qt-migration-copilot-demo/qt6-after/qt6-migrated-benchmark/MainWindow.cpp

#include "MainWindow.h"

#include "ui_MainWindow.h"

#include <QApplication>
#include <QPixmap>
#include <QRect>
#include <QScreen>
#include <QString>

MainWindow::MainWindow(QWidget* parent)
    : QMainWindow(parent), ui(new Ui::MainWindow), m_pattern(QRegularExpression(R"(^[A-Za-z]+\d+$)"))
{
    ui->setupUi(this);

    setWindowTitle(QStringLiteral("Qt6 Legacy Migration Benchmark"));

    ui->label->setText(QStringLiteral("Bitte Text wie Test123 eingeben."));
    ui->iconLabel->setPixmap(QPixmap(QStringLiteral(":/icons/app.png")).scaled(48, 48));

    connect(ui->validateButton, &QPushButton::clicked, this, &MainWindow::onValidateClicked);
    connect(ui->screenButton, &QPushButton::clicked, this, &MainWindow::onScreenInfoClicked);
}

MainWindow::~MainWindow()
{
    delete ui;
}

bool MainWindow::validateInput(const QString& text) const
{
    return m_pattern.match(text).hasMatch();
}

QString MainWindow::getScreenInfo() const
{
    const QScreen* screen = QApplication::primaryScreen();
    if (!screen)
    {
        return QStringLiteral("Screen: unavailable");
    }
    const QRect geometry = screen->geometry();
    return QStringLiteral("Screen: %1x%2").arg(geometry.width()).arg(geometry.height());
}

void MainWindow::onValidateClicked()
{
    const QString text = ui->lineEdit->text();

    if (validateInput(text))
    {
        ui->resultLabel->setText(QStringLiteral("Match"));
    }
    else
    {
        ui->resultLabel->setText(QStringLiteral("No match"));
    }
}

void MainWindow::onScreenInfoClicked()
{
    const QString info = getScreenInfo();
    ui->resultLabel->setText(info);
}