Thread: Drawing a shape

Hey, so my problem is that when my program draws a shape it is inside a small square, as you can see here(the arrow shows the small square):

weg.jpg

does anyone know how i can stop this from happening ?


I want my whole window to be the painting JPanel, except for a row at the bottom just for my slider and labels/textboxes.

This is the code that draws the shapes, I make an instance of it within one of my other classes.

package calculations;
 
import java.awt.*;
import java.awt.geom.*;
 
import javax.swing.JPanel;
 
class DrawShape extends JPanel
{
     private int x = 50, y = 10;
 
     public DrawShape(int newX, int newY)
     {
         x = newX;
         y = newY;
 
         this.setBackground(Color.GRAY);
         repaint() ;
     }
 
     @Override
            public void paintComponent(Graphics g)
            {
                Graphics2D g2 = (Graphics2D) g;
 
                super.paintComponent(g2);
 
                BasicStroke pen = new BasicStroke(4F);
                g2.setStroke(pen);
 
                //Square
                Rectangle rect1 = new Rectangle(x,y,50,50);
                g2.setColor(Color.BLACK);
                g2.draw(rect1);
 
                //Circle
                Ellipse2D.Float circle1 = new Ellipse2D.Float(x+100,y,50,50);
                g2.setColor(Color.BLUE);
                g2.draw(circle1);
 
                int xCoords[] = {x+200,x+200,x+260};
                int yCoords[] = {y,y+50,y+50};
 
                //Triangle
                Polygon poly1 = new Polygon(xCoords, yCoords,3);
                g2.setColor(Color.RED);
                g2.draw(poly1);
            }
 }

I can't see what you're talking about in that picture. I took the code you posted and made it runnable. What's wrong with this?

import java.awt.*;
import java.awt.geom.*;
 
import javax.swing.JFrame;
import javax.swing.JPanel;
 
class TestClass extends JPanel
{
    private int x = 50, y = 10;
 
    public TestClass()
    {
        x = 50;
        y = 10;
 
        setPreferredSize( new Dimension( 380, 80 ) );
 
        setBackground(Color.GRAY);
    }
 
    @Override
    public void paintComponent(Graphics g)
    {
        Graphics2D g2 = (Graphics2D) g;
 
        super.paintComponent(g2);
 
        BasicStroke pen = new BasicStroke(4F);
        g2.setStroke(pen);
 
        //Square
        Rectangle rect1 = new Rectangle(x,y,50,50);
        g2.setColor(Color.BLACK);
        g2.draw(rect1);
 
        //Circle
        Ellipse2D.Float circle1 = new Ellipse2D.Float(x+100,y,50,50);
        g2.setColor(Color.BLUE);
        g2.draw(circle1);
 
        int xCoords[] = {x+200,x+200,x+260};
        int yCoords[] = {y,y+50,y+50};
 
        //Triangle
        Polygon poly1 = new Polygon(xCoords, yCoords,3);
        g2.setColor(Color.RED);
        g2.draw(poly1);
    }
 
    public static void main( String[] args )
    {
        SwingUtilities.invokeLater( new Runnable()
        {
           public void run()
           {
               JFrame frame = new JFrame();
 
               frame.setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE );
               frame.add( new TestClass() );
               frame.pack();
 
               frame.setVisible( true );
 
           } // end method run()
 
        } );
 
    } // end method main()
 
} // end class TestClass