2 side-position-interface.hh -- declare Side_position_interface
4 source file of the GNU LilyPond music typesetter
6 (c) 1999--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
10 #ifndef SIDE_POSITION_INTERFACE_HH
11 #define SIDE_POSITION_INTERFACE_HH
18 Position victim object (ELT_L_) next to other objects (the support).
20 side-support -- list of score elements
22 direction -- where to put the victim object (left or right?)
24 side-relative-direction -- if set: get the direction from a different object, and multiply by this.
26 direction-source -- in case side-relative-direction is set, where
29 minimum-space -- minimum distance that the victim should move
32 padding -- add this much extra space between victim and support
34 self-alignment-X -- real number: -1 = left aligned, 0 = center, 1
35 right-aligned in X direction.
37 Set to an element pointer, if you want that element to be the center.
39 self-alignment-Y -- like self-alignment-X but for Y axis
41 TODO: move out unrelated callbacks.
43 TODO: reduce number of methods.
49 static Real side_position (Score_element *, Axis);
50 static Real aligned_on_self (Score_element *, Axis);
51 static Real aligned_side (Score_element *, Axis);
52 static Real quantised_position (Score_element *, Axis);
53 static Real centered_on_parent (Score_element *, Axis);
54 static void set_axis (Score_element*,Axis);
55 static void set_minimum_space (Score_element*,Real);
56 static void set_padding (Score_element*,Real);
57 static Axis get_axis (Score_element*) ;
58 static bool supported_b (Score_element*) ;
59 static bool has_interface (Score_element*) ;
60 static void add_support (Score_element*,Score_element*);
61 static void add_staff_support (Score_element*);
62 static Direction get_direction (Score_element*);
63 static void set_direction (Score_element*,Direction);
67 #endif /* SIDE_POSITION_INTERFACE_HH */