/// <summary> /// Generates an escher record including the any children contained under that record. /// An exception is thrown if the record could not be generated. /// </summary> /// <param name="data">The byte array containing the records</param> /// <param name="offset">The starting offset into the byte array</param> /// <returns>The generated escher record</returns> public virtual EscherRecord CreateRecord(byte[] data, int offset) { EscherRecord.EscherRecordHeader header = EscherRecord.EscherRecordHeader.ReadHeader(data, offset); // Options of 0x000F means container record // However, EscherTextboxRecord are containers of records for the // host application, not of other Escher records, so treat them // differently if ((header.Options & (short)0x000F) == (short)0x000F && header.RecordId != EscherTextboxRecord.RECORD_ID) { EscherContainerRecord r = new EscherContainerRecord(); r.RecordId = header.RecordId; r.Options = header.Options; return(r); } if (header.RecordId >= EscherBlipRecord.RECORD_ID_START && header.RecordId <= EscherBlipRecord.RECORD_ID_END) { EscherBlipRecord r; if (header.RecordId == EscherBitmapBlip.RECORD_ID_DIB || header.RecordId == EscherBitmapBlip.RECORD_ID_JPEG || header.RecordId == EscherBitmapBlip.RECORD_ID_PNG) { r = new EscherBitmapBlip(); } else if (header.RecordId == EscherMetafileBlip.RECORD_ID_EMF || header.RecordId == EscherMetafileBlip.RECORD_ID_WMF || header.RecordId == EscherMetafileBlip.RECORD_ID_PICT) { r = new EscherMetafileBlip(); } else { r = new EscherBlipRecord(); } r.RecordId = header.RecordId; r.Options = header.Options; return(r); } //ConstructorInfo recordConstructor = (ConstructorInfo) recordsMap[header.RecordId]; ConstructorInfo recordConstructor = null; if (recordsMap.ContainsKey(header.RecordId)) { recordConstructor = recordsMap[header.RecordId]; } EscherRecord escherRecord = null; if (recordConstructor == null) { return(new UnknownEscherRecord()); } try { escherRecord = (EscherRecord)recordConstructor.Invoke(new object[] { }); //escherRecord = (EscherRecord)Activator.CreateInstance(recordConstructor); } catch (Exception) { return(new UnknownEscherRecord()); } escherRecord.RecordId = header.RecordId; escherRecord.Options = header.Options; return(escherRecord); }
/// <summary> /// Generates an escher record including the any children contained under that record. /// An exception is thrown if the record could not be generated. /// </summary> /// <param name="data">The byte array containing the records</param> /// <param name="offset">The starting offset into the byte array</param> /// <returns>The generated escher record</returns> public virtual EscherRecord CreateRecord(byte[] data, int offset) { EscherRecord.EscherRecordHeader header = EscherRecord.EscherRecordHeader.ReadHeader(data, offset); // Options of 0x000F means container record // However, EscherTextboxRecord are containers of records for the // host application, not of other Escher records, so treat them // differently if ((header.Options & (short)0x000F) == (short)0x000F && header.RecordId != EscherTextboxRecord.RECORD_ID) { EscherContainerRecord r = new EscherContainerRecord(); r.RecordId = header.RecordId; r.Options = header.Options; return r; } if (header.RecordId >= EscherBlipRecord.RECORD_ID_START && header.RecordId <= EscherBlipRecord.RECORD_ID_END) { EscherBlipRecord r; if (header.RecordId == EscherBitmapBlip.RECORD_ID_DIB || header.RecordId == EscherBitmapBlip.RECORD_ID_JPEG || header.RecordId == EscherBitmapBlip.RECORD_ID_PNG) { r = new EscherBitmapBlip(); } else if (header.RecordId == EscherMetafileBlip.RECORD_ID_EMF || header.RecordId == EscherMetafileBlip.RECORD_ID_WMF || header.RecordId == EscherMetafileBlip.RECORD_ID_PICT) { r = new EscherMetafileBlip(); } else { r = new EscherBlipRecord(); } r.RecordId = header.RecordId; r.Options = header.Options; return r; } //ConstructorInfo recordConstructor = (ConstructorInfo) recordsMap[header.RecordId]; ConstructorInfo recordConstructor = null; if (recordsMap.ContainsKey(header.RecordId)) recordConstructor = recordsMap[header.RecordId]; EscherRecord escherRecord = null; if (recordConstructor == null) { return new UnknownEscherRecord(); } try { escherRecord = (EscherRecord)recordConstructor.Invoke(new object[] { }); //escherRecord = (EscherRecord)Activator.CreateInstance(recordConstructor); } catch (Exception) { return new UnknownEscherRecord(); } escherRecord.RecordId = header.RecordId; escherRecord.Options = header.Options; return escherRecord; }