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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#pragma once
#include <sal/types.h>
#include <basegfx/basegfxdllapi.h>
namespace basegfx
{
/** Base class for all Points/Vectors with two sal_Int32 values
This class provides all methods common to Point
and Vector classes which are derived from here.
@derive Use this class to implement Points or Vectors
which are based on two sal_Int32 values
*/
class SAL_WARN_UNUSED BASEGFX_DLLPUBLIC B2ITuple
{
protected:
sal_Int32 mnX;
sal_Int32 mnY;
public:
/** Create a 2D Tuple
The tuple is initialized to (0, 0)
*/
B2ITuple()
: mnX(0),
mnY(0)
{}
/** Create a 2D Tuple
@param fX
This parameter is used to initialize the X-coordinate
of the 2D Tuple.
@param fY
This parameter is used to initialize the Y-coordinate
of the 2D Tuple.
*/
B2ITuple(sal_Int32 fX, sal_Int32 fY)
: mnX( fX ),
mnY( fY )
{}
/// Get X-Coordinate of 2D Tuple
sal_Int32 getX() const
{
return mnX;
}
/// Get Y-Coordinate of 2D Tuple
sal_Int32 getY() const
{
return mnY;
}
/// Set X-Coordinate of 2D Tuple
void setX(sal_Int32 fX)
{
mnX = fX;
}
/// Set Y-Coordinate of 2D Tuple
void setY(sal_Int32 fY)
{
mnY = fY;
}
/// Array-access to 2D Tuple
const sal_Int32& operator[] (int nPos) const
{
// Here, normally one if(...) should be used. In the assumption that
// both sal_Int32 members can be accessed as an array a shortcut is used here.
// if(0 == nPos) return mnX; return mnY;
return *((&mnX) + nPos);
}
/// Array-access to 2D Tuple
sal_Int32& operator[] (int nPos)
{
// Here, normally one if(...) should be used. In the assumption that
// both sal_Int32 members can be accessed as an array a shortcut is used here.
// if(0 == nPos) return mnX; return mnY;
return *((&mnX) + nPos);
}
// operators
B2ITuple& operator+=( const B2ITuple& rTup )
{
mnX += rTup.mnX;
mnY += rTup.mnY;
return *this;
}
B2ITuple& operator-=( const B2ITuple& rTup )
{
mnX -= rTup.mnX;
mnY -= rTup.mnY;
return *this;
}
B2ITuple& operator/=( const B2ITuple& rTup )
{
mnX /= rTup.mnX;
mnY /= rTup.mnY;
return *this;
}
B2ITuple& operator*=( const B2ITuple& rTup )
{
mnX *= rTup.mnX;
mnY *= rTup.mnY;
return *this;
}
B2ITuple& operator*=(sal_Int32 t)
{
mnX *= t;
mnY *= t;
return *this;
}
B2ITuple& operator/=(sal_Int32 t)
{
mnX /= t;
mnY /= t;
return *this;
}
B2ITuple operator-(void) const
{
return B2ITuple(-mnX, -mnY);
}
bool equalZero() const
{
return mnX == 0 && mnY == 0;
}
bool operator==( const B2ITuple& rTup ) const
{
return this == &rTup || (rTup.mnX == mnX && rTup.mnY == mnY);
}
bool operator!=( const B2ITuple& rTup ) const
{
return !(*this == rTup);
}
};
// external operators
inline B2ITuple operator+(const B2ITuple& rTupA, const B2ITuple& rTupB)
{
B2ITuple aSum(rTupA);
aSum += rTupB;
return aSum;
}
inline B2ITuple operator-(const B2ITuple& rTupA, const B2ITuple& rTupB)
{
B2ITuple aSub(rTupA);
aSub -= rTupB;
return aSub;
}
inline B2ITuple operator*(sal_Int32 t, const B2ITuple& rTup)
{
B2ITuple aNew(rTup);
aNew *= t;
return aNew;
}
} // end of namespace basegfx
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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