2633d5f97f
See tdf#42949 for motivation Change-Id: Ifc253bf800bb1468b5774663a93f4fb30bec81d3 Reviewed-on: https://gerrit.libreoffice.org/c/core/+/113657 Tested-by: Jenkins Reviewed-by: Miklos Vajna <vmiklos@collabora.com>
100 lines
2.3 KiB
C++
100 lines
2.3 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*/
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#pragma once
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#include <sal/config.h>
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#include <sal/types.h>
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#include <tools/long.hxx>
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#include <cassert>
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#include <type_traits>
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template<typename T>
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inline
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typename std::enable_if<
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std::is_signed<T>::value || std::is_floating_point<T>::value, long >::type
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MinMax(T nVal, tools::Long nMin, tools::Long nMax)
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{
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assert(nMin <= nMax);
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if (nVal >= nMin)
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{
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if (nVal <= nMax)
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return static_cast<tools::Long>(nVal);
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else
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return nMax;
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}
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else
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{
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return nMin;
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}
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}
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template<typename T>
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inline
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typename std::enable_if<
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std::is_unsigned<T>::value, long >::type
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MinMax(T nVal, tools::Long nMin, tools::Long nMax)
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{
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assert(nMin <= nMax);
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if (nMax < 0)
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{
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return nMax;
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}
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else
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{
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if (nMin < 0 || nVal >= static_cast<unsigned long>(nMin))
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{
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if (nVal <= static_cast<unsigned long>(nMax))
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return static_cast<tools::Long>(nVal);
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else
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return nMax;
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}
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else
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{
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return nMin;
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}
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}
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}
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inline sal_uInt32 AlignedWidth4Bytes(sal_uInt32 nWidthBits)
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{
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if (nWidthBits > SAL_MAX_UINT32 - 31)
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nWidthBits = SAL_MAX_UINT32;
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else
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nWidthBits += 31;
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return (nWidthBits >> 5) << 2;
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}
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inline tools::Long FRound( double fVal )
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{
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return fVal > 0.0 ? static_cast<tools::Long>( fVal + 0.5 ) : -static_cast<tools::Long>( -fVal + 0.5 );
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}
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//valid range: (-180,180]
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template <typename T>
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[[nodiscard]] inline typename std::enable_if<std::is_signed<T>::value, T>::type
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NormAngle180(T angle)
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{
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while (angle <= -180)
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angle += 360;
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while (angle > 180)
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angle -= 360;
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return angle;
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}
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//valid range: [0,360)
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template <typename T> [[nodiscard]] inline T NormAngle360(T angle)
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{
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while (angle < 0)
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angle += 360;
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while (angle >= 360)
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angle -= 360;
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return angle;
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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