include/basebmp/tools.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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   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
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   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
  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 #ifndef INCLUDED_BASEBMP_TOOLS_HXX
  21 #define INCLUDED_BASEBMP_TOOLS_HXX
  22
  23 #include <basegfx/range/b2ibox.hxx>
  24 #include <basegfx/point/b2ipoint.hxx>
  25 #include <vigra/tuple.hxx>
  26 #include <vigra/diff2d.hxx>
  27
  28 namespace basebmp
  29 {
  30     inline vigra::Diff2D topLeft( const basegfx::B2IBox& rRange )
  31     { return vigra::Diff2D(rRange.getMinX(),rRange.getMinY()); }
  32
  33     inline vigra::Diff2D bottomRight( const basegfx::B2IBox& rRange )
  34     { return vigra::Diff2D(rRange.getMaxX(),rRange.getMaxY()); }
  35
  36     template< class Iterator, class Accessor >
  37     inline vigra::triple<Iterator,Iterator,Accessor>
  38     destIterRange(Iterator const&          begin,
  39                   Accessor const&          accessor,
  40                   const basegfx::B2IBox& rRange)
  41     {
  42         return vigra::triple<Iterator,Iterator,Accessor>(
  43             begin + topLeft(rRange),
  44             begin + bottomRight(rRange),
  45             accessor);
  46     }
  47
  48     template< class Iterator, class Accessor >
  49     inline vigra::triple<Iterator,Iterator,Accessor>
  50     srcIterRange(Iterator const&          begin,
  51                  Accessor const&          accessor,
  52                  const basegfx::B2IBox& rRange)
  53     {
  54         return vigra::triple<Iterator,Iterator,Accessor>(
  55             begin + topLeft(rRange),
  56             begin + bottomRight(rRange),
  57             accessor);
  58     }
  59
  60     template< class Iterator, class Accessor >
  61     inline vigra::pair<Iterator,Accessor>
  62     srcIter(Iterator const&          begin,
  63             Accessor const&          accessor,
  64             const basegfx::B2IPoint& rPt)
  65     {
  66         return vigra::pair<Iterator,Accessor>(
  67             begin + vigra::Diff2D(rPt.getX(),rPt.getY()),
  68             accessor);
  69     }
  70
  71     template< class Iterator, class Accessor >
  72     inline vigra::pair<Iterator,Accessor>
  73     destIter(Iterator const&          begin,
  74              Accessor const&          accessor,
  75              const basegfx::B2IPoint& rPt)
  76     {
  77         return vigra::pair<Iterator,Accessor>(
  78             begin + vigra::Diff2D(rPt.getX(),rPt.getY()),
  79             accessor);
  80     }
  81 }
  82
  83 #endif /* INCLUDED_BASEBMP_TOOLS_HXX */
  84
  85 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */