站内搜索: 请输入搜索关键词
当前页面: 在线文档首页 > JDK 5 Documentation v1.2.2, Java 2 SDK 英文文档

Java(TM) 2 Platform, Standard Edition, v1.2.2 API Specification: Class DefaultTreeCellRenderer - JDK 5 Documentation v1.2.2, Java 2 SDK 英文文档

Overview  Package   Class  Use  Tree  Deprecated  Index  Help 
JavaTM 2 Platform
Standard Edition
 PREV CLASS   NEXT CLASS FRAMES    NO FRAMES
SUMMARY:  INNER | FIELD | CONSTR | METHOD DETAIL:  FIELD | CONSTR | METHOD

javax.swing.tree
Class DefaultTreeCellRenderer

java.lang.Object
  |
  +--java.awt.Component
        |
        +--java.awt.Container
              |
              +--javax.swing.JComponent
                    |
                    +--javax.swing.JLabel
                          |
                          +--javax.swing.tree.DefaultTreeCellRenderer
public class DefaultTreeCellRenderer
extends JLabel
implements TreeCellRenderer

Displays an entry in a tree.

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. A future release of Swing will provide support for long term persistence.

See Also:
Serialized Form

Inner classes inherited from class javax.swing.JLabel
JLabel.AccessibleJLabel
 
Inner classes inherited from class javax.swing.JComponent
JComponent.AccessibleJComponent
 
Field Summary
protected  Color backgroundNonSelectionColor
          Color to use for the background when the node isn't selected.
protected  Color backgroundSelectionColor
          Color to use for the background when a node is selected.
protected  Color borderSelectionColor
          Color to use for the background when the node isn't selected.
protected  Icon closedIcon
          Icon used to show non-leaf nodes that aren't expanded.
protected  Icon leafIcon
          Icon used to show leaf nodes.
protected  Icon openIcon
          Icon used to show non-leaf nodes that are expanded.
protected  boolean selected
          Is the value currently selected.
protected  Color textNonSelectionColor
          Color to use for the foreground for non-selected nodes.
protected  Color textSelectionColor
          Color to use for the foreground for selected nodes.
 
Fields inherited from class javax.swing.JLabel
labelFor
 
Fields inherited from class javax.swing.JComponent
accessibleContext, listenerList, TOOL_TIP_TEXT_KEY, ui, UNDEFINED_CONDITION, WHEN_ANCESTOR_OF_FOCUSED_COMPONENT, WHEN_FOCUSED, WHEN_IN_FOCUSED_WINDOW
 
Fields inherited from class java.awt.Component
BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT
 
Constructor Summary
DefaultTreeCellRenderer()
          Returns a new instance of DefaultTreeCellRenderer.
 
Method Summary
 Color getBackgroundNonSelectionColor()
          Returns the background color to be used for non selected nodes.
 Color getBackgroundSelectionColor()
          Returns the color to use for the background if node is selected.
 Color getBorderSelectionColor()
          Returns the color the border is drawn.
 Icon getClosedIcon()
          Returns the icon used to represent non-leaf nodes that are not expanded.
 Icon getDefaultClosedIcon()
          Returns the default icon, for the current laf, that is used to represent non-leaf nodes that are not expanded.
 Icon getDefaultLeafIcon()
          Returns the default icon, for the current laf, that is used to represent leaf nodes.
 Icon getDefaultOpenIcon()
          Returns the default icon, for the current laf, that is used to represent non-leaf nodes that are expanded.
 Icon getLeafIcon()
          Returns the icon used to represent leaf nodes.
 Icon getOpenIcon()
          Returns the icon used to represent non-leaf nodes that are expanded.
 Dimension getPreferredSize()
          Overrides JComponent.getPreferredSize to return slightly wider preferred size value.
 Color getTextNonSelectionColor()
          Returns the color the text is drawn with when the node isn't selected.
 Color getTextSelectionColor()
          Returns the color the text is drawn with when the node is selected.
 Component getTreeCellRendererComponent(JTree tree, Object value, boolean sel, boolean expanded, boolean leaf, int row, boolean hasFocus)
          Configures the renderer based on the passed in components.
 void paint(Graphics g)
          Paints the value.
 void setBackground(Color color)
          Subclassed to only accept the color if it isn't a ColorUIResource.
 void setBackgroundNonSelectionColor(Color newColor)
          Sets the background color to be used for non selected nodes.
 void setBackgroundSelectionColor(Color newColor)
          Sets the color to use for the background if node is selected.
 void setBorderSelectionColor(Color newColor)
          Sets the color to use for the border.
 void setClosedIcon(Icon newIcon)
          Sets the icon used to represent non-leaf nodes that are not expanded.
 void setFont(Font font)
          Subclassed to only accept the font if it isn't a FontUIResource.
 void setLeafIcon(Icon newIcon)
          Sets the icon used to represent leaf nodes.
 void setOpenIcon(Icon newIcon)
          Sets the icon used to represent non-leaf nodes that are expanded.
 void setTextNonSelectionColor(Color newColor)
          Sets the color the text is drawn with when the node isn't selected.
 void setTextSelectionColor(Color newColor)
          Sets the color the text is drawn with when the node is selected.
 
Methods inherited from class javax.swing.JLabel
checkHorizontalKey, checkVerticalKey, getAccessibleContext, getDisabledIcon, getDisplayedMnemonic, getHorizontalAlignment, getHorizontalTextPosition, getIcon, getIconTextGap, getLabelFor, getText, getUI, getUIClassID, getVerticalAlignment, getVerticalTextPosition, paramString, setDisabledIcon, setDisplayedMnemonic, setDisplayedMnemonic, setHorizontalAlignment, setHorizontalTextPosition, setIcon, setIconTextGap, setLabelFor, setText, setUI, setVerticalAlignment, setVerticalTextPosition, updateUI
 
Methods inherited from class javax.swing.JComponent
addAncestorListener, addNotify, addPropertyChangeListener, addPropertyChangeListener, addVetoableChangeListener, computeVisibleRect, contains, createToolTip, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, fireVetoableChange, getActionForKeyStroke, getAlignmentX, getAlignmentY, getAutoscrolls, getBorder, getBounds, getClientProperty, getComponentGraphics, getConditionForKeyStroke, getDebugGraphicsOptions, getGraphics, getHeight, getInsets, getInsets, getLocation, getMaximumSize, getMinimumSize, getNextFocusableComponent, getRegisteredKeyStrokes, getRootPane, getSize, getToolTipLocation, getToolTipText, getToolTipText, getTopLevelAncestor, getVisibleRect, getWidth, getX, getY, grabFocus, hasFocus, isDoubleBuffered, isFocusCycleRoot, isFocusTraversable, isLightweightComponent, isManagingFocus, isOpaque, isOptimizedDrawingEnabled, isPaintingTile, isRequestFocusEnabled, isValidateRoot, paintBorder, paintChildren, paintComponent, paintImmediately, paintImmediately, processComponentKeyEvent, processFocusEvent, processKeyEvent, processMouseMotionEvent, putClientProperty, registerKeyboardAction, registerKeyboardAction, removeAncestorListener, removeNotify, removePropertyChangeListener, removePropertyChangeListener, removeVetoableChangeListener, repaint, repaint, requestDefaultFocus, requestFocus, resetKeyboardActions, reshape, revalidate, scrollRectToVisible, setAlignmentX, setAlignmentY, setAutoscrolls, setBorder, setDebugGraphicsOptions, setDoubleBuffered, setEnabled, setForeground, setMaximumSize, setMinimumSize, setNextFocusableComponent, setOpaque, setPreferredSize, setRequestFocusEnabled, setToolTipText, setUI, setVisible, unregisterKeyboardAction, update
 
Methods inherited from class java.awt.Container
add, add, add, add, add, addContainerListener, addImpl, countComponents, deliverEvent, doLayout, findComponentAt, findComponentAt, getComponent, getComponentAt, getComponentAt, getComponentCount, getComponents, getLayout, insets, invalidate, isAncestorOf, layout, list, list, locate, minimumSize, paintComponents, preferredSize, print, printComponents, processContainerEvent, processEvent, remove, remove, removeAll, removeContainerListener, setCursor, setLayout, validate, validateTree
 
Methods inherited from class java.awt.Component
action, add, addComponentListener, addFocusListener, addInputMethodListener, addKeyListener, addMouseListener, addMouseMotionListener, bounds, checkImage, checkImage, coalesceEvents, contains, createImage, createImage, disable, disableEvents, dispatchEvent, enable, enable, enableEvents, enableInputMethods, getBackground, getBounds, getColorModel, getComponentOrientation, getCursor, getDropTarget, getFont, getFontMetrics, getForeground, getInputContext, getInputMethodRequests, getLocale, getLocation, getLocationOnScreen, getName, getParent, getPeer, getSize, getToolkit, getTreeLock, gotFocus, handleEvent, hide, imageUpdate, inside, isDisplayable, isEnabled, isLightweight, isShowing, isValid, isVisible, keyDown, keyUp, list, list, list, location, lostFocus, mouseDown, mouseDrag, mouseEnter, mouseExit, mouseMove, mouseUp, move, nextFocus, paintAll, postEvent, prepareImage, prepareImage, printAll, processComponentEvent, processInputMethodEvent, processMouseEvent, remove, removeComponentListener, removeFocusListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, repaint, repaint, repaint, resize, resize, setBounds, setBounds, setComponentOrientation, setDropTarget, setLocale, setLocation, setLocation, setName, setSize, setSize, show, show, size, toString, transferFocus
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Field Detail

selected

protected boolean selected
Is the value currently selected.

closedIcon

protected transient Icon closedIcon
Icon used to show non-leaf nodes that aren't expanded.

leafIcon

protected transient Icon leafIcon
Icon used to show leaf nodes.

openIcon

protected transient Icon openIcon
Icon used to show non-leaf nodes that are expanded.

textSelectionColor

protected Color textSelectionColor
Color to use for the foreground for selected nodes.

textNonSelectionColor

protected Color textNonSelectionColor
Color to use for the foreground for non-selected nodes.

backgroundSelectionColor

protected Color backgroundSelectionColor
Color to use for the background when a node is selected.

backgroundNonSelectionColor

protected Color backgroundNonSelectionColor
Color to use for the background when the node isn't selected.

borderSelectionColor

protected Color borderSelectionColor
Color to use for the background when the node isn't selected.
Constructor Detail

DefaultTreeCellRenderer

public DefaultTreeCellRenderer()
Returns a new instance of DefaultTreeCellRenderer. Alignment is set to left aligned. Icons and text color are determined from the UIManager.
Method Detail

getDefaultOpenIcon

public Icon getDefaultOpenIcon()
Returns the default icon, for the current laf, that is used to represent non-leaf nodes that are expanded.

getDefaultClosedIcon

public Icon getDefaultClosedIcon()
Returns the default icon, for the current laf, that is used to represent non-leaf nodes that are not expanded.

getDefaultLeafIcon

public Icon getDefaultLeafIcon()
Returns the default icon, for the current laf, that is used to represent leaf nodes.

setOpenIcon

public void setOpenIcon(Icon newIcon)
Sets the icon used to represent non-leaf nodes that are expanded.

getOpenIcon

public Icon getOpenIcon()
Returns the icon used to represent non-leaf nodes that are expanded.

setClosedIcon

public void setClosedIcon(Icon newIcon)
Sets the icon used to represent non-leaf nodes that are not expanded.

getClosedIcon

public Icon getClosedIcon()
Returns the icon used to represent non-leaf nodes that are not expanded.

setLeafIcon

public void setLeafIcon(Icon newIcon)
Sets the icon used to represent leaf nodes.

getLeafIcon

public Icon getLeafIcon()
Returns the icon used to represent leaf nodes.

setTextSelectionColor

public void setTextSelectionColor(Color newColor)
Sets the color the text is drawn with when the node is selected.

getTextSelectionColor

public Color getTextSelectionColor()
Returns the color the text is drawn with when the node is selected.

setTextNonSelectionColor

public void setTextNonSelectionColor(Color newColor)
Sets the color the text is drawn with when the node isn't selected.

getTextNonSelectionColor

public Color getTextNonSelectionColor()
Returns the color the text is drawn with when the node isn't selected.

setBackgroundSelectionColor

public void setBackgroundSelectionColor(Color newColor)
Sets the color to use for the background if node is selected.

getBackgroundSelectionColor

public Color getBackgroundSelectionColor()
Returns the color to use for the background if node is selected.

setBackgroundNonSelectionColor

public void setBackgroundNonSelectionColor(Color newColor)
Sets the background color to be used for non selected nodes.

getBackgroundNonSelectionColor

public Color getBackgroundNonSelectionColor()
Returns the background color to be used for non selected nodes.

setBorderSelectionColor

public void setBorderSelectionColor(Color newColor)
Sets the color to use for the border.

getBorderSelectionColor

public Color getBorderSelectionColor()
Returns the color the border is drawn.

setFont

public void setFont(Font font)
Subclassed to only accept the font if it isn't a FontUIResource.
Overrides:
setFont in class JComponent
Tags copied from class: JComponent
See Also:
Component.getFont()

setBackground

public void setBackground(Color color)
Subclassed to only accept the color if it isn't a ColorUIResource.
Overrides:
setBackground in class JComponent
Tags copied from class: JComponent
See Also:
Component.getBackground()

getTreeCellRendererComponent

public Component getTreeCellRendererComponent(JTree tree,
                                              Object value,
                                              boolean sel,
                                              boolean expanded,
                                              boolean leaf,
                                              int row,
                                              boolean hasFocus)
Configures the renderer based on the passed in components. The value is set from messaging value with toString(). The foreground color is set based on the selection and the icon is set based on on leaf and expanded.
Specified by:
getTreeCellRendererComponent in interface TreeCellRenderer
Tags copied from interface: TreeCellRenderer
Returns:
Component that the renderer uses to draw the value.

paint

public void paint(Graphics g)
Paints the value. The background is filled based on selected.
Overrides:
paint in class JComponent
Tags copied from class: JComponent
See Also:
JComponent.paintComponent(java.awt.Graphics), JComponent.paintBorder(java.awt.Graphics), JComponent.paintChildren(java.awt.Graphics), JComponent.getComponentGraphics(java.awt.Graphics), JComponent.repaint(long, int, int, int, int)

getPreferredSize

public Dimension getPreferredSize()
Overrides JComponent.getPreferredSize to return slightly wider preferred size value.
Overrides:
getPreferredSize in class JComponent
Tags copied from class: JComponent
Returns:
the value of the preferredSize property.
See Also:
JComponent.setPreferredSize(java.awt.Dimension)
Overview  Package   Class  Use  Tree  Deprecated  Index  Help 
JavaTM 2 Platform
Standard Edition
 PREV CLASS   NEXT CLASS FRAMES    NO FRAMES
SUMMARY:  INNER | FIELD | CONSTR | METHOD DETAIL:  FIELD | CONSTR | METHOD
Submit a bug or feature
Java, Java 2D, and JDBC are a trademarks or registered trademarks of Sun Microsystems, Inc. in the US and other countries.
Copyright 1993-1999 Sun Microsystems, Inc. 901 San Antonio Road,
Palo Alto, California, 94303, U.S.A. All Rights Reserved.