source file of the GNU LilyPond music typesetter
- (c) 1997 Han-Wen Nienhuys <hanwen@stack.nl>
+ (c) 1997--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
#ifndef REQUEST_HH
#include "virtual-methods.hh"
#include "input.hh"
#include "music.hh"
+#include "direction.hh"
+
+
+/** An atom of musical information. This is an abstract class for any
+ piece of music that does not contain other Music.
+
+ Hungarian postfix: req
-/**
- a voice element wants something printed.
- Hungarian postfix: req
- @see lilygut manpage
*/
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; }
+ VIRTUAL_COPY_CONS(Music);
+ bool equal_b (Request const*) const;
protected:
- virtual void do_print()const ;
+ virtual bool do_equal_b (Request const*) const;
+
+};
+
+
+
+class Script_req : public virtual Request
+{
+public:
+ Direction dir_;
+ void set_direction (Direction d ) { dir_ = d; }
+ Direction get_direction () const { return dir_; }
+
+ VIRTUAL_COPY_CONS(Music);
+ Script_req ();
};
-#define REQUESTMETHODS(T,accessor) \
-virtual T * accessor() { return this;}\
-DECLARE_MY_RUNTIME_TYPEINFO;\
-VIRTUAL_COPY_CONS(T, Request);\
-virtual void do_print() const
+/**
+ 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:
+ /// should the spanner start or stop, or is it unwanted?
+ Direction span_dir_;
+ String span_type_str_;
+
+ Span_req();
+protected:
+ virtual bool do_equal_b (Request const*) const;
+ VIRTUAL_COPY_CONS(Music);
+};
-/** 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 {
+/**
+ Start a tie at this note, end it at the next
+ */
+class Tie_req : public Request {
public:
- int dir_i_;
- General_script_def *scriptdef_p_;
-
- /* *************** */
- static int compare(const Script_req &, const Script_req &);
- Script_req();
- REQUESTMETHODS(Script_req,script);
- ~Script_req();
- Script_req(Script_req const&);
+ VIRTUAL_COPY_CONS(Music);
};
-
#endif