/*
rest-collision.cc -- implement Rest_collision
- source file of the LilyPond music typesetter
+ source file of the GNU LilyPond music typesetter
(c) 1997 Han-Wen Nienhuys <hanwen@stack.nl>
*/
+#include "debug.hh"
#include "rest-collision.hh"
#include "rest-column.hh"
+#include "note-column.hh"
+#include "stem.hh"
+#include "note-head.hh"
#include "collision.hh"
+#include "paper-def.hh"
+
+IMPLEMENT_STATIC_NAME(Rest_collision);
+IMPLEMENT_IS_TYPE_B1(Rest_collision,Item);
+
+void
+Rest_collision::add(Note_column *nc_l)
+{
+ add_dependency(nc_l);
+ ncol_l_arr_.push(nc_l);
+}
void
Rest_collision::add(Rest_column *rc_l)
{
- rest_l_arr_.push(rc_l);
add_dependency(rc_l);
+ rest_l_arr_.push(rc_l);
}
+
void
Rest_collision::add(Collision * c_l)
{
ncol_l_arr_.push(c_l->clash_l_arr_[i]);
}
-
void
Rest_collision::do_post_processing()
{
-#if 0
- bool rest_b_a[4];
- rest_b_a[j] = (col_l_a[j]) ? col_l_a[j]->rest_b_ : false;
- do {
- int i1 = idx(d, false);
- int i2 = idx(d,true);
- if (!intersection(y_extent[i1] ,
- y_extent[i2]).empty_b()) {
- if (rest_b_a[i1]) {
- y_off[i1] = -y_extent[i1][-d] + y_extent[1][d] + d*4; // ugh
- y_extent[i1] += y_off[i1];
- }
- }
- } while ((d *= -1) != 1);
+ /*
+ handle rest under beam (do_post: beams are calculated now)
+
+ [todo]
+ i-d like to have access to the beam itself,
+ iso only the (half-initialised?) stem
+
+ what about combination of collisions and rest under beam
+ */
+
+ // no rests to collide
+ if (!rest_l_arr_.size())
+ return;
+ // can this happen?
+ Stem* stem_l = rest_l_arr_[0]->stem_l_;
+ if (!stem_l)
+ return;
+ // no beam
+ if (!(stem_l->beams_left_i_ || stem_l->beams_right_i_))
+ return;
+
+ int dir_i = rest_l_arr_[0]->dir_i_;
+ int midpos = 4;
+#if 1
+ // ugh
+ int stem_length_i = 7 - 2;
+ // ugh, Stem::stem_start vs Stem::stem_end
+ int pos = (stem_l->stem_end_f() - midpos) - dir_i * stem_length_i;
+#else // nogo: stem_start not set for rests?
+ int pos = (stem_l->stem_start_f() - midpos) + dir_i * 2;
+#endif
+ rest_l_arr_[0]->translate_heads(pos);
+}
+
+void
+Rest_collision::do_pre_processing()
+{
+ /*
+ handle rest-rest and rest-note collisions
+
+ [todo]
+ decide not to print rest if too crowded?
+ */
- do {
- int i1 = idx(d, false);
- int i2 = idx(-d,false);
+ // no rests to collide
+ if (!rest_l_arr_.size())
+ return;
+
+ // no partners to collide with
+ if (rest_l_arr_.size() + ncol_l_arr_.size() < 2 )
+ return;
+
+ // meisjes met meisjes
+ if (!ncol_l_arr_.size()) {
+ int dy = rest_l_arr_.size() > 2 ? 6 : 4;
+
+ rest_l_arr_[0]->translate_heads(rest_l_arr_[0]->dir_i_ *dy);
+ // top is last element...
+ rest_l_arr_.top()->translate_heads(rest_l_arr_.top()->dir_i_* dy);
+ }
+ // meisjes met jongetjes
+ else {
+#if 0 // breendet: rests go always under
+ // geen gemug, trug op je rug
+ int dir_i = -1;
+ rest_l_arr_[0]->translate_heads(dir_i * 3 );
+#else
+ // int dir_i = - ncol_l_arr_[0]->dir_i_;
+ int dir_i = rest_l_arr_[0]->dir_i_;
+ // hope it's 4: if it works->doco
+ int midpos = 4;
+
+ // minimum move
+ int minpos = 4;
+
+ // quart rest height
+ // UGH Should get dims from table!
+ int size_i = 6;
- if (d*(y_extent[i1][-d] - y_extent[i2][d] )< 0&& rest_b_a[i1]) {
- y_off[i1] = -y_extent[i1][-d] + y_extent[i2][d] +d* 4; // ugh
- y_extent[i1] += y_off[i1];
+ int sep_i = 3 + size_i / 2;
+ for (int i = 0; i < ncol_l_arr_.size(); i++) {
+ // how to know whether to sort?
+ ncol_l_arr_[i]->sort();
+ for ( int j = 0; j < ncol_l_arr_[i]->head_l_arr_.size(); j++ )
+ minpos = minpos >? dir_i *
+ (ncol_l_arr_[i]->head_l_arr_[j]->position_i_ -midpos ) + sep_i;
}
- } while ((d *= -1) != 1);
-
+ rest_l_arr_[0]->translate_heads(dir_i * minpos );
#endif
+ }
+}
+
+void
+Rest_collision::do_print() const
+{
+#ifndef NPRINT
+ mtor << "rests: " << rest_l_arr_.size() << ", ";
+ mtor << "cols: " << ncol_l_arr_.size();
+#endif
+}
+
+void
+Rest_collision::do_substitute_dependency(Score_elem*o,Score_elem*n)
+{
+ Item*o_l = o->item();
+ Item*n_l = n?n->item():0;
+
+ rest_l_arr_.substitute((Rest_column*)o_l,(Rest_column*)n_l);
+ ncol_l_arr_.substitute((Note_column*)o_l,(Note_column*)n_l);
+}
+
+Rest_collision::Rest_collision()
+{
+ transparent_b_ = true;
+ empty_b_ = true;
}
-IMPLEMENT_STATIC_NAME(Rest_collision);