1/****************************************************************************
2**
3** Copyright (C) 2016 Klaralvdalens Datakonsult AB (KDAB).
4** Contact: https://www.qt.io/licensing/
5**
6** This file is part of the Qt3D module 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 "scene.h"
52
53#include <QGuiApplication>
54
55#include <Qt3DCore/qentity.h>
56#include <QtGui/QScreen>
57
58#include <QtWidgets/QApplication>
59#include <QtWidgets/QWidget>
60#include <QtWidgets/QHBoxLayout>
61#include <QtWidgets/QSlider>
62#include <QtWidgets/QLabel>
63#include <QtWidgets/QPushButton>
64
65#include <Qt3DRender/qcamera.h>
66#include <Qt3DInput/QInputAspect>
67#include <Qt3DExtras/qforwardrenderer.h>
68#include <Qt3DExtras/qt3dwindow.h>
69#include <Qt3DExtras/qfirstpersoncameracontroller.h>
70
71int main(int argc, char **argv)
72{
73 QApplication app(argc, argv);
74
75 Qt3DExtras::Qt3DWindow *view = new Qt3DExtras::Qt3DWindow();
76 view->defaultFrameGraph()->setClearColor(QColor(QRgb(0x4d4d4f)));
77 QWidget *container = QWidget::createWindowContainer(window: view);
78 QSize screenSize = view->screen()->size();
79 container->setMinimumSize(QSize(200, 100));
80 container->setMaximumSize(screenSize);
81
82 Qt3DInput::QInputAspect *input = new Qt3DInput::QInputAspect;
83 view->registerAspect(aspect: input);
84
85 // Root entity
86 Qt3DCore::QEntity *rootEntity = new Qt3DCore::QEntity();
87
88 // Camera
89 Qt3DRender::QCamera *cameraEntity = view->camera();
90
91 cameraEntity->setPosition(QVector3D(0, 0, 20.0f));
92 cameraEntity->setUpVector(QVector3D(0, 1, 0));
93 cameraEntity->setViewCenter(QVector3D(0, 0, 0));
94
95 // For camera controls
96 Qt3DExtras::QFirstPersonCameraController *camController = new Qt3DExtras::QFirstPersonCameraController(rootEntity);
97 camController->setCamera(cameraEntity);
98
99 // scene
100 Scene *scene = new Scene(rootEntity);
101
102 // Set root object of the scene
103 view->setRootEntity(rootEntity);
104
105 // 'Generate New' Button
106 QPushButton *genNewButton = new QPushButton();
107 genNewButton->setText("Generate New");
108 QObject::connect(sender: genNewButton, signal: &QPushButton::pressed, receiver: scene, slot: &Scene::redrawTexture);
109
110 // current size label
111 QLabel *sizeLabel = new QLabel();
112 sizeLabel->setText(QString("Current Size: 128x128"));
113
114 // 'Change Size' Slider
115 QSlider *changeSizeSlider = new QSlider();
116 changeSizeSlider->setOrientation(Qt::Horizontal);
117 changeSizeSlider->setMinimum(0);
118 changeSizeSlider->setMaximum(4);
119 QObject::connect(sender: changeSizeSlider, signal: &QSlider::valueChanged, slot: [scene, sizeLabel](int value) {
120 int sz = 128 << value;
121 scene->setSize(QSize(sz, sz));
122 sizeLabel->setText(QString("Current Size: %1x%1").arg(a: sz));
123 });
124
125 // create widget
126 QWidget *widget = new QWidget;
127 widget->setWindowTitle(QStringLiteral("QPaintedTexture Example"));
128
129 QVBoxLayout *hLayout = new QVBoxLayout(widget);
130 hLayout->addWidget(container, stretch: 1);
131 hLayout->addWidget(genNewButton, stretch: 1);
132 hLayout->addWidget(changeSizeSlider, stretch: 1);
133 hLayout->addWidget(sizeLabel);
134
135 // Show window
136 widget->show();
137 widget->resize(w: 1200, h: 800);
138
139 return app.exec();
140}
141

source code of qt3d/tests/manual/paintedtexture-cpp/main.cpp