source file of the GNU LilyPond music typesetter
- (c) 1997 Han-Wen Nienhuys <hanwen@stack.nl>
+ (c) 1997--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
-
-#include "dimen.hh"
+#include "dimension-cache.hh"
#include "span-bar.hh"
#include "lookup.hh"
-#include "symbol.hh"
+#include "dimensions.hh"
#include "paper-def.hh"
#include "molecule.hh"
-#include "vertical-align-elem.hh"
+#include "warn.hh"
+#include "axis-group-interface.hh"
+#include "group-interface.hh"
void
-Span_bar::add (Bar*b)
+Span_bar::add_bar (Score_element*b)
{
- b->spanned_i_ ++;
- spanning_l_arr_.push (b);
- add_dependency (b);
-}
+ Group_interface gi (this);
+ gi.add_element (b);
+ add_dependency (b);
+}
-void
-Span_bar::do_substitute_dependency (Score_elem*o, Score_elem*n)
+Interval
+Span_bar::width_callback (Score_element const *se, Axis a)
{
- Bar * bold = 0;
- if (o->is_type_b (Bar::static_name()))
- bold = (Bar*)o->item();
- else
- return;
-
- bold->spanned_i_ --;
- Bar * b =0;
- if (n && n->is_type_b (Bar::static_name())) {
- b = (Bar*)n->item();
- b->spanned_i_ ++;
- }
-
- spanning_l_arr_.substitute (bold , b);
+ Span_bar* s= dynamic_cast<Span_bar*> ((Score_element*)se);
+ String gl = ly_scm2string (s->get_elt_property ("glyph"));
+
+ /*
+ urg.
+ */
+ Molecule m = s->compound_barline (gl, 40 PT);
+
+ return m.extent (X_AXIS);
}
-
void
-Span_bar::set (Vertical_align_element *a)
+Span_bar::before_line_breaking ()
{
- add_dependency (a);
+ Bar::before_line_breaking ();
+
+ evaluate_empty ();
}
-
-Interval
-Span_bar::do_width() const
+void
+Span_bar::after_line_breaking ()
{
- return paper()->lookup_l ()->bar (type_str_, 40 PT).dim.x (); // ugh
+ Bar::after_line_breaking ();
+ Interval i (get_spanned_interval ());
+ translate_axis (i.center (), Y_AXIS);
}
+
void
-Span_bar::do_pre_processing()
-{
- if ( spanning_l_arr_.size() < 1) {
- transparent_b_ = true;
- empty_b_ =true;
- } else {
- if (type_str_ == "")
- type_str_ = spanning_l_arr_[0]->type_str_;
- if (type_str_ =="") {
- transparent_b_=true;
- empty_b_ = true;
- } else if ( type_str_ == "|:") {
- type_str_ = ".|";
- } else if ( type_str_ == ":|"){
- type_str_ = "|.";
- }
+Span_bar::evaluate_empty ()
+{
+ if (!gh_pair_p (get_elt_property ("elements")))
+ {
+ set_elt_property ("transparent", SCM_BOOL_T);
+ set_extent_callback (0, X_AXIS);
+ set_extent_callback (0, Y_AXIS);
+ }
+
+ SCM gl = get_elt_property ("glyph");
+ if (!gh_string_p (gl))
+ {
+ set_elt_property ("transparent", SCM_BOOL_T);
+ set_extent_callback (0, X_AXIS);
+ set_extent_callback (0, Y_AXIS);
}
+ else {
+ String type_str = ly_scm2string (gl);
+ if (type_str == "|:")
+ {
+ type_str= ".|";
+ }
+ else if (type_str== ":|")
+ {
+ type_str= "|.";
+ }
+ else if (type_str== ":|:")
+ {
+ type_str= ".|.";
+ }
+
+ set_elt_property ("glyph", ly_str02scm (type_str.ch_C()));
+ }
}
-Symbol
-Span_bar::get_bar_sym (Real dy) const
+Interval
+Span_bar::get_spanned_interval () const
{
- return paper()->lookup_l ()->bar (type_str_, dy);
+ return Axis_group_interface::group_extent_callback (this, Y_AXIS);
}
-Molecule*
-Span_bar::brew_molecule_p()const
+Real
+Span_bar::get_bar_size () const
{
- Interval y_int;
- for (int i=0; i < spanning_l_arr_.size(); i++) {
- Axis_group_element *common =
- common_group (spanning_l_arr_[i], Y_AXIS);
-
- Real y = spanning_l_arr_[i]->relative_coordinate (common, Y_AXIS)
- -relative_coordinate (common,Y_AXIS);
-
- y_int.unite (y + spanning_l_arr_[i]->height());
+ Interval iv (get_spanned_interval ());
+ if (iv.empty_b ())
+ {
+ programming_error("Huh? My children deflated (FIXME)");
+ iv = Interval (0,0);
}
-
- Symbol s = get_bar_sym (y_int.length());
- Molecule*output = new Molecule (Atom (s));
- output->translate ( y_int[-1], Y_AXIS);
- return output;
+ return iv.length ();
}
-
-IMPLEMENT_IS_TYPE_B1(Span_bar,Bar);
-
-Span_bar::Span_bar()
+Span_bar::Span_bar ()
{
- type_str_ = "";
+ group (this).set_interface ();
+ set_extent_callback (width_callback, X_AXIS);
+
+ // dim_cache_[Y_AXIS]->set_extent_callback (Axis_group_interface::group_extent_callback);
+
+ set_extent_callback (0, Y_AXIS);
}
+