include/basegfx/vector/b2dsize.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
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   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  *
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  12  *   contributor license agreements. See the NOTICE file distributed
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  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 #pragma once
  21
  22 #include <basegfx/tuple/Size2D.hxx>
  23 #include <basegfx/matrix/b2dhommatrix.hxx>
  24 #include <basegfx/vector/b2isize.hxx>
  25 #include <basegfx/numeric/ftools.hxx>
  26
  27 namespace basegfx
  28 {
  29 class B2DSize : public Size2D<double>
  30 {
  31 public:
  32     B2DSize()
  33         : Size2D(0.0, 0.0)
  34     {
  35     }
  36
  37     B2DSize(double fX, double fY)
  38         : Size2D(fX, fY)
  39     {
  40     }
  41
  42     B2DSize(Size2D<double> const& rSize)
  43         : Size2D(rSize)
  44     {
  45     }
  46
  47     explicit B2DSize(B2ISize const& rSize)
  48         : Size2D(rSize.getWidth(), rSize.getHeight())
  49     {
  50     }
  51
  52     /** Transform size by given transformation matrix. */
  53     B2DSize& operator*=(const B2DHomMatrix& rMatrix)
  54     {
  55         const double fTempX(rMatrix.get(0, 0) * getWidth() + rMatrix.get(0, 1) * getHeight());
  56         const double fTempY(rMatrix.get(1, 0) * getWidth() + rMatrix.get(1, 1) * getHeight());
  57         setWidth(fTempX);
  58         setHeight(fTempY);
  59         return *this;
  60     }
  61
  62     using Size2D<double>::operator+=;
  63     using Size2D<double>::operator-=;
  64     using Size2D<double>::operator*=;
  65     using Size2D<double>::operator/=;
  66     using Size2D<double>::operator-;
  67
  68     double getLength() const
  69     {
  70         if (fTools::equalZero(getWidth()))
  71         {
  72             return fabs(getHeight());
  73         }
  74         else if (fTools::equalZero(getHeight()))
  75         {
  76             return fabs(getWidth());
  77         }
  78
  79         return hypot(getWidth(), getHeight());
  80     }
  81 };
  82
  83 template <typename charT, typename traits>
  84 inline std::basic_ostream<charT, traits>& operator<<(std::basic_ostream<charT, traits>& stream,
  85                                                      const B2DSize& size)
  86 {
  87     return stream << "(" << size.getWidth() << "," << size.getHeight() << ")";
  88 }
  89
  90 inline B2DSize operator*(B2DHomMatrix const& rMatrix, B2DSize const& rSize)
  91 {
  92     B2DSize aRes(rSize);
  93     aRes *= rMatrix;
  94     return aRes;
  95 }
  96
  97 } // end basegfx
  98
  99 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */