Java javax.swing.plaf.synth Class SynthLabelUI（JDK8）

Constructor Detail

• SynthLabelUI

  public SynthLabelUI()

Method Detail

• createUI

  public static ComponentUI createUI(JComponent c)

  Returns the LabelUI implementation used for the skins look and feel.

  Parameters:

  c - component to create UI object for

  Returns:

  the UI object

• installDefaults

  protected void installDefaults(JLabel c)

  Installs default properties.

  Overrides:

  installDefaults in class BasicLabelUI

  Parameters:

  c - an instance of JLabel

• uninstallDefaults

  protected void uninstallDefaults(JLabel c)

  Uninstalls default properties.

  Overrides:

  uninstallDefaults in class BasicLabelUI

  Parameters:

  c - an instance of JLabel

• getContext

  public SynthContext getContext(JComponent c)

  Returns the Context for the specified component.

  Specified by:

  getContext in interface SynthUI

  Parameters:

  c - Component requesting SynthContext.

  Returns:

  SynthContext describing component.

• getBaseline

  public int getBaseline(JComponent c,
                         int width,
                         int height)

  Returns the baseline.

  Overrides:

  getBaseline in class BasicLabelUI

  Parameters:

  c - JComponent baseline is being requested for

  width - the width to get the baseline for

  height - the height to get the baseline for

  Returns:

  baseline or a value < 0 indicating there is no reasonable baseline

  See Also:

  JComponent.getBaseline(int, int)

• update

  public void update(Graphics g,
                     JComponent c)

  Notifies this UI delegate to repaint the specified component. This method paints the component background, then calls the paint(SynthContext,Graphics) method.

  In general, this method does not need to be overridden by subclasses. All Look and Feel rendering code should reside in the paint method.

  Overrides:

  update in class ComponentUI

  Parameters:

  g - the Graphics object used for painting

  c - the component being painted

  See Also:

  paint(SynthContext,Graphics)

• paint

  public void paint(Graphics g,
                    JComponent c)

  Paints the specified component according to the Look and Feel.

  This method is not used by Synth Look and Feel. Painting is handled by the paint(SynthContext,Graphics) method.

  Overrides:

  paint in class BasicLabelUI

  Parameters:

  g - the Graphics object used for painting

  c - the component being painted

  See Also:

  paint(SynthContext,Graphics)

• paint

  protected void paint(SynthContext context,
                       Graphics g)

  Paints the specified component.

  Parameters:

  context - context for the component being painted

  g - the Graphics object used for painting

  See Also:

  update(Graphics,JComponent)

• paintBorder

  public void paintBorder(SynthContext context,
                          Graphics g,
                          int x,
                          int y,
                          int w,
                          int h)

  Paints the border.

  Specified by:

  paintBorder in interface SynthUI

  Parameters:

  context - a component context

  g - Graphics to paint on

  x - the X coordinate

  y - the Y coordinate

  w - width of the border

  h - height of the border

• getPreferredSize

  public Dimension getPreferredSize(JComponent c)

  Returns the specified component's preferred size appropriate for the look and feel. If null is returned, the preferred size will be calculated by the component's layout manager instead (this is the preferred approach for any component with a specific layout manager installed). The default implementation of this method returns null.

  Overrides:

  getPreferredSize in class BasicLabelUI

  Parameters:

  c - the component whose preferred size is being queried; this argument is often ignored, but might be used if the UI object is stateless and shared by multiple components

  See Also:

  JComponent.getPreferredSize(), LayoutManager.preferredLayoutSize(java.awt.Container)

• getMinimumSize

  public Dimension getMinimumSize(JComponent c)

  Returns the specified component's minimum size appropriate for the look and feel. If null is returned, the minimum size will be calculated by the component's layout manager instead (this is the preferred approach for any component with a specific layout manager installed). The default implementation of this method invokes getPreferredSize and returns that value.

  Overrides:

  getMinimumSize in class BasicLabelUI

  Parameters:

  c - the component whose minimum size is being queried; this argument is often ignored, but might be used if the UI object is stateless and shared by multiple components

  Returns:

  getPreferredSize(c)

  See Also:

  JComponent.getMinimumSize(), LayoutManager.minimumLayoutSize(java.awt.Container), ComponentUI.getPreferredSize(javax.swing.JComponent)

• getMaximumSize

  public Dimension getMaximumSize(JComponent c)

  Returns the specified component's maximum size appropriate for the look and feel. If null is returned, the maximum size will be calculated by the component's layout manager instead (this is the preferred approach for any component with a specific layout manager installed). The default implementation of this method invokes getPreferredSize and returns that value.

  Overrides:

  getMaximumSize in class BasicLabelUI

  Parameters:

  c - the component whose maximum size is being queried; this argument is often ignored, but might be used if the UI object is stateless and shared by multiple components

  Returns:

  getPreferredSize(c)

  See Also:

  JComponent.getMaximumSize(), LayoutManager2.maximumLayoutSize(java.awt.Container)

• propertyChange

  public void propertyChange(PropertyChangeEvent e)

  This method gets called when a bound property is changed.

  Specified by:

  propertyChange in interface PropertyChangeListener

  Overrides:

  propertyChange in class BasicLabelUI

  Parameters:

  e - A PropertyChangeEvent object describing the event source and the property that has changed.