/*
- score-element.hh -- part of GNU LilyPond
+ score-element.hh -- declare Score_element
- (c) 1996,97 Han-Wen Nienhuys
+ (c) 1996-1999--2000 Han-Wen Nienhuys
*/
#ifndef STAFFELEM_HH
#include "parray.hh"
#include "virtual-methods.hh"
-#include "directed-graph.hh"
-#include "graphical-element.hh"
-
+#include "lily-guile.hh"
+#include "lily-proto.hh"
+#include "smobs.hh"
+#include "dimension-cache.hh"
+/**
+ for administration of what was done already
+ */
+enum Score_element_status {
+ ORPHAN=0, // not yet added to Paper_score
+ VIRGIN,
+ PRECALCING,
+ PRECALCED, // calcs before spacing done
+ POSTCALCING, // busy calculating. This is used to trap cyclic deps.
+ POSTCALCED, // after spacing calcs done
+};
typedef void (Score_element::*Score_element_method_pointer) (void);
-/** Both Spanner and Item are Score_element's. Most Score_element's depend
- on other Score_element's, eg, Beam needs to know and set direction of
- Stem. So the Beam has to be calculated *before* Stem. This is
- accomplished with the dependencies fields of struct Score_element,
- 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 {
+/*
+ Basic output object.
+*/
+class Score_element {
public:
- Paper_score *pscore_l_;
- Molecule * output_p_;
- Score_element ();
- Score_element (Score_element const&);
- virtual void print () const;
-
- Paper_def *paper () const;
- Lookup const *lookup_l () const;
+ SCM immutable_property_alist_;
+ SCM mutable_property_alist_;
+ Score_element *original_l_;
- virtual ~Score_element ();
-
+ /**
+ Administration: Where are we?. This is mainly used by Super_element and
+ Score_element::calcalute_dependencies ()
+
+ 0 means ORPHAN,
+ */
+ char status_i_;
+ String name () const;
- void add_processing ();
+ /*
+ IDEA: make this a global variable. This is the same for all
+ elements, I think it is safe to assume that we will not have
+ scores being formatted multithreadedly.
+ */
+ Paper_score *pscore_l_;
+
+ Score_element (SCM basic_props);
+ Score_element (Score_element const&);
+
+ /*
+ properties
+ */
+ SCM get_elt_property (const char*) const;
+ SCM get_elt_property (SCM) const;
+ void set_elt_property (const char * , SCM val);
+ void set_immutable_elt_property (const char * , SCM val);
+ void set_immutable_elt_property (SCM key, SCM val);
+ void set_elt_property (SCM , SCM val);
+ void set_elt_pointer (const char*, SCM val);
+ friend class Property_engraver; // UGHUGHUGH.
+ SCM remove_elt_property (const char* nm);
+
+ /*
+ related classes.
+ */
+ Paper_def *paper_l () const;
- /**
- 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 Line_of_score * line_l () const;
- virtual bool linked_b () const;
+ 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.
+
+ #funcptr# is the function to call to update this element.
+ */
+ void calculate_dependencies (int final, int busy, SCM funcname);
+ static SCM handle_broken_smobs (SCM, SCM criterion);
+
+ virtual void do_break_processing ();
+ virtual Score_element *find_broken_piece (Line_of_score*) const;
+ virtual void discretionary_processing ();
+ virtual SCM do_derived_mark ();
- int size_i_;
+ Molecule * get_molecule () const;
+ void suicide ();
- // ugh: no protection. Denk na, Vrij Veilig
- void calculate_dependencies (int final, int busy, Score_element_method_pointer funcptr);
+ DECLARE_SCHEME_CALLBACK(preset_extent, (SCM smob, SCM axis));
+ DECLARE_SCHEME_CALLBACK(point_dimension_callback, (SCM smob, SCM axis));
+ DECLARE_SCHEME_CALLBACK(molecule_extent, (SCM smob, SCM axis));
-protected:
- /**
- Administration: Where are we?. This is mainly used by Super_element and
- Score_element::calcalute_dependencies ()
- 0 means ORPHAN,
- -1 means deleted
+ static SCM ly_set_elt_property (SCM, SCM,SCM);
+ static SCM ly_get_elt_property (SCM, SCM);
+
+ bool has_interface (SCM intf);
+ void set_interface (SCM intf);
+
+ virtual void handle_broken_dependencies ();
+ virtual void handle_prebroken_dependencies ();
+
+
+ DECLARE_SMOBS(Score_element,foo);
+
+ void init ();
+
+ Dimension_cache dim_cache_[NO_AXES];
+
+public:
+ bool empty_b (Axis a) const;
+
+ Interval extent (Score_element * refpoint, Axis) const;
+
+ /**
+ translate in one direction
+ */
+ void translate_axis (Real, Axis);
+
+ /**
+ Find the offset relative to D. If D equals THIS, then it is 0.
+ Otherwise, it recursively defd as
+
+ OFFSET_ + PARENT_L_->relative_coordinate (D)
*/
-public:
- int status_i_;
-protected:
- Score_element* dependency (int) const;
- Score_element* dependent (int) const;
- int dependent_size () const;
- int dependency_size () const;
+ 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 (SCM elt_list, Axis a) const;
+
+ // duh. slim down interface here. (todo)
+ bool has_offset_callback_b (SCM callback, Axis)const;
+ void add_offset_callback (SCM callback, Axis);
+ bool has_extent_callback_b (SCM, Axis)const;
+ void set_extent_callback (SCM , Axis);
+ bool has_extent_callback_b (Axis) const;
+
- virtual void output_processing ();
- void junk_links ();
- virtual Interval do_height () const;
- virtual Interval do_width () const;
-
- /// do printing of derived info.
- virtual void do_print () const {}
- /// generate the molecule
- virtual Molecule* do_brew_molecule_p () 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 ();
-
- /// 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 do_substitute_dependency (Score_element * , Score_element *);
- virtual void do_substitute_dependent (Score_element *, Score_element *);
- virtual void do_break_processing ();
- virtual void handle_broken_dependencies ();
- virtual void handle_prebroken_dependencies ();
- virtual void handle_prebroken_dependents ();
- virtual Link_array<Score_element> get_extra_dependencies () const;
- virtual void do_unlink ();
- virtual void do_junk_links ();
+ /**
+ Invoke callbacks to get offset relative to parent.
+ */
+ Real get_offset (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;
+ DECLARE_SCHEME_CALLBACK(fixup_refpoint, (SCM));
};
+Score_element * unsmob_element (SCM);
#endif // STAFFELEM_HH
projects / lilypond.git / blobdiff