1 #ifndef __CANVAS_GROUP_H__
2 #define __CANVAS_GROUP_H__
6 #include "canvas/item.h"
7 #include "canvas/types.h"
8 #include "canvas/lookup_table.h"
10 namespace ArdourCanvas {
12 class Group : public Item
15 explicit Group (Group *);
16 explicit Group (Group *, Duple);
19 void render (Rect const &, Cairo::RefPtr<Cairo::Context>) const;
20 virtual void compute_bounding_box () const;
24 std::list<Item*> const & items () const {
28 void raise_child_to_top (Item *);
29 void raise_child (Item *, int);
30 void lower_child_to_bottom (Item *);
31 void child_changed ();
33 void add_items_at_point (Duple, std::vector<Item const *> &) const;
35 void dump (std::ostream&) const;
37 static int default_items_per_cell;
41 explicit Group (Canvas *);
44 friend class ::OptimizingLookupTableTest;
46 Group (Group const &);
47 void ensure_lut () const;
48 void invalidate_lut () const;
50 /* our items, from lowest to highest in the stack */
51 std::list<Item*> _items;
53 mutable LookupTable* _lut;