1/****************************************************************************
2**
3** Copyright (C) 2016 The Qt Company Ltd.
4** Contact: https://www.qt.io/licensing/
5**
6** This file is part of the demonstration applications of the Qt Toolkit.
7**
8** $QT_BEGIN_LICENSE:BSD$
9** Commercial License Usage
10** Licensees holding valid commercial Qt licenses may use this file in
11** accordance with the commercial license agreement provided with the
12** Software or, alternatively, in accordance with the terms contained in
13** a written agreement between you and The Qt Company. For licensing terms
14** and conditions see https://www.qt.io/terms-conditions. For further
15** information use the contact form at https://www.qt.io/contact-us.
16**
17** BSD License Usage
18** Alternatively, you may use this file under the terms of the BSD license
19** as follows:
20**
21** "Redistribution and use in source and binary forms, with or without
22** modification, are permitted provided that the following conditions are
23** met:
24** * Redistributions of source code must retain the above copyright
25** notice, this list of conditions and the following disclaimer.
26** * Redistributions in binary form must reproduce the above copyright
27** notice, this list of conditions and the following disclaimer in
28** the documentation and/or other materials provided with the
29** distribution.
30** * Neither the name of The Qt Company Ltd nor the names of its
31** contributors may be used to endorse or promote products derived
32** from this software without specific prior written permission.
33**
34**
35** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
36** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
37** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
38** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
39** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
40** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
41** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
42** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
43** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
44** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
45** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
46**
47** $QT_END_LICENSE$
48**
49****************************************************************************/
50
51#include "customproxy.h"
52#include "embeddeddialog.h"
53
54#include <QApplication>
55#include <QGraphicsScene>
56#include <QGraphicsView>
57
58int main(int argc, char *argv[])
59{
60 Q_INIT_RESOURCE(embeddeddialogs);
61 QApplication app(argc, argv);
62
63 QGraphicsScene scene;
64 scene.setStickyFocus(true);
65 const int gridSize = 10;
66
67 for (int y = 0; y < gridSize; ++y) {
68 for (int x = 0; x < gridSize; ++x) {
69 CustomProxy *proxy = new CustomProxy(nullptr, Qt::Window);
70 proxy->setWidget(new EmbeddedDialog);
71
72 QRectF rect = proxy->boundingRect();
73
74 proxy->setPos(ax: x * rect.width() * 1.05, ay: y * rect.height() * 1.05);
75 proxy->setCacheMode(mode: QGraphicsItem::DeviceCoordinateCache);
76
77 scene.addItem(item: proxy);
78 }
79 }
80 scene.setSceneRect(scene.itemsBoundingRect());
81
82 QGraphicsView view(&scene);
83 view.scale(sx: 0.5, sy: 0.5);
84 view.setRenderHints(view.renderHints() | QPainter::Antialiasing | QPainter::SmoothPixmapTransform);
85 view.setBackgroundBrush(QPixmap(":/No-Ones-Laughing-3.jpg"));
86 view.setViewportUpdateMode(QGraphicsView::BoundingRectViewportUpdate);
87 view.show();
88 view.setWindowTitle("Embedded Dialogs Example");
89 return app.exec();
90}
91

source code of qtbase/examples/widgets/graphicsview/embeddeddialogs/main.cpp