/*
- score-element.hh -- part of GNU LilyPond
+ score-element.hh -- declare Score_element
- (c) 1996,97 Han-Wen Nienhuys
+ (c) 1996-1999 Han-Wen Nienhuys
*/
#ifndef STAFFELEM_HH
#include "parray.hh"
#include "virtual-methods.hh"
-#include "directed-graph.hh"
-#include "graphical-element.hh"
-
-#define SCORE_ELEMENT_CLONE(T) VIRTUAL_COPY_CONS (T, Score_element)
-
+#include "lily-guile.hh"
+#include "lily-proto.hh"
+#include "smobs.hh"
typedef void (Score_element::*Score_element_method_pointer) (void);
which are implemented in the Directed_graph_node class: all elements
form an acyclic graph.
- (elem) */
-class Score_element : private Directed_graph_node, public virtual Graphical_element {
+ (elem)
+
+
+Element Properties:
+
+Boolean (true iff defined)
+
+ break_helper_only -- if defined try to junk this after calcing breakpoints.
+
+ transparent -- do not calc. output
+
+*/
+class Score_element {
+ /**
+ The lookup, determined by the font size. Cache this value.
+ */
+ Lookup * lookup_l_;
public:
- Paper_score *pscore_l_;
+ /**
+ properties specific for this element. Destructor will not call
+ scm_unprotect, so as to allow more flexible GC arrangements. The
+ real alist is in (cdr element_property_alist_), to reduce the
+ need for more scm_protect calls.
+
+ */
+ SCM element_property_alist_;
+
+ Score_element *original_l_;
+
+ /**
+ Administration: Where are we?. This is mainly used by Super_element and
+ Score_element::calcalute_dependencies ()
+
+ 0 means ORPHAN,
+ -1 means deleted
+
+ */
+ int status_i_;
+
+ Paper_score *pscore_l_;
Score_element ();
Score_element (Score_element const&);
virtual void print () const;
-
- Paper_def *paper () const;
- Lookup const *lookup_l () const;
- virtual ~Score_element ();
- DECLARE_MY_RUNTIME_TYPEINFO;
+ /*
+ properties
+ */
+ SCM get_elt_property (String nm) const;
+ void set_elt_property (String, SCM val);
+
+ /**
+ UGH! JUNKME ?
+
+ This gets messy because it changes state
+
+ calling
+
+ Bar::proc ()
+ {
+ s->remove_elt_property ("foo")
+ }
+
+ twice may do weird things if Bar::foo has a default set.
+
+ */
+ SCM remove_elt_property (String nm);
+
+ void Score_element::set_real (String, Real);
+ Real Score_element::get_real (String s) const;
+
+ /*
+ related classes.
+ */
+ Paper_def *paper_l () const;
+ Lookup const *lookup_l () const;
void add_processing ();
- /**
- Remove all links (dependencies, dependents, Axis_group_elements.
- */
- void unlink ();
- void substitute_dependency (Score_element*,Score_element*);
- void remove_dependency (Score_element*);
/**
add a dependency. It may be the 0 pointer, in which case, it is ignored.
*/
void add_dependency (Score_element*);
-
- /*
- virtual accessors
- */
-
- virtual Spanner* access_Spanner () { return 0; }
- virtual Span_bar* access_Span_bar () { return 0; }
- virtual Axis_group_element * access_Axis_group_element () { return 0; }
- virtual Score_element* access_Score_element () { return this; }
-
- virtual Item * access_Item () { return 0; }
virtual Line_of_score * line_l () const;
- virtual bool linked_b () const;
- SCORE_ELEMENT_CLONE (Score_element);
+ bool linked_b () const;
+ VIRTUAL_COPY_CONS(Score_element);
- /// do not print anything black
- bool transparent_b_;
+ /**
+ Recursively track all dependencies of this Score_element. The
+ status_i_ field is used as a mark-field. It is marked with
+ #busy# during execution of this function, and marked with #final#
+ when finished.
- int size_i_;
-
- // ugh: no protection. Denk na, Vrij Veilig
+ #funcptr# is the function to call to update this element.
+ */
void calculate_dependencies (int final, int busy, Score_element_method_pointer funcptr);
-protected:
- /**
- Administration: Where are we?. This is mainly used by Super_element and
- Score_element::calcalute_dependencies ()
+ static SCM handle_broken_smobs (SCM, SCM criterion);
+ void recurse_into_smobs (SCM s, void (Score_element::*meth_ptr)());
- 0 means ORPHAN,
- -1 means deleted
-
- */
-public:
- int status_i_;
+ virtual void do_break_processing ();
+ virtual Score_element *find_broken_piece (Line_of_score*) const;
protected:
- Score_element* dependency (int) const;
- Score_element* dependent (int) const;
- int dependent_size () const;
- int dependency_size () const;
+
+ /**
+ Junk score element. This is protected because this is supposed to
+ be handled by GUILE gc. */
+ virtual ~Score_element ();
- virtual void do_brew_molecule ();
- void junk_links ();
- virtual Interval do_height () const;
- virtual Interval do_width () const;
-
+ virtual void output_processing ();
+ static Interval molecule_extent (Dimension_cache const*);
+
/// do printing of derived info.
- virtual void do_print () const {}
+ virtual void do_print () const;
/// generate the molecule
- virtual Molecule* brew_molecule_p () const;
+ virtual Molecule do_brew_molecule () const;
///executed directly after the item is added to the Paper_score
virtual void do_add_processing ();
/// do calculations before determining horizontal spacing
- virtual void do_pre_processing ();
+ virtual void before_line_breaking ();
/// generate rods & springs
virtual void do_space_processing ();
virtual void do_breakable_col_processing ();
/// do calculations after determining horizontal spacing
- virtual void do_post_processing ();
+ virtual void after_line_breaking ();
- virtual void do_substitute_dependency (Score_element * , Score_element *);
- virtual void do_substitute_dependent (Score_element *, Score_element *);
- virtual void do_break_processing ();
+ virtual Link_array<Score_element> get_extra_dependencies () const;
+
+ static Interval dim_cache_callback (Dimension_cache const*);
+public:
+ static SCM ly_set_elt_property (SCM, SCM,SCM);
+ static SCM ly_get_elt_property (SCM, SCM);
+
virtual void handle_broken_dependencies ();
virtual void handle_prebroken_dependencies ();
- virtual Link_array<Score_element> get_extra_dependencies () const;
- virtual void do_unlink ();
- virtual void do_junk_links ();
+
+
+ DECLARE_SMOBS;
+
+ void init ();
+
+public:
+ Dimension_cache *dim_cache_[NO_AXES];
+
+ /**
+ Set this if anyone points to me, or if I point to anyone.
+ */
+ bool used_b_;
+
+ char const * name () const;
+ /**
+ Set empty in direction A.
+ */
+ void set_empty (Axis a);
+ bool empty_b (Axis a) const;
+ Interval extent (Axis) const;
+
+ /**
+ translate in one direction
+ */
+
+ void translate_axis (Real, Axis);
+
+ Real relative_coordinate (Score_element const* refp, Axis) const;
+ /**
+ Find the group-element which has both #this# and #s#
+ */
+ Score_element*common_refpoint (Score_element const* s, Axis a) const;
+ Score_element*common_refpoint (Link_array<Score_element> elems, Axis a) const;
+
+ /**
+ Set the parent refpoint of THIS to E
+ */
+ void set_parent (Score_element* e, Axis);
+ Score_element *parent_l (Axis a) const;
+ void fixup_refpoint ();
};
+Score_element * unsmob_element (SCM);
+
+
#endif // STAFFELEM_HH
projects / lilypond.git / blobdiff