resize_image_if.cc

// Copyright (C) 2007, 2008, 2009 EPITA Research and Development Laboratory (LRDE)
//
// This file is part of Olena.
//
// Olena is free software: you can redistribute it and/or modify it under
// the terms of the GNU General Public License as published by the Free
// Software Foundation, version 2 of the License.
//
// Olena is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
// General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Olena.  If not, see <http://www.gnu.org/licenses/>.
//
// As a special exception, you may use this file as part of a free
// software project without restriction.  Specifically, if other files
// instantiate templates or use macros or inline functions from this
// file, or you compile this file and link it with other files to produce
// an executable, this file does not by itself cause the resulting
// executable to be covered by the GNU General Public License.  This
// exception does not however invalidate any other reasons why the
// executable file might be covered by the GNU General Public License.

#include <mln/core/image/image2d.hh>
#include <mln/core/image/dmorph/sub_image.hh>
#include <mln/core/image/dmorph/image_if.hh>
#include <mln/fun/p2b/chess.hh>

#include <mln/border/get.hh>
#include <mln/literal/origin.hh>
#include <mln/border/resize.hh>

struct my_box2d : mln::Function_v2b< my_box2d >
{
  my_box2d(const mln::box2d& b)
    : b_(b)
  {
  }
  mln::box2d b_;
  bool operator()(const mln::point2d& p) const
  {
    return b_.has(p);
  }
};



int main()
{
  using namespace mln;

  typedef image2d<int> I;
  unsigned border = 42;
  unsigned new_border = 51;

  box2d b(literal::origin, point2d(1,1));
  I ima(3,3, border);

  mln_assertion(border::get(ima) == border);
  mln_assertion(ima.has(point2d(2,2)) == true);

  my_box2d f_b(b);
  image_if<I, my_box2d> imaif(ima, f_b);
  mln_assertion(imaif.has(point2d(2,2)) == false &&
                  ima.has(point2d(2,2)) == true);


  mln_assertion(border::get(imaif) == 0);
  border::resize (imaif, new_border);
  mln_assertion(border::get(imaif) == 0);
}