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| -rw-r--r-- | include/basegfx/point/b2dpoint.hxx | 134 |
1 files changed, 134 insertions, 0 deletions
diff --git a/include/basegfx/point/b2dpoint.hxx b/include/basegfx/point/b2dpoint.hxx new file mode 100644 index 000000000..d2f77aa49 --- /dev/null +++ b/include/basegfx/point/b2dpoint.hxx @@ -0,0 +1,134 @@ +/* -*- 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 <ostream> + +#include <basegfx/tuple/b2dtuple.hxx> +#include <basegfx/point/b2ipoint.hxx> +#include <basegfx/basegfxdllapi.h> + +namespace basegfx +{ + class B2DHomMatrix; + + /** Base Point class with two double values + + This class derives all operators and common handling for + a 2D data class from B2DTuple. All necessary extensions + which are special for points will be added here. + + @see B2DTuple + */ + class SAL_WARN_UNUSED B2DPoint : public ::basegfx::B2DTuple + { + public: + /** Create a 2D Point + + The point is initialized to (0.0, 0.0) + */ + B2DPoint() + {} + + /** Create a 2D Point + + @param fX + This parameter is used to initialize the X-coordinate + of the 2D Point. + + @param fY + This parameter is used to initialize the Y-coordinate + of the 2D Point. + */ + B2DPoint(double fX, double fY) + : B2DTuple(fX, fY) + {} + + /** Create a copy of a 2D Point + + @param rPoint + The 2D Point which will be copied. + */ + explicit B2DPoint(const ::basegfx::B2IPoint& rPoint) + : B2DTuple(rPoint) + {} + + /** constructor with tuple to allow copy-constructing + from B2DTuple-based classes + */ + B2DPoint(const ::basegfx::B2DTuple& rTuple) + : B2DTuple(rTuple) + {} + + /** *=operator to allow usage from B2DPoint, too + */ + B2DPoint& operator*=( const B2DPoint& rPnt ) + { + mfX *= rPnt.mfX; + mfY *= rPnt.mfY; + return *this; + } + + /** *=operator to allow usage from B2DPoint, too + */ + B2DPoint& operator*=(double t) + { + mfX *= t; + mfY *= t; + return *this; + } + + /** assignment operator to allow assigning the results + of B2DTuple calculations + */ + BASEGFX_DLLPUBLIC B2DPoint& operator=( const ::basegfx::B2DTuple& rPoint ); + + /** Transform point by given transformation matrix. + + The translational components of the matrix are, in + contrast to B2DVector, applied. + */ + BASEGFX_DLLPUBLIC B2DPoint& operator*=( const ::basegfx::B2DHomMatrix& rMat ); + + static const B2DPoint& getEmptyPoint() + { + return static_cast<const B2DPoint&>( ::basegfx::B2DTuple::getEmptyTuple() ); + } + }; + + // external operators + + /** Transform B2DPoint by given transformation matrix. + + Since this is a Point, translational components of the + matrix are used. + */ + BASEGFX_DLLPUBLIC B2DPoint operator*( const B2DHomMatrix& rMat, const B2DPoint& rPoint ); + + template< typename charT, typename traits > + inline std::basic_ostream<charT, traits> & operator <<( + std::basic_ostream<charT, traits> & stream, const B2DPoint& point ) + { + return stream << "(" << point.getX() << "," << point.getY() << ")"; + } + +} // end of namespace basegfx + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |