/source/library/Interlace.Pinch/Interlace.Pinch/Dom/Structure.cs

#region Using Directives and Copyright Notice



// Copyright (c) 2007-2010, Computer Consultancy Pty Ltd

// All rights reserved.

// 

// Redistribution and use in source and binary forms, with or without

// modification, are permitted provided that the following conditions are met:

//     * Redistributions of source code must retain the above copyright

//       notice, this list of conditions and the following disclaimer.

//     * Redistributions in binary form must reproduce the above copyright

//       notice, this list of conditions and the following disclaimer in the

//       documentation and/or other materials provided with the distribution.

//     * Neither the name of the Computer Consultancy Pty Ltd nor the

//       names of its contributors may be used to endorse or promote products

//       derived from this software without specific prior written permission.

// 

// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 

// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 

// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 

// ARE DISCLAIMED. IN NO EVENT SHALL COMPUTER CONSULTANCY PTY LTD BE LIABLE 

// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 

// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 

// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 

// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 

// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 

// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH

// DAMAGE.



using System;

using System.Collections.Generic;

using System.Text;



using Interlace.Collections;

using Interlace.Pinch.Analysis;



#endregion



namespace Interlace.Pinch.Dom

{

    public class Structure : Declaration

    {

        TrackedBindingList<StructureMember> _members;

        List<StructureMember> _codingOrderMembers;

        List<StructureMemberVersionGroup> _versionGroupedMembers;

        List<StructureMember> _nonRemovedMembers;

        StructureKind _structureKind;



        public Structure()

        {

            _members = new TrackedBindingList<StructureMember>();

            _members.Added += new EventHandler<TrackedBindingListEventArgs<StructureMember>>(_members_Added);

            _members.Removed += new EventHandler<TrackedBindingListEventArgs<StructureMember>>(_members_Removed);



            _members.ListChanged += new System.ComponentModel.ListChangedEventHandler(_members_ListChanged);



            _codingOrderMembers = null;

            _versionGroupedMembers = null;

            _nonRemovedMembers = null;

        }



        void _members_ListChanged(object sender, System.ComponentModel.ListChangedEventArgs e)

        {

            _codingOrderMembers = null;

            _versionGroupedMembers = null;

            _nonRemovedMembers = null;

        }



        void _members_Added(object sender, TrackedBindingListEventArgs<StructureMember> e)

        {

            e.Item.Parent = this;

        }



        void _members_Removed(object sender, TrackedBindingListEventArgs<StructureMember> e)

        {

            e.Item.Parent = null;

        }



        public IList<StructureMember> Members

        {

            get { return _members; }

        }



        public IList<StructureMember> CodingOrderMembers

        {

            get

            {

                if (_codingOrderMembers == null)

                {

                    List<StructureMember> members = new List<StructureMember>(_members);

                    members.Sort(delegate(StructureMember lhs, StructureMember rhs)

                    {

                        return lhs.Number.CompareTo(rhs.Number);

                    });



                    _codingOrderMembers = members;

                }



                return _codingOrderMembers;

            }

        }



        public IList<StructureMemberVersionGroup> VersionGroupedMembers

        {

            get

            {

                if (_versionGroupedMembers == null)

                {

                    _versionGroupedMembers = new List<StructureMemberVersionGroup>();



                    StructureMemberVersionGroup group = null;



                    foreach (StructureMember member in CodingOrderMembers)

                    {

                        int version = member.Versioning.AddedInVersion;



                        if (group == null || group.Version != version)

                        {

                            group = new StructureMemberVersionGroup(this, version);



                            _versionGroupedMembers.Add(group);

                        }



                        group.Members.Add(member);

                    }

                }



                return _versionGroupedMembers;

            }

        }



        public IList<StructureMember> NonRemovedMembers

        {

            get 

            { 

                if (_nonRemovedMembers == null)

                {

                    _nonRemovedMembers = new List<StructureMember>();



                    foreach (StructureMember member in _members)

                    {

                        if (!member.IsRemoved) _nonRemovedMembers.Add(member);

                    }

                }



                return _nonRemovedMembers;

            }

        }



        public override IEnumerable<DeclarationMember> MemberBases

        {

            get 

            {

                foreach (StructureMember member in _members)

                {

                    yield return member;

                }

            }

        }



        public override void SortAndNumberVersionables()

        {

            VersionableUtilities.NumberVersionables(_members);

        }



        public override string KindTag 

        {

            get { return _structureKind == StructureKind.Choice ? "choice" : "structure"; } 

        }



        public StructureKind StructureKind

        { 	 

            get { return _structureKind; }

            set { _structureKind = value; }

        }

    }

}