source file of the GNU LilyPond music typesetter
- (c) 1998--2000 Jan Nieuwenhuizen <janneke@gnu.org>
+ (c) 1998--2005 Jan Nieuwenhuizen <janneke@gnu.org>
*/
-#include "command-request.hh"
-#include "mark-engraver.hh"
+
+#include <cctype>
+
+#include "bar-line.hh"
+#include "context.hh"
#include "engraver-group-engraver.hh"
+#include "item.hh"
+#include "warn.hh"
#include "text-item.hh"
+/**
+ 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 ();
-ADD_THIS_TRANSLATOR (Mark_engraver);
+private:
+ Music *mark_ev_;
+};
Mark_engraver::Mark_engraver ()
{
- mark_req_l_ = 0;
- axis_ = Y_AXIS;
- type_ = "mark";
- visibility_lambda_ = ly_eval_str ("mark-visibility");
+ text_ = 0;
+ mark_ev_ = 0;
}
void
-Mark_engraver::do_post_move_processing ()
+Mark_engraver::acknowledge_grob (Grob_info inf)
{
- mark_req_l_ = 0;
+ Grob *s = inf.grob_;
+ if (text_ && Bar_line::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.
+ */
+ text_->set_parent (s, X_AXIS);
+ }
}
-
-bool
-Mark_engraver::do_try_music (Music* r_l)
+void
+Mark_engraver::stop_translation_timestep ()
{
- if (Mark_req *mr = dynamic_cast <Mark_req *> (r_l))
+ if (text_)
{
-
- if (mark_req_l_ && mr->equal_b (mark_req_l_))
- return true;
- if (mark_req_l_)
- return false;
- mark_req_l_ = mr;
- return true;
+ SCM lst = get_property ("stavesFound");
+ text_->set_property ("side-support-elements", lst);
+ text_ = 0;
}
- return false;
+ mark_ev_ = 0;
}
void
-Mark_engraver::do_process_requests ()
+Mark_engraver::create_items (Music *ev)
{
- if (mark_req_l_)
+ if (text_)
+ return;
+
+ text_ = make_item ("RehearsalMark", ev->self_scm ());
+}
+
+bool
+Mark_engraver::try_music (Music *r)
+{
+ mark_ev_ = r;
+ return true;
+}
+
+/*
+ TODO: make the increment function in Scheme.
+*/
+void
+Mark_engraver::process_music ()
+{
+ if (mark_ev_)
{
- create_items (mark_req_l_);
-
- String t = mark_req_l_->str_;
- text_p_->set_elt_property ("text",
- ly_str02scm ( t.ch_C()));
- SCM st = ly_str02scm ((t.index_any_i ("0123456789") >= 0 )
- ? "mark" : "large");
- text_p_->set_elt_property ("style", st);
+ create_items (mark_ev_);
+
+ /*
+ 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 (!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++;
+ context ()->set_property ("rehearsalMark",
+ scm_int2num (mark_count));
+ }
+
+ if (scm_is_number (m))
+ m = scm_call_2 (proc, m, context ()->self_scm ());
+ else
+ /* FIXME: constant error message. */
+ warning (_ ("rehearsalMark must have integer value"));
+ }
+
+ if (Text_interface::markup_p (m))
+ text_->set_property ("text", m);
+ else
+ warning (_ ("mark label must be a markup object"));
}
}
+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 */ "");