2 * Copyright 2008 ZXing authors
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4 * Licensed under the Apache License, Version 2.0 (the "License");
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5 * you may not use this file except in compliance with the License.
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6 * You may obtain a copy of the License at
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8 * http://www.apache.org/licenses/LICENSE-2.0
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10 * Unless required by applicable law or agreed to in writing, software
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11 * distributed under the License is distributed on an "AS IS" BASIS,
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12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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13 * See the License for the specific language governing permissions and
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14 * limitations under the License.
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17 using BarcodeFormat = com.google.zxing.BarcodeFormat;
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18 using DecodeHintType = com.google.zxing.DecodeHintType;
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19 using ReaderException = com.google.zxing.ReaderException;
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20 using Result = com.google.zxing.Result;
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21 using BitArray = com.google.zxing.common.BitArray;
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22 namespace com.google.zxing.oned
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25 /// <author> dswitkin@google.com (Daniel Switkin)
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27 /// <author> Sean Owen
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29 /// <author>www.Redivivus.in (suraj.supekar@redivivus.in) - Ported from ZXING Java Source
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31 public sealed class MultiFormatOneDReader:OneDReader
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34 //UPGRADE_NOTE: Final was removed from the declaration of 'readers '. "ms-help://MS.VSCC.v80/dv_commoner/local/redirect.htm?index='!DefaultContextWindowIndex'&keyword='jlca1003'"
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35 private System.Collections.ArrayList readers;
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37 public MultiFormatOneDReader(System.Collections.Hashtable hints)
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39 System.Collections.ArrayList possibleFormats = hints == null?null:(System.Collections.ArrayList) hints[DecodeHintType.POSSIBLE_FORMATS];
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40 bool useCode39CheckDigit = hints != null && hints[DecodeHintType.ASSUME_CODE_39_CHECK_DIGIT] != null;
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41 readers = System.Collections.ArrayList.Synchronized(new System.Collections.ArrayList(10));
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42 if (possibleFormats != null)
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44 if (possibleFormats.Contains(BarcodeFormat.EAN_13) || possibleFormats.Contains(BarcodeFormat.UPC_A) || possibleFormats.Contains(BarcodeFormat.EAN_8) || possibleFormats.Contains(BarcodeFormat.UPC_E))
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46 readers.Add(new MultiFormatUPCEANReader(hints));
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48 if (possibleFormats.Contains(BarcodeFormat.CODE_39))
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50 readers.Add(new Code39Reader(useCode39CheckDigit));
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52 if (possibleFormats.Contains(BarcodeFormat.CODE_128))
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54 readers.Add(new Code128Reader());
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56 if (possibleFormats.Contains(BarcodeFormat.ITF))
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58 readers.Add(new ITFReader());
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61 if ((readers.Count == 0))
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63 readers.Add(new MultiFormatUPCEANReader(hints));
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64 readers.Add(new Code39Reader());
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65 readers.Add(new Code128Reader());
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66 readers.Add(new ITFReader());
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70 public override Result decodeRow(int rowNumber, BitArray row, System.Collections.Hashtable hints)
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72 int size = readers.Count;
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73 for (int i = 0; i < size; i++)
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75 OneDReader reader = (OneDReader) readers[i];
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78 return reader.decodeRow(rowNumber, row, hints);
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80 catch (ReaderException re)
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86 throw ReaderException.Instance;
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