| java.lang.Object | ||||
| ↳ | javax.swing.plaf.ComponentUI | |||
| ↳ | javax.swing.plaf.ToolTipUI | |||
| ↳ | javax.swing.plaf.basic.BasicToolTipUI | |||
| ↳ | javax.swing.plaf.metal.MetalToolTipUI | |||
Class Overview
A Metal L&F extension of BasicToolTipUI.
Warning:
Serialized objects of this class will not be compatible with
future Swing releases. The current serialization support is
appropriate for short term storage or RMI between applications running
the same version of Swing. As of 1.4, support for long term storage
of all JavaBeansTM
has been added to the java.beans package.
Please see XMLEncoder.
Summary
| Constants | |||||||||||
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| int | padSpaceBetweenStrings | ||||||||||
| Public Constructors | |||||||||||
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| Public Methods | |||||||||||
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Returns the specified component's preferred size appropriate for
the look and feel.
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Configures the specified component appropriate for the look and feel.
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Paints the specified component appropriate for the look and feel.
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Reverses configuration which was done on the specified component during
installUI. | |||||||||||
| Protected Methods | |||||||||||
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[Expand]
Inherited Methods | |||||||||||
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From class
javax.swing.plaf.basic.BasicToolTipUI
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From class
javax.swing.plaf.ComponentUI
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From class
java.lang.Object
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Constants
public static final int padSpaceBetweenStrings
Public Constructors
public MetalToolTipUI ()
Public Methods
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.
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 |
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public void installUI (JComponent c)
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:
- 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.
- Install a
LayoutManageron the component if necessary. - Create/add any required sub-components to the component.
- Create/install event listeners on the component.
- Create/install a
PropertyChangeListeneron the component in order to detect and respond to component property changes appropriately. - Install keyboard UI (mnemonics, traversal, etc.) on the component.
- Initialize any appropriate instance data.
Parameters
| c | the component where this UI delegate is being installed |
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public void paint (Graphics g, JComponent c)
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.
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 |
public void uninstallUI (JComponent c)
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:
- Remove any UI-set borders from the component.
- Remove any UI-set layout managers on the component.
- Remove any UI-added sub-components from the component.
- Remove any UI-added event/property listeners from the component.
- Remove any UI-installed keyboard UI from the component.
- Nullify any allocated instance data objects to allow for GC.
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 |
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