main.cpp

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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
#include <QApplication>
#include <QTextBlock>
#include <QTextEdit>
 
QString tr(const char *text)
{
    return QApplication::translate(text, text);
}
 
int main(int argc, char *argv[])
{
    QApplication app(argc, argv);
    QTextEdit *editor = new QTextEdit;
 
    QTextDocument *document = new QTextDocument(editor);
    QTextCursor cursor(document);
 
    QTextImageFormat imageFormat;
    imageFormat.setName(":/images/advert.png");
    cursor.insertImage(imageFormat);
 
    QTextBlock block = cursor.block();
    QTextFragment fragment;
    QTextBlock::iterator it;
 
    for (it = block.begin(); !(it.atEnd()); ++it) {
        fragment = it.fragment();
 
        if (fragment.contains(cursor.position()))
            break;
    }
 
    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);
        }
    }
 
    cursor.insertBlock();
    cursor.insertText("Code less. Create more.");
 
    editor->setDocument(document);
    editor->setWindowTitle(tr("Text Document Image Format"));
    editor->resize(320, 480);
    editor->show();
 
    return app.exec();
}