2006-10-20 Thierry GERAUD &lt;theo(a)tegucigalpa.lrde.epita.fr&gt; Add morpher based on mutators. * tests/value/accessor.cc: New. * tests/value/Makefile.am: Update. * oln/morpher/thru_mfun.hh: New. * oln/value/accessor.hh: New. * oln/Makefile.am: Update. * oln/morpher/thru_fun.hh: Use shortcuts. Index: tests/value/accessor.cc =================================================================== --- tests/value/accessor.cc (revision 0) +++ tests/value/accessor.cc (revision 0) @@ -0,0 +1,51 @@ +// Copyright (C) 2006 EPITA Research and Development Laboratory +// +// This file is part of the Olena Library. This library is free +// software; you can redistribute it and/or modify it under the terms +// of the GNU General Public License version 2 as published by the +// Free Software Foundation. +// +// This library 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 this library; see the file COPYING. If not, write to +// the Free Software Foundation, 51 Franklin Street, Fifth Floor, +// Boston, MA 02111-1307, USA. +// +// As a special exception, you may use this file as part of a free +// software library 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. + +/// Test oln::value::a_*. +#include <iostream> + +#include <oln/color/rgb.hh> + +#include <oln/basics2d.hh> +#include <oln/value/accessor.hh> +#include <oln/debug/print.hh> + + +int main() +{ + using namespace oln; + + typedef color::rgb_<int> rgb_t; + rgb_t c; + + image2d<rgb_t> ima(3,3); + point2d p(0,0); + + ima(p).red() = 51; + assert( a_red(ima)(p) == 51 ); + +} Index: tests/value/Makefile.am =================================================================== --- tests/value/Makefile.am (revision 664) +++ tests/value/Makefile.am (working copy) @@ -19,9 +19,11 @@ CXXFLAGS += $(TESTS_CXXFLAGS) check_PROGRAMS = \ + accessor \ grey # Value. +accessor_SOURCES = accessor.cc grey_SOURCES = grey.cc Index: oln/Makefile.am =================================================================== --- oln/Makefile.am (revision 664) +++ oln/Makefile.am (working copy) @@ -168,8 +168,10 @@ morpher/tags.hh \ morpher/slice.hh \ morpher/thru_fun.hh \ + morpher/thru_mfun.hh \ morpher/value_cast.hh \ \ + value/accessor.hh \ value/all.hh \ value/default.hh \ value/greylevel.hh \ Index: oln/morpher/thru_mfun.hh =================================================================== --- oln/morpher/thru_mfun.hh (revision 0) +++ oln/morpher/thru_mfun.hh (revision 0) @@ -0,0 +1,185 @@ +// Copyright (C) 2006 EPITA Research and Development Laboratory +// +// This file is part of the Olena Library. This library is free +// software; you can redistribute it and/or modify it under the terms +// of the GNU General Public License version 2 as published by the +// Free Software Foundation. +// +// This library 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 this library; see the file COPYING. If not, write to +// the Free Software Foundation, 51 Franklin Street, Fifth Floor, +// Boston, MA 02111-1307, USA. +// +// As a special exception, you may use this file as part of a free +// software library 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. + +#ifndef OLN_MORPHER_THRU_MFUN +# define OLN_MORPHER_THRU_MFUN + +# include <xtd/res.hh> +# include <xtd/abstract/open_nary_fun.hh> +# include <xtd/mexpr.hh> +# include <oln/morpher/internal/image_value_morpher.hh> + + +namespace oln +{ + + namespace morpher + { + // Forward declaration. + template <typename Image, typename Fun> struct thru_mfun; + + } // end of namespace oln::morpher + + + /// Super type. + template <typename Image, typename Fun> + struct set_super_type< morpher::thru_mfun<Image, Fun> > + { + typedef morpher::thru_mfun<Image, Fun> self_t; + typedef morpher::internal::image_value_morpher<Image, self_t> ret; + }; + + + template <typename Image, typename Fun> + struct vtypes< morpher::thru_mfun<Image, Fun> > + { + private: + typedef oln_type_of(Image, rvalue) old_value_type; + public: + typedef mlc::false_ is_computed_type; + typedef typename xtd::res_<Fun, old_value_type>::ret value_type; + typedef value_type& lvalue_type; + }; + + template <typename Image, typename Fun> + struct single_vtype< morpher::thru_mfun<Image, Fun>, typedef_::rvalue_type > + { + typedef morpher::thru_mfun<Image, Fun> self_t; + typedef oln_value(self_t) ret; + }; + + + + namespace morpher + { + + /// 'Image thru Function' morpher. + template <typename Image, typename Fun> + class thru_mfun : public internal::image_value_morpher< Image, + morpher::thru_mfun<Image, Fun> > + { + private: + + typedef thru_mfun<Image, Fun> self_t; + typedef internal::image_value_morpher<Image, self_t> super_t; + + typedef oln_psite(self_t) psite_t; + typedef oln_rvalue(self_t) rvalue_t; + typedef oln_lvalue(self_t) lvalue_t; + + public: + + thru_mfun(const Image& image, const Fun& fun); + + rvalue_t impl_op_read(const psite_t& p) const; + lvalue_t impl_op_readwrite(const psite_t& p); + + protected: + + Fun fun_; + }; + + + namespace ERROR + { + + struct AN_xtd_mutator_ONLY_WORKS_ON_AN_oln_abstract_mutable_image; + + } // end of namespace oln::morpher::ERROR + + +# ifndef OLN_INCLUDE_ONLY + + template <typename Image, typename Fun> + thru_mfun<Image, Fun>::thru_mfun(const Image& image, const Fun& fun) : + super_t(image), + fun_(fun) + { + } + + template <typename Image, typename Fun> + typename thru_mfun<Image, Fun>::rvalue_t + thru_mfun<Image, Fun>::impl_op_read(const typename thru_mfun<Image, Fun>::psite_t& p) const + { + return fun_(this->image_(p)); + } + + template <typename Image, typename Fun> + typename thru_mfun<Image, Fun>::lvalue_t + thru_mfun<Image, Fun>::impl_op_readwrite(const typename thru_mfun<Image, Fun>::psite_t& p) + { + return fun_(this->image_(p)); + } + +# endif + + } // end of namespace oln::morpher + + +} // end of namespace oln + + + +namespace xtd +{ + + // open_nary_fun_<1, Fun>::operator()(A& a) const + // where A is an oln::abstract::mutable_image<I> + + template <typename Fun, typename A> + struct case_ < tag::mutable_fun_operator, mlc::pair_<Fun, A>, 1 > + : where_< mlc_is_a(A, oln::abstract::image) > + { + typedef stc_to_exact(A) I; + typedef oln::morpher::thru_mfun<I, Fun> res; + typedef oln::morpher::thru_mfun<I, Fun> mutable_res; + + static res impl(const Fun& fun, // target + const oln::abstract::image<I>& ima) + { + mlc::assert_< mlc_is_a(A, oln::abstract::mutable_image), + oln::morpher::ERROR::AN_xtd_mutator_ONLY_WORKS_ON_AN_oln_abstract_mutable_image >::check(); + // FIXME: ima is const... so there may be a problem! + res tmp(ima.exact(), fun); + return tmp; + } + + static res impl(const Fun& fun, // target + oln::abstract::image<I>& ima) + { + mlc::assert_< mlc_is_a(A, oln::abstract::mutable_image), + oln::morpher::ERROR::AN_xtd_mutator_ONLY_WORKS_ON_AN_oln_abstract_mutable_image >::check(); + res tmp(ima.exact(), fun); + return tmp; + } + }; + +} // end of namespace xtd + + + +#endif // ! OLN_MORPHER_THRU_MFUN Index: oln/morpher/thru_fun.hh =================================================================== --- oln/morpher/thru_fun.hh (revision 664) +++ oln/morpher/thru_fun.hh (working copy) @@ -69,7 +69,7 @@ struct single_vtype< morpher::thru_fun<Image, Fun>, typedef_::rvalue_type > { typedef morpher::thru_fun<Image, Fun> self_t; - typedef oln_type_of(self_t, value) ret; + typedef oln_value(self_t) ret; }; @@ -87,8 +87,8 @@ typedef thru_fun<Image, Fun> self_t; typedef internal::image_value_morpher<Image, self_t> super_t; - typedef oln_type_of(self_t, psite) psite_t; - typedef oln_type_of(self_t, rvalue) rvalue_t; + typedef oln_psite(self_t) psite_t; + typedef oln_rvalue(self_t) rvalue_t; public: @@ -135,7 +135,7 @@ // where A is an oln::abstract::image<I> template <typename Fun, typename A> - struct case_ < tag::fun_operator_1, mlc::pair_<Fun, A>, 2 > + struct case_ < tag::fun_operator_1, mlc::pair_<Fun, A>, 1 > : where_< mlc_is_a(A, oln::abstract::image) > { typedef stc_to_exact(A) I; Index: oln/value/accessor.hh =================================================================== --- oln/value/accessor.hh (revision 0) +++ oln/value/accessor.hh (revision 0) @@ -0,0 +1,56 @@ +// Copyright (C) 2006 EPITA Research and Development Laboratory +// +// This file is part of the Olena Library. This library is free +// software; you can redistribute it and/or modify it under the terms +// of the GNU General Public License version 2 as published by the +// Free Software Foundation. +// +// This library 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 this library; see the file COPYING. If not, write to +// the Free Software Foundation, 51 Franklin Street, Fifth Floor, +// Boston, MA 02111-1307, USA. +// +// As a special exception, you may use this file as part of a free +// software library 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. + +#ifndef OLN_VALUE_ACCESSOR_HH +# define OLN_VALUE_ACCESSOR_HH + +#include <oln/morpher/thru_fun.hh> +#include <xtd/accessor.hh> + + +xtd_decl_accessor(value); +xtd_decl_accessor(vec); + +xtd_decl_accessor(red); +xtd_decl_accessor(green); +xtd_decl_accessor(blue); + + +namespace oln +{ + + static const xtd::accessor::value_type a_value; + static const xtd::accessor::vec_type a_vec; + + static const xtd::accessor::red_type a_red; + static const xtd::accessor::green_type a_green; + static const xtd::accessor::blue_type a_blue; + +} // end of namespace oln + + +#endif // ! OLN_VALUE_ACCESSOR_HH