cleaned up many warnings

src/RGBLuminanceSourceTestCase.rs

@@ -26,13 +26,13 @@
 
 use crate::{RGBLuminanceSource, LuminanceSource};
 
-  static src_data : [u32;9] = [0x000000, 0x7F7F7F, 0xFFFFFF,
+  const SRC_DATA : [u32;9] = [0x000000, 0x7F7F7F, 0xFFFFFF,
   0xFF0000, 0x00FF00, 0x0000FF,
   0x0000FF, 0x00FF00, 0xFF0000];
 
   #[test]
   fn testCrop() {
-    let SOURCE = RGBLuminanceSource::new_with_width_height_pixels(3,3,&src_data.to_vec());
+    let SOURCE = RGBLuminanceSource::new_with_width_height_pixels(3,3,&SRC_DATA.to_vec());
 
     assert!(SOURCE.isCropSupported());
     let cropped = SOURCE.crop(1, 1, 1, 1).unwrap();
@@ -43,7 +43,7 @@ use crate::{RGBLuminanceSource, LuminanceSource};
 
   #[test]
   fn testMatrix() {
-    let SOURCE = RGBLuminanceSource::new_with_width_height_pixels(3,3,&src_data.to_vec());
+    let SOURCE = RGBLuminanceSource::new_with_width_height_pixels(3,3,&SRC_DATA.to_vec());
 
     assert_eq!(vec![ 0x00, 0x7F,  0xFF, 0x3F, 0x7F, 0x3F, 0x3F, 0x7F, 0x3F ],
                       SOURCE.getMatrix());
@@ -57,7 +57,7 @@ use crate::{RGBLuminanceSource, LuminanceSource};
 
   #[test]
   fn testGetRow() {
-    let SOURCE = RGBLuminanceSource::new_with_width_height_pixels(3,3,&src_data.to_vec());
+    let SOURCE = RGBLuminanceSource::new_with_width_height_pixels(3,3,&SRC_DATA.to_vec());
 
     assert_eq!(vec![ 0x3F, 0x7F, 0x3F ], SOURCE.getRow(2, &vec![0;3]));
   }

src/aztec/EncoderTest.rs

@@ -25,7 +25,6 @@ use crate::{
         shared_test_methods::{stripSpace, toBitArray, toBooleanArray},
         AztecDetectorResult::AztecDetectorRXingResult,
     },
-    common::{BitArray, BitMatrix},
     BarcodeFormat, EncodeHintType, EncodeHintValue, RXingResultPoint,
 };
 
@@ -49,8 +48,8 @@ const UTF_8: EncodingRef = encoding::all::UTF_8; //StandardCharsets.UTF_8;
 const ISO_8859_15: EncodingRef = encoding::all::ISO_8859_15; //Charset.forName("ISO-8859-15");
 const WINDOWS_1252: EncodingRef = encoding::all::WINDOWS_1252; //Charset.forName("Windows-1252");
 
-const DOTX: &str = "[^.X]";
+// const DOTX: &str = "[^.X]";
-const SPACES: &str = "\\s+";
+// const SPACES: &str = "\\s+";
 const NO_POINTS: Vec<RXingResultPoint> = Vec::new();
 
 // real life tests

src/aztec/decoder.rs

@@ -14,12 +14,11 @@
  * limitations under the License.
  */
 
-use encoding::Encoding;
 
 use crate::{
     common::{
         reedsolomon::{
-            get_predefined_genericgf, GenericGF, PredefinedGenericGF, ReedSolomonDecoder, GenericGFRef,
+            get_predefined_genericgf, PredefinedGenericGF, ReedSolomonDecoder, GenericGFRef,
         },
         BitMatrix, CharacterSetECI, DecoderRXingResult, DetectorRXingResult,
     },

src/aztec/detector.rs

@@ -19,7 +19,7 @@ use std::fmt;
 use crate::{
     common::{
         detector::{MathUtils, WhiteRectangleDetector},
-        reedsolomon::{self, GenericGF, ReedSolomonDecoder},
+        reedsolomon::{self, ReedSolomonDecoder},
         BitMatrix, DefaultGridSampler, GridSampler,
     },
     exceptions::Exceptions,

src/aztec/encoder/encoder.rs

@@ -19,7 +19,7 @@ use encoding::Encoding;
 use crate::{
     common::{
         reedsolomon::{
-            get_predefined_genericgf, GenericGF, PredefinedGenericGF, ReedSolomonEncoder, GenericGFRef,
+            get_predefined_genericgf, PredefinedGenericGF, ReedSolomonEncoder, GenericGFRef,
         },
         BitArray, BitMatrix,
     },

src/aztec/encoder/token.rs

@@ -14,8 +14,6 @@
  * limitations under the License.
  */
 
-use std::rc::Rc;
-
 use crate::common::BitArray;
 
 use super::{BinaryShiftToken, SimpleToken};

src/barcode_format.rs

@@ -0,0 +1,77 @@
+
+/*
+ * 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;
+
+/**
+ * Enumerates barcode formats known to this package. Please keep alphabetized.
+ *
+ * @author Sean Owen
+ */
+#[derive(Debug, PartialEq, Eq, Hash, Clone, Copy)]
+pub enum BarcodeFormat {
+    /** Aztec 2D barcode format. */
+    AZTEC,
+
+    /** CODABAR 1D format. */
+    CODABAR,
+
+    /** Code 39 1D format. */
+    CODE_39,
+
+    /** Code 93 1D format. */
+    CODE_93,
+
+    /** Code 128 1D format. */
+    CODE_128,
+
+    /** Data Matrix 2D barcode format. */
+    DATA_MATRIX,
+
+    /** EAN-8 1D format. */
+    EAN_8,
+
+    /** EAN-13 1D format. */
+    EAN_13,
+
+    /** ITF (Interleaved Two of Five) 1D format. */
+    ITF,
+
+    /** MaxiCode 2D barcode format. */
+    MAXICODE,
+
+    /** PDF417 format. */
+    PDF_417,
+
+    /** QR Code 2D barcode format. */
+    QR_CODE,
+
+    /** RSS 14 */
+    RSS_14,
+
+    /** RSS EXPANDED */
+    RSS_EXPANDED,
+
+    /** UPC-A 1D format. */
+    UPC_A,
+
+    /** UPC-E 1D format. */
+    UPC_E,
+
+    /** UPC/EAN extension format. Not a stand-alone format. */
+    UPC_EAN_EXTENSION,
+}

src/binarizer.rs

@@ -0,0 +1,76 @@
+
+/*
+ * 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;
+
+use crate::{common::{BitArray, BitMatrix}, Exceptions, LuminanceSource};
+
+/**
+ * This class hierarchy provides a set of methods to convert luminance data to 1 bit data.
+ * It allows the algorithm to vary polymorphically, for example allowing a very expensive
+ * thresholding technique for servers and a fast one for mobile. It also permits the implementation
+ * to vary, e.g. a JNI version for Android and a Java fallback version for other platforms.
+ *
+ * @author dswitkin@google.com (Daniel Switkin)
+ */
+pub trait Binarizer {
+    //private final LuminanceSource source;
+    //fn new(source:dyn LuminanceSource) -> Self;
+
+    fn getLuminanceSource(&self) -> &Box<dyn LuminanceSource>;
+
+    /**
+     * Converts one row of luminance data to 1 bit data. May actually do the conversion, or return
+     * cached data. Callers should assume this method is expensive and call it as seldom as possible.
+     * This method is intended for decoding 1D barcodes and may choose to apply sharpening.
+     * For callers which only examine one row of pixels at a time, the same BitArray should be reused
+     * and passed in with each call for performance. However it is legal to keep more than one row
+     * at a time if needed.
+     *
+     * @param y The row to fetch, which must be in [0, bitmap height)
+     * @param row An optional preallocated array. If null or too small, it will be ignored.
+     *            If used, the Binarizer will call BitArray.clear(). Always use the returned object.
+     * @return The array of bits for this row (true means black).
+     * @throws NotFoundException if row can't be binarized
+     */
+    fn getBlackRow(&self, y: usize, row: &mut BitArray) -> Result<BitArray, Exceptions>;
+
+    /**
+     * Converts a 2D array of luminance data to 1 bit data. As above, assume this method is expensive
+     * and do not call it repeatedly. This method is intended for decoding 2D barcodes and may or
+     * may not apply sharpening. Therefore, a row from this matrix may not be identical to one
+     * fetched using getBlackRow(), so don't mix and match between them.
+     *
+     * @return The 2D array of bits for the image (true means black).
+     * @throws NotFoundException if image can't be binarized to make a matrix
+     */
+    fn getBlackMatrix(&self) -> Result<BitMatrix, Exceptions>;
+
+    /**
+     * Creates a new object with the same type as this Binarizer implementation, but with pristine
+     * state. This is needed because Binarizer implementations may be stateful, e.g. keeping a cache
+     * of 1 bit data. See Effective Java for why we can't use Java's clone() method.
+     *
+     * @param source The LuminanceSource this Binarizer will operate on.
+     * @return A new concrete Binarizer implementation object.
+     */
+    fn createBinarizer(&self, source: Box<dyn LuminanceSource>) -> Box<dyn Binarizer>;
+
+    fn getWidth(&self) -> usize;
+
+    fn getHeight(&self) -> usize;
+}

src/binary_bitmap.rs

@@ -0,0 +1,164 @@
+
+/*
+ * 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;
+
+use std::fmt;
+
+use crate::{common::{BitMatrix, BitArray}, Exceptions, Binarizer};
+
+/**
+ * This class is the core bitmap class used by ZXing to represent 1 bit data. Reader objects
+ * accept a BinaryBitmap and attempt to decode it.
+ *
+ * @author dswitkin@google.com (Daniel Switkin)
+ */
+pub struct BinaryBitmap {
+    binarizer: Box<dyn Binarizer>,
+    matrix: BitMatrix,
+}
+
+impl BinaryBitmap {
+    pub fn new(binarizer: Box<dyn Binarizer>) -> Self {
+        Self {
+            matrix: binarizer.getBlackMatrix().unwrap(),
+            binarizer: binarizer,
+        }
+    }
+
+    /**
+     * @return The width of the bitmap.
+     */
+    pub fn getWidth(&self) -> usize {
+        return self.binarizer.getWidth();
+    }
+
+    /**
+     * @return The height of the bitmap.
+     */
+    pub fn getHeight(&self) -> usize {
+        return self.binarizer.getHeight();
+    }
+
+    /**
+     * Converts one row of luminance data to 1 bit data. May actually do the conversion, or return
+     * cached data. Callers should assume this method is expensive and call it as seldom as possible.
+     * This method is intended for decoding 1D barcodes and may choose to apply sharpening.
+     *
+     * @param y The row to fetch, which must be in [0, bitmap height)
+     * @param row An optional preallocated array. If null or too small, it will be ignored.
+     *            If used, the Binarizer will call BitArray.clear(). Always use the returned object.
+     * @return The array of bits for this row (true means black).
+     * @throws NotFoundException if row can't be binarized
+     */
+    pub fn getBlackRow(&self, y: usize, row: &mut BitArray) -> Result<BitArray, Exceptions> {
+        return self.binarizer.getBlackRow(y, row);
+    }
+
+    /**
+     * Converts a 2D array of luminance data to 1 bit. As above, assume this method is expensive
+     * and do not call it repeatedly. This method is intended for decoding 2D barcodes and may or
+     * may not apply sharpening. Therefore, a row from this matrix may not be identical to one
+     * fetched using getBlackRow(), so don't mix and match between them.
+     *
+     * @return The 2D array of bits for the image (true means black).
+     * @throws NotFoundException if image can't be binarized to make a matrix
+     */
+    pub fn getBlackMatrix(&self) -> Result<&BitMatrix, Exceptions> {
+        // The matrix is created on demand the first time it is requested, then cached. There are two
+        // reasons for this:
+        // 1. This work will never be done if the caller only installs 1D Reader objects, or if a
+        //    1D Reader finds a barcode before the 2D Readers run.
+        // 2. This work will only be done once even if the caller installs multiple 2D Readers.
+        return Ok(&self.matrix);
+    }
+
+    /**
+     * @return Whether this bitmap can be cropped.
+     */
+    pub fn isCropSupported(&self) -> bool {
+        let b = &self.binarizer;
+        let r = &b.getLuminanceSource();
+        let isCropOk = r.isCropSupported();
+        return isCropOk;
+    }
+
+    /**
+     * Returns a new object with cropped image data. Implementations may keep a reference to the
+     * original data rather than a copy. Only callable if isCropSupported() is true.
+     *
+     * @param left The left coordinate, which must be in [0,getWidth())
+     * @param top The top coordinate, which must be in [0,getHeight())
+     * @param width The width of the rectangle to crop.
+     * @param height The height of the rectangle to crop.
+     * @return A cropped version of this object.
+     */
+    pub fn crop(&self, left: usize, top: usize, width: usize, height: usize) -> BinaryBitmap {
+        let newSource = self
+            .binarizer
+            .getLuminanceSource()
+            .crop(left, top, width, height);
+        return BinaryBitmap::new(
+            self.binarizer
+                .createBinarizer(newSource.expect("new lum source expected")),
+        );
+    }
+
+    /**
+     * @return Whether this bitmap supports counter-clockwise rotation.
+     */
+    pub fn isRotateSupported(&self) -> bool {
+        return self.binarizer.getLuminanceSource().isRotateSupported();
+    }
+
+    /**
+     * Returns a new object with rotated image data by 90 degrees counterclockwise.
+     * Only callable if {@link #isRotateSupported()} is true.
+     *
+     * @return A rotated version of this object.
+     */
+    pub fn rotateCounterClockwise(&self) -> BinaryBitmap {
+        let newSource = self.binarizer.getLuminanceSource().rotateCounterClockwise();
+        return BinaryBitmap::new(
+            self.binarizer
+                .createBinarizer(newSource.expect("new lum source expected")),
+        );
+    }
+
+    /**
+     * Returns a new object with rotated image data by 45 degrees counterclockwise.
+     * Only callable if {@link #isRotateSupported()} is true.
+     *
+     * @return A rotated version of this object.
+     */
+    pub fn rotateCounterClockwise45(&self) -> BinaryBitmap {
+        let newSource = self
+            .binarizer
+            .getLuminanceSource()
+            .rotateCounterClockwise45();
+        return BinaryBitmap::new(
+            self.binarizer
+                .createBinarizer(newSource.expect("new lum source expected")),
+        );
+    }
+}
+
+impl fmt::Display for BinaryBitmap {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        write!(f, "{}", self.getBlackMatrix().unwrap())
+    }
+}

src/buffered_image_luminance_source.rs

@@ -21,7 +21,7 @@
 // import java.awt.image.BufferedImage;
 // import java.awt.image.WritableRaster;
 
-use image::{DynamicImage, EncodableLayout, GenericImage, GrayImage, ImageBuffer, Luma};
+use image::{DynamicImage, ImageBuffer, Luma};
 use imageproc::geometric_transformations::rotate_about_center;
 
 use crate::LuminanceSource;

src/client/result/AddressBookAUResultParser.rs

@@ -62,10 +62,10 @@ pub fn parse(result: &RXingResult) -> Option<ParsedClientResult> {
             Vec::new()
         },
         Vec::new(),
-        "".to_owned(),
+        pronunciation.unwrap_or_default(),//"".to_owned(),
         phoneNumbers,
         Vec::new(),
-        Vec::new(),
+        emails, //Vec::new(),
         Vec::new(),
         "".to_owned(),
         note,

src/client/result/BookmarkDoCoMoResultParser.rs

@@ -21,7 +21,7 @@
 use crate::RXingResult;
 
 use super::{
-    ParsedClientResult, ResultParser, URIParsedRXingResult, URIParsedResult, URIResultParser,
+    ParsedClientResult, ResultParser, URIParsedRXingResult, URIResultParser,
 };
 
 /**

src/client/result/CalendarParsedResult.rs

@@ -27,7 +27,7 @@
 // import java.util.regex.Matcher;
 // import java.util.regex.Pattern;
 
-use chrono::{Date, DateTime, Local, NaiveDateTime, TimeZone, Utc};
+use chrono::{ DateTime, NaiveDateTime, TimeZone, Utc};
 use chrono_tz::Tz;
 use regex::Regex;
 use lazy_static::lazy_static;
@@ -35,8 +35,7 @@ use lazy_static::lazy_static;
 use crate::exceptions::Exceptions;
 
 use super::{
-    maybe_append_multiple, maybe_append_string, ParsedRXingResult, ParsedRXingResultType,
+    maybe_append_multiple, maybe_append_string, ParsedRXingResult, ParsedRXingResultType
-    ResultParser,
 };
 
 // const RFC2445_DURATION: &'static str =

src/client/result/CalendarParsedResultTestCase.rs

@@ -34,7 +34,7 @@
 //  */
 // public final class CalendarParsedRXingResultTestCase extends Assert {
 
-use chrono::{DateTime, NaiveDateTime, Utc};
+use chrono::{NaiveDateTime};
 
 use crate::{
     client::result::{ParsedClientResult, ParsedRXingResultType},
@@ -44,7 +44,7 @@ use crate::{
 use super::{ParsedRXingResult, ResultParser};
 
 const EPSILON: f64 = 1.0E-10;
-const DATE_FORMAT_STRING: &'static str = "yyyyMMdd'T'HHmmss'Z'";
+// const DATE_FORMAT_STRING: &'static str = "yyyyMMdd'T'HHmmss'Z'";
 
 // private static DateFormat makeGMTFormat() {
 //   DateFormat format = new SimpleDateFormat("yyyyMMdd'T'HHmmss'Z'", Locale.ENGLISH);

src/client/result/EmailAddressParsedResult.rs

@@ -16,7 +16,7 @@
 
 // package com.google.zxing.client.result;
 
-use super::{maybe_append_string, ParsedRXingResult, ParsedRXingResultType, ResultParser};
+use super::{ ParsedRXingResult, ParsedRXingResultType, ResultParser};
 
 /**
  * Represents a parsed result that encodes an email message including recipients, subject

src/client/result/ExpandedProductParsedResult.rs

@@ -29,7 +29,7 @@
 // import java.util.Map;
 // import java.util.Objects;
 
-use std::{collections::HashMap, hash::Hash};
+use std::{collections::HashMap};
 
 use super::{ParsedRXingResult, ParsedRXingResultType};
 

src/client/result/ExpandedProductParsedResultTestCase.rs

@@ -43,7 +43,7 @@
 use std::collections::HashMap;
 
 use crate::{
-    client::result::{ParsedClientResult, ProductParsedResult},
+    client::result::{ParsedClientResult},
     RXingResult, BarcodeFormat,
 };
 

src/client/result/ExpandedProductResultParser.rs

@@ -85,7 +85,6 @@ pub fn parse(result: &crate::RXingResult) -> Option<super::ParsedClientResult> {
             "00" => sscc = value,
             "01" => productID = value,
             "10" => lotNumber = value,
-            "10" => lotNumber = value,
             "11" => productionDate = value,
             "13" => packagingDate = value,
             "15" => bestBeforeDate = value,

src/client/result/ISBNResultParser.rs

@@ -19,8 +19,6 @@
 // import com.google.zxing.BarcodeFormat;
 // import com.google.zxing.RXingResult;
 
-use std::result;
-
 use crate::BarcodeFormat;
 
 use super::{ ResultParser, ISBNParsedRXingResult, ParsedClientResult};

src/client/result/ParsedReaderResultTestCase.rs

@@ -27,7 +27,7 @@
 // import java.util.Locale;
 // import java.util.TimeZone;
 
-use chrono::{Local, TimeZone, Utc};
+use chrono::{TimeZone, Utc};
 
 use crate::{client::result::ParsedRXingResult, BarcodeFormat, RXingResult};
 

src/client/result/ParsedResult.rs

@@ -16,8 +16,6 @@
 
 // package com.google.zxing.client.result;
 
-use std::any::Any;
-
 use super::ParsedRXingResultType;
 
 /**

src/client/result/ProductParsedResultTestCase.rs

@@ -28,7 +28,7 @@
  */
 // public final class ProductParsedRXingResultTestCase extends Assert {
 
-use crate::{BarcodeFormat, RXingResult, client::result::{ParsedRXingResult, ParsedRXingResultType, ProductParsedResult, ParsedClientResult}};
+use crate::{BarcodeFormat, RXingResult, client::result::{ParsedRXingResult, ParsedRXingResultType, ParsedClientResult}};
 
 use super::ResultParser;
 

src/client/result/ResultParser.rs

@@ -38,8 +38,7 @@ use crate::{exceptions::Exceptions, RXingResult};
 use super::{
     AddressBookAUResultParser, AddressBookDoCoMoResultParser, BizcardResultParser,
     BookmarkDoCoMoResultParser, EmailAddressResultParser, EmailDoCoMoResultParser,
-    ExpandedProductResultParser, GeoResultParser, ISBNResultParser, ParsedClientResult,
+    ExpandedProductResultParser, GeoResultParser, ISBNResultParser, ParsedClientResult, ProductResultParser, SMSMMSResultParser, SMTPResultParser, TelResultParser,
-    ParsedRXingResult, ProductResultParser, SMSMMSResultParser, SMTPResultParser, TelResultParser,
     TextParsedRXingResult, URIResultParser, URLTOResultParser, VCardResultParser,
     VEventResultParser, VINResultParser, WifiResultParser, SMSTOMMSTOResultParser,
 };
@@ -101,7 +100,7 @@ const AMPERSAND: &'static str = "&"; // private static final Pattern AMPERSAND =
 const EQUALS: &'static str = "="; //private static final Pattern EQUALS = Pattern.compile("=");
 const BYTE_ORDER_MARK: &'static str = "\u{feff}"; //private static final String BYTE_ORDER_MARK = "\ufeff";
 
-const EMPTY_STR_ARRAY: &'static str = "";
+// const EMPTY_STR_ARRAY: &'static str = "";
 
 pub fn getMassagedText(result: &RXingResult) -> String {
     let mut text = result.getText().clone();

src/client/result/TelParsedResultTestCase.rs

@@ -27,12 +27,11 @@
  * @author Sean Owen
  */
 // public final class TelParsedRXingResultTestCase extends Assert {
-use std::any::Any;
 
 use crate::{
     client::result::{
         ParsedClientResult, ParsedRXingResult, ParsedRXingResultType, 
-        TelParsedRXingResult,
+        
     },
     BarcodeFormat, RXingResult,
 };

src/client/result/TelResultParser.rs

@@ -18,7 +18,7 @@
 
 // import com.google.zxing.RXingResult;
 
-use super::{TelParsedRXingResult, ParsedRXingResult, ParsedClientResult, ResultParser};
+use super::{TelParsedRXingResult, ParsedClientResult, ResultParser};
 
 /**
  * Parses a "tel:" URI result, which specifies a phone number.

src/client/result/VCardResultParser.rs

@@ -30,7 +30,6 @@
 
 use std::convert::TryFrom;
 
-use encoding::all::encodings;
 use regex::Regex;
 
 use lazy_static::lazy_static;

src/common/BitArrayTestCase.rs

@@ -111,16 +111,16 @@ use rand::Rng;
   #[test]
   fn test_get_next_set5() {
     let mut r = rand::thread_rng();
-    for i in 0 .. 10 {
+    for _i in 0 .. 10 {
     // for (int i = 0; i < 10; i++) {
       let  mut array =  BitArray::with_size(1 + r.gen_range(0..100));
       let numSet = r.gen_range(0..20);
-      for j in 0..numSet {
+      for _j in 0..numSet {
       // for (int j = 0; j < numSet; j++) {
         array.set(r.gen_range(0..array.getSize()));
       }
       let numQueries = r.gen_range(0..20);
-      for j in 0..numQueries {
+      for _j in 0..numQueries {
       // for (int j = 0; j < numQueries; j++) {
         let query = r.gen_range(0..array.getSize());
         let mut expected = query;
@@ -151,7 +151,7 @@ use rand::Rng;
   #[test]
   fn test_append_bit(){
     let mut array = BitArray::new();
-    array.appendBits(0x000001E, 6);
+    array.appendBits(0x000001E, 6).expect("must append)");
     let mut array_2 = BitArray::new();
     array_2.appendBit(false);
     array_2.appendBit(true);

src/common/BitMatrixTestCase.rs

@@ -58,7 +58,7 @@ use super::BitMatrix;
   #[test]
   fn test_set_region() {
     let  mut matrix =  BitMatrix::with_single_dimension(5);
-    matrix.setRegion(1, 1, 3, 3);
+    matrix.setRegion(1, 1, 3, 3).expect("must set");
     for y in 0..5 {
     // for (int y = 0; y < 5; y++) {
       for x in 0..5{
@@ -72,11 +72,11 @@ use super::BitMatrix;
   fn test_enclosing() {
     let  mut matrix =  BitMatrix::with_single_dimension(5);
     assert!(matrix.getEnclosingRectangle().is_none());
-    matrix.setRegion(1, 1, 1, 1);
+    matrix.setRegion(1, 1, 1, 1).expect("must set");
     assert_eq!(vec![ 1, 1, 1, 1 ], matrix.getEnclosingRectangle().unwrap());
-    matrix.setRegion(1, 1, 3, 2);
+    matrix.setRegion(1, 1, 3, 2).expect("must set");
     assert_eq!(vec![ 1, 1, 3, 2 ], matrix.getEnclosingRectangle().unwrap());
-    matrix.setRegion(0, 0, 5, 5);
+    matrix.setRegion(0, 0, 5, 5).expect("must set");
     assert_eq!(vec![ 0, 0, 5, 5 ], matrix.getEnclosingRectangle().unwrap());
   }
 
@@ -85,13 +85,13 @@ use super::BitMatrix;
     let mut  matrix =  BitMatrix::with_single_dimension(5);
     assert!(matrix.getTopLeftOnBit().is_none());
     assert!(matrix.getBottomRightOnBit().is_none());
-    matrix.setRegion(1, 1, 1, 1);
+    matrix.setRegion(1, 1, 1, 1).expect("must set");
     assert_eq!(vec![ 1, 1 ], matrix.getTopLeftOnBit().unwrap());
     assert_eq!(vec![ 1, 1 ], matrix.getBottomRightOnBit().unwrap());
-    matrix.setRegion(1, 1, 3, 2);
+    matrix.setRegion(1, 1, 3, 2).expect("must set");
     assert_eq!(vec![ 1, 1 ], matrix.getTopLeftOnBit().unwrap());
     assert_eq!(vec![ 3, 2 ], matrix.getBottomRightOnBit().unwrap());
-    matrix.setRegion(0, 0, 5, 5);
+    matrix.setRegion(0, 0, 5, 5).expect("must set");
     assert_eq!(vec![ 0, 0 ], matrix.getTopLeftOnBit().unwrap());
     assert_eq!(vec![ 4, 4 ], matrix.getBottomRightOnBit().unwrap());
   }
@@ -128,7 +128,7 @@ use super::BitMatrix;
     let mut  matrix =  BitMatrix::new(320, 240).unwrap();
     assert_eq!(320, matrix.getWidth());
     assert_eq!(240, matrix.getHeight());
-    matrix.setRegion(105, 22, 80, 12);
+    matrix.setRegion(105, 22, 80, 12).expect("must set");
 
     // Only bits in the region should be on
     for y in 0..240 {
@@ -217,9 +217,9 @@ use super::BitMatrix;
   fn test_parse() {
     let emptyMatrix =  BitMatrix::new(3, 3).unwrap();
     let mut  fullMatrix =  BitMatrix::new(3, 3).unwrap();
-    fullMatrix.setRegion(0, 0, 3, 3);
+    fullMatrix.setRegion(0, 0, 3, 3).expect("must set");
     let mut  centerMatrix =  BitMatrix::new(3, 3).unwrap();
-    centerMatrix.setRegion(1, 1, 1, 1);
+    centerMatrix.setRegion(1, 1, 1, 1).expect("must set");
     let emptyMatrix24 =  BitMatrix::new(2, 4).unwrap();
 
     assert_eq!(emptyMatrix, BitMatrix::parse_strings("   \n   \n   \n", "x", " ").unwrap());
@@ -243,9 +243,9 @@ use super::BitMatrix;
   fn test_parse_boolean() {
     let emptyMatrix =  BitMatrix::new(3, 3).unwrap();
     let  mut fullMatrix =  BitMatrix::new(3, 3).unwrap();
-    fullMatrix.setRegion(0, 0, 3, 3);
+    fullMatrix.setRegion(0, 0, 3, 3).expect("must set");
     let  mut centerMatrix =  BitMatrix::new(3, 3).unwrap();
-    centerMatrix.setRegion(1, 1, 1, 1);
+    centerMatrix.setRegion(1, 1, 1, 1).expect("must set");
     let emptyMatrix24 =  BitMatrix::new(2, 4).unwrap();
 
     let  mut matrix = vec![vec![false;3];3];
@@ -276,9 +276,9 @@ use super::BitMatrix;
   fn test_xor_case() {
     let emptyMatrix =  BitMatrix::new(3, 3).unwrap();
     let mut  fullMatrix =  BitMatrix::new(3, 3).unwrap();
-    fullMatrix.setRegion(0, 0, 3, 3);
+    fullMatrix.setRegion(0, 0, 3, 3).expect("must set");
     let mut  centerMatrix =  BitMatrix::new(3, 3).unwrap();
-    centerMatrix.setRegion(1, 1, 1, 1);
+    centerMatrix.setRegion(1, 1, 1, 1).expect("must set");
     let mut  invertedCenterMatrix = fullMatrix.clone();
     invertedCenterMatrix.unset(1, 1);
     let badMatrix =  BitMatrix::new(4, 4).unwrap();
@@ -328,7 +328,7 @@ use super::BitMatrix;
 
   fn test_XOR( dataMatrix: &BitMatrix,  flipMatrix: &BitMatrix,  expectedMatrix: &BitMatrix) {
     let mut matrix = dataMatrix.clone();
-    matrix.xor(flipMatrix);
+    matrix.xor(flipMatrix).expect("must set");
     assert_eq!(*expectedMatrix, matrix);
   }
 

src/common/detector/MathUtils.rs

@@ -76,7 +76,7 @@ pub fn sum(array: &[i32]) -> i32 {
 mod tests {
     use crate::common::detector::MathUtils;
 
-    static EPSILON: f32 = 1.0E-8f32;
+    // static EPSILON: f32 = 1.0E-8f32;
 
     #[test]
     fn testRound() {

src/common/detector/mod.rs

@@ -1,6 +1,4 @@
 pub mod MathUtils;
-use crate::common::BitMatrix;
-use crate::{Exceptions, RXingResultPoint, ResultPoint};
 
 mod monochrome_rectangle_detector;
 pub use monochrome_rectangle_detector::*;

src/common/detector/monochrome_rectangle_detector.rs

@@ -245,7 +245,7 @@ impl MonochromeRectangleDetector {
 
         // Scan left/up first
         let mut start = center;
-        while (start >= minDim) {
+        while start >= minDim {
             if if horizontal {
                 self.image.get(start as u32, fixedDimension as u32)
             } else {
@@ -275,7 +275,7 @@ impl MonochromeRectangleDetector {
 
         // Then try right/down
         let mut end = center;
-        while (end < maxDim) {
+        while end < maxDim {
             if if horizontal {
                 self.image.get(end as u32, fixedDimension as u32)
             } else {

src/common/eci_encoder_set.rs

@@ -171,7 +171,7 @@ impl ECIEncoderSet {
             // In this case we append a UTF-8 and UTF-16 encoder to the list
             //   encoders = [] new CharsetEncoder[neededEncoders.size() + 2];
             encoders = Vec::new();
-            let index = 0;
+            // let index = 0;
 
             for encoder in neededEncoders {
                 //   for (CharsetEncoder encoder : neededEncoders) {

src/common/eci_string_builder.rs

@@ -81,7 +81,7 @@ impl ECIStringBuilder {
      * @param value string to append
      */
     pub fn append_string(&mut self, value: &str) {
-        value.as_bytes().iter().map(|b| self.current_bytes.push(*b));
+        value.as_bytes().iter().map(|b| self.current_bytes.push(*b)).count();
         // self.current_bytes.push(value.as_bytes());
     }
 

src/common/global_histogram_binarizer.rs

@@ -158,7 +158,7 @@ impl GlobalHistogramBinarizer {
     const LUMINANCE_BITS: usize = 5;
     const LUMINANCE_SHIFT: usize = 8 - GlobalHistogramBinarizer::LUMINANCE_BITS;
     const LUMINANCE_BUCKETS: usize = 1 << GlobalHistogramBinarizer::LUMINANCE_BITS;
-    const EMPTY: [u8; 0] = [0; 0];
+    // const EMPTY: [u8; 0] = [0; 0];
 
     pub fn new(source: Box<dyn LuminanceSource>) -> Self {
         Self {

src/common/grid_sampler.rs

@@ -160,7 +160,7 @@ pub trait GridSampler {
             if y == -1 {
                 points[offset + 1] = 0.0f32;
                 nudged = true;
-            } else if (y == height.try_into().unwrap()) {
+            } else if y == height.try_into().unwrap() {
                 points[offset + 1] = height as f32 - 1f32;
                 nudged = true;
             }

src/common/mod.rs

@@ -1,26 +1,7 @@
 pub mod detector;
 pub mod reedsolomon;
 
-use core::num;
-use std::any::Any;
-use std::cmp;
-use std::collections::HashMap;
-use std::fmt;
-use std::rc::Rc;
-
-use crate::Binarizer;
-use crate::DecodeHintType;
-use crate::DecodeHintValue;
-use crate::DecodingHintDictionary;
-use crate::Exceptions;
-use crate::LuminanceSource;
 use crate::RXingResultPoint;
-use encoding::Encoding;
-use encoding::EncodingRef;
-
-use lazy_static::lazy_static;
-
-use unicode_segmentation::UnicodeSegmentation;
 
 #[cfg(test)]
 mod StringUtilsTestCase;
@@ -118,9 +99,6 @@ pub use eci_encoder_set::*;
 mod minimal_eci_input;
 pub use minimal_eci_input::*;
 
-mod input_edge;
-pub use input_edge::*;
-
 
 mod global_histogram_binarizer;
 pub use global_histogram_binarizer::*;

src/common/reedsolomon/GenericGFPolyTestCase.rs

@@ -19,8 +19,6 @@
 //import org.junit.Assert;
 //import org.junit.Test;
 
-use std::rc::Rc;
-
 use super::{GenericGF, GenericGFPoly};
 
 /**

src/common/reedsolomon/ReedSolomonTestCase.rs

@@ -1,6 +1,6 @@
 use rand::Rng;
 
-use super::{GenericGF, GenericGFRef, ReedSolomonDecoder, ReedSolomonEncoder};
+use super::{GenericGFRef, ReedSolomonDecoder, ReedSolomonEncoder};
 /*
  * Copyrigh&t 2013 ZXing authors
  *

src/common/reedsolomon/mod.rs

@@ -1,8 +1,3 @@
-use std::fmt;
-
-use crate::Exceptions;
-use std::hash::Hash;
-
 #[cfg(test)]
 mod GenericGFPolyTestCase;
 #[cfg(test)]

src/common/string_utils.rs

@@ -53,8 +53,8 @@ pub struct StringUtils {
 //     encoding::label::encoding_from_whatwg_label("GB2312").unwrap();
 // const EUC_JP: &dyn Encoding = encoding::label::encoding_from_whatwg_label("EUC_JP").unwrap();
 const ASSUME_SHIFT_JIS: bool = false;
-static SHIFT_JIS: &'static str = "SJIS";
+// static SHIFT_JIS: &'static str = "SJIS";
-static GB2312: &'static str = "GB2312";
+// static GB2312: &'static str = "GB2312";
 lazy_static! {
     pub static ref SHIFT_JIS_CHARSET: EncodingRef =
         encoding::label::encoding_from_whatwg_label("SJIS").unwrap();

src/decode_hints.rs

@@ -0,0 +1,204 @@
+
+/*
+ * 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;
+
+use crate::{BarcodeFormat, RXingResultPointCallback};
+
+/**
+ * Encapsulates a type of hint that a caller may pass to a barcode reader to help it
+ * more quickly or accurately decode it. It is up to implementations to decide what,
+ * if anything, to do with the information that is supplied.
+ *
+ * @author Sean Owen
+ * @author dswitkin@google.com (Daniel Switkin)
+ * @see Reader#decode(BinaryBitmap,java.util.Map)
+ */
+#[derive(Eq, PartialEq, Hash, Debug, Clone, Copy)]
+pub enum DecodeHintType {
+    /**
+     * Unspecified, application-specific hint. Maps to an unspecified {@link Object}.
+     */
+    OTHER,
+
+    /**
+     * Image is a pure monochrome image of a barcode. Doesn't matter what it maps to;
+     * use {@link Boolean#TRUE}.
+     */
+    PURE_BARCODE,
+
+    /**
+     * Image is known to be of one of a few possible formats.
+     * Maps to a {@link List} of {@link BarcodeFormat}s.
+     */
+    POSSIBLE_FORMATS,
+
+    /**
+     * Spend more time to try to find a barcode; optimize for accuracy, not speed.
+     * Doesn't matter what it maps to; use {@link Boolean#TRUE}.
+     */
+    TRY_HARDER,
+
+    /**
+     * Specifies what character encoding to use when decoding, where applicable (type String)
+     */
+    CHARACTER_SET,
+
+    /**
+     * Allowed lengths of encoded data -- reject anything else. Maps to an {@code int[]}.
+     */
+    ALLOWED_LENGTHS,
+
+    /**
+     * Assume Code 39 codes employ a check digit. Doesn't matter what it maps to;
+     * use {@link Boolean#TRUE}.
+     */
+    ASSUME_CODE_39_CHECK_DIGIT,
+
+    /**
+     * Assume the barcode is being processed as a GS1 barcode, and modify behavior as needed.
+     * For example this affects FNC1 handling for Code 128 (aka GS1-128). Doesn't matter what it maps to;
+     * use {@link Boolean#TRUE}.
+     */
+    ASSUME_GS1,
+
+    /**
+     * If true, return the start and end digits in a Codabar barcode instead of stripping them. They
+     * are alpha, whereas the rest are numeric. By default, they are stripped, but this causes them
+     * to not be. Doesn't matter what it maps to; use {@link Boolean#TRUE}.
+     */
+    RETURN_CODABAR_START_END,
+
+    /**
+     * The caller needs to be notified via callback when a possible {@link RXingResultPoint}
+     * is found. Maps to a {@link RXingResultPointCallback}.
+     */
+    NEED_RESULT_POINT_CALLBACK,
+
+    /**
+     * Allowed extension lengths for EAN or UPC barcodes. Other formats will ignore this.
+     * Maps to an {@code int[]} of the allowed extension lengths, for example [2], [5], or [2, 5].
+     * If it is optional to have an extension, do not set this hint. If this is set,
+     * and a UPC or EAN barcode is found but an extension is not, then no result will be returned
+     * at all.
+     */
+    ALLOWED_EAN_EXTENSIONS,
+
+    /**
+     * If true, also tries to decode as inverted image. All configured decoders are simply called a
+     * second time with an inverted image. Doesn't matter what it maps to; use {@link Boolean#TRUE}.
+     */
+    ALSO_INVERTED,
+    // End of enumeration values.
+
+    /*
+     * Data type the hint is expecting.
+     * Among the possible values the {@link Void} stands out as being used for
+     * hints that do not expect a value to be supplied (flag hints). Such hints
+     * will possibly have their value ignored, or replaced by a
+     * {@link Boolean#TRUE}. Hint suppliers should probably use
+     * {@link Boolean#TRUE} as directed by the actual hint documentation.
+     */
+    /*
+    private final Class<?> valueType;
+
+    DecodeHintType(Class<?> valueType) {
+      this.valueType = valueType;
+    }
+
+    public Class<?> getValueType() {
+      return valueType;
+    }*/
+}
+
+#[derive(Clone)]
+pub enum DecodeHintValue {
+    /**
+     * Unspecified, application-specific hint. Maps to an unspecified {@link Object}.
+     */
+    Other(String),
+
+    /**
+     * Image is a pure monochrome image of a barcode. Doesn't matter what it maps to;
+     * use {@link Boolean#TRUE}.
+     */
+    PureBarcode(bool),
+
+    /**
+     * Image is known to be of one of a few possible formats.
+     * Maps to a {@link List} of {@link BarcodeFormat}s.
+     */
+    PossibleFormats(BarcodeFormat),
+
+    /**
+     * Spend more time to try to find a barcode; optimize for accuracy, not speed.
+     * Doesn't matter what it maps to; use {@link Boolean#TRUE}.
+     */
+    TryHarder(bool),
+
+    /**
+     * Specifies what character encoding to use when decoding, where applicable (type String)
+     */
+    CharacterSet(String),
+
+    /**
+     * Allowed lengths of encoded data -- reject anything else. Maps to an {@code int[]}.
+     */
+    AllowedLengths(Vec<u32>),
+
+    /**
+     * Assume Code 39 codes employ a check digit. Doesn't matter what it maps to;
+     * use {@link Boolean#TRUE}.
+     */
+    AssumeCode39CheckDigit(bool),
+
+    /**
+     * Assume the barcode is being processed as a GS1 barcode, and modify behavior as needed.
+     * For example this affects FNC1 handling for Code 128 (aka GS1-128). Doesn't matter what it maps to;
+     * use {@link Boolean#TRUE}.
+     */
+    AssumeGs1(bool),
+
+    /**
+     * If true, return the start and end digits in a Codabar barcode instead of stripping them. They
+     * are alpha, whereas the rest are numeric. By default, they are stripped, but this causes them
+     * to not be. Doesn't matter what it maps to; use {@link Boolean#TRUE}.
+     */
+    ReturnCodabarStartEnd(bool),
+
+    /**
+     * The caller needs to be notified via callback when a possible {@link RXingResultPoint}
+     * is found. Maps to a {@link RXingResultPointCallback}.
+     */
+    NeedResultPointCallback(RXingResultPointCallback),
+
+    /**
+     * Allowed extension lengths for EAN or UPC barcodes. Other formats will ignore this.
+     * Maps to an {@code int[]} of the allowed extension lengths, for example [2], [5], or [2, 5].
+     * If it is optional to have an extension, do not set this hint. If this is set,
+     * and a UPC or EAN barcode is found but an extension is not, then no result will be returned
+     * at all.
+     */
+    AllowedEanExtensions(Vec<u32>),
+
+    /**
+     * If true, also tries to decode as inverted image. All configured decoders are simply called a
+     * second time with an inverted image. Doesn't matter what it maps to; use {@link Boolean#TRUE}.
+     */
+    AlsoInverted(bool),
+    // End of enumeration values.
+}

src/dimension.rs

@@ -0,0 +1,48 @@
+
+/*
+ * Copyright 2012 ZXing authors
+ *
+ * Licensed under the Apache Licens0rsion 2.0 (the "License");
+ * you may not use this file except in1iance 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 std::fmt;
+
+use crate::Exceptions;
+
+/**
+ * Simply encapsulates a width and height.
+ */
+#[derive(Eq, PartialEq, Hash)]
+pub struct Dimension(usize, usize);
+
+impl Dimension {
+    pub fn new(width: usize, height: usize) -> Result<Self, Exceptions> {
+        Ok(Self(width, height))
+    }
+
+    pub fn getWidth(&self) -> usize {
+        return self.0;
+    }
+
+    pub fn getHeight(&self) -> usize {
+        return self.1;
+    }
+}
+
+impl fmt::Display for Dimension {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        write!(f, "{}x{}", self.0, self.1)
+    }
+}

src/encode_hints.rs

@@ -0,0 +1,330 @@
+
+/*
+ * 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::Dimension;
+
+/**
+ * These are a set of hints that you may pass to Writers to specify their behavior.
+ *
+ * @author dswitkin@google.com (Daniel Switkin)
+ */
+#[derive(Debug, PartialEq, Eq, Hash, Clone, Copy)]
+pub enum EncodeHintType {
+    /**
+     * Specifies what degree of error correction to use, for example in QR Codes.
+     * Type depends on the encoder. For example for QR codes it's type
+     * {@link com.google.zxing.qrcode.decoder.ErrorCorrectionLevel ErrorCorrectionLevel}.
+     * For Aztec it is of type {@link Integer}, representing the minimal percentage of error correction words.
+     * For PDF417 it is of type {@link Integer}, valid values being 0 to 8.
+     * In all cases, it can also be a {@link String} representation of the desired value as well.
+     * Note: an Aztec symbol should have a minimum of 25% EC words.
+     */
+    ERROR_CORRECTION,
+
+    /**
+     * Specifies what character encoding to use where applicable (type {@link String})
+     */
+    CHARACTER_SET,
+
+    /**
+     * Specifies the matrix shape for Data Matrix (type {@link com.google.zxing.datamatrix.encoder.SymbolShapeHint})
+     */
+    DATA_MATRIX_SHAPE,
+
+    /**
+     * Specifies whether to use compact mode for Data Matrix (type {@link Boolean}, or "true" or "false"
+     * {@link String } value).
+     * The compact encoding mode also supports the encoding of characters that are not in the ISO-8859-1
+     * character set via ECIs.
+     * Please note that in that case, the most compact character encoding is chosen for characters in
+     * the input that are not in the ISO-8859-1 character set. Based on experience, some scanners do not
+     * support encodings like cp-1256 (Arabic). In such cases the encoding can be forced to UTF-8 by
+     * means of the {@link #CHARACTER_SET} encoding hint.
+     * Compact encoding also provides GS1-FNC1 support when {@link #GS1_FORMAT} is selected. In this case
+     * group-separator character (ASCII 29 decimal) can be used to encode the positions of FNC1 codewords
+     * for the purpose of delimiting AIs.
+     * This option and {@link #FORCE_C40} are mutually exclusive.
+     */
+    DATA_MATRIX_COMPACT,
+
+    /**
+     * Specifies a minimum barcode size (type {@link Dimension}). Only applicable to Data Matrix now.
+     *
+     * @deprecated use width/height params in
+     * {@link com.google.zxing.datamatrix.DataMatrixWriter#encode(String, BarcodeFormat, int, int)}
+     */
+    #[deprecated]
+    MIN_SIZE,
+
+    /**
+     * Specifies a maximum barcode size (type {@link Dimension}). Only applicable to Data Matrix now.
+     *
+     * @deprecated without replacement
+     */
+    #[deprecated]
+    MAX_SIZE,
+
+    /**
+     * Specifies margin, in pixels, to use when generating the barcode. The meaning can vary
+     * by format; for example it controls margin before and after the barcode horizontally for
+     * most 1D formats. (Type {@link Integer}, or {@link String} representation of the integer value).
+     */
+    MARGIN,
+
+    /**
+     * Specifies whether to use compact mode for PDF417 (type {@link Boolean}, or "true" or "false"
+     * {@link String} value).
+     */
+    PDF417_COMPACT,
+
+    /**
+     * Specifies what compaction mode to use for PDF417 (type
+     * {@link com.google.zxing.pdf417.encoder.Compaction Compaction} or {@link String} value of one of its
+     * enum values).
+     */
+    PDF417_COMPACTION,
+
+    /**
+     * Specifies the minimum and maximum number of rows and columns for PDF417 (type
+     * {@link com.google.zxing.pdf417.encoder.Dimensions Dimensions}).
+     */
+    PDF417_DIMENSIONS,
+
+    /**
+     * Specifies whether to automatically insert ECIs when encoding PDF417 (type {@link Boolean}, or "true" or "false"
+     * {@link String} value).
+     * Please note that in that case, the most compact character encoding is chosen for characters in
+     * the input that are not in the ISO-8859-1 character set. Based on experience, some scanners do not
+     * support encodings like cp-1256 (Arabic). In such cases the encoding can be forced to UTF-8 by
+     * means of the {@link #CHARACTER_SET} encoding hint.
+     */
+    PDF417_AUTO_ECI,
+
+    /**
+     * Specifies the required number of layers for an Aztec code.
+     * A negative number (-1, -2, -3, -4) specifies a compact Aztec code.
+     * 0 indicates to use the minimum number of layers (the default).
+     * A positive number (1, 2, .. 32) specifies a normal (non-compact) Aztec code.
+     * (Type {@link Integer}, or {@link String} representation of the integer value).
+     */
+    AZTEC_LAYERS,
+
+    /**
+     * Specifies the exact version of QR code to be encoded.
+     * (Type {@link Integer}, or {@link String} representation of the integer value).
+     */
+    QR_VERSION,
+
+    /**
+     * Specifies the QR code mask pattern to be used. Allowed values are
+     * 0..QRCode.NUM_MASK_PATTERNS-1. By default the code will automatically select
+     * the optimal mask pattern.
+     * * (Type {@link Integer}, or {@link String} representation of the integer value).
+     */
+    QR_MASK_PATTERN,
+
+    /**
+     * Specifies whether to use compact mode for QR code (type {@link Boolean}, or "true" or "false"
+     * {@link String } value).
+     * Please note that when compaction is performed, the most compact character encoding is chosen
+     * for characters in the input that are not in the ISO-8859-1 character set. Based on experience,
+     * some scanners do not support encodings like cp-1256 (Arabic). In such cases the encoding can
+     * be forced to UTF-8 by means of the {@link #CHARACTER_SET} encoding hint.
+     */
+    QR_COMPACT,
+
+    /**
+     * Specifies whether the data should be encoded to the GS1 standard (type {@link Boolean}, or "true" or "false"
+     * {@link String } value).
+     */
+    GS1_FORMAT,
+
+    /**
+     * Forces which encoding will be used. Currently only used for Code-128 code sets (Type {@link String}).
+     * Valid values are "A", "B", "C".
+     * This option and {@link #CODE128_COMPACT} are mutually exclusive.
+     */
+    FORCE_CODE_SET,
+
+    /**
+     * Forces C40 encoding for data-matrix (type {@link Boolean}, or "true" or "false") {@link String } value). This
+     * option and {@link #DATA_MATRIX_COMPACT} are mutually exclusive.
+     */
+    FORCE_C40,
+
+    /**
+     * Specifies whether to use compact mode for Code-128 code (type {@link Boolean}, or "true" or "false"
+     * {@link String } value).
+     * This can yield slightly smaller bar codes. This option and {@link #FORCE_CODE_SET} are mutually
+     * exclusive.
+     */
+    CODE128_COMPACT,
+}
+
+pub enum EncodeHintValue {
+    /**
+     * Specifies what degree of error correction to use, for example in QR Codes.
+     * Type depends on the encoder. For example for QR codes it's type
+     * {@link com.google.zxing.qrcode.decoder.ErrorCorrectionLevel ErrorCorrectionLevel}.
+     * For Aztec it is of type {@link Integer}, representing the minimal percentage of error correction words.
+     * For PDF417 it is of type {@link Integer}, valid values being 0 to 8.
+     * In all cases, it can also be a {@link String} representation of the desired value as well.
+     * Note: an Aztec symbol should have a minimum of 25% EC words.
+     */
+    ErrorCorrection(String),
+
+    /**
+     * Specifies what character encoding to use where applicable (type {@link String})
+     */
+    CharacterSet(String),
+
+    /**
+     * Specifies the matrix shape for Data Matrix (type {@link com.google.zxing.datamatrix.encoder.SymbolShapeHint})
+     */
+    DataMatrixShape,
+
+    /**
+     * Specifies whether to use compact mode for Data Matrix (type {@link Boolean}, or "true" or "false"
+     * {@link String } value).
+     * The compact encoding mode also supports the encoding of characters that are not in the ISO-8859-1
+     * character set via ECIs.
+     * Please note that in that case, the most compact character encoding is chosen for characters in
+     * the input that are not in the ISO-8859-1 character set. Based on experience, some scanners do not
+     * support encodings like cp-1256 (Arabic). In such cases the encoding can be forced to UTF-8 by
+     * means of the {@link #CHARACTER_SET} encoding hint.
+     * Compact encoding also provides GS1-FNC1 support when {@link #GS1_FORMAT} is selected. In this case
+     * group-separator character (ASCII 29 decimal) can be used to encode the positions of FNC1 codewords
+     * for the purpose of delimiting AIs.
+     * This option and {@link #FORCE_C40} are mutually exclusive.
+     */
+    DataMatrixCompact(String),
+
+    /**
+     * Specifies a minimum barcode size (type {@link Dimension}). Only applicable to Data Matrix now.
+     *
+     * @deprecated use width/height params in
+     * {@link com.google.zxing.datamatrix.DataMatrixWriter#encode(String, BarcodeFormat, int, int)}
+     */
+    #[deprecated]
+    MinSize,
+
+    /**
+     * Specifies a maximum barcode size (type {@link Dimension}). Only applicable to Data Matrix now.
+     *
+     * @deprecated without replacement
+     */
+    #[deprecated]
+    MaxSize(Dimension),
+
+    /**
+     * Specifies margin, in pixels, to use when generating the barcode. The meaning can vary
+     * by format; for example it controls margin before and after the barcode horizontally for
+     * most 1D formats. (Type {@link Integer}, or {@link String} representation of the integer value).
+     */
+    Margin(String),
+
+    /**
+     * Specifies whether to use compact mode for PDF417 (type {@link Boolean}, or "true" or "false"
+     * {@link String} value).
+     */
+    Pdf417Compact(String),
+
+    /**
+     * Specifies what compaction mode to use for PDF417 (type
+     * {@link com.google.zxing.pdf417.encoder.Compaction Compaction} or {@link String} value of one of its
+     * enum values).
+     */
+    Pdf417Compaction(String),
+
+    /**
+     * Specifies the minimum and maximum number of rows and columns for PDF417 (type
+     * {@link com.google.zxing.pdf417.encoder.Dimensions Dimensions}).
+     */
+    Pdf417Dimensions,
+
+    /**
+     * Specifies whether to automatically insert ECIs when encoding PDF417 (type {@link Boolean}, or "true" or "false"
+     * {@link String} value).
+     * Please note that in that case, the most compact character encoding is chosen for characters in
+     * the input that are not in the ISO-8859-1 character set. Based on experience, some scanners do not
+     * support encodings like cp-1256 (Arabic). In such cases the encoding can be forced to UTF-8 by
+     * means of the {@link #CHARACTER_SET} encoding hint.
+     */
+    Pdf417AutoEci(String),
+
+    /**
+     * Specifies the required number of layers for an Aztec code.
+     * A negative number (-1, -2, -3, -4) specifies a compact Aztec code.
+     * 0 indicates to use the minimum number of layers (the default).
+     * A positive number (1, 2, .. 32) specifies a normal (non-compact) Aztec code.
+     * (Type {@link Integer}, or {@link String} representation of the integer value).
+     */
+    AztecLayers(i32),
+
+    /**
+     * Specifies the exact version of QR code to be encoded.
+     * (Type {@link Integer}, or {@link String} representation of the integer value).
+     */
+    QrVersion(String),
+
+    /**
+     * Specifies the QR code mask pattern to be used. Allowed values are
+     * 0..QRCode.NUM_MASK_PATTERNS-1. By default the code will automatically select
+     * the optimal mask pattern.
+     * * (Type {@link Integer}, or {@link String} representation of the integer value).
+     */
+    QrMaskPattern(String),
+
+    /**
+     * Specifies whether to use compact mode for QR code (type {@link Boolean}, or "true" or "false"
+     * {@link String } value).
+     * Please note that when compaction is performed, the most compact character encoding is chosen
+     * for characters in the input that are not in the ISO-8859-1 character set. Based on experience,
+     * some scanners do not support encodings like cp-1256 (Arabic). In such cases the encoding can
+     * be forced to UTF-8 by means of the {@link #CHARACTER_SET} encoding hint.
+     */
+    QrCompact(String),
+
+    /**
+     * Specifies whether the data should be encoded to the GS1 standard (type {@link Boolean}, or "true" or "false"
+     * {@link String } value).
+     */
+    Gs1Format(String),
+
+    /**
+     * Forces which encoding will be used. Currently only used for Code-128 code sets (Type {@link String}).
+     * Valid values are "A", "B", "C".
+     * This option and {@link #CODE128_COMPACT} are mutually exclusive.
+     */
+    ForceCodeSet(String),
+
+    /**
+     * Forces C40 encoding for data-matrix (type {@link Boolean}, or "true" or "false") {@link String } value). This
+     * option and {@link #DATA_MATRIX_COMPACT} are mutually exclusive.
+     */
+    ForceC40(String),
+
+    /**
+     * Specifies whether to use compact mode for Code-128 code (type {@link Boolean}, or "true" or "false"
+     * {@link String } value).
+     * This can yield slightly smaller bar codes. This option and {@link #FORCE_CODE_SET} are mutually
+     * exclusive.
+     */
+    Code128Compact(String),
+}

src/luminance_source.rs

@@ -0,0 +1,173 @@
+
+/*
+ * 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;
+
+use crate::Exceptions;
+
+/**
+ * The purpose of this class hierarchy is to abstract different bitmap implementations across
+ * platforms into a standard interface for requesting greyscale luminance values. The interface
+ * only provides immutable methods; therefore crop and rotation create copies. This is to ensure
+ * that one Reader does not modify the original luminance source and leave it in an unknown state
+ * for other Readers in the chain.
+ *
+ * @author dswitkin@google.com (Daniel Switkin)
+ */
+pub trait LuminanceSource {
+    //private final int width;
+    //private final int height;
+
+    //fn new( width:usize,  height:usize) -> Self;
+
+    /**
+     * Fetches one row of luminance data from the underlying platform's bitmap. Values range from
+     * 0 (black) to 255 (white). Because Java does not have an unsigned byte type, callers will have
+     * to bitwise and with 0xff for each value. It is preferable for implementations of this method
+     * to only fetch this row rather than the whole image, since no 2D Readers may be installed and
+     * getMatrix() may never be called.
+     *
+     * @param y The row to fetch, which must be in [0,getHeight())
+     * @param row An optional preallocated array. If null or too small, it will be ignored.
+     *            Always use the returned object, and ignore the .length of the array.
+     * @return An array containing the luminance data.
+     */
+    fn getRow(&self, y: usize, row: &Vec<u8>) -> Vec<u8>;
+
+    /**
+     * Fetches luminance data for the underlying bitmap. Values should be fetched using:
+     * {@code int luminance = array[y * width + x] & 0xff}
+     *
+     * @return A row-major 2D array of luminance values. Do not use result.length as it may be
+     *         larger than width * height bytes on some platforms. Do not modify the contents
+     *         of the result.
+     */
+    fn getMatrix(&self) -> Vec<u8>;
+
+    /**
+     * @return The width of the bitmap.
+     */
+    fn getWidth(&self) -> usize;
+
+    /**
+     * @return The height of the bitmap.
+     */
+    fn getHeight(&self) -> usize;
+
+    /**
+     * @return Whether this subclass supports cropping.
+     */
+    fn isCropSupported(&self) -> bool {
+        return false;
+    }
+
+    /**
+     * Returns a new object with cropped image data. Implementations may keep a reference to the
+     * original data rather than a copy. Only callable if isCropSupported() is true.
+     *
+     * @param left The left coordinate, which must be in [0,getWidth())
+     * @param top The top coordinate, which must be in [0,getHeight())
+     * @param width The width of the rectangle to crop.
+     * @param height The height of the rectangle to crop.
+     * @return A cropped version of this object.
+     */
+    fn crop(
+        &self,
+        left: usize,
+        top: usize,
+        width: usize,
+        height: usize,
+    ) -> Result<Box<dyn LuminanceSource>, Exceptions> {
+        return Err(Exceptions::UnsupportedOperationException(
+            "This luminance source does not support cropping.".to_owned(),
+        ));
+    }
+
+    /**
+     * @return Whether this subclass supports counter-clockwise rotation.
+     */
+    fn isRotateSupported(&self) -> bool {
+        return false;
+    }
+
+    /**
+     * @return a wrapper of this {@code LuminanceSource} which inverts the luminances it returns -- black becomes
+     *  white and vice versa, and each value becomes (255-value).
+     */
+    fn invert(&mut self); /* {
+                            return InvertedLuminanceSource::new_with_delegate(self);
+                          }*/
+
+    /**
+     * Returns a new object with rotated image data by 90 degrees counterclockwise.
+     * Only callable if {@link #isRotateSupported()} is true.
+     *
+     * @return A rotated version of this object.
+     */
+    fn rotateCounterClockwise(&self) -> Result<Box<dyn LuminanceSource>, Exceptions> {
+        return Err(Exceptions::UnsupportedOperationException(
+            "This luminance source does not support rotation by 90 degrees.".to_owned(),
+        ));
+    }
+
+    /**
+     * Returns a new object with rotated image data by 45 degrees counterclockwise.
+     * Only callable if {@link #isRotateSupported()} is true.
+     *
+     * @return A rotated version of this object.
+     */
+    fn rotateCounterClockwise45(&self) -> Result<Box<dyn LuminanceSource>, Exceptions> {
+        return Err(Exceptions::UnsupportedOperationException(
+            "This luminance source does not support rotation by 45 degrees.".to_owned(),
+        ));
+    }
+
+    fn invert_block_of_bytes(&self, vec_to_invert: Vec<u8>) -> Vec<u8> {
+        let mut iv = vec_to_invert.clone();
+        for itm in iv.iter_mut() {
+            let z = *itm;
+            *itm = 255 - (z & 0xFF);
+        }
+        iv
+    }
+
+    /*
+    @Override
+    public final String toString() {
+      byte[] row = new byte[width];
+      StringBuilder result = new StringBuilder(height * (width + 1));
+      for (int y = 0; y < height; y++) {
+        row = getRow(y, row);
+        for (int x = 0; x < width; x++) {
+          int luminance = row[x] & 0xFF;
+          char c;
+          if (luminance < 0x40) {
+            c = '#';
+          } else if (luminance < 0x80) {
+            c = '+';
+          } else if (luminance < 0xC0) {
+            c = '.';
+          } else {
+            c = ' ';
+          }
+          result.append(c);
+        }
+        result.append('\n');
+      }
+      return result.toString();
+    }*/
+}

src/maxicode/decoder/decoder.rs

@@ -40,7 +40,7 @@ const EVEN: u32 = 1;
 const ODD: u32 = 2;
 
 lazy_static! {
-    static ref rsDecoder: ReedSolomonDecoder = ReedSolomonDecoder::new(get_predefined_genericgf(
+    static ref RS_DECODER: ReedSolomonDecoder = ReedSolomonDecoder::new(get_predefined_genericgf(
         PredefinedGenericGF::MaxicodeField64
     ));
 }
@@ -103,7 +103,7 @@ fn correctErrors(
         }
     }
     // try {
-    rsDecoder.decode(&mut codewordsInts, (ecCodewords / divisor) as i32)?;
+    RS_DECODER.decode(&mut codewordsInts, (ecCodewords / divisor) as i32)?;
     // } catch (ReedSolomonException ignored) {
     //   throw ChecksumException.getChecksumInstance();
     // }

src/planar_yuv_luminance_source.rs

@@ -0,0 +1,364 @@
+
+// /*
+//  * Copyright 2013 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;
+
+// /**
+//  * A wrapper implementation of {@link LuminanceSource} which inverts the luminances it returns -- black becomes
+//  * white and vice versa, and each value becomes (255-value).
+//  *
+//  * @author Sean Owen
+//  */
+// pub struct InvertedLuminanceSource {
+//     width: usize,
+//     height: usize,
+//     delegate: Box<dyn LuminanceSource>,
+// }
+
+// impl InvertedLuminanceSource {
+//     pub fn new_with_delegate(delegate: Box<dyn LuminanceSource>) -> Self {
+//         Self {
+//             width: delegate.getWidth(),
+//             height: delegate.getHeight(),
+//             delegate,
+//         }
+//     }
+// }
+
+// impl LuminanceSource for InvertedLuminanceSource {
+//     fn getRow(&self, y: usize, row: &Vec<u8>) -> Vec<u8> {
+//         let mut new_row = self.delegate.getRow(y, row);
+//         let width = self.getWidth();
+//         for i in 0..width {
+//             //for (int i = 0; i < width; i++) {
+//             new_row[i] = 255 - (new_row[i] & 0xFF);
+//         }
+//         return new_row;
+//     }
+
+//     fn getMatrix(&self) -> Vec<u8> {
+//         let matrix = self.delegate.getMatrix();
+//         let length = self.getWidth() * self.getHeight();
+//         let mut invertedMatrix = Vec::with_capacity(length);
+//         for i in 0..length {
+//             //for (int i = 0; i < length; i++) {
+//             invertedMatrix[i] = 255 - (matrix[i] & 0xFF);
+//         }
+//         return invertedMatrix;
+//     }
+
+//     fn getWidth(&self) -> usize {
+//         self.width
+//     }
+
+//     fn getHeight(&self) -> usize {
+//         self.height
+//     }
+
+//     fn isCropSupported(&self) -> bool {
+//         return self.delegate.isCropSupported();
+//     }
+
+//     fn crop(
+//         &self,
+//         left: usize,
+//         top: usize,
+//         width: usize,
+//         height: usize,
+//     ) -> Result<Box<dyn LuminanceSource>, UnsupportedOperationException> {
+//         let crop = self.delegate.crop(left, top, width, height)?;
+//         return Ok(Box::new(InvertedLuminanceSource::new_with_delegate(crop)));
+//     }
+
+//     fn isRotateSupported(&self) -> bool {
+//         return self.delegate.isRotateSupported();
+//     }
+
+//     /**
+//      * @return original delegate {@link LuminanceSource} since invert undoes itself
+//      */
+//     fn invert(&self) -> Box<dyn LuminanceSource> {
+//         return self.delegate;
+//     }
+
+//     fn rotateCounterClockwise(
+//         &self,
+//     ) -> Result<Box<dyn LuminanceSource>, UnsupportedOperationException> {
+//         let rot = self.delegate.rotateCounterClockwise()?;
+//         return Ok(Box::new(InvertedLuminanceSource::new_with_delegate(rot)));
+//     }
+
+//     fn rotateCounterClockwise45(
+//         &self,
+//     ) -> Result<Box<dyn LuminanceSource>, UnsupportedOperationException> {
+//         let rot_45 = self.delegate.rotateCounterClockwise45()?;
+//         return Ok(Box::new(InvertedLuminanceSource::new_with_delegate(rot_45)));
+//     }
+// }
+
+/*
+ * 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;
+
+use crate::{Exceptions, LuminanceSource};
+
+const THUMBNAIL_SCALE_FACTOR: usize = 2;
+
+/**
+ * This object extends LuminanceSource around an array of YUV data returned from the camera driver,
+ * with the option to crop to a rectangle within the full data. This can be used to exclude
+ * superfluous pixels around the perimeter and speed up decoding.
+ *
+ * It works for any pixel format where the Y channel is planar and appears first, including
+ * YCbCr_420_SP and YCbCr_422_SP.
+ *
+ * @author dswitkin@google.com (Daniel Switkin)
+ */
+#[derive(Debug, Clone)]
+pub struct PlanarYUVLuminanceSource {
+    yuv_data: Vec<u8>,
+    data_width: usize,
+    data_height: usize,
+    left: usize,
+    top: usize,
+    width: usize,
+    height: usize,
+    invert: bool,
+}
+
+impl PlanarYUVLuminanceSource {
+    pub fn new_with_all(
+        yuv_data: Vec<u8>,
+        data_width: usize,
+        data_height: usize,
+        left: usize,
+        top: usize,
+        width: usize,
+        height: usize,
+        reverse_horizontal: bool,
+        inverted: bool,
+    ) -> Result<Self, Exceptions> {
+        if left + width > data_width || top + height > data_height {
+            return Err(Exceptions::IllegalArgumentException(
+                "Crop rectangle does not fit within image data.".to_owned(),
+            ));
+        }
+
+        let mut new_s: Self = Self {
+            yuv_data,
+            data_width,
+            data_height,
+            left,
+            top,
+            width,
+            height,
+            invert: inverted,
+        };
+
+        if reverse_horizontal {
+            new_s.reverseHorizontal(width, height);
+        }
+
+        Ok(new_s)
+    }
+
+    pub fn renderThumbnail(&self) -> Vec<u8> {
+        let width = self.getWidth() / THUMBNAIL_SCALE_FACTOR;
+        let height = self.getHeight() / THUMBNAIL_SCALE_FACTOR;
+        let mut pixels = vec![0; width * height];
+        let yuv = &self.yuv_data;
+        let mut input_offset = self.top * self.data_width + self.left;
+
+        for y in 0..height {
+            //for (int y = 0; y < height; y++) {
+            let output_offset = y * width;
+            for x in 0..width {
+                //for (int x = 0; x < width; x++) {
+                let grey = yuv[input_offset + x * THUMBNAIL_SCALE_FACTOR] & 0xff;
+                pixels[output_offset + x] = (0xFF000000 | (grey as u32 * 0x00010101)) as u8;
+            }
+            input_offset += self.data_width * THUMBNAIL_SCALE_FACTOR;
+        }
+        return pixels;
+    }
+
+    /**
+     * @return width of image from {@link #renderThumbnail()}
+     */
+    pub fn getThumbnailWidth(&self) -> usize {
+        return self.getWidth() / THUMBNAIL_SCALE_FACTOR;
+    }
+
+    /**
+     * @return height of image from {@link #renderThumbnail()}
+     */
+    pub fn getThumbnailHeight(&self) -> usize {
+        return self.getHeight() / THUMBNAIL_SCALE_FACTOR;
+    }
+
+    fn reverseHorizontal(&mut self, width: usize, height: usize) {
+        //let mut yuvData = self.yuvData;
+        let mut rowStart = self.top * self.data_width + self.left;
+        for _y in 0..height {
+            let middle = rowStart + width / 2;
+            let mut x2 = rowStart + width - 1;
+            for x1 in rowStart..middle {
+                //for (int x1 = rowStart, x2 = rowStart + width - 1; x1 < middle; x1++, x2--) {
+                let temp = self.yuv_data[x1];
+                self.yuv_data[x1] = self.yuv_data[x2];
+                self.yuv_data[x2] = temp;
+                x2 -= 1;
+            }
+            rowStart += self.data_width;
+        }
+        //self.yuvData = yuvData;
+        /*for (int y = 0, rowStart = top * dataWidth + left; y < height; y++, rowStart += dataWidth) {
+          let middle = rowStart + width / 2;
+          for (int x1 = rowStart, x2 = rowStart + width - 1; x1 < middle; x1++, x2--) {
+            let temp = yuvData[x1];
+            yuvData[x1] = yuvData[x2];
+            yuvData[x2] = temp;
+          }
+        }*/
+    }
+}
+
+impl LuminanceSource for PlanarYUVLuminanceSource {
+    fn getRow(&self, y: usize, row: &Vec<u8>) -> Vec<u8> {
+        if y >= self.getHeight() {
+            //throw new IllegalArgumentException("Requested row is outside the image: " + y);
+            panic!("Requested row is outside the image: {}", y);
+        }
+        let width = self.getWidth();
+
+        let offset = (y + self.top) * self.data_width + self.left;
+
+        let mut row = if row.len() >= width {
+            row.to_vec()
+        } else {
+            vec![0; width]
+        };
+
+        row[..width].clone_from_slice(&self.yuv_data[offset..width + offset]);
+        //System.arraycopy(yuvData, offset, row, 0, width);
+        if self.invert {
+            row = self.invert_block_of_bytes(row);
+        }
+        return row;
+    }
+
+    fn getMatrix(&self) -> Vec<u8> {
+        let width = self.getWidth();
+        let height = self.getHeight();
+
+        // If the caller asks for the entire underlying image, save the copy and give them the
+        // original data. The docs specifically warn that result.length must be ignored.
+        if width == self.data_width && height == self.data_height {
+            let mut v = self.yuv_data.clone();
+            if self.invert {
+                v = self.invert_block_of_bytes(v);
+            }
+            return v;
+        }
+
+        let area = width * height;
+        let mut matrix = vec![0; area];
+        let mut inputOffset = self.top * self.data_width + self.left;
+
+        // If the width matches the full width of the underlying data, perform a single copy.
+        if width == self.data_width {
+            matrix[0..area].clone_from_slice(&self.yuv_data[inputOffset..area]);
+            //System.arraycopy(yuvData, inputOffset, matrix, 0, area);
+            if self.invert {
+                matrix = self.invert_block_of_bytes(matrix);
+            }
+            return matrix;
+        }
+
+        // Otherwise copy one cropped row at a time.
+        for y in 0..height {
+            //for (int y = 0; y < height; y++) {
+            let outputOffset = y * width;
+            matrix[outputOffset..outputOffset + width]
+                .clone_from_slice(&self.yuv_data[inputOffset..inputOffset + width]);
+            //System.arraycopy(yuvData, inputOffset, matrix, outputOffset, width);
+            inputOffset += self.data_width;
+        }
+
+        if self.invert {
+            matrix = self.invert_block_of_bytes(matrix);
+        }
+
+        return matrix;
+    }
+
+    fn getWidth(&self) -> usize {
+        self.width
+    }
+
+    fn getHeight(&self) -> usize {
+        self.height
+    }
+
+    fn isCropSupported(&self) -> bool {
+        return true;
+    }
+
+    fn crop(
+        &self,
+        left: usize,
+        top: usize,
+        width: usize,
+        height: usize,
+    ) -> Result<Box<dyn LuminanceSource>, Exceptions> {
+        match PlanarYUVLuminanceSource::new_with_all(
+            self.yuv_data.clone(),
+            self.data_width,
+            self.data_height,
+            self.left + left,
+            self.top + top,
+            width,
+            height,
+            false,
+            self.invert,
+        ) {
+            Ok(new) => Ok(Box::new(new)),
+            Err(_err) => Err(Exceptions::UnsupportedOperationException("".to_owned())),
+        }
+    }
+
+    fn isRotateSupported(&self) -> bool {
+        return false;
+    }
+
+    fn invert(&mut self) {
+        self.invert = !self.invert;
+    }
+}

src/qrcode/QRCodeWriterTestCase.rs

@@ -16,11 +16,10 @@
 
 use std::{
     collections::HashMap,
-    hash::Hash,
+    path::{ PathBuf},
-    path::{Path, PathBuf},
 };
 
-use image::{DynamicImage, EncodableLayout};
+use image::{DynamicImage};
 
 use crate::{
     common::BitMatrix, qrcode::QRCodeWriter, BarcodeFormat, EncodeHintType, EncodeHintValue, Writer,

src/qrcode/detector/detector.rs

@@ -18,12 +18,12 @@ use std::collections::HashMap;
 
 use crate::{
     common::{
-        detector::MathUtils, BitMatrix, DefaultGridSampler, DetectorRXingResult, GridSampler,
+        detector::MathUtils, BitMatrix, DefaultGridSampler, GridSampler,
         PerspectiveTransform,
     },
     qrcode::decoder::Version,
     result_point_utils, DecodeHintType, DecodeHintValue, DecodingHintDictionary, Exceptions,
-    RXingResultPoint, RXingResultPointCallback, ResultPoint,
+    RXingResultPointCallback, ResultPoint,
 };
 
 use super::{

src/qrcode/detector/finder_pattern_finder.rs

@@ -14,11 +14,9 @@
  * limitations under the License.
  */
 
-use std::{fs::File, io::Write};
-
 use crate::{
     common::BitMatrix, result_point_utils, DecodeHintType, DecodingHintDictionary, Exceptions,
-    RXingResultPoint, RXingResultPointCallback, ResultPoint,
+     RXingResultPointCallback, ResultPoint,
 };
 
 use super::{FinderPattern, FinderPatternInfo};

src/qrcode/detector/qrcode_detector_result.rs

@@ -1,6 +1,6 @@
 use crate::{
     common::{BitMatrix, DetectorRXingResult},
-    RXingResultPoint, ResultPoint,
+    RXingResultPoint, 
 };
 
 pub struct QRCodeDetectorResult {

src/qrcode/encoder/BitVectorTestCase.rs

@@ -23,10 +23,10 @@ use crate::common::BitArray;
 
 fn getUnsignedInt(v: &BitArray) -> u64 {
     let mut result = 0u64;
-    const offset: usize = 0;
+    const OFFSET: usize = 0;
     for i in 0..32 {
         // for (int i = 0, offset = 0; i < 32; i++) {
-        if v.get(offset + i) {
+        if v.get(OFFSET + i) {
             result |= 1 << (31 - i);
         }
     }
@@ -82,15 +82,15 @@ fn testAppendBit() {
 #[test]
 fn testAppendBits() {
     let mut v = BitArray::new();
-    v.appendBits(0x1, 1);
+    v.appendBits(0x1, 1).expect("append");
     assert_eq!(1, v.getSize());
     assert_eq!(0x80000000, getUnsignedInt(&v));
     let mut v = BitArray::new();
-    v.appendBits(0xff, 8);
+    v.appendBits(0xff, 8).expect("append");
     assert_eq!(8, v.getSize());
     assert_eq!(0xff000000, getUnsignedInt(&v));
     let mut v = BitArray::new();
-    v.appendBits(0xff7, 12);
+    v.appendBits(0xff7, 12).expect("append");
     assert_eq!(12, v.getSize());
     assert_eq!(0xff700000, getUnsignedInt(&v));
 }
@@ -102,11 +102,11 @@ fn testNumBytes() {
     v.appendBit(false);
     // 1 bit was added in the vector, so 1 byte should be consumed.
     assert_eq!(1, v.getSizeInBytes());
-    v.appendBits(0, 7);
+    v.appendBits(0, 7).expect("append");
     assert_eq!(1, v.getSizeInBytes());
-    v.appendBits(0, 8);
+    v.appendBits(0, 8).expect("append");
     assert_eq!(2, v.getSizeInBytes());
-    v.appendBits(0, 1);
+    v.appendBits(0, 1).expect("append");
     // We now have 17 bits, so 3 bytes should be consumed.
     assert_eq!(3, v.getSizeInBytes());
 }
@@ -114,9 +114,9 @@ fn testNumBytes() {
 #[test]
 fn testAppendBitVector() {
     let mut v1 = BitArray::new();
-    v1.appendBits(0xbe, 8);
+    v1.appendBits(0xbe, 8).expect("append");
     let mut v2 = BitArray::new();
-    v2.appendBits(0xef, 8);
+    v2.appendBits(0xef, 8).expect("append");
     v1.appendBitArray(v2);
     // beef = 1011 1110 1110 1111
     assert_eq!(" X.XXXXX. XXX.XXXX", v1.to_string());
@@ -125,9 +125,9 @@ fn testAppendBitVector() {
 #[test]
 fn testXOR() {
     let mut v1 = BitArray::new();
-    v1.appendBits(0x5555aaaa, 32);
+    v1.appendBits(0x5555aaaa, 32).expect("append");
     let mut v2 = BitArray::new();
-    v2.appendBits(0xaaaa5555, 32);
+    v2.appendBits(0xaaaa5555, 32).expect("append");
     v1.xor(&v2);
     assert_eq!(0xffffffff, getUnsignedInt(&v1));
 }
@@ -135,7 +135,7 @@ fn testXOR() {
 #[test]
 fn testXOR2() {
     let mut v1 = BitArray::new();
-    v1.appendBits(0x2a, 7); // 010 1010
+    v1.appendBits(0x2a, 7).expect("append"); // 010 1010
     let mut v2 = BitArray::new();
     v2.appendBits(0x55, 7); // 101 0101
     v1.xor(&v2);
@@ -145,7 +145,7 @@ fn testXOR2() {
 #[test]
 fn testAt() {
     let mut v = BitArray::new();
-    v.appendBits(0xdead, 16); // 1101 1110 1010 1101
+    v.appendBits(0xdead, 16).expect("append"); // 1101 1110 1010 1101
     assert!(v.get(0));
     assert!(v.get(1));
     assert!(!v.get(2));
@@ -170,6 +170,6 @@ fn testAt() {
 #[test]
 fn testToString() {
     let mut v = BitArray::new();
-    v.appendBits(0xdead, 16); // 1101 1110 1010 1101
+    v.appendBits(0xdead, 16).expect("append"); // 1101 1110 1010 1101
     assert_eq!(" XX.XXXX. X.X.XX.X", v.to_string());
 }

src/qrcode/encoder/EncoderTestCase.rs

@@ -686,23 +686,23 @@ fn testInterleaveWithECBytes() {
 fn testAppendNumericBytes() {
     // 1 = 01 = 0001 in 4 bits.
     let mut bits = BitArray::new();
-    encoder::appendNumericBytes("1", &mut bits);
+    encoder::appendNumericBytes("1", &mut bits).expect("append");
     assert_eq!(" ...X", bits.to_string());
     // 12 = 0xc = 0001100 in 7 bits.
     let mut bits = BitArray::new();
-    encoder::appendNumericBytes("12", &mut bits);
+    encoder::appendNumericBytes("12", &mut bits).expect("append");
     assert_eq!(" ...XX..", bits.to_string());
     // 123 = 0x7b = 0001111011 in 10 bits.
     let mut bits = BitArray::new();
-    encoder::appendNumericBytes("123", &mut bits);
+    encoder::appendNumericBytes("123", &mut bits).expect("append");
     assert_eq!(" ...XXXX. XX", bits.to_string());
     // 1234 = "123" + "4" = 0001111011 + 0100
     let mut bits = BitArray::new();
-    encoder::appendNumericBytes("1234", &mut bits);
+    encoder::appendNumericBytes("1234", &mut bits).expect("append");
     assert_eq!(" ...XXXX. XX.X..", bits.to_string());
     // Empty.
     let mut bits = BitArray::new();
-    encoder::appendNumericBytes("", &mut bits);
+    encoder::appendNumericBytes("", &mut bits).expect("append");
     assert_eq!("", bits.to_string());
 }
 
@@ -710,19 +710,19 @@ fn testAppendNumericBytes() {
 fn testAppendAlphanumericBytes() {
     // A = 10 = 0xa = 001010 in 6 bits
     let mut bits = BitArray::new();
-    encoder::appendAlphanumericBytes("A", &mut bits);
+    encoder::appendAlphanumericBytes("A", &mut bits).expect("append");
     assert_eq!(" ..X.X.", bits.to_string());
     // AB = 10 * 45 + 11 = 461 = 0x1cd = 00111001101 in 11 bits
     let mut bits = BitArray::new();
-    encoder::appendAlphanumericBytes("AB", &mut bits);
+    encoder::appendAlphanumericBytes("AB", &mut bits).expect("append");
     assert_eq!(" ..XXX..X X.X", bits.to_string());
     // ABC = "AB" + "C" = 00111001101 + 001100
     let mut bits = BitArray::new();
-    encoder::appendAlphanumericBytes("ABC", &mut bits);
+    encoder::appendAlphanumericBytes("ABC", &mut bits).expect("append");
     assert_eq!(" ..XXX..X X.X..XX. .", bits.to_string());
     // Empty.
     let mut bits = BitArray::new();
-    encoder::appendAlphanumericBytes("", &mut bits);
+    encoder::appendAlphanumericBytes("", &mut bits).expect("append");
     assert_eq!("", bits.to_string());
     // Invalid data.
     // try {
@@ -738,11 +738,11 @@ fn testAppendAlphanumericBytes() {
 fn testAppend8BitBytes() {
     // 0x61, 0x62, 0x63
     let mut bits = BitArray::new();
-    encoder::append8BitBytes("abc", &mut bits, encoder::DEFAULT_BYTE_MODE_ENCODING);
+    encoder::append8BitBytes("abc", &mut bits, encoder::DEFAULT_BYTE_MODE_ENCODING).expect("append");
     assert_eq!(" .XX....X .XX...X. .XX...XX", bits.to_string());
     // Empty.
     let mut bits = BitArray::new();
-    encoder::append8BitBytes("", &mut bits, encoder::DEFAULT_BYTE_MODE_ENCODING);
+    encoder::append8BitBytes("", &mut bits, encoder::DEFAULT_BYTE_MODE_ENCODING).expect("append");
     assert_eq!("", bits.to_string());
 }
 
@@ -750,9 +750,9 @@ fn testAppend8BitBytes() {
 #[test]
 fn testAppendKanjiBytes() {
     let mut bits = BitArray::new();
-    encoder::appendKanjiBytes(&shiftJISString(&[0x93, 0x5f]), &mut bits);
+    encoder::appendKanjiBytes(&shiftJISString(&[0x93, 0x5f]), &mut bits).expect("append");
     assert_eq!(" .XX.XX.. XXXXX", bits.to_string());
-    encoder::appendKanjiBytes(&shiftJISString(&[0xe4, 0xaa]), &mut bits);
+    encoder::appendKanjiBytes(&shiftJISString(&[0xe4, 0xaa]), &mut bits).expect("append");
     assert_eq!(" .XX.XX.. XXXXXXX. X.X.X.X. X.", bits.to_string());
 }
 
@@ -826,7 +826,7 @@ fn testBugInBitVectorNumBytes() {
     //     11745 bits = 1468.125 bytes are needed (i.e. cannot fit in 1468
     //     bytes).
     let mut builder = String::with_capacity(3518);
-    for x in 0..3518 {
+    for _x in 0..3518 {
         // for (int x = 0; x < 3518; x++) {
         builder.push('0');
     }

src/qrcode/encoder/MatrixUtilTestCase.rs

@@ -209,7 +209,7 @@ fn testEmbedDataBits() {
     )
     .expect("op ok");
     let bits = BitArray::new();
-    matrix_util::embedDataBits(&bits, -1, &mut matrix);
+    matrix_util::embedDataBits(&bits, -1, &mut matrix).expect("append");
     let expected = r" 1 1 1 1 1 1 1 0 0 0 0 0 0 0 1 1 1 1 1 1 1
  1 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 1
  1 0 1 1 1 0 1 0 0 0 0 0 0 0 1 0 1 1 1 0 1
@@ -254,7 +254,7 @@ fn testBuildMatrix() {
         Version::getVersionForNumber(1).expect("version"), // Version 1
         3,                                                 // Mask pattern 3
         &mut matrix,
-    );
+    ).expect("append");
     let expected = r" 1 1 1 1 1 1 1 0 0 1 1 0 0 0 1 1 1 1 1 1 1
  1 0 0 0 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 1
  1 0 1 1 1 0 1 0 0 0 0 1 0 0 1 0 1 1 1 0 1
@@ -344,6 +344,6 @@ fn testMakeVersionInfoBits() {
 fn testMakeTypeInfoInfoBits() {
     // From Appendix C in JISX0510:2004 (p 65)
     let mut bits = BitArray::new();
-    matrix_util::makeTypeInfoBits(&ErrorCorrectionLevel::M, 5, &mut bits);
+    matrix_util::makeTypeInfoBits(&ErrorCorrectionLevel::M, 5, &mut bits).expect("append");
     assert_eq!(" X......X X..XXX.", bits.to_string());
 }

src/qrcode/encoder/encoder.rs

@@ -43,7 +43,7 @@ use unicode_segmentation::UnicodeSegmentation;
 use crate::{
     common::{
         reedsolomon::{get_predefined_genericgf, PredefinedGenericGF, ReedSolomonEncoder},
-        BitArray, CharacterSetECI, StringUtils,
+        BitArray, CharacterSetECI, 
     },
     qrcode::decoder::{ErrorCorrectionLevel, Mode, Version, VersionRef},
     EncodeHintType, EncodeHintValue, EncodingHintDictionary, Exceptions,

src/qrcode/encoder/minimal_encoder.rs

@@ -24,7 +24,7 @@ use crate::{
     Exceptions,
 };
 
-use unicode_segmentation::{Graphemes, UnicodeSegmentation};
+use unicode_segmentation::{ UnicodeSegmentation};
 
 use super::encoder;
 

src/qrcode/qr_code_reader.rs

@@ -19,7 +19,7 @@ use std::collections::HashMap;
 use crate::{
     common::{BitMatrix, DecoderRXingResult, DetectorRXingResult},
     BarcodeFormat, DecodeHintType, Exceptions, RXingResult, RXingResultMetadataType,
-    RXingResultMetadataValue, RXingResultPoint, Reader, ResultPoint,
+    RXingResultMetadataValue, RXingResultPoint, Reader, 
 };
 
 use super::{

src/reader.rs

@@ -0,0 +1,71 @@
+
+/*
+ * 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;
+
+use crate::{BinaryBitmap, RXingResult, Exceptions, DecodingHintDictionary};
+
+/**
+ * Implementations of this interface can decode an image of a barcode in some format into
+ * the String it encodes. For example, {@link com.google.zxing.qrcode.QRCodeReader} can
+ * decode a QR code. The decoder may optionally receive hints from the caller which may help
+ * it decode more quickly or accurately.
+ *
+ * See {@link MultiFormatReader}, which attempts to determine what barcode
+ * format is present within the image as well, and then decodes it accordingly.
+ *
+ * @author Sean Owen
+ * @author dswitkin@google.com (Daniel Switkin)
+ */
+pub trait Reader {
+    /**
+     * Locates and decodes a barcode in some format within an image.
+     *
+     * @param image image of barcode to decode
+     * @return String which the barcode encodes
+     * @throws NotFoundException if no potential barcode is found
+     * @throws ChecksumException if a potential barcode is found but does not pass its checksum
+     * @throws FormatException if a potential barcode is found but format is invalid
+     */
+    fn decode(&self, image: &BinaryBitmap) -> Result<RXingResult, Exceptions>;
+
+    /**
+     * Locates and decodes a barcode in some format within an image. This method also accepts
+     * hints, each possibly associated to some data, which may help the implementation decode.
+     *
+     * @param image image of barcode to decode
+     * @param hints passed as a {@link Map} from {@link DecodeHintType}
+     * to arbitrary data. The
+     * meaning of the data depends upon the hint type. The implementation may or may not do
+     * anything with these hints.
+     * @return String which the barcode encodes
+     * @throws NotFoundException if no potential barcode is found
+     * @throws ChecksumException if a potential barcode is found but does not pass its checksum
+     * @throws FormatException if a potential barcode is found but format is invalid
+     */
+    fn decode_with_hints(
+        &self,
+        image: &BinaryBitmap,
+        hints: &DecodingHintDictionary,
+    ) -> Result<RXingResult, Exceptions>;
+
+    /**
+     * Resets any internal state the implementation has after a decode, to prepare it
+     * for reuse.
+     */
+    fn reset(&self);
+}

src/result_point.rs

@@ -0,0 +1,26 @@
+
+/*
+ * 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;
+
+use crate::RXingResultPoint;
+
+pub trait ResultPoint {
+    fn getX(&self) -> f32;
+    fn getY(&self) -> f32;
+    fn into_rxing_result_point(self) -> RXingResultPoint;
+}

src/result_point_utils.rs

@@ -0,0 +1,89 @@
+use crate::{common::detector::MathUtils, ResultPoint};
+
+    /**
+     * Orders an array of three RXingResultPoints in an order [A,B,C] such that AB is less than AC
+     * and BC is less than AC, and the angle between BC and BA is less than 180 degrees.
+     *
+     * @param patterns array of three {@code RXingResultPoint} to order
+     */
+    pub fn orderBestPatterns<T: ResultPoint + Copy + Clone>(patterns: &mut [T; 3]) {
+        // Find distances between pattern centers
+        let zeroOneDistance = MathUtils::distance_float(
+            patterns[0].getX(),
+            patterns[0].getY(),
+            patterns[1].getX(),
+            patterns[1].getY(),
+        );
+        let oneTwoDistance = MathUtils::distance_float(
+            patterns[1].getX(),
+            patterns[1].getY(),
+            patterns[2].getX(),
+            patterns[2].getY(),
+        );
+        let zeroTwoDistance = MathUtils::distance_float(
+            patterns[0].getX(),
+            patterns[0].getY(),
+            patterns[2].getX(),
+            patterns[2].getY(),
+        );
+
+        let mut pointA; //: &RXingResultPoint;
+        let  pointB; //: &RXingResultPoint;
+        let mut pointC; //: &RXingResultPoint;
+                        // Assume one closest to other two is B; A and C will just be guesses at first
+        if oneTwoDistance >= zeroOneDistance && oneTwoDistance >= zeroTwoDistance {
+            pointB = patterns[0];
+            pointA = patterns[1];
+            pointC = patterns[2];
+        } else if zeroTwoDistance >= oneTwoDistance && zeroTwoDistance >= zeroOneDistance {
+            pointB = patterns[1];
+            pointA = patterns[0];
+            pointC = patterns[2];
+        } else {
+            pointB = patterns[2];
+            pointA = patterns[0];
+            pointC = patterns[1];
+        }
+
+        // Use cross product to figure out whether A and C are correct or flipped.
+        // This asks whether BC x BA has a positive z component, which is the arrangement
+        // we want for A, B, C. If it's negative, then we've got it flipped around and
+        // should swap A and C.
+        if crossProductZ(pointA, pointB, pointC) < 0.0f32 {
+            let temp = pointA;
+            pointA = pointC;
+            pointC = temp;
+        }
+
+        let pa = pointA;
+        let pb = pointB;
+        let pc = pointC;
+
+        patterns[0] = pa;
+        patterns[1] = pb;
+        patterns[2] = pc;
+    }
+
+    /**
+     * @param pattern1 first pattern
+     * @param pattern2 second pattern
+     * @return distance between two points
+     */
+    pub fn distance<T: ResultPoint>(pattern1: &T, pattern2: &T) -> f32 {
+        return MathUtils::distance_float(
+            pattern1.getX(),
+            pattern1.getY(),
+            pattern2.getX(),
+            pattern2.getY(),
+        );
+    }
+
+    /**
+     * Returns the z component of the cross product between vectors BC and BA.
+     */
+    pub fn crossProductZ<T: ResultPoint>(pointA: T, pointB: T, pointC: T) -> f32 {
+        let bX = pointB.getX();
+        let bY = pointB.getY();
+        return ((pointC.getX() - bX) * (pointA.getY() - bY))
+            - ((pointC.getY() - bY) * (pointA.getX() - bX));
+    }

src/rgb_luminance_source.rs

@@ -0,0 +1,207 @@
+
+/*
+ * 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;
+
+use crate::{Exceptions, LuminanceSource};
+
+/**
+ * This class is used to help decode images from files which arrive as RGB data from
+ * an ARGB pixel array. It does not support rotation.
+ *
+ * @author dswitkin@google.com (Daniel Switkin)
+ * @author Betaminos
+ */
+#[derive(Debug, Clone)]
+pub struct RGBLuminanceSource {
+    luminances: Vec<u8>,
+    dataWidth: usize,
+    dataHeight: usize,
+    left: usize,
+    top: usize,
+    width: usize,
+    height: usize,
+    invert: bool,
+}
+
+impl LuminanceSource for RGBLuminanceSource {
+    fn getRow(&self, y: usize, row: &Vec<u8>) -> Vec<u8> {
+        if y >= self.getHeight() {
+            panic!("Requested row is outside the image: {}", y);
+        }
+        let width = self.getWidth();
+
+        let offset = (y + self.top) * self.dataWidth + self.left;
+
+        let mut row = if row.len() >= width {
+            row.to_vec()
+        } else {
+            vec![0; width]
+        };
+
+        row[..width].clone_from_slice(&self.luminances[offset..offset + width]);
+        //System.arraycopy(self.luminances, offset, row, 0, width);
+        if self.invert {
+            row = self.invert_block_of_bytes(row);
+        }
+        return row;
+    }
+
+    fn getMatrix(&self) -> Vec<u8> {
+        let width = self.getWidth();
+        let height = self.getHeight();
+
+        // If the caller asks for the entire underlying image, save the copy and give them the
+        // original data. The docs specifically warn that result.length must be ignored.
+        if width == self.dataWidth && height == self.dataHeight {
+            let mut z = self.luminances.clone();
+            if self.invert {
+                z = self.invert_block_of_bytes(z);
+            }
+            return z;
+        }
+
+        let area = width * height;
+        let mut matrix = vec![0; area];
+        let mut inputOffset = self.top * self.dataWidth + self.left;
+
+        // If the width matches the full width of the underlying data, perform a single copy.
+        if width == self.dataWidth {
+            matrix[..area].clone_from_slice(&self.luminances[inputOffset..area + inputOffset]);
+            //System.arraycopy(self.luminances, inputOffset, matrix, 0, area);
+            if self.invert {
+                matrix = self.invert_block_of_bytes(matrix);
+            }
+            return matrix;
+        }
+
+        // Otherwise copy one cropped row at a time.
+        for y in 0..height {
+            //for (int y = 0; y < height; y++) {
+            let outputOffset = y * width;
+            matrix[outputOffset..width + outputOffset]
+                .clone_from_slice(&self.luminances[inputOffset..width + inputOffset]);
+            //System.arraycopy(luminances, inputOffset, matrix, outputOffset, width);
+            inputOffset += self.dataWidth;
+        }
+
+        if self.invert {
+            matrix = self.invert_block_of_bytes(matrix);
+        }
+        return matrix;
+    }
+
+    fn getWidth(&self) -> usize {
+        self.width
+    }
+
+    fn getHeight(&self) -> usize {
+        self.height
+    }
+
+    fn isCropSupported(&self) -> bool {
+        return true;
+    }
+
+    fn crop(
+        &self,
+        left: usize,
+        top: usize,
+        width: usize,
+        height: usize,
+    ) -> Result<Box<dyn LuminanceSource>, Exceptions> {
+        match RGBLuminanceSource::new_complex(
+            &self.luminances,
+            self.dataWidth,
+            self.dataHeight,
+            self.left + left,
+            self.top + top,
+            width,
+            height,
+        ) {
+            Ok(crop) => Ok(Box::new(crop)),
+            Err(_error) => Err(Exceptions::UnsupportedOperationException("".to_owned())),
+        }
+    }
+
+    fn invert(&mut self) {
+        self.invert = !self.invert;
+    }
+}
+
+impl RGBLuminanceSource {
+    pub fn new_with_width_height_pixels(width: usize, height: usize, pixels: &Vec<u32>) -> Self {
+        //super(width, height);
+
+        let dataWidth = width;
+        let dataHeight = height;
+        let left = 0;
+        let top = 0;
+
+        // In order to measure pure decoding speed, we convert the entire image to a greyscale array
+        // up front, which is the same as the Y channel of the YUVLuminanceSource in the real app.
+        //
+        // Total number of pixels suffices, can ignore shape
+        let size = width * height;
+        let mut luminances: Vec<u8> = vec![0; size];
+        for offset in 0..size {
+            //for (int offset = 0; offset < size; offset++) {
+            let pixel = pixels[offset];
+            let r = (pixel >> 16) & 0xff; // red
+            let g2 = (pixel >> 7) & 0x1fe; // 2 * green
+            let b = pixel & 0xff; // blue
+                                  // Calculate green-favouring average cheaply
+            luminances[offset] = ((r + g2 + b) / 4).try_into().unwrap();
+        }
+        Self {
+            luminances,
+            dataWidth,
+            dataHeight,
+            left: left,
+            top: top,
+            width,
+            height,
+            invert: false,
+        }
+    }
+
+    fn new_complex(
+        pixels: &Vec<u8>,
+        data_width: usize,
+        data_height: usize,
+        left: usize,
+        top: usize,
+        width: usize,
+        height: usize,
+    ) -> Result<Self, Exceptions> {
+        if left + width > data_width || top + height > data_height {
+            return Err(Exceptions::IllegalArgumentException(
+                "Crop rectangle does not fit within image data.".to_owned(),
+            ));
+        }
+        Ok(Self {
+            luminances: pixels.clone(),
+            dataWidth: data_width,
+            dataHeight: data_height,
+            left,
+            top,
+            width,
+            height,
+            invert: false,
+        })
+    }
+}

src/rxing_result.rs

@@ -0,0 +1,180 @@
+
+/*
+ * 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.EnumMap;
+//import java.util.Map;
+
+use std::{fmt, collections::HashMap, time::{SystemTime, UNIX_EPOCH}};
+
+use crate::{RXingResultMetadataValue, RXingResultMetadataType, BarcodeFormat, RXingResultPoint};
+
+/**
+ * <p>Encapsulates the result of decoding a barcode within an image.</p>
+ *
+ * @author Sean Owen
+ */
+pub struct RXingResult {
+    text: String,
+    rawBytes: Vec<u8>,
+    numBits: usize,
+    resultPoints: Vec<RXingResultPoint>,
+    format: BarcodeFormat,
+    resultMetadata: HashMap<RXingResultMetadataType, RXingResultMetadataValue>,
+    timestamp: u128,
+}
+impl RXingResult {
+    pub fn new(
+        text: &str,
+        rawBytes: Vec<u8>,
+        resultPoints: Vec<RXingResultPoint>,
+        format: BarcodeFormat,
+    ) -> Self {
+        Self::new_timestamp(
+            text,
+            rawBytes,
+            resultPoints,
+            format,
+            SystemTime::now()
+                .duration_since(UNIX_EPOCH)
+                .expect("Time went backwards")
+                .as_millis(),
+        )
+    }
+
+    pub fn new_timestamp(
+        text: &str,
+        rawBytes: Vec<u8>,
+        resultPoints: Vec<RXingResultPoint>,
+        format: BarcodeFormat,
+        timestamp: u128,
+    ) -> Self {
+        let l = rawBytes.len();
+        Self::new_complex(text, rawBytes, 8 * l, resultPoints, format, timestamp)
+    }
+
+    pub fn new_complex(
+        text: &str,
+        rawBytes: Vec<u8>,
+        numBits: usize,
+        resultPoints: Vec<RXingResultPoint>,
+        format: BarcodeFormat,
+        timestamp: u128,
+    ) -> Self {
+        Self {
+            text: text.to_owned(),
+            rawBytes: rawBytes,
+            numBits,
+            resultPoints,
+            format,
+            resultMetadata: HashMap::new(),
+            timestamp,
+        }
+    }
+
+    /**
+     * @return raw text encoded by the barcode
+     */
+    pub fn getText(&self) -> &String {
+        return &self.text;
+    }
+
+    /**
+     * @return raw bytes encoded by the barcode, if applicable, otherwise {@code null}
+     */
+    pub fn getRawBytes(&self) -> &Vec<u8> {
+        return &self.rawBytes;
+    }
+
+    /**
+     * @return how many bits of {@link #getRawBytes()} are valid; typically 8 times its length
+     * @since 3.3.0
+     */
+    pub fn getNumBits(&self) -> usize {
+        return self.numBits;
+    }
+
+    /**
+     * @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.
+     */
+    pub fn getRXingResultPoints(&self) -> &Vec<RXingResultPoint> {
+        return &self.resultPoints;
+    }
+
+    /**
+     * @return {@link BarcodeFormat} representing the format of the barcode that was decoded
+     */
+    pub fn getBarcodeFormat(&self) -> &BarcodeFormat {
+        return &self.format;
+    }
+
+    /**
+     * @return {@link Map} mapping {@link RXingResultMetadataType} keys to values. May be
+     *   {@code null}. This contains optional metadata about what was detected about the barcode,
+     *   like orientation.
+     */
+    pub fn getRXingResultMetadata(
+        &self,
+    ) -> &HashMap<RXingResultMetadataType, RXingResultMetadataValue> {
+        return &self.resultMetadata;
+    }
+
+    pub fn putMetadata(
+        &mut self,
+        md_type: RXingResultMetadataType,
+        value: RXingResultMetadataValue,
+    ) {
+        self.resultMetadata.insert(md_type, value);
+    }
+
+    pub fn putAllMetadata(
+        &mut self,
+        metadata: HashMap<RXingResultMetadataType, RXingResultMetadataValue>,
+    ) {
+        if self.resultMetadata.is_empty() {
+            self.resultMetadata = metadata;
+        } else {
+            for (key, value) in metadata.into_iter() {
+                self.resultMetadata.insert(key, value);
+            }
+        }
+    }
+
+    pub fn addRXingResultPoints(&mut self, newPoints: &mut Vec<RXingResultPoint>) {
+        //RXingResultPoint[] oldPoints = resultPoints;
+        if !newPoints.is_empty() {
+            // let allPoints:Vec<RXingResultPoint>= Vec::with_capacity(oldPoints.len() + newPoints.len());
+            //System.arraycopy(oldPoints, 0, allPoints, 0, oldPoints.length);
+            //System.arraycopy(newPoints, 0, allPoints, oldPoints.length, newPoints.length);
+            //resultPoints = allPoints;
+            self.resultPoints.append(newPoints);
+        }
+    }
+
+    pub fn getTimestamp(&self) -> u128 {
+        return self.timestamp;
+    }
+}
+
+impl fmt::Display for RXingResult {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        write!(f, "{}", self.text)
+    }
+}

src/rxing_result_metadata.rs

@@ -0,0 +1,204 @@
+
+/*
+ * 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;
+
+/**
+ * Represents some type of metadata about the result of the decoding that the decoder
+ * wishes to communicate back to the caller.
+ *
+ * @author Sean Owen
+ */
+#[derive(Eq, PartialEq, Hash, Debug)]
+pub enum RXingResultMetadataType {
+    /**
+     * Unspecified, application-specific metadata. Maps to an unspecified {@link Object}.
+     */
+    OTHER,
+
+    /**
+     * Denotes the likely approximate orientation of the barcode in the image. This value
+     * is given as degrees rotated clockwise from the normal, upright orientation.
+     * For example a 1D barcode which was found by reading top-to-bottom would be
+     * said to have orientation "90". This key maps to an {@link Integer} whose
+     * value is in the range [0,360).
+     */
+    ORIENTATION,
+
+    /**
+     * <p>2D barcode formats typically encode text, but allow for a sort of 'byte mode'
+     * which is sometimes used to encode binary data. While {@link RXingResult} makes available
+     * the complete raw bytes in the barcode for these formats, it does not offer the bytes
+     * from the byte segments alone.</p>
+     *
+     * <p>This maps to a {@link java.util.List} of byte arrays corresponding to the
+     * raw bytes in the byte segments in the barcode, in order.</p>
+     */
+    BYTE_SEGMENTS,
+
+    /**
+     * Error correction level used, if applicable. The value type depends on the
+     * format, but is typically a String.
+     */
+    ERROR_CORRECTION_LEVEL,
+
+    /**
+     * For some periodicals, indicates the issue number as an {@link Integer}.
+     */
+    ISSUE_NUMBER,
+
+    /**
+     * For some products, indicates the suggested retail price in the barcode as a
+     * formatted {@link String}.
+     */
+    SUGGESTED_PRICE,
+
+    /**
+     * For some products, the possible country of manufacture as a {@link String} denoting the
+     * ISO country code. Some map to multiple possible countries, like "US/CA".
+     */
+    POSSIBLE_COUNTRY,
+
+    /**
+     * For some products, the extension text
+     */
+    UPC_EAN_EXTENSION,
+
+    /**
+     * PDF417-specific metadata
+     */
+    PDF417_EXTRA_METADATA,
+
+    /**
+     * If the code format supports structured append and the current scanned code is part of one then the
+     * sequence number is given with it.
+     */
+    STRUCTURED_APPEND_SEQUENCE,
+
+    /**
+     * If the code format supports structured append and the current scanned code is part of one then the
+     * parity is given with it.
+     */
+    STRUCTURED_APPEND_PARITY,
+
+    /**
+     * Barcode Symbology Identifier.
+     * Note: According to the GS1 specification the identifier may have to replace a leading FNC1/GS character
+     * when prepending to the barcode content.
+     */
+    SYMBOLOGY_IDENTIFIER,
+}
+
+impl From<String> for RXingResultMetadataType {
+    fn from(in_str: String) -> Self {
+        match in_str.as_str() {
+            "OTHER" => RXingResultMetadataType::OTHER,
+            "ORIENTATION" => RXingResultMetadataType::ORIENTATION,
+            "BYTE_SEGMENTS" => RXingResultMetadataType::BYTE_SEGMENTS,
+            "ERROR_CORRECTION_LEVEL" => RXingResultMetadataType::ERROR_CORRECTION_LEVEL,
+            "ISSUE_NUMBER" => RXingResultMetadataType::ISSUE_NUMBER,
+            "SUGGESTED_PRICE" => RXingResultMetadataType::SUGGESTED_PRICE,
+            "POSSIBLE_COUNTRY" => RXingResultMetadataType::POSSIBLE_COUNTRY,
+            "UPC_EAN_EXTENSION" => RXingResultMetadataType::UPC_EAN_EXTENSION,
+            "PDF417_EXTRA_METADATA" => RXingResultMetadataType::PDF417_EXTRA_METADATA,
+            "STRUCTURED_APPEND_SEQUENCE" => RXingResultMetadataType::STRUCTURED_APPEND_SEQUENCE,
+            "STRUCTURED_APPEND_PARITY" => RXingResultMetadataType::STRUCTURED_APPEND_PARITY,
+            "SYMBOLOGY_IDENTIFIER" => RXingResultMetadataType::SYMBOLOGY_IDENTIFIER,
+            _ => RXingResultMetadataType::OTHER,
+        }
+    }
+}
+
+#[derive(Debug, PartialEq, Eq)]
+pub enum RXingResultMetadataValue {
+    /**
+     * Unspecified, application-specific metadata. Maps to an unspecified {@link Object}.
+     */
+    OTHER(String),
+
+    /**
+     * Denotes the likely approximate orientation of the barcode in the image. This value
+     * is given as degrees rotated clockwise from the normal, upright orientation.
+     * For example a 1D barcode which was found by reading top-to-bottom would be
+     * said to have orientation "90". This key maps to an {@link Integer} whose
+     * value is in the range [0,360).
+     */
+    Orientation(i32),
+
+    /**
+     * <p>2D barcode formats typically encode text, but allow for a sort of 'byte mode'
+     * which is sometimes used to encode binary data. While {@link RXingResult} makes available
+     * the complete raw bytes in the barcode for these formats, it does not offer the bytes
+     * from the byte segments alone.</p>
+     *
+     * <p>This maps to a {@link java.util.List} of byte arrays corresponding to the
+     * raw bytes in the byte segments in the barcode, in order.</p>
+     */
+    ByteSegments(Vec<Vec<u8>>),
+
+    /**
+     * Error correction level used, if applicable. The value type depends on the
+     * format, but is typically a String.
+     */
+    ErrorCorrectionLevel(String),
+
+    /**
+     * For some periodicals, indicates the issue number as an {@link Integer}.
+     */
+    IssueNumber(i32),
+
+    /**
+     * For some products, indicates the suggested retail price in the barcode as a
+     * formatted {@link String}.
+     */
+    SuggestedPrice(String),
+
+    /**
+     * For some products, the possible country of manufacture as a {@link String} denoting the
+     * ISO country code. Some map to multiple possible countries, like "US/CA".
+     */
+    PossibleCountry(String),
+
+    /**
+     * For some products, the extension text
+     */
+    UpcEanExtension(String),
+
+    /**
+     * PDF417-specific metadata
+     */
+    Pdf417ExtraMetadata(String),
+
+    /**
+     * If the code format supports structured append and the current scanned code is part of one then the
+     * sequence number is given with it.
+     */
+    StructuredAppendSequence(i32),
+
+    /**
+     * If the code format supports structured append and the current scanned code is part of one then the
+     * parity is given with it.
+     */
+    StructuredAppendParity(i32),
+
+    /**
+     * Barcode Symbology Identifier.
+     * Note: According to the GS1 specification the identifier may have to replace a leading FNC1/GS character
+     * when prepending to the barcode content.
+     */
+    SymbologyIdentifier(String),
+}

src/rxing_result_point.rs

@@ -0,0 +1,54 @@
+use std::fmt;
+
+use crate::ResultPoint;
+use std::hash::Hash;
+
+
+/**
+ * <p>Encapsulates a point of interest in an image containing a barcode. Typically, this
+ * would be the location of a finder pattern or the corner of the barcode, for example.</p>
+ *
+ * @author Sean Owen
+ */
+#[derive(Debug, Clone, Copy)]
+pub struct RXingResultPoint {
+    pub(crate) x: f32,
+    pub(crate)y: f32,
+}
+impl Hash for RXingResultPoint {
+    fn hash<H: std::hash::Hasher>(&self, state: &mut H) {
+        self.x.to_string().hash(state);
+        self.y.to_string().hash(state);
+    }
+}
+impl PartialEq for RXingResultPoint {
+    fn eq(&self, other: &Self) -> bool {
+        self.x.to_string() == other.x.to_string() && self.y.to_string() == other.y.to_string()
+    }
+}
+impl Eq for RXingResultPoint {}
+impl RXingResultPoint {
+    pub const fn new(x: f32, y: f32) -> Self {
+        Self { x, y }
+    }
+}
+
+impl ResultPoint for RXingResultPoint {
+    fn getX(&self) -> f32 {
+        return self.x;
+    }
+
+    fn getY(&self) -> f32 {
+        return self.y;
+    }
+
+    fn into_rxing_result_point(self) -> RXingResultPoint {
+        self
+    }
+}
+
+impl fmt::Display for RXingResultPoint {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        write!(f, "({},{})", self.x, self.y)
+    }
+}

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>;
+}

tests/aztec_blackbox_tests.rs

@@ -30,12 +30,12 @@ fn aztec_black_box1_test_case() {
     );
 
     // super("src/test/resources/blackbox/aztec-1", AztecReader::new(), BarcodeFormat::AZTEC);
-    tester.addTest(14, 14, 0.0);
+    tester.add_test(14, 14, 0.0);
-    tester.addTest(14, 14, 90.0);
+    tester.add_test(14, 14, 90.0);
-    tester.addTest(14, 14, 180.0);
+    tester.add_test(14, 14, 180.0);
-    tester.addTest(14, 14, 270.0);
+    tester.add_test(14, 14, 270.0);
 
-    tester.testBlackBox();
+    tester.test_black_box();
 }
 
 /**
@@ -51,10 +51,10 @@ fn aztec_black_box2_test_case() {
         BarcodeFormat::AZTEC,
     );
     // super(, new AztecReader(), BarcodeFormat.AZTEC);
-    tester.addTest(5, 5, 0.0);
+    tester.add_test(5, 5, 0.0);
-    tester.addTest(4, 4, 90.0);
+    tester.add_test(4, 4, 90.0);
-    tester.addTest(6, 6, 180.0);
+    tester.add_test(6, 6, 180.0);
-    tester.addTest(3, 3, 270.0);
+    tester.add_test(3, 3, 270.0);
 
-    tester.testBlackBox();
+    tester.test_black_box();
 }

tests/common/abstract_black_box_test_case.rs

@@ -43,9 +43,9 @@ pub struct AbstractBlackBoxTestCase<T:Reader> {
 
 impl<T:Reader> AbstractBlackBoxTestCase<T>  {
 
-    pub fn buildTestBase(testBasePathSuffix: &str) -> Box<Path> {
+    pub fn build_test_base(test_base_path_suffix: &str) -> Box<Path> {
         // A little workaround to prevent aggravation in my IDE
-        let test_base = Path::new(testBasePathSuffix);
+        let test_base = Path::new(test_base_path_suffix);
         // if !testBase.exists() {
         //   // try starting with 'core' since the test base is often given as the project root
         //   testBase = Paths.get("core").resolve(testBasePathSuffix);
@@ -59,7 +59,7 @@ impl<T:Reader> AbstractBlackBoxTestCase<T>  {
         expected_format: BarcodeFormat,
     ) -> Self {
         Self {
-            test_base: Self::buildTestBase(test_base_path_suffix),
+            test_base: Self::build_test_base(test_base_path_suffix),
             barcode_reader,
             expected_format,
             test_rxing_results: Vec::new(),
@@ -67,15 +67,15 @@ impl<T:Reader> AbstractBlackBoxTestCase<T>  {
         }
     }
 
-    pub fn getTestBase(&self) -> &Box<Path> {
+    pub fn get_test_base(&self) -> &Box<Path> {
         &self.test_base
     }
 
-    pub fn addTest(&mut self, must_pass_count: u32, try_harder_count: u32, rotation: f32) {
+    pub fn add_test(&mut self, must_pass_count: u32, try_harder_count: u32, rotation: f32) {
-        self.addTestComplex(must_pass_count, try_harder_count, 0, 0, rotation);
+        self.add_test_complex(must_pass_count, try_harder_count, 0, 0, rotation);
     }
 
-    pub fn addHint(&mut self, hint: DecodeHintType, value: DecodeHintValue) {
+    pub fn add_hint(&mut self, hint: DecodeHintType, value: DecodeHintValue) {
         self.hints.insert(hint, value);
     }
 
@@ -89,7 +89,7 @@ impl<T:Reader> AbstractBlackBoxTestCase<T>  {
      *                             reading the wrong contents using the try harder flag
      * @param rotation The rotation in degrees clockwise to use for this test.
      */
-    pub fn addTestComplex(
+    pub fn add_test_complex(
         &mut self,
         must_pass_count: u32,
         try_harder_count: u32,
@@ -106,14 +106,14 @@ impl<T:Reader> AbstractBlackBoxTestCase<T>  {
         ));
     }
 
-    pub fn getImageFiles(&self) -> Vec<PathBuf> {
+    pub fn get_image_files(&self) -> Vec<PathBuf> {
         assert!(
             self.test_base.exists(),
             "Please download and install test images, and run from the 'core' directory"
         );
         // let paths = Vec::new();
         let path_search = read_dir(&self.test_base);
-        const possible_extensions: &str = "jpg,jpeg,gif,png,JPG,JPEG,GIF,PNG";
+        const POSSIBLE_EXTENSIONS: &str = "jpg,jpeg,gif,png,JPG,JPEG,GIF,PNG";
 
         let mut paths = path_search
             .unwrap()
@@ -121,7 +121,7 @@ impl<T:Reader> AbstractBlackBoxTestCase<T>  {
             .filter(|r| r.is_ok()) // Get rid of Err variants for Result<DirEntry>
             .map(|r| r.unwrap().path()) // This is safe, since we only have the Ok variants
             .filter(|r| r.is_file()) // Filter out non-folders
-            .filter(|r| possible_extensions.contains(r.extension().unwrap().to_str().unwrap()))
+            .filter(|r| POSSIBLE_EXTENSIONS.contains(r.extension().unwrap().to_str().unwrap()))
             // .map(|r| r.into_boxed_path())
             .collect::<Vec<PathBuf>>();
 
@@ -130,14 +130,14 @@ impl<T:Reader> AbstractBlackBoxTestCase<T>  {
         paths
     }
 
-    pub fn getReader(&self) -> &T {
+    pub fn get_reader(&self) -> &T {
         &self.barcode_reader
     }
 
-    pub fn testBlackBox(&self) {
+    pub fn test_black_box(&self) {
         assert!(!self.test_rxing_results.is_empty());
 
-        let image_files = self.getImageFiles();
+        let image_files = self.get_image_files();
         let test_count = self.test_rxing_results.len();
 
         let mut passed_counts = vec![0usize; test_count];
@@ -145,16 +145,16 @@ impl<T:Reader> AbstractBlackBoxTestCase<T>  {
         let mut try_harder_counts = vec![0usize; test_count];
         let mut try_harder_misread_counts = vec![0usize; test_count];
 
-        for testImage in &image_files {
+        for test_image in &image_files {
             // for (Path testImage : imageFiles) {
-            log::info(format!("Starting {}", testImage.to_string_lossy()));
+            log::info(format!("Starting {}", test_image.to_string_lossy()));
 
-            let image = image::open(testImage).unwrap(); //ImageIO.read(testImage.toFile());
+            let image = image::open(test_image).unwrap(); //ImageIO.read(testImage.toFile());
 
             //let testImageFileName = testImage.getFileName().toString();
-            let file_base_name = testImage.file_stem().unwrap();
+            let file_base_name = test_image.file_stem().unwrap();
             //let expectedTextFile = self.testBase.resolve(fileBaseName + ".txt");
-            let mut expected_text_file = testImage.clone();
+            let mut expected_text_file = test_image.clone();
             expected_text_file.set_extension("txt");
             let expected_text = if expected_text_file.exists() {
                 Self::read_file_as_string(expected_text_file)
@@ -171,7 +171,7 @@ impl<T:Reader> AbstractBlackBoxTestCase<T>  {
             let mut expected_metadata_file: PathBuf = self.test_base.clone().to_path_buf();
             expected_metadata_file.push(format!("{}.metadata", file_base_name.to_str().unwrap()));
             expected_metadata_file.set_extension("txt");
-            let expectedMetadata_unfinished = if expected_metadata_file.exists() {
+            let expected_metadata_unfinished = if expected_metadata_file.exists() {
                 java_properties::read(
                     std::fs::File::open(expected_metadata_file)
                         .expect("file exists, we already know that"),
@@ -184,7 +184,7 @@ impl<T:Reader> AbstractBlackBoxTestCase<T>  {
                 HashMap::new()
             };
             let expected_metadata = HashMap::new();
-            for (k, v) in expectedMetadata_unfinished {
+            for (k, v) in expected_metadata_unfinished {
                 let new_k = RXingResultMetadataType::from(k);
                 let _new_v = match new_k {
                     RXingResultMetadataType::OTHER => RXingResultMetadataValue::OTHER(v),
@@ -230,7 +230,7 @@ impl<T:Reader> AbstractBlackBoxTestCase<T>  {
 
             for x in 0..test_count {
                 // for (int x = 0; x < testCount; x++) {
-                let rotation = self.test_rxing_results.get(x).unwrap().getRotation();
+                let rotation = self.test_rxing_results.get(x).unwrap().get_rotation();
                 let rotated_image = Self::rotate_image(&image, rotation);
                 let source = BufferedImageLuminanceSource::new(rotated_image);
                 let bitmap = BinaryBitmap::new(Box::new(HybridBinarizer::new(Box::new(source))));
@@ -296,13 +296,13 @@ impl<T:Reader> AbstractBlackBoxTestCase<T>  {
             let test_rxing_result = self.test_rxing_results.get(x).unwrap();
             log::info(format!(
                 "Rotation {} degrees:",
-                test_rxing_result.getRotation()
+                test_rxing_result.get_rotation()
             ));
             log::info(format!(
                 " {} of {} images passed ({} required)",
                 passed_counts[x],
                 image_files.len(),
-                test_rxing_result.getMustPassCount()
+                test_rxing_result.get_must_pass_count()
             ));
             let mut failed = image_files.len() - passed_counts[x];
             log::info(format!(
@@ -314,7 +314,7 @@ impl<T:Reader> AbstractBlackBoxTestCase<T>  {
                 " {} of {} images passed with try harder ({} required)",
                 try_harder_counts[x],
                 image_files.len(),
-                test_rxing_result.getTryHarderCount()
+                test_rxing_result.get_try_harder_count()
             ));
             failed = image_files.len() - try_harder_counts[x];
             log::info(format!(
@@ -324,18 +324,18 @@ impl<T:Reader> AbstractBlackBoxTestCase<T>  {
             ));
             total_found += passed_counts[x] + try_harder_counts[x];
             total_must_pass +=
-                test_rxing_result.getMustPassCount() + test_rxing_result.getTryHarderCount();
+                test_rxing_result.get_must_pass_count() + test_rxing_result.get_try_harder_count();
             total_misread += misread_counts[x] + try_harder_misread_counts[x];
             total_max_misread +=
-                test_rxing_result.getMaxMisreads() + test_rxing_result.getMaxTryHarderMisreads();
+                test_rxing_result.get_max_misreads() + test_rxing_result.get_max_try_harder_misreads();
         }
 
-        let totalTests = image_files.len() * test_count * 2;
+        let total_tests = image_files.len() * test_count * 2;
         log::info(format!(
             "Decoded {} images out of {} ({}, {} required)",
             total_found,
-            totalTests,
+            total_tests,
-            total_found * 100 / totalTests,
+            total_found * 100 / total_tests,
             total_must_pass
         ));
         if total_found > total_must_pass as usize {
@@ -365,32 +365,32 @@ impl<T:Reader> AbstractBlackBoxTestCase<T>  {
         // Then run through again and assert if any failed
         for x in 0..test_count {
             // for (int x = 0; x < testCount; x++) {
-            let testRXingResult = self.test_rxing_results.get(x).unwrap();
+            let test_rxing_result = self.test_rxing_results.get(x).unwrap();
             let label = format!(
                 "Rotation {} degrees: Too many images failed",
-                testRXingResult.getRotation()
+                test_rxing_result.get_rotation()
             );
             assert!(
-                passed_counts[x] >= testRXingResult.getMustPassCount() as usize,
+                passed_counts[x] >= test_rxing_result.get_must_pass_count() as usize,
                 "{}",
                 label
             );
             assert!(
-                try_harder_counts[x] >= testRXingResult.getTryHarderCount() as usize,
+                try_harder_counts[x] >= test_rxing_result.get_try_harder_count() as usize,
                 "Try harder, {}",
                 label,
             );
             let label = format!(
                 "Rotation {} degrees: Too many images misread",
-                testRXingResult.getRotation()
+                test_rxing_result.get_rotation()
             );
             assert!(
-                misread_counts[x] <= testRXingResult.getMaxMisreads() as usize,
+                misread_counts[x] <= test_rxing_result.get_max_misreads() as usize,
                 "{}",
                 label
             );
             assert!(
-                try_harder_misread_counts[x] <= testRXingResult.getMaxTryHarderMisreads() as usize,
+                try_harder_misread_counts[x] <= test_rxing_result.get_max_try_harder_misreads() as usize,
                 "Try harder, {}",
                 label
             );
@@ -419,13 +419,13 @@ impl<T:Reader> AbstractBlackBoxTestCase<T>  {
 
         // Try in 'pure' mode mostly to exercise PURE_BARCODE code paths for exceptions;
         // not expected to pass, generally
-        let mut result = None;
+        // let mut result = None;
         let mut pure_hints = HashMap::new();
         pure_hints.insert(
             DecodeHintType::PURE_BARCODE,
             DecodeHintValue::PureBarcode(true),
         );
-        result = if let Ok(res) = self.barcode_reader.decode_with_hints(source, &pure_hints) {
+        let mut result = if let Ok(res) = self.barcode_reader.decode_with_hints(source, &pure_hints) {
             Some(res)
         } else {
             None

tests/common/mod.rs

@@ -1,5 +1,5 @@
-mod TestResult;
+mod test_result;
 mod abstract_black_box_test_case;
 
-pub use TestResult::*;
+pub use test_result::*;
 pub use abstract_black_box_test_case::*;

tests/common/test_result.rs

@@ -42,23 +42,23 @@ impl TestRXingResult {
         }
     }
 
-    pub fn getMustPassCount(&self) -> u32 {
+    pub fn get_must_pass_count(&self) -> u32 {
         self.must_pass_count
     }
 
-    pub fn getTryHarderCount(&self) -> u32 {
+    pub fn get_try_harder_count(&self) -> u32 {
         self.try_harder_count
     }
 
-    pub fn getMaxMisreads(&self) -> u32 {
+    pub fn get_max_misreads(&self) -> u32 {
         self.max_misreads
     }
 
-    pub fn getMaxTryHarderMisreads(&self) -> u32 {
+    pub fn get_max_try_harder_misreads(&self) -> u32 {
         self.max_try_harder_misreads
     }
 
-    pub fn getRotation(&self) -> f32 {
+    pub fn get_rotation(&self) -> f32 {
         self.rotation
     }
 }

tests/maxicode_blackbox_tests.rs

@@ -29,9 +29,9 @@ fn maxicode1_test_case() {
         BarcodeFormat::MAXICODE,
     );
     // super("src/test/resources/blackbox/maxicode-1", new MultiFormatReader(), BarcodeFormat.MAXICODE);
-    tester.addTest(6, 6, 0.0);
+    tester.add_test(6, 6, 0.0);
 
-    tester.testBlackBox();
+    tester.test_black_box();
 }
 
 /**
@@ -48,12 +48,12 @@ fn maxi_code_black_box1_test_case() {
         BarcodeFormat::MAXICODE,
     );
     // super("src/test/resources/blackbox/maxicode-1", new MultiFormatReader(), BarcodeFormat.MAXICODE);
-    tester.addHint(
+    tester.add_hint(
         DecodeHintType::PURE_BARCODE,
         rxing::DecodeHintValue::PureBarcode(true),
     );
 
-    tester.addTest(1, 1, 0.0);
+    tester.add_test(1, 1, 0.0);
 
-    tester.testBlackBox();
+    tester.test_black_box();
 }

tests/qr_code_blackbox_tests.rs

@@ -30,12 +30,12 @@ fn qrcode_black_box1_test_case() {
         rxing::BarcodeFormat::QR_CODE,
     );
     // super("src/test/resources/blackbox/qrcode-1", new MultiFormatReader(), BarcodeFormat.QR_CODE);
-    tester.addTest(17, 17, 0.0);
+    tester.add_test(17, 17, 0.0);
-    tester.addTest(14, 14, 90.0);
+    tester.add_test(14, 14, 90.0);
-    tester.addTest(17, 17, 180.0);
+    tester.add_test(17, 17, 180.0);
-    tester.addTest(14, 14, 270.0);
+    tester.add_test(14, 14, 270.0);
 
-    tester.testBlackBox();
+    tester.test_black_box();
 }
 
 /**
@@ -49,12 +49,12 @@ fn qrcode_black_box2_test_case() {
         QRCodeReader {},
         BarcodeFormat::QR_CODE,
     );
-    tester.addTest(31, 31, 0.0);
+    tester.add_test(31, 31, 0.0);
-    tester.addTest(30, 30, 90.0);
+    tester.add_test(30, 30, 90.0);
-    tester.addTest(30, 30, 180.0);
+    tester.add_test(30, 30, 180.0);
-    tester.addTest(30, 30, 270.0);
+    tester.add_test(30, 30, 270.0);
 
-    tester.testBlackBox();
+    tester.test_black_box();
 }
 
 /**
@@ -68,12 +68,12 @@ fn qrcode_black_box3_test_case() {
         QRCodeReader {},
         BarcodeFormat::QR_CODE,
     );
-    tester.addTest(38, 38, 0.0);
+    tester.add_test(38, 38, 0.0);
-    tester.addTest(39, 39, 90.0);
+    tester.add_test(39, 39, 90.0);
-    tester.addTest(36, 36, 180.0);
+    tester.add_test(36, 36, 180.0);
-    tester.addTest(39, 39, 270.0);
+    tester.add_test(39, 39, 270.0);
 
-    tester.testBlackBox();
+    tester.test_black_box();
 }
 
 /**
@@ -89,12 +89,12 @@ fn qrcode_black_box4_test_case() {
         QRCodeReader {},
         BarcodeFormat::QR_CODE,
     );
-    tester.addTest(36, 36, 0.0);
+    tester.add_test(36, 36, 0.0);
-    tester.addTest(35, 35, 90.0);
+    tester.add_test(35, 35, 90.0);
-    tester.addTest(35, 35, 180.0);
+    tester.add_test(35, 35, 180.0);
-    tester.addTest(35, 35, 270.0);
+    tester.add_test(35, 35, 270.0);
 
-    tester.testBlackBox();
+    tester.test_black_box();
 }
 
 /**
@@ -112,12 +112,12 @@ fn qrcode_black_box5_test_case() {
         QRCodeReader {},
         BarcodeFormat::QR_CODE,
     );
-    tester.addTest(19, 19, 0.0);
+    tester.add_test(19, 19, 0.0);
-    tester.addTest(19, 19, 90.0);
+    tester.add_test(19, 19, 90.0);
-    tester.addTest(19, 19, 180.0);
+    tester.add_test(19, 19, 180.0);
-    tester.addTest(19, 19, 270.0);
+    tester.add_test(19, 19, 270.0);
 
-    tester.testBlackBox();
+    tester.test_black_box();
 }
 
 /**
@@ -132,10 +132,10 @@ fn qrcode_black_box6_test_case() {
         QRCodeReader {},
         BarcodeFormat::QR_CODE,
     );
-    tester.addTest(15, 15, 0.0);
+    tester.add_test(15, 15, 0.0);
-    tester.addTest(14, 14, 90.0);
+    tester.add_test(14, 14, 90.0);
-    tester.addTest(13, 13, 180.0);
+    tester.add_test(13, 13, 180.0);
-    tester.addTest(14, 14, 270.0);
+    tester.add_test(14, 14, 270.0);
 
-    tester.testBlackBox();
+    tester.test_black_box();
 }