API java : BasicButtonUI


javax.swing.plaf.basic
Class BasicButtonUI

java.lang.Object
  extended by javax.swing.plaf.ComponentUI
      extended by javax.swing.plaf.ButtonUI
          extended by javax.swing.plaf.basic.BasicButtonUI
Direct Known Subclasses:
BasicToggleButtonUI, MetalButtonUI

public class BasicButtonUI
extends ButtonUI

BasicButton implementation


Field Summary
protected  int defaultTextIconGap
           
protected  int defaultTextShiftOffset
           
 
Constructor Summary
BasicButtonUI()
           
 
Method Summary
protected  void clearTextShiftOffset()
           
protected  BasicButtonListener createButtonListener(AbstractButton b)
           
static ComponentUI createUI(JComponent c)
           
 int getDefaultTextIconGap(AbstractButton b)
           
 Dimension getMaximumSize(JComponent c)
          Returns the specified component's maximum size appropriate for the look and feel.
 Dimension getMinimumSize(JComponent c)
          Returns the specified component's minimum size appropriate for the look and feel.
 Dimension getPreferredSize(JComponent c)
          Returns the specified component's preferred size appropriate for the look and feel.
protected  String getPropertyPrefix()
           
protected  int getTextShiftOffset()
           
protected  void installDefaults(AbstractButton b)
           
protected  void installKeyboardActions(AbstractButton b)
           
protected  void installListeners(AbstractButton b)
           
 void installUI(JComponent c)
          Configures the specified component appropriate for the look and feel.
 void paint(Graphics g, JComponent c)
          Paints the specified component appropriate for the look and feel.
protected  void paintButtonPressed(Graphics g, AbstractButton b)
           
protected  void paintFocus(Graphics g, AbstractButton b, Rectangle viewRect, Rectangle textRect, Rectangle iconRect)
           
protected  void paintIcon(Graphics g, JComponent c, Rectangle iconRect)
           
protected  void paintText(Graphics g, AbstractButton b, Rectangle textRect, String text)
          Method which renders the text of the current button.
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.
protected  void setTextShiftOffset()
           
protected  void uninstallDefaults(AbstractButton b)
           
protected  void uninstallKeyboardActions(AbstractButton b)
           
protected  void uninstallListeners(AbstractButton b)
           
 void uninstallUI(JComponent c)
          Reverses configuration which was done on the specified component during installUI.
 
Methods inherited from class javax.swing.plaf.ComponentUI
contains, getAccessibleChild, getAccessibleChildrenCount, update
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

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 appropriate 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 any 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 appropriate 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)

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