29143042407

Committed 11 Jul 2026 06:34AM UTC coverage: 2.912% (-73.0%) from 75.918%

Build # 29143042407

Build Type

push

github

Committed by

web-flow

Commit Message

Merge pull request #1146 from ilCosmico/acds-read-payload-anchor

Read the AcDs payload area offset from the data segment header

Coverage Stats

264 of 12999 branches covered (2.03%)

Branch coverage included in aggregate %.

0 of 30 new or added lines in 1 file covered. (0.0%)

31243 existing lines in 465 files now uncovered.

1337 of 41984 relevant lines covered (3.18%)

5.38 hits per line

Source File
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0.0

/src/ACadSharp/Classes/DxfClassCollection.cs

﻿using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;

namespace ACadSharp.Classes;

/// <summary>
/// Represents a collection of <see cref="DxfClass"/> objects.
/// </summary>
public class DxfClassCollection : ICollection<DxfClass>
{
        /// <inheritdoc/>
        public int Count { get { return this._entries.Count; } }

        /// <inheritdoc/>
        public bool IsReadOnly => false;

        private readonly CadDocument _document;

        private readonly Dictionary<string, DxfClass> _entries = new Dictionary<string, DxfClass>(StringComparer.OrdinalIgnoreCase);

        /// <summary>
        /// Initializes a new instance of the <see cref="DxfClassCollection"/> class.
        /// </summary>
        /// <param name="document">The CAD document associated with this collection.</param>
        public DxfClassCollection(CadDocument document)
        {
                this._document = document;
        }

        /// <summary>
        /// Add a dxf class to the collection if the <see cref="DxfClass.DxfName"/> is not present.
        /// </summary>
        /// <param name="item">The dxf class to add.</param>
        public void Add(DxfClass item)
        {
                this._entries.Add(item.DxfName, item);
        }

        /// <summary>
        /// Add a dxf class to the collection or updates the existing one if the <see cref="DxfClass.DxfName"/> is already in the collection.
        /// </summary>
        /// <param name="item">The dxf class to add or update.</param>
        public void AddOrUpdate(DxfClass item)
        {
                if (this._entries.TryGetValue(item.DxfName, out DxfClass result))
                {
                        result.InstanceCount = this._document.GetInstanceCount(item.DxfName);
                }
                else
                {
                        this.Add(item);
                }
        }

        /// <inheritdoc/>
        public void Clear()
        {
                this._entries.Clear();
        }

        /// <summary>
        /// Determines whether the Collection contains a specific <see cref="DxfClass.DxfName"/>.
        /// </summary>
        /// <param name="dxfname">The name of the dxf class to check.</param>
        /// <returns>true if the Collection contains an element with the specified name; otherwise, false.</returns>
        public bool Contains(string dxfname)
        {
                return this._entries.ContainsKey(dxfname);
        }

        /// <inheritdoc/>
        public bool Contains(DxfClass item)
        {
                return this._entries.Values.Contains(item);
        }

        /// <inheritdoc/>
        public void CopyTo(DxfClass[] array, int arrayIndex)
        {
                this._entries.Values.CopyTo(array, arrayIndex);
        }

        /// <summary>
        /// Gets the dxf class associated with <see cref="DxfClass.ClassNumber"/>.
        /// </summary>
        /// <param name="id"></param>
        /// <returns></returns>
        public DxfClass GetByClassNumber(short id)
        {
                return this._entries.Values.FirstOrDefault(c => c.ClassNumber == id);
        }

        /// <summary>
        /// Gets the dxf class associated with <see cref="DxfClass.DxfName"/>.
        /// </summary>
        /// <param name="dxfname"></param>
        /// <returns></returns>
        public DxfClass GetByName(string dxfname)
        {
                if (this._entries.TryGetValue(dxfname, out DxfClass result))
                {
                        return result;
                }
                else
                {
                        return null;
                }
        }

        /// <inheritdoc/>
        public IEnumerator<DxfClass> GetEnumerator()
        {
                return this._entries.Values.GetEnumerator();
        }

        /// <inheritdoc/>
        IEnumerator IEnumerable.GetEnumerator()
        {
                return this._entries.Values.GetEnumerator();
        }

        /// <inheritdoc/>
        public bool Remove(DxfClass item)
        {
                return this._entries.Remove(item.DxfName);
        }

        /// <summary>
        /// Gets the dxf class associated with <see cref="DxfClass.ClassNumber"/>.
        /// </summary>
        /// <param name="id"></param>
        /// <param name="result"></param>
        /// <returns></returns>
        public bool TryGetByClassNumber(short id, out DxfClass result)
        {
                result = this._entries.Values.FirstOrDefault(c => c.ClassNumber == id);
                return result != null;
        }

        /// <summary>
        /// Gets the dxf class associated with <see cref="DxfClass.DxfName"/>.
        /// </summary>
        /// <param name="dxfname"></param>
        /// <param name="result"></param>
        /// <returns>true if the Collection contains an element with the specified key; otherwise, false.</returns>
        public bool TryGetByName(string dxfname, out DxfClass result)
        {
                return this._entries.TryGetValue(dxfname, out result);
        }

        /// <summary>
        /// Updates the DXF class collection in the document with a predefined set of class definitions and resets class
        /// numbers.
        /// </summary>
        public void UpdateDxfClasses()
        {
                this.resetClassNumbers();

                //AcDbDictionaryWithDefault
                this.AddOrUpdate(new DxfClass
                {
                        CppClassName = DxfSubclassMarker.DictionaryWithDefault,
                        ClassNumber = (short)(500 + this.Count),
                        DwgVersion = (ACadVersion)22,
                        DxfName = DxfFileToken.ObjectDictionaryWithDefault,
                        ItemClassId = 499,
                        MaintenanceVersion = 42,
                        ProxyFlags = ProxyFlags.R13FormatProxy,
                        WasZombie = false,
                        InstanceCount = this._document.GetInstanceCount(DxfFileToken.ObjectDictionaryWithDefault),
                });

                //AcDbPlaceHolder
                this.AddOrUpdate(new DxfClass
                {
                        CppClassName = DxfSubclassMarker.AcDbPlaceHolder,
                        ClassNumber = (short)(500 + this.Count),
                        DwgVersion = (ACadVersion)0,
                        DxfName = DxfFileToken.ObjectPlaceholder,
                        ItemClassId = 499,
                        MaintenanceVersion = 0,
                        ProxyFlags = ProxyFlags.None,
                        WasZombie = false,
                        InstanceCount = this._document.GetInstanceCount(DxfFileToken.ObjectPlaceholder),
                });

                //AcDbLayout
                this.AddOrUpdate(new DxfClass
                {
                        CppClassName = DxfSubclassMarker.Layout,
                        ClassNumber = (short)(500 + this.Count),
                        DwgVersion = (ACadVersion)0,
                        DxfName = DxfFileToken.ObjectLayout,
                        ItemClassId = 499,
                        MaintenanceVersion = 0,
                        ProxyFlags = ProxyFlags.None,
                        WasZombie = false,
                        InstanceCount = this._document.GetInstanceCount(DxfFileToken.ObjectLayout),
                });

                //AcDbDictionaryVar
                this.AddOrUpdate(new DxfClass
                {
                        CppClassName = DxfSubclassMarker.DictionaryVar,
                        ClassNumber = (short)(500 + this.Count),
                        DwgVersion = (ACadVersion)20,
                        DxfName = DxfFileToken.ObjectDictionaryVar,
                        ItemClassId = 499,
                        MaintenanceVersion = 0,
                        ProxyFlags = ProxyFlags.None,
                        WasZombie = false,
                        InstanceCount = this._document.GetInstanceCount(DxfFileToken.ObjectDictionaryVar),
                });

                //AcDbTableStyle
                this.AddOrUpdate(new DxfClass
                {
                        CppClassName = DxfSubclassMarker.TableStyle,
                        ClassNumber = (short)(500 + this.Count),
                        DwgVersion = ACadVersion.AC1018,
                        DxfName = DxfFileToken.ObjectTableStyle,
                        ItemClassId = 499,
                        MaintenanceVersion = 0,
                        ProxyFlags = (ProxyFlags)4095,
                        WasZombie = false,
                        InstanceCount = this._document.GetInstanceCount(DxfFileToken.ObjectTableStyle),
                });

                //AcDbMaterial
                this.AddOrUpdate(new DxfClass
                {
                        CppClassName = DxfSubclassMarker.Material,
                        ClassNumber = (short)(500 + this.Count),
                        DwgVersion = 0,
                        DxfName = DxfFileToken.ObjectMaterial,
                        ItemClassId = 499,
                        MaintenanceVersion = 0,
                        ProxyFlags = ProxyFlags.EraseAllowed | ProxyFlags.CloningAllowed | ProxyFlags.DisablesProxyWarningDialog,
                        WasZombie = false,
                        InstanceCount = this._document.GetInstanceCount(DxfFileToken.ObjectMaterial),
                });

                //AcDbVisualStyle
                this.AddOrUpdate(new DxfClass
                {
                        CppClassName = DxfSubclassMarker.VisualStyle,
                        ClassNumber = (short)(500 + this.Count),
                        DwgVersion = ACadVersion.AC1021,
                        DxfName = DxfFileToken.ObjectVisualStyle,
                        ItemClassId = 499,
                        MaintenanceVersion = 0,
                        ProxyFlags = (ProxyFlags)4095,
                        WasZombie = false,
                        InstanceCount = this._document.GetInstanceCount(DxfFileToken.ObjectVisualStyle),
                });

                //AcDbScale
                this.AddOrUpdate(new DxfClass
                {
                        CppClassName = DxfSubclassMarker.Scale,
                        ClassNumber = (short)(500 + this.Count),
                        DwgVersion = ACadVersion.AC1021,
                        DxfName = DxfFileToken.ObjectScale,
                        ItemClassId = 499,
                        MaintenanceVersion = 1,
                        ProxyFlags = ProxyFlags.EraseAllowed | ProxyFlags.CloningAllowed | ProxyFlags.DisablesProxyWarningDialog,
                        WasZombie = false,
                        InstanceCount = this._document.GetInstanceCount(DxfFileToken.ObjectScale),
                });

                //AcDbMLeaderStyle
                this.AddOrUpdate(new DxfClass
                {
                        CppClassName = DxfSubclassMarker.MLeaderStyle,
                        ClassNumber = (short)(500 + this.Count),
                        DwgVersion = ACadVersion.AC1021,
                        DxfName = DxfFileToken.ObjectMLeaderStyle,
                        ItemClassId = 499,
                        MaintenanceVersion = 25,
                        ProxyFlags = (ProxyFlags)4095,
                        WasZombie = false,
                        InstanceCount = this._document.GetInstanceCount(DxfFileToken.ObjectMLeaderStyle),
                });

                //AcDbCellStyleMap
                this.AddOrUpdate(new DxfClass
                {
                        CppClassName = DxfSubclassMarker.CellStyleMap,
                        ClassNumber = (short)(500 + this.Count),
                        DwgVersion = ACadVersion.AC1021,
                        DxfName = DxfFileToken.ObjectCellStyleMap,
                        ItemClassId = 499,
                        MaintenanceVersion = 25,
                        ProxyFlags = ProxyFlags.CloningAllowed | ProxyFlags.DisablesProxyWarningDialog,
                        WasZombie = false,
                        InstanceCount = this._document.GetInstanceCount(DxfFileToken.ObjectCellStyleMap),
                });

                //ExAcXREFPanelObject
                this.AddOrUpdate(new DxfClass
                {
                        CppClassName = "ExAcXREFPanelObject",
                        ClassNumber = (short)(500 + this.Count),
                        DwgVersion = 0,
                        DxfName = "EXACXREFPANELOBJECT",
                        ItemClassId = 499,
                        MaintenanceVersion = 0,
                        ProxyFlags = ProxyFlags.EraseAllowed | ProxyFlags.DisablesProxyWarningDialog,
                        WasZombie = false,
                        InstanceCount = this._document.GetInstanceCount("EXACXREFPANELOBJECT"),
                });

                //AcDbImpNonPersistentObjectsCollection
                this.AddOrUpdate(new DxfClass
                {
                        CppClassName = "AcDbImpNonPersistentObjectsCollection",
                        ClassNumber = (short)(500 + this.Count),
                        DwgVersion = 0,
                        DxfName = "NPOCOLLECTION",
                        ItemClassId = 499,
                        MaintenanceVersion = 0,
                        ProxyFlags = ProxyFlags.EraseAllowed | ProxyFlags.CloningAllowed | ProxyFlags.DisablesProxyWarningDialog,
                        WasZombie = false,
                        InstanceCount = this._document.GetInstanceCount("NPOCOLLECTION"),
                });

                //AcDbLayerIndex
                this.AddOrUpdate(new DxfClass
                {
                        CppClassName = "AcDbLayerIndex",
                        ClassNumber = (short)(500 + this.Count),
                        DwgVersion = 0,
                        DxfName = "LAYER_INDEX",
                        ItemClassId = 499,
                        MaintenanceVersion = 0,
                        ProxyFlags = ProxyFlags.None,
                        WasZombie = false,
                        InstanceCount = this._document.GetInstanceCount("LAYER_INDEX"),
                });

                //AcDbSpatialIndex
                this.AddOrUpdate(new DxfClass
                {
                        CppClassName = "AcDbSpatialIndex",
                        ClassNumber = (short)(500 + this.Count),
                        DwgVersion = 0,
                        DxfName = "SPATIAL_INDEX",
                        ItemClassId = 499,
                        MaintenanceVersion = 0,
                        ProxyFlags = ProxyFlags.None,
                        WasZombie = false,
                        InstanceCount = this._document.GetInstanceCount("SPATIAL_INDEX"),
                });

                //AcDbIdBuffer
                this.AddOrUpdate(new DxfClass
                {
                        CppClassName = "AcDbIdBuffer",
                        ClassNumber = (short)(500 + this.Count),
                        DwgVersion = ACadVersion.AC1014,
                        DxfName = "IDBUFFER",
                        ItemClassId = 499,
                        MaintenanceVersion = 0,
                        ProxyFlags = ProxyFlags.R13FormatProxy,
                        WasZombie = false,
                        InstanceCount = this._document.GetInstanceCount("IDBUFFER"),
                });

                //AcDbSectionViewStyle
                this.AddOrUpdate(new DxfClass
                {
                        CppClassName = "AcDbSectionViewStyle",
                        ClassNumber = (short)(500 + this.Count),
                        DwgVersion = 0,
                        DxfName = "ACDBSECTIONVIEWSTYLE",
                        ItemClassId = 499,
                        MaintenanceVersion = 0,
                        ProxyFlags = ProxyFlags.EraseAllowed | ProxyFlags.DisablesProxyWarningDialog,
                        WasZombie = false,
                        InstanceCount = this._document.GetInstanceCount("ACDBSECTIONVIEWSTYLE"),
                });

                //AcDbDetailViewStyle
                this.AddOrUpdate(new DxfClass
                {
                        CppClassName = "AcDbDetailViewStyle",
                        ClassNumber = (short)(500 + this.Count),
                        DwgVersion = 0,
                        DxfName = "ACDBDETAILVIEWSTYLE",
                        ItemClassId = 499,
                        MaintenanceVersion = 0,
                        ProxyFlags = ProxyFlags.EraseAllowed | ProxyFlags.DisablesProxyWarningDialog,
                        WasZombie = false,
                        InstanceCount = this._document.GetInstanceCount("ACDBDETAILVIEWSTYLE"),
                });

                //AcDbSubDMesh
                this.AddOrUpdate(new DxfClass
                {
                        CppClassName = DxfSubclassMarker.Mesh,
                        ClassNumber = (short)(500 + this.Count),
                        DwgVersion = 0,
                        DxfName = DxfFileToken.EntityMesh,
                        ItemClassId = 498,
                        MaintenanceVersion = 0,
                        ProxyFlags = ProxyFlags.None,
                        WasZombie = false,
                        InstanceCount = this._document.GetInstanceCount(DxfFileToken.EntityMesh),
                });

                //AcDbSortentsTable
                this.AddOrUpdate(new DxfClass
                {
                        CppClassName = DxfSubclassMarker.SortentsTable,
                        ClassNumber = (short)(500 + this.Count),
                        DwgVersion = ACadVersion.AC1014,
                        DxfName = DxfFileToken.ObjectSortEntsTable,
                        ItemClassId = 499,
                        MaintenanceVersion = 0,
                        ProxyFlags = ProxyFlags.None,
                        WasZombie = false,
                        InstanceCount = this._document.GetInstanceCount(DxfFileToken.ObjectSortEntsTable),
                });

                //AcDbTextObjectContextData
                this.AddOrUpdate(new DxfClass
                {
                        CppClassName = "AcDbTextObjectContextData",
                        ClassNumber = (short)(500 + this.Count),
                        DwgVersion = 0,
                        DxfName = "ACDB_TEXTOBJECTCONTEXTDATA_CLASS",
                        ItemClassId = 499,
                        MaintenanceVersion = 0,
                        ProxyFlags = ProxyFlags.EraseAllowed | ProxyFlags.CloningAllowed | ProxyFlags.DisablesProxyWarningDialog,
                        WasZombie = false,
                        InstanceCount = this._document.GetInstanceCount("ACDB_TEXTOBJECTCONTEXTDATA_CLASS"),
                });

                //AcDbWipeout
                this.AddOrUpdate(new DxfClass
                {
                        ApplicationName = "WipeOut",
                        CppClassName = DxfSubclassMarker.Wipeout,
                        ClassNumber = (short)(500 + this.Count),
                        DwgVersion = ACadVersion.AC1015,
                        DxfName = DxfFileToken.EntityWipeout,
                        ItemClassId = 498,
                        MaintenanceVersion = 0,
                        ProxyFlags = ProxyFlags.EraseAllowed | ProxyFlags.TransformAllowed | ProxyFlags.ColorChangeAllowed | ProxyFlags.LayerChangeAllowed | ProxyFlags.LinetypeChangeAllowed | ProxyFlags.LinetypeScaleChangeAllowed | ProxyFlags.VisibilityChangeAllowed | ProxyFlags.R13FormatProxy,
                        WasZombie = false,
                        InstanceCount = this._document.GetInstanceCount(DxfFileToken.EntityWipeout),
                });

                //AcDbWipeoutVariables
                this.AddOrUpdate(new DxfClass
                {
                        ApplicationName = "WipeOut",
                        CppClassName = "AcDbWipeoutVariables",
                        ClassNumber = (short)(500 + this.Count),
                        DwgVersion = ACadVersion.AC1015,
                        DxfName = "WIPEOUTVARIABLES",
                        ItemClassId = 499,
                        MaintenanceVersion = 0,
                        ProxyFlags = ProxyFlags.R13FormatProxy,
                        WasZombie = false,
                        InstanceCount = this._document.GetInstanceCount("WIPEOUTVARIABLES"),
                });

                //AcDbDimAssoc
                this.AddOrUpdate(new DxfClass
                {
                        ApplicationName = "AcDbDimAssoc",
                        CppClassName = "AcDbDimAssoc",
                        ClassNumber = (short)(500 + this.Count),
                        DwgVersion = 0,
                        DxfName = "DIMASSOC",
                        ItemClassId = 499,
                        MaintenanceVersion = 0,
                        ProxyFlags = ProxyFlags.None,
                        WasZombie = false,
                        InstanceCount = this._document.GetInstanceCount("DIMASSOC"),
                });

                //AcDbTable
                this.AddOrUpdate(new DxfClass
                {
                        CppClassName = DxfSubclassMarker.TableEntity,
                        ClassNumber = (short)(500 + this.Count),
                        DwgVersion = ACadVersion.AC1018,
                        DxfName = DxfFileToken.EntityTable,
                        ItemClassId = 498,
                        MaintenanceVersion = 0,
                        ProxyFlags = ProxyFlags.EraseAllowed | ProxyFlags.DisablesProxyWarningDialog,
                        WasZombie = false,
                        InstanceCount = this._document.GetInstanceCount(DxfFileToken.EntityTable),
                });

                //AcDbTableContent
                this.AddOrUpdate(new DxfClass
                {
                        CppClassName = DxfSubclassMarker.TableContent,
                        ClassNumber = (short)(500 + this.Count),
                        DwgVersion = ACadVersion.AC1018,
                        DxfName = DxfFileToken.ObjectTableContent,
                        ItemClassId = 499,
                        MaintenanceVersion = 21,
                        ProxyFlags = ProxyFlags.CloningAllowed | ProxyFlags.DisablesProxyWarningDialog,
                        WasZombie = false,
                        InstanceCount = this._document.GetInstanceCount(DxfFileToken.ObjectTableContent),
                });

                //AcDbTableGeometry
                this.AddOrUpdate(new DxfClass
                {
                        CppClassName = "AcDbTableGeometry",
                        ClassNumber = (short)(500 + this.Count),
                        DwgVersion = 0,
                        DxfName = "TABLEGEOMETRY",
                        ItemClassId = 499,
                        MaintenanceVersion = 0,
                        ProxyFlags = ProxyFlags.CloningAllowed | ProxyFlags.DisablesProxyWarningDialog,
                        WasZombie = false,
                        InstanceCount = this._document.GetInstanceCount("TABLEGEOMETRY"),
                });

                //AcDbRasterImage
                this.AddOrUpdate(new DxfClass
                {
                        ApplicationName = "ISM",
                        CppClassName = DxfSubclassMarker.RasterImage,
                        ClassNumber = (short)(500 + this.Count),
                        DwgVersion = (ACadVersion)20,
                        DxfName = DxfFileToken.EntityImage,
                        ItemClassId = 498,
                        MaintenanceVersion = 0,
                        ProxyFlags = ProxyFlags.EraseAllowed | ProxyFlags.TransformAllowed | ProxyFlags.ColorChangeAllowed | ProxyFlags.LayerChangeAllowed | ProxyFlags.LinetypeChangeAllowed | ProxyFlags.LinetypeScaleChangeAllowed | ProxyFlags.VisibilityChangeAllowed | ProxyFlags.R13FormatProxy,
                        WasZombie = false,
                        InstanceCount = this._document.GetInstanceCount(DxfFileToken.EntityImage),
                });

                //AcDbRasterImageDef
                this.AddOrUpdate(new DxfClass
                {
                        ApplicationName = "ISM",
                        CppClassName = DxfSubclassMarker.RasterImageDef,
                        ClassNumber = (short)(500 + this.Count),
                        DwgVersion = (ACadVersion)20,
                        DxfName = DxfFileToken.ObjectImageDefinition,
                        ItemClassId = 499,
                        MaintenanceVersion = 0,
                        ProxyFlags = ProxyFlags.None,
                        WasZombie = false,
                        InstanceCount = this._document.GetInstanceCount(DxfFileToken.ObjectImageDefinition),
                });

                ////AcDbRasterImageDefReactor
                this.AddOrUpdate(new DxfClass
                {
                        ApplicationName = "ISM",
                        CppClassName = DxfSubclassMarker.RasterImageDefReactor,
                        ClassNumber = (short)(500 + this.Count),
                        DwgVersion = (ACadVersion)20,
                        DxfName = DxfFileToken.ObjectImageDefinitionReactor,
                        ItemClassId = 499,
                        MaintenanceVersion = 0,
                        ProxyFlags = ProxyFlags.EraseAllowed,
                        WasZombie = false,
                        InstanceCount = this._document.GetInstanceCount(DxfFileToken.ObjectImageDefinitionReactor),
                });

                //AcDbColor
                this.AddOrUpdate(new DxfClass
                {
                        CppClassName = DxfSubclassMarker.DbColor,
                        ClassNumber = (short)(500 + this.Count),
                        DwgVersion = ACadVersion.AC1015,
                        DxfName = DxfFileToken.ObjectDBColor,
                        ItemClassId = 499,
                        MaintenanceVersion = 14,
                        ProxyFlags = ProxyFlags.None,
                        WasZombie = false,
                        InstanceCount = this._document.GetInstanceCount(DxfFileToken.ObjectDBColor),
                });

                //AcDbGeoData
                this.AddOrUpdate(new DxfClass
                {
                        CppClassName = DxfSubclassMarker.GeoData,
                        ClassNumber = (short)(500 + this.Count),
                        DwgVersion = ACadVersion.AC1021,
                        DxfName = DxfFileToken.ObjectGeoData,
                        ItemClassId = 499,
                        MaintenanceVersion = 45,
                        ProxyFlags = (ProxyFlags)4095,
                        WasZombie = false,
                        InstanceCount = this._document.GetInstanceCount(DxfFileToken.ObjectGeoData),
                });

                //AcDbMLeader
                this.AddOrUpdate(new DxfClass
                {
                        CppClassName = DxfSubclassMarker.MultiLeader,
                        ClassNumber = (short)(500 + this.Count),
                        DwgVersion = ACadVersion.MC0_0,
                        DxfName = DxfFileToken.EntityMultiLeader,
                        ItemClassId = 499,
                        MaintenanceVersion = 0,
                        ProxyFlags = ProxyFlags.EraseAllowed | ProxyFlags.DisablesProxyWarningDialog,
                        WasZombie = false,
                        InstanceCount = this._document.GetInstanceCount(DxfFileToken.EntityMultiLeader),
                });

                //AcDbPdfReference
                this.AddOrUpdate(new DxfClass
                {
                        CppClassName = DxfSubclassMarker.PdfReference,
                        ClassNumber = (short)(500 + this.Count),
                        DwgVersion = (ACadVersion)26,
                        DxfName = DxfFileToken.EntityPdfUnderlay,
                        ItemClassId = 498,
                        MaintenanceVersion = 0,
                        ProxyFlags = (ProxyFlags)4095,
                        WasZombie = false,
                        InstanceCount = this._document.GetInstanceCount(DxfFileToken.EntityPdfUnderlay),
                });

                //AcDbPdfDefinition
                this.AddOrUpdate(new DxfClass
                {
                        CppClassName = DxfSubclassMarker.PdfDefinition,
                        ClassNumber = (short)(500 + this.Count),
                        DwgVersion = (ACadVersion)26,
                        DxfName = DxfFileToken.ObjectPdfDefinition,
                        ItemClassId = 499,
                        MaintenanceVersion = 0,
                        ProxyFlags = ProxyFlags.EraseAllowed | ProxyFlags.CloningAllowed | ProxyFlags.DisablesProxyWarningDialog,
                        WasZombie = false,
                        InstanceCount = this._document.GetInstanceCount(DxfFileToken.ObjectPdfDefinition),
                });

                //AcDbRasterVariables
                this.AddOrUpdate(new DxfClass
                {
                        ApplicationName = "ISM",
                        CppClassName = DxfSubclassMarker.RasterVariables,
                        ClassNumber = (short)(500 + this.Count),
                        DwgVersion = (ACadVersion)20,
                        DxfName = DxfFileToken.ObjectRasterVariables,
                        ItemClassId = 499,
                        MaintenanceVersion = 0,
                        ProxyFlags = ProxyFlags.None,
                        WasZombie = false,
                        InstanceCount = this._document.GetInstanceCount(DxfFileToken.ObjectRasterVariables),
                });

                //AcDbSpatialFilter
                this.AddOrUpdate(new DxfClass
                {
                        CppClassName = DxfSubclassMarker.SpatialFilter,
                        ClassNumber = (short)(500 + this.Count),
                        DwgVersion = (ACadVersion)20,
                        DxfName = DxfFileToken.ObjectSpatialFilter,
                        ItemClassId = 499,
                        MaintenanceVersion = 0,
                        ProxyFlags = ProxyFlags.None,
                        WasZombie = false,
                        InstanceCount = this._document.GetInstanceCount(DxfFileToken.ObjectSpatialFilter),
                });

                //AcDbMLeaderObjectContextData
                this.AddOrUpdate(new DxfClass
                {
                        CppClassName = DxfSubclassMarker.MultiLeaderObjectContextData,
                        ClassNumber = (short)(500 + this.Count),
                        DwgVersion = ACadVersion.MC0_0,
                        DxfName = DxfFileToken.ObjectMLeaderContextData,
                        ItemClassId = 499,
                        MaintenanceVersion = 0,
                        ProxyFlags = ProxyFlags.EraseAllowed | ProxyFlags.DisablesProxyWarningDialog,
                        WasZombie = false,
                        InstanceCount = this._document.GetInstanceCount(DxfFileToken.ObjectMLeaderContextData),
                });

                //AcDbPlotSettings
                this.AddOrUpdate(new DxfClass
                {
                        CppClassName = DxfSubclassMarker.PlotSettings,
                        ClassNumber = (short)(500 + this.Count),
                        DwgVersion = ACadVersion.AC1015,
                        DxfName = DxfFileToken.ObjectPlotSettings,
                        ItemClassId = 499,
                        MaintenanceVersion = 42,
                        ProxyFlags = ProxyFlags.None,
                        WasZombie = false,
                        InstanceCount = this._document.GetInstanceCount(DxfFileToken.ObjectPlotSettings),
                });

                //AcDbField
                this.AddOrUpdate(new DxfClass
                {
                        CppClassName = DxfSubclassMarker.Field,
                        ClassNumber = (short)(500 + this.Count),
                        DwgVersion = ACadVersion.AC1018,
                        DxfName = DxfFileToken.ObjectField,
                        ItemClassId = 499,
                        MaintenanceVersion = 0,
                        ProxyFlags = ProxyFlags.CloningAllowed | ProxyFlags.DisablesProxyWarningDialog,
                        WasZombie = false,
                        InstanceCount = this._document.GetInstanceCount(DxfFileToken.ObjectField),
                });

                //AcDbFieldList
                this.AddOrUpdate(new DxfClass
                {
                        CppClassName = DxfSubclassMarker.FieldList,
                        ClassNumber = (short)(500 + this.Count),
                        DwgVersion = ACadVersion.AC1018,
                        DxfName = DxfFileToken.ObjectFieldList,
                        ItemClassId = 499,
                        MaintenanceVersion = 0,
                        ProxyFlags = ProxyFlags.CloningAllowed | ProxyFlags.DisablesProxyWarningDialog,
                        WasZombie = false,
                        InstanceCount = this._document.GetInstanceCount(DxfFileToken.ObjectFieldList),
                });

                //AcDbMTextAttributeObjectContextData
                this.AddOrUpdate(new DxfClass
                {
                        CppClassName = DxfSubclassMarker.MTextAttributeObjectContextData,
                        ClassNumber = (short)(500 + this.Count),
                        DwgVersion = ACadVersion.AC1021,
                        DxfName = DxfFileToken.MTextAttributeObjectContextData,
                        ItemClassId = 499,
                        MaintenanceVersion = 0,
                        ProxyFlags = ProxyFlags.EraseAllowed | ProxyFlags.CloningAllowed | ProxyFlags.DisablesProxyWarningDialog,
                        WasZombie = false,
                        InstanceCount = this._document.GetInstanceCount(DxfFileToken.MTextAttributeObjectContextData),
                });

                //AcDbBlkRefObjectContextData
                this.AddOrUpdate(new DxfClass
                {
                        CppClassName = DxfSubclassMarker.BlkRefObjectContextData,
                        ClassNumber = (short)(500 + this.Count),
                        DwgVersion = ACadVersion.AC1021,
                        DxfName = DxfFileToken.BlkRefObjectContextData,
                        ItemClassId = 499,
                        MaintenanceVersion = 0,
                        ProxyFlags = ProxyFlags.EraseAllowed | ProxyFlags.CloningAllowed | ProxyFlags.DisablesProxyWarningDialog,
                        WasZombie = false,
                        InstanceCount = this._document.GetInstanceCount(DxfFileToken.BlkRefObjectContextData),
                });
        }

        private void resetClassNumbers()
        {
                var arr = this._entries.Values.ToArray();
                for (int i = 0; i < arr.Length; i++)
                {
                        arr[i].ClassNumber = (short)(500 + i);
                }
        }
}

DomCR / ACadSharp / 29143042407

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