- All Implemented Interfaces:
ImageObserver,MenuContainer,Serializable,Accessible,ListCellRenderer<Object>,SwingConstants
- Direct Known Subclasses:
DefaultListCellRenderer.UIResource,MetalFileChooserUI.FileRenderer,MetalFileChooserUI.FilterComboBoxRenderer
Implementation Note:
This class overrides
invalidate,
validate,
revalidate,
repaint,
isOpaque,
and
firePropertyChange
solely to improve performance.
If not overridden, these frequently called methods would execute code paths
that are unnecessary for the default list cell renderer.
If you write your own renderer,
take care to weigh the benefits and
drawbacks of overriding these methods.
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.
- Since:
- 1.2
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Nested Class Summary
Nested ClassesModifier and TypeClassDescriptionstatic classA subclass of DefaultListCellRenderer that implements UIResource.Nested classes/interfaces declared in class javax.swing.JLabel
JLabel.AccessibleJLabelNested classes/interfaces declared in class javax.swing.JComponent
JComponent.AccessibleJComponentNested classes/interfaces declared in class java.awt.Container
Container.AccessibleAWTContainerNested classes/interfaces declared in class java.awt.Component
Component.AccessibleAWTComponent, Component.BaselineResizeBehavior, Component.BltBufferStrategy, Component.FlipBufferStrategy -
Field Summary
FieldsFields declared in class javax.swing.JComponent
listenerList, TOOL_TIP_TEXT_KEY, ui, UNDEFINED_CONDITION, WHEN_ANCESTOR_OF_FOCUSED_COMPONENT, WHEN_FOCUSED, WHEN_IN_FOCUSED_WINDOWFields declared in class java.awt.Component
accessibleContext, BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENTFields declared in interface java.awt.image.ImageObserver
ABORT, ALLBITS, ERROR, FRAMEBITS, HEIGHT, PROPERTIES, SOMEBITS, WIDTHFields declared in interface javax.swing.SwingConstants
BOTTOM, CENTER, EAST, HORIZONTAL, LEADING, LEFT, NEXT, NORTH, NORTH_EAST, NORTH_WEST, PREVIOUS, RIGHT, SOUTH, SOUTH_EAST, SOUTH_WEST, TOP, TRAILING, VERTICAL, WEST -
Constructor Summary
ConstructorsConstructorDescriptionConstructs a default renderer object for an item in a list. -
Method Summary
Modifier and TypeMethodDescriptionvoidfirePropertyChange(String propertyName, boolean oldValue, boolean newValue) Overridden for performance reasons.voidfirePropertyChange(String propertyName, byte oldValue, byte newValue) Overridden for performance reasons.voidfirePropertyChange(String propertyName, char oldValue, char newValue) Overridden for performance reasons.voidfirePropertyChange(String propertyName, double oldValue, double newValue) Overridden for performance reasons.voidfirePropertyChange(String propertyName, float oldValue, float newValue) Overridden for performance reasons.voidfirePropertyChange(String propertyName, int oldValue, int newValue) Overridden for performance reasons.voidfirePropertyChange(String propertyName, long oldValue, long newValue) Overridden for performance reasons.voidfirePropertyChange(String propertyName, short oldValue, short newValue) Overridden for performance reasons.protected voidfirePropertyChange(String propertyName, Object oldValue, Object newValue) Overridden for performance reasons.getListCellRendererComponent(JList<?> list, Object value, int index, boolean isSelected, boolean cellHasFocus) Return a component that has been configured to display the specified value.voidOverridden for performance reasons.booleanisOpaque()Overridden for performance reasons.voidrepaint()Overridden for performance reasons.voidrepaint(long tm, int x, int y, int width, int height) Overridden for performance reasons.voidOverridden for performance reasons.voidOverridden for performance reasons.voidvalidate()Overridden for performance reasons.Methods declared in class javax.swing.JLabel
checkHorizontalKey, checkVerticalKey, getAccessibleContext, getDisabledIcon, getDisplayedMnemonic, getDisplayedMnemonicIndex, getHorizontalAlignment, getHorizontalTextPosition, getIcon, getIconTextGap, getLabelFor, getText, getUI, getUIClassID, getVerticalAlignment, getVerticalTextPosition, imageUpdate, paramString, setDisabledIcon, setDisplayedMnemonic, setDisplayedMnemonic, setDisplayedMnemonicIndex, setHorizontalAlignment, setHorizontalTextPosition, setIcon, setIconTextGap, setLabelFor, setText, setUI, setVerticalAlignment, setVerticalTextPosition, updateUIMethods declared in class javax.swing.JComponent
addAncestorListener, addNotify, addVetoableChangeListener, computeVisibleRect, contains, createToolTip, disable, enable, 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, hide, isDoubleBuffered, isLightweightComponent, isManagingFocus, isOptimizedDrawingEnabled, isPaintingForPrint, isPaintingOrigin, isPaintingTile, isRequestFocusEnabled, isValidateRoot, paint, paintBorder, paintChildren, paintComponent, paintImmediately, paintImmediately, print, printAll, printBorder, printChildren, printComponent, processComponentKeyEvent, processKeyBinding, processKeyEvent, processMouseEvent, processMouseMotionEvent, putClientProperty, registerKeyboardAction, registerKeyboardAction, removeAncestorListener, removeNotify, removeVetoableChangeListener, requestDefaultFocus, requestFocus, requestFocus, requestFocusInWindow, requestFocusInWindow, resetKeyboardActions, reshape, 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, setVisible, unregisterKeyboardAction, updateMethods declared in class java.awt.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, isAncestorOf, isFocusCycleRoot, isFocusCycleRoot, isFocusTraversalPolicyProvider, isFocusTraversalPolicySet, layout, list, list, locate, minimumSize, paintComponents, preferredSize, printComponents, processContainerEvent, processEvent, remove, remove, removeAll, removeContainerListener, setComponentZOrder, setFocusCycleRoot, setFocusTraversalPolicy, setFocusTraversalPolicyProvider, setLayout, transferFocusDownCycle, validateTreeMethods declared in class java.awt.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, 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, inside, isBackgroundSet, isCursorSet, isDisplayable, isEnabled, isFocusable, isFocusOwner, isFocusTraversable, isFontSet, isForegroundSet, isLightweight, isMaximumSizeSet, isMinimumSizeSet, isPreferredSizeSet, isShowing, isValid, isVisible, 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, requestFocus, requestFocus, requestFocusInWindow, resize, resize, setBounds, setBounds, setComponentOrientation, setCursor, setDropTarget, setFocusable, setFocusTraversalKeysEnabled, setIgnoreRepaint, setLocale, setLocation, setLocation, setMixingCutoutShape, setName, setSize, setSize, show, show, size, toString, transferFocus, transferFocusBackward, transferFocusUpCycle
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Field Details
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noFocusBorder
No focus border
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Constructor Details
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DefaultListCellRenderer
public DefaultListCellRenderer()Constructs a default renderer object for an item in a list.
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Method Details
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getListCellRendererComponent
public Component getListCellRendererComponent(JList<?> list, Object value, int index, boolean isSelected, boolean cellHasFocus) Description copied from interface:ListCellRendererReturn a component that has been configured to display the specified value. That component'spaintmethod is then called to "render" the cell. If it is necessary to compute the dimensions of a list because the list cells do not have a fixed size, this method is called to generate a component on whichgetPreferredSizecan be invoked.- Specified by:
getListCellRendererComponentin interfaceListCellRenderer<Object>- Parameters:
list- The JList we're painting.value- The value returned by list.getModel().getElementAt(index).index- The cells index.isSelected- True if the specified cell was selected.cellHasFocus- True if the specified cell has the focus.- Returns:
- A component whose paint() method will render the specified value.
- See Also:
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isOpaque
public boolean isOpaque()Overridden for performance reasons. See the Implementation Note for more information.- Overrides:
isOpaquein classJComponent- Returns:
trueif the background is completely opaque and differs from the JList's background;falseotherwise- Since:
- 1.5
- See Also:
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validate
public void validate()Overridden for performance reasons. See the Implementation Note for more information. -
invalidate
public void invalidate()Overridden for performance reasons. See the Implementation Note for more information.- Overrides:
invalidatein classContainer- Since:
- 1.5
- See Also:
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repaint
public void repaint()Overridden for performance reasons. See the Implementation Note for more information. -
revalidate
public void revalidate()Overridden for performance reasons. See the Implementation Note for more information. -
repaint
public void repaint(long tm, int x, int y, int width, int height) Overridden for performance reasons. See the Implementation Note for more information.- Overrides:
repaintin classJComponent- Parameters:
tm- this parameter is not usedx- the x value of the dirty regiony- the y value of the dirty regionwidth- the width of the dirty regionheight- the height of the dirty region- See Also:
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repaint
Overridden for performance reasons. See the Implementation Note for more information.- Overrides:
repaintin classJComponent- Parameters:
r- aRectanglecontaining the dirty region- See Also:
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firePropertyChange
Overridden for performance reasons. See the Implementation Note for more information.- Overrides:
firePropertyChangein classComponent- Parameters:
propertyName- the property whose value has changedoldValue- the property's previous valuenewValue- the property's new value
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firePropertyChange
Overridden for performance reasons. See the Implementation Note for more information.- Overrides:
firePropertyChangein classComponent- Parameters:
propertyName- the programmatic name of the property that was changedoldValue- the old value of the property (as a byte)newValue- the new value of the property (as a byte)- See Also:
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firePropertyChange
Overridden for performance reasons. See the Implementation Note for more information.- Overrides:
firePropertyChangein classComponent- Parameters:
propertyName- the programmatic name of the property that was changedoldValue- the old value of the property (as a char)newValue- the new value of the property (as a char)- See Also:
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firePropertyChange
Overridden for performance reasons. See the Implementation Note for more information.- Overrides:
firePropertyChangein classComponent- Parameters:
propertyName- the programmatic name of the property that was changedoldValue- the old value of the property (as a short)newValue- the new value of the property (as a short)- See Also:
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firePropertyChange
Overridden for performance reasons. See the Implementation Note for more information.- Overrides:
firePropertyChangein classJComponent- Parameters:
propertyName- the property whose value has changedoldValue- the property's previous valuenewValue- the property's new value
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firePropertyChange
Overridden for performance reasons. See the Implementation Note for more information.- Overrides:
firePropertyChangein classComponent- Parameters:
propertyName- the programmatic name of the property that was changedoldValue- the old value of the property (as a long)newValue- the new value of the property (as a long)- See Also:
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firePropertyChange
Overridden for performance reasons. See the Implementation Note for more information.- Overrides:
firePropertyChangein classComponent- Parameters:
propertyName- the programmatic name of the property that was changedoldValue- the old value of the property (as a float)newValue- the new value of the property (as a float)- See Also:
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firePropertyChange
Overridden for performance reasons. See the Implementation Note for more information.- Overrides:
firePropertyChangein classComponent- Parameters:
propertyName- the programmatic name of the property that was changedoldValue- the old value of the property (as a double)newValue- the new value of the property (as a double)- See Also:
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firePropertyChange
Overridden for performance reasons. See the Implementation Note for more information.- Overrides:
firePropertyChangein classJComponent- Parameters:
propertyName- the property whose value has changedoldValue- the property's previous valuenewValue- the property's new value
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