1 files changed, 72 insertions, 0 deletions
diff --git a/libraries/zxing/src/com/google/zxing/multi/qrcode/detector/MultiDetector.java b/libraries/zxing/src/com/google/zxing/multi/qrcode/detector/MultiDetector.java
new file mode 100644
index 000000000..584c41404
--- /dev/null
+++ b/libraries/zxing/src/com/google/zxing/multi/qrcode/detector/MultiDetector.java
@@ -0,0 +1,72 @@
+/*
+ * Copyright 2009 ZXing authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.zxing.multi.qrcode.detector;
+
+import com.google.zxing.NotFoundException;
+import com.google.zxing.ReaderException;
+import com.google.zxing.common.BitMatrix;
+import com.google.zxing.common.DetectorResult;
+import com.google.zxing.qrcode.detector.Detector;
+import com.google.zxing.qrcode.detector.FinderPatternInfo;
+
+import java.util.Hashtable;
+import java.util.Vector;
+
+/**
+ * <p>Encapsulates logic that can detect one or more QR Codes in an image, even if the QR Code
+ * is rotated or skewed, or partially obscured.</p>
+ *
+ * @author Sean Owen
+ * @author Hannes Erven
+ */
+public final class MultiDetector extends Detector {
+
+  private static final DetectorResult[] EMPTY_DETECTOR_RESULTS = new DetectorResult[0];
+
+  public MultiDetector(BitMatrix image) {
+    super(image);
+  }
+
+  public DetectorResult[] detectMulti(Hashtable hints) throws NotFoundException {
+    BitMatrix image = getImage();
+    MultiFinderPatternFinder finder = new MultiFinderPatternFinder(image);
+    FinderPatternInfo[] info = finder.findMulti(hints);
+
+    if (info == null || info.length == 0) {
+      throw NotFoundException.getNotFoundInstance();
+    }
+
+    Vector result = new Vector();
+    for (int i = 0; i < info.length; i++) {
+      try {
+        result.addElement(processFinderPatternInfo(info[i]));
+      } catch (ReaderException e) {
+        // ignore
+      }
+    }
+    if (result.isEmpty()) {
+      return EMPTY_DETECTOR_RESULTS;
+    } else {
+      DetectorResult[] resultArray = new DetectorResult[result.size()];
+      for (int i = 0; i < result.size(); i++) {
+        resultArray[i] = (DetectorResult) result.elementAt(i);
+      }
+      return resultArray;
+    }
+  }
+
+}