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using Autodesk.AutoCAD.ApplicationServices;
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using Autodesk.AutoCAD.DatabaseServices;
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using Autodesk.AutoCAD.Geometry;
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using PRecAnnot.Abstractions;
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namespace PRecAnnot.Plant3D2026;
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internal sealed class LineNumberAnnotationWriter
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{
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private const string ApplicationName = "PXP-LN";
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private const string MarkerBlockName = "LN_MARKER";
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private const string MarkerAttributeTag = "NUMBER";
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public LineNumberApplyResult Apply(Document document, IReadOnlyList<LineNumberApplyPreflight> plan, AnnotateLineNumbersAssets assets)
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{
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ArgumentNullException.ThrowIfNull(document);
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ArgumentNullException.ThrowIfNull(plan);
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ArgumentNullException.ThrowIfNull(assets);
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if (plan.Select(item => item.StableId).Distinct(StringComparer.Ordinal).Count() != plan.Count)
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throw new InvalidOperationException("LINE_NUMBER_APPLY_DUPLICATE_STABLE_ID");
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var created = 0;
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var updated = 0;
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var unchanged = 0;
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var database = document.Database;
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using var documentLock = document.LockDocument();
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using var transaction = database.TransactionManager.StartTransaction();
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var blocks = (BlockTable)transaction.GetObject(database.BlockTableId, OpenMode.ForRead);
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ValidateAssets(transaction, database, assets.Marker);
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EnsureRegApp(transaction, database);
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var markerDefinition = EnsureMarkerDefinition(transaction, database, blocks, assets.Marker);
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var paper = (BlockTableRecord)transaction.GetObject(blocks[BlockTableRecord.PaperSpace], OpenMode.ForWrite);
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foreach (var item in plan.OrderBy(value => value.MarkerNumber))
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{
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var existing = FindOwnedMarker(transaction, paper, item.StableId);
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if (existing is null)
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{
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CreateMarker(transaction, paper, markerDefinition, item, assets.Marker);
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created++;
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}
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else if (UpdateMarker(transaction, existing, item, assets.Marker.Layer)) updated++;
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else unchanged++;
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}
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transaction.Commit();
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return new(created, updated, unchanged);
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}
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private static void ValidateAssets(Transaction transaction, Database database, LineNumberMarkerAsset marker)
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{
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var layers = (LayerTable)transaction.GetObject(database.LayerTableId, OpenMode.ForRead);
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var styles = (TextStyleTable)transaction.GetObject(database.TextStyleTableId, OpenMode.ForRead);
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foreach (var layer in marker.Texts.Select(value => value.Layer).Append(marker.Layer).Concat(marker.Lines.Select(value => value.Layer)).Where(value => !string.IsNullOrWhiteSpace(value)).Distinct(StringComparer.OrdinalIgnoreCase))
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if (!layers.Has(layer)) throw new InvalidOperationException($"LINE_NUMBER_LAYER_MISSING:{layer}");
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foreach (var style in marker.Texts.Select(value => value.TextStyle).Where(value => !string.IsNullOrWhiteSpace(value)).Distinct(StringComparer.OrdinalIgnoreCase))
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if (!styles.Has(style)) throw new InvalidOperationException($"LINE_NUMBER_TEXT_STYLE_MISSING:{style}");
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if (marker.Texts.Count == 0) throw new InvalidOperationException("LINE_NUMBER_MARKER_TEXT_ASSET_MISSING");
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}
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private static ObjectId EnsureMarkerDefinition(Transaction transaction, Database database, BlockTable blocks, LineNumberMarkerAsset marker)
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{
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if (blocks.Has(MarkerBlockName)) return blocks[MarkerBlockName];
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blocks.UpgradeOpen();
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using var definition = new BlockTableRecord { Name = MarkerBlockName, Origin = Point3d.Origin };
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var definitionId = blocks.Add(definition);
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transaction.AddNewlyCreatedDBObject(definition, true);
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var layers = (LayerTable)transaction.GetObject(database.LayerTableId, OpenMode.ForRead);
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var styles = (TextStyleTable)transaction.GetObject(database.TextStyleTableId, OpenMode.ForRead);
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foreach (var text in marker.Texts)
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{
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using var attribute = new AttributeDefinition(
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new Point3d(text.Position.X, text.Position.Y, 0), text.TextValue, MarkerAttributeTag, "Номер маркера:", styles[text.TextStyle])
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{
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Height = text.Size,
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IsMTextAttributeDefinition = true,
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LayerId = layers[text.Layer]
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};
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definition.AppendEntity(attribute);
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transaction.AddNewlyCreatedDBObject(attribute, true);
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}
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foreach (var source in marker.Lines)
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{
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using var line = new Line(new Point3d(source.Start.X, source.Start.Y, 0), new Point3d(source.End.X, source.End.Y, 0)) { LayerId = layers[source.Layer] };
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definition.AppendEntity(line);
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transaction.AddNewlyCreatedDBObject(line, true);
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}
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return definitionId;
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}
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private static void CreateMarker(Transaction transaction, BlockTableRecord paper, ObjectId definitionId, LineNumberApplyPreflight item, LineNumberMarkerAsset marker)
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{
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using var reference = new BlockReference(new Point3d(item.Position.X, item.Position.Y, item.Position.Z), definitionId)
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{
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Rotation = item.Rotation,
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Layer = marker.Layer
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};
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paper.AppendEntity(reference);
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transaction.AddNewlyCreatedDBObject(reference, true);
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reference.XData = Ownership(item);
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var definition = (BlockTableRecord)transaction.GetObject(definitionId, OpenMode.ForRead);
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foreach (ObjectId id in definition)
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{
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if (transaction.GetObject(id, OpenMode.ForRead) is not AttributeDefinition source || source.Constant) continue;
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using var attribute = new AttributeReference();
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attribute.SetAttributeFromBlock(source, reference.BlockTransform);
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attribute.TextString = item.MarkerNumber.ToString(System.Globalization.CultureInfo.InvariantCulture);
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attribute.XData = new ResultBuffer(
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new TypedValue((int)DxfCode.ExtendedDataRegAppName, ApplicationName),
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new TypedValue((int)DxfCode.ExtendedDataAsciiString, "MARKER"),
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new TypedValue((int)DxfCode.ExtendedDataInteger32, item.MarkerNumber));
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reference.AttributeCollection.AppendAttribute(attribute);
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transaction.AddNewlyCreatedDBObject(attribute, true);
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}
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}
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private static BlockReference? FindOwnedMarker(Transaction transaction, BlockTableRecord paper, string stableId)
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{
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foreach (ObjectId id in paper)
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{
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if (transaction.GetObject(id, OpenMode.ForRead) is not BlockReference reference) continue;
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using var data = reference.GetXDataForApplication(ApplicationName);
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var values = data?.AsArray();
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if (values?.Any(value => value.TypeCode == (int)DxfCode.ExtendedDataAsciiString && string.Equals(value.Value as string, stableId, StringComparison.Ordinal)) == true)
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return reference;
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}
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return null;
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}
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private static bool UpdateMarker(Transaction transaction, BlockReference marker, LineNumberApplyPreflight item, string layer)
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{
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var position = new Point3d(item.Position.X, item.Position.Y, item.Position.Z);
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using var existingOwnership = marker.GetXDataForApplication(ApplicationName);
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var ownership = existingOwnership?.AsArray() ?? [];
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var changed = marker.Position != position || marker.Rotation != item.Rotation ||
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!string.Equals(marker.Layer, layer, StringComparison.OrdinalIgnoreCase) ||
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!ownership.Any(value => value.TypeCode == (int)DxfCode.ExtendedDataAsciiString && string.Equals(value.Value as string, item.Text, StringComparison.Ordinal));
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marker.UpgradeOpen();
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marker.Position = position;
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marker.Rotation = item.Rotation;
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marker.Layer = layer;
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marker.XData = Ownership(item);
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foreach (ObjectId id in marker.AttributeCollection)
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{
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var attribute = (AttributeReference)transaction.GetObject(id, OpenMode.ForWrite);
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if (!string.Equals(attribute.Tag, MarkerAttributeTag, StringComparison.OrdinalIgnoreCase)) continue;
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var value = item.MarkerNumber.ToString(System.Globalization.CultureInfo.InvariantCulture);
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changed |= !string.Equals(attribute.TextString, value, StringComparison.Ordinal);
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attribute.TextString = value;
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}
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return changed;
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}
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private static ResultBuffer Ownership(LineNumberApplyPreflight item) => new(
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new TypedValue((int)DxfCode.ExtendedDataRegAppName, ApplicationName),
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new TypedValue((int)DxfCode.ExtendedDataAsciiString, item.StableId),
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new TypedValue((int)DxfCode.ExtendedDataAsciiString, "MARKER"),
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new TypedValue((int)DxfCode.ExtendedDataInteger32, item.MarkerNumber),
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new TypedValue((int)DxfCode.ExtendedDataAsciiString, item.Text));
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private static void EnsureRegApp(Transaction transaction, Database database)
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{
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var table = (RegAppTable)transaction.GetObject(database.RegAppTableId, OpenMode.ForRead);
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if (table.Has(ApplicationName)) return;
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table.UpgradeOpen();
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using var record = new RegAppTableRecord { Name = ApplicationName };
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table.Add(record);
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transaction.AddNewlyCreatedDBObject(record, true);
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}
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}
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codex