Java javax.swing.plaf.basic Class BasicArrowButton（JDK8）

Field Detail

• direction

  protected int direction

  The direction of the arrow. One of SwingConstants.NORTH, SwingConstants.SOUTH, SwingConstants.EAST or SwingConstants.WEST.

Constructor Detail

• BasicArrowButton

  public BasicArrowButton(int direction,
                          Color background,
                          Color shadow,
                          Color darkShadow,
                          Color highlight)

  Creates a BasicArrowButton whose arrow is drawn in the specified direction and with the specified colors.

  Parameters:

  direction - the direction of the arrow; one of SwingConstants.NORTH, SwingConstants.SOUTH, SwingConstants.EAST or SwingConstants.WEST

  background - the background color of the button

  shadow - the color of the shadow

  darkShadow - the color of the dark shadow

  highlight - the color of the highlight

  Since:

  1.4

• BasicArrowButton

  public BasicArrowButton(int direction)

  Creates a BasicArrowButton whose arrow is drawn in the specified direction.

  Parameters:

  direction - the direction of the arrow; one of SwingConstants.NORTH, SwingConstants.SOUTH, SwingConstants.EAST or SwingConstants.WEST

Method Detail

• getDirection

  public int getDirection()

  Returns the direction of the arrow.

• setDirection

  public void setDirection(int direction)

  Sets the direction of the arrow.

  Parameters:

  direction - the direction of the arrow; one of of SwingConstants.NORTH, SwingConstants.SOUTH, SwingConstants.EAST or SwingConstants.WEST

• paint

  public void paint(Graphics g)

  Description copied from class: JComponent
  Invoked by Swing to draw components. Applications should not invoke paint directly, but should instead use the repaint method to schedule the component for redrawing.

  This method actually delegates the work of painting to three protected methods: paintComponent, paintBorder, and paintChildren. They're called in the order listed to ensure that children appear on top of component itself. Generally speaking, the component and its children should not paint in the insets area allocated to the border. Subclasses can just override this method, as always. A subclass that just wants to specialize the UI (look and feel) delegate's paint method should just override paintComponent.

  Overrides:

  paint in class JComponent

  Parameters:

  g - the Graphics context in which to paint

  See Also:

  JComponent.paintComponent(java.awt.Graphics), JComponent.paintBorder(java.awt.Graphics), JComponent.paintChildren(java.awt.Graphics), JComponent.getComponentGraphics(java.awt.Graphics), JComponent.repaint(long, int, int, int, int)

• getPreferredSize

  public Dimension getPreferredSize()

  Returns the preferred size of the BasicArrowButton.

  Overrides:

  getPreferredSize in class JComponent

  Returns:

  the preferred size

  See Also:

  JComponent.setPreferredSize(java.awt.Dimension), ComponentUI

• getMinimumSize

  public Dimension getMinimumSize()

  Returns the minimum size of the BasicArrowButton.

  Overrides:

  getMinimumSize in class JComponent

  Returns:

  the minimum size

  See Also:

  JComponent.setMinimumSize(java.awt.Dimension), ComponentUI

• getMaximumSize

  public Dimension getMaximumSize()

  Returns the maximum size of the BasicArrowButton.

  Overrides:

  getMaximumSize in class JComponent

  Returns:

  the maximum size

  See Also:

  JComponent.setMaximumSize(java.awt.Dimension), ComponentUI

• isFocusTraversable

  public boolean isFocusTraversable()

  Returns whether the arrow button should get the focus. BasicArrowButtons are used as a child component of composite components such as JScrollBar and JComboBox. Since the composite component typically gets the focus, this method is overriden to return false.

  Overrides:

  isFocusTraversable in class Component

  Returns:

  false

  See Also:

  Component.setFocusable(boolean)

• paintTriangle

  public void paintTriangle(Graphics g,
                            int x,
                            int y,
                            int size,
                            int direction,
                            boolean isEnabled)

  Paints a triangle.

  Parameters:

  g - the Graphics to draw to

  x - the x coordinate

  y - the y coordinate

  size - the size of the triangle to draw

  direction - the direction in which to draw the arrow; one of SwingConstants.NORTH, SwingConstants.SOUTH, SwingConstants.EAST or SwingConstants.WEST

  isEnabled - whether or not the arrow is drawn enabled