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/* vim: set sw=4 sts=4 et foldmethod=syntax : */

/*
 * Copyright (c) 2006 Ciaran McCreesh <ciaranm@ciaranm.org>
 *
 * This file is part of the Paludis package manager. Paludis 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.
 *
 * Paludis 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 program; if not, write to the Free Software Foundation, Inc., 59 Temple
 * Place, Suite 330, Boston, MA  02111-1307  USA
 */

#ifndef PALUDIS_GUARD_PALUDIS_DEP_ATOM_PRETTY_PRINTER_HH
#define PALUDIS_GUARD_PALUDIS_DEP_ATOM_PRETTY_PRINTER_HH 1

#include <iosfwd>
#include <paludis/dep_atom.hh>

/** \file
 * Declarations for the DepAtomPrettyPrinter class.
 *
 * \ingroup grpdepatomprettyprinter
 */

namespace paludis
{
    /**
     * Pretty print dependency atoms.
     *
     * \ingroup grpdepatomprettyprinter
     */
    class DepAtomPrettyPrinter :
        public DepAtomVisitorTypes::ConstVisitor
    {
        friend std::ostream & operator<< (std::ostream &, const DepAtomPrettyPrinter &);

        private:
            std::stringstream _s;
            unsigned _indent;

        public:
            /**
             * Constructor.
             */
            DepAtomPrettyPrinter(unsigned initial_indent) :
                _indent(initial_indent)
            {
            }

            /// \name Visit functions
            ///{
            void visit(const AllDepAtom * const);

            void visit(const AnyDepAtom * const);

            void visit(const UseDepAtom * const);

            void visit(const PackageDepAtom * const);

            void visit(const PlainTextDepAtom * const);

            void visit(const BlockDepAtom * const);
            ///}
    };

    /**
     * Output a DepAtomPrettyPrinter to an ostream.
     *
     * \ingroup grpdepatomprettyprinter
     */
    std::ostream & operator<< (std::ostream & s, const DepAtomPrettyPrinter & p);
}

#endif