wip: cleanup

src/common/StringUtilsTestCase.rs

@@ -26,7 +26,7 @@
 use rand::Rng;
 use std::collections::HashMap;
 
-use crate::common::StringUtils;
+use crate::common::string_utils;
 
 use super::CharacterSet;
 
@@ -40,7 +40,7 @@ fn test_random() {
     // }
     assert_eq!(
         CharacterSet::UTF8,
-        StringUtils::guessCharset(&bytes, &HashMap::new()).unwrap()
+        string_utils::guessCharset(&bytes, &HashMap::new()).unwrap()
     );
 }
 
@@ -97,8 +97,8 @@ fn test_utf16_le() {
 }
 
 fn do_test(bytes: &[u8], charset: CharacterSet, encoding: &str) {
-    let guessedCharset = StringUtils::guessCharset(bytes, &HashMap::new()).unwrap();
-    let guessedEncoding = StringUtils::guessEncoding(bytes, &HashMap::new()).unwrap();
+    let guessedCharset = string_utils::guessCharset(bytes, &HashMap::new()).unwrap();
+    let guessedEncoding = string_utils::guessEncoding(bytes, &HashMap::new()).unwrap();
     assert_eq!(charset, guessedCharset);
     assert_eq!(encoding, guessedEncoding);
 }

src/common/adaptive_threshold_binarizer.rs

@@ -39,8 +39,7 @@ impl<LS: LuminanceSource> AdaptiveThresholdBinarizer<LS> {
             buff
         };
 
-        let filtered_iamge =
-            imageproc::contrast::adaptive_threshold(&image_buffer, self.radius);
+        let filtered_iamge = imageproc::contrast::adaptive_threshold(&image_buffer, self.radius);
 
         let dynamic_filtered = DynamicImage::from(filtered_iamge);
 

src/common/bit_array.rs

@@ -37,27 +37,35 @@ const BASE_BITS: usize = super::BIT_FIELD_BASE_BITS;
 pub struct BitArray {
     bits: Vec<BaseType>,
     size: usize,
+    read_offset: usize,
 }
 
 impl BitArray {
     pub fn new() -> Self {
-        Self {
-            bits: Vec::new(),
-            size: 0,
-        }
+        // Self {
+        //     bits: Vec::new(),
+        //     size: 0,
+        //     read_offset: 0,
+        // }
+        Self::default()
     }
 
     pub fn with_size(size: usize) -> Self {
         Self {
             bits: makeArray(size),
             size,
+            read_offset: 0,
         }
     }
 
     /// For testing only
     #[cfg(test)]
     pub fn with_initial_values(bits: Vec<BaseType>, size: usize) -> Self {
-        Self { bits, size }
+        Self {
+            bits,
+            size,
+            read_offset: 0,
+        }
     }
 
     pub fn get_size(&self) -> usize {
@@ -429,3 +437,39 @@ impl From<&BitArray> for Vec<bool> {
 fn makeArray(size: usize) -> Vec<BaseType> {
     vec![0; (size + BASE_BITS - 1) / BASE_BITS]
 }
+
+impl std::io::Read for BitArray {
+    fn read(&mut self, buf: &mut [u8]) -> std::io::Result<usize> {
+        let size = self.size;
+        let desired = buf.len();
+        let current_offset = self.read_offset;
+
+        let available = size - current_offset;
+
+        let to_read = if desired <= available {
+            desired
+        } else {
+            available
+        };
+
+        self.toBytes(current_offset, buf, 0, to_read);
+
+        self.read_offset = current_offset + to_read;
+
+        Ok(to_read)
+    }
+}
+
+impl std::io::Write for BitArray {
+    fn write(&mut self, buf: &[u8]) -> std::io::Result<usize> {
+        for byte in buf {
+            self.appendBits(*byte as BaseType, 8)
+                .map_err(|e| std::io::Error::new(std::io::ErrorKind::Other, e.to_string()))?
+        }
+        Ok(buf.len())
+    }
+
+    fn flush(&mut self) -> std::io::Result<()> {
+        Ok(())
+    }
+}

src/common/bit_matrix.rs

@@ -77,10 +77,7 @@ impl BitMatrix {
             width,
             height,
             row_size: ((width as usize + BASE_BITS - 1) / BASE_BITS),
-            bits: vec![
-                0;
-                ((width as usize + BASE_BITS - 1) / BASE_BITS) * height as usize
-            ],
+            bits: vec![0; ((width as usize + BASE_BITS - 1) / BASE_BITS) * height as usize],
         })
         // this.width = width;
         // this.height = height;

src/common/cpp_essentials/base_extentions/bitmatrix.rs

@@ -1,4 +1,3 @@
-
 use crate::common::BitMatrix;
 use crate::common::Result;
 use crate::point_f;

src/common/cpp_essentials/util.rs

@@ -1,6 +1,5 @@
 use std::iter::Sum;
 
-
 use crate::common::Result;
 use crate::qrcode::cpp_port::detector::AppendBit;
 use crate::{Exceptions, Point};

src/common/eci_string_builder.rs

@@ -26,7 +26,7 @@ use std::{
     fmt::{self},
 };
 
-use super::{CharacterSet, Eci, StringUtils};
+use super::{string_utils, CharacterSet, Eci};
 
 /**
  * Class that converts a sequence of ECIs and bytes into a string
@@ -220,7 +220,7 @@ impl ECIStringBuilder {
             }
 
             else */
-            if let Some(found_encoding) = StringUtils::guessCharset(bytes, &HashMap::default()) {
+            if let Some(found_encoding) = string_utils::guessCharset(bytes, &HashMap::default()) {
                 if let Ok(found_encoded_str) = found_encoding.decode(bytes) {
                     encoded_string.push_str(&found_encoded_str);
                     not_encoded_yet = false;

src/common/mod.rs

@@ -18,8 +18,7 @@ mod BitSourceTestCase;
 #[cfg(test)]
 mod PerspectiveTransformTestCase;
 
-mod string_utils;
-pub use string_utils::*;
+pub mod string_utils;
 
 mod bit_array;
 pub use bit_array::*;

src/common/string_utils.rs

@@ -24,19 +24,6 @@ use super::CharacterSet;
  * @author Sean Owen
  * @author Alex Dupre
  */
-pub struct StringUtils {
-    //   private static final Charset PLATFORM_DEFAULT_ENCODING = Charset.defaultCharset();
-    //   public static final Charset SHIFT_JIS_CHARSET = Charset.forName("SJIS");
-    //   public static final Charset GB2312_CHARSET = Charset.forName("GB2312");
-    //   private static final Charset EUC_JP = Charset.forName("EUC_JP");
-    //   private static final boolean ASSUME_SHIFT_JIS =
-    //       SHIFT_JIS_CHARSET.equals(PLATFORM_DEFAULT_ENCODING) ||
-    //       EUC_JP.equals(PLATFORM_DEFAULT_ENCODING);
-
-    //   // Retained for ABI compatibility with earlier versions
-    //   public static final String SHIFT_JIS = "SJIS";
-    //   public static final String GB2312 = "GB2312";
-}
 
 // const PLATFORM_DEFAULT_ENCODING: &dyn Encoding = encoding::all::UTF_8;
 // const SHIFT_JIS_CHARSET: &dyn Encoding =
@@ -48,13 +35,12 @@ const ASSUME_SHIFT_JIS: bool = false;
 // static SHIFT_JIS: &'static str = "SJIS";
 // static GB2312: &'static str = "GB2312";
 
-pub static SHIFT_JIS_CHARSET: CharacterSet = CharacterSet::Shift_JIS;
+pub const SHIFT_JIS_CHARSET: CharacterSet = CharacterSet::Shift_JIS;
 
 //    private static final boolean ASSUME_SHIFT_JIS =
 //        SHIFT_JIS_CHARSET.equals(PLATFORM_DEFAULT_ENCODING) ||
 //        EUC_JP.equals(PLATFORM_DEFAULT_ENCODING);
 
-impl StringUtils {
 /**
  * @param bytes bytes encoding a string, whose encoding should be guessed
  * @param hints decode hints if applicable
@@ -63,7 +49,7 @@ impl StringUtils {
  *  of these can possibly be correct
  */
 pub fn guessEncoding(bytes: &[u8], hints: &DecodingHintDictionary) -> Option<&'static str> {
-        let c = StringUtils::guessCharset(bytes, hints)?;
+    let c = guessCharset(bytes, hints)?;
     if c == CharacterSet::Shift_JIS {
         Some("SJIS")
     } else if c == CharacterSet::UTF8 {
@@ -85,8 +71,7 @@ impl StringUtils {
  *  none of these can possibly be correct
  */
 pub fn guessCharset(bytes: &[u8], hints: &DecodingHintDictionary) -> Option<CharacterSet> {
-        if let Some(DecodeHintValue::CharacterSet(cs_name)) =
-            hints.get(&DecodeHintType::CHARACTER_SET)
+    if let Some(DecodeHintValue::CharacterSet(cs_name)) = hints.get(&DecodeHintType::CHARACTER_SET)
     {
         return CharacterSet::get_character_set_by_name(cs_name);
     }
@@ -253,4 +238,3 @@ impl StringUtils {
     // Otherwise, we take a wild guess with platform encoding
     Some(CharacterSet::UTF8)
 }
-}

src/qrcode/decoder/decoded_bit_stream_parser.rs

@@ -16,7 +16,7 @@
 
 use crate::{
     common::{
-        BitSource, CharacterSet, DecoderRXingResult, ECIStringBuilder, Eci, Result, StringUtils,
+        string_utils, BitSource, CharacterSet, DecoderRXingResult, ECIStringBuilder, Eci, Result,
     },
     DecodingHintDictionary, Exceptions,
 };
@@ -305,7 +305,7 @@ fn decodeByteSegment(
         // give a hint.
         {
             #[cfg(not(feature = "allow_forced_iso_ied_18004_compliance"))]
-            StringUtils::guessCharset(&readBytes, hints).ok_or(Exceptions::ILLEGAL_STATE)?
+            string_utils::guessCharset(&readBytes, hints).ok_or(Exceptions::ILLEGAL_STATE)?
         }
 
         #[cfg(feature = "allow_forced_iso_ied_18004_compliance")]