Add parts of zxing library to generate qr codes

OpenPGP-Keychain/src/com/google/zxing/Result.java

@@ -0,0 +1,143 @@
+/*
+ * Copyright 2007 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;
+
+import java.util.Enumeration;
+import java.util.Hashtable;
+
+/**
+ * <p>Encapsulates the result of decoding a barcode within an image.</p>
+ *
+ * @author Sean Owen
+ */
+public final class Result {
+
+  private final String text;
+  private final byte[] rawBytes;
+  private ResultPoint[] resultPoints;
+  private final BarcodeFormat format;
+  private Hashtable resultMetadata;
+  private final long timestamp;
+
+  public Result(String text,
+                byte[] rawBytes,
+                ResultPoint[] resultPoints,
+                BarcodeFormat format) {
+    this(text, rawBytes, resultPoints, format, System.currentTimeMillis());
+  }
+
+  public Result(String text,
+                byte[] rawBytes,
+                ResultPoint[] resultPoints,
+                BarcodeFormat format,
+                long timestamp) {
+    if (text == null && rawBytes == null) {
+      throw new IllegalArgumentException("Text and bytes are null");
+    }
+    this.text = text;
+    this.rawBytes = rawBytes;
+    this.resultPoints = resultPoints;
+    this.format = format;
+    this.resultMetadata = null;
+    this.timestamp = timestamp;
+  }
+
+  /**
+   * @return raw text encoded by the barcode, if applicable, otherwise <code>null</code>
+   */
+  public String getText() {
+    return text;
+  }
+
+  /**
+   * @return raw bytes encoded by the barcode, if applicable, otherwise <code>null</code>
+   */
+  public byte[] getRawBytes() {
+    return rawBytes;
+  }
+
+  /**
+   * @return points related to the barcode in the image. These are typically points
+   *         identifying finder patterns or the corners of the barcode. The exact meaning is
+   *         specific to the type of barcode that was decoded.
+   */
+  public ResultPoint[] getResultPoints() {
+    return resultPoints;
+  }
+
+  /**
+   * @return {@link BarcodeFormat} representing the format of the barcode that was decoded
+   */
+  public BarcodeFormat getBarcodeFormat() {
+    return format;
+  }
+
+  /**
+   * @return {@link Hashtable} mapping {@link ResultMetadataType} keys to values. May be
+   *   <code>null</code>. This contains optional metadata about what was detected about the barcode,
+   *   like orientation.
+   */
+  public Hashtable getResultMetadata() {
+    return resultMetadata;
+  }
+
+  public void putMetadata(ResultMetadataType type, Object value) {
+    if (resultMetadata == null) {
+      resultMetadata = new Hashtable(3);
+    }
+    resultMetadata.put(type, value);
+  }
+
+  public void putAllMetadata(Hashtable metadata) {
+    if (metadata != null) {
+      if (resultMetadata == null) {
+        resultMetadata = metadata;
+      } else {
+        Enumeration e = metadata.keys();
+        while (e.hasMoreElements()) {
+          ResultMetadataType key = (ResultMetadataType) e.nextElement();
+          Object value = metadata.get(key);
+          resultMetadata.put(key, value);
+        }
+      }
+    }
+  }
+
+  public void addResultPoints(ResultPoint[] newPoints) {
+    if (resultPoints == null) {
+      resultPoints = newPoints;
+    } else if (newPoints != null && newPoints.length > 0) {
+      ResultPoint[] allPoints = new ResultPoint[resultPoints.length + newPoints.length];
+      System.arraycopy(resultPoints, 0, allPoints, 0, resultPoints.length);
+      System.arraycopy(newPoints, 0, allPoints, resultPoints.length, newPoints.length);
+      resultPoints = allPoints;
+    }
+  }
+
+  public long getTimestamp() {
+    return timestamp;
+  }
+
+  public String toString() {
+    if (text == null) {
+      return "[" + rawBytes.length + " bytes]";
+    } else {
+      return text;
+    }
+  }
+
+}