javax.swing.plaf.metal
Class MetalComboBoxUI

java.lang.Object
  |
  +--javax.swing.plaf.ComponentUI
        |
        +--javax.swing.plaf.ComboBoxUI
              |
              +--javax.swing.plaf.basic.BasicComboBoxUI
                    |
                    +--javax.swing.plaf.metal.MetalComboBoxUI

public class MetalComboBoxUI

extends BasicComboBoxUI

Metal UI for JComboBox

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 JavaBeans^TM has been added to the java.beans package. Please see XMLEncoder.

See Also:

MetalComboBoxEditor, MetalComboBoxButton

Nested Class Summary

class	MetalComboBoxUI.MetalComboBoxLayoutManager This inner class is marked "public" due to a compiler bug.
class	MetalComboBoxUI.MetalComboPopup Deprecated. As of Java 2 platform v1.4.
class	MetalComboBoxUI.MetalPropertyChangeListener This inner class is marked "public" due to a compiler bug.

Nested classes inherited from class javax.swing.plaf.basic.BasicComboBoxUI

BasicComboBoxUI.FocusHandler, BasicComboBoxUI.ItemHandler, BasicComboBoxUI.KeyHandler, BasicComboBoxUI.ListDataHandler

Field Summary

Fields inherited from class javax.swing.plaf.basic.BasicComboBoxUI

arrowButton, cachedMinimumSize, comboBox, currentValuePane, editor, focusListener, hasFocus, isMinimumSizeDirty, itemListener, keyListener, listBox, listDataListener, popup, popupKeyListener, popupMouseListener, popupMouseMotionListener, propertyChangeListener

Constructor Summary

MetalComboBoxUI()

Method Summary

void	configureEditor() This protected method is implementation specific and should be private.
protected JButton	createArrowButton() Creates an button which will be used as the control to show or hide the popup portion of the combo box.
protected ComboBoxEditor	createEditor() Creates the default editor that will be used in editable combo boxes.
protected LayoutManager	createLayoutManager() Creates a layout manager for managing the components which make up the combo box.
protected ComboPopup	createPopup() Creates the popup portion of the combo box.
PropertyChangeListener	createPropertyChangeListener() Creates a PropertyChangeListener which will be added to the combo box.
static ComponentUI	createUI(JComponent c) Returns an instance of the UI delegate for the specified component.
protected void	editablePropertyChanged(PropertyChangeEvent e) Deprecated. As of Java 2 platform v1.4.
Dimension	getMinimumSize(JComponent c) The minumum size is the size of the display area plus insets plus the button.
void	layoutComboBox(Container parent, MetalComboBoxUI.MetalComboBoxLayoutManager manager)
void	paint(Graphics g, JComponent c) Paints the specified component appropriate for the look and feel.
protected void	removeListeners() Deprecated. As of Java 2 platform v1.4.
void	unconfigureEditor() This protected method is implementation specific and should be private.

Methods inherited from class javax.swing.plaf.basic.BasicComboBoxUI

addEditor, configureArrowButton, createFocusListener, createItemListener, createKeyListener, createListDataListener, createRenderer, getAccessibleChild, getAccessibleChildrenCount, getDefaultSize, getDisplaySize, getInsets, getMaximumSize, getPreferredSize, installComponents, installDefaults, installKeyboardActions, installListeners, installUI, isFocusTraversable, isNavigationKey, isPopupVisible, paintCurrentValue, paintCurrentValueBackground, rectangleForCurrentValue, removeEditor, selectNextPossibleValue, selectPreviousPossibleValue, setPopupVisible, toggleOpenClose, unconfigureArrowButton, uninstallComponents, uninstallDefaults, uninstallKeyboardActions, uninstallListeners, uninstallUI

Methods inherited from class javax.swing.plaf.ComponentUI

contains, update

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

MetalComboBoxUI

public MetalComboBoxUI()

Method Detail

createUI

public static ComponentUI createUI(JComponent c)

Description copied from class: ComponentUI

Returns an instance of the UI delegate for the specified component. Each subclass must provide its own static createUI method that returns an instance of that UI delegate subclass. If the UI delegate subclass is stateless, it may return an instance that is shared by multiple components. If the UI delegate is stateful, then it should return a new instance per component. The default implementation of this method throws an error, as it should never be invoked.

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 BasicComboBoxUI

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)

createEditor

protected ComboBoxEditor createEditor()

Description copied from class: BasicComboBoxUI

Creates the default editor that will be used in editable combo boxes. A default editor will be used only if an editor has not been explicitly set with setEditor.

Overrides:

createEditor in class BasicComboBoxUI

Returns:

a ComboBoxEditor used for the combo box

See Also:

JComboBox.setEditor(javax.swing.ComboBoxEditor)

createPopup

protected ComboPopup createPopup()

Description copied from class: BasicComboBoxUI

Creates the popup portion of the combo box.

Overrides:

createPopup in class BasicComboBoxUI

Returns:

an instance of ComboPopup

See Also:

ComboPopup

createArrowButton

protected JButton createArrowButton()

Description copied from class: BasicComboBoxUI

Creates an button which will be used as the control to show or hide the popup portion of the combo box.

Overrides:

createArrowButton in class BasicComboBoxUI

Returns:

a button which represents the popup control

createPropertyChangeListener

public PropertyChangeListener createPropertyChangeListener()

Description copied from class: BasicComboBoxUI

Creates a PropertyChangeListener which will be added to the combo box. If this method returns null then it will not be added to the combo box.

Overrides:

createPropertyChangeListener in class BasicComboBoxUI

Returns:

an instance of a PropertyChangeListener or null

editablePropertyChanged

protected void editablePropertyChanged(PropertyChangeEvent e)

Deprecated. As of Java 2 platform v1.4.

As of Java 2 platform v1.4 this method is no longer used. Do not call or override. All the functionality of this method is in the MetalPropertyChangeListener.

createLayoutManager

protected LayoutManager createLayoutManager()

Description copied from class: BasicComboBoxUI

Creates a layout manager for managing the components which make up the combo box.

Overrides:

createLayoutManager in class BasicComboBoxUI

Returns:

an instance of a layout manager

layoutComboBox

public void layoutComboBox(Container parent,
                           MetalComboBoxUI.MetalComboBoxLayoutManager manager)

removeListeners

protected void removeListeners()

Deprecated. As of Java 2 platform v1.4.

As of Java 2 platform v1.4 this method is no longer used.

configureEditor

public void configureEditor()

Description copied from class: BasicComboBoxUI

This protected method is implementation specific and should be private. do not call or override.

Overrides:

configureEditor in class BasicComboBoxUI

See Also:

addEditor

unconfigureEditor

public void unconfigureEditor()

Description copied from class: BasicComboBoxUI

This protected method is implementation specific and should be private. Do not call or override.

Overrides:

unconfigureEditor in class BasicComboBoxUI

See Also:

addEditor

getMinimumSize

public Dimension getMinimumSize(JComponent c)

Description copied from class: BasicComboBoxUI

The minumum size is the size of the display area plus insets plus the button.

Overrides:

getMinimumSize in class BasicComboBoxUI

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)