Danny Robson
d1ed7107ae
It is unclear what this operator was supposed to do, and triggers a number of sign and type warnings. Re-add later if necessary under a more descriptive name.
97 lines
2.5 KiB
C++
97 lines
2.5 KiB
C++
/*
|
|
* This file is part of libgim.
|
|
*
|
|
* libgim is free software: you can redistribute it and/or modify it under the
|
|
* terms of the GNU General Public License as published by the Free Software
|
|
* Foundation, either version 3 of the License, or (at your option) any later
|
|
* version.
|
|
*
|
|
* libgim is distributed in the hope that it will be useful, but WITHOUT ANY
|
|
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
|
|
* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
|
|
* details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with libgim. If not, see <http://www.gnu.org/licenses/>.
|
|
*
|
|
* Copyright 2010 Danny Robson <danny@nerdcruft.net>
|
|
*/
|
|
|
|
|
|
#ifndef __UTIL_REGION_HPP
|
|
#define __UTIL_REGION_HPP
|
|
|
|
#include "point.hpp"
|
|
#include "types/traits.hpp"
|
|
|
|
namespace util {
|
|
/**
|
|
* A two-dimensional rectangle, with size and position.
|
|
*/
|
|
template <typename T>
|
|
struct region {
|
|
typedef T position_type;
|
|
#if 0
|
|
typedef typename always_unsigned<T>::type size_type;
|
|
#else
|
|
typedef T size_type;
|
|
#endif
|
|
|
|
T x, y;
|
|
size_type w, h;
|
|
|
|
region (T _x, T _y, size_type _w, size_type _h);
|
|
|
|
size_type area (void) const;
|
|
size_type diameter (void) const;
|
|
void scale (double factor);
|
|
|
|
bool empty (void) const;
|
|
|
|
point2 base (void) const;
|
|
point2 centre (void) const;
|
|
point2 closest (point2) const;
|
|
|
|
bool includes (const point2&) const; // inclusive of borders
|
|
bool contains (const point2&) const; // exclusive of borders
|
|
bool overlaps (const region<T>&) const; // exclusive of borders
|
|
|
|
void constrain (point2&) const;
|
|
point2 constrained (const point2&) const;
|
|
|
|
region overlap (const region<T>&) const;
|
|
|
|
bool operator ==(const region<T>& rhs) const;
|
|
bool operator !=(const region<T>& rhs) const
|
|
{ return !(*this == rhs); }
|
|
|
|
static const region<T> MAX;
|
|
static const region<T> UNIT;
|
|
|
|
void sanity (void) const;
|
|
|
|
#if 0
|
|
struct iterator {
|
|
T x, y;
|
|
T a;
|
|
size_type w, h;
|
|
|
|
iterator& operator++ (void);
|
|
iterator& operator* (void);
|
|
bool operator== (const iterator&) const;
|
|
bool operator!= (const iterator&) const;
|
|
};
|
|
|
|
iterator begin (void);
|
|
iterator end (void);
|
|
#endif
|
|
};
|
|
|
|
|
|
template <typename T>
|
|
std::ostream& operator<< (std::ostream&, const util::region<T>&);
|
|
}
|
|
|
|
|
|
#endif
|