-/*
+/*
side-position-interface.hh -- declare Side_position_interface
-
+
source file of the GNU LilyPond music typesetter
-
- (c) 1999--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
-
- */
+
+ (c) 1999--2008 Han-Wen Nienhuys <hanwen@xs4all.nl>
+*/
#ifndef SIDE_POSITION_INTERFACE_HH
#define SIDE_POSITION_INTERFACE_HH
-#include "spanner.hh"
-#include "item.hh"
-
-
-/**
- Position victim object (ELT_L_) next to other objects (the support).
-
- side-support -- list of score elements
-
- direction -- where to put the victim object (left or right?)
+#include "grob-interface.hh"
+#include "lily-proto.hh"
- side-relative-direction -- if set: get the direction from a different object, and multiply by this.
-
- direction-source -- in case side-relative-direction is set, where
- to get the direction
-
- minimum-space -- minimum distance that the victim should move
- (after padding)
-
- padding -- add this much extra space between victim and support
-
- self-alignment-X -- real number: -1 = left aligned, 0 = center, 1
- right-aligned in X direction.
-
- Set to an element pointer, if you want that element to be the center.
-
- self-alignment-Y -- like self-alignment-X but for Y axis
-
- TODO: move out unrelated callbacks.
-
- TODO: reduce number of methods.
+/*
+ TODO: move out unrelated callbacks.
+ TODO: reduce number of methods.
*/
-struct Side_position
+struct Side_position_interface
{
public:
- static Real side_position (Score_element *, Axis);
- static Real aligned_on_self (Score_element *, Axis);
- static Real aligned_side (Score_element *, Axis);
- static Real quantised_position (Score_element *, Axis);
- static Real centered_on_parent (Score_element *, Axis);
- static void set_axis (Score_element*,Axis);
- static void set_minimum_space (Score_element*,Real);
- static void set_padding (Score_element*,Real);
- static Axis get_axis (Score_element*) ;
- static bool supported_b (Score_element*) ;
- static bool has_interface (Score_element*) ;
- static void add_support (Score_element*,Score_element*);
- static void add_staff_support (Score_element*);
- static Direction get_direction (Score_element*);
- static void set_direction (Score_element*,Direction);
-};
+ DECLARE_SCHEME_CALLBACK (y_aligned_on_support_refpoints, (SCM element));
+ DECLARE_SCHEME_CALLBACK (pure_y_aligned_on_support_refpoints, (SCM element, SCM start, SCM end));
+ DECLARE_SCHEME_CALLBACK (x_aligned_side, (SCM element, SCM current));
+ DECLARE_SCHEME_CALLBACK (y_aligned_side, (SCM element, SCM current));
+ DECLARE_SCHEME_CALLBACK (pure_y_aligned_side, (SCM element, SCM start, SCM end, SCM current));
+ DECLARE_SCHEME_CALLBACK (calc_cross_staff, (SCM element));
+
+ static SCM aligned_side (Grob*me, Axis a, bool pure, int start, int end, Real *current_off_ptr);
+
+ static SCM general_side_position (Grob *, Axis, bool, bool my_extents,
+ bool pure, int start, int end, Real *current_off);
+ static Axis get_axis (Grob *);
+ static void set_axis (Grob *, Axis);
+ DECLARE_GROB_INTERFACE();
+ static void add_support (Grob *, Grob *);
+ static void add_staff_support (Grob *);
+ static Direction get_direction (Grob *);
+};
#endif /* SIDE_POSITION_INTERFACE_HH */