oned writers + tests

src/oned/upc_a_writer.rs

@@ -0,0 +1,112 @@
+/*
+ * 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.
+ */
+
+use std::collections::HashMap;
+
+use crate::{BarcodeFormat, Exceptions, Writer};
+
+use super::EAN13Writer;
+
+/**
+ * This object renders a UPC-A code as a {@link BitMatrix}.
+ *
+ * @author qwandor@google.com (Andrew Walbran)
+ */
+pub struct UPCAWriter(EAN13Writer);
+
+impl Default for UPCAWriter {
+    fn default() -> Self {
+        Self(Default::default())
+    }
+}
+
+impl Writer for UPCAWriter {
+    fn encode(
+        &self,
+        contents: &str,
+        format: &crate::BarcodeFormat,
+        width: i32,
+        height: i32,
+    ) -> Result<crate::common::BitMatrix, crate::Exceptions> {
+        self.encode_with_hints(contents, format, width, height, &HashMap::new())
+    }
+
+    fn encode_with_hints(
+        &self,
+        contents: &str,
+        format: &crate::BarcodeFormat,
+        width: i32,
+        height: i32,
+        hints: &crate::EncodingHintDictionary,
+    ) -> Result<crate::common::BitMatrix, crate::Exceptions> {
+        if format != &BarcodeFormat::UPC_A {
+            return Err(Exceptions::IllegalArgumentException(format!(
+                "Can only encode UPC-A, but got {:?}",
+                format
+            )));
+        }
+        // Transform a UPC-A code into the equivalent EAN-13 code and write it that way
+        self.0.encode_with_hints(
+            &format!("0{}", contents),
+            &BarcodeFormat::EAN_13,
+            width,
+            height,
+            &hints,
+        )
+    }
+}
+
+// private final EAN13Writer subWriter = new EAN13Writer();
+
+/**
+ * @author qwandor@google.com (Andrew Walbran)
+ */
+#[cfg(test)]
+mod UPCAWriterTestCase {
+    use crate::{common::BitMatrixTestCase, BarcodeFormat, Writer};
+
+    use super::UPCAWriter;
+
+    #[test]
+    fn testEncode() {
+        let testStr =
+        "00001010100011011011101100010001011010111101111010101011100101110100100111011001101101100101110010100000";
+        let result = UPCAWriter::default()
+            .encode(
+                "485963095124",
+                &BarcodeFormat::UPC_A,
+                testStr.chars().count() as i32,
+                0,
+            )
+            .expect("ok");
+        assert_eq!(testStr, BitMatrixTestCase::matrix_to_string(&result));
+    }
+
+    #[test]
+    fn testAddChecksumAndEncode() {
+        let testStr =
+        "00001010011001001001101111010100011011000101011110101010001001001000111010011100101100110110110010100000";
+        let result = UPCAWriter::default()
+            .encode(
+                "12345678901",
+                &BarcodeFormat::UPC_A,
+                testStr.chars().count() as i32,
+                0,
+            )
+            .expect("ok");
+        assert_eq!(testStr, BitMatrixTestCase::matrix_to_string(&result));
+    }
+}