Change Cursor in a thread for animation : Cursor « Swing JFC « Java

1. Java
2. Swing JFC
3. Cursor

Change Cursor in a thread for animation

   

import java.awt.Cursor;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JButton;
import javax.swing.JFrame;

public class Main implements Runnable, ActionListener {
  private boolean animate;

  private Cursor[] cursors = new Cursor[] { Cursor.getPredefinedCursor(Cursor.N_RESIZE_CURSOR),
      Cursor.getPredefinedCursor(Cursor.NE_RESIZE_CURSOR) };

  private JFrame frame;

  public Main(JFrame frame) {
    animate = false;
    this.frame = frame;
  }

  public void run() {
    int count = 0;
    while (animate) {
      try {
        Thread.currentThread().sleep(200);
      } catch (Exception ex) {
      }
      frame.setCursor(cursors[count % cursors.length]);
      count++;
    }
    frame.setCursor(Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR));
  }

  public void actionPerformed(ActionEvent evt) {
    JButton button = (JButton) evt.getSource();
    if (animate) {
      button.setText("Start Animation");
      animate = false;
    } else {
      animate = true;
      button.setText("Stop Animation");
      new Thread(this).start();
    }
  }

  public static void main(String[] args) {
    JFrame frame = new JFrame();
    JButton button = new JButton("Start Animation");
    button.addActionListener(new Main(frame));
    frame.getContentPane().add(button);
    frame.setSize(300, 300);
    frame.setVisible(true);
  }

  public static void p(String str) {
    System.out.println(str);
  }
}

   
    
    
  

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