netDxf/DxfDocument.cs

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#region netDxf, Copyright(C) 2014 Daniel Carvajal, Licensed under LGPL.

//                        netDxf library
// Copyright (C) 2014 Daniel Carvajal (haplokuon@gmail.com)
// 
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
// 
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
// FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
// COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
// IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
// CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 

#endregion

using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.IO;
using netDxf.Blocks;
using netDxf.Collections;
using netDxf.Entities;
using netDxf.Header;
using netDxf.Objects;
using netDxf.Tables;
using Attribute = netDxf.Entities.Attribute;

namespace netDxf
{
    /// <summary>
    /// Represents a document to read and write dxf files.
    /// </summary>
    public class DxfDocument :
        DxfObject
    {
        #region private fields

        private string name;
        //dxf objects added to the document (key: handle, value: dxf object).
        internal Dictionary<string, DxfObject> AddedObjects;
        // keeps track of the number of handles generated
        internal long NumHandles;
        // keeps track of the dimension blocks generated
        internal int DimensionBlocksGenerated;
        // keeps track of the group names generated (this groups have the isUnnamed bool set to true)
        internal int GroupNamesGenerated;

        #region header

        private List<string> comments;
        private readonly HeaderVariables drawingVariables;

        #endregion