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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:06:44 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:06:44 +0000
commited5640d8b587fbcfed7dd7967f3de04b37a76f26 (patch)
tree7a5f7c6c9d02226d7471cb3cc8fbbf631b415303 /tools/source/generic/point.cxx
parentInitial commit. (diff)
downloadlibreoffice-ed5640d8b587fbcfed7dd7967f3de04b37a76f26.tar.xz
libreoffice-ed5640d8b587fbcfed7dd7967f3de04b37a76f26.zip
Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream
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.cxx86
1 files changed, 86 insertions, 0 deletions
diff --git a/tools/source/generic/point.cxx b/tools/source/generic/point.cxx
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+++ b/tools/source/generic/point.cxx
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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/.
+ *
+ * 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>
+
+void Point::RotateAround( Point& rPoint,
+ Degree10 nOrientation ) const
+{
+ tools::Long nX = rPoint.X();
+ tools::Long nY = rPoint.Y();
+ RotateAround(nX, nY, nOrientation);
+ rPoint.setX(nX);
+ rPoint.setY(nY);
+}
+
+void Point::RotateAround( tools::Long& rX, tools::Long& rY,
+ Degree10 nOrientation ) const
+{
+ const tools::Long nOriginX = X();
+ const tools::Long nOriginY = Y();
+
+ if ( (nOrientation >= 0_deg10) && !(nOrientation % 900_deg10) )
+ {
+ if ( nOrientation >= 3600_deg10 )
+ nOrientation %= 3600_deg10;
+
+ if ( nOrientation )
+ {
+ rX -= nOriginX;
+ rY -= nOriginY;
+
+ if ( nOrientation == 900_deg10 )
+ {
+ tools::Long nTemp = rX;
+ rX = rY;
+ rY = -nTemp;
+ }
+ else if ( nOrientation == 1800_deg10 )
+ {
+ rX = -rX;
+ rY = -rY;
+ }
+ else /* ( nOrientation == 2700 ) */
+ {
+ tools::Long nTemp = rX;
+ rX = -rY;
+ rY = nTemp;
+ }
+
+ rX += nOriginX;
+ rY += nOriginY;
+ }
+ }
+ else
+ {
+ double nRealOrientation = toRadians(nOrientation);
+ double nCos = cos( nRealOrientation );
+ double nSin = sin( nRealOrientation );
+
+ // Translation...
+ tools::Long nX = rX-nOriginX;
+ tools::Long nY = rY-nOriginY;
+
+ // Rotation...
+ rX = + static_cast<tools::Long>(nCos*nX + nSin*nY) + nOriginX;
+ rY = - static_cast<tools::Long>(nSin*nX - nCos*nY) + nOriginY;
+ }
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */