mainwindow.cpp Example File

hellovulkancubes/mainwindow.cpp
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 #include "mainwindow.h"
 #include "vulkanwindow.h"
 #include <QApplication>
 #include <QLabel>
 #include <QPushButton>
 #include <QLCDNumber>
 #include <QCheckBox>
 #include <QGridLayout>

 MainWindow::MainWindow(VulkanWindow *vulkanWindow)
 {
     QWidget *wrapper = QWidget::createWindowContainer(vulkanWindow);
     wrapper->setFocusPolicy(Qt::StrongFocus);
     wrapper->setFocus();

     infoLabel = new QLabel;
     infoLabel->setFrameStyle(QFrame::Box | QFrame::Raised);
     infoLabel->setAlignment(Qt::AlignCenter);
     infoLabel->setText(tr("This example demonstrates instanced drawing\nof a mesh loaded from a file.\n"
                           "Uses a Phong material with a single light.\n"
                           "Also demonstrates dynamic uniform buffers\nand a bit of threading with QtConcurrent.\n"
                           "Uses 4x MSAA when available.\n"
                           "Comes with an FPS camera.\n"
                           "Hit [Shift+]WASD to walk and strafe.\nPress and move mouse to look around.\n"
                           "Click Add New to increase the number of instances."));

     meshSwitch = new QCheckBox(tr("&Use Qt logo"));
     meshSwitch->setFocusPolicy(Qt::NoFocus); // do not interfere with vulkanWindow's keyboard input

     counterLcd = new QLCDNumber(5);
     counterLcd->setSegmentStyle(QLCDNumber::Filled);
     counterLcd->display(m_count);

     newButton = new QPushButton(tr("&Add new"));
     newButton->setFocusPolicy(Qt::NoFocus);
     quitButton = new QPushButton(tr("&Quit"));
     quitButton->setFocusPolicy(Qt::NoFocus);
     pauseButton = new QPushButton(tr("&Pause"));
     pauseButton->setFocusPolicy(Qt::NoFocus);

     connect(quitButton, &QPushButton::clicked, qApp, &QCoreApplication::quit);
     connect(newButton, &QPushButton::clicked, vulkanWindow, [=] {
         vulkanWindow->addNew();
         m_count = vulkanWindow->instanceCount();
         counterLcd->display(m_count);
     });
     connect(pauseButton, &QPushButton::clicked, vulkanWindow, &VulkanWindow::togglePaused);
     connect(meshSwitch, &QCheckBox::clicked, vulkanWindow, &VulkanWindow::meshSwitched);

     QGridLayout *layout = new QGridLayout;
     layout->addWidget(infoLabel, 0, 2);
     layout->addWidget(meshSwitch, 1, 2);
     layout->addWidget(createLabel(tr("INSTANCES")), 2, 2);
     layout->addWidget(counterLcd, 3, 2);
     layout->addWidget(newButton, 4, 2);
     layout->addWidget(pauseButton, 5, 2);
     layout->addWidget(quitButton, 6, 2);
     layout->addWidget(wrapper, 0, 0, 7, 2);
     setLayout(layout);
 }

 QLabel *MainWindow::createLabel(const QString &text)
 {
     QLabel *lbl = new QLabel(text);
     lbl->setAlignment(Qt::AlignHCenter | Qt::AlignBottom);
     return lbl;
 }