include/basegfx/range/basicbox.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
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   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
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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
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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/range/basicrange.hxx>
  23
  24
  25 namespace basegfx
  26 {
  27     /** Explicitly different from BasicRange, handling the inside predicates
  28         differently.
  29
  30         This is modelled after how polygon fill algorithms set pixel -
  31         typically excluding rightmost and bottommost ones.
  32      */
  33     class BasicBox : public BasicRange< sal_Int32, Int32Traits >
  34     {
  35         typedef BasicRange< sal_Int32, Int32Traits > Base;
  36     public:
  37         BasicBox() {}
  38
  39         explicit BasicBox( sal_Int32 nValue ) :
  40             Base( nValue )
  41         {
  42         }
  43
  44         bool isEmpty() const
  45         {
  46             return mnMinimum >= mnMaximum;
  47         }
  48
  49         using Base::isInside;
  50
  51         bool isInside(sal_Int32 nValue) const
  52         {
  53             if(isEmpty())
  54             {
  55                 return false;
  56             }
  57             else
  58             {
  59                 return (nValue >= mnMinimum) && (nValue < mnMaximum);
  60             }
  61         }
  62
  63         using Base::overlaps;
  64     };
  65
  66 } // end of namespace basegfx
  67
  68 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */