Class MetalComboBoxUI
java.lang.Object
javax.swing.plaf.ComponentUI
javax.swing.plaf.ComboBoxUI
javax.swing.plaf.basic.BasicComboBoxUI
javax.swing.plaf.metal.MetalComboBoxUI
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
has been added to the java.beans
package.
Please see XMLEncoder
.
- See Also:
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Nested Class Summary
Nested ClassesModifier and TypeClassDescriptionclass
This class should be treated as a "protected" inner class.class
Deprecated.As of Java 2 platform v1.4.class
This class should be treated as a "protected" inner class.Nested classes/interfaces declared in class BasicComboBoxUI
BasicComboBoxUI.ComboBoxLayoutManager, BasicComboBoxUI.FocusHandler, BasicComboBoxUI.ItemHandler, BasicComboBoxUI.KeyHandler, BasicComboBoxUI.ListDataHandler, BasicComboBoxUI.PropertyChangeHandler
Modifier and TypeClassDescriptionclass
This layout manager handles the 'standard' layout of combo boxes.class
This listener hides the popup when the focus is lost.class
This listener watches for changes to the selection in the combo box.class
This listener checks to see if the key event isn't a navigation key.class
This listener watches for changes in theComboBoxModel
.class
This listener watches for bound properties that have changed in the combo box. -
Field Summary
Fields declared in class BasicComboBoxUI
arrowButton, cachedMinimumSize, comboBox, currentValuePane, editor, focusListener, hasFocus, isMinimumSizeDirty, itemListener, keyListener, listBox, listDataListener, padding, popup, popupKeyListener, popupMouseListener, popupMouseMotionListener, propertyChangeListener, squareButton
Modifier and TypeFieldDescriptionprotected JButton
The arrow button that invokes the popup.protected Dimension
The cached minimum preferred size.The instance ofJComboBox
.protected CellRendererPane
Used to render the currently selected item in the combo box.protected Component
The Component that theComboBoxEditor
uses for editing.protected FocusListener
This protected field is implementation specific.protected boolean
This protected field is implementation specific.protected boolean
The flag for recalculating the minimum preferred size.protected ItemListener
This protected field is implementation specific.protected KeyListener
This protected field is implementation specific.This list is for drawing the current item in the combo box.protected ListDataListener
This protected field is implementation specific.protected Insets
If specified, these insets act as padding around the cell renderer when laying out and painting the "selected" item in the combo box.protected ComboPopup
The implementation ofComboPopup
that is used to show the popup.protected KeyListener
TheKeyListener
listens to events.protected MouseListener
TheMouseListener
listens to events.protected MouseMotionListener
TheMouseMotionListener
listens to events.protected PropertyChangeListener
This protected field is implementation specific.protected boolean
Indicates whether or not the combo box button should be square. -
Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionvoid
This protected method is implementation specific and should be private. do not call or override.Creates aPropertyChangeListener
which will be added to the combo box.static ComponentUI
Constructs an instance ofMetalComboBoxUI
.protected void
Deprecated.As of Java 2 platform v1.4.int
getBaseline
(JComponent c, int width, int height) Returns the baseline.void
layoutComboBox
(Container parent, MetalComboBoxUI.MetalComboBoxLayoutManager manager) Lays out theJComboBox
in theparent
container.void
paintCurrentValue
(Graphics g, Rectangle bounds, boolean hasFocus) If necessary paints the currently selected item.void
paintCurrentValueBackground
(Graphics g, Rectangle bounds, boolean hasFocus) If necessary paints the background of the currently selected item.protected void
Deprecated.As of Java 2 platform v1.4.void
This protected method is implementation specific and should be private.Methods declared in class BasicComboBoxUI
addEditor, configureArrowButton, createArrowButton, createEditor, createFocusListener, createItemListener, createKeyListener, createLayoutManager, createListDataListener, createPopup, createRenderer, getBaselineResizeBehavior, getDefaultSize, getDisplaySize, getInsets, getMinimumSize, getSizeForComponent, installComponents, installDefaults, installKeyboardActions, installListeners, isFocusTraversable, isNavigationKey, isPopupVisible, rectangleForCurrentValue, removeEditor, selectNextPossibleValue, selectPreviousPossibleValue, setPopupVisible, toggleOpenClose, unconfigureArrowButton, uninstallComponents, uninstallDefaults, uninstallKeyboardActions, uninstallListeners
Modifier and TypeMethodDescriptionvoid
This public method is implementation specific and should be private. do not call or override.void
This public method is implementation specific and should be private.protected JButton
Creates a button which will be used as the control to show or hide the popup portion of the combo box.protected ComboBoxEditor
Creates the default editor that will be used in editable combo boxes.protected FocusListener
Creates aFocusListener
which will be added to the combo box.protected ItemListener
Creates anItemListener
which will be added to the combo box.protected KeyListener
Creates aKeyListener
which will be added to the combo box.protected LayoutManager
Creates a layout manager for managing the components which make up the combo box.protected ListDataListener
Creates a list data listener which will be added to theComboBoxModel
.protected ComboPopup
Creates the popup portion of the combo box.protected ListCellRenderer
<Object> Creates the default renderer that will be used in a non-editiable combo box.Returns an enum indicating how the baseline of the component changes as the size changes.protected Dimension
Return the default size of an empty display area of the combo box using the current renderer and font.protected Dimension
Returns the calculated size of the display area.protected Insets
Gets the insets from the JComboBox.The minimum size is the size of the display area plus insets plus the button.protected Dimension
getSizeForComponent
(Component comp) Returns the size a component would have if used as a cell renderer.protected void
Creates and initializes the components which make up the aggregate combo box.protected void
Installs the default colors, default font, default renderer, and default editor into the JComboBox.protected void
Adds keyboard actions to the JComboBox.protected void
Creates and installs listeners for the combo box and its model.boolean
isFocusTraversable
(JComboBox<?> c) Determines if the JComboBox is focus traversable.protected boolean
isNavigationKey
(int keyCode) Returns whether or not the supplied keyCode maps to a key that is used for navigation.boolean
isPopupVisible
(JComboBox<?> c) Tells if the popup is visible or not.protected Rectangle
Returns the area that is reserved for drawing the currently selected item.void
This public method is implementation specific and should be private. do not call or override.protected void
Selects the next item in the list.protected void
Selects the previous item in the list.void
setPopupVisible
(JComboBox<?> c, boolean v) Hides the popup.protected void
Hides the popup if it is showing and shows the popup if it is hidden.void
This public method is implementation specific and should be private.protected void
The aggregate components which comprise the combo box are unregistered and uninitialized.protected void
Uninstalls the default colors, default font, default renderer, and default editor from the combo box.protected void
Removes the focus InputMap and ActionMap.protected void
Removes the installed listeners from the combo box and its model.Methods declared in class ComponentUI
contains, getAccessibleChild, getAccessibleChildrenCount, getMaximumSize, getPreferredSize, installUI, paint, uninstallUI, update
Modifier and TypeMethodDescriptionboolean
contains
(JComponent c, int x, int y) Returnstrue
if the specified x,y location is contained within the look and feel's defined shape of the specified component.getAccessibleChild
(JComponent c, int i) Returns thei
thAccessible
child of the object.int
Returns the number of accessible children in the object.Returns the specified component's maximum size appropriate for the look and feel.Returns the specified component's preferred size appropriate for the look and feel.void
Configures the specified component appropriately for the look and feel.void
paint
(Graphics g, JComponent c) Paints the specified component appropriately for the look and feel.void
Reverses configuration which was done on the specified component duringinstallUI
.void
update
(Graphics g, JComponent c) Notifies this UI delegate that it is time to paint the specified component.Methods declared in class Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
Modifier and TypeMethodDescriptionprotected Object
clone()
Creates and returns a copy of this object.boolean
Indicates whether some other object is "equal to" this one.protected void
finalize()
Deprecated, for removal: This API element is subject to removal in a future version.Finalization is deprecated and subject to removal in a future release.final Class
<?> getClass()
Returns the runtime class of thisObject
.int
hashCode()
Returns a hash code value for this object.final void
notify()
Wakes up a single thread that is waiting on this object's monitor.final void
Wakes up all threads that are waiting on this object's monitor.toString()
Returns a string representation of the object.final void
wait()
Causes the current thread to wait until it is awakened, typically by being notified or interrupted.final void
wait
(long timeoutMillis) Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.final void
wait
(long timeoutMillis, int nanos) Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.
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Constructor Details
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MetalComboBoxUI
public MetalComboBoxUI()Constructs aMetalComboBoxUI
.
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Method Details
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createUI
Constructs an instance ofMetalComboBoxUI
.- Parameters:
c
- a component- Returns:
- an instance of
MetalComboBoxUI
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paintCurrentValue
If necessary paints the currently selected item.- Overrides:
paintCurrentValue
in classBasicComboBoxUI
- Parameters:
g
- Graphics to paint tobounds
- Region to paint current value tohasFocus
- whether or not the JComboBox has focus- Throws:
NullPointerException
- if any of the arguments are null.- Since:
- 1.5
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paintCurrentValueBackground
If necessary paints the background of the currently selected item.- Overrides:
paintCurrentValueBackground
in classBasicComboBoxUI
- Parameters:
g
- Graphics to paint tobounds
- Region to paint background tohasFocus
- whether or not the JComboBox has focus- Throws:
NullPointerException
- if any of the arguments are null.- Since:
- 1.5
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getBaseline
Returns the baseline.- Overrides:
getBaseline
in classBasicComboBoxUI
- Parameters:
c
-JComponent
baseline is being requested forwidth
- the width to get the baseline forheight
- the height to get the baseline for- Returns:
- baseline or a value < 0 indicating there is no reasonable baseline
- Throws:
NullPointerException
- ifc
isnull
IllegalArgumentException
- if width or height is < 0- Since:
- 1.6
- See Also:
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createPropertyChangeListener
Description copied from class:BasicComboBoxUI
Creates aPropertyChangeListener
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 classBasicComboBoxUI
- Returns:
- an instance of a
PropertyChangeListener
or null
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editablePropertyChanged
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.- Parameters:
e
- an instance ofPropertyChangeEvent
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layoutComboBox
Lays out theJComboBox
in theparent
container.- Parameters:
parent
- a containermanager
- an instance ofMetalComboBoxLayoutManager
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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 classBasicComboBoxUI
- See Also:
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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 classBasicComboBoxUI
- See Also:
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