https://github.com/Dax89/QHexView

A versatile Hexadecimal widget for Qt5
https://github.com/Dax89/QHexView

c-plus-plus hex-editor hexedit-widget qt qt-widgets qt5

Last synced: about 2 months ago
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A versatile Hexadecimal widget for Qt5

• Host: GitHub
• URL: https://github.com/Dax89/QHexView
• Owner: Dax89
• License: mit
• Created: 2013-12-29T14:17:16.000Z (almost 11 years ago)
• Default Branch: 5.0
• Last Pushed: 2024-01-03T22:47:42.000Z (9 months ago)
• Last Synced: 2024-07-27T05:37:38.145Z (2 months ago)
• Topics: c-plus-plus, hex-editor, hexedit-widget, qt, qt-widgets, qt5
• Language: C++
• Homepage:
• Size: 841 KB
• Stars: 316
• Watchers: 27
• Forks: 100
• Open Issues: 3
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        


 





 An hexadecimal widget for Qt5

 


 


 


  

  


  

  

    

    

 



    

Features

-----

- Document/View based

- Unlimited Undo/Redo

- Fully Customizable

- Fast rendering

- Easy to Use


Backends

-----

These are the available buffer backends:

- *QMemoryBuffer*: A simple, flat memory

- *QMemoryRefBuffer*: QHexView just display the referenced data, editing is disabled

- *QDeviceBuffer*: A read-only view for QIODevice 

- *QMappedFileBuffer*: MMIO wrapper for QFile

It's also possible to create new data backends from scratch.

Usage

-----

Data is managed by QHexView through QHexDocument class.


It's possible to load a generic QIODevice with QHexDocument's method `fromDevice()` with various buffer backends.


Helper methods are provided in order to load a QFile as In-Memory buffer:


```cpp

#include 

QHexOptions options;

options.grouplength = 2; // Pack bytes as AABB

options.bytecolors[0x00] = {Qt::lightGray, QColor()}; // Highlight '00's

options.bytecolors[0xFF] = {Qt::darkBlue, QColor()};  // Highlight 'FF's

hexview.setOptions(options);

QHexDocument* document = QHexDocument::fromMemory(bytearray); /* Load data from In-Memory Buffer... */

//QHexDocument* document = QHexDocument::fromDevice(iodevice); /* ...from a generic I/O device... */

//QHexDocument* document = QHexDocument::fromFile("data.bin"); /* ...or from File... */

QHexView* hexview = new QHexView();

hexview->setDocument(document);                  // Associate QHexEditData with this QHexEdit (ownership is not changed)

// Document editing

QByteArray data = document->read(24, 78);        // Read 78 bytes starting to offset 24

document->insert(4, "Hello QHexEdit");           // Insert a string to offset 4 

document->remove(6, 10);                         // Delete bytes from offset 6 to offset 10 

document->replace(30, "New Data");               // Replace bytes from offset 30 with the string "New Data"

// Metatadata management (available from QHexView too)

hexview->setBackground(5, 10, Qt::Red);         // Highlight background at offset range [5, 10)

hexview->setForeground(15, 30, Qt::darkBLue);   // Highlight background at offset range [15, 30)

hexview->setComment(12, 42, "I'm a comment!");  // Add a comment at offset range [12, 42)

hexview->unhighlight();                         // Reset highlighting

hexview->clearMetadata();                       // Reset all styles

```