window.cpp Example File
2dpainting/window.cpp
#include "glwidget.h"
#include "widget.h"
#include "window.h"
#include <QGridLayout>
#include <QLabel>
#include <QTimer>
Window::Window()
{
setWindowTitle(tr("2D Painting on Native and OpenGL Widgets"));
Widget *native = new Widget(&helper, this);
GLWidget *openGL = new GLWidget(&helper, this);
QLabel *nativeLabel = new QLabel(tr("Native"));
nativeLabel->setAlignment(Qt::AlignHCenter);
QLabel *openGLLabel = new QLabel(tr("OpenGL"));
openGLLabel->setAlignment(Qt::AlignHCenter);
QGridLayout *layout = new QGridLayout;
layout->addWidget(native, 0, 0);
layout->addWidget(openGL, 0, 1);
layout->addWidget(nativeLabel, 1, 0);
layout->addWidget(openGLLabel, 1, 1);
setLayout(layout);
QTimer *timer = new QTimer(this);
connect(timer, &QTimer::timeout, native, &Widget::animate);
connect(timer, &QTimer::timeout, openGL, &GLWidget::animate);
timer->start(50);
}