import javax.swing.*;

import javax.swing.event.ChangeEvent;

import javax.swing.event.ChangeListener;

import java.awt.*;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.util.Hashtable;

public class MainScreen implements ActionListener, ChangeListener {

private JFrame frame = new JFrame();

private GridBagConstraints c = new GridBagConstraints();

private JButton startButton = new JButton("Start");

private JLabel titleLabel = new JLabel("Minesweeper");

public JSlider rSlider = new JSlider(JSlider.HORIZONTAL,5,100,15);

public JSlider cSlider = new JSlider(JSlider.HORIZONTAL,5,100,15);

public JLabel rLabel = new JLabel("Row");

public JLabel cLabel = new JLabel("Collumn");

public JLabel bLabel = new JLabel("Bombs: ");

public JTextField bField = new JTextField();

public static GameScreen activeThread;

public MainScreen() {

startButton.setBounds(160,160,100,50);

startButton.setPreferredSize(new Dimension(160,80));

startButton.setFocusable(false);

startButton.addActionListener(this);

titleLabel.setFont(new Font("Arial", Font.BOLD, 24));

titleLabel.setHorizontalAlignment(JLabel.CENTER);

titleLabel.setPreferredSize(new Dimension(200,100));

rSlider.setPaintTicks(true);

rSlider.setPaintLabels(true);

rSlider.setPaintTrack(true);

cSlider.setPaintTicks(true);

cSlider.setPaintLabels(true);

cSlider.setPaintTrack(true);

rSlider.setMajorTickSpacing(95);

rSlider.setMinorTickSpacing(5);

cSlider.setMajorTickSpacing(95);

cSlider.setMinorTickSpacing(5);

//rSlider.setPreferredSize(new Dimension(1000,200));

//cSlider.setPreferredSize(new Dimension(1000,200));

//startButton.setPreferredSize(new Dimension(200,100));

Hashtable labelTable = new Hashtable();

labelTable.put(5, new JLabel("5"));

labelTable.put(50, new JLabel("50"));

labelTable.put(100, new JLabel("100"));

rSlider.setLabelTable(labelTable);

cSlider.setLabelTable(labelTable);

rSlider.addChangeListener(this);

cSlider.addChangeListener(this);

rLabel.setFont(new Font("Arial", Font.PLAIN, 12));

rLabel.setPreferredSize(new Dimension(200,20));

rLabel.setHorizontalAlignment(JLabel.LEFT);

cLabel.setFont(new Font("Arial", Font.PLAIN, 12));

cLabel.setPreferredSize(new Dimension(200,20));

cLabel.setHorizontalAlignment(JLabel.LEFT);

bLabel.setFont(new Font("Arial", Font.PLAIN, 12));

bLabel.setPreferredSize(new Dimension(200,20));

bLabel.setHorizontalAlignment(JLabel.LEFT);

// sets the texts of the sliders to their value

rLabel.setText("Rows: " + rSlider.getValue());

cLabel.setText("Cols: " + cSlider.getValue());

bField.setPreferredSize(new Dimension(50,20));

bField.setText("20");

frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

frame.setTitle("Minesweeper");

frame.setSize(420,420);

frame.setLayout(new GridBagLayout());

frame.setLocationRelativeTo(null);

frame.setVisible(true);

c.gridx = 0;

c.gridy = 0;

c.ipadx = 0;

c.ipady = 2;

c.weightx = 0;

c.weighty = 0;

c.fill = GridBagConstraints.NONE;

c.anchor = GridBagConstraints.CENTER;

frame.add(titleLabel, c);

c.gridy = 1;

frame.add(rLabel, c);

c.gridy = 2;

frame.add(rSlider, c);

c.gridy = 3;

frame.add(cLabel, c);

c.gridy = 4;

frame.add(cSlider, c);

c.gridx = -1;

c.gridy = 5;

frame.add(bLabel, c);

c.gridx = 0;

frame.add(bField, c);

c.gridy = 6;

frame.add(startButton, c);

}

@Override

public void actionPerformed(ActionEvent e) {

if(e.getSource() == startButton){

if(MainScreen.activeThread != null){

MainScreen.activeThread.dispose();

}

GameScreen myScreen = new GameScreen(rSlider.getValue(),cSlider.getValue(),Integer.parseInt(bField.getText()));

Thread thread = new Thread(

myScreen

);

thread.start();

MainScreen.activeThread = myScreen;

frame.dispose();

}

}

@Override

public void stateChanged(ChangeEvent e) {

if(e.getSource() == rSlider || e.getSource() == cSlider){

rLabel.setText("Rows: " + rSlider.getValue());

cLabel.setText("Cols: " + cSlider.getValue());

}

}

}