/* -*- 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 .
*/
This class derives all operators and common handling for a 2D data class from B2ITuple. All necessary extensions which are special for 2D Vectors are added here.
@see B2ITuple
*/ class BASEGFX_DLLPUBLIC B2IVector : public ::basegfx::B2ITuple
{ public: /** Create a 2D Vector
The vector is initialized to (0, 0)
*/
B2IVector()
{}
/** Create a 2D Vector
@param nX This parameter is used to initialize the X-coordinate of the 2D Vector.
@param nY This parameter is used to initialize the Y-coordinate of the 2D Vector.
*/
B2IVector(sal_Int32 nX, sal_Int32 nY)
: B2ITuple(nX, nY)
{}
/** constructor with tuple to allow copy-constructing from B2ITuple-based classes
*/
B2IVector(const ::basegfx::B2ITuple& rTuple)
: B2ITuple(rTuple)
{}
/** *=operator to allow usage from B2IVector, too
*/
B2IVector& operator*=( const B2IVector& rPnt )
{
mnX *= rPnt.mnX;
mnY *= rPnt.mnY; return *this;
}
/** *=operator to allow usage from B2IVector, too
*/
B2IVector& operator*=(sal_Int32 t)
{
mnX *= t;
mnY *= t; return *this;
}
/** assignment operator to allow assigning the results of B2ITuple calculations
*/
B2IVector& operator=( const ::basegfx::B2ITuple& rVec );
/** Set the length of this 2D Vector
@param fLen The to be achieved length of the 2D Vector
*/
B2IVector& setLength(double fLen);
/** Calculate the Scalar with another 2D Vector
@param rVec The second 2D Vector
@return The Scalar value of the two involved 2D Vectors
*/ double scalar( const B2IVector& rVec ) const { return((mnX * rVec.mnX) + (mnY * rVec.mnY)); }
/** Transform vector by given transformation matrix.
Since this is a vector, translational components of the matrix are disregarded.
*/
B2IVector& operator*=( const B2DHomMatrix& rMat );
};
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