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| -rw-r--r-- | include/basegfx/tuple/b3ituple.hxx | 172 |
1 files changed, 172 insertions, 0 deletions
diff --git a/include/basegfx/tuple/b3ituple.hxx b/include/basegfx/tuple/b3ituple.hxx new file mode 100644 index 000000000..7fe49ea92 --- /dev/null +++ b/include/basegfx/tuple/b3ituple.hxx @@ -0,0 +1,172 @@ +/* -*- 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 . + */ + +#pragma once + +#include <sal/types.h> +#include <basegfx/basegfxdllapi.h> + +namespace basegfx +{ + /** Base class for all Points/Vectors with three sal_Int32 values + + This class provides all methods common to Point + and Vector classes which are derived from here. + + @derive Use this class to implement Points or Vectors + which are based on three sal_Int32 values + */ + class SAL_WARN_UNUSED BASEGFX_DLLPUBLIC B3ITuple + { + protected: + sal_Int32 mnX; + sal_Int32 mnY; + sal_Int32 mnZ; + + public: + /** Create a 3D Tuple + + The tuple is initialized to (0, 0, 0) + */ + B3ITuple() + : mnX(0), + mnY(0), + mnZ(0) + {} + + /** Create a 3D Tuple + + @param nX + This parameter is used to initialize the X-coordinate + of the 3D Tuple. + + @param nY + This parameter is used to initialize the Y-coordinate + of the 3D Tuple. + + @param nZ + This parameter is used to initialize the Z-coordinate + of the 3D Tuple. + */ + B3ITuple(sal_Int32 nX, sal_Int32 nY, sal_Int32 nZ) + : mnX(nX), + mnY(nY), + mnZ(nZ) + {} + + /// get X-Coordinate of 3D Tuple + sal_Int32 getX() const + { + return mnX; + } + + /// get Y-Coordinate of 3D Tuple + sal_Int32 getY() const + { + return mnY; + } + + /// Array-access to 3D Tuple + const sal_Int32& operator[] (int nPos) const + { + // Here, normally two if(...)'s should be used. In the assumption that + // both sal_Int32 members can be accessed as an array a shortcut is used here. + // if(0 == nPos) return mnX; if(1 == nPos) return mnY; return mnZ; + return *((&mnX) + nPos); + } + + /// Array-access to 3D Tuple + sal_Int32& operator[] (int nPos) + { + // Here, normally two if(...)'s should be used. In the assumption that + // both sal_Int32 members can be accessed as an array a shortcut is used here. + // if(0 == nPos) return mnX; if(1 == nPos) return mnY; return mnZ; + return *((&mnX) + nPos); + } + + // operators + + + B3ITuple& operator+=( const B3ITuple& rTup ) + { + mnX += rTup.mnX; + mnY += rTup.mnY; + mnZ += rTup.mnZ; + return *this; + } + + B3ITuple& operator-=( const B3ITuple& rTup ) + { + mnX -= rTup.mnX; + mnY -= rTup.mnY; + mnZ -= rTup.mnZ; + return *this; + } + + B3ITuple& operator/=( const B3ITuple& rTup ) + { + mnX /= rTup.mnX; + mnY /= rTup.mnY; + mnZ /= rTup.mnZ; + return *this; + } + + B3ITuple& operator*=( const B3ITuple& rTup ) + { + mnX *= rTup.mnX; + mnY *= rTup.mnY; + mnZ *= rTup.mnZ; + return *this; + } + + B3ITuple& operator*=(sal_Int32 t) + { + mnX *= t; + mnY *= t; + mnZ *= t; + return *this; + } + + B3ITuple& operator/=(sal_Int32 t) + { + mnX /= t; + mnY /= t; + mnZ /= t; + return *this; + } + + B3ITuple operator-(void) const + { + return B3ITuple(-mnX, -mnY, -mnZ); + } + + bool operator==( const B3ITuple& rTup ) const + { + return this == &rTup || (rTup.mnX == mnX && rTup.mnY == mnY && rTup.mnZ == mnZ); + } + + bool operator!=( const B3ITuple& rTup ) const + { + return !(*this == rTup); + } + }; + +} // end of namespace basegfx + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |