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SbHeap.h
1 #ifndef COIN_SBHEAP_H
2 #define COIN_SBHEAP_H
3 
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35 
36 #include <Inventor/SbBasic.h>
37 #include <Inventor/lists/SbList.h>
38 #include <cstddef>
39 
40 typedef struct
41 {
42  float (*eval_func)(void*);
43  int (*get_index_func)(void*);
44  void (*set_index_func)(void*, int);
45 } SbHeapFuncs;
46 
47 class COIN_DLL_API SbHeap {
48 public:
50  const int initsize = 1024);
51  ~SbHeap();
52 
53  void emptyHeap(void);
54  int size(void) const;
55  int add(void *obj);
56  void remove(const int pos);
57  void remove(void *obj);
58  void *extractMin();
59  void *getMin();
60  void *operator[](const int idx);
61 
62  void newWeight(void *obj, int hpos = -1);
63  SbBool buildHeap(SbBool (*progresscb)(float percentage, void *data) = NULL,
64  void *data = NULL);
65  SbBool traverseHeap(SbBool (*func)(void *, void *), void *userdata) const;
66 
67 private:
68  SbHeapFuncs funcs;
69  SbList <void*> heap;
70 
71  int heapInsert(void *obj);
72  void *heapExtractMin(void);
73  void heapReserve(const int newsize);
74  void heapify(const int idx);
75 };
76 
77 #endif // !COIN_SBHEAP_H
The SbHeapFuncs struct is used to specify functions on heap elements.
Definition: SbHeap.h:40
The SbList class is a template container class for lists.
Definition: SoType.h:55
The SbHeap class is a generic heap class.
Definition: SbHeap.h:47