0;
+ }
+}
+
+
+/*
+ TODO Slightly hairy.
+ */
+void
+Key_engraver::read_req (Key_change_req const * r)
+{
+ old_accidental_idx_arr_ = accidental_idx_arr_;
+ key_.clear ();
+ Scalar prop = get_property ("specialaccidentals");
+ if (prop.length_i () > 0)
+ {
+ key_.multi_octave_b_ = prop.to_bool ();
+ }
+
+ accidental_idx_arr_.clear ();
+
+ if (r->ordinary_key_b_)
+ {
+ int p;
+ if (r->pitch_arr_.size () < 1)
+ {
+ r->warning (_ ("No key name: assuming `C'"));
+ p = 0;
+ }
+ else
+ {
+ p = r->pitch_arr_[0].semitone_pitch ();
+ if (r->minor_b ())
+ p += 3;
+ }
+ /* Solve the equation 7*no_of_acc mod 12 = p, -6 <= no_of_acc <= 5 */
+ int no_of_acc = (7*p) % 12;
+ no_of_acc = (no_of_acc + 18) % 12 -6;
+
+ /* Correct from flats to sharps or vice versa */
+ if (no_of_acc * r->pitch_arr_[0].accidental_i_ < 0)
+ no_of_acc += 12 * sign (r->pitch_arr_[0].accidental_i_);
+
+ if (no_of_acc < 0)
+ {
+ int accidental = 6 ; // First accidental: bes
+ for ( ; no_of_acc < 0 ; no_of_acc++ )
+ {
+ Musical_pitch m;
+ m.accidental_i_ = -1;
+ m.notename_i_ = accidental;
+ if (key_.multi_octave_b_)
+ key_.set (m);
+ else
+ key_.set (m.notename_i_, m.accidental_i_);
+ accidental_idx_arr_.push (m);
+
+ accidental = (accidental + 3) % 7 ;
+ }
+ }
+ else
+ {
+ int accidental = 3 ; // First accidental: fis
+ for ( ; no_of_acc > 0 ; no_of_acc-- )
+ {
+ Musical_pitch m;
+ m.accidental_i_ = 1;
+ m.notename_i_ = accidental;
+ if (key_.multi_octave_b_)
+ key_.set (m);
+ else
+ key_.set (m.notename_i_, m.accidental_i_);
+ accidental_idx_arr_.push (m);
+
+ accidental = (accidental + 4) % 7 ;
+ }
+ }
+ }
+ else // Special key
+ {
+ for (int i = 0; i < r->pitch_arr_.size (); i ++)
+ {
+ Musical_pitch m_l =r->pitch_arr_[i];
+ if (key_.multi_octave_b_)
+ key_.set (m_l);
+ else
+ key_.set (m_l.notename_i_, m_l.accidental_i_);
+
+ accidental_idx_arr_.push (m_l);
+ }
+ }
+}
+
+void
+Key_engraver::do_post_move_processing ()
+{
+ keyreq_l_ = 0;
+ default_key_b_ = false;
+}
+
+
+IMPLEMENT_IS_TYPE_B1 (Key_engraver,Engraver);
+ADD_THIS_TRANSLATOR (Key_engraver);
+
source file of the GNU LilyPond music typesetter
- (c) 1996, 1997--1998 Han-Wen Nienhuys <hanwen@stack.nl>
+ (c) 1996, 1997--1998 Han-Wen Nienhuys <hanwen@cs.uu.nl>
keyplacement by Mats Bengtsson
*/
#include "paper-def.hh"
#include "lookup.hh"
-#include "key-grav.hh"
+#include "key-engraver.hh"
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 (int c)
+Key_item::Key_item ()
{
breakable_b_ =true;
default_b_ = false;
- set_c_position (c);
+ set_c_position (0);
}
void
Key_item::read (Key_engraver const & key_grav_r)
{
- assert (!key_grav_r.key_.multi_octave_b_);
- const Array<int> &idx_arr =key_grav_r.accidental_idx_arr_;
+ multi_octave_b_ = key_grav_r.key_.multi_octave_b_;
+ const Array<Musical_pitch> &idx_arr = key_grav_r.accidental_idx_arr_;
for (int i = 0 ; i< idx_arr.size(); i++)
{
- int note = idx_arr[i];
- int acc = ((Key &) key_grav_r.key_).oct (0).acc (note);
-
- add (note, acc);
+ Musical_pitch m_l =idx_arr[i];
+ if (multi_octave_b_)
+ add (m_l);
+ else
+ add (m_l.notename_i_, m_l.accidental_i_);
+ }
+ const Array<Musical_pitch> &old_idx_arr = key_grav_r.old_accidental_idx_arr_;
+ for (int i = 0 ; i< old_idx_arr.size(); i++)
+ {
+ Musical_pitch m_l =old_idx_arr[i];
+ if (multi_octave_b_)
+ add_old (m_l);
+ else
+ add_old (m_l.notename_i_, m_l.accidental_i_);
}
}
void
Key_item::set_c_position (int c0)
{
- int from_bottom_pos = c0 + 4; // ugh
- int octaves =(from_bottom_pos / 7) +1 ;
- from_bottom_pos =(from_bottom_pos + 7*octaves)%7;
+ c0_position = c0;
+ // Find the c in the range -4 through 2
+ int from_bottom_pos = c0 + 4;
+ from_bottom_pos = from_bottom_pos%7;
+ from_bottom_pos = (from_bottom_pos + 7)%7; // Precaution to get positive.
c_position = from_bottom_pos - 4;
}
void
Key_item::add (int p, int a)
{
- if ((a<0 && ((p>FLAT_TOP_PITCH) || (p+c_position>4)) && (p+c_position>1))
- ||
- (a>0 && ((p>SHARP_TOP_PITCH) || (p+c_position>5)) && (p+c_position>2)))
- {
- p -= 7; /* Typeset below c_position */
- }
pitch.push (p);
acc.push (a);
}
+void
+Key_item::add (const Musical_pitch& pitch_r)
+{
+ pitch.push (pitch_r.steps());
+ acc.push (pitch_r.accidental_i_);
+}
+
+void
+Key_item::add_old (int p, int a)
+{
+ old_pitch.push (p);
+ old_acc.push (a);
+}
+void
+Key_item::add_old (const Musical_pitch& pitch_r)
+{
+ old_pitch.push (pitch_r.steps());
+ old_acc.push (pitch_r.accidental_i_);
+}
+
+int
+Key_item::calculate_position(int p, int a) const
+{
+ if (multi_octave_b_)
+ {
+ return p + c0_position;
+ }
+ else {
+ if ((a<0 && ((p>FLAT_TOP_PITCH) || (p+c_position>4)) && (p+c_position>1))
+ ||
+ (a>0 && ((p>SHARP_TOP_PITCH) || (p+c_position>5)) && (p+c_position>2)))
+ {
+ p -= 7; /* Typeset below c_position */
+ }
+ return p + c_position;
+ }
+}
+
+/*
+ TODO space the `natural' signs wider
+ */
Molecule*
Key_item::brew_molecule_p() const
{
Molecule*output = new Molecule;
Real inter = paper()->internote_f ();
+ int j;
+ if ((break_status_dir_ == LEFT || break_status_dir_ == CENTER)
+ || old_pitch.size ())
+ {
+ for (int i =0; i < old_pitch.size(); i++)
+ {
+ for (j =0; (j < pitch.size()) && (old_pitch[i] != pitch[j]); j++)
+ ;
+
+ if (j == pitch.size()
+ || (old_pitch[i] == pitch[j] && old_acc[i] != acc[j]))
+ {
+ Atom a =lookup_l ()->accidental (0);
+ a.translate_axis (calculate_position(old_pitch[i], old_acc[i]) * inter, Y_AXIS);
+ Molecule m (a);
+ output->add_at_edge (X_AXIS, RIGHT, m);
+ }
+ }
+
+ /*
+ Add half a space between cancellation and key sig.
+
+ As suggested by [Ross], p.148.
+ */
+ Interval x(0, inter);
+ Interval y(0,0);
+
+ output->add_at_edge (X_AXIS, RIGHT, lookup_l()->fill (Box(x,y)));
+ }
+
for (int i =0; i < pitch.size(); i++)
{
- Atom a =paper()->lookup_l ()->accidental (acc[i]);
- a.translate_axis ((c_position + pitch[i]) * inter, Y_AXIS);
+ Atom a =lookup_l ()->accidental (acc[i]);
+ a.translate_axis (calculate_position(pitch[i], acc[i]) * inter, Y_AXIS);
Molecule m (a);
output->add_at_edge (X_AXIS, RIGHT, m);
}
if (pitch.size())
{
- Molecule m (paper()->lookup_l ()->fill (Box (
- Interval (0, paper()->note_width ()),
- Interval (0,0))));
-
+ Molecule m (lookup_l ()->fill (Box (
+ Interval (0, paper()->note_width ()),
+ Interval (0,0))));
+
output->add_at_edge (X_AXIS, RIGHT, m);
}
return output;
{
if (default_b_)
{
- transparent_b_ = (break_status_i() != 1);
+ transparent_b_ = (break_status_dir() != RIGHT);
set_empty (transparent_b_);
}
}
projects / lilypond.git / commitdiff