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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/.
*/
#pragma once
#include <sal/config.h>
#include <sal/types.h>
#include <tools/long.hxx>
#include <cassert>
#include <limits>
#include <type_traits>
template<typename T>
inline
typename std::enable_if<
std::is_signed<T>::value || std::is_floating_point<T>::value, long >::type
MinMax(T nVal, tools::Long nMin, tools::Long nMax)
{
assert(nMin <= nMax);
if (nVal >= nMin)
{
if (nVal <= nMax)
return static_cast<tools::Long>(nVal);
else
return nMax;
}
else
{
return nMin;
}
}
template<typename T>
inline
typename std::enable_if<
std::is_unsigned<T>::value, long >::type
MinMax(T nVal, tools::Long nMin, tools::Long nMax)
{
assert(nMin <= nMax);
if (nMax < 0)
{
return nMax;
}
else
{
if (nMin < 0 || nVal >= static_cast<unsigned long>(nMin))
{
if (nVal <= static_cast<unsigned long>(nMax))
return static_cast<tools::Long>(nVal);
else
return nMax;
}
else
{
return nMin;
}
}
}
inline sal_uInt32 AlignedWidth4Bytes(sal_uInt32 nWidthBits)
{
if (nWidthBits > SAL_MAX_UINT32 - 31)
nWidthBits = SAL_MAX_UINT32;
else
nWidthBits += 31;
return (nWidthBits >> 5) << 2;
}
inline tools::Long FRound( double fVal )
{
return fVal > 0.0
? fVal == double(std::numeric_limits<tools::Long>::max())
? std::numeric_limits<tools::Long>::max() : static_cast<tools::Long>( fVal + 0.5 )
: static_cast<tools::Long>( fVal - 0.5 );
}
//valid range: (-180,180]
template <typename T>
[[nodiscard]] inline typename std::enable_if<std::is_signed<T>::value, T>::type
NormAngle180(T angle)
{
while (angle <= -180)
angle += 360;
while (angle > 180)
angle -= 360;
return angle;
}
//valid range: [0,360)
template <typename T> [[nodiscard]] inline T NormAngle360(T angle)
{
while (angle < 0)
angle += 360;
while (angle >= 360)
angle -= 360;
return angle;
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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