-/*\r
+/*\r
+* Copyright 2008 ZXing authors\r
+*\r
* Licensed under the Apache License, Version 2.0 (the "License");\r
* you may not use this file except in compliance with the License.\r
* You may obtain a copy of the License at\r
* See the License for the specific language governing permissions and\r
* limitations under the License.\r
*/\r
+using System;\r
+using BarcodeFormat = com.google.zxing.BarcodeFormat;\r
+using DecodeHintType = com.google.zxing.DecodeHintType;\r
+using ReaderException = com.google.zxing.ReaderException;\r
+using Result = com.google.zxing.Result;\r
+using BitArray = com.google.zxing.common.BitArray;\r
namespace com.google.zxing.oned\r
{\r
- /**\r
- * @author dswitkin@google.com (Daniel Switkin)\r
- * @author Sean Owen\r
- */\r
- using System.Text;\r
- using com.google.zxing.common;\r
-\r
- public sealed class MultiFormatUPCEANReader : AbstractOneDReader\r
- { \r
- private System.Collections.ArrayList readers;\r
- public MultiFormatUPCEANReader(System.Collections.Hashtable hints) {\r
- System.Collections.ArrayList possibleFormats = hints == null ? null : (System.Collections.ArrayList) hints[DecodeHintType.POSSIBLE_FORMATS];\r
- readers = new System.Collections.ArrayList();\r
- if (possibleFormats != null) {\r
- if (possibleFormats.Contains(BarcodeFormat.EAN_13)) {\r
- readers.Add(new EAN13Reader());\r
- } else if (possibleFormats.Contains(BarcodeFormat.UPC_A)) {\r
- readers.Add(new UPCAReader());\r
- }\r
- if (possibleFormats.Contains(BarcodeFormat.EAN_8)) {\r
- readers.Add(new EAN8Reader());\r
- }\r
- if (possibleFormats.Contains(BarcodeFormat.UPC_E)) {\r
- readers.Add(new UPCEReader());\r
- }\r
- }\r
- if (readers.Count==0) {\r
- readers.Add(new EAN13Reader());\r
- // UPC-A is covered by EAN-13\r
- readers.Add(new EAN8Reader());\r
- readers.Add(new UPCEReader());\r
- }\r
- }\r
-\r
- public override Result decodeRow(int rowNumber, BitArray row, System.Collections.Hashtable hints) {\r
- // Compute this location once and reuse it on multiple implementations\r
- int[] startGuardPattern = AbstractUPCEANReader.findStartGuardPattern(row);\r
- int size = readers.Count;\r
- for (int i = 0; i < size; i++) {\r
- UPCEANReader reader = (UPCEANReader) readers[i];\r
- Result result;\r
- try {\r
- result = reader.decodeRow(rowNumber, row, startGuardPattern);\r
- } catch (ReaderException re) {\r
- continue;\r
- }\r
- // Special case: a 12-digit code encoded in UPC-A is identical to a "0"\r
- // followed by those 12 digits encoded as EAN-13. Each will recognize such a code,\r
- // UPC-A as a 12-digit string and EAN-13 as a 13-digit string starting with "0".\r
- // Individually these are correct and their readers will both read such a code\r
- // and correctly call it EAN-13, or UPC-A, respectively.\r
- //\r
- // In this case, if we've been looking for both types, we'd like to call it\r
- // a UPC-A code. But for efficiency we only run the EAN-13 decoder to also read\r
- // UPC-A. So we special case it here, and convert an EAN-13 result to a UPC-A\r
- // result if appropriate.\r
- if (result.getBarcodeFormat().Equals(BarcodeFormat.EAN_13) && result.getText()[0] == '0') {\r
- return new Result(result.getText().Substring(1), null, result.getResultPoints(), BarcodeFormat.UPC_A);\r
- }\r
- return result;\r
- }\r
-\r
- throw new ReaderException();\r
- }\r
- \r
- }\r
+ \r
+ /// <summary> <p>A reader that can read all available UPC/EAN formats. If a caller wants to try to\r
+ /// read all such formats, it is most efficient to use this implementation rather than invoke\r
+ /// individual readers.</p>\r
+ /// \r
+ /// </summary>\r
+ /// <author> Sean Owen\r
+ /// </author>\r
+ /// <author>www.Redivivus.in (suraj.supekar@redivivus.in) - Ported from ZXING Java Source \r
+ /// </author>\r
+ public sealed class MultiFormatUPCEANReader:OneDReader\r
+ {\r
+ \r
+ //UPGRADE_NOTE: Final was removed from the declaration of 'readers '. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1003'"\r
+ private System.Collections.ArrayList readers;\r
+ \r
+ public MultiFormatUPCEANReader(System.Collections.Hashtable hints)\r
+ {\r
+ System.Collections.ArrayList possibleFormats = hints == null?null:(System.Collections.ArrayList) hints[DecodeHintType.POSSIBLE_FORMATS];\r
+ readers = System.Collections.ArrayList.Synchronized(new System.Collections.ArrayList(10));\r
+ if (possibleFormats != null)\r
+ {\r
+ if (possibleFormats.Contains(BarcodeFormat.EAN_13))\r
+ {\r
+ readers.Add(new EAN13Reader());\r
+ }\r
+ else if (possibleFormats.Contains(BarcodeFormat.UPC_A))\r
+ {\r
+ readers.Add(new UPCAReader());\r
+ }\r
+ if (possibleFormats.Contains(BarcodeFormat.EAN_8))\r
+ {\r
+ readers.Add(new EAN8Reader());\r
+ }\r
+ if (possibleFormats.Contains(BarcodeFormat.UPC_E))\r
+ {\r
+ readers.Add(new UPCEReader());\r
+ }\r
+ }\r
+ if ((readers.Count == 0))\r
+ {\r
+ readers.Add(new EAN13Reader());\r
+ // UPC-A is covered by EAN-13\r
+ readers.Add(new EAN8Reader());\r
+ readers.Add(new UPCEReader());\r
+ }\r
+ }\r
+ \r
+ public override Result decodeRow(int rowNumber, BitArray row, System.Collections.Hashtable hints)\r
+ {\r
+ // Compute this location once and reuse it on multiple implementations\r
+ int[] startGuardPattern = UPCEANReader.findStartGuardPattern(row);\r
+ int size = readers.Count;\r
+ for (int i = 0; i < size; i++)\r
+ {\r
+ UPCEANReader reader = (UPCEANReader) readers[i];\r
+ Result result;\r
+ try\r
+ {\r
+ result = reader.decodeRow(rowNumber, row, startGuardPattern, hints);\r
+ }\r
+ catch (ReaderException re)\r
+ {\r
+ continue;\r
+ }\r
+ // Special case: a 12-digit code encoded in UPC-A is identical to a "0"\r
+ // followed by those 12 digits encoded as EAN-13. Each will recognize such a code,\r
+ // UPC-A as a 12-digit string and EAN-13 as a 13-digit string starting with "0".\r
+ // Individually these are correct and their readers will both read such a code\r
+ // and correctly call it EAN-13, or UPC-A, respectively.\r
+ //\r
+ // In this case, if we've been looking for both types, we'd like to call it\r
+ // a UPC-A code. But for efficiency we only run the EAN-13 decoder to also read\r
+ // UPC-A. So we special case it here, and convert an EAN-13 result to a UPC-A\r
+ // result if appropriate.\r
+ if (result.BarcodeFormat.Equals(BarcodeFormat.EAN_13) && result.Text[0] == '0')\r
+ {\r
+ return new Result(result.Text.Substring(1), null, result.ResultPoints, BarcodeFormat.UPC_A);\r
+ }\r
+ return result;\r
+ }\r
+ \r
+ throw ReaderException.Instance;\r
+ }\r
+ }\r
}
\ No newline at end of file
projects / zxing.git / blobdiff