import java.awt.Color;
import java.awt.Graphics;
import javax.swing.JPanel;
@SuppressWarnings("serial")
public class MyCanvas extends JPanel {
public MyCanvas() {
super();
}
public void paintComponent(Graphics g) {
// g.setColor(Color.RED);
// g.fillRect(0, 0, getWidth(), getHeight());
}
public void clearCanvas() {
Graphics g = getGraphics();
g.clearRect(0, 0, g.getClipBounds(getVisibleRect()).width,
g.getClipBounds(getVisibleRect()).height);
setbkg(Color.RED);
}
public void setbkg(Color color) {
Graphics g = getGraphics();
g.setColor(color);
g.fillRect(0, 0, getWidth(), getHeight());
}
public void DrawLine(int x1, int y1, int x2, int y2) {
Graphics g = getGraphics();
g.drawLine(x1, y1, x2, y2);
}
}