FSRemoteControl/src/main/java/ch/spherICIT/main/MainPanel.java

package ch.spherICIT.main;

import ch.spherICIT.components.switchbtn.SwitchButton;
import com.fazecast.jSerialComm.SerialPort;

import javax.swing.DefaultComboBoxModel;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JComponent;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.plaf.FontUIResource;
import javax.swing.text.StyleContext;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Insets;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Locale;
import java.util.Optional;
import java.util.Set;

public class MainPanel {

    private JPanel mainPanel;
    private JLabel serPortLbl;
    private JComboBox<CommPort> serPortCboBox;
    private JButton serPortOpenBtn;
    private JButton serPortCloseBtn;
    private JButton setZeroAzBtn;
    private SwitchButton relaisPwrBtn;
    private SwitchButton camVelocityModeBtn;
    private SwitchButton camStepperPwrBtn;
    private JLabel relaisPwrLed;
    private JLabel camStepperPwrLed;
    private JButton logWindowBtn;
    private final LogWindow logWindow;

    private Set<IConnectionState> connectionStateListeners;
    private ActionListener reconnectActionListener;
    private List<CommPort> commPorts;

    /**
     * Konstruktor.
     */
    public MainPanel() {
        this.logWindow = new LogWindow();
        this.connectionStateListeners = new HashSet<>();
        $$$setupUI$$$();
        initCommPorts();

        this.reconnectActionListener = new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                JOptionPane.showMessageDialog(mainPanel, "Test", "Title", JOptionPane.INFORMATION_MESSAGE);
            }
        };
        this.serPortOpenBtn.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
//                connectionStateListeners.iterator().next().connectionStateChanged(new ConnectionStateInfo(ConnectionState.CONNECTING, "", ""));
                getSelectedCommPort().get().getSerialPort().get().openPort();
                serPortOpenBtn.setEnabled(false);
                serPortCloseBtn.setEnabled(true);
            }
        });
        this.serPortCloseBtn.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
//                connectionStateListeners.iterator().next().connectionStateChanged(new ConnectionStateInfo(ConnectionState.CONNECTED, "COM4", "v1.2.0"));
                getSelectedCommPort().get().getSerialPort().get().closePort();
                serPortOpenBtn.setEnabled(true);
                serPortCloseBtn.setEnabled(false);
            }
        });
        this.setZeroAzBtn.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                connectionStateListeners.iterator().next().connectionStateChanged(new ConnectionStateInfo(ConnectionState.TIMEOUT, "", ""));
            }
        });
        this.logWindowBtn.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                logWindow.setVisible(true);
            }
        });
    }

    private void initCommPorts() {
        this.commPorts = new ArrayList<>();
        this.commPorts.add(new CommPort(null));
        for (SerialPort serialPort : SerialPort.getCommPorts()) {
            this.commPorts.add(new CommPort(serialPort));
        }
        this.serPortCboBox.setModel(new DefaultComboBoxModel(this.commPorts.toArray()));
        serPortCboBox.addItemListener(new ItemListener() {
            @Override
            public void itemStateChanged(ItemEvent e) {
                Optional<CommPort> selCommPortOptional = getSelectedCommPort();
                if (selCommPortOptional.isPresent() && selCommPortOptional.get().getSerialPort().isPresent()) {
                    selCommPortOptional.get().getSerialPort().get().openPort();
                    serPortOpenBtn.setEnabled(false);
                    serPortCloseBtn.setEnabled(true);
                } else {
                    for (IConnectionState listener : connectionStateListeners) {
                        listener.connectionStateChanged(new ConnectionStateInfo(ConnectionState.READY, null, null));
                        serPortOpenBtn.setEnabled(false);
                        serPortCloseBtn.setEnabled(false);

                    }
                }
            }
        });
        this.serPortCboBox.setSelectedIndex(-1);
    }

    public void registerConnectionStateListener(IConnectionState connectionStateListener) {
        this.connectionStateListeners.add(connectionStateListener);
    }

    public void removeConnectionStateListener(IConnectionState connectionStateListener) {
        this.connectionStateListeners.remove(connectionStateListener);
    }

    public ActionListener getReconnectActionListener() {
        return reconnectActionListener;
    }

    private Optional<CommPort> getSelectedCommPort() {
        return this.serPortCboBox.getSelectedIndex() != -1 ? Optional.of(this.serPortCboBox.getItemAt(this.serPortCboBox.getSelectedIndex())) : Optional.empty();
    }

    private void createUIComponents() {
        this.serPortCboBox = new JComboBox<>();
    }


    private class CommPort {

        private SerialPort serialPort;

        /**
         * Constructor
         *
         * @param serialPort serial port from JSerialComm
         */
        public CommPort(SerialPort serialPort) {
            this.serialPort = serialPort;
        }

        public Optional<SerialPort> getSerialPort() {
            return this.serialPort != null ? Optional.of(this.serialPort) : Optional.empty();
        }

        @Override
        public String toString() {
            return this.serialPort != null ? this.serialPort.getSystemPortName() : "";
        }
    }

    /**
     * Method generated by IntelliJ IDEA GUI Designer
     * >>> IMPORTANT!! <<<
     * DO NOT edit this method OR call it in your code!
     *
     * @noinspection ALL
     */
    private void $$$setupUI$$$() {
        createUIComponents();
        mainPanel = new JPanel();
        mainPanel.setLayout(new GridBagLayout());
        final JPanel spacer1 = new JPanel();
        GridBagConstraints gbc;
        gbc = new GridBagConstraints();
        gbc.gridx = 7;
        gbc.gridy = 1;
        gbc.weightx = 1.0;
        gbc.fill = GridBagConstraints.HORIZONTAL;
        mainPanel.add(spacer1, gbc);
        serPortLbl = new JLabel();
        Font serPortLblFont = this.$$$getFont$$$("Bahnschrift", Font.PLAIN, 14, serPortLbl.getFont());
        if (serPortLblFont != null) serPortLbl.setFont(serPortLblFont);
        serPortLbl.setText("Serieller Port:");
        gbc = new GridBagConstraints();
        gbc.gridx = 0;
        gbc.gridy = 0;
        gbc.gridwidth = 2;
        gbc.anchor = GridBagConstraints.NORTHWEST;
        gbc.insets = new Insets(18, 10, 10, 10);
        mainPanel.add(serPortLbl, gbc);
        final JPanel spacer2 = new JPanel();
        gbc = new GridBagConstraints();
        gbc.gridx = 1;
        gbc.gridy = 6;
        gbc.weighty = 1.0;
        gbc.fill = GridBagConstraints.VERTICAL;
        mainPanel.add(spacer2, gbc);
        Font serPortCboBoxFont = this.$$$getFont$$$("Bahnschrift", Font.PLAIN, 14, serPortCboBox.getFont());
        if (serPortCboBoxFont != null) serPortCboBox.setFont(serPortCboBoxFont);
        serPortCboBox.setMinimumSize(new Dimension(120, 32));
        final DefaultComboBoxModel defaultComboBoxModel1 = new DefaultComboBoxModel();
        serPortCboBox.setModel(defaultComboBoxModel1);
        serPortCboBox.setPreferredSize(new Dimension(120, 32));
        gbc = new GridBagConstraints();
        gbc.gridx = 2;
        gbc.gridy = 0;
        gbc.anchor = GridBagConstraints.NORTHWEST;
        gbc.fill = GridBagConstraints.HORIZONTAL;
        gbc.insets = new Insets(10, 0, 10, 10);
        mainPanel.add(serPortCboBox, gbc);
        serPortOpenBtn = new JButton();
        serPortOpenBtn.setContentAreaFilled(true);
        serPortOpenBtn.setEnabled(false);
        Font serPortOpenBtnFont = this.$$$getFont$$$("Bahnschrift", Font.PLAIN, 14, serPortOpenBtn.getFont());
        if (serPortOpenBtnFont != null) serPortOpenBtn.setFont(serPortOpenBtnFont);
        serPortOpenBtn.setHideActionText(false);
        serPortOpenBtn.setHorizontalTextPosition(0);
        serPortOpenBtn.setLabel("Öffnen");
        serPortOpenBtn.setMinimumSize(new Dimension(130, 32));
        serPortOpenBtn.setPreferredSize(new Dimension(130, 32));
        serPortOpenBtn.setSelected(false);
        serPortOpenBtn.setText("Öffnen");
        serPortOpenBtn.setVerticalAlignment(3);
        gbc = new GridBagConstraints();
        gbc.gridx = 3;
        gbc.gridy = 0;
        gbc.anchor = GridBagConstraints.NORTH;
        gbc.fill = GridBagConstraints.HORIZONTAL;
        gbc.insets = new Insets(10, 10, 10, 10);
        mainPanel.add(serPortOpenBtn, gbc);
        serPortCloseBtn = new JButton();
        serPortCloseBtn.setEnabled(false);
        Font serPortCloseBtnFont = this.$$$getFont$$$("Bahnschrift", Font.PLAIN, 14, serPortCloseBtn.getFont());
        if (serPortCloseBtnFont != null) serPortCloseBtn.setFont(serPortCloseBtnFont);
        serPortCloseBtn.setLabel("Schliessen");
        serPortCloseBtn.setMinimumSize(new Dimension(130, 32));
        serPortCloseBtn.setPreferredSize(new Dimension(130, 32));
        serPortCloseBtn.setText("Schliessen");
        serPortCloseBtn.setVerticalAlignment(3);
        gbc = new GridBagConstraints();
        gbc.gridx = 4;
        gbc.gridy = 0;
        gbc.anchor = GridBagConstraints.NORTH;
        gbc.fill = GridBagConstraints.HORIZONTAL;
        gbc.insets = new Insets(10, 10, 10, 10);
        mainPanel.add(serPortCloseBtn, gbc);
        final JLabel label1 = new JLabel();
        Font label1Font = this.$$$getFont$$$("Bahnschrift", Font.BOLD, 16, label1.getFont());
        if (label1Font != null) label1.setFont(label1Font);
        label1.setForeground(new Color(-15834670));
        label1.setHorizontalAlignment(0);
        label1.setText("Relais Power Schalter");
        gbc = new GridBagConstraints();
        gbc.gridx = 0;
        gbc.gridy = 1;
        gbc.gridwidth = 3;
        gbc.weightx = 1.0;
        gbc.fill = GridBagConstraints.HORIZONTAL;
        gbc.insets = new Insets(10, 10, 10, 10);
        mainPanel.add(label1, gbc);
        final JLabel label2 = new JLabel();
        Font label2Font = this.$$$getFont$$$("Bahnschrift", Font.BOLD, 16, label2.getFont());
        if (label2Font != null) label2.setFont(label2Font);
        label2.setForeground(new Color(-15834670));
        label2.setHorizontalAlignment(0);
        label2.setText("Drehwinkel WebCam");
        gbc = new GridBagConstraints();
        gbc.gridx = 3;
        gbc.gridy = 1;
        gbc.gridwidth = 2;
        gbc.weightx = 1.0;
        gbc.fill = GridBagConstraints.HORIZONTAL;
        gbc.insets = new Insets(10, 10, 10, 10);
        mainPanel.add(label2, gbc);
        final JLabel label3 = new JLabel();
        Font label3Font = this.$$$getFont$$$("Bahnschrift", Font.BOLD, 16, label3.getFont());
        if (label3Font != null) label3.setFont(label3Font);
        label3.setForeground(new Color(-15834670));
        label3.setHorizontalAlignment(0);
        label3.setText("WebCam 0° Azimut");
        gbc = new GridBagConstraints();
        gbc.gridx = 5;
        gbc.gridy = 1;
        gbc.gridwidth = 2;
        gbc.weightx = 1.0;
        gbc.anchor = GridBagConstraints.WEST;
        gbc.insets = new Insets(10, 0, 10, 10);
        mainPanel.add(label3, gbc);
        final JPanel panel1 = new JPanel();
        panel1.setLayout(new GridBagLayout());
        gbc = new GridBagConstraints();
        gbc.gridx = 0;
        gbc.gridy = 2;
        gbc.gridwidth = 3;
        gbc.fill = GridBagConstraints.BOTH;
        mainPanel.add(panel1, gbc);
        final JLabel label4 = new JLabel();
        Font label4Font = this.$$$getFont$$$("Bahnschrift", Font.BOLD, 20, label4.getFont());
        if (label4Font != null) label4.setFont(label4Font);
        label4.setForeground(new Color(-65536));
        label4.setText("AUS");
        gbc = new GridBagConstraints();
        gbc.gridx = 0;
        gbc.gridy = 0;
        gbc.anchor = GridBagConstraints.WEST;
        gbc.insets = new Insets(0, 0, 0, 10);
        panel1.add(label4, gbc);
        final JLabel label5 = new JLabel();
        Font label5Font = this.$$$getFont$$$("Bahnschrift", Font.BOLD, 20, label5.getFont());
        if (label5Font != null) label5.setFont(label5Font);
        label5.setForeground(new Color(-16738404));
        label5.setText("EIN");
        gbc = new GridBagConstraints();
        gbc.gridx = 2;
        gbc.gridy = 0;
        gbc.anchor = GridBagConstraints.WEST;
        gbc.insets = new Insets(0, 10, 0, 0);
        panel1.add(label5, gbc);
        relaisPwrBtn = new SwitchButton();
        relaisPwrBtn.setBackground(new Color(-16738404));
        relaisPwrBtn.setPreferredSize(new Dimension(80, 40));
        gbc = new GridBagConstraints();
        gbc.gridx = 1;
        gbc.gridy = 0;
        panel1.add(relaisPwrBtn, gbc);
        final JLabel label6 = new JLabel();
        Font label6Font = this.$$$getFont$$$("Bahnschrift", Font.BOLD, 16, label6.getFont());
        if (label6Font != null) label6.setFont(label6Font);
        label6.setForeground(new Color(-15834670));
        label6.setHorizontalAlignment(0);
        label6.setText("Relais Power Status");
        gbc = new GridBagConstraints();
        gbc.gridx = 0;
        gbc.gridy = 4;
        gbc.gridwidth = 3;
        gbc.weightx = 1.0;
        gbc.fill = GridBagConstraints.HORIZONTAL;
        gbc.insets = new Insets(10, 10, 10, 10);
        mainPanel.add(label6, gbc);
        final JPanel spacer3 = new JPanel();
        gbc = new GridBagConstraints();
        gbc.gridx = 0;
        gbc.gridy = 3;
        gbc.gridwidth = 2;
        gbc.fill = GridBagConstraints.VERTICAL;
        gbc.ipady = 80;
        mainPanel.add(spacer3, gbc);
        relaisPwrLed = new JLabel();
        relaisPwrLed.setHorizontalAlignment(0);
        relaisPwrLed.setIcon(new ImageIcon(getClass().getResource("/blue_led_off.png")));
        relaisPwrLed.setText("");
        gbc = new GridBagConstraints();
        gbc.gridx = 0;
        gbc.gridy = 5;
        gbc.gridwidth = 3;
        gbc.fill = GridBagConstraints.HORIZONTAL;
        mainPanel.add(relaisPwrLed, gbc);
        setZeroAzBtn = new JButton();
        Font setZeroAzBtnFont = this.$$$getFont$$$("Bahnschrift", Font.PLAIN, 14, setZeroAzBtn.getFont());
        if (setZeroAzBtnFont != null) setZeroAzBtn.setFont(setZeroAzBtnFont);
        setZeroAzBtn.setMaximumSize(new Dimension(130, 32));
        setZeroAzBtn.setMinimumSize(new Dimension(130, 32));
        setZeroAzBtn.setPreferredSize(new Dimension(130, 32));
        setZeroAzBtn.setText("0° setzen");
        setZeroAzBtn.setVerticalAlignment(3);
        gbc = new GridBagConstraints();
        gbc.gridx = 5;
        gbc.gridy = 2;
        gbc.gridwidth = 2;
        gbc.anchor = GridBagConstraints.NORTHWEST;
        mainPanel.add(setZeroAzBtn, gbc);
        final JPanel panel2 = new JPanel();
        panel2.setLayout(new GridBagLayout());
        gbc = new GridBagConstraints();
        gbc.gridx = 5;
        gbc.gridy = 3;
        gbc.gridwidth = 2;
        gbc.anchor = GridBagConstraints.WEST;
        gbc.fill = GridBagConstraints.VERTICAL;
        mainPanel.add(panel2, gbc);
        final JLabel label7 = new JLabel();
        Font label7Font = this.$$$getFont$$$("Bahnschrift", Font.BOLD, 16, label7.getFont());
        if (label7Font != null) label7.setFont(label7Font);
        label7.setForeground(new Color(-65536));
        label7.setText("SLOW");
        gbc = new GridBagConstraints();
        gbc.gridx = 0;
        gbc.gridy = 1;
        gbc.anchor = GridBagConstraints.WEST;
        gbc.insets = new Insets(0, 0, 0, 10);
        panel2.add(label7, gbc);
        final JLabel label8 = new JLabel();
        Font label8Font = this.$$$getFont$$$("Bahnschrift", Font.BOLD, 16, label8.getFont());
        if (label8Font != null) label8.setFont(label8Font);
        label8.setForeground(new Color(-15834670));
        label8.setHorizontalAlignment(0);
        label8.setText("WebCam Geschwindigkeit");
        gbc = new GridBagConstraints();
        gbc.gridx = 0;
        gbc.gridy = 0;
        gbc.gridwidth = 4;
        gbc.weightx = 1.0;
        gbc.anchor = GridBagConstraints.WEST;
        gbc.insets = new Insets(10, 0, 10, 10);
        panel2.add(label8, gbc);
        camVelocityModeBtn = new SwitchButton();
        camVelocityModeBtn.setBackground(new Color(-16738404));
        gbc = new GridBagConstraints();
        gbc.gridx = 1;
        gbc.gridy = 1;
        panel2.add(camVelocityModeBtn, gbc);
        final JLabel label9 = new JLabel();
        Font label9Font = this.$$$getFont$$$("Bahnschrift", Font.BOLD, 16, label9.getFont());
        if (label9Font != null) label9.setFont(label9Font);
        label9.setForeground(new Color(-16738404));
        label9.setText("FAST");
        gbc = new GridBagConstraints();
        gbc.gridx = 2;
        gbc.gridy = 1;
        gbc.anchor = GridBagConstraints.WEST;
        gbc.insets = new Insets(0, 10, 0, 0);
        panel2.add(label9, gbc);
        final JPanel spacer4 = new JPanel();
        gbc = new GridBagConstraints();
        gbc.gridx = 0;
        gbc.gridy = 2;
        gbc.gridwidth = 4;
        gbc.weighty = 1.0;
        gbc.fill = GridBagConstraints.BOTH;
        panel2.add(spacer4, gbc);
        final JPanel panel3 = new JPanel();
        panel3.setLayout(new GridBagLayout());
        gbc = new GridBagConstraints();
        gbc.gridx = 5;
        gbc.gridy = 4;
        gbc.gridwidth = 2;
        gbc.gridheight = 2;
        gbc.anchor = GridBagConstraints.WEST;
        gbc.fill = GridBagConstraints.VERTICAL;
        mainPanel.add(panel3, gbc);
        final JLabel label10 = new JLabel();
        Font label10Font = this.$$$getFont$$$("Bahnschrift", Font.BOLD, 16, label10.getFont());
        if (label10Font != null) label10.setFont(label10Font);
        label10.setForeground(new Color(-65536));
        label10.setText("AUS");
        gbc = new GridBagConstraints();
        gbc.gridx = 0;
        gbc.gridy = 1;
        gbc.anchor = GridBagConstraints.SOUTHWEST;
        gbc.insets = new Insets(0, 0, 12, 10);
        panel3.add(label10, gbc);
        final JLabel label11 = new JLabel();
        Font label11Font = this.$$$getFont$$$("Bahnschrift", Font.BOLD, 16, label11.getFont());
        if (label11Font != null) label11.setFont(label11Font);
        label11.setForeground(new Color(-16738404));
        label11.setText("Ein");
        gbc = new GridBagConstraints();
        gbc.gridx = 2;
        gbc.gridy = 1;
        gbc.anchor = GridBagConstraints.SOUTH;
        gbc.fill = GridBagConstraints.HORIZONTAL;
        gbc.insets = new Insets(0, 10, 12, 0);
        panel3.add(label11, gbc);
        final JLabel label12 = new JLabel();
        Font label12Font = this.$$$getFont$$$("Bahnschrift", Font.BOLD, 16, label12.getFont());
        if (label12Font != null) label12.setFont(label12Font);
        label12.setForeground(new Color(-15834670));
        label12.setHorizontalAlignment(0);
        label12.setText("WebCam Stepper Power");
        gbc = new GridBagConstraints();
        gbc.gridx = 0;
        gbc.gridy = 0;
        gbc.gridwidth = 4;
        gbc.anchor = GridBagConstraints.WEST;
        gbc.insets = new Insets(10, 0, 10, 10);
        panel3.add(label12, gbc);
        final JPanel panel4 = new JPanel();
        panel4.setLayout(new GridBagLayout());
        gbc = new GridBagConstraints();
        gbc.gridx = 3;
        gbc.gridy = 1;
        gbc.anchor = GridBagConstraints.EAST;
        gbc.fill = GridBagConstraints.VERTICAL;
        panel3.add(panel4, gbc);
        final JLabel label13 = new JLabel();
        Font label13Font = this.$$$getFont$$$("Bahnschrift", Font.BOLD, 14, label13.getFont());
        if (label13Font != null) label13.setFont(label13Font);
        label13.setForeground(new Color(-15834670));
        label13.setHorizontalAlignment(0);
        label13.setText("Status");
        gbc = new GridBagConstraints();
        gbc.gridx = 0;
        gbc.gridy = 0;
        gbc.fill = GridBagConstraints.HORIZONTAL;
        gbc.insets = new Insets(0, 10, 5, 10);
        panel4.add(label13, gbc);
        camStepperPwrLed = new JLabel();
        camStepperPwrLed.setHorizontalAlignment(0);
        camStepperPwrLed.setIcon(new ImageIcon(getClass().getResource("/blue_led_off.png")));
        camStepperPwrLed.setText("");
        gbc = new GridBagConstraints();
        gbc.gridx = 0;
        gbc.gridy = 1;
        gbc.fill = GridBagConstraints.HORIZONTAL;
        panel4.add(camStepperPwrLed, gbc);
        camStepperPwrBtn = new SwitchButton();
        camStepperPwrBtn.setBackground(new Color(-16738404));
        gbc = new GridBagConstraints();
        gbc.gridx = 1;
        gbc.gridy = 1;
        gbc.anchor = GridBagConstraints.SOUTH;
        gbc.insets = new Insets(0, 0, 10, 0);
        panel3.add(camStepperPwrBtn, gbc);
        final JLabel label14 = new JLabel();
        label14.setIcon(new ImageIcon(getClass().getResource("/Arduino_Logo_small.png")));
        label14.setText("");
        gbc = new GridBagConstraints();
        gbc.gridx = 5;
        gbc.gridy = 0;
        gbc.anchor = GridBagConstraints.EAST;
        gbc.insets = new Insets(10, 80, 20, 10);
        mainPanel.add(label14, gbc);
        logWindowBtn = new JButton();
        logWindowBtn.setIcon(new ImageIcon(getClass().getResource("/log24.png")));
        logWindowBtn.setMaximumSize(new Dimension(32, 32));
        logWindowBtn.setMinimumSize(new Dimension(32, 32));
        logWindowBtn.setPreferredSize(new Dimension(32, 32));
        logWindowBtn.setText("");
        gbc = new GridBagConstraints();
        gbc.gridx = 5;
        gbc.gridy = 0;
        gbc.anchor = GridBagConstraints.NORTHWEST;
        gbc.insets = new Insets(10, 10, 10, 10);
        mainPanel.add(logWindowBtn, gbc);
    }

    /**
     * @noinspection ALL
     */
    private Font $$$getFont$$$(String fontName, int style, int size, Font currentFont) {
        if (currentFont == null) return null;
        String resultName;
        if (fontName == null) {
            resultName = currentFont.getName();
        } else {
            Font testFont = new Font(fontName, Font.PLAIN, 10);
            if (testFont.canDisplay('a') && testFont.canDisplay('1')) {
                resultName = fontName;
            } else {
                resultName = currentFont.getName();
            }
        }
        Font font = new Font(resultName, style >= 0 ? style : currentFont.getStyle(), size >= 0 ? size : currentFont.getSize());
        boolean isMac = System.getProperty("os.name", "").toLowerCase(Locale.ENGLISH).startsWith("mac");
        Font fontWithFallback = isMac ? new Font(font.getFamily(), font.getStyle(), font.getSize()) : new StyleContext().getFont(font.getFamily(), font.getStyle(), font.getSize());
        return fontWithFallback instanceof FontUIResource ? fontWithFallback : new FontUIResource(fontWithFallback);
    }

    /**
     * @noinspection ALL
     */
    public JComponent $$$getRootComponent$$$() {
        return mainPanel;
    }

}