Java 1.1		Java 1.2
public void paint(Graphics g) { // Set pen parameters g.setColor(someColor); g.setFont(someLimitedFont); // Draw a shape g.drawString(...); g.drawLine(...) g.drawRect(...); // outline g.fillRect(...); // solid g.drawPolygon(...); // outline g.fillPolygon(...); // solid g.drawOval(...); // outline g.fillOval(...); // solid ... }		public void paintComponent(Graphics g) { // Clear off-screen bitmap super.paintComponent(g); // Cast Graphics to Graphics2D Graphics2D g2d = (Graphics2D)g; // Set pen parameters g2d.setPaint(fillColorOrPattern); g2d.setStroke(penThicknessOrPattern); g2d.setComposite(someAlphaComposite); g2d.setFont(anyFont); g2d.translate(...); g2d.rotate(...); g2d.scale(...); g2d.shear(...); g2d.setTransform(someAffineTransform); // Allocate a shape SomeShape s = new SomeShape(...); // Draw shape g2d.draw(s); // outline g2d.fill(s); // solid }

1.2 Main New Features

• Colors and patterns: gradient fills, fill patterns from tiled images, transparency
• Local fonts
• Pen thicknesses, dashing patterns, and segment connection styles
• Coordinate transformations

1.3 General Approach

• Cast the Graphics object to a Graphics2D object
  

  public void paintComponent(Graphics g) {    super.paintComponent(g);  // Typical Swing approach    Graphics2D g2d = (Graphics2D)g;    g2d.doSomeStuff(...);    ...  }  

• Create a Shape object

  Rectangle2D.Double rect = ...;  Ellipse2D.Double ellipse = ...;  Polygon poly = ...;  GeneralPath path = ...;  SomeShapeYouDefined shape = ...; // Satisfies Shape interface  ...  

• Optional: modify drawing parameters

  g2d.setPaint(fillColorOrPattern);  g2d.setStroke(penThicknessOrPattern);  g2d.setComposite(someAlphaComposite);  g2d.setFont(someFont);  g2d.translate(...);  g2d.rotate(...);  g2d.scale(...);  g2d.shear(...);  g2d.setTransform(someAffineTransform);  

• Draw an outlined or solid version of the Shape

  g2d.draw(someShape);  g2d.fill(someShape);  

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