office-gobmx/include/tools/UnitConversion.hxx
Tomaž Vajngerl 5f8f8889a4 vcl: add conversion point to twip int64 & double values
Change-Id: Id54d28b57c055269259317521f59d37dcdf9a456
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/95274
Tested-by: Tomaž Vajngerl <quikee@gmail.com>
Reviewed-by: Tomaž Vajngerl <quikee@gmail.com>
2020-06-01 18:46:13 +02:00

40 lines
1.3 KiB
C++

/* -*- 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
constexpr sal_Int64 convertTwipToMm100(sal_Int64 n)
{
return (n >= 0) ? (n * 127 + 36) / 72 : (n * 127 - 36) / 72;
}
constexpr sal_Int64 convertMm100ToTwip(sal_Int64 n)
{
return (n >= 0) ? (n * 72 + 63) / 127 : (n * 72 - 63) / 127;
}
constexpr sal_Int64 convertPointToTwip(sal_Int64 nNumber) { return nNumber * 20; }
constexpr sal_Int64 convertPointToMm100(sal_Int64 nNumber)
{
return convertTwipToMm100(convertPointToTwip(nNumber));
}
constexpr double convertPointToTwip(double fNumber) { return fNumber * 20.0; }
constexpr double convertPointToMm100(double fNumber) { return fNumber * 35.27777777778; }
// Convert PPT's "master unit" (1/576 inch) to twips
constexpr sal_Int64 convertMasterUnitToTwip(sal_Int64 n) { return n * 2540.0 / 576.0; }
// Convert twips to PPT's "master unit"
constexpr sal_Int64 convertTwipToMasterUnit(sal_Int64 n) { return n / (2540.0 / 576.0); }
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */