cleaned up many warnings

src/writer.rs

@@ -0,0 +1,63 @@
+
+/*
+ * Copyright 2008 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;
+
+use crate::{BarcodeFormat, common::BitMatrix, Exceptions, EncodingHintDictionary};
+
+/**
+ * The base class for all objects which encode/generate a barcode image.
+ *
+ * @author dswitkin@google.com (Daniel Switkin)
+ */
+pub trait Writer {
+    /**
+     * Encode a barcode using the default settings.
+     *
+     * @param contents The contents to encode in the barcode
+     * @param format The barcode format to generate
+     * @param width The preferred width in pixels
+     * @param height The preferred height in pixels
+     * @return {@link BitMatrix} representing encoded barcode image
+     * @throws WriterException if contents cannot be encoded legally in a format
+     */
+    fn encode(
+        &self,
+        contents: &str,
+        format: &BarcodeFormat,
+        width: i32,
+        height: i32,
+    ) -> Result<BitMatrix, Exceptions>;
+
+    /**
+     * @param contents The contents to encode in the barcode
+     * @param format The barcode format to generate
+     * @param width The preferred width in pixels
+     * @param height The preferred height in pixels
+     * @param hints Additional parameters to supply to the encoder
+     * @return {@link BitMatrix} representing encoded barcode image
+     * @throws WriterException if contents cannot be encoded legally in a format
+     */
+    fn encode_with_hints(
+        &self,
+        contents: &str,
+        format: &BarcodeFormat,
+        width: i32,
+        height: i32,
+        hints: &EncodingHintDictionary,
+    ) -> Result<BitMatrix, Exceptions>;
+}