Loading images in QTextBrowser

[wysota]

Quoting the docs:

Images
Images in QTextDocument are represented by text fragments that reference external images via the resource mechanism. Images are created using the cursor interface, and can be modified later by changing the character format of the image's text fragment:

if (fragment.isValid()) {
    QTextImageFormat newImageFormat = fragment.charFormat().toImageFormat();
 
    if (newImageFormat.isValid()) {
        newImageFormat.setName(":/images/newimage.png");
        QTextCursor helper = cursor;
 
        helper.setPosition(fragment.position());
        helper.setPosition(fragment.position() + fragment.length(),
                            QTextCursor::KeepAnchor);
        helper.setCharFormat(newImageFormat);
    }
}

if (fragment.isValid()) {
    QTextImageFormat newImageFormat = fragment.charFormat().toImageFormat();

    if (newImageFormat.isValid()) {
        newImageFormat.setName(":/images/newimage.png");
        QTextCursor helper = cursor;

        helper.setPosition(fragment.position());
        helper.setPosition(fragment.position() + fragment.length(),
                            QTextCursor::KeepAnchor);
        helper.setCharFormat(newImageFormat);
    }
}

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The fragment that represents the image can be found by iterating over the fragments in the text block that contains the image.