zoneminder/src/zm_box.h

71 lines
2.4 KiB
C++

//
// ZoneMinder Box Class Interfaces, $Date$, $Revision$
// Copyright (C) 2001-2008 Philip Coombes
//
// This program 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 2
// of the License, or (at your option) any later version.
//
// This program 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 this program; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
//
#ifndef ZM_BOX_H
#define ZM_BOX_H
#include "zm.h"
#include "zm_coord.h"
#ifndef SOLARIS
#include <math.h>
#else
#include <cmath>
#endif
//
// Class used for storing a box, which is defined as a region
// defined by two coordinates
//
class Box {
private:
Coord lo, hi;
Coord size;
public:
inline Box() { }
explicit inline Box( int p_size ) : lo( 0, 0 ), hi ( p_size-1, p_size-1 ), size( Coord::Range( hi, lo ) ) { }
inline Box( int p_x_size, int p_y_size ) : lo( 0, 0 ), hi ( p_x_size-1, p_y_size-1 ), size( Coord::Range( hi, lo ) ) { }
inline Box( int lo_x, int lo_y, int hi_x, int hi_y ) : lo( lo_x, lo_y ), hi( hi_x, hi_y ), size( Coord::Range( hi, lo ) ) { }
inline Box( const Coord &p_lo, const Coord &p_hi ) : lo( p_lo ), hi( p_hi ), size( Coord::Range( hi, lo ) ) { }
inline const Coord &Lo() const { return lo; }
inline int LoX() const { return lo.X(); }
inline int LoY() const { return lo.Y(); }
inline const Coord &Hi() const { return hi; }
inline int HiX() const { return hi.X(); }
inline int HiY() const { return hi.Y(); }
inline const Coord &Size() const { return size; }
inline int Width() const { return size.X(); }
inline int Height() const { return size.Y(); }
inline int Area() const { return size.X()*size.Y(); }
inline const Coord Centre() const {
int mid_x = int(round(lo.X()+(size.X()/2.0)));
int mid_y = int(round(lo.Y()+(size.Y()/2.0)));
return Coord( mid_x, mid_y );
}
inline bool Inside( const Coord &coord ) const
{
return( coord.X() >= lo.X() && coord.X() <= hi.X() && coord.Y() >= lo.Y() && coord.Y() <= hi.Y() );
}
};
#endif // ZM_BOX_H