Class DefaultTreeCellRenderer

java.lang.Object

vaadinx.awt.Component

vaadinx.awt.Container

vaadinx.swing.JComponent

vaadinx.swing.JLabel

vaadinx.swing.tree.DefaultTreeCellRenderer

All Implemented Interfaces:

ImageObserver, MenuContainer, Serializable, Accessible, SwingConstants, TreeCellRenderer

public class DefaultTreeCellRenderer
extends JLabel
implements TreeCellRenderer

Port of DefaultTreeCellRenderer. Extends JLabel so its peer is the SJLabel surrogate (a real Vaadin Component), satisfying the D_jtree_renderer_registry bridge's "return a Component-shaped emulator" requirement — exactly DefaultTableCellRenderer's shape (D_jtable_type_ports).

getTreeCellRendererComponent routes the value through tree.convertValueToText(...) — the JDK-overridable formatting hook — and picks the leaf / open / closed Icon for the JLabel icon slot (D_icon_rendering Path 1: ImageIcon renders through the surrogate's Vaadin-Image bridge). Icons default to null: the JDK defaults come from UIManager / L&F, which is dropped per R_match_swing_errors sub-bucket (b), so a fresh renderer shows text only until the app installs its own icons.

Selection / focus colour chrome (setBackgroundSelectionColor et al.) stores and round-trips; only the rendered effect is declined, because the Vaadin theme owns a Grid's row-selection styling and an inline-CSS shadow would not reach the rendered snapshot anyway. Keeping the values is R_decline_effect_only: the effect is droppable, the state never was. JDK's DefaultTreeCellRenderer also overrides the paint/validate family as performance no-ops; our paint pipeline doesn't run (R_layouts_close_enough), so those overrides are omitted rather than replicated.

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
protected Color	backgroundNonSelectionColor
protected Color	backgroundSelectionColor
protected Color	borderSelectionColor
protected Icon	closedIcon
protected boolean	hasFocus
protected Icon	leafIcon
protected Icon	openIcon
protected boolean	selected
protected Color	textNonSelectionColor
protected Color	textSelectionColor

Fields inherited from class JLabel

labelFor

Fields inherited from class JComponent

TOOL_TIP_TEXT_KEY, UNDEFINED_CONDITION, WHEN_ANCESTOR_OF_FOCUSED_COMPONENT, WHEN_FOCUSED, WHEN_IN_FOCUSED_WINDOW

Fields inherited from class Component

BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, FILL_CHROME, FILL_DEFAULT, LEFT_ALIGNMENT, listenerList, 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
DefaultTreeCellRenderer()

Method Summary

Modifier and Type	Method	Description
Color	getBackgroundNonSelectionColor()
Color	getBackgroundSelectionColor()
Color	getBorderSelectionColor()
Icon	getClosedIcon()
Icon	getDefaultClosedIcon()	See getDefaultLeafIcon().
Icon	getDefaultLeafIcon()	JDK sources these from UIManager; L&F dispatch is dropped per R_match_swing_errors sub-bucket (b), so the "default" icons are honestly null.
Icon	getDefaultOpenIcon()	See getDefaultLeafIcon().
Icon	getLeafIcon()
Icon	getOpenIcon()
Color	getTextNonSelectionColor()
Color	getTextSelectionColor()
Component	getTreeCellRendererComponent(JTree tree, Object value, boolean selected, boolean expanded, boolean leaf, int row, boolean hasFocus)	Build the rendering component for value.
void	setBackgroundNonSelectionColor(Color newColor)
void	setBackgroundSelectionColor(Color newColor)
void	setBorderSelectionColor(Color newColor)
void	setClosedIcon(Icon newIcon)	Icon shown for collapsed non-leaf nodes.
void	setLeafIcon(Icon newIcon)	Icon shown for leaf nodes.
void	setOpenIcon(Icon newIcon)	Icon shown for expanded non-leaf nodes.
void	setTextNonSelectionColor(Color newColor)
void	setTextSelectionColor(Color newColor)	Store the colour selected text paints in.

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, updateUI

Methods inherited from class JComponent

addAncestorListener, addNotify, addVetoableChangeListener, computeVisibleRect, contains, createToolTip, disable, enable, firePropertyChange, firePropertyChange, firePropertyChange, fireVetoableChange, getActionForKeyStroke, getActionMap, getAlignmentX, getAlignmentY, getAncestorListeners, getAutoscrolls, getBaseline, 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, isOpaque, isOptimizedDrawingEnabled, isPaintingForPrint, isPaintingOrigin, isPaintingTile, isRequestFocusEnabled, isValidateRoot, paint, paintBorder, paintChildren, paintComponent, paintImmediately, paintImmediately, print, printAll, printBorder, printChildren, printComponent, processComponentKeyEvent, processKeyBinding, 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, setVisible, unregisterKeyboardAction, update

Methods inherited from class Container

add, add, add, add, add, addContainerListener, addImpl, addPropertyChangeListener, addPropertyChangeListener, addSlotChild, applyComponentOrientation, areFocusTraversalKeysSet, countComponents, deliverEvent, doLayout, findComponentAt, findComponentAt, fireHierarchyEvent, getComponent, getComponentAt, getComponentAt, getComponentCount, getComponents, getComponentZOrder, getContainerListeners, getFocusTraversalKeys, getFocusTraversalPolicy, getLayout, getMousePosition, insets, invalidate, isAncestorOf, isFocusCycleRoot, isFocusCycleRoot, isFocusTraversalPolicyProvider, isFocusTraversalPolicySet, layout, list, list, locate, minimumSize, paintComponents, peerContentElement, preferredSize, printComponents, processContainerEvent, processEvent, remove, remove, removeAll, removeContainerListener, removeSlotChild, setComponentZOrder, setFocusCycleRoot, setFocusTraversalPolicy, setFocusTraversalPolicyProvider, setLayout, transferFocusDownCycle, validate, validateTree

Methods inherited from class Component

action, add, addComponentListener, addFocusListener, addHierarchyBoundsListener, addHierarchyListener, addInputMethodListener, addKeyListener, addMouseListener, addMouseMotionListener, addMouseWheelListener, applyBackgroundToPeer, applyVisibleToPeer, awtListeners, bounds, checkImage, checkImage, coalesceEvents, contains, createImage, createImage, createVolatileImage, createVolatileImage, defaultFillCssClass, disableEvents, dispatchEvent, enable, enableEvents, enableInputMethods, fireComponentEvent, 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, getPeer, getPropertyChangeListeners, getPropertyChangeListeners, getSize, getToolkit, getTreeLock, gotFocus, handleEvent, hasFocus, inside, isBackgroundSet, isCursorSet, isDisplayable, isEnabled, isFocusable, isFocusOwner, isFocusTraversable, isFontSet, isForegroundSet, isLightweight, isMaximumSizeSet, isMinimumSizeSet, isPreferredSizeSet, isShowing, isThemeDefault, isValid, isVisible, keyDown, keyUp, list, list, list, location, lostFocus, mouseDown, mouseDrag, mouseEnter, mouseExit, mouseMove, mouseUp, move, nextFocus, paintAll, peerIs, postEvent, prepareImage, prepareImage, processComponentEvent, processFocusEvent, processHierarchyBoundsEvent, processHierarchyEvent, processInputMethodEvent, processKeyEvent, processMouseEvent, processMouseMotionEvent, processMouseWheelEvent, remove, removeComponentListener, removeFocusListener, removeHierarchyBoundsListener, removeHierarchyListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removeMouseWheelListener, removePropertyChangeListener, removePropertyChangeListener, repaint, repaint, repaint, resize, resize, setBounds, setBounds, setComponentOrientation, setCursor, setDropTarget, setFocusable, setFocusTraversalKeysEnabled, setIgnoreRepaint, setLocale, setLocation, setLocation, setMixingCutoutShape, setName, setSize, setSize, show, show, size, suppressMouseBridge, toString, transferFocus, transferFocusBackward, transferFocusUpCycle, withPeer, withPeerOnLiveUI

Methods inherited from class Object

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

Field Details

leafIcon

protected Icon leafIcon

openIcon

protected Icon openIcon

closedIcon

protected Icon closedIcon

textSelectionColor

protected Color textSelectionColor

textNonSelectionColor

protected Color textNonSelectionColor

backgroundSelectionColor

protected Color backgroundSelectionColor

backgroundNonSelectionColor

protected Color backgroundNonSelectionColor

borderSelectionColor

protected Color borderSelectionColor

selected

protected boolean selected

hasFocus

protected boolean hasFocus

Constructor Details

DefaultTreeCellRenderer

public DefaultTreeCellRenderer()

Method Details

setLeafIcon

public void setLeafIcon(Icon newIcon)

Icon shown for leaf nodes. null (the default) renders no icon.

getLeafIcon

public Icon getLeafIcon()

setOpenIcon

public void setOpenIcon(Icon newIcon)

Icon shown for expanded non-leaf nodes. null renders no icon.

getOpenIcon

public Icon getOpenIcon()

setClosedIcon

public void setClosedIcon(Icon newIcon)

Icon shown for collapsed non-leaf nodes. null renders no icon.

getClosedIcon

public Icon getClosedIcon()

getDefaultLeafIcon

public Icon getDefaultLeafIcon()

JDK sources these from UIManager; L&F dispatch is dropped per R_match_swing_errors sub-bucket (b), so the "default" icons are honestly null.

getDefaultOpenIcon

public Icon getDefaultOpenIcon()

See getDefaultLeafIcon().

getDefaultClosedIcon

public Icon getDefaultClosedIcon()

See getDefaultLeafIcon().

setTextSelectionColor

public void setTextSelectionColor(Color newColor)

Store the colour selected text paints in. The value round-trips; the rendered effect is declined, since a Grid's selection chrome is the theme's ([D_theme_is_lookandfeel](../../../../../../emulators/decisions.md#D_theme_is_lookandfeel)).

null is stored as null and read back as null — the JDK keeps no fallback here, unlike JTabbedPane's per-tab colours.

getTextSelectionColor

public Color getTextSelectionColor()

setTextNonSelectionColor

public void setTextNonSelectionColor(Color newColor)

See Also:

• setTextSelectionColor(Color)

getTextNonSelectionColor

public Color getTextNonSelectionColor()

setBackgroundSelectionColor

public void setBackgroundSelectionColor(Color newColor)

See Also:

• setTextSelectionColor(Color)

getBackgroundSelectionColor

public Color getBackgroundSelectionColor()

setBackgroundNonSelectionColor

public void setBackgroundNonSelectionColor(Color newColor)

See Also:

• setTextSelectionColor(Color)

getBackgroundNonSelectionColor

public Color getBackgroundNonSelectionColor()

setBorderSelectionColor

public void setBorderSelectionColor(Color newColor)

See Also:

• setTextSelectionColor(Color)

getBorderSelectionColor

public Color getBorderSelectionColor()

getTreeCellRendererComponent

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

Description copied from interface: TreeCellRenderer

Build the rendering component for value.

Specified by:

getTreeCellRendererComponent in interface TreeCellRenderer

Parameters:

tree - the rendering host — the emulator JTree in emulator flow, null from pure-surrogate contexts.

value - the node to render. null is valid.

selected - whether the node is currently selected.

expanded - whether the node is currently expanded.

leaf - whether the node is a leaf per the model.

row - the node's visible-row index, or -1 when the node isn't currently displayed.

hasFocus - always false from the D_jtree_renderer_registry bridge — Vaadin TreeGrid has no per-cell focus signal at render time (R_vaadin_first sub-bucket (c)).