X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Finclude%2Fbeam.hh;h=e7594f5a4d745032e12d00b608d26a5c09eb6e41;hb=947454c5cc430a9627262de4f25274a64789d3c2;hp=cd917f8d60c4d0f2add069551df003347a41a0df;hpb=45bae7c4e36d595cf545c85a53ff14c95bf4cf9c;p=lilypond.git diff --git a/lily/include/beam.hh b/lily/include/beam.hh index cd917f8d60..e7594f5a4d 100644 --- a/lily/include/beam.hh +++ b/lily/include/beam.hh @@ -1,7 +1,10 @@ /* beam.hh -- part of GNU LilyPond - (c) 1996--2000 Han-Wen Nienhuys + source file of the LilyPond music typesetter + + (c) 1996--2004 Han-Wen Nienhuys + Jan Nieuwenhuizen */ #ifndef BEAM_HH @@ -9,77 +12,69 @@ #include "lily-proto.hh" #include "lily-guile.hh" +#include "stem-info.hh" -/** a beam connects multiple stems. - - Beam adjusts the stems its owns to make sure that they reach the - beam and that point in the correct direction (urg?) - - elt_properties: - - y-position -- real (position of left edge) - - height -- real (dy) - - damping -- amount of beam slope damping. (int) - should beam slope be damped? 0: no, 1: yes, 100000: horizontal beams - - - molecule-callback -- - - beam-thickness -- weight of beams, in staffspace - - beam-space-function -- function of type multiplicity -> real (in staffspace) - - default-neutral-direction -- which direction to choose if we're in - the middle of the staff - - after-line-breaking-callback -- - - damping -- damping factor (real). - - outer-stem-length-limit -- catch suspect beam slopes, set slope to zero if - outer stem is lengthened more than this (in staffspace) - - slope-limit -- set slope to zero if slope is running away steeper than this. - -*/ class Beam { public: - static int visible_stem_count (Score_element*); - static Item* first_visible_stem (Score_element*); - static Item* last_visible_stem (Score_element*); - static bool has_interface (Score_element*); - static void set_interface (Score_element*); - static Real rest_collision_callback (Score_element *,Axis); + static int visible_stem_count (Grob*); + static Grob* first_visible_stem (Grob*); + static Grob* last_visible_stem (Grob*); + static bool has_interface (Grob*); + DECLARE_SCHEME_CALLBACK (rest_collision_callback, (SCM element, SCM axis)); Beam (SCM); - static void add_stem (Score_element*,Score_element*); - static void set_beaming (Score_element*,Beaming_info_list *); - static void set_stemlens (Score_element*); - static int get_multiplicity (Score_element*me); - static SCM brew_molecule (SCM); - static SCM before_line_breaking (SCM); - static SCM after_line_breaking (SCM); - static Molecule stem_beams (Score_element*,Item *here, Item *next, Item *prev); - + static void add_stem (Grob*,Grob*); + static bool is_knee (Grob*); + static void set_beaming (Grob*,Beaming_info_list *); + static void set_stemlens (Grob*); + static int get_beam_count (Grob*me); + static void position_beam (Grob* me); + static Real get_beam_translation (Grob*me); + static Real get_thickness (Grob*me); + + static void connect_beams (Grob*me); + DECLARE_SCHEME_CALLBACK (space_function, (SCM, SCM)); + DECLARE_SCHEME_CALLBACK (print, (SCM)); + DECLARE_SCHEME_CALLBACK (before_line_breaking, (SCM)); + DECLARE_SCHEME_CALLBACK (after_line_breaking, (SCM)); + + /* position callbacks */ + DECLARE_SCHEME_CALLBACK (least_squares, (SCM)); + DECLARE_SCHEME_CALLBACK (check_concave, (SCM)); + DECLARE_SCHEME_CALLBACK (slope_damping, (SCM)); + DECLARE_SCHEME_CALLBACK (shift_region_to_valid, (SCM)); + DECLARE_SCHEME_CALLBACK (quanting, (SCM)); + static Real score_slopes_dy (Real, Real, Real, Real, Real, bool); + + static Real score_stem_lengths (Link_array const &stems, + Array const &stem_infos, + Array const &base_stem_ys, + Array const &stem_xs, + Real xl, Real xr, + bool knee, + Real yl, Real yr); + static Real score_forbidden_quants (Real, Real, + Real, Real, Real, Real, + Drul_array, Direction, Direction); + + + static int get_direction_beam_count (Grob *me, Direction d); private: - static Direction get_default_dir (Score_element*); - static void set_stem_directions (Score_element*); - static void auto_knees (Score_element*); - static bool auto_knee (Score_element*,String gap_str, bool interstaff_b); - static void set_stem_shorten (Score_element*); - static void calc_default_position_and_height (Score_element*,Real* y, Real* dy); - static bool suspect_slope_b (Score_element*, Real y, Real dy); - static Real calc_slope_damping_f (Score_element*, Real dy); - static Real calc_stem_y_f (Score_element*, Item* s, Real y, Real dy); - static Real check_stem_length_f (Score_element*, Real y, Real dy); - static void set_stem_length (Score_element*, Real y, Real dy); - static Real quantise_dy_f (Score_element*, Real dy); - static Real quantise_y_f (Score_element*, Real y, Real dy, int quant_dir); - static int forced_stem_count (Score_element*); + static Direction get_default_dir (Grob*); + static void set_stem_directions (Grob*, Direction ); + static void consider_auto_knees (Grob*); + static void set_stem_shorten (Grob*); + static Real calc_stem_y (Grob*, Grob* s, Grob**c, + Real, Real, + Drul_array pos, bool french); + static void set_stem_lengths (Grob*); + static int forced_stem_count (Grob*); }; -#endif // BEAM_HH +const int REGION_SIZE = 2; + +#define DEBUG_QUANTING 1 + +#endif /* BEAM_HH */