Milena (Olena)
User documentation 2.0a Id
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00001 // Copyright (C) 2007, 2008, 2009 EPITA Research and Development Laboratory (LRDE) 00002 // 00003 // This file is part of Olena. 00004 // 00005 // Olena is free software: you can redistribute it and/or modify it under 00006 // the terms of the GNU General Public License as published by the Free 00007 // Software Foundation, version 2 of the License. 00008 // 00009 // Olena is distributed in the hope that it will be useful, 00010 // but WITHOUT ANY WARRANTY; without even the implied warranty of 00011 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00012 // General Public License for more details. 00013 // 00014 // You should have received a copy of the GNU General Public License 00015 // along with Olena. If not, see <http://www.gnu.org/licenses/>. 00016 // 00017 // As a special exception, you may use this file as part of a free 00018 // software project without restriction. Specifically, if other files 00019 // instantiate templates or use macros or inline functions from this 00020 // file, or you compile this file and link it with other files to produce 00021 // an executable, this file does not by itself cause the resulting 00022 // executable to be covered by the GNU General Public License. This 00023 // exception does not however invalidate any other reasons why the 00024 // executable file might be covered by the GNU General Public License. 00025 00026 #ifndef MLN_WIN_BACKDIAG2D_HH 00027 # define MLN_WIN_BACKDIAG2D_HH 00028 00032 00033 # include <mln/core/internal/classical_window_base.hh> 00034 # include <mln/core/alias/dpoint2d.hh> 00035 00036 00037 namespace mln 00038 { 00039 00040 mln_internal_add_classical_window_trait(backdiag2d); 00041 00042 00043 namespace win 00044 { 00045 00063 struct backdiag2d : public internal::classical_window_base< dpoint2d, backdiag2d > 00064 { 00071 backdiag2d(unsigned length); 00072 00075 unsigned length() const; 00076 00080 unsigned delta_() const; 00081 00082 void print_(std::ostream& ostr) const; 00083 00084 protected: 00085 unsigned length_; 00086 }; 00087 00088 00089 00090 # ifndef MLN_INCLUDE_ONLY 00091 00092 inline 00093 backdiag2d::backdiag2d(unsigned length) 00094 : length_(length) 00095 { 00096 mln_precondition(length % 2 == 1); 00097 const def::coord 00098 dcol = static_cast<def::coord>(length / 2), 00099 minus_dcol = static_cast<def::coord>(- dcol); 00100 for (def::coord col = minus_dcol; col <= dcol; ++col) 00101 insert(dpoint2d(col, col)); 00102 } 00103 00104 inline 00105 unsigned backdiag2d::length() const 00106 { 00107 return length_; 00108 } 00109 00110 inline 00111 unsigned backdiag2d::delta_() const 00112 { 00113 return length_ / 2; 00114 } 00115 00116 inline 00117 void backdiag2d::print_(std::ostream& ostr) const 00118 { 00119 ostr << "[backdiag 2d: length=" << length_ << ']'; 00120 } 00121 00122 # endif // ! MLN_INCLUDE_ONLY 00123 00124 } // end of namespace mln::win 00125 00126 } // end of namespace mln 00127 00128 00129 00130 #endif // ! MLN_WIN_BACKDIAG2D_HH