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// $Header:$
#ifndef BBOXSET_HH
#define BBOXSET_HH
#include <assert.h>
#include <iostream>
#include <set>
#include "bbox.hh"
#include "defs.hh"
#include "vect.hh"
using namespace std;
// Forward declaration
template<class T, int D> class bboxset;
// template<class T,int D>
// bboxset<T,D> operator+ (const bbox<T,D>& b1, const bbox<T,D>& b2);
// template<class T,int D>
// bboxset<T,D> operator+ (const bbox<T,D>& b, const bboxset<T,D>& s);
// template<class T,int D>
// bboxset<T,D> operator- (const bbox<T,D>& b1, const bbox<T,D>& b2);
// template<class T,int D>
// bboxset<T,D> operator- (const bbox<T,D>& b, const bboxset<T,D>& s);
// Output
template<class T,int D>
ostream& operator<< (ostream& os, const bboxset<T,D>& s);
// Bounding box class
template<class T, int D>
class bboxset {
// Types
typedef bbox<T,D> box;
typedef set<box> bset;
// Fields
bset bs;
// Invariant:
// All bboxes have the same stride.
// No bbox is empty.
// The bboxes don't overlap.
public:
// Constructors
bboxset ();
bboxset (const box& b);
bboxset (const bboxset& s);
bboxset (const bset& bs);
// Invariant
bool invariant () const;
// Normalisation
void normalize ();
// Accessors
bool empty () const { return bs.empty(); }
T size () const;
int setsize () const { return bs.size(); }
// Add (bboxes that don't overlap)
bboxset& operator+= (const box& b);
bboxset& operator+= (const bboxset& s);
bboxset operator+ (const box& b) const;
bboxset operator+ (const bboxset& s) const;
static bboxset plus (const box& b1, const box& b2);
static bboxset plus (const box& b, const bboxset& s);
// Union
bboxset& operator|= (const box& b);
bboxset& operator|= (const bboxset& s);
bboxset operator| (const box& b) const;
bboxset operator| (const bboxset& s) const;
// Intersection
bboxset operator& (const box& b) const;
bboxset operator& (const bboxset& s) const;
bboxset& operator&= (const box& b);
bboxset& operator&= (const bboxset& s);
// Difference
// friend bboxset operator- <T,D>(const box& b1, const box& b2);
static bboxset minus (const box& b1, const box& b2);
bboxset operator- (const box& b) const;
bboxset& operator-= (const box& b);
bboxset& operator-= (const bboxset& s);
bboxset operator- (const bboxset& s) const;
// friend bboxset operator- <T,D>(const box& b, const bboxset& s);
static bboxset minus (const box& b, const bboxset& s);
// Equality
bool operator== (const bboxset& s) const;
bool operator!= (const bboxset& s) const;
bool operator< (const bboxset& s) const;
bool operator<= (const bboxset& s) const;
bool operator> (const bboxset& s) const;
bool operator>= (const bboxset& s) const;
// Iterators
typedef typename bset::const_iterator const_iterator;
typedef typename bset::iterator iterator;
const_iterator begin () const { return bs.begin(); }
const_iterator end () const { return bs.end(); }
// iterator begin () const { return bs.begin(); }
// iterator end () const { return bs.end(); }
// Output
void output (ostream& os) const;
};
template<class T,int D>
inline bboxset<T,D> operator+ (const bbox<T,D>& b1, const bbox<T,D>& b2) {
return bboxset<T,D>::plus(b1,b2);
}
template<class T,int D>
inline bboxset<T,D> operator+ (const bbox<T,D>& b, const bboxset<T,D>& s) {
return bboxset<T,D>::plus(b,s);
}
template<class T,int D>
inline bboxset<T,D> operator- (const bbox<T,D>& b1, const bbox<T,D>& b2) {
return bboxset<T,D>::minus(b1,b2);
}
template<class T,int D>
inline bboxset<T,D> operator- (const bbox<T,D>& b, const bboxset<T,D>& s) {
return bboxset<T,D>::minus(b,s);
}
// Output
template<class T,int D>
inline ostream& operator<< (ostream& os, const bboxset<T,D>& s) {
s.output(os);
return os;
}
#endif // BBOXSET_HH
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