### Install rxing-cli

Source: https://github.com/rxing-core/rxing/blob/main/crates/cli/README.md

Install the rxing-cli tool using cargo.

```bash
cargo install rxing-cli
```

--------------------------------

### Immutable QR Code Reader with Lazy Static Initialization

Source: https://github.com/rxing-core/rxing/blob/main/README.md

This example demonstrates how to use an immutable QR code reader with lazy static initialization. This approach is suitable for scenarios where the reader is used frequently and thread-safety is required. Note that not all readers implement the ImmutableReader trait.

```rust
use rxing::qrcode::QRCodeReader;
use rxing::common::HybridBinarizer;
use rxing::common::Luma8LuminanceSource;
use rxing::BinaryBitmap;
use lazy_static::lazy_static::Lazy;

static LAZY_STATIC_QR_READER: Lazy<QRCodeReader> = Lazy::new(QRCodeReader::default);

fn main() {
    // Assuming luma_data, width, and height are defined elsewhere
    // let luma_data: &[u8] = ...;
    // let width: u32 = ...;
    // let height: u32 = ...;
    
    // let result = LAZY_STATIC_QR_READER.immutable_decode(
    //     &mut BinaryBitmap::new(
    //         HybridBinarizer::new(
    //             Luma8LuminanceSource::new(luma_data, width, height),
    // )));
}
```

--------------------------------

### Get Display Title

Source: https://github.com/rxing-core/rxing/blob/main/test_resources/blackbox/aztec-2/17.txt

Returns the title to be displayed for the URI result.

```Java
public int getDisplayTitle() {
    return R.string.result_uri;
  }
```

--------------------------------

### CLI Help Commands

Source: https://github.com/rxing-core/rxing/blob/main/crates/cli/README.md

Access help documentation for the rxing-cli tool and its subcommands.

```bash
rxing-cli help
```

```bash
rxing-cli help encode
```

```bash
rxing-cli help decode
```

--------------------------------

### Handle Button Click

Source: https://github.com/rxing-core/rxing/blob/main/test_resources/blackbox/aztec-2/17.txt

Handles the click event for the 'View Website' button. Opens the URI in a web browser.

```Java
public boolean handleButtonClick() {
    if (buttonId == R.id.button_view) {
      Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(getDisplayContents()));
      intent.addFlags(Intents.FLAG_ACTIVITY_CLEAR_WHEN_FINISH | Intents.FLAG_ACTIVITY_NEW_TASK);
      startActivity(intent);
      return true;
    }
    return false;
  }
```

--------------------------------

### URIRXingResultHandler Constructor

Source: https://github.com/rxing-core/rxing/blob/main/test_resources/blackbox/aztec-2/17.txt

Initializes the URIRXingResultHandler with the activity, intent, and barcode format.

```Java
URIRXingResultHandler(Activity activity, ZXingResult result, String type) {
    super(activity, result, type);
  }
```

--------------------------------

### Build HTML Table Function

Source: https://github.com/rxing-core/rxing/blob/main/test_resources/matrix_visualizer.html

Constructs an HTML table from a 2D boolean array. Adds event listeners for cell interaction and applies styling based on table dimensions.

```javascript
function build_table(input_array){
    // console.log(input_array);
    const root = document.getElementById("container");
    const new_table = document.createElement("table");
    const new_th = document.createElement("tr");
    new_table.appendChild(new_th);
    let column_count = 0;
    const row_count = input_array.length;
    for (let row_id = 0; row_id < input_array.length; row_id++){
        const row = input_array[row_id];
        const new_tr = document.createElement("tr");
        const new_row_head = document.createElement("th");
        new_row_head.innerText = row_id;
        new_tr.appendChild(new_row_head);
        for (let column_id = 0; column_id < row.length; column_id++){
            const new_td = document.createElement("td");
            new_td.innerText = row[column_id] ? 'X' : ' ';
            new_td.onclick=()=>{
                set_current_coord(row_id, column_id)
            };
            new_td.onmouseover=()=>{
                on_over(row_id, column_id)
            };
            new_td.onmouseout=()=>{
                on_out(row_id, column_id)
            };
            new_td.classList.add(style_column_addin+column_id);
            new_td.classList.add(style_row_addin+row_id);
            new_td.setAttribute("title", `(${row_id},${column_id})`);
            new_tr.appendChild(new_td);
            // console.log(column_id + " ->" + row[column_id] + "::" + new_td);
            column_count++;
        }
        new_table.appendChild(new_tr);
    }
    column_count = column_count / row_count;
    new_th.appendChild(document.createElement("th"));
    for ( let id = 0; id < column_count; id++){
        const new_child_node = document.createElement("th");
        new_child_node.innerText = id;
        new_th.appendChild(new_child_node);
    }
    if (column_count > 80) {
        new_table.classList.add("super_small");
    }
    root.replaceChildren(new_table);
}
```

--------------------------------

### Detect Multiple Barcodes in File

Source: https://github.com/rxing-core/rxing/blob/main/README.md

Use this helper function to detect all barcodes present in a given image file. Ensure the file exists and is a supported image format.

```rust
use rxing;

fn main() {
    let file_name = "test_image.jpg";

    let results = rxing::helpers::detect_multiple_in_file(file_name).expect("decodes");

    for result in results {
        println!("{} -> {}", result.getBarcodeFormat(), result.getText())
    }
}
```

--------------------------------

### URI Result Handler Implementation

Source: https://github.com/rxing-core/rxing/blob/main/test_resources/blackbox/aztec-2/21.txt

This snippet shows the core implementation of the URIRXingResultHandler class, responsible for displaying URI results to the user and providing options to open the URI.

```Java
package com.google.zxing.client.android.result;

import android.app.Activity;
import android.content.Intent;
import android.net.Uri;
import android.util.Log;

import com.google.zxing.client.result.ParsedResult;
import com.google.zxing.client.result.URIParsedResult;
import com.google.zxing.client.android.Intents;

/**
 * Handles "HTTP" (and other types of) URIs. This class is responsible for
 * opening the URI in a browser, or showing it to the user in a "web page"
 * like format.
 *
 * @author dswitkin@google.com (Daniel Switkin)
 */
public final class URIRXingResultHandler extends ResultHandler {

  private static final String TAG = URIRXingResultHandler.class.getSimpleName();

  // Icons
  private static final int[] PHOTOS_புகES = {
      R.drawable.photos_icon,
      R.drawable.photos_icon
  };

  public URIRXingResultHandler(Activity activity, ParsedResult result) {
    super(activity, result);
  }

  @Override
  public CharSequence getDisplayContents() {
    // This is the content that is displayed to the user. It's just the URI.
    return ((URIParsedResult) getResult()).getURI();
  }

  @Override
  public int getDisplayTitle() {
    return R.string.result_uri;
  }

  @Override
  public int[] getAlternativePhotos() {
    // This is for the "More" button. It's not used here.
    return PHOTOS_புகES;
  }

  @Override
  public void handleProductSearch(String query) {
    // This is for product searches. Not used here.
    openProductSearch(query);
  }

  @Override
  public void handleCustomProductSearch(String query) {
    // This is for custom product searches. Not used here.
    openCustomProductSearch(query);
  }

  @Override
  public Intent getLaunchIntent() {
    // This is the intent that launches the activity when the user clicks the
    // "Open" button.
    URIParsedResult uriResult = (URIParsedResult) getResult();
    String uriString = uriResult.getURI();
    // If the URI is not a "web" URI, we can't open it in a browser.
    if (uriString.startsWith("http://") || uriString.startsWith("https://")) {
      Intent intent = new Intent(Intent.ACTION_VIEW);
      intent.addFlags(Intents.FLAG_NEW_ACTIVITY);
      try {
        intent.setData(Uri.parse(uriString));
        return intent;
      } catch (IllegalArgumentException iae) {
        // This can happen if the URI is malformed.
        Log.e(TAG, "Could not parse URI: " + uriString, iae);
        return null;
      }
    } else {
      // If it's not a web URI, we can't open it in a browser.
      return null;
    }
  }

  @Override
  public CharSequence getDisplayRemark() {
    // This is the remark that is displayed to the user. It's not used here.
    return null;
  }
}

```

--------------------------------

### URI Result Handler in Java

Source: https://github.com/rxing-core/rxing/blob/main/test_resources/blackbox/aztec-2/22.txt

This Java code snippet demonstrates the core logic for handling URI results within the ZXing Android application. It includes methods for parsing the URI and determining the appropriate action, such as launching a web browser.

```Java
package com.google.zxing.client.android.result;

import android.app.Activity;
import android.content.Intent;
import android.net.Uri;
import android.util.Log;

import com.google.zxing.client.result.ParsedResult;
import com.google.zxing.client.result.URIParsedResult;

/**
 * Handles "URI" (Uniform Resource Identifier) results.
 *
 * @author dswitkin@google.com (Daniel Switkin)
 */
public final class URIRXingResultHandler extends RXingResultHandler {

  private static final String TAG = URIRXingResultHandler.class.getSimpleName();

  public URIRXingResultHandler(Activity activity, ParsedResult result) {
    super(activity, result);
  }

  @Override
  public void handleContentsOfResult() {
    // This is a bit of a hack. We're using the same intent for web pages and
    // other kinds of URIs. The difference is that web pages have a "" prefix
    // and other URIs don't. We should probably use different intents.
    Intent intent = new Intent(Intent.ACTION_VIEW);
    String dataString = ((URIParsedResult) getResult()).getURI();
    // For certain kinds of URIs, we may want to show a confirmation dialog.
    // For example, for "tel:" URIs, we might want to ask if the user wants to
    // call the number.
    if (dataString.startsWith("mailto:")) {
      intent.setData(Uri.parse(dataString));
      // For mailto: URIs, we want to open the email client.
      try {
        startActivity(intent);
      } catch (ActivityNotFoundException e) {
        Log.e(TAG, "Could not begin email client.", e);
        // If the email client is not found, we can fall back to showing the
        // URI in a text view.
        showDefaultContents();
      }
    } else if (dataString.startsWith("geo:")) {
      // For geo: URIs, we want to open the map application.
      intent.setData(Uri.parse(dataString));
      try {
        startActivity(intent);
      } catch (ActivityNotFoundException e) {
        Log.e(TAG, "Could not begin map application.", e);
        showDefaultContents();
      }
    } else {
      // For other URIs, we want to open the web browser.
      intent.setData(Uri.parse(dataString));
      try {
        startActivity(intent);
      } catch (ActivityNotFoundException e) {
        Log.e(TAG, "Could not begin web browser.", e);
        showDefaultContents();
      }
    }
  }

  @Override
  protected void showDefaultContents() {
    // This is a fallback for when the URI cannot be opened in an external application.
    // It will display the URI in a text view.
    super.showDefaultContents();
  }

  @Override
  public int getDisplayTitle() {
    // This method returns the title to be displayed in the result screen.
    // For URI results, it should be "HTTP" or "HTTPS" if the URI starts with
    // "http://" or "https://", otherwise it should be "URI".
    return R.string.result_uri;
  }
}

```

--------------------------------

### Parse Text and Build Table Function

Source: https://github.com/rxing-core/rxing/blob/main/test_resources/matrix_visualizer.html

Triggers the parsing of raw text and subsequent table building. Retrieves values from input fields for true/false tokens.

```javascript
function parse_text() {
    const input = document.getElementById("raw_text").value;
    const true_value = document.getElementById("true_value").value;
    const false_value = document.getElementById("false_value").value;
    const parsed_text = token_text(input, true_value, false_value);
    build_table(parsed_text);
    // alert(input + " " + separator + " " + true_value + " " + false_value);
}
```

--------------------------------

### Decode Multiple Barcodes

Source: https://github.com/rxing-core/rxing/blob/main/crates/cli/README.md

Decode multiple barcodes from an image file by enabling the --decode-multi flag.

```bash
rxing-cli test_image.jpg decode --decode-multi
```

--------------------------------

### URIResultHandler Implementation

Source: https://github.com/rxing-core/rxing/blob/main/test_resources/blackbox/aztec-2/18.txt

This Java code snippet shows the core implementation of the URIResultHandler class, responsible for parsing and handling URI results from barcode scans. It extends ResultHandler.

```Java
package com.google.zxing.client.android.result;

import android.app.Activity;
import android.content.Intent;
import android.net.Uri;
import com.google.zxing.client.result.ParsedResult;
import com.google.zxing.client.result.URIParsedResult;

/**
 * @author vicchione@google.com (Nicholas Vicchione)
 */
public final class URIResultHandler extends ResultHandler {

  private static final String[] BUTTON_TEXTS = {
      "Open",
      "Copy"
  };

  public URIResultHandler(Activity activity, ParsedResult result) {
    super(activity, result);
  }

  @Override
  public int getButtonCount() {
    return BUTTON_TEXTS.length;
  }

  @Override
  public int getPrimaryButton() {
    return 0; // Open
  }

  @Override
  public CharSequence getDisplayContents() {
    return ((URIParsedResult) getResult()).getURI();
  }

  @Override
  public int getDisplayTitle() {
    return R.string.result_uri;
  }

  @Override
  public void handleButtonPress(int index) {
    URIParsedResult uriResult = (URIParsedResult) getResult());
    String uri = uriResult.getURI();

    switch (index) {
      case 0:
        Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(uri));
        // If the URI is not a valid HTTP/HTTPS URI, we might need to add a default scheme
        if (uri.startsWith("/")) {
          intent.setData(Uri.parse("http://" + uri));
        }
        startActivity(intent);
        break;
      case 1:
        copyToClipboard(uri);
        displayAlert(R.string.alert_contents_copied_to_clipboard);
        break;
      default:
        break;
    }
  }
}

```

--------------------------------

### Encode Barcode Data

Source: https://github.com/rxing-core/rxing/blob/main/crates/cli/README.md

Encode data into a barcode and save it to a file. Specify image dimensions and data content.

```bash
rxing-cli test_image.jpg encode --width 500 --height 500 --data "Sample Data and TEST Data" qrcode
```

--------------------------------

### Decode Barcode Data

Source: https://github.com/rxing-core/rxing/blob/main/crates/cli/README.md

Decode barcode data from an image file.

```bash
rxing-cli test_image.jpg decode
```

--------------------------------

### Token Text Parsing Function

Source: https://github.com/rxing-core/rxing/blob/main/test_resources/matrix_visualizer.html

Parses raw text into a 2D boolean array based on provided true and false value strings. Ensures true and false values have the same length.

```javascript
function token_text(raw_text, true_value, false_value) {
    const find_true = true_value;
    const find_false = false_value;
    if (find_true.length != find_false.length) {
        alert("Find must have same length");
        return;
    }
    const token_length = find_true.length;
    // if (((raw_text.length % find_true.length) != 0) || ((raw_text.length % find_false.length) != 0)) {
    // alert("bad matrix length");
    // return;
    // }
    let output_array = [];
    const split_text = raw_text.split("\n");
    for (const line in split_text) {
        // console.log("Line: '" + split_text[line] + "'");
        for (let index = 0; index < split_text[line].length; index += token_length) {
            const found_token = split_text[line].substring(index, index + token_length);
            // console.log(index + " -> " + found_token);
            if (output_array[line] == undefined) {
                output_array[line] = [];
            }
            output_array[line].push(found_token == find_true);
        }
    }
    // console.log(output_array);
    return output_array;
}
```

--------------------------------

### Table Cell Hover Interaction Functions

Source: https://github.com/rxing-core/rxing/blob/main/test_resources/matrix_visualizer.html

Handles mouseover and mouseout events for table cells to highlight corresponding row and column elements. Adds or removes a 'bg_color' class.

```javascript
const style_column_addin = "col_";
const style_row_addin = "row_";
function on_over(row,column){
    const elements = [...document.getElementsByClassName(style_column_addin+column),...document.getElementsByClassName(style_row_addin+row)];
    for( const el_id in elements ){
        const el = elements[el_id];
        el.classList.add("bg_color");
    }
}
function on_out(row,column){
    const elements = [...document.getElementsByClassName(style_column_addin+column),...document.getElementsByClassName(style_row_addin+row)];
    for( const el_id in elements ){
        const el = elements[el_id];
        el.classList.remove("bg_color");
    }
}
```

--------------------------------

### URIRXingResultHandler Java Code

Source: https://github.com/rxing-core/rxing/blob/main/test_resources/blackbox/aztec-2/19.txt

This snippet shows the core Java code for the URIRXingResultHandler class. It is responsible for processing URI results from barcode scans.

```java
package com.google.zxing.client.android.result;

import android.app.Activity;
import android.content.Intent;
import android.net.Uri;
import android.util.Log;

import com.google.zxing.client.android.Intents;
import com.google.zxing.client.result.ParsedResult;
import com.google.zxing.client.result.URIParsedResult;

/**
 * Handles "URI" (Uniform Resource Identifier) results.
 *
 * @author dswitkin@google.com (Daniel Switkin)
 */
public final class URIRXingResultHandler extends ResultHandler {

  private static final String TAG = URIRXingResultHandler.class.getSimpleName();

  public URIRXingResultHandler(Activity activity, ParsedResult result) {
    super(activity, result);
  }

  @Override
  public CharSequence getDisplayContents() {
    return ((URIParsedResult) getResult()).getURI();
  }

  @Override
  public int getDisplayTitle() {
    return com.google.zxing.client.android.R.string.result_uri;
  }

  @Override
  public void handleProductIdentity(Intent intent) {
    intent.putExtra(Intents.Scan.RESULT_DISPLAY_екст, getDisplayContents());
    putExtra(intent, Intents.Scan.RESULT_FORMAT, getResult().getBarcodeFormat());
    String type = getIntent().getType();
    if (type == null || type.startsWith("text/html")) {
      intent.putExtra(Intents.Scan.RESULT_TYPE, TYPE_URI);
    } else {
      intent.putExtra(Intents.Scan.RESULT_TYPE, TYPE_TEXT);
    }
  }

  @Override
  protected void showExtraDetailsInProductIdentity(Intent intent) {
    intent.putExtra(Intents.Scan.EXTRA_PRODUCT_ID, ((URIParsedResult) getResult()).getURI());
  }

  @Override
  public Intent getLaunchIntent() {
    Uri uri = Uri.parse(((URIParsedResult) getResult()).getURI());
    Intent intent = new Intent(Intents.Scan.ACTION_VIEW, uri);
    intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET);
    return intent;
  }
}

```

--------------------------------

### Set Current Coordinate Function

Source: https://github.com/rxing-core/rxing/blob/main/test_resources/matrix_visualizer.html

Updates the displayed row and column in the UI. Used to indicate the currently selected cell.

```javascript
function set_current_coord(row, column){
    document.getElementById("output_row").innerText = row;
    document.getElementById("output_column").innerText = column;
}
```

=== COMPLETE CONTENT === This response contains all available snippets from this library. No additional content exists. Do not make further requests.