93 lines
3 KiB
C++
93 lines
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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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#pragma once
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#include <sal/types.h>
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#include <basegfx/basegfxdllapi.h>
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#include <basegfx/tuple/Tuple3D.hxx>
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namespace basegfx
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{
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/** Base class for all Points/Vectors with three sal_Int32 values
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This class provides all methods common to Point
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and Vector classes which are derived from here.
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@derive Use this class to implement Points or Vectors
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which are based on three sal_Int32 values
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*/
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class SAL_WARN_UNUSED BASEGFX_DLLPUBLIC B3ITuple : public Tuple3D<sal_Int32>
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{
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public:
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/** Create a 3D Tuple
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The tuple is initialized to (0, 0, 0)
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*/
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B3ITuple()
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: Tuple3D(0, 0, 0)
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{}
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/** Create a 3D Tuple
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@param nX
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This parameter is used to initialize the X-coordinate
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of the 3D Tuple.
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@param nY
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This parameter is used to initialize the Y-coordinate
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of the 3D Tuple.
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@param nZ
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This parameter is used to initialize the Z-coordinate
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of the 3D Tuple.
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*/
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B3ITuple(sal_Int32 nX, sal_Int32 nY, sal_Int32 nZ)
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: Tuple3D(nX, nY, nZ)
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{}
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/// Array-access to 3D Tuple
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const sal_Int32& operator[] (int nPos) const
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{
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// Here, normally two if(...)'s should be used. In the assumption that
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// both sal_Int32 members can be accessed as an array a shortcut is used here.
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// if(0 == nPos) return mnX; if(1 == nPos) return mnY; return mnZ;
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return *((&mnX) + nPos);
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}
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/// Array-access to 3D Tuple
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sal_Int32& operator[] (int nPos)
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{
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// Here, normally two if(...)'s should be used. In the assumption that
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// both sal_Int32 members can be accessed as an array a shortcut is used here.
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// if(0 == nPos) return mnX; if(1 == nPos) return mnY; return mnZ;
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return *((&mnX) + nPos);
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}
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// operators
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B3ITuple operator-(void) const
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{
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return B3ITuple(-mnX, -mnY, -mnZ);
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}
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};
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} // end of namespace basegfx
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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