+++ /dev/null
-/*\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
-*\r
-* http://www.apache.org/licenses/LICENSE-2.0\r
-*\r
-* Unless required by applicable law or agreed to in writing, software\r
-* distributed under the License is distributed on an "AS IS" BASIS,\r
-* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\r
-* See the License for the specific language governing permissions and\r
-* limitations under the License.\r
-*/\r
-\r
-using System;\r
-using System.Collections;\r
-using com.google.zxing.qrcode;\r
-using com.google.zxing.oned;\r
-using com.google.zxing.datamatrix;\r
-\r
-namespace com.google.zxing\r
-{\r
- public sealed class MultiFormatReader : Reader\r
- { \r
- private Hashtable hints;\r
- private ArrayList readers;\r
-\r
- /**\r
- * This version of decode honors the intent of Reader.decode(MonochromeBitmapSource) in that it\r
- * passes null as a hint to the decoders. However, that makes it inefficient to call repeatedly.\r
- * Use setHints() followed by decodeWithState() for continuous scan applications.\r
- *\r
- * @param image The pixel data to decode\r
- * @return The contents of the image\r
- * @throws ReaderException Any errors which occurred\r
- */\r
- public Result decode(MonochromeBitmapSource image){\r
- try{\r
- setHints(null);\r
- return decodeInternal(image);\r
- }\r
- catch(Exception e){\r
- throw new ReaderException(e.Message);\r
- } \r
- }\r
-\r
- /**\r
- * Decode an image using the hints provided. Does not honor existing state.\r
- *\r
- * @param image The pixel data to decode\r
- * @param hints The hints to use, clearing the previous state.\r
- * @return The contents of the image\r
- * @throws ReaderException Any errors which occurred\r
- */\r
- public Result decode(MonochromeBitmapSource image, Hashtable hints){\r
- try{\r
- setHints(hints);\r
- return decodeInternal(image);\r
- }catch(Exception e){\r
- throw new ReaderException (e.Message);\r
- } \r
- }\r
-\r
- /**\r
- * Decode an image using the state set up by calling setHints() previously. Continuous scan\r
- * clients will get a <b>large</b> speed increase by using this instead of decode().\r
- *\r
- * @param image The pixel data to decode\r
- * @return The contents of the image\r
- * @throws ReaderException Any errors which occurred\r
- */\r
- public Result decodeWithState(MonochromeBitmapSource image){\r
- try{\r
- // Make sure to set up the default state so we don't crash\r
- if (readers == null) {\r
- setHints(null);\r
- }\r
- return decodeInternal(image);\r
- }catch(Exception e){\r
- throw new ReaderException(e.Message);\r
- } \r
- }\r
-\r
- /**\r
- * This method adds state to the MultiFormatReader. By setting the hints once, subsequent calls\r
- * to decodeWithState(image) can reuse the same set of readers without reallocating memory. This\r
- * is important for performance in continuous scan clients.\r
- *\r
- * @param hints The set of hints to use for subsequent calls to decode(image)\r
- */\r
- public void setHints(Hashtable hints) {\r
- this.hints = hints;\r
-\r
- bool tryHarder = hints != null && hints.ContainsKey(DecodeHintType.TRY_HARDER);\r
-\r
- ArrayList possibleFormats = hints == null ? null : (ArrayList)hints[(DecodeHintType.POSSIBLE_FORMATS)];\r
- readers = new ArrayList();\r
- if (possibleFormats != null)\r
- {\r
- bool addOneDReader =\r
- possibleFormats.Contains(BarcodeFormat.UPC_A) ||\r
- possibleFormats.Contains(BarcodeFormat.UPC_E) ||\r
- possibleFormats.Contains(BarcodeFormat.EAN_13) ||\r
- possibleFormats.Contains(BarcodeFormat.EAN_8) ||\r
- possibleFormats.Contains(BarcodeFormat.CODE_39) ||\r
- possibleFormats.Contains(BarcodeFormat.CODE_128);\r
- // Put 1D readers upfront in "normal" mode\r
-\r
- if (addOneDReader && !tryHarder)\r
- {\r
- readers.Add(new MultiFormatOneDReader(hints));\r
- }\r
-\r
- if (possibleFormats.Contains(BarcodeFormat.QR_CODE))\r
- {\r
- readers.Add(new QRCodeReader());\r
- }\r
- // TODO re-enable once Data Matrix is ready\r
- if (possibleFormats.Contains(BarcodeFormat.DATAMATRIX)) {\r
- readers.Add(new DataMatrixReader());\r
- }\r
- // At end in "try harder" mode\r
- if (addOneDReader && tryHarder)\r
- {\r
- readers.Add(new MultiFormatOneDReader(hints));\r
- }\r
- }\r
-\r
- if (readers.Count == 0)\r
- {\r
- if (!tryHarder)\r
- {\r
- readers.Add(new MultiFormatOneDReader(hints));\r
- }\r
- readers.Add(new QRCodeReader());\r
- // TODO re-enable once Data Matrix is ready\r
- readers.Add(new DataMatrixReader());\r
- if (tryHarder)\r
- {\r
- readers.Add(new MultiFormatOneDReader(hints));\r
- }\r
- }\r
- }\r
-\r
- private Result decodeInternal(MonochromeBitmapSource image) {\r
- try\r
- {\r
- int size = readers.Count;\r
- for (int i = 0; i < size; i++)\r
- {\r
- Reader reader = (Reader)readers[i];\r
- try\r
- {\r
- return reader.decode(image, hints);\r
- }\r
- catch (ReaderException re)\r
- {\r
- // continue\r
- }\r
- }\r
-\r
- throw new ReaderException("");\r
- }\r
- catch (Exception e) {\r
- throw new ReaderException(e.Message);\r
- }\r
- }\r
- \r
- \r
- }\r
-}
\ No newline at end of file
projects / zxing.git / blobdiff