[rstepler]

I am creating a GUI which has three lines. I am trying to get each line to blink separately with each being drawn onto a JPanel (simulation Panel). I have made each line their own class that only differ in where there are drawn in the panel. I have tried a couple different things to get only one line to repaint but nothing seems to be working. I would greatly appreciate any suggestions. Thank you!

Code:

class SimulationPanel extends JPanel {
		LineOne lineone = new LineOne();
		LineTwo linetwo = new LineTwo();
		LineThree linethree = new LineThree(); 
		
		public SimulationPanel () {
			setLayout(null);
			ImageIcon ngo1 =  new ImageIcon("C:/Users/Renee/Desktop/toolbarButtonGraphics/INET_Earth_Clear.png");
			JLabel worldLabel = new JLabel(ngo1);
			Dimension size = worldLabel.getPreferredSize();
			worldLabel.setBounds(390, 75, size.width, size.height);
			add(worldLabel);
			ImageIcon ngo2 =  new ImageIcon("C:/Users/Renee/Desktop/toolbarButtonGraphics/INET_Earth_Clear.png");
			JLabel ngo2Label = new JLabel(ngo2);
			Dimension ngo2Size = ngo2Label.getPreferredSize();
			ngo2Label.setBounds(110, 300, ngo2Size.width, ngo2Size.height);
			add(ngo2Label);
			ImageIcon ngo3 =  new ImageIcon("C:/Users/Renee/Desktop/toolbarButtonGraphics/INET_Earth_Clear.png");
			JLabel ngo3Label = new JLabel(ngo3);
			Dimension ngo3Size = ngo3Label.getPreferredSize();
			ngo3Label.setBounds(730, 300, ngo3Size.width, ngo3Size.height);
			add(ngo3Label);
			
		}

		public void paint(Graphics comp) {	
			super.paint(comp);
			Graphics2D comp2D = (Graphics2D) comp
			Font titleFont = new Font("Serif", Font.BOLD , 24);
			setFont(titleFont);
			String str = "Simulation";
			comp2D.drawString(str, 15, 50);
			
			LineOne.paintLineOne(comp);
			LineTwo.paintLineTwo(comp); 
			LineThree.paintLineThree(comp); 
		
			}
}

Code:

import java.awt.Color;
import java.awt.Graphics;

		
class Runner extends Thread   {
	
	public SimulationPanel sp;
	
	public Runner (SimulationPanel simpanel){
			this.sp=simpanel;
			
	}
	
	
	public void run(Graphics comp) {
	
		
		LineOne.blinkLineOne(comp,true); 
		sp.repaint();
		delay(100);
		
		}
	
	void delay(int milliseconds) {
		try {
			Thread.sleep(milliseconds);
		}
		catch (InterruptedException e) {}
	}

	
	
}

Code:

public class LineOne {
	private static int xPos1 =500;
	static int xPos2 = 800;
	static int ypos1 = 150;
	static int yPos2 = 350; 
	
	public void setX(int xPos1){
		this.xPos1=xPos1;
	}
	public void setX2(int xPos2){
		this.xPos2=xPos2;
	}
	public void setY(int ypos1){
		this.ypos1=ypos1;
	}
	public void setY2(int yPos2){
		this.yPos2=yPos2;
	}
	public static int getX(){
		return xPos1; 
	}
	public static int getX2(){
		return xPos2;
	}
	public static int getY(){
		return ypos1;
	}
	public static int getY2(){
		return yPos2;
	}

	
public static void paintLineOne(Graphics comp){
		Graphics2D comp2D = (Graphics2D) comp;
		BasicStroke stroke2 = new BasicStroke(2);
		comp2D.setStroke(stroke2);
		comp2D.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
		comp.drawLine(getX(),getY(),getX2(), getY2()); 
	}


public static boolean blinkLineOne(Graphics comp, boolean isVisible){
	Graphics2D comp2D = (Graphics2D) comp;
	if (isVisible == true){
		comp2D.setPaint(Color.WHITE);
		paintLineOne(comp);
		 isVisible = false;
	} else{
		comp2D.setPaint(Color.BLACK);
		paintLineOne(comp);
		isVisible = true;
	}
	return isVisible;
	}