public class DefaultListCellRenderer extends JLabelimplements ListCellRenderer <Object >, Serializable
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.
| Modifier and Type | Class and Description |
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static class |
DefaultListCellRenderer
A subclass of DefaultListCellRenderer that implements UIResource.
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JLabel.AccessibleJLabel JComponent.AccessibleJComponent Container.AccessibleAWTContainer Component.AccessibleAWTComponent , Component.BaselineResizeBehavior , Component.BltBufferStrategy , Component.FlipBufferStrategy | Modifier and Type | Field and Description |
|---|---|
protected static Border |
noFocusBorder
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listenerList, TOOL_TIP_TEXT_KEY, ui, UNDEFINED_CONDITION, WHEN_ANCESTOR_OF_FOCUSED_COMPONENT, WHEN_FOCUSED, WHEN_IN_FOCUSED_WINDOWaccessibleContext, BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENTBOTTOM, CENTER, EAST, HORIZONTAL, LEADING, LEFT, NEXT, NORTH, NORTH_EAST, NORTH_WEST, PREVIOUS, RIGHT, SOUTH, SOUTH_EAST, SOUTH_WEST, TOP, TRAILING, VERTICAL, WESTABORT, ALLBITS, ERROR, FRAMEBITS, HEIGHT, PROPERTIES, SOMEBITS, WIDTH| Constructor and Description |
|---|
DefaultListCellRenderer()
Constructs a default renderer object for an item in a list.
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| Modifier and Type | Method and Description |
|---|---|
void |
firePropertyChange(String
Overridden for performance reasons.
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void |
firePropertyChange(String
Overridden for performance reasons.
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void |
firePropertyChange(String
Overridden for performance reasons.
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void |
firePropertyChange(String
Overridden for performance reasons.
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void |
firePropertyChange(String
Overridden for performance reasons.
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void |
firePropertyChange(String
Overridden for performance reasons.
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void |
firePropertyChange(String
Overridden for performance reasons.
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protected void |
firePropertyChange(String
Overridden for performance reasons.
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void |
firePropertyChange(String
Overridden for performance reasons.
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Component |
getListCellRendererComponent(JList
Return a component that has been configured to display the specified value.
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void |
invalidate()
Overridden for performance reasons.
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boolean |
isOpaque()
Overridden for performance reasons.
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void |
repaint()
Overridden for performance reasons.
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void |
repaint(long tm, int x, int y, int width, int height)
Overridden for performance reasons.
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void |
repaint(Rectangle
Overridden for performance reasons.
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void |
revalidate()
Overridden for performance reasons.
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void |
validate()
Overridden for performance reasons.
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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, updateUIaddAncestorListener, 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, updateadd, 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, validateTreeaction, 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, getPeer, 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, resize, resize, setBounds, setBounds, setComponentOrientation, setCursor, setDropTarget, setFocusable, setFocusTraversalKeysEnabled, setIgnoreRepaint, setLocale, setLocation, setLocation, setName, setSize, setSize, show, show, size, toString, transferFocus, transferFocusBackward, transferFocusUpCycleprotected static BordernoFocusBorder
public DefaultListCellRenderer()
public ComponentgetListCellRendererComponent(JList <?> list, Object value, int index, boolean isSelected, boolean cellHasFocus)
ListCellRenderer
paint method 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 which
getPreferredSize can be invoked.
getListCellRendererComponent in interface
ListCellRenderer<Object>
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.
JList,
ListSelectionModel,
ListModel
public boolean isOpaque()
isOpaque in class
JComponent
true if the background is completely opaque and differs from the JList's background;
false otherwise
JComponent.setOpaque(boolean)
public void validate()
validate in class
Container
Container.add(java.awt.Component) ,
Container.invalidate() ,
Container.isValidateRoot() ,
JComponent.revalidate() ,
Container.validateTree()
public void invalidate()
invalidate in class
Container
Container.validate() ,
Container.layout() ,
LayoutManager2
public void repaint()
repaint in class
Component
Component.update(Graphics)
public void revalidate()
revalidate in class
JComponent
Component.invalidate() ,
Container.validate() ,
JComponent.isValidateRoot() ,
RepaintManager.addInvalidComponent(javax.swing.JComponent)
public void repaint(long tm,
int x,
int y,
int width,
int height)
repaint in class
JComponent
tm - this parameter is not used
x - the x value of the dirty region
y - the y value of the dirty region
width - the width of the dirty region
height - the height of the dirty region
JComponent.isPaintingOrigin() ,
Component.isShowing() ,
RepaintManager.addDirtyRegion(javax.swing.JComponent, int, int, int, int)
public void repaint(Rectangler)
repaint in class
JComponent
r - a
Rectangle containing the dirty region
JComponent.isPaintingOrigin() ,
Component.isShowing() ,
RepaintManager.addDirtyRegion(javax.swing.JComponent, int, int, int, int)
protected void firePropertyChange(StringpropertyName, Object oldValue, Object newValue)
firePropertyChange in class
Component
propertyName - the property whose value has changed
oldValue - the property's previous value
newValue - the property's new value
public void firePropertyChange(StringpropertyName, byte oldValue, byte newValue)
firePropertyChange in class
Component
propertyName - the programmatic name of the property that was changed
oldValue - the old value of the property (as a byte)
newValue - the new value of the property (as a byte)
Component.firePropertyChange(java.lang.String, java.lang.Object, java.lang.Object)
public void firePropertyChange(StringpropertyName, char oldValue, char newValue)
firePropertyChange in class
JComponent
propertyName - the programmatic name of the property that was changed
oldValue - the old value of the property (as a char)
newValue - the new value of the property (as a char)
Component.firePropertyChange(java.lang.String, java.lang.Object, java.lang.Object)
public void firePropertyChange(StringpropertyName, short oldValue, short newValue)
firePropertyChange in class
Component
propertyName - the programmatic name of the property that was changed
oldValue - the old value of the property (as a short)
newValue - the old value of the property (as a short)
Component.firePropertyChange(java.lang.String, java.lang.Object, java.lang.Object)
public void firePropertyChange(StringpropertyName, int oldValue, int newValue)
firePropertyChange in class
JComponent
propertyName - the property whose value has changed
oldValue - the property's previous value
newValue - the property's new value
public void firePropertyChange(StringpropertyName, long oldValue, long newValue)
firePropertyChange in class
Component
propertyName - the programmatic name of the property that was changed
oldValue - the old value of the property (as a long)
newValue - the new value of the property (as a long)
Component.firePropertyChange(java.lang.String, java.lang.Object, java.lang.Object)
public void firePropertyChange(StringpropertyName, float oldValue, float newValue)
firePropertyChange in class
Component
propertyName - the programmatic name of the property that was changed
oldValue - the old value of the property (as a float)
newValue - the new value of the property (as a float)
Component.firePropertyChange(java.lang.String, java.lang.Object, java.lang.Object)
public void firePropertyChange(StringpropertyName, double oldValue, double newValue)
firePropertyChange in class
Component
propertyName - the programmatic name of the property that was changed
oldValue - the old value of the property (as a double)
newValue - the new value of the property (as a double)
Component.firePropertyChange(java.lang.String, java.lang.Object, java.lang.Object)
public void firePropertyChange(StringpropertyName, boolean oldValue, boolean newValue)
firePropertyChange in class
JComponent
propertyName - the property whose value has changed
oldValue - the property's previous value
newValue - the property's new value