source file of the GNU LilyPond music typesetter
- (c) 1999--2005 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1999--2006 Han-Wen Nienhuys <hanwen@xs4all.nl>
*/
#include "engraver.hh"
#include "protected-scm.hh"
#include "context.hh"
#include "translator-group.hh"
+#include "translator.icc"
+
class Break_align_engraver : public Engraver
{
Item *align_;
void add_to_group (SCM, Item *);
protected:
- virtual void acknowledge_grob (Grob_info i);
- virtual void stop_translation_timestep ();
+ void stop_translation_timestep ();
virtual void derived_mark () const;
- void add_column (SCM);
-
public:
TRANSLATOR_DECLARATIONS (Break_align_engraver);
+ DECLARE_ACKNOWLEDGER (break_aligned);
};
-void
-Break_align_engraver::add_column (SCM smob)
-{
- Grob *e = unsmob_grob (smob);
- Break_align_interface::add_element (align_, e);
-}
-
void
Break_align_engraver::stop_translation_timestep ()
{
- for (SCM p = column_alist_; scm_is_pair (p); p = scm_cdr (p))
- {
- SCM pair = scm_car (p);
- add_column (scm_cdr (pair));
- }
column_alist_ = SCM_EOL;
align_ = 0;
}
void
-Break_align_engraver::acknowledge_grob (Grob_info inf)
+Break_align_engraver::acknowledge_break_aligned (Grob_info inf)
{
if (Item *item = dynamic_cast<Item *> (inf.grob ()))
{
if (item->get_parent (X_AXIS))
return;
- SCM bp = item->get_property ("breakable");
- bool breakable = (to_boolean (bp));
- if (!breakable)
+ if (!Item::is_non_musical (item))
return;
SCM align_name = item->get_property ("break-align-symbol");
if (!scm_is_symbol (align_name))
return;
-
+
if (!align_)
{
align_ = make_item ("BreakAlignment", SCM_EOL);
Context *origin = inf.origin_contexts (this)[0];
- left_edge_ = make_item_from_properties (dynamic_cast<Engraver *>
- (origin->implementation ()),
- ly_symbol2scm ("LeftEdge"),
- SCM_EOL,
- "LeftEdge");
+
+ Translator_group *tg = origin->implementation ();
+ Engraver *random_source = dynamic_cast<Engraver *> (unsmob_translator (scm_car (tg->get_simple_trans_list ())));
+
+ /*
+ Make left edge appear to come from same context as clef/bar-line etc.
+ */
+ left_edge_ = random_source->make_item ("LeftEdge", SCM_EOL);
add_to_group (left_edge_->get_property ("break-align-symbol"),
left_edge_);
}
group->set_parent (align_, Y_AXIS);
column_alist_ = scm_assoc_set_x (column_alist_, align_name, group->self_scm ());
+
+ Break_align_interface::add_element (align_, group);
}
Axis_group_interface::add_element (group, item);
}
-
+ADD_ACKNOWLEDGER (Break_align_engraver, break_aligned);
ADD_TRANSLATOR (Break_align_engraver,
"Align grobs with corresponding @code{break-align-symbols} into "
"groups, and order the groups according to @code{breakAlignOrder}. "
"The left edge of the alignment gets a separate group, with a symbol @code{left-edge}. ",
- /* creats*/ "BreakAlignment BreakAlignGroup LeftEdge",
- /* accepts */ "",
- /* acks */ "break-aligned-interface",
- /* reads */ "",
+ /* create */ "BreakAlignment BreakAlignGroup LeftEdge",
+ /* read */ "",
/* write */ "");