private void readTable()
{
Debug.Assert(this._reader.LastValueAsString == DxfFileToken.TableEntry);
//Read the table name
this._reader.ReadNext();
int nentries = 0;
this.readCommonObjectData(out string name, out ulong handle, out ulong?ownerHandle, out ulong?xdictHandle, out List <ulong> reactors);
Debug.Assert(this._reader.LastValueAsString == DxfSubclassMarker.Table);
this._reader.ReadNext();
while (this._reader.LastDxfCode != DxfCode.Start)
{
switch (this._reader.LastCode)
{
//Maximum number of entries in table
case 70:
nentries = this._reader.LastValueAsInt;
break;
case 100 when this._reader.LastValueAsString == DxfSubclassMarker.DimensionStyleTable:
while (this._reader.LastDxfCode != DxfCode.Start)
{
//Dimstyle has the code 71 for the count of entries
//Also has 340 codes for each entry with the handles
this._reader.ReadNext();
}
break;
default:
this._notification?.Invoke(null, new NotificationEventArgs($"Unhandeled dxf code {this._reader.LastCode} at line {this._reader.Line}."));
break;
}
if (this._reader.LastDxfCode == DxfCode.Start)
{
break;
}
this._reader.ReadNext();
}
CadTemplate template = null;
switch (name)
{
case DxfFileToken.TableAppId:
template = new DwgTableTemplate <AppId>(new AppIdsTable());
this.readEntries((DwgTableTemplate <AppId>)template);
template.CadObject.Handle = handle;
this._builder.DocumentToBuild.RegisterCollection((AppIdsTable)template.CadObject);
break;
case DxfFileToken.TableBlockRecord:
template = new DwgBlockCtrlObjectTemplate(new BlockRecordsTable());
this.readEntries((DwgBlockCtrlObjectTemplate)template);
template.CadObject.Handle = handle;
this._builder.DocumentToBuild.RegisterCollection((BlockRecordsTable)template.CadObject);
break;
case DxfFileToken.TableVport:
template = new DwgTableTemplate <VPort>(new VPortsTable());
this.readEntries((DwgTableTemplate <VPort>)template);
template.CadObject.Handle = handle;
this._builder.DocumentToBuild.RegisterCollection((VPortsTable)template.CadObject);
break;
case DxfFileToken.TableLinetype:
template = new DwgTableTemplate <LineType>(new LineTypesTable());
this.readEntries((DwgTableTemplate <LineType>)template);
template.CadObject.Handle = handle;
this._builder.DocumentToBuild.RegisterCollection((LineTypesTable)template.CadObject);
break;
case DxfFileToken.TableLayer:
template = new DwgTableTemplate <Layer>(new LayersTable());
this.readEntries((DwgTableTemplate <Layer>)template);
template.CadObject.Handle = handle;
this._builder.DocumentToBuild.RegisterCollection((LayersTable)template.CadObject);
break;
case DxfFileToken.TableStyle:
template = new DwgTableTemplate <TextStyle>(new TextStylesTable());
this.readEntries((DwgTableTemplate <TextStyle>)template);
template.CadObject.Handle = handle;
this._builder.DocumentToBuild.RegisterCollection((TextStylesTable)template.CadObject);
break;
case DxfFileToken.TableView:
template = new DwgTableTemplate <View>(new ViewsTable());
this.readEntries((DwgTableTemplate <View>)template);
template.CadObject.Handle = handle;
this._builder.DocumentToBuild.RegisterCollection((ViewsTable)template.CadObject);
break;
case DxfFileToken.TableUcs:
template = new DwgTableTemplate <UCS>(new UCSTable());
this.readEntries((DwgTableTemplate <UCS>)template);
template.CadObject.Handle = handle;
this._builder.DocumentToBuild.RegisterCollection((UCSTable)template.CadObject);
break;
case DxfFileToken.TableDimstyle:
template = new DwgTableTemplate <DimensionStyle>(new DimensionStylesTable());
this.readEntries((DwgTableTemplate <DimensionStyle>)template);
template.CadObject.Handle = handle;
this._builder.DocumentToBuild.RegisterCollection((DimensionStylesTable)template.CadObject);
break;
default:
throw new DxfException($"Unknown table name {name}");
}
Debug.Assert(ownerHandle == null || ownerHandle.Value == 0);
template.OwnerHandle = ownerHandle;
template.XDictHandle = xdictHandle;
template.ReactorsHandles = reactors;
//Add the object and the template to the builder
this._builder.AddTableTemplate((ICadTableTemplate)template);
}
private void readEntries <T>(DwgTableTemplate <T> tableTemplate)
where T : TableEntry
{
//Read all the entries until the end of the table
while (this._reader.LastValueAsString != DxfFileToken.EndTable)
{
this.readCommonObjectData(out string name, out ulong handle, out ulong?ownerHandle, out ulong?xdictHandle, out List <ulong> reactors);
Debug.Assert(this._reader.LastValueAsString == DxfSubclassMarker.TableRecord);
Debug.Assert(this._reader.LastValueAsString == DxfSubclassMarker.TableRecord);
this._reader.ReadNext();
CadTemplate template = null;
//Get the entry
switch (name)
{
case DxfFileToken.TableAppId:
AppId appid = new AppId();
template = new CadTableEntryTemplate <AppId>(appid);
this.readMapped <AppId>(appid, template);
break;
case DxfFileToken.TableBlockRecord:
BlockRecord record = new BlockRecord();
template = new CadBlockRecordTemplate(record);
this.readMapped <BlockRecord>(record, template);
break;
case DxfFileToken.TableDimstyle:
DimensionStyle dimStyle = new DimensionStyle();
template = new DwgDimensionStyleTemplate(dimStyle);
this.readMapped <DimensionStyle>(dimStyle, template);
break;
case DxfFileToken.TableLayer:
Layer layer = new Layer();
template = new CadLayerTemplate(layer);
this.readMapped <Layer>(layer, template);
break;
case DxfFileToken.TableLinetype:
LineType ltype = new LineType();
template = new CadLineTypeTemplate(ltype);
this.readMapped <LineType>(ltype, template);
break;
case DxfFileToken.TableStyle:
TextStyle style = new TextStyle();
template = new CadTableEntryTemplate <TextStyle>(style);
this.readMapped <TextStyle>(style, template);
break;
case DxfFileToken.TableUcs:
UCS ucs = new UCS();
template = new CadUcsTemplate(ucs);
this.readMapped <UCS>(ucs, template);
break;
case DxfFileToken.TableView:
View view = new View();
template = new CadViewTemplate(view);
this.readMapped <View>(view, template);
break;
case DxfFileToken.TableVport:
VPort vport = new VPort();
template = new CadVPortTemplate(vport);
this.readMapped <VPort>(vport, template);
break;
default:
Debug.Fail($"Unhandeled table {name}.");
break;
}
//Setup the common fields
template.CadObject.Handle = handle;
template.OwnerHandle = ownerHandle;
template.XDictHandle = xdictHandle;
template.ReactorsHandles = reactors;
tableTemplate.EntryHandles.Add(template.CadObject.Handle);
//Add the object and the template to the builder
this._builder.AddTemplate(template);
}
}
