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 examples 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 <QApplication>
52#include <QGraphicsScene>
53#include <QGraphicsView>
54
55#include "coloritem.h"
56#include "robot.h"
57
58#include <cmath>
59
60
61class GraphicsView : public QGraphicsView
62{
63public:
64 using QGraphicsView::QGraphicsView;
65
66protected:
67 void resizeEvent(QResizeEvent *) override
68 {
69 }
70};
71
72//! [0]
73int main(int argc, char **argv)
74{
75 QApplication app(argc, argv);
76
77//! [0]
78//! [1]
79 QGraphicsScene scene(-200, -200, 400, 400);
80
81 for (int i = 0; i < 10; ++i) {
82 ColorItem *item = new ColorItem;
83 item->setPos(::sin((i * 6.28) / 10.0) * 150,
84 ::cos((i * 6.28) / 10.0) * 150);
85
86 scene.addItem(item);
87 }
88
89 Robot *robot = new Robot;
90 robot->setTransform(QTransform::fromScale(1.2, 1.2), true);
91 robot->setPos(0, -20);
92 scene.addItem(robot);
93//! [1]
94//! [2]
95 GraphicsView view(&scene);
96 view.setRenderHint(QPainter::Antialiasing);
97 view.setViewportUpdateMode(QGraphicsView::BoundingRectViewportUpdate);
98 view.setBackgroundBrush(QColor(230, 200, 167));
99 view.setWindowTitle("Drag and Drop Robot");
100 view.show();
101
102 return app.exec();
103}
104//! [2]
105