source file of the GNU LilyPond music typesetter
- (c) 1999 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1999--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
#include "spanner.hh"
#include "item.hh"
-struct Side_position_interface
+
+/**
+ 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?)
+
+ 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.
+
+*/
+struct Side_position
{
- Score_element * elt_l_;
public:
- Side_position_interface (Score_element const*);
- static Real side_position (Dimension_cache const *);
- static Real self_alignment (Dimension_cache const *);
- static Real aligned_side (Dimension_cache const *);
- static Real quantised_position (Dimension_cache const*);
- void set_axis (Axis);
- void set_quantised (Axis);
- Axis get_axis () const;
-
- bool supported_b () const;
- bool has_interface_b () const;
- void add_support (Score_element*);
-
- Direction get_direction () const;
- void set_direction (Direction);
+ 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);
};