source file of the GNU LilyPond music typesetter
- (c) 1997--1998 Han-Wen Nienhuys <hanwen@stack.nl>
+ (c) 1997--2002 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
#ifndef REQUEST_HH
#include "music.hh"
#include "direction.hh"
-/**
- a voice element wants something printed.
- Hungarian postfix: req
- @see lilygut manpage
+
+/** An atom of musical information. This is an abstract class for any
+ piece of music that does not contain other Music.
+
+ Hungarian postfix: req
+
*/
class Request : public Music {
-
public:
-
- /* *************** */
-
- virtual ~Request(){}
-
- DECLARE_MY_RUNTIME_TYPEINFO;
- VIRTUAL_COPY_CONS(Request,Music);
-
- virtual MInterval time_int() const;
- virtual void transpose (Melodic_req const &){}
- virtual Moment duration() const { return 0; }
-
- /* accessors for children
- maybe checkout RTTI
- */
- virtual Barcheck_req *barcheck() { return 0; }
- virtual Script_req *script() { return 0;}
- virtual Span_req *span() { return 0; }
- virtual Spacing_req * spacing() { return 0; }
- virtual Blank_req * blank() { return 0; }
- virtual Musical_req *musical() { return 0; }
- virtual Command_req * command() { return 0; }
- bool equal_b (Request*) const;
+ Request ();
+ VIRTUAL_COPY_CONS (Music);
+ bool equal_b (Request const*) const;
protected:
- virtual bool do_equal_b (Request*) const;
- virtual void do_print() const;
+ virtual bool do_equal_b (Request const*) const;
+
};
-#define REQUESTMETHODS(T,accessor) \
-virtual T * accessor() { return this;}\
-DECLARE_MY_RUNTIME_TYPEINFO;\
-VIRTUAL_COPY_CONS(T, Request);\
-virtual void do_print() const
+class Script_req : public virtual Request
+{
+public:
+ void set_direction (Direction d);
+ Direction get_direction () const;
+ VIRTUAL_COPY_CONS (Music);
+ Script_req ();
+};
+
-/** Put a script above or below this ``note'' or bar. eg upbow, downbow. Why
- a request? These symbols may conflict with slurs and brackets, so
- this also a request */
-class Script_req : public virtual Request {
+/**
+ Requests to start or stop something.
+ This type of request typically results in the creation of a #Spanner#
+*/
+class Span_req : public virtual Request {
public:
- Direction dir_;
- General_script_def *scriptdef_p_;
+ String get_span_type_str () const;
+ void set_span_type_str (String);
+ void set_span_dir (Direction d);
+ Direction get_span_dir () const;
+
+ Span_req ();
+protected:
+
+ virtual bool do_equal_b (Request const*) const;
- /* *************** */
- bool do_equal_b (Request*) const;
+ VIRTUAL_COPY_CONS (Music);
+};
- Script_req();
- REQUESTMETHODS(Script_req,script);
- ~Script_req();
- Script_req (Script_req const&);
+/**
+ Start a tie at this note, end it at the next
+ */
+class Tie_req : public Request {
+public:
+ VIRTUAL_COPY_CONS (Music);
};
-
#endif