Class ContextTreeCellRenderer

java.lang.Object

java.awt.Component

java.awt.Container

javax.swing.JComponent

javax.swing.JLabel

javax.swing.tree.DefaultTreeCellRenderer

uno.anahata.asi.swing.agi.context.ContextTreeCellRenderer

All Implemented Interfaces:

ImageObserver, MenuContainer, Serializable, Accessible, SwingConstants, TreeCellRenderer

public class ContextTreeCellRenderer
extends DefaultTreeCellRenderer

A custom TreeCellRenderer for the context tree that provides specific icons and labels for different types of context nodes.

It prioritizes specialized icons provided by the nodes themselves (e.g., NetBeans project or file icons) and ensures that the node's display name is used instead of its toString() representation.

It also implements automatic icon fading (desaturation) and text graying for inactive nodes (e.g., disabled toolkits or pruned messages).

Author:

anahata

See Also:

• Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class JLabel

JLabel.AccessibleJLabel

Nested classes/interfaces inherited from class JComponent

JComponent.AccessibleJComponent

Nested classes/interfaces inherited from class Container

Container.AccessibleAWTContainer

Nested classes/interfaces inherited from class Component

Component.AccessibleAWTComponent, Component.BaselineResizeBehavior, Component.BltBufferStrategy, Component.FlipBufferStrategy

Field Summary

Fields

Modifier and Type	Field	Description
private final Icon	messageIcon	Default icon for individual messages.
private final Icon	partIcon	Default icon for individual message parts.
private final Icon	toolIcon	Programmatic icon for individual tools.
private final Icon	toolkitIcon	Default icon for toolkits (authentic Java logo).
private final Icon	toolManagerIcon	Specialized icon for the ToolManager node.
private final Icon	toolsIcon	Refined programmatic icon for tool containers.

Fields inherited from class DefaultTreeCellRenderer

backgroundNonSelectionColor, backgroundSelectionColor, borderSelectionColor, closedIcon, hasFocus, leafIcon, openIcon, selected, textNonSelectionColor, textSelectionColor

Fields inherited from class JLabel

labelFor

Fields inherited from class JComponent

listenerList, TOOL_TIP_TEXT_KEY, ui, UNDEFINED_CONDITION, WHEN_ANCESTOR_OF_FOCUSED_COMPONENT, WHEN_FOCUSED, WHEN_IN_FOCUSED_WINDOW

Fields inherited from class Component

accessibleContext, BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT

Fields inherited from interface ImageObserver

ABORT, ALLBITS, ERROR, FRAMEBITS, HEIGHT, PROPERTIES, SOMEBITS, WIDTH

Fields inherited from interface 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

Constructors

Constructor	Description
ContextTreeCellRenderer()

Method Summary

Modifier and Type	Method	Description
Component	getTreeCellRendererComponent(JTree tree, Object value, boolean sel, boolean expanded, boolean leaf, int row, boolean hasFocus)	Implementation details: 1.

Methods inherited from class DefaultTreeCellRenderer

firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, getBackgroundNonSelectionColor, getBackgroundSelectionColor, getBorderSelectionColor, getClosedIcon, getDefaultClosedIcon, getDefaultLeafIcon, getDefaultOpenIcon, getFont, getLeafIcon, getOpenIcon, getPreferredSize, getTextNonSelectionColor, getTextSelectionColor, invalidate, paint, repaint, repaint, repaint, revalidate, setBackground, setBackgroundNonSelectionColor, setBackgroundSelectionColor, setBorderSelectionColor, setClosedIcon, setFont, setLeafIcon, setOpenIcon, setTextNonSelectionColor, setTextSelectionColor, updateUI, validate

Methods inherited from class 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

Methods inherited from class 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, getRegisteredKeyStrokes, getRootPane, getSize, getToolTipLocation, getToolTipText, getToolTipText, getTopLevelAncestor, getTransferHandler, getVerifyInputWhenFocusTarget, getVetoableChangeListeners, getVisibleRect, getWidth, getX, getY, grabFocus, hide, isDoubleBuffered, isLightweightComponent, isManagingFocus, isOpaque, isOptimizedDrawingEnabled, isPaintingForPrint, isPaintingOrigin, isPaintingTile, isRequestFocusEnabled, isValidateRoot, 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, setBorder, setComponentPopupMenu, setDebugGraphicsOptions, setDefaultLocale, setDoubleBuffered, setEnabled, setFocusTraversalKeys, setForeground, setInheritsPopupMenu, setInputMap, setInputVerifier, setMaximumSize, setMinimumSize, setNextFocusableComponent, setOpaque, setPreferredSize, setRequestFocusEnabled, setToolTipText, setTransferHandler, setUI, setVerifyInputWhenFocusTarget, setVisible, unregisterKeyboardAction, update

Methods inherited from 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, 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, validateTree

Methods inherited from 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, getBackground, getBounds, getColorModel, getComponentListeners, getComponentOrientation, getCursor, getDropTarget, getFocusCycleRootAncestor, getFocusListeners, getFocusTraversalKeysEnabled, 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

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Details

toolkitIcon

private final Icon toolkitIcon

Default icon for toolkits (authentic Java logo).

toolIcon

private final Icon toolIcon

Programmatic icon for individual tools.

toolsIcon

private final Icon toolsIcon

Refined programmatic icon for tool containers.

toolManagerIcon

private final Icon toolManagerIcon

Specialized icon for the ToolManager node.

messageIcon

private final Icon messageIcon

Default icon for individual messages.

partIcon

private final Icon partIcon

Default icon for individual message parts.

Constructor Details

ContextTreeCellRenderer

public ContextTreeCellRenderer()

Method Details

getTreeCellRendererComponent

public Component getTreeCellRendererComponent(JTree tree,
 Object value,
 boolean sel,
 boolean expanded,
 boolean leaf,
 int row,
 boolean hasFocus)

Implementation details: 1. Sets the text to the node's name. 2. Inspects the node for a specialized icon, otherwise falls back to a default icon based on the node type. 3. If no specialized or type-specific icon is found, it preserves the default JTree folder/file icons. 4. Fades the icon and grays out the text if the node is inactive.

Specified by:

getTreeCellRendererComponent in interface TreeCellRenderer

Overrides:

getTreeCellRendererComponent in class DefaultTreeCellRenderer