Line data    Source code

       1             : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2             : /*
       3             :  * This file is part of the LibreOffice project.
       4             :  *
       5             :  * This Source Code Form is subject to the terms of the Mozilla Public
       6             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       7             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
       8             :  *
       9             :  * This file incorporates work covered by the following license notice:
      10             :  *
      11             :  *   Licensed to the Apache Software Foundation (ASF) under one or more
      12             :  *   contributor license agreements. See the NOTICE file distributed
      13             :  *   with this work for additional information regarding copyright
      14             :  *   ownership. The ASF licenses this file to you under the Apache
      15             :  *   License, Version 2.0 (the "License"); you may not use this file
      16             :  *   except in compliance with the License. You may obtain a copy of
      17             :  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
      18             :  */
      19             : 
      20             : #include <basegfx/vector/b2ivector.hxx>
      21             : #include <basegfx/matrix/b2dhommatrix.hxx>
      22             : #include <basegfx/numeric/ftools.hxx>
      23             : 
      24             : namespace basegfx
      25             : {
      26           0 :     B2IVector& B2IVector::operator=( const ::basegfx::B2ITuple& rVec )
      27             :     {
      28           0 :         mnX = rVec.getX();
      29           0 :         mnY = rVec.getY();
      30           0 :         return *this;
      31             :     }
      32             : 
      33           0 :     double B2IVector::scalar( const B2IVector& rVec ) const
      34             :     {
      35           0 :         return((mnX * rVec.mnX) + (mnY * rVec.mnY));
      36             :     }
      37             : 
      38           0 :     B2IVector& B2IVector::operator*=( const B2DHomMatrix& rMat )
      39             :     {
      40           0 :         mnX = fround( rMat.get(0,0)*mnX +
      41           0 :                       rMat.get(0,1)*mnY );
      42           0 :         mnY = fround( rMat.get(1,0)*mnX +
      43           0 :                       rMat.get(1,1)*mnY );
      44             : 
      45           0 :         return *this;
      46             :     }
      47             : 
      48           0 :     B2IVector& B2IVector::setLength(double fLen)
      49             :     {
      50           0 :         double fLenNow(scalar(*this));
      51             : 
      52           0 :         if(!::basegfx::fTools::equalZero(fLenNow))
      53             :         {
      54           0 :             const double fOne(1.0);
      55             : 
      56           0 :             if(!::basegfx::fTools::equal(fOne, fLenNow))
      57             :             {
      58           0 :                 fLen /= sqrt(fLenNow);
      59             :             }
      60             : 
      61           0 :             mnX = fround( mnX*fLen );
      62           0 :             mnY = fround( mnY*fLen );
      63             :         }
      64             : 
      65           0 :         return *this;
      66             :     }
      67             : 
      68           0 :     B2IVector operator*( const B2DHomMatrix& rMat, const B2IVector& rVec )
      69             :     {
      70           0 :         B2IVector aRes( rVec );
      71           0 :         return aRes*=rMat;
      72             :     }
      73             : 
      74             : } // end of namespace basegfx
      75             : 
      76             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */