source file of the GNU LilyPond music typesetter
- (c) 1998 Jan Nieuwenhuizen <janneke@gnu.org>
+ (c) 1998--2005 Jan Nieuwenhuizen <janneke@gnu.org>
*/
-#include "mark-engraver.hh"
-#include "text-def.hh"
-#include "script.hh"
-#include "paper-def.hh"
-#include "command-request.hh"
-#include "time-description.hh"
-#include "engraver-group.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 ();
+
+private:
+ Music * mark_ev_;
+};
+
+
-ADD_THIS_TRANSLATOR (Mark_engraver);
Mark_engraver::Mark_engraver ()
{
- mark_req_l_ = 0;
- script_p_ = 0;
+ text_ = 0;
+ mark_ev_ = 0;
}
-bool
-Mark_engraver::do_try_music (Music* r_l)
+void
+Mark_engraver::acknowledge_grob (Grob_info inf)
{
- if (Mark_req *mr = dynamic_cast <Mark_req *> (r_l))
+ Grob * s = inf.grob_;
+ if (text_ && Bar_line::has_interface (s))
{
- mark_req_l_ = mr;
- return true;
+ /*
+ 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);
}
- return false;
}
-void
-Mark_engraver::do_process_requests ()
-{
- if (!mark_req_l_ || script_p_)
- return;
-
- script_p_ = new Script;
- // script_p_->breakable_b_ = true;
+void
+Mark_engraver::stop_translation_timestep ()
+{
+ if (text_)
+ {
+ SCM lst = get_property ("stavesFound");
+ text_->set_property ("side-support-elements" , lst);
+ text_ = 0;
+ }
+ mark_ev_ = 0;
+}
- Text_def *td_p = new Text_def;
- td_p->text_str_ = mark_req_l_->str_;
- td_p->align_dir_ = CENTER;
+void
+Mark_engraver::create_items (Music *ev)
+{
+ if (text_)
+ return;
- td_p->style_str_ = td_p->text_str_.index_any_i ("0123456789") >= 0
- ? "mark" : "Large";
+ text_ = make_item ("RehearsalMark", ev->self_scm ());
+}
- script_p_->dir_ = UP;
- script_p_->specs_p_ = td_p->clone ();
- // script_p_->postbreak_only_b_ = false;
-
- Scalar padding = get_property ("markScriptPadding");
- if (padding.length_i() && padding.isnum_b ())
- {
- script_p_->padding_f_ = Real(padding);
- }
- Scalar break_priority = get_property ("markBreakPriority");
- if (break_priority.length_i() && break_priority.isnum_b ())
- {
- script_p_->break_priority_i_ = int(break_priority);
- }
-
- announce_element (Score_element_info (script_p_, mark_req_l_));
+bool
+Mark_engraver::try_music (Music* r)
+{
+ mark_ev_ = r;
+ return true;
}
-void
-Mark_engraver::do_pre_move_processing ()
+
+/*
+ TODO: make the increment function in Scheme.
+*/
+void
+Mark_engraver::process_music ()
{
- if (script_p_)
+ if (mark_ev_)
{
- typeset_element (script_p_);
- script_p_ = 0;
- mark_req_l_ = 0;
+ 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
+ warning ("rehearsalMark does not have integer value.");
+ }
+
+ if (Text_interface::markup_p (m))
+ text_->set_property ("text", m);
+ else
+ warning ("Mark label should be 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 */ "");