FontDialog.h

#pragma once
#include <QFontDialog>
#include <QFrame>
#include <QDebug>
#include <QMainWindow>
#include <QLabel>
#include <QPushButton>

namespace Examples {
class Window1 : public QMainWindow {
  Q_OBJECT
public:
  Window1() {
    button.setText("Font...");
    button.move(10, 10);
    connect(&button, &QPushButton::clicked, [&] {
      QFontDialog fontDialog;
      fontDialog.setFont(label.font());
      QDialog::DialogCode dialogCode = static_cast<QDialog::DialogCode>(fontDialog.exec());
      if (dialogCode == QDialog::Accepted)
        label.setFont(fontDialog.currentFont());
    });

    label.setText(u8"The quick brown fox jumps over the lazy dog.\n"
                  u8"THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG.\n"
                  u8"0123456789+-*/%~^&|=<>≤≥±÷≠{{[()]}},;:.?¿!¡\n"
                  u8"àçéèêëïî@@°_#§$ù£€æœø𵩮∞\\\"'\n"
                  u8"\u0400\u0401\u0402\u0403\u0404\u0405\u0406\u0407\u0408\u0409\u040a\u040b\u040c\u040d\u040e\u040f\n"
                  u8"\u0410\u0411\u0412\u0413\u0414\u0415\u0416\u0417\u0418\u0419\u041a\u041b\u041c\u041d\u041e\u041f\n"
                  u8"\u4ea0\u4ea1\u4ea2\u4ea3\u4ea4\u4ea5\u4ea6\u4ea7\u4ea8\u4ea9\u4eaa\u4eab\u4eac\u4ead\u4eae\u4eaf\n"
                  u8"\u4eb0\u4eb1\u4eb2\u4eb3\u4eb4\u4eb5\u4eb6\u4eb7\u4eb8\u4eb9\u4eba\u4ebb\u4ebc\u4ebd\u4ebe\u4ebf\n"
                  u8"\U0001F428");
    label.move(10, 50);
    label.resize(380, 340);
    label.setAlignment(Qt::AlignTop);

    setCentralWidget(&frame);
    setWindowTitle("Font dialog example");
    resize(400, 400);
  }

private:
  QFrame frame;
  QPushButton button {&frame};
  QLabel label {&frame};
};
}