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50
51#include "glwidget.h"
52#include "widget.h"
53#include "window.h"
54
55#include <QGridLayout>
56#include <QLabel>
57#include <QTimer>
58
59//! [0]
60Window::Window()
61{
62 setWindowTitle(tr(s: "2D Painting on Native and OpenGL Widgets"));
63
64 Widget *native = new Widget(&helper, this);
65 GLWidget *openGL = new GLWidget(&helper, this);
66 QLabel *nativeLabel = new QLabel(tr(s: "Native"));
67 nativeLabel->setAlignment(Qt::AlignHCenter);
68 QLabel *openGLLabel = new QLabel(tr(s: "OpenGL"));
69 openGLLabel->setAlignment(Qt::AlignHCenter);
70
71 QGridLayout *layout = new QGridLayout;
72 layout->addWidget(native, row: 0, column: 0);
73 layout->addWidget(openGL, row: 0, column: 1);
74 layout->addWidget(nativeLabel, row: 1, column: 0);
75 layout->addWidget(openGLLabel, row: 1, column: 1);
76 setLayout(layout);
77
78 QTimer *timer = new QTimer(this);
79 connect(sender: timer, signal: &QTimer::timeout, receiver: native, slot: &Widget::animate);
80 connect(sender: timer, signal: &QTimer::timeout, receiver: openGL, slot: &GLWidget::animate);
81 timer->start(msec: 50);
82}
83//! [0]
84

source code of qtbase/examples/opengl/2dpainting/window.cpp