How to use

ArrowPanel

in

org.jfree.ui

/**
 * Returns a shape for the arrow.
 *
 * @param t  the arrow type.
 *
 * @return the arrow shape.
 */
private Shape getArrow(final int t) {
  switch (t) {
    case UP : return getUpArrow();
    case DOWN : return getDownArrow();
    default : return getUpArrow();
  }
}

/**
 * Creates a new arrow panel.
 *
 * @param type  the arrow type.
 */
public ArrowPanel(final int type) {
  this.type = type;
  setPreferredSize(new Dimension(14, 9));
}

/**
 * Paints the arrow panel.
 *
 * @param g  the graphics device for drawing on.
 */
public void paintComponent(final Graphics g) {
  super.paintComponent(g);
  final Graphics2D g2 = (Graphics2D) g;
  // first determine the size of the drawing area...
  final Dimension size = getSize();
  final Insets insets = getInsets();
  this.available.setRect(insets.left, insets.top,
              size.getWidth() - insets.left - insets.right,
              size.getHeight() - insets.top - insets.bottom);
  g2.translate(insets.left, insets.top);
  g2.fill(getArrow(this.type));
}

/**
 * Creates a new spinner.
 *
 * @param value  the initial value.
 */
public Spinner(final int value) {
  super(new BorderLayout());
  this.value = value;
  this.textField = new JTextField(Integer.toString(this.value));
  this.textField.setHorizontalAlignment(SwingConstants.RIGHT);
  add(this.textField);
  this.buttonPanel = new JPanel(new GridLayout(2, 1, 0, 1));
  this.upButton = new ArrowPanel(ArrowPanel.UP);
  this.upButton.addMouseListener(this);
  this.downButton = new ArrowPanel(ArrowPanel.DOWN);
  this.downButton.addMouseListener(this);
  this.buttonPanel.add(this.upButton);
  this.buttonPanel.add(this.downButton);
  add(this.buttonPanel, BorderLayout.EAST);
}

/**
 * Paints the arrow panel.
 *
 * @param g  the graphics device for drawing on.
 */
public void paintComponent(final Graphics g) {
  super.paintComponent(g);
  final Graphics2D g2 = (Graphics2D) g;
  // first determine the size of the drawing area...
  final Dimension size = getSize();
  final Insets insets = getInsets();
  this.available.setRect(insets.left, insets.top,
              size.getWidth() - insets.left - insets.right,
              size.getHeight() - insets.top - insets.bottom);
  g2.translate(insets.left, insets.top);
  g2.fill(getArrow(this.type));
}

/**
 * Creates a new spinner.
 *
 * @param value  the initial value.
 */
public Spinner(final int value) {
  super(new BorderLayout());
  this.value = value;
  this.textField = new JTextField(Integer.toString(this.value));
  this.textField.setHorizontalAlignment(SwingConstants.RIGHT);
  add(this.textField);
  this.buttonPanel = new JPanel(new GridLayout(2, 1, 0, 1));
  this.upButton = new ArrowPanel(ArrowPanel.UP);
  this.upButton.addMouseListener(this);
  this.downButton = new ArrowPanel(ArrowPanel.DOWN);
  this.downButton.addMouseListener(this);
  this.buttonPanel.add(this.upButton);
  this.buttonPanel.add(this.downButton);
  add(this.buttonPanel, BorderLayout.EAST);
}

/**
 * Paints the arrow panel.
 *
 * @param g  the graphics device for drawing on.
 */
public void paintComponent(final Graphics g) {
  super.paintComponent(g);
  final Graphics2D g2 = (Graphics2D) g;
  // first determine the size of the drawing area...
  final Dimension size = getSize();
  final Insets insets = getInsets();
  this.available.setRect(insets.left, insets.top,
              size.getWidth() - insets.left - insets.right,
              size.getHeight() - insets.top - insets.bottom);
  g2.translate(insets.left, insets.top);
  g2.fill(getArrow(this.type));
}

/**
 * Returns a shape for the arrow.
 *
 * @param t  the arrow type.
 *
 * @return the arrow shape.
 */
private Shape getArrow(final int t) {
  switch (t) {
    case UP : return getUpArrow();
    case DOWN : return getDownArrow();
    default : return getUpArrow();
  }
}

/**
 * Creates a new spinner.
 *
 * @param value  the initial value.
 */
public Spinner(final int value) {
  super(new BorderLayout());
  this.value = value;
  this.textField = new JTextField(Integer.toString(this.value));
  this.textField.setHorizontalAlignment(SwingConstants.RIGHT);
  add(this.textField);
  this.buttonPanel = new JPanel(new GridLayout(2, 1, 0, 1));
  this.upButton = new ArrowPanel(ArrowPanel.UP);
  this.upButton.addMouseListener(this);
  this.downButton = new ArrowPanel(ArrowPanel.DOWN);
  this.downButton.addMouseListener(this);
  this.buttonPanel.add(this.upButton);
  this.buttonPanel.add(this.downButton);
  add(this.buttonPanel, BorderLayout.EAST);
}

/**
 * Creates a new arrow panel.
 *
 * @param type  the arrow type.
 */
public ArrowPanel(final int type) {
  this.type = type;
  setPreferredSize(new Dimension(14, 9));
}

/**
 * Returns a shape for the arrow.
 *
 * @param t  the arrow type.
 *
 * @return the arrow shape.
 */
private Shape getArrow(final int t) {
  switch (t) {
    case UP : return getUpArrow();
    case DOWN : return getDownArrow();
    default : return getUpArrow();
  }
}

/**
 * Creates a new arrow panel.
 *
 * @param type  the arrow type.
 */
public ArrowPanel(final int type) {
  this.type = type;
  setPreferredSize(new Dimension(14, 9));
}