fixed various bugs with encoding qrcodes

src/pdf417/encoder/dimensions.rs

@@ -19,6 +19,7 @@
  *
  * @author qwandor@google.com (Andrew Walbran)
  */
+#[derive(Copy, Clone, Eq, PartialEq)]
 pub struct Dimensions {
     minCols: usize,
     maxCols: usize,

src/qrcode/QRCodeWriterTestCase.rs

@@ -19,7 +19,8 @@ use std::{collections::HashMap, path::PathBuf};
 use image::DynamicImage;
 
 use crate::{
-    common::BitMatrix, qrcode::QRCodeWriter, BarcodeFormat, EncodeHintType, EncodeHintValue, Writer,
+    common::BitMatrix, qrcode::QRCodeWriter, BarcodeFormat, DecodeHintType, DecodeHintValue,
+    EncodeHintType, EncodeHintValue, Writer,
 };
 
 use super::decoder::ErrorCorrectionLevel;

src/qrcode/encoder/minimal_encoder.rs

@@ -1052,7 +1052,14 @@ impl RXingResultNode {
                 .encode_string(
                     // &self.stringToEncode[self.fromPosition as usize
                     //     ..(self.fromPosition + self.characterLength as usize)],
-                    self.stringToEncode.get(self.fromPosition).unwrap(),
+                    // self.stringToEncode.get(self.fromPosition).unwrap(),
+                    &(self
+                        .stringToEncode
+                        .iter()
+                        .skip(self.fromPosition)
+                        .take(self.characterLength as usize)
+                        .map(|s| s.as_str())
+                        .collect::<String>()),
                     self.charsetEncoderIndex,
                 )
                 .len() as u32
@@ -1080,7 +1087,13 @@ impl RXingResultNode {
             encoder::appendBytes(
                 // &self.stringToEncode[self.fromPosition as usize
                 //     ..(self.fromPosition + self.characterLength as usize)],
-                self.stringToEncode.get(self.fromPosition).unwrap(),
+                &(self
+                    .stringToEncode
+                    .iter()
+                    .skip(self.fromPosition)
+                    .take(self.characterLength as usize)
+                    .map(|s| s.as_str())
+                    .collect::<String>()), //self.stringToEncode.get(self.fromPosition).unwrap(),
                 self.mode,
                 bits,
                 self.encoders.getCharset(self.charsetEncoderIndex),