Spec-Zone.ru › OpenJDK 27

Class MetalComboBoxUI.MetalComboPopup

java.lang.Object
java.awt.Component
java.awt.Container
javax.swing.JComponent
javax.swing.JPopupMenu
javax.swing.plaf.basic.BasicComboPopup
javax.swing.plaf.metal.MetalComboBoxUI.MetalComboPopup
All Implemented Interfaces:
ImageObserver, MenuContainer, Serializable, Accessible, MenuElement, ComboPopup
Enclosing class:
MetalComboBoxUI
@Deprecated public class MetalComboBoxUI.MetalComboPopup extends BasicComboPopup
Deprecated.
As of Java 2 platform v1.4.
This class should be treated as a "protected" inner class. Instantiate it only within subclasses of MetalComboBoxUI. This class is now obsolete and doesn't do anything and is only included for backwards API compatibility. Do not call or override.

Nested Class Summary

Nested classes/interfaces declared in class BasicComboPopup

BasicComboPopup.InvocationKeyHandler, BasicComboPopup.InvocationMouseHandler, BasicComboPopup.InvocationMouseMotionHandler, BasicComboPopup.ItemHandler, BasicComboPopup.ListDataHandler, BasicComboPopup.ListMouseHandler, BasicComboPopup.ListMouseMotionHandler, BasicComboPopup.ListSelectionHandler, BasicComboPopup.PropertyChangeHandler
Modifier and Type Class Description
class  BasicComboPopup.InvocationKeyHandler
As of Java 2 platform v 1.4, this class is now obsolete and is only included for backwards API compatibility.
protected class  BasicComboPopup.InvocationMouseHandler
A listener to be registered upon the combo box (not its popup menu) to handle mouse events that affect the state of the popup menu.
protected class  BasicComboPopup.InvocationMouseMotionHandler
This listener watches for dragging and updates the current selection in the list if it is dragging over the list.
protected class  BasicComboPopup.ItemHandler
This listener watches for changes to the selection in the combo box.
class  BasicComboPopup.ListDataHandler
As of 1.4, this class is now obsolete, doesn't do anything, and is only included for backwards API compatibility.
protected class  BasicComboPopup.ListMouseHandler
This listener hides the popup when the mouse is released in the list.
protected class  BasicComboPopup.ListMouseMotionHandler
This listener changes the selected item as you move the mouse over the list.
protected class  BasicComboPopup.ListSelectionHandler
As of Java 2 platform v 1.4, this class is now obsolete, doesn't do anything, and is only included for backwards API compatibility.
protected class  BasicComboPopup.PropertyChangeHandler
This listener watches for bound properties that have changed in the combo box.

Nested classes/interfaces declared in class JPopupMenu

JPopupMenu.AccessibleJPopupMenu, JPopupMenu.Separator
Modifier and Type Class Description
protected class  JPopupMenu.AccessibleJPopupMenu
This class implements accessibility support for the JPopupMenu class.
static class  JPopupMenu.Separator
A popup menu-specific separator.

Nested classes/interfaces declared in class JComponent

JComponent.AccessibleJComponent
Modifier and Type Class Description
class  JComponent.AccessibleJComponent
Inner class of JComponent used to provide default support for accessibility.

Nested classes/interfaces declared in class Container

Container.AccessibleAWTContainer
Modifier and Type Class Description
protected class  Container.AccessibleAWTContainer
Inner class of Container used to provide default support for accessibility.

Nested classes/interfaces declared in class Component

Component.AccessibleAWTComponent, Component.BaselineResizeBehavior, Component.BltBufferStrategy, Component.FlipBufferStrategy
Modifier and Type Class Description
protected class  Component.AccessibleAWTComponent
Inner class of Component used to provide default support for accessibility.
static enum  Component.BaselineResizeBehavior
Enumeration of the common ways the baseline of a component can change as the size changes.
protected class  Component.BltBufferStrategy
Inner class for blitting offscreen surfaces to a component.
protected class  Component.FlipBufferStrategy
Inner class for flipping buffers on a component.

Field Summary

Fields declared in class BasicComboPopup

autoscrollTimer, comboBox, hasEntered, isAutoScrolling, itemListener, keyListener, list, listDataListener, listMouseListener, listMouseMotionListener, listSelectionListener, mouseListener, mouseMotionListener, propertyChangeListener, SCROLL_DOWN, SCROLL_UP, scrollDirection, scroller, valueIsAdjusting
Modifier and Type Field Description
protected Timer autoscrollTimer
This protected field is implementation specific.
protected JComboBox<Object> comboBox
The instance of JComboBox.
protected boolean hasEntered
true if the mouse cursor is in the popup.
protected boolean isAutoScrolling
If true the auto-scrolling is enabled.
protected ItemListener itemListener
This protected field is implementation specific.
protected KeyListener keyListener
This protected field is implementation specific.
protected JList<Object> list
This protected field is implementation specific.
protected ListDataListener listDataListener
This protected field is implementation specific.
protected MouseListener listMouseListener
This protected field is implementation specific.
protected MouseMotionListener listMouseMotionListener
This protected field is implementation specific.
protected ListSelectionListener listSelectionListener
This protected field is implementation specific.
protected MouseListener mouseListener
This protected field is implementation specific.
protected MouseMotionListener mouseMotionListener
This protected field is implementation specific.
protected PropertyChangeListener propertyChangeListener
This protected field is implementation specific.
protected static final int SCROLL_DOWN
The direction of scrolling down.
protected static final int SCROLL_UP
The direction of scrolling up.
protected int scrollDirection
The direction of scrolling.
protected JScrollPane scroller
This protected field is implementation specific.
protected boolean valueIsAdjusting
As of Java 2 platform v1.4 this previously undocumented field is no longer used.

Fields declared in class JComponent

listenerList, TOOL_TIP_TEXT_KEY, ui, UNDEFINED_CONDITION, WHEN_ANCESTOR_OF_FOCUSED_COMPONENT, WHEN_FOCUSED, WHEN_IN_FOCUSED_WINDOW
Modifier and Type Field Description
protected EventListenerList listenerList
A list of event listeners for this component.
static final String TOOL_TIP_TEXT_KEY
The comment to display when the cursor is over the component, also known as a "value tip", "flyover help", or "flyover label".
protected ComponentUI ui
The look and feel delegate for this component.
static final int UNDEFINED_CONDITION
Constant used by some of the APIs to mean that no condition is defined.
static final int WHEN_ANCESTOR_OF_FOCUSED_COMPONENT
Constant used for registerKeyboardAction that means that the command should be invoked when the receiving component is an ancestor of the focused component or is itself the focused component.
static final int WHEN_FOCUSED
Constant used for registerKeyboardAction that means that the command should be invoked when the component has the focus.
static final int WHEN_IN_FOCUSED_WINDOW
Constant used for registerKeyboardAction that means that the command should be invoked when the receiving component is in the window that has the focus or is itself the focused component.

Fields declared in class Component

accessibleContext, BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT
Modifier and Type Field Description
protected AccessibleContext accessibleContext
The AccessibleContext associated with this Component.
static final float BOTTOM_ALIGNMENT
Ease-of-use constant for getAlignmentY.
static final float CENTER_ALIGNMENT
Ease-of-use constant for getAlignmentY and getAlignmentX.
static final float LEFT_ALIGNMENT
Ease-of-use constant for getAlignmentX.
static final float RIGHT_ALIGNMENT
Ease-of-use constant for getAlignmentX.
static final float TOP_ALIGNMENT
Ease-of-use constant for getAlignmentY().

Fields declared in interface ImageObserver

ABORT, ALLBITS, ERROR, FRAMEBITS, HEIGHT, PROPERTIES, SOMEBITS, WIDTH
Modifier and Type Field Description
static final int ABORT
This flag in the infoflags argument to imageUpdate indicates that an image which was being tracked asynchronously was aborted before production was complete.
static final int ALLBITS
This flag in the infoflags argument to imageUpdate indicates that a static image which was previously drawn is now complete and can be drawn again in its final form.
static final int ERROR
This flag in the infoflags argument to imageUpdate indicates that an image which was being tracked asynchronously has encountered an error.
static final int FRAMEBITS
This flag in the infoflags argument to imageUpdate indicates that another complete frame of a multi-frame image which was previously drawn is now available to be drawn again.
static final int HEIGHT
This flag in the infoflags argument to imageUpdate indicates that the height of the base image is now available and can be taken from the height argument to the imageUpdate callback method.
static final int PROPERTIES
This flag in the infoflags argument to imageUpdate indicates that the properties of the image are now available.
static final int SOMEBITS
This flag in the infoflags argument to imageUpdate indicates that more pixels needed for drawing a scaled variation of the image are available.
static final int WIDTH
This flag in the infoflags argument to imageUpdate indicates that the width of the base image is now available and can be taken from the width argument to the imageUpdate callback method.

Constructor Summary

Constructor Description
MetalComboPopup(JComboBox<Object> cBox)
Deprecated.
Constructs a new instance of MetalComboPopup.

Method Summary

Modifier and Type Method Description
void delegateFocus(MouseEvent e)
Deprecated.
This is a utility method that helps event handlers figure out where to send the focus when the popup is brought up.

Methods declared in class BasicComboPopup

autoScrollDown, autoScrollUp, computePopupBounds, configureList, configurePopup, configureScroller, convertMouseEvent, createItemListener, createKeyListener, createList, createListDataListener, createListMouseListener, createListMouseMotionListener, createListSelectionListener, createMouseListener, createMouseMotionListener, createPropertyChangeListener, createScroller, getAccessibleContext, getKeyListener, getList, getMouseListener, getMouseMotionListener, getPopupHeightForRowCount, hide, installComboBoxListeners, installComboBoxModelListeners, installKeyboardActions, installListListeners, isFocusTraversable, show, startAutoScrolling, stopAutoScrolling, togglePopup, uninstallComboBoxModelListeners, uninstallingUI, uninstallKeyboardActions, updateListBoxSelectionForEvent
Modifier and Type Method Description
protected void autoScrollDown()
This protected method is implementation specific and should be private. do not call or override.
protected void autoScrollUp()
This protected method is implementation specific and should be private. do not call or override.
protected Rectangle computePopupBounds(int px, int py, int pw, int ph)
Calculate the placement and size of the popup portion of the combo box based on the combo box location and the enclosing screen bounds.
protected void configureList()
Configures the list which is used to hold the combo box items in the popup.
protected void configurePopup()
Configures the popup portion of the combo box.
protected void configureScroller()
Configures the scrollable portion which holds the list within the combo box popup.
protected MouseEvent convertMouseEvent(MouseEvent e)
Converts mouse event.
protected ItemListener createItemListener()
Creates an ItemListener which will be added to the combo box.
protected KeyListener createKeyListener()
Creates the key listener that will be added to the combo box.
protected JList<Object> createList()
Creates the JList used in the popup to display the items in the combo box model.
protected ListDataListener createListDataListener()
Creates a list data listener which will be added to the ComboBoxModel.
protected MouseListener createListMouseListener()
Creates a mouse listener that watches for mouse events in the popup's list.
protected MouseMotionListener createListMouseMotionListener()
Creates a mouse motion listener that watches for mouse motion events in the popup's list.
protected ListSelectionListener createListSelectionListener()
Creates a list selection listener that watches for selection changes in the popup's list.
protected MouseListener createMouseListener()
Creates a listener that will watch for mouse-press and release events on the combo box.
protected MouseMotionListener createMouseMotionListener()
Creates the mouse motion listener which will be added to the combo box.
protected PropertyChangeListener createPropertyChangeListener()
Creates a PropertyChangeListener which will be added to the combo box.
protected JScrollPane createScroller()
Creates the scroll pane which houses the scrollable list.
AccessibleContext getAccessibleContext()
Gets the AccessibleContext associated with this BasicComboPopup.
KeyListener getKeyListener()
Implementation of ComboPopup.getKeyListener().
JList<Object> getList()
Implementation of ComboPopup.getList().
MouseListener getMouseListener()
Implementation of ComboPopup.getMouseListener().
MouseMotionListener getMouseMotionListener()
Implementation of ComboPopup.getMouseMotionListener().
protected int getPopupHeightForRowCount(int maxRowCount)
Retrieves the height of the popup based on the current ListCellRenderer and the maximum row count.
void hide()
Implementation of ComboPopup.hide().
protected void installComboBoxListeners()
This method adds the necessary listeners to the JComboBox.
protected void installComboBoxModelListeners(ComboBoxModel<?> model)
Installs the listeners on the combo box model.
protected void installKeyboardActions()
Registers keyboard actions.
protected void installListListeners()
Adds the listeners to the list control.
boolean isFocusTraversable()
Overridden to unconditionally return false.
void show()
Implementation of ComboPopup.show().
protected void startAutoScrolling(int direction)
This protected method is implementation specific and should be private. do not call or override.
protected void stopAutoScrolling()
This protected method is implementation specific and should be private. do not call or override.
protected void togglePopup()
Makes the popup visible if it is hidden and makes it hidden if it is visible.
protected void uninstallComboBoxModelListeners(ComboBoxModel<?> model)
Removes the listeners from the combo box model
void uninstallingUI()
Called when the UI is uninstalling.
protected void uninstallKeyboardActions()
Unregisters keyboard actions.
protected void updateListBoxSelectionForEvent(MouseEvent anEvent, boolean shouldScroll)
A utility method used by the event listeners.

Methods declared in class JPopupMenu

add, add, add, addMenuKeyListener, addPopupMenuListener, addSeparator, createActionChangeListener, createActionComponent, firePopupMenuCanceled, firePopupMenuWillBecomeInvisible, firePopupMenuWillBecomeVisible, getComponent, getComponentAtIndex, getComponentIndex, getDefaultLightWeightPopupEnabled, getInvoker, getLabel, getMargin, getMenuKeyListeners, getPopupMenuListeners, getSelectionModel, getSubElements, getUI, getUIClassID, insert, insert, isBorderPainted, isLightWeightPopupEnabled, isPopupTrigger, isVisible, menuSelectionChanged, pack, paintBorder, paramString, processKeyEvent, processKeyEvent, processMouseEvent, remove, removeMenuKeyListener, removePopupMenuListener, setBorderPainted, setDefaultLightWeightPopupEnabled, setInvoker, setLabel, setLightWeightPopupEnabled, setLocation, setPopupSize, setPopupSize, setSelected, setSelectionModel, setUI, setVisible, show, updateUI
Modifier and Type Method Description
JMenuItem add(String s)
Creates a new menu item with the specified text and appends it to the end of this menu.
JMenuItem add(Action a)
Appends a new menu item to the end of the menu which dispatches the specified Action object.
JMenuItem add(JMenuItem menuItem)
Appends the specified menu item to the end of this menu.
void addMenuKeyListener(MenuKeyListener l)
Adds a MenuKeyListener to the popup menu.
void addPopupMenuListener(PopupMenuListener l)
Adds a PopupMenu listener.
void addSeparator()
Appends a new separator at the end of the menu.
protected PropertyChangeListener createActionChangeListener(JMenuItem b)
Returns a properly configured PropertyChangeListener which updates the control as changes to the Action occur.
protected JMenuItem createActionComponent(Action a)
Factory method which creates the JMenuItem for Actions added to the JPopupMenu.
protected void firePopupMenuCanceled()
Notifies PopupMenuListeners that this popup menu is cancelled.
protected void firePopupMenuWillBecomeInvisible()
Notifies PopupMenuListeners that this popup menu will become invisible.
protected void firePopupMenuWillBecomeVisible()
Notifies PopupMenuListeners that this popup menu will become visible.
Component getComponent()
Returns this JPopupMenu component.
Component getComponentAtIndex(int i)
Deprecated.
replaced by Container.getComponent(int)
int getComponentIndex(Component c)
Returns the index of the specified component.
static boolean getDefaultLightWeightPopupEnabled()
Gets the defaultLightWeightPopupEnabled property, which by default is true.
Component getInvoker()
Returns the component which is the 'invoker' of this popup menu.
String getLabel()
Returns the popup menu's label
Insets getMargin()
Returns the margin, in pixels, between the popup menu's border and its containers.
MenuKeyListener[] getMenuKeyListeners()
Returns an array of all the MenuKeyListeners added to this JPopupMenu with addMenuKeyListener().
PopupMenuListener[] getPopupMenuListeners()
Returns an array of all the PopupMenuListeners added to this JMenuItem with addPopupMenuListener().
SingleSelectionModel getSelectionModel()
Returns the model object that handles single selections.
MenuElement[] getSubElements()
Returns an array of MenuElements containing the submenu for this menu component.
PopupMenuUI getUI()
Returns the look and feel (L&F) object that renders this component.
String getUIClassID()
Returns the name of the L&F class that renders this component.
void insert(Component component, int index)
Inserts the specified component into the menu at a given position.
void insert(Action a, int index)
Inserts a menu item for the specified Action object at a given position.
boolean isBorderPainted()
Checks whether the border should be painted.
boolean isLightWeightPopupEnabled()
Gets the lightWeightPopupEnabled property.
boolean isPopupTrigger(MouseEvent e)
Returns true if the MouseEvent is considered a popup trigger by the JPopupMenu's currently installed UI.
boolean isVisible()
Returns true if the popup menu is visible (currently being displayed).
void menuSelectionChanged(boolean isIncluded)
Messaged when the menubar selection changes to activate or deactivate this menu.
void pack()
Lays out the container so that it uses the minimum space needed to display its contents.
protected void paintBorder(Graphics g)
Paints the popup menu's border if the borderPainted property is true.
protected String paramString()
Returns a string representation of this JPopupMenu.
protected void processKeyEvent(KeyEvent evt)
Processes key stroke events such as mnemonics and accelerators.
void processKeyEvent(KeyEvent e, MenuElement[] path, MenuSelectionManager manager)
Processes a key event forwarded from the MenuSelectionManager and changes the menu selection, if necessary, by using MenuSelectionManager's API.
void processMouseEvent(MouseEvent event, MenuElement[] path, MenuSelectionManager manager)
This method is required to conform to the MenuElement interface, but it not implemented.
void remove(int pos)
Removes the component at the specified index from this popup menu.
void removeMenuKeyListener(MenuKeyListener l)
Removes a MenuKeyListener from the popup menu.
void removePopupMenuListener(PopupMenuListener l)
Removes a PopupMenu listener.
void setBorderPainted(boolean b)
Sets whether the border should be painted.
static void setDefaultLightWeightPopupEnabled(boolean aFlag)
Sets the default value of the lightWeightPopupEnabled property.
void setInvoker(Component invoker)
Sets the invoker of this popup menu -- the component in which the popup menu is to be displayed.
void setLabel(String label)
Sets the popup menu's label.
void setLightWeightPopupEnabled(boolean aFlag)
Sets the value of the lightWeightPopupEnabled property, which by default is true.
void setLocation(int x, int y)
Sets the location of the upper left corner of the popup menu using x, y coordinates.
void setPopupSize(int width, int height)
Sets the size of the Popup window to the specified width and height.
void setPopupSize(Dimension d)
Sets the size of the Popup window using a Dimension object.
void setSelected(Component sel)
Sets the currently selected component, This will result in a change to the selection model.
void setSelectionModel(SingleSelectionModel model)
Sets the model object to handle single selections.
void setUI(PopupMenuUI ui)
Sets the L&F object that renders this component.
void setVisible(boolean b)
Sets the visibility of the popup menu.
void show(Component invoker, int x, int y)
Displays the popup menu at the position x,y in the coordinate space of the component invoker.
void updateUI()
Resets the UI property to a value from the current look and feel.

Methods declared in class JComponent

addAncestorListener, addNotify, addVetoableChangeListener, computeVisibleRect, contains, createToolTip, disable, enable, firePropertyChange, firePropertyChange, fireVetoableChange, getActionForKeyStroke, getActionMap, getAlignmentX, getAlignmentY, getAncestorListeners, getAutoscrolls, getBaseline, getBaselineResizeBehavior, getBorder, getBounds, getClientProperty, getComponentGraphics, getComponentPopupMenu, getConditionForKeyStroke, getDebugGraphicsOptions, getDefaultLocale, getFontMetrics, getGraphics, getHeight, getInheritsPopupMenu, getInputMap, getInputMap, getInputVerifier, getInsets, getInsets, getListeners, getLocation, getMaximumSize, getMinimumSize, getNextFocusableComponent, getPopupLocation, getPreferredSize, getRegisteredKeyStrokes, getRootPane, getSize, getToolTipLocation, getToolTipText, getToolTipText, getTopLevelAncestor, getTransferHandler, getVerifyInputWhenFocusTarget, getVetoableChangeListeners, getVisibleRect, getWidth, getX, getY, grabFocus, isDoubleBuffered, isLightweightComponent, isManagingFocus, isOpaque, isOptimizedDrawingEnabled, isPaintingForPrint, isPaintingOrigin, isPaintingTile, isRequestFocusEnabled, isValidateRoot, paint, paintChildren, paintComponent, paintImmediately, paintImmediately, print, printAll, printBorder, printChildren, printComponent, processComponentKeyEvent, processKeyBinding, processMouseEvent, processMouseMotionEvent, putClientProperty, registerKeyboardAction, registerKeyboardAction, removeAncestorListener, removeNotify, removeVetoableChangeListener, repaint, repaint, requestDefaultFocus, requestFocus, requestFocus, requestFocusInWindow, requestFocusInWindow, resetKeyboardActions, reshape, revalidate, scrollRectToVisible, setActionMap, setAlignmentX, setAlignmentY, setAutoscrolls, setBackground, setBorder, setComponentPopupMenu, setDebugGraphicsOptions, setDefaultLocale, setDoubleBuffered, setEnabled, setFocusTraversalKeys, setFont, setForeground, setInheritsPopupMenu, setInputMap, setInputVerifier, setMaximumSize, setMinimumSize, setNextFocusableComponent, setOpaque, setPreferredSize, setRequestFocusEnabled, setToolTipText, setTransferHandler, setUI, setVerifyInputWhenFocusTarget, unregisterKeyboardAction, update
Modifier and Type Method Description
void addAncestorListener(AncestorListener listener)
Registers listener so that it will receive AncestorEvents when it or any of its ancestors move or are made visible or invisible.
void addNotify()
Notifies this component that it now has a parent component.
void addVetoableChangeListener(VetoableChangeListener listener)
Adds a VetoableChangeListener to the listener list.
void computeVisibleRect(Rectangle visibleRect)
Returns the Component's "visible rect rectangle" - the intersection of the visible rectangles for this component and all of its ancestors.
boolean contains(int x, int y)
Gives the UI delegate an opportunity to define the precise shape of this component for the sake of mouse processing.
JToolTip createToolTip()
Returns the instance of JToolTip that should be used to display the tooltip.
void disable()
Deprecated.
As of JDK version 1.1, replaced by java.awt.Component.setEnabled(boolean).
void enable()
Deprecated.
As of JDK version 1.1, replaced by java.awt.Component.setEnabled(boolean).
void firePropertyChange(String propertyName, boolean oldValue, boolean newValue)
Support for reporting bound property changes for boolean properties.
void firePropertyChange(String propertyName, int oldValue, int newValue)
Support for reporting bound property changes for integer properties.
protected void fireVetoableChange(String propertyName, Object oldValue, Object newValue)
Supports reporting constrained property changes.
ActionListener getActionForKeyStroke(KeyStroke aKeyStroke)
Returns the object that will perform the action registered for a given keystroke.
final ActionMap getActionMap()
Returns the ActionMap used to determine what Action to fire for particular KeyStroke binding.
float getAlignmentX()
Overrides Container.getAlignmentX to return the horizontal alignment.
float getAlignmentY()
Overrides Container.getAlignmentY to return the vertical alignment.
AncestorListener[] getAncestorListeners()
Returns an array of all the ancestor listeners registered on this component.
boolean getAutoscrolls()
Gets the autoscrolls property.
int getBaseline(int width, int height)
Returns the baseline.
Component.BaselineResizeBehavior getBaselineResizeBehavior()
Returns an enum indicating how the baseline of the component changes as the size changes.
Border getBorder()
Returns the border of this component or null if no border is currently set.
Rectangle getBounds(Rectangle rv)
Stores the bounds of this component into "return value" rv and returns rv.
final Object getClientProperty(Object key)
Returns the value of the property with the specified key.
protected Graphics getComponentGraphics(Graphics g)
Returns the graphics object used to paint this component.
JPopupMenu getComponentPopupMenu()
Returns JPopupMenu that assigned for this component.
int getConditionForKeyStroke(KeyStroke aKeyStroke)
Returns the condition that determines whether a registered action occurs in response to the specified keystroke.
int getDebugGraphicsOptions()
Returns the state of graphics debugging.
static Locale getDefaultLocale()
Returns the default locale used to initialize each JComponent's locale property upon creation.
FontMetrics getFontMetrics(Font font)
Gets the FontMetrics for the specified Font.
Graphics getGraphics()
Returns this component's graphics context, which lets you draw on a component.
int getHeight()
Returns the current height of this component.
boolean getInheritsPopupMenu()
Returns true if the JPopupMenu should be inherited from the parent.
final InputMap getInputMap()
Returns the InputMap that is used when the component has focus.
final InputMap getInputMap(int condition)
Returns the InputMap that is used during condition.
InputVerifier getInputVerifier()
Returns the input verifier for this component.
Insets getInsets()
If a border has been set on this component, returns the border's insets; otherwise calls super.getInsets.
Insets getInsets(Insets insets)
Returns an Insets object containing this component's inset values.
<T extends EventListener>
T[]
getListeners(Class<T> listenerType)
Returns an array of all the objects currently registered as FooListeners upon this JComponent.
Point getLocation(Point rv)
Stores the x,y origin of this component into "return value" rv and returns rv.
Dimension getMaximumSize()
If the maximum size has been set to a non-null value just returns it.
Dimension getMinimumSize()
If the minimum size has been set to a non-null value just returns it.
Component getNextFocusableComponent()
Deprecated.
As of 1.4, replaced by FocusTraversalPolicy.
Point getPopupLocation(MouseEvent event)
Returns the preferred location to display the popup menu in this component's coordinate system.
Dimension getPreferredSize()
If the preferredSize has been set to a non-null value just returns it.
KeyStroke[] getRegisteredKeyStrokes()
Returns the KeyStrokes that will initiate registered actions.
JRootPane getRootPane()
Returns the JRootPane ancestor for this component.
Dimension getSize(Dimension rv)
Stores the width/height of this component into "return value" rv and returns rv.
Point getToolTipLocation(MouseEvent event)
Returns the tooltip location in this component's coordinate system.
String getToolTipText()
Returns the tooltip string that has been set with setToolTipText.
String getToolTipText(MouseEvent event)
Returns the string to be used as the tooltip for event.
Container getTopLevelAncestor()
Returns the top-level ancestor of this component (the containing Window) or null if this component has not been added to any container.
TransferHandler getTransferHandler()
Gets the transferHandler property.
boolean getVerifyInputWhenFocusTarget()
Returns the value that indicates whether the input verifier for the current focus owner will be called before this component requests focus.
VetoableChangeListener[] getVetoableChangeListeners()
Returns an array of all the vetoable change listeners registered on this component.
Rectangle getVisibleRect()
Returns the Component's "visible rectangle" - the intersection of this component's visible rectangle, new Rectangle(0, 0, getWidth(), getHeight()), and all of its ancestors' visible rectangles.
int getWidth()
Returns the current width of this component.
int getX()
Returns the current x coordinate of the component's origin.
int getY()
Returns the current y coordinate of the component's origin.
void grabFocus()
Requests that this Component get the input focus, and that this Component's top-level ancestor become the focused Window.
boolean isDoubleBuffered()
Returns whether this component should use a buffer to paint.
static boolean isLightweightComponent(Component c)
Returns true if this component is lightweight, that is, if it doesn't have a native window system peer.
boolean isManagingFocus()
Deprecated.
As of 1.4, replaced by Component.setFocusTraversalKeys(int, Set) and Container.setFocusCycleRoot(boolean).
boolean isOpaque()
Returns true if this component is completely opaque.
boolean isOptimizedDrawingEnabled()
Returns true if this component tiles its children -- that is, if it can guarantee that the children will not overlap.
final boolean isPaintingForPrint()
Returns true if the current painting operation on this component is part of a print operation.
protected boolean isPaintingOrigin()
Returns true if a paint triggered on a child component should cause painting to originate from this Component, or one of its ancestors.
boolean isPaintingTile()
Returns true if the component is currently painting a tile.
boolean isRequestFocusEnabled()
Returns true if this JComponent should get focus; otherwise returns false.
boolean isValidateRoot()
If this method returns true, revalidate calls by descendants of this component will cause the entire tree beginning with this root to be validated.
void paint(Graphics g)
Invoked by Swing to draw components.
protected void paintChildren(Graphics g)
Paints this component's children.
protected void paintComponent(Graphics g)
Calls the UI delegate's paint method, if the UI delegate is non-null.
void paintImmediately(int x, int y, int w, int h)
Paints the specified region in this component and all of its descendants that overlap the region, immediately.
void paintImmediately(Rectangle r)
Paints the specified region now.
void print(Graphics g)
Invoke this method to print the component to the specified Graphics.
void printAll(Graphics g)
Invoke this method to print the component.
protected void printBorder(Graphics g)
Prints the component's border.
protected void printChildren(Graphics g)
Prints this component's children.
protected void printComponent(Graphics g)
This is invoked during a printing operation.
protected void processComponentKeyEvent(KeyEvent e)
Processes any key events that the component itself recognizes.
protected boolean processKeyBinding(KeyStroke ks, KeyEvent e, int condition, boolean pressed)
Invoked to process the key bindings for ks as the result of the KeyEvent e.
protected void processMouseEvent(MouseEvent e)
Processes mouse events occurring on this component by dispatching them to any registered MouseListener objects, refer to Component.processMouseEvent(MouseEvent) for a complete description of this method.
protected void processMouseMotionEvent(MouseEvent e)
Processes mouse motion events, such as MouseEvent.MOUSE_DRAGGED.
final void putClientProperty(Object key, Object value)
Adds an arbitrary key/value "client property" to this component.
void registerKeyboardAction(ActionListener anAction, String aCommand, KeyStroke aKeyStroke, int aCondition)
This method is now obsolete, please use a combination of getActionMap() and getInputMap() for similar behavior.
void registerKeyboardAction(ActionListener anAction, KeyStroke aKeyStroke, int aCondition)
This method is now obsolete, please use a combination of getActionMap() and getInputMap() for similar behavior.
void removeAncestorListener(AncestorListener listener)
Unregisters listener so that it will no longer receive AncestorEvents.
void removeNotify()
Notifies this component that it no longer has a parent component.
void removeVetoableChangeListener(VetoableChangeListener listener)
Removes a VetoableChangeListener from the listener list.
void repaint(long tm, int x, int y, int width, int height)
Adds the specified region to the dirty region list if the component is showing.
void repaint(Rectangle r)
Adds the specified region to the dirty region list if the component is showing.
boolean requestDefaultFocus()
Deprecated.
As of 1.4, replaced by FocusTraversalPolicy.getDefaultComponent(Container).requestFocus()
void requestFocus()
Requests that this Component gets the input focus.
boolean requestFocus(boolean temporary)
Requests that this Component gets the input focus.
boolean requestFocusInWindow()
Requests that this Component gets the input focus.
protected boolean requestFocusInWindow(boolean temporary)
Requests that this Component gets the input focus.
void resetKeyboardActions()
Unregisters all the bindings in the first tier InputMaps and ActionMap.
void reshape(int x, int y, int w, int h)
Deprecated.
As of JDK 5, replaced by Component.setBounds(int, int, int, int).
void revalidate()
Supports deferred automatic layout.
void scrollRectToVisible(Rectangle aRect)
Forwards the scrollRectToVisible() message to the JComponent's parent.
final void setActionMap(ActionMap am)
Sets the ActionMap to am.
void setAlignmentX(float alignmentX)
Sets the horizontal alignment.
void setAlignmentY(float alignmentY)
Sets the vertical alignment.
void setAutoscrolls(boolean autoscrolls)
Sets the autoscrolls property.
void setBackground(Color bg)
Sets the background color of this component.
void setBorder(Border border)
Sets the border of this component.
void setComponentPopupMenu(JPopupMenu popup)
Sets the JPopupMenu for this JComponent.
void setDebugGraphicsOptions(int debugOptions)
Enables or disables diagnostic information about every graphics operation performed within the component or one of its children.
static void setDefaultLocale(Locale l)
Sets the default locale used to initialize each JComponent's locale property upon creation.
void setDoubleBuffered(boolean aFlag)
Sets whether this component should use a buffer to paint.
void setEnabled(boolean enabled)
Sets whether or not this component is enabled.
void setFocusTraversalKeys(int id, Set<? extends AWTKeyStroke> keystrokes)
Sets the focus traversal keys for a given traversal operation for this Component.
void setFont(Font font)
Sets the font for this component.
void setForeground(Color fg)
Sets the foreground color of this component.
void setInheritsPopupMenu(boolean value)
Sets whether or not getComponentPopupMenu should delegate to the parent if this component does not have a JPopupMenu assigned to it.
final void setInputMap(int condition, InputMap map)
Sets the InputMap to use under the condition condition to map.
void setInputVerifier(InputVerifier inputVerifier)
Sets the input verifier for this component.
void setMaximumSize(Dimension maximumSize)
Sets the maximum size of this component to a constant value.
void setMinimumSize(Dimension minimumSize)
Sets the minimum size of this component to a constant value.
void setNextFocusableComponent(Component aComponent)
Deprecated.
As of 1.4, replaced by FocusTraversalPolicy
void setOpaque(boolean isOpaque)
If true the component paints every pixel within its bounds.
void setPreferredSize(Dimension preferredSize)
Sets the preferred size of this component.
void setRequestFocusEnabled(boolean requestFocusEnabled)
Provides a hint as to whether or not this JComponent should get focus.
void setToolTipText(String text)
Registers the text to display in a tool tip.
void setTransferHandler(TransferHandler newHandler)
Sets the TransferHandler, which provides support for transfer of data into and out of this component via cut/copy/paste and drag and drop.
protected void setUI(ComponentUI newUI)
Sets the look and feel delegate for this component.
void setVerifyInputWhenFocusTarget(boolean verifyInputWhenFocusTarget)
Sets the value to indicate whether input verifier for the current focus owner will be called before this component requests focus.
void unregisterKeyboardAction(KeyStroke aKeyStroke)
This method is now obsolete.
void update(Graphics g)
Calls paint.

Methods declared in class Container

add, add, add, add, add, addContainerListener, addImpl, addPropertyChangeListener, addPropertyChangeListener, applyComponentOrientation, areFocusTraversalKeysSet, countComponents, deliverEvent, doLayout, findComponentAt, findComponentAt, getComponent, getComponentAt, getComponentAt, getComponentCount, getComponents, getComponentZOrder, getContainerListeners, getFocusTraversalKeys, getFocusTraversalPolicy, getLayout, getMousePosition, insets, invalidate, isAncestorOf, isFocusCycleRoot, isFocusCycleRoot, isFocusTraversalPolicyProvider, isFocusTraversalPolicySet, layout, list, list, locate, minimumSize, paintComponents, preferredSize, printComponents, processContainerEvent, processEvent, remove, removeAll, removeContainerListener, setComponentZOrder, setFocusCycleRoot, setFocusTraversalPolicy, setFocusTraversalPolicyProvider, setLayout, transferFocusDownCycle, validate, validateTree
Modifier and Type Method Description
Component add(Component comp)
Appends the specified component to the end of this container.
Component add(Component comp, int index)
Adds the specified component to this container at the given position.
void add(Component comp, Object constraints)
Adds the specified component to the end of this container.
void add(Component comp, Object constraints, int index)
Adds the specified component to this container with the specified constraints at the specified index.
Component add(String name, Component comp)
Adds the specified component to this container.
void addContainerListener(ContainerListener l)
Adds the specified container listener to receive container events from this container.
protected void addImpl(Component comp, Object constraints, int index)
Adds the specified component to this container at the specified index.
void addPropertyChangeListener(PropertyChangeListener listener)
Adds a PropertyChangeListener to the listener list.
void addPropertyChangeListener(String propertyName, PropertyChangeListener listener)
Adds a PropertyChangeListener to the listener list for a specific property.
void applyComponentOrientation(ComponentOrientation o)
Sets the ComponentOrientation property of this container and all components contained within it.
boolean areFocusTraversalKeysSet(int id)
Returns whether the Set of focus traversal keys for the given focus traversal operation has been explicitly defined for this Container.
int countComponents()
Deprecated.
As of JDK version 1.1, replaced by getComponentCount().
void deliverEvent(Event e)
Deprecated.
As of JDK version 1.1, replaced by dispatchEvent(AWTEvent e)
void doLayout()
Causes this container to lay out its components.
Component findComponentAt(int x, int y)
Locates the visible child component that contains the specified position.
Component findComponentAt(Point p)
Locates the visible child component that contains the specified point.
Component getComponent(int n)
Gets the nth component in this container.
Component getComponentAt(int x, int y)
Locates the component that contains the x,y position.
Component getComponentAt(Point p)
Gets the component that contains the specified point.
int getComponentCount()
Gets the number of components in this panel.
Component[] getComponents()
Gets all the components in this container.
int getComponentZOrder(Component comp)
Returns the z-order index of the component inside the container.
ContainerListener[] getContainerListeners()
Returns an array of all the container listeners registered on this container.
Set<AWTKeyStroke> getFocusTraversalKeys(int id)
Returns the Set of focus traversal keys for a given traversal operation for this Container.
FocusTraversalPolicy getFocusTraversalPolicy()
Returns the focus traversal policy that will manage keyboard traversal of this Container's children, or null if this Container is not a focus cycle root.
LayoutManager getLayout()
Gets the layout manager for this container.
Point getMousePosition(boolean allowChildren)
Returns the position of the mouse pointer in this Container's coordinate space if the Container is under the mouse pointer, otherwise returns null.
Insets insets()
Deprecated.
As of JDK version 1.1, replaced by getInsets().
void invalidate()
Invalidates the container.
boolean isAncestorOf(Component c)
Checks if the component is contained in the component hierarchy of this container.
boolean isFocusCycleRoot()
Returns whether this Container is the root of a focus traversal cycle.
boolean isFocusCycleRoot(Container container)
Returns whether the specified Container is the focus cycle root of this Container's focus traversal cycle.
final boolean isFocusTraversalPolicyProvider()
Returns whether this container provides focus traversal policy.
boolean isFocusTraversalPolicySet()
Returns whether the focus traversal policy has been explicitly set for this Container.
void layout()
Deprecated.
As of JDK version 1.1, replaced by doLayout().
void list(PrintStream out, int indent)
Prints a listing of this container to the specified output stream.
void list(PrintWriter out, int indent)
Prints out a list, starting at the specified indentation, to the specified print writer.
Component locate(int x, int y)
Deprecated.
As of JDK version 1.1, replaced by getComponentAt(int, int).
Dimension minimumSize()
Deprecated.
As of JDK version 1.1, replaced by getMinimumSize().
void paintComponents(Graphics g)
Paints each of the components in this container.
Dimension preferredSize()
Deprecated.
As of JDK version 1.1, replaced by getPreferredSize().
void printComponents(Graphics g)
Prints each of the components in this container.
protected void processContainerEvent(ContainerEvent e)
Processes container events occurring on this container by dispatching them to any registered ContainerListener objects.
protected void processEvent(AWTEvent e)
Processes events on this container.
void remove(Component comp)
Removes the specified component from this container.
void removeAll()
Removes all the components from this container.
void removeContainerListener(ContainerListener l)
Removes the specified container listener so it no longer receives container events from this container.
void setComponentZOrder(Component comp, int index)
Moves the specified component to the specified z-order index in the container.
void setFocusCycleRoot(boolean focusCycleRoot)
Sets whether this Container is the root of a focus traversal cycle.
void setFocusTraversalPolicy(FocusTraversalPolicy policy)
Sets the focus traversal policy that will manage keyboard traversal of this Container's children, if this Container is a focus cycle root.
final void setFocusTraversalPolicyProvider(boolean provider)
Sets whether this container will be used to provide focus traversal policy.
void setLayout(LayoutManager mgr)
Sets the layout manager for this container.
void transferFocusDownCycle()
Transfers the focus down one focus traversal cycle.
void validate()
Validates this container and all of its subcomponents.
protected void validateTree()
Recursively descends the container tree and recomputes the layout for any subtrees marked as needing it (those marked as invalid).

Methods declared in class Component

action, add, addComponentListener, addFocusListener, addHierarchyBoundsListener, addHierarchyListener, addInputMethodListener, addKeyListener, addMouseListener, addMouseMotionListener, addMouseWheelListener, bounds, checkImage, checkImage, coalesceEvents, contains, createImage, createImage, createVolatileImage, createVolatileImage, disableEvents, dispatchEvent, enable, enableEvents, enableInputMethods, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, getBackground, getBounds, getColorModel, getComponentListeners, getComponentOrientation, getCursor, getDropTarget, getFocusCycleRootAncestor, getFocusListeners, getFocusTraversalKeysEnabled, getFont, getForeground, getGraphicsConfiguration, getHierarchyBoundsListeners, getHierarchyListeners, getIgnoreRepaint, getInputContext, getInputMethodListeners, getInputMethodRequests, getKeyListeners, getLocale, getLocation, getLocationOnScreen, getMouseListeners, getMouseMotionListeners, getMousePosition, getMouseWheelListeners, getName, getParent, getPropertyChangeListeners, getPropertyChangeListeners, getSize, getToolkit, getTreeLock, gotFocus, handleEvent, hasFocus, imageUpdate, inside, isBackgroundSet, isCursorSet, isDisplayable, isEnabled, isFocusable, isFocusOwner, isFontSet, isForegroundSet, isLightweight, isMaximumSizeSet, isMinimumSizeSet, isPreferredSizeSet, isShowing, isValid, keyDown, keyUp, list, list, list, location, lostFocus, mouseDown, mouseDrag, mouseEnter, mouseExit, mouseMove, mouseUp, move, nextFocus, paintAll, postEvent, prepareImage, prepareImage, processComponentEvent, processFocusEvent, processHierarchyBoundsEvent, processHierarchyEvent, processInputMethodEvent, processMouseWheelEvent, remove, removeComponentListener, removeFocusListener, removeHierarchyBoundsListener, removeHierarchyListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removeMouseWheelListener, removePropertyChangeListener, removePropertyChangeListener, repaint, repaint, repaint, requestFocus, requestFocus, requestFocusInWindow, resize, resize, setBounds, setBounds, setComponentOrientation, setCursor, setDropTarget, setFocusable, setFocusTraversalKeysEnabled, setIgnoreRepaint, setLocale, setLocation, setMixingCutoutShape, setName, setSize, setSize, show, size, toString, transferFocus, transferFocusBackward, transferFocusUpCycle
Modifier and Type Method Description
boolean action(Event evt, Object what)
Deprecated.
As of JDK version 1.1, should register this component as ActionListener on component which fires action events.
void add(PopupMenu popup)
Adds the specified popup menu to the component.
void addComponentListener(ComponentListener l)
Adds the specified component listener to receive component events from this component.
void addFocusListener(FocusListener l)
Adds the specified focus listener to receive focus events from this component when this component gains input focus.
void addHierarchyBoundsListener(HierarchyBoundsListener l)
Adds the specified hierarchy bounds listener to receive hierarchy bounds events from this component when the hierarchy to which this container belongs changes.
void addHierarchyListener(HierarchyListener l)
Adds the specified hierarchy listener to receive hierarchy changed events from this component when the hierarchy to which this container belongs changes.
void addInputMethodListener(InputMethodListener l)
Adds the specified input method listener to receive input method events from this component.
void addKeyListener(KeyListener l)
Adds the specified key listener to receive key events from this component.
void addMouseListener(MouseListener l)
Adds the specified mouse listener to receive mouse events from this component.
void addMouseMotionListener(MouseMotionListener l)
Adds the specified mouse motion listener to receive mouse motion events from this component.
void addMouseWheelListener(MouseWheelListener l)
Adds the specified mouse wheel listener to receive mouse wheel events from this component.
Rectangle bounds()
Deprecated.
As of JDK version 1.1, replaced by getBounds().
int checkImage(Image image, int width, int height, ImageObserver observer)
Returns the status of the construction of a screen representation of the specified image.
int checkImage(Image image, ImageObserver observer)
Returns the status of the construction of a screen representation of the specified image.
protected AWTEvent coalesceEvents(AWTEvent existingEvent, AWTEvent newEvent)
Potentially coalesce an event being posted with an existing event.
boolean contains(Point p)
Checks whether this component "contains" the specified point, where the point's x and y coordinates are defined to be relative to the coordinate system of this component.
Image createImage(int width, int height)
Creates an off-screen drawable image to be used for double buffering.
Image createImage(ImageProducer producer)
Creates an image from the specified image producer.
VolatileImage createVolatileImage(int width, int height)
Creates a volatile off-screen drawable image to be used for double buffering.
VolatileImage createVolatileImage(int width, int height, ImageCapabilities caps)
Creates a volatile off-screen drawable image, with the given capabilities.
protected final void disableEvents(long eventsToDisable)
Disables the events defined by the specified event mask parameter from being delivered to this component.
final void dispatchEvent(AWTEvent e)
Dispatches an event to this component or one of its sub components.
void enable(boolean b)
Deprecated.
As of JDK version 1.1, replaced by setEnabled(boolean).
protected final void enableEvents(long eventsToEnable)
Enables the events defined by the specified event mask parameter to be delivered to this component.
void enableInputMethods(boolean enable)
Enables or disables input method support for this component.
void firePropertyChange(String propertyName, byte oldValue, byte newValue)
Reports a bound property change.
void firePropertyChange(String propertyName, char oldValue, char newValue)
Reports a bound property change.
void firePropertyChange(String propertyName, double oldValue, double newValue)
Reports a bound property change.
void firePropertyChange(String propertyName, float oldValue, float newValue)
Reports a bound property change.
void firePropertyChange(String propertyName, long oldValue, long newValue)
Reports a bound property change.
void firePropertyChange(String propertyName, short oldValue, short newValue)
Reports a bound property change.
protected void firePropertyChange(String propertyName, Object oldValue, Object newValue)
Support for reporting bound property changes for Object properties.
Color getBackground()
Gets the background color of this component.
Rectangle getBounds()
Gets the bounds of this component in the form of a Rectangle object.
ColorModel getColorModel()
Gets the instance of ColorModel used to display the component on the output device.
ComponentListener[] getComponentListeners()
Returns an array of all the component listeners registered on this component.
ComponentOrientation getComponentOrientation()
Retrieves the language-sensitive orientation that is to be used to order the elements or text within this component.
Cursor getCursor()
Gets the cursor set in the component.
DropTarget getDropTarget()
Gets the DropTarget associated with this Component.
Container getFocusCycleRootAncestor()
Returns the Container which is the focus cycle root of this Component's focus traversal cycle.
FocusListener[] getFocusListeners()
Returns an array of all the focus listeners registered on this component.
boolean getFocusTraversalKeysEnabled()
Returns whether focus traversal keys are enabled for this Component.
Font getFont()
Gets the font of this component.
Color getForeground()
Gets the foreground color of this component.
GraphicsConfiguration getGraphicsConfiguration()
Gets the GraphicsConfiguration associated with this Component.
HierarchyBoundsListener[] getHierarchyBoundsListeners()
Returns an array of all the hierarchy bounds listeners registered on this component.
HierarchyListener[] getHierarchyListeners()
Returns an array of all the hierarchy listeners registered on this component.
boolean getIgnoreRepaint()
Returns whether or not paint messages received from the operating system should be ignored.
InputContext getInputContext()
Gets the input context used by this component for handling the communication with input methods when text is entered in this component.
InputMethodListener[] getInputMethodListeners()
Returns an array of all the input method listeners registered on this component.
InputMethodRequests getInputMethodRequests()
Gets the input method request handler which supports requests from input methods for this component.
KeyListener[] getKeyListeners()
Returns an array of all the key listeners registered on this component.
Locale getLocale()
Gets the locale of this component.
Point getLocation()
Gets the location of this component in the form of a point specifying the component's top-left corner.
Point getLocationOnScreen()
Gets the location of this component in the form of a point specifying the component's top-left corner in the screen's coordinate space.
MouseListener[] getMouseListeners()
Returns an array of all the mouse listeners registered on this component.
MouseMotionListener[] getMouseMotionListeners()
Returns an array of all the mouse motion listeners registered on this component.
Point getMousePosition()
Returns the position of the mouse pointer in this Component's coordinate space if the Component is directly under the mouse pointer, otherwise returns null.
MouseWheelListener[] getMouseWheelListeners()
Returns an array of all the mouse wheel listeners registered on this component.
String getName()
Gets the name of the component.
Container getParent()
Gets the parent of this component.
PropertyChangeListener[] getPropertyChangeListeners()
Returns an array of all the property change listeners registered on this component.
PropertyChangeListener[] getPropertyChangeListeners(String propertyName)
Returns an array of all the listeners which have been associated with the named property.
Dimension getSize()
Returns the size of this component in the form of a Dimension object.
Toolkit getToolkit()
Gets the toolkit of this component.
final Object getTreeLock()
Gets this component's locking object (the object that owns the thread synchronization monitor) for AWT component-tree and layout operations.
boolean gotFocus(Event evt, Object what)
Deprecated.
As of JDK version 1.1, replaced by processFocusEvent(FocusEvent).
boolean handleEvent(Event evt)
Deprecated.
As of JDK version 1.1 replaced by processEvent(AWTEvent).
boolean hasFocus()
Returns true if this Component is the focus owner.
boolean imageUpdate(Image img, int infoflags, int x, int y, int w, int h)
Repaints the component when the image has changed.
boolean inside(int x, int y)
Deprecated.
As of JDK version 1.1, replaced by contains(int, int).
boolean isBackgroundSet()
Returns whether the background color has been explicitly set for this Component.
boolean isCursorSet()
Returns whether the cursor has been explicitly set for this Component.
boolean isDisplayable()
Determines whether this component is displayable.
boolean isEnabled()
Determines whether this component is enabled.
boolean isFocusable()
Returns whether this Component can be focused.
boolean isFocusOwner()
Returns true if this Component is the focus owner.
boolean isFontSet()
Returns whether the font has been explicitly set for this Component.
boolean isForegroundSet()
Returns whether the foreground color has been explicitly set for this Component.
boolean isLightweight()
A lightweight component doesn't have a native toolkit peer.
boolean isMaximumSizeSet()
Returns true if the maximum size has been set to a non-null value otherwise returns false.
boolean isMinimumSizeSet()
Returns whether or not setMinimumSize has been invoked with a non-null value.
boolean isPreferredSizeSet()
Returns true if the preferred size has been set to a non-null value otherwise returns false.
boolean isShowing()
Determines whether this component is showing on screen.
boolean isValid()
Determines whether this component is valid.
boolean keyDown(Event evt, int key)
Deprecated.
As of JDK version 1.1, replaced by processKeyEvent(KeyEvent).
boolean keyUp(Event evt, int key)
Deprecated.
As of JDK version 1.1, replaced by processKeyEvent(KeyEvent).
void list()
Prints a listing of this component to the standard system output stream System.out.
void list(PrintStream out)
Prints a listing of this component to the specified output stream.
void list(PrintWriter out)
Prints a listing to the specified print writer.
Point location()
Deprecated.
As of JDK version 1.1, replaced by getLocation().
boolean lostFocus(Event evt, Object what)
Deprecated.
As of JDK version 1.1, replaced by processFocusEvent(FocusEvent).
boolean mouseDown(Event evt, int x, int y)
Deprecated.
As of JDK version 1.1, replaced by processMouseEvent(MouseEvent).
boolean mouseDrag(Event evt, int x, int y)
Deprecated.
As of JDK version 1.1, replaced by processMouseMotionEvent(MouseEvent).
boolean mouseEnter(Event evt, int x, int y)
Deprecated.
As of JDK version 1.1, replaced by processMouseEvent(MouseEvent).
boolean mouseExit(Event evt, int x, int y)
Deprecated.
As of JDK version 1.1, replaced by processMouseEvent(MouseEvent).
boolean mouseMove(Event evt, int x, int y)
Deprecated.
As of JDK version 1.1, replaced by processMouseMotionEvent(MouseEvent).
boolean mouseUp(Event evt, int x, int y)
Deprecated.
As of JDK version 1.1, replaced by processMouseEvent(MouseEvent).
void move(int x, int y)
Deprecated.
As of JDK version 1.1, replaced by setLocation(int, int).
void nextFocus()
Deprecated.
As of JDK version 1.1, replaced by transferFocus().
void paintAll(Graphics g)
Paints this component and all of its subcomponents.
boolean postEvent(Event e)
Deprecated.
As of JDK version 1.1, replaced by dispatchEvent(AWTEvent).
boolean prepareImage(Image image, int width, int height, ImageObserver observer)
Prepares an image for rendering on this component at the specified width and height.
boolean prepareImage(Image image, ImageObserver observer)
Prepares an image for rendering on this component.
protected void processComponentEvent(ComponentEvent e)
Processes component events occurring on this component by dispatching them to any registered ComponentListener objects.
protected void processFocusEvent(FocusEvent e)
Processes focus events occurring on this component by dispatching them to any registered FocusListener objects.
protected void processHierarchyBoundsEvent(HierarchyEvent e)
Processes hierarchy bounds events occurring on this component by dispatching them to any registered HierarchyBoundsListener objects.
protected void processHierarchyEvent(HierarchyEvent e)
Processes hierarchy events occurring on this component by dispatching them to any registered HierarchyListener objects.
protected void processInputMethodEvent(InputMethodEvent e)
Processes input method events occurring on this component by dispatching them to any registered InputMethodListener objects.
protected void processMouseWheelEvent(MouseWheelEvent e)
Processes mouse wheel events occurring on this component by dispatching them to any registered MouseWheelListener objects.
void remove(MenuComponent popup)
Removes the specified popup menu from the component.
void removeComponentListener(ComponentListener l)
Removes the specified component listener so that it no longer receives component events from this component.
void removeFocusListener(FocusListener l)
Removes the specified focus listener so that it no longer receives focus events from this component.
void removeHierarchyBoundsListener(HierarchyBoundsListener l)
Removes the specified hierarchy bounds listener so that it no longer receives hierarchy bounds events from this component.
void removeHierarchyListener(HierarchyListener l)
Removes the specified hierarchy listener so that it no longer receives hierarchy changed events from this component.
void removeInputMethodListener(InputMethodListener l)
Removes the specified input method listener so that it no longer receives input method events from this component.
void removeKeyListener(KeyListener l)
Removes the specified key listener so that it no longer receives key events from this component.
void removeMouseListener(MouseListener l)
Removes the specified mouse listener so that it no longer receives mouse events from this component.
void removeMouseMotionListener(MouseMotionListener l)
Removes the specified mouse motion listener so that it no longer receives mouse motion events from this component.
void removeMouseWheelListener(MouseWheelListener l)
Removes the specified mouse wheel listener so that it no longer receives mouse wheel events from this component.
void removePropertyChangeListener(PropertyChangeListener listener)
Removes a PropertyChangeListener from the listener list.
void removePropertyChangeListener(String propertyName, PropertyChangeListener listener)
Removes a PropertyChangeListener from the listener list for a specific property.
void repaint()
Repaints this component.
void repaint(int x, int y, int width, int height)
Repaints the specified rectangle of this component.
void repaint(long tm)
Repaints the component.
protected boolean requestFocus(boolean temporary, FocusEvent.Cause cause)
Requests by the reason of cause that this Component get the input focus, and that this Component's top-level ancestor become the focused Window.
void requestFocus(FocusEvent.Cause cause)
Requests by the reason of cause that this Component get the input focus, and that this Component's top-level ancestor become the focused Window.
boolean requestFocusInWindow(FocusEvent.Cause cause)
Requests by the reason of cause that this Component get the input focus, if this Component's top-level ancestor is already the focused Window.
void resize(int width, int height)
Deprecated.
As of JDK version 1.1, replaced by setSize(int, int).
void resize(Dimension d)
Deprecated.
As of JDK version 1.1, replaced by setSize(Dimension).
void setBounds(int x, int y, int width, int height)
Moves and resizes this component.
void setBounds(Rectangle r)
Moves and resizes this component to conform to the new bounding rectangle r.
void setComponentOrientation(ComponentOrientation o)
Sets the language-sensitive orientation that is to be used to order the elements or text within this component.
void setCursor(Cursor cursor)
Sets the cursor image to the specified cursor.
void setDropTarget(DropTarget dt)
Associate a DropTarget with this component.
void setFocusable(boolean focusable)
Sets the focusable state of this Component to the specified value.
void setFocusTraversalKeysEnabled(boolean focusTraversalKeysEnabled)
Sets whether focus traversal keys are enabled for this Component.
void setIgnoreRepaint(boolean ignoreRepaint)
Sets whether or not paint messages received from the operating system should be ignored.
void setLocale(Locale l)
Sets the locale of this component.
void setLocation(Point p)
Moves this component to a new location.
void setMixingCutoutShape(Shape shape)
Sets a 'mixing-cutout' shape for this lightweight component.
void setName(String name)
Sets the name of the component to the specified string.
void setSize(int width, int height)
Resizes this component so that it has width width and height height.
void setSize(Dimension d)
Resizes this component so that it has width d.width and height d.height.
void show(boolean b)
Deprecated.
As of JDK version 1.1, replaced by setVisible(boolean).
Dimension size()
Deprecated.
As of JDK version 1.1, replaced by getSize().
String toString()
Returns a string representation of this component and its values.
void transferFocus()
Transfers the focus to the next component, as though this Component were the focus owner.
void transferFocusBackward()
Transfers the focus to the previous component, as though this Component were the focus owner.
void transferFocusUpCycle()
Transfers the focus up one focus traversal cycle.

Methods declared in class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
Modifier and Type Method Description
protected Object clone()
Creates and returns a copy of this object.
boolean equals(Object obj)
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 this Object.
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 notifyAll()
Wakes up all threads that are waiting on this object's monitor.
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.

Methods declared in interface ComboPopup

isVisible
Modifier and Type Method Description
boolean isVisible()
Returns true if the popup is visible (currently being displayed).

Constructor Details

MetalComboPopup

public MetalComboPopup(JComboBox<Object> cBox)
Deprecated.
Constructs a new instance of MetalComboPopup.
Parameters:
cBox - an instance of JComboBox

Method Details

delegateFocus

public void delegateFocus(MouseEvent e)
Deprecated.
Description copied from class: BasicComboPopup
This is a utility method that helps event handlers figure out where to send the focus when the popup is brought up. The standard implementation delegates the focus to the editor (if the combo box is editable) or to the JComboBox if it is not editable.
Overrides:
delegateFocus in class BasicComboPopup
Parameters:
e - a mouse event

Report a bug or suggest an enhancement
For further API reference and developer documentation see the Java SE Documentation, which contains more detailed, developer-targeted descriptions with conceptual overviews, definitions of terms, workarounds, and working code examples. Other versions.
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Copyright © 1993, 2026, Oracle and/or its affiliates, 500 Oracle Parkway, Redwood Shores, CA 94065 USA.
All rights reserved. Use is subject to license terms and the documentation redistribution policy.

© 1993, 2025, Oracle and/or its affiliates. All rights reserved.
Documentation extracted from Debian's OpenJDK Development Kit package.
Licensed under the GNU General Public License, version 2, with the Classpath Exception.
Various third party code in OpenJDK is licensed under different licenses (see Debian package).
Java and OpenJDK are trademarks or registered trademarks of Oracle and/or its affiliates.

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