source file of the GNU LilyPond music typesetter
- (c) 1998--2000 Jan Nieuwenhuizen <janneke@gnu.org>
+ (c) 1998--2006 Jan Nieuwenhuizen <janneke@gnu.org>
*/
-#include "command-request.hh"
-#include "bar-script-engraver.hh"
-#include "engraver-group-engraver.hh"
-#include "text-item.hh"
+#include <cctype>
+using namespace std;
-/**Print rehearsal marks.
- */
-class Mark_engraver : public Bar_script_engraver
+#include "engraver.hh"
+
+#include "axis-group-interface.hh"
+#include "bar-line.hh"
+#include "context.hh"
+#include "grob-array.hh"
+#include "international.hh"
+#include "item.hh"
+#include "stream-event.hh"
+#include "text-interface.hh"
+#include "warn.hh"
+
+#include "translator.icc"
+
+/**
+ put stuff over or next to bars. Examples: bar numbers, marginal notes,
+ rehearsal marks.
+*/
+class Mark_engraver : public Engraver
{
+
+ void create_items (Stream_event *);
+ Item *text_;
+ Stream_event *mark_ev_;
+
public:
- Mark_engraver ();
- VIRTUAL_COPY_CONS(Translator);
+ TRANSLATOR_DECLARATIONS (Mark_engraver);
+
protected:
- virtual bool do_try_music (Music *req_l);
- virtual void do_process_music ();
- virtual void do_post_move_processing ();
-private:
- Mark_req * mark_req_l_;
+ void process_music ();
+ void stop_translation_timestep ();
+
+ DECLARE_TRANSLATOR_LISTENER (mark);
+ DECLARE_ACKNOWLEDGER (break_alignment);
+ DECLARE_ACKNOWLEDGER (break_aligned);
};
+Mark_engraver::Mark_engraver ()
+{
+ text_ = 0;
+ mark_ev_ = 0;
+}
-ADD_THIS_TRANSLATOR (Mark_engraver);
+/*
+ This is a flawed approach, since various break-aligned objects may
+ not appear depending on key signature etc.
-Mark_engraver::Mark_engraver ()
+ We keep it in case someone puts the engraver in a lower context than score.
+ */
+void
+Mark_engraver::acknowledge_break_aligned (Grob_info inf)
{
- mark_req_l_ = 0;
- axis_ = Y_AXIS;
- type_ = "mark";
+ Grob *s = inf.grob ();
+ if (text_
+ && !text_->get_parent (X_AXIS)
+ && (text_->get_property_data (ly_symbol2scm ("break-align-symbol"))
+ == s->get_property_data (ly_symbol2scm ("break-align-symbol")))
+ && Axis_group_interface::has_interface (s))
+ {
+ /*
+ 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
-Mark_engraver::do_post_move_processing ()
+Mark_engraver::acknowledge_break_alignment (Grob_info inf)
{
- mark_req_l_ = 0;
+ Grob *s = inf.grob ();
+ if (text_
+ && dynamic_cast<Item *> (s))
+ {
+ 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;
+ text_->set_object ("side-support-elements",
+ grob_list_to_grob_array (get_property ("stavesFound")));
+ text_ = 0;
}
- return false;
+ mark_ev_ = 0;
}
void
-Mark_engraver::do_process_music ()
+Mark_engraver::create_items (Stream_event *ev)
{
- if (mark_req_l_)
+ if (text_)
+ return;
+
+ text_ = make_item ("RehearsalMark", ev->self_scm ());
+}
+
+IMPLEMENT_TRANSLATOR_LISTENER (Mark_engraver, mark);
+void
+Mark_engraver::listen_mark (Stream_event *ev)
+{
+ ASSIGN_EVENT_ONCE (mark_ev_, ev);
+}
+
+/*
+ TODO: make the increment function in Scheme.
+*/
+void
+Mark_engraver::process_music ()
+{
+ if (mark_ev_)
{
- create_items (mark_req_l_);
+ create_items (mark_ev_);
- String t;
+ /*
+ automatic marks.
+ */
- SCM m = (mark_req_l_->mark_label_ == SCM_UNDEFINED)
- ? get_property ("rehearsalMark")
- : SCM(mark_req_l_->mark_label_);
-
- if (gh_number_p (m))
- {
- int mark_count = gh_scm2int (m);
- t = to_str (mark_count);
- mark_count ++;
- m = gh_int2scm (mark_count);
- }
- else if (gh_string_p (m))
+ SCM m = mark_ev_->get_property ("label");
+ SCM proc = get_property ("markFormatter");
+ if (!Text_interface::is_markup (m)
+ && ly_is_procedure (proc))
{
- t = ly_scm2string (m);
- String next;
- if (t.length_i ())
+ if (!scm_is_number (m))
+ m = get_property ("rehearsalMark");
+
+ if (scm_integer_p (m) == SCM_BOOL_T
+ && scm_exact_p (m) == SCM_BOOL_T)
{
- char c = t[0];
- c++;
- next = to_str (c);
+ int mark_count = scm_to_int (m);
+ mark_count++;
+ context ()->set_property ("rehearsalMark",
+ scm_from_int (mark_count));
}
- m = ly_str02scm (next.ch_C());
+
+ 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::is_markup (m))
+ text_->set_property ("text", m);
else
- {
- m = gh_int2scm (1);
- }
-
- daddy_trans_l_->set_property ("rehearsalMark", m);
-
-
- 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);
+ warning (_ ("mark label must be a markup object"));
}
}
+ADD_ACKNOWLEDGER (Mark_engraver, break_aligned);
+ADD_ACKNOWLEDGER (Mark_engraver, break_alignment);
+
+ADD_TRANSLATOR (Mark_engraver,
+ /* 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 */ "");
projects / lilypond.git / blobdiff