PANEL:
import java.awt.Color;
import java.awt.Graphics;
import java.awt.BasicStroke;
import java.awt.GradientPaint;
import java.awt.TexturePaint;
import java.awt.Rectangle;
import java.awt.Graphics2D;
import java.awt.geom.Ellipse2D;
import java.awt.geom.Rectangle2D;
import java.awt.geom.RoundRectangle2D;
import java.awt.geom.Arc2D;
import java.awt.geom.Line2D;
import java.awt.image.BufferedImage;
import javax.swing.JPanel;
public class ShapesJPanel extends JPanel
{
public void paintComponent( Graphics g )
{
super.paintComponent( g ); // call superclass's paintComponent
Graphics2D g2d = ( Graphics2D ) g; // cast g to Graphics2D
// draw 2D ellipse filled with a blue-yellow gradient
g2d.setPaint( new GradientPaint( 5, 10, Color.BLUE, 35, 50,
Color.YELLOW, true ) );
g2d.fill( new Ellipse2D.Double( 5, 30, 65, 100 ) );
// draw 2D rectangle in red
g2d.setPaint( Color.RED );
g2d.setStroke( new BasicStroke( 10.0f ) );
g2d.draw( new Rectangle2D.Double( 80, 30, 65, 100 ) );
// draw 2D rounded rectangle with a buffered background
BufferedImage buffImage = new BufferedImage( 10, 10,
BufferedImage.TYPE_INT_RGB );
// obtain Graphics2D from buffImage and draw on it
Graphics2D gg = buffImage.createGraphics();
gg.setColor( Color.YELLOW ); // draw in yellow
gg.fillRect( 0, 0, 10, 10 ); // draw a filled rectangle
gg.setColor( Color.BLACK ); // draw in black
gg.drawRect( 1, 1, 6, 6 ); // draw a rectangle
gg.setColor( Color.BLUE ); // draw in blue
gg.fillRect( 1, 1, 3, 3 ); // draw a filled rectangle
gg.setColor( Color.MAGENTA ); // draw in red
gg.fillRect( 4, 4, 3, 3 ); // draw a filled rectangle
// paint buffImage onto the JFrame
g2d.setPaint( new TexturePaint( buffImage,
new Rectangle( 10, 10 ) ) );
g2d.fill(
new RoundRectangle2D.Double( 155, 30, 75, 100, 50, 50 ) );
// draw 2D pie-shaped arc in white
g2d.setPaint( Color.WHITE );
g2d.setStroke( new BasicStroke( 6.0f ) );
g2d.draw(
new Arc2D.Double( 240, 30, 75, 100, 0, 270, Arc2D.PIE ) );
// draw 2D lines in green and yellow
g2d.setPaint( Color.GREEN );
g2d.draw( new Line2D.Double( 395, 30, 320, 150 ) );
// draw 2D line using stroke
float dashes[] = { 10 }; // specify dash pattern
g2d.setPaint( Color.YELLOW );
g2d.setStroke( new BasicStroke( 4, BasicStroke.CAP_SQUARE,
BasicStroke.JOIN_BEVEL, 20, dashes, 0 ) );
g2d.draw( new Line2D.Double( 320, 30, 395, 150 ) );
} // end method paintComponent
}
SHAPES:
import javax.swing.JFrame;
public class Shapes
{
public static void main( String args[] )
{
// create frame for ShapesJPanel
JFrame frame = new JFrame( "Drawing 2D shapes" );
frame.setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE );
// create ShapesJPanel
ShapesJPanel shapesJPanel = new ShapesJPanel();
frame.add( shapesJPanel ); // add shapesJPanel to frame
frame.setSize( 425, 200 ); // set frame size
frame.setVisible( true ); // display frame
} // end main
}
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