[Olena-patches] 1776: Fix mln::neighb::image<P> initializations.

https://svn.lrde.epita.fr/svn/oln/trunk/milena Index: ChangeLog from Roland Levillain &lt;roland(a)lrde.epita.fr&gt; Fix mln::neighb::image<P> initializations. * mln/neighb/image.hh (mln::neighb::image<P>::image): New ctor. (mln::neighb::image<P>::ima, mln::neighb::image<P>::nbh): New accessors. (init_(tag::image_t, neighb::image<I, N>&, const neighb::image<J, N>&)): New. (mln::neighb::image<P>::init_): New. Use this method... (mln::neighb::image<I, N>::image(Image<I>&, const Neighborhood<N>&)): ...here. (mln::neighb::image<I, N>::has_data): Ensure the delegatee is not null. image.hh | 76 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++----- 1 file changed, 71 insertions(+), 5 deletions(-) Index: mln/neighb/image.hh --- mln/neighb/image.hh (revision 1775) +++ mln/neighb/image.hh (working copy) @@ -34,6 +34,7 @@ # include <mln/core/internal/image_identity.hh> # include <mln/core/concept/neighborhood.hh> +// FIXME: Handle the constness of the underlying image. namespace mln { @@ -106,21 +107,55 @@ /// Skeleton. typedef image< tag::image_<I>, tag::neighb_<N> > skeleton; - /// Constructor. + /// Constructors. + /// \{ + image(); image(Image<I>& ima, const Neighborhood<N>& nbh); + /// \} /// Test if this image has been initialized. bool has_data() const; + /// Accessors. + /// \{ + /// Return the underlying image, read-only. + const I& ima() const; + /// Return the underlying image, read-write. + I& ima(); + // FIXME: Rename to nbh(). /// Return the neighborhood associated to this image. const neighb& neighborhood() const; + /// \} + + /// Initialize an empty image. + void init_(Image<I>& ima, const Neighborhood<N>& nbh); }; } // end of namespace mln::neighb + // Fwd decl. + template <typename I, typename J, typename N> + void init_(tag::image_t, + neighb::image<I, N>& target, const neighb::image<J, N>& model); + + + # ifndef MLN_INCLUDE_ONLY + /*-----------------. + | Initialization. | + `-----------------*/ + + template <typename I, typename J, typename N> + void init_(tag::image_t, + neighb::image<I, N>& target, const neighb::image<J, N>& model) + { + I ima; + initialize(ima, model.ima()); + target.init_(ima, model.neighborhood()); + } + /*------------. | operator+. | `------------*/ @@ -133,9 +168,9 @@ return tmp; } - /*--------------------------------------. - | internal::data_< cast_image_<T,I> >. | - `--------------------------------------*/ + /*-----------------------------------------. + | internal::data_< neighb::image_<T,I> >. | + `-----------------------------------------*/ namespace internal { @@ -157,8 +192,23 @@ template <typename I, typename N> inline + image<I, N>::image() + { + } + + template <typename I, typename N> + inline image<I, N>::image(Image<I>& ima, const Neighborhood<N>& nbh) { + init_(ima, nbh); + } + + template <typename I, typename N> + inline + void + image<I, N>::init_(Image<I>& ima, const Neighborhood<N>& nbh) + { + mln_precondition(! this->has_data()); this->data_ = new mln::internal::data_< mln::neighb::image<I, N> >(exact(ima), exact(nbh)); @@ -169,7 +219,23 @@ bool image<I, N>::has_data() const { - return this->delegatee_()->has_data(); + return this->delegatee_() && this->delegatee_()->has_data(); + } + + template <typename I, typename N> + inline + I& + image<I, N>::ima() + { + return this->data_->ima_; + } + + template <typename I, typename N> + inline + const I& + image<I, N>::ima() const + { + return this->data_->ima_; } template <typename I, typename N>