An hexadecimal widget for Qt5 and Qt6

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:

#include <QHexView/qhexview.h>

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<QMemoryBuffer>(bytearray); /* Load data from In-Memory Buffer... */
//QHexDocument* document = QHexDocument::fromDevice<QMemoryBuffer>(iodevice); /* ...from a generic I/O device... */
//QHexDocument* document = QHexDocument::fromFile<QMemoryBuffer>("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