Class BasicButtonUI

Field Detail

• defaultTextIconGap

  protected int defaultTextIconGap

• defaultTextShiftOffset

  protected int defaultTextShiftOffset

Constructor Detail

• BasicButtonUI

  public BasicButtonUI()

Method Detail

• createUI

  public static ComponentUI createUI(JComponent c)

• getPropertyPrefix

  protected String getPropertyPrefix()

• installUI

  public void installUI(JComponent c)

  Description copied from class: ComponentUI
  Configures the specified component appropriately for the look and feel. This method is invoked when the ComponentUI instance is being installed as the UI delegate on the specified component. This method should completely configure the component for the look and feel, including the following:

  1. Install default property values for color, fonts, borders, icons, opacity, etc. on the component. Whenever possible, property values initialized by the client program should not be overridden.
  2. Install a LayoutManager on the component if necessary.
  3. Create/add any required sub-components to the component.
  4. Create/install event listeners on the component.
  5. Create/install a PropertyChangeListener on the component in order to detect and respond to component property changes appropriately.
  6. Install keyboard UI (mnemonics, traversal, etc.) on the component.
  7. Initialize any appropriate instance data.

  Overrides:

  installUI in class ComponentUI

  Parameters:

  c - the component where this UI delegate is being installed

  See Also:

  ComponentUI.uninstallUI(javax.swing.JComponent), JComponent.setUI(javax.swing.plaf.ComponentUI), JComponent.updateUI()

• installDefaults

  protected void installDefaults(AbstractButton b)

• installListeners

  protected void installListeners(AbstractButton b)

• installKeyboardActions

  protected void installKeyboardActions(AbstractButton b)

• uninstallUI

  public void uninstallUI(JComponent c)

  Description copied from class: ComponentUI
  Reverses configuration which was done on the specified component during installUI. This method is invoked when this UIComponent instance is being removed as the UI delegate for the specified component. This method should undo the configuration performed in installUI, being careful to leave the JComponent instance in a clean state (no extraneous listeners, look-and-feel-specific property objects, etc.). This should include the following:

  1. Remove any UI-set borders from the component.
  2. Remove any UI-set layout managers on the component.
  3. Remove any UI-added sub-components from the component.
  4. Remove any UI-added event/property listeners from the component.
  5. Remove any UI-installed keyboard UI from the component.
  6. Nullify any allocated instance data objects to allow for GC.

  Overrides:

  uninstallUI in class ComponentUI

  Parameters:

  c - the component from which this UI delegate is being removed; this argument is often ignored, but might be used if the UI object is stateless and shared by multiple components

  See Also:

  ComponentUI.installUI(javax.swing.JComponent), JComponent.updateUI()

• uninstallKeyboardActions

  protected void uninstallKeyboardActions(AbstractButton b)

• uninstallListeners

  protected void uninstallListeners(AbstractButton b)

• uninstallDefaults

  protected void uninstallDefaults(AbstractButton b)

• createButtonListener

  protected BasicButtonListener createButtonListener(AbstractButton b)

• getDefaultTextIconGap

  public int getDefaultTextIconGap(AbstractButton b)

• paint

  public void paint(Graphics g,
           JComponent c)

  Description copied from class: ComponentUI
  Paints the specified component appropriately for the look and feel. This method is invoked from the ComponentUI.update method when the specified component is being painted. Subclasses should override this method and use the specified Graphics object to render the content of the component.

  Overrides:

  paint in class ComponentUI

  Parameters:

  g - the Graphics context in which to paint

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

  See Also:

  ComponentUI.update(java.awt.Graphics, javax.swing.JComponent)

• paintIcon

  protected void paintIcon(Graphics g,
               JComponent c,
               Rectangle iconRect)

• paintText

  protected void paintText(Graphics g,
               JComponent c,
               Rectangle textRect,
               String text)

  As of Java 2 platform v 1.4 this method should not be used or overriden. Use the paintText method which takes the AbstractButton argument.

• paintText

  protected void paintText(Graphics g,
               AbstractButton b,
               Rectangle textRect,
               String text)

  Method which renders the text of the current button.

  Parameters:

  g - Graphics context

  b - Current button to render

  textRect - Bounding rectangle to render the text.

  text - String to render

  Since:

  1.4

• paintFocus

  protected void paintFocus(Graphics g,
                AbstractButton b,
                Rectangle viewRect,
                Rectangle textRect,
                Rectangle iconRect)

• paintButtonPressed

  protected void paintButtonPressed(Graphics g,
                        AbstractButton b)

• clearTextShiftOffset

  protected void clearTextShiftOffset()

• setTextShiftOffset

  protected void setTextShiftOffset()

• getTextShiftOffset

  protected int getTextShiftOffset()

• getMinimumSize

  public Dimension getMinimumSize(JComponent c)

  Description copied from class: ComponentUI
  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 ComponentUI

  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:

  a Dimension object or null

  See Also:

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

• getPreferredSize

  public Dimension getPreferredSize(JComponent c)

  Description copied from class: ComponentUI
  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 ComponentUI

  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)

• getMaximumSize

  public Dimension getMaximumSize(JComponent c)

  Description copied from class: ComponentUI
  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 ComponentUI

  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:

  a Dimension object or null

  See Also:

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

• getBaseline

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

  Returns the baseline.

  Overrides:

  getBaseline in class ComponentUI

  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

  Throws:

  NullPointerException - if c is null

  IllegalArgumentException - if width or height is < 0

  Since:

  1.6

  See Also:

  JComponent.getBaseline(int, int)

• getBaselineResizeBehavior

  public Component.BaselineResizeBehavior getBaselineResizeBehavior(JComponent c)

  Returns an enum indicating how the baseline of the component changes as the size changes.

  Overrides:

  getBaselineResizeBehavior in class ComponentUI

  Parameters:

  c - JComponent to return baseline resize behavior for

  Returns:

  an enum indicating how the baseline changes as the component size changes

  Throws:

  NullPointerException - if c is null

  Since:

  1.6

  See Also:

  JComponent.getBaseline(int, int)