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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 16:51:28 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 16:51:28 +0000 |
commit | 940b4d1848e8c70ab7642901a68594e8016caffc (patch) | |
tree | eb72f344ee6c3d9b80a7ecc079ea79e9fba8676d /tools/source/generic/point.cxx | |
parent | Initial commit. (diff) | |
download | libreoffice-940b4d1848e8c70ab7642901a68594e8016caffc.tar.xz libreoffice-940b4d1848e8c70ab7642901a68594e8016caffc.zip |
Adding upstream version 1:7.0.4.upstream/1%7.0.4upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tools/source/generic/point.cxx')
-rw-r--r-- | tools/source/generic/point.cxx | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/tools/source/generic/point.cxx b/tools/source/generic/point.cxx new file mode 100644 index 000000000..f33fe9a28 --- /dev/null +++ b/tools/source/generic/point.cxx @@ -0,0 +1,87 @@ +/* -*- 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 . + */ + +#include <tools/gen.hxx> +#include <basegfx/numeric/ftools.hxx> + +void Point::RotateAround( Point& rPoint, + short nOrientation ) const +{ + long nX = rPoint.X(); + long nY = rPoint.Y(); + RotateAround(nX, nY, nOrientation); + rPoint.setX(nX); + rPoint.setY(nY); +} + +void Point::RotateAround( long& rX, long& rY, + short nOrientation ) const +{ + const long nOriginX = X(); + const long nOriginY = Y(); + + if ( (nOrientation >= 0) && !(nOrientation % 900) ) + { + if ( nOrientation >= 3600 ) + nOrientation %= 3600; + + if ( nOrientation ) + { + rX -= nOriginX; + rY -= nOriginY; + + if ( nOrientation == 900 ) + { + long nTemp = rX; + rX = rY; + rY = -nTemp; + } + else if ( nOrientation == 1800 ) + { + rX = -rX; + rY = -rY; + } + else /* ( nOrientation == 2700 ) */ + { + long nTemp = rX; + rX = -rY; + rY = nTemp; + } + + rX += nOriginX; + rY += nOriginY; + } + } + else + { + double nRealOrientation = nOrientation*F_PI1800; + double nCos = cos( nRealOrientation ); + double nSin = sin( nRealOrientation ); + + // Translation... + long nX = rX-nOriginX; + long nY = rY-nOriginY; + + // Rotation... + rX = + static_cast<long>(nCos*nX + nSin*nY) + nOriginX; + rY = - static_cast<long>(nSin*nX - nCos*nY) + nOriginY; + } +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |