along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
*/
+#include "directional-element-interface.hh"
#include "grob.hh"
#include "fingering-column.hh"
#include "pointer-group-interface.hh"
#include "item.hh"
#include "paper-column.hh"
+#define EPS 1e-5
+
+struct Fingering_and_offset
+{
+ Grob *fingering_;
+ Real offset_;
+ Fingering_and_offset (Grob *fingering, Real offset);
+};
+
+Fingering_and_offset::Fingering_and_offset (Grob *fingering, Real offset) :
+ fingering_ (fingering), offset_ (offset)
+{
+}
+
+bool
+fingering_and_offset_less (Fingering_and_offset fo0, Fingering_and_offset fo1)
+{
+ return fo0.offset_ < fo1.offset_;
+}
+
MAKE_SCHEME_CALLBACK (Fingering_column, calc_positioning_done, 1);
SCM
Fingering_column::calc_positioning_done (SCM smob)
{
- Grob *me = unsmob_grob (smob);
+ Grob *me = unsmob<Grob> (smob);
if (!me->is_live ())
return SCM_BOOL_T;
me->set_property ("positioning-done", SCM_BOOL_T);
+ do_y_positioning (me);
+ do_x_positioning (me);
+
+ return SCM_BOOL_T;
+}
+
+void
+Fingering_column::do_y_positioning (Grob *me)
+{
extract_grob_set (me, "fingerings", const_fingerings);
if (const_fingerings.size () < 2)
{
me->programming_error ("This FingeringColumn should have never been created.");
- return SCM_BOOL_T;
+ return;
}
vector<Grob *> fingerings;
{
Interval x_ext = fingerings[i]->extent(common[X_AXIS], X_AXIS);
Interval y_ext = fingerings[i]->extent(fingerings[i], Y_AXIS);
- Real parent_y = fingerings[i]->get_parent(Y_AXIS)
- ->relative_coordinate(common[Y_AXIS], Y_AXIS);
+ Real parent_y = fingerings[i]->parent_relative (common[Y_AXIS], Y_AXIS);
// Checking only between sequential neighbors, seems good enough
if (!intersection(x_ext, prev_x_ext).is_empty())
for (vsize i = 0; i < fingerings.size (); i++)
fingerings[i]->translate_axis(shift[i], Y_AXIS);
+}
+
+void
+Fingering_column::do_x_positioning (Grob *me)
+{
+ extract_grob_set (me, "fingerings", fingerings);
+ if (!fingerings.size ())
+ return;
+
+ Grob *common_x = common_refpoint_of_array (fingerings, me, X_AXIS);
+
+ Real snap = robust_scm2double (me->get_property ("snap-radius"), 0.3);
+ vector<Fingering_and_offset> fos;
+
+ for (vsize i = 0; i < fingerings.size (); i++)
+ fos.push_back (Fingering_and_offset (fingerings[i], fingerings[i]->relative_coordinate (common_x, X_AXIS)));
+
+ vector_sort (fos, fingering_and_offset_less);
+ Direction dir = get_grob_direction (fingerings[0]);
+ if (dir == RIGHT)
+ reverse (fos);
+
+ Real prev = infinity_f * dir;
+ for (vsize i = 0; i < fos.size (); i++)
+ {
+ if ((fabs (fos[i].offset_ - prev) < snap)
+ && (fabs (fos[i].offset_ - prev) > EPS))
+ fos[i].offset_ = prev;
+
+ prev = fos[i].offset_;
+ }
- return SCM_BOOL_T;
+ for (vsize i = 0; i < fos.size (); i++)
+ fos[i].fingering_->translate_axis (fos[i].offset_ - fos[i].fingering_->relative_coordinate (common_x, X_AXIS), X_AXIS);
}
void
ADD_INTERFACE (Fingering_column,
"Makes sure that fingerings placed laterally"
- " do not collide.",
+ " do not collide and that they are flush if"
+ " necessary.",
/* properties */
"padding "
"positioning-done "
+ "snap-radius "
);