source file of the GNU LilyPond music typesetter
- (c) 1998--2005 Jan Nieuwenhuizen <janneke@gnu.org>
+ (c) 1998--2007 Jan Nieuwenhuizen <janneke@gnu.org>
*/
#include <cctype>
+using namespace std;
+#include "engraver.hh"
+
+#include "axis-group-interface.hh"
#include "bar-line.hh"
#include "context.hh"
-#include "engraver-group-engraver.hh"
+#include "grob-array.hh"
+#include "international.hh"
#include "item.hh"
+#include "stream-event.hh"
+#include "text-interface.hh"
#include "warn.hh"
-#include "text-item.hh"
+
+#include "translator.icc"
/**
- put stuff over or next to bars. Examples: bar numbers, marginal notes,
- rehearsal marks.
- */
+ put stuff over or next to bars. Examples: bar numbers, marginal notes,
+ rehearsal marks.
+*/
class Mark_engraver : public Engraver
{
-public:
- TRANSLATOR_DECLARATIONS (Mark_engraver);
-protected:
- Item *text_;
-protected:
- virtual void stop_translation_timestep ();
- virtual void acknowledge_grob (Grob_info);
- void create_items (Music*);
- virtual bool try_music (Music *ev);
- virtual void process_music ();
-
-private:
- Music * mark_ev_;
-};
+ void create_items (Stream_event *);
+ Item *text_;
+ Stream_event *mark_ev_;
+public:
+ TRANSLATOR_DECLARATIONS (Mark_engraver);
+protected:
+ void process_music ();
+ void stop_translation_timestep ();
+ DECLARE_TRANSLATOR_LISTENER (mark);
+ DECLARE_ACKNOWLEDGER (break_alignment);
+ DECLARE_ACKNOWLEDGER (break_aligned);
+};
Mark_engraver::Mark_engraver ()
{
mark_ev_ = 0;
}
+/*
+ This is a flawed approach, since various break-aligned objects may
+ not appear depending on key signature etc.
+
+ We keep it in case someone puts the engraver in a lower context than score.
+ */
void
-Mark_engraver::acknowledge_grob (Grob_info inf)
+Mark_engraver::acknowledge_break_aligned (Grob_info inf)
{
- Grob * s = inf.grob_;
- if (text_ && Bar_line::has_interface (s))
+ Grob *s = inf.grob ();
+ if (text_
+ && !text_->get_parent (X_AXIS)
+ && (text_->get_property_data ("break-align-symbol")
+ == s->get_property_data ("break-align-symbol"))
+ && Axis_group_interface::has_interface (s))
{
/*
- TODO: make this configurable. RehearsalMark cannot be
- break-aligned, since the width of the object should not be taken
- into alignment considerations.
+ RehearsalMark cannot be break-aligned, since the width of the
+ object should not be taken into alignment considerations.
*/
text_->set_parent (s, X_AXIS);
}
}
-void
+void
+Mark_engraver::acknowledge_break_alignment (Grob_info inf)
+{
+ Grob *s = inf.grob ();
+ if (text_
+ && dynamic_cast<Item *> (s))
+ {
+ text_->set_parent (s, X_AXIS);
+ }
+}
+
+
+void
Mark_engraver::stop_translation_timestep ()
{
if (text_)
{
- SCM lst = get_property ("stavesFound");
- text_->set_property ("side-support-elements" , lst);
+ text_->set_object ("side-support-elements",
+ grob_list_to_grob_array (get_property ("stavesFound")));
text_ = 0;
}
mark_ev_ = 0;
}
-
void
-Mark_engraver::create_items (Music *ev)
+Mark_engraver::create_items (Stream_event *ev)
{
if (text_)
return;
text_ = make_item ("RehearsalMark", ev->self_scm ());
}
-
-bool
-Mark_engraver::try_music (Music* r)
+IMPLEMENT_TRANSLATOR_LISTENER (Mark_engraver, mark);
+void
+Mark_engraver::listen_mark (Stream_event *ev)
{
- mark_ev_ = r;
- return true;
+ ASSIGN_EVENT_ONCE (mark_ev_, ev);
}
-
/*
TODO: make the increment function in Scheme.
*/
/*
automatic marks.
- */
+ */
-
SCM m = mark_ev_->get_property ("label");
SCM proc = get_property ("markFormatter");
- if (!Text_interface::markup_p (m) &&
- ly_c_procedure_p (proc))
+ if (!Text_interface::is_markup (m)
+ && ly_is_procedure (proc))
{
- if (!scm_is_number (m))
- m = get_property ("rehearsalMark");
+ if (!scm_is_number (m))
+ m = get_property ("rehearsalMark");
if (scm_integer_p (m) == SCM_BOOL_T
&& scm_exact_p (m) == SCM_BOOL_T)
{
int mark_count = scm_to_int (m);
- mark_count ++;
+ mark_count++;
context ()->set_property ("rehearsalMark",
- scm_int2num (mark_count));
+ scm_from_int (mark_count));
}
if (scm_is_number (m))
m = scm_call_2 (proc, m, context ()->self_scm ());
else
- warning ("rehearsalMark does not have integer value.");
+ /* FIXME: constant error message. */
+ warning (_ ("rehearsalMark must have integer value"));
}
- if (Text_interface::markup_p (m))
+ if (Text_interface::is_markup (m))
text_->set_property ("text", m);
else
- warning ("Mark label should be markup object.");
+ warning (_ ("mark label must be a markup object"));
}
}
+ADD_ACKNOWLEDGER (Mark_engraver, break_aligned);
+ADD_ACKNOWLEDGER (Mark_engraver, break_alignment);
+
ADD_TRANSLATOR (Mark_engraver,
-/* descr */ "This engraver will create RehearsalMark objects. "
- "It puts them on top of all staves (which is taken from "
- "the property @code{stavesFound}). If moving this engraver "
- "to a different context, "
- "@ref{Staff_collecting_engraver} must move along, otherwise all marks"
- "end up on the same Y-location"
- ,
-/* creats*/ "RehearsalMark",
-/* accepts */ "mark-event",
-/* acks */ "bar-line-interface",
-/* reads */ "rehearsalMark markFormatter stavesFound",
-/* write */ "");
+ /* doc */ "This engraver will create RehearsalMark objects. "
+ "It puts them on top of all staves (which is taken from "
+ "the property @code{stavesFound}). If moving this engraver "
+ "to a different context, "
+ "@ref{Staff_collecting_engraver} must move along, otherwise all marks"
+ "end up on the same Y-location",
+
+ /* create */ "RehearsalMark",
+ /* read */
+ "markFormatter "
+ "rehearsalMark "
+ "stavesFound ",
+
+ /* write */ "");