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50
51#include "glwidget.h"
52#include "window.h"
53#include "mainwindow.h"
54#include <QSlider>
55#include <QVBoxLayout>
56#include <QHBoxLayout>
57#include <QKeyEvent>
58#include <QPushButton>
59#include <QDesktopWidget>
60#include <QApplication>
61#include <QMessageBox>
62
63Window::Window(MainWindow *mw)
64 : mainWindow(mw)
65{
66 glWidget = new GLWidget;
67
68 xSlider = createSlider();
69 ySlider = createSlider();
70 zSlider = createSlider();
71
72 connect(sender: xSlider, signal: &QSlider::valueChanged, receiver: glWidget, slot: &GLWidget::setXRotation);
73 connect(sender: glWidget, signal: &GLWidget::xRotationChanged, receiver: xSlider, slot: &QSlider::setValue);
74 connect(sender: ySlider, signal: &QSlider::valueChanged, receiver: glWidget, slot: &GLWidget::setYRotation);
75 connect(sender: glWidget, signal: &GLWidget::yRotationChanged, receiver: ySlider, slot: &QSlider::setValue);
76 connect(sender: zSlider, signal: &QSlider::valueChanged, receiver: glWidget, slot: &GLWidget::setZRotation);
77 connect(sender: glWidget, signal: &GLWidget::zRotationChanged, receiver: zSlider, slot: &QSlider::setValue);
78
79 QVBoxLayout *mainLayout = new QVBoxLayout;
80 QHBoxLayout *container = new QHBoxLayout;
81 container->addWidget(glWidget);
82 container->addWidget(xSlider);
83 container->addWidget(ySlider);
84 container->addWidget(zSlider);
85
86 QWidget *w = new QWidget;
87 w->setLayout(container);
88 mainLayout->addWidget(w);
89 dockBtn = new QPushButton(tr(s: "Undock"), this);
90 connect(sender: dockBtn, signal: &QPushButton::clicked, receiver: this, slot: &Window::dockUndock);
91 mainLayout->addWidget(dockBtn);
92
93 setLayout(mainLayout);
94
95 xSlider->setValue(15 * 16);
96 ySlider->setValue(345 * 16);
97 zSlider->setValue(0 * 16);
98
99 setWindowTitle(tr(s: "Hello GL"));
100}
101
102QSlider *Window::createSlider()
103{
104 QSlider *slider = new QSlider(Qt::Vertical);
105 slider->setRange(min: 0, max: 360 * 16);
106 slider->setSingleStep(16);
107 slider->setPageStep(15 * 16);
108 slider->setTickInterval(15 * 16);
109 slider->setTickPosition(QSlider::TicksRight);
110 return slider;
111}
112
113void Window::keyPressEvent(QKeyEvent *e)
114{
115 if (e->key() == Qt::Key_Escape)
116 close();
117 else
118 QWidget::keyPressEvent(event: e);
119}
120
121void Window::dockUndock()
122{
123 if (parent()) {
124 setParent(nullptr);
125 setAttribute(Qt::WA_DeleteOnClose);
126 move(ax: QApplication::desktop()->width() / 2 - width() / 2,
127 ay: QApplication::desktop()->height() / 2 - height() / 2);
128 dockBtn->setText(tr(s: "Dock"));
129 show();
130 } else {
131 if (!mainWindow->centralWidget()) {
132 if (mainWindow->isVisible()) {
133 setAttribute(Qt::WA_DeleteOnClose, on: false);
134 dockBtn->setText(tr(s: "Undock"));
135 mainWindow->setCentralWidget(this);
136 } else {
137 QMessageBox::information(parent: nullptr, title: tr(s: "Cannot dock"),
138 text: tr(s: "Main window already closed"));
139 }
140 } else {
141 QMessageBox::information(parent: nullptr, title: tr(s: "Cannot dock"),
142 text: tr(s: "Main window already occupied"));
143 }
144 }
145}
146

source code of qtbase/examples/opengl/hellogl2/window.cpp