moved java files for pre-convert

src/oned/UPCAWriter.java

@@ -0,0 +1,53 @@
+/*
+ * Copyright 2010 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.oned;
+
+import com.google.zxing.BarcodeFormat;
+import com.google.zxing.EncodeHintType;
+import com.google.zxing.Writer;
+import com.google.zxing.common.BitMatrix;
+
+import java.util.Map;
+
+/**
+ * This object renders a UPC-A code as a {@link BitMatrix}.
+ *
+ * @author qwandor@google.com (Andrew Walbran)
+ */
+public final class UPCAWriter implements Writer {
+
+  private final EAN13Writer subWriter = new EAN13Writer();
+
+  @Override
+  public BitMatrix encode(String contents, BarcodeFormat format, int width, int height) {
+    return encode(contents, format, width, height, null);
+  }
+
+  @Override
+  public BitMatrix encode(String contents,
+                          BarcodeFormat format,
+                          int width,
+                          int height,
+                          Map<EncodeHintType,?> hints) {
+    if (format != BarcodeFormat.UPC_A) {
+      throw new IllegalArgumentException("Can only encode UPC-A, but got " + format);
+    }
+    // Transform a UPC-A code into the equivalent EAN-13 code and write it that way
+    return subWriter.encode('0' + contents, BarcodeFormat.EAN_13, width, height, hints);
+  }
+
+}