office-gobmx/include/tools/degree.hxx
Noel 11e52fe297 introduce Degree100 strong_int type
Change-Id: I78f837a1340be0ca5c49097f543a481b7b43a632
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/108367
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
2021-01-02 15:26:38 +01:00

45 lines
1.7 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
/*
* 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/types.h>
#include <o3tl/strong_int.hxx>
#include <cstdlib>
#include <math.h>
/** tenths of a Degree, normally rotation */
typedef o3tl::strong_int<sal_Int16, struct Degree10Tag> Degree10;
/** custom literal */
constexpr Degree10 operator""_deg10(unsigned long long n) { return Degree10{ n }; }
/** hundredths of a Degree, normally rotation */
typedef o3tl::strong_int<sal_Int32, struct Degree100Tag> Degree100;
// Android has trouble calling the correct overload of std::abs
#ifdef ANDROID
inline Degree100 abs(Degree100 x) { return Degree100(std::abs(static_cast<int>(x.get()))); }
#else
inline Degree100 abs(Degree100 x) { return Degree100(std::abs(x.get())); }
#endif
/** custom literal */
constexpr Degree100 operator""_deg100(unsigned long long n) { return Degree100{ n }; }
/** conversion functions */
inline Degree100 toDegree100(Degree10 x) { return Degree100(x.get() * 10); }
inline double toRadians(Degree10 x) { return x.get() * (M_PI / 1800.0); }
inline double toDegrees(Degree10 x) { return x.get() / 10.0; }
inline Degree10 toDegree10(Degree100 x) { return Degree10((x.get() + 5) / 10); }
inline double toRadians(Degree100 x) { return x.get() * (M_PI / 18000.0); }
inline double toDegrees(Degree100 x) { return x.get() / 100.0; }
/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */