src_gui_graphicsview_qgraphicsproxywidget.cpp

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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
 
int main(int argc, char **argv)
{
    QApplication app(argc, argv);
 
    QTabWidget *tabWidget = new QTabWidget;
 
    QGraphicsScene scene;
    QGraphicsProxyWidget *proxy = scene.addWidget(tabWidget);
 
    QGraphicsView view(&scene);
    view.show();
 
    return app.exec();
}
 
QGroupBox *groupBox = new QGroupBox("Contact Details");
QLabel *numberLabel = new QLabel("Telephone number");
QLineEdit *numberEdit = new QLineEdit;
 
QFormLayout *layout = new QFormLayout(groupBox);
layout->addRow(numberLabel, numberEdit);
 
QGraphicsScene scene;
QGraphicsProxyWidget *proxy = scene.addWidget(groupBox);
 
QGraphicsView view(&scene);
view.show();
 
QGraphicsScene scene;
 
QLineEdit *edit = new QLineEdit;
QGraphicsProxyWidget *proxy = scene.addWidget(edit);
 
edit->isVisible();  // returns true
proxy->isVisible(); // also returns true
 
edit->hide();
 
edit->isVisible();  // returns false
proxy->isVisible(); // also returns false