Package mgui.interfaces.attributes.tree

Class NonPrivateDefaultTreeCellRenderer

java.lang.Object
java.awt.Component
java.awt.Container
javax.swing.JComponent
javax.swing.JLabel
mgui.interfaces.attributes.tree.NonPrivateDefaultTreeCellRenderer
All Implemented Interfaces:
java.awt.image.ImageObserver, java.awt.MenuContainer, java.io.Serializable, javax.accessibility.Accessible, javax.swing.SwingConstants, javax.swing.tree.TreeCellRenderer
public class NonPrivateDefaultTreeCellRenderer
extends javax.swing.JLabel
implements javax.swing.tree.TreeCellRenderer
Displays an entry in a tree. DefaultTreeCellRenderer is not opaque and unless you subclass paint you should not change this. See How to Use Trees in The Java Tutorial for examples of customizing node display using this class.

Implementation Note: This class overrides invalidate, validate, revalidate, repaint, and firePropertyChange solely to improve performance. If not overridden, these frequently called methods would execute code paths that are unnecessary for the default tree 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 JavaBeansTM has been added to the java.beans package. Please see XMLEncoder.

Version:
1.60 11/17/05
Author:
Rob Davis, Ray Ryan, Scott Violet
See Also:
Serialized Form

  • Nested Class Summary

    Nested classes/interfaces inherited from class javax.swing.JLabel

    javax.swing.JLabel.AccessibleJLabel

    Nested classes/interfaces inherited from class javax.swing.JComponent

    javax.swing.JComponent.AccessibleJComponent

    Nested classes/interfaces inherited from class java.awt.Container

    java.awt.Container.AccessibleAWTContainer

    Nested classes/interfaces inherited from class java.awt.Component

    java.awt.Component.AccessibleAWTComponent, java.awt.Component.BaselineResizeBehavior, java.awt.Component.BltBufferStrategy, java.awt.Component.FlipBufferStrategy

  • Field Summary

    Fields
    Modifier and Type Field Description
    protected java.awt.Color backgroundNonSelectionColor
    Color to use for the background when the node isn't selected.
    protected java.awt.Color backgroundSelectionColor
    Color to use for the background when a node is selected.
    protected java.awt.Color borderSelectionColor
    Color to use for the focus indicator when the node has focus.
    protected javax.swing.Icon closedIcon
    Icon used to show non-leaf nodes that aren't expanded.
    protected boolean drawsFocusBorderAroundIcon
    True if draws focus border around icon as well.
    protected boolean hasFocus
    True if has focus.
    protected boolean isDropCell  
    protected javax.swing.Icon leafIcon
    Icon used to show leaf nodes.
    protected javax.swing.Icon openIcon
    Icon used to show non-leaf nodes that are expanded.
    protected boolean selected
    Is the value currently selected.
    protected java.awt.Color textNonSelectionColor
    Color to use for the foreground for non-selected nodes.
    protected java.awt.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

    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

    accessibleContext, BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT

    Fields inherited from interface java.awt.image.ImageObserver

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

    Fields inherited from 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

    Constructors
    Constructor Description
    NonPrivateDefaultTreeCellRenderer()
    Returns a new instance of DefaultTreeCellRenderer.

  • Method Summary

    Modifier and Type Method Description
    void firePropertyChange​(java.lang.String propertyName, boolean oldValue, boolean newValue)
    Overridden for performance reasons.
    void firePropertyChange​(java.lang.String propertyName, byte oldValue, byte newValue)
    Overridden for performance reasons.
    void firePropertyChange​(java.lang.String propertyName, char oldValue, char newValue)
    Overridden for performance reasons.
    void firePropertyChange​(java.lang.String propertyName, double oldValue, double newValue)
    Overridden for performance reasons.
    void firePropertyChange​(java.lang.String propertyName, float oldValue, float newValue)
    Overridden for performance reasons.
    void firePropertyChange​(java.lang.String propertyName, int oldValue, int newValue)
    Overridden for performance reasons.
    void firePropertyChange​(java.lang.String propertyName, long oldValue, long newValue)
    Overridden for performance reasons.
    void firePropertyChange​(java.lang.String propertyName, short oldValue, short newValue)
    Overridden for performance reasons.
    protected void firePropertyChange​(java.lang.String propertyName, java.lang.Object oldValue, java.lang.Object newValue)
    Overridden for performance reasons.
    java.awt.Color getBackgroundNonSelectionColor()
    Returns the background color to be used for non selected nodes.
    java.awt.Color getBackgroundSelectionColor()
    Returns the color to use for the background if node is selected.
    java.awt.Color getBorderSelectionColor()
    Returns the color the border is drawn.
    javax.swing.Icon getClosedIcon()
    Returns the icon used to represent non-leaf nodes that are not expanded.
    javax.swing.Icon getDefaultClosedIcon()
    Returns the default icon, for the current laf, that is used to represent non-leaf nodes that are not expanded.
    javax.swing.Icon getDefaultLeafIcon()
    Returns the default icon, for the current laf, that is used to represent leaf nodes.
    javax.swing.Icon getDefaultOpenIcon()
    Returns the default icon, for the current laf, that is used to represent non-leaf nodes that are expanded.
    java.awt.Font getFont()
    Gets the font of this component.
    javax.swing.Icon getLeafIcon()
    Returns the icon used to represent leaf nodes.
    javax.swing.Icon getOpenIcon()
    Returns the icon used to represent non-leaf nodes that are expanded.
    java.awt.Dimension getPreferredSize()
    Overrides JComponent.getPreferredSize to return slightly wider preferred size value.
    java.awt.Color getTextNonSelectionColor()
    Returns the color the text is drawn with when the node isn't selected.
    java.awt.Color getTextSelectionColor()
    Returns the color the text is drawn with when the node is selected.
    java.awt.Component getTreeCellRendererComponent​(javax.swing.JTree tree, java.lang.Object value, boolean sel, boolean expanded, boolean leaf, int row, boolean hasFocus)
    Configures the renderer based on the passed in components.
    void invalidate()
    Overridden for performance reasons.
    void paint​(java.awt.Graphics g)
    Paints the value.
    protected void paintFocus​(java.awt.Graphics g, int x, int y, int w, int h, java.awt.Color notColor)  
    void repaint()
    Overridden for performance reasons.
    void repaint​(long tm, int x, int y, int width, int height)
    Overridden for performance reasons.
    void repaint​(java.awt.Rectangle r)
    Overridden for performance reasons.
    void revalidate()
    Overridden for performance reasons.
    void setBackground​(java.awt.Color color)
    Subclassed to map ColorUIResources to null.
    void setBackgroundNonSelectionColor​(java.awt.Color newColor)
    Sets the background color to be used for non selected nodes.
    void setBackgroundSelectionColor​(java.awt.Color newColor)
    Sets the color to use for the background if node is selected.
    void setBorderSelectionColor​(java.awt.Color newColor)
    Sets the color to use for the border.
    void setClosedIcon​(javax.swing.Icon newIcon)
    Sets the icon used to represent non-leaf nodes that are not expanded.
    void setFont​(java.awt.Font font)
    Subclassed to map FontUIResources to null.
    void setLeafIcon​(javax.swing.Icon newIcon)
    Sets the icon used to represent leaf nodes.
    void setOpenIcon​(javax.swing.Icon newIcon)
    Sets the icon used to represent non-leaf nodes that are expanded.
    void setTextNonSelectionColor​(java.awt.Color newColor)
    Sets the color the text is drawn with when the node isn't selected.
    void setTextSelectionColor​(java.awt.Color newColor)
    Sets the color the text is drawn with when the node is selected.
    void validate()
    Overridden for performance reasons.

    Methods inherited from 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, updateUI

    Methods inherited from 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, 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 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, validateTree

    Methods inherited from 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, 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 java.lang.Object

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

  • Field Details

    • selected

      protected boolean selected
      Is the value currently selected.

    • hasFocus

      protected boolean hasFocus
      True if has focus.

    • drawsFocusBorderAroundIcon

      protected boolean drawsFocusBorderAroundIcon
      True if draws focus border around icon as well.

    • closedIcon

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

    • leafIcon

      protected transient javax.swing.Icon leafIcon
      Icon used to show leaf nodes.

    • openIcon

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

    • textSelectionColor

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

    • textNonSelectionColor

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

    • backgroundSelectionColor

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

    • backgroundNonSelectionColor

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

    • borderSelectionColor

      protected java.awt.Color borderSelectionColor
      Color to use for the focus indicator when the node has focus.

    • isDropCell

      protected boolean isDropCell

  • Constructor Details

    • NonPrivateDefaultTreeCellRenderer

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

  • Method Details

    • getDefaultOpenIcon

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

    • getDefaultClosedIcon

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

    • getDefaultLeafIcon

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

    • setOpenIcon

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

    • getOpenIcon

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

    • setClosedIcon

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

    • getClosedIcon

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

    • setLeafIcon

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

    • getLeafIcon

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

    • setTextSelectionColor

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

    • getTextSelectionColor

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

    • setTextNonSelectionColor

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

    • getTextNonSelectionColor

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

    • setBackgroundSelectionColor

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

    • getBackgroundSelectionColor

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

    • setBackgroundNonSelectionColor

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

    • getBackgroundNonSelectionColor

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

    • setBorderSelectionColor

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

    • getBorderSelectionColor

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

    • setFont

      public void setFont​(java.awt.Font font)
      Subclassed to map FontUIResources to null. If font is null, or a FontUIResource, this has the effect of letting the font of the JTree show through. On the other hand, if font is non-null, and not a FontUIResource, the font becomes font.
      Overrides:
      setFont in class javax.swing.JComponent

    • getFont

      public java.awt.Font getFont()
      Gets the font of this component.
      Specified by:
      getFont in interface java.awt.MenuContainer
      Overrides:
      getFont in class java.awt.Component
      Returns:
      this component's font; if a font has not been set for this component, the font of its parent is returned

    • setBackground

      public void setBackground​(java.awt.Color color)
      Subclassed to map ColorUIResources to null. If color is null, or a ColorUIResource, this has the effect of letting the background color of the JTree show through. On the other hand, if color is non-null, and not a ColorUIResource, the background becomes color.
      Overrides:
      setBackground in class javax.swing.JComponent

    • getTreeCellRendererComponent

      public java.awt.Component getTreeCellRendererComponent​(javax.swing.JTree tree, java.lang.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 the tree with convertValueToText, which ultimately invokes toString on value. The foreground color is set based on the selection and the icon is set based on the leaf and expanded parameters.
      Specified by:
      getTreeCellRendererComponent in interface javax.swing.tree.TreeCellRenderer

    • paint

      public void paint​(java.awt.Graphics g)
      Paints the value. The background is filled based on selected.
      Overrides:
      paint in class javax.swing.JComponent

    • paintFocus

      protected void paintFocus​(java.awt.Graphics g, int x, int y, int w, int h, java.awt.Color notColor)

    • getPreferredSize

      public java.awt.Dimension getPreferredSize()
      Overrides JComponent.getPreferredSize to return slightly wider preferred size value.
      Overrides:
      getPreferredSize in class javax.swing.JComponent

    • validate

      public void validate()
      Overridden for performance reasons. See the Implementation Note for more information.
      Overrides:
      validate in class java.awt.Container

    • invalidate

      public void invalidate()
      Overridden for performance reasons. See the Implementation Note for more information.
      Overrides:
      invalidate in class java.awt.Container
      Since:
      1.5

    • revalidate

      public void revalidate()
      Overridden for performance reasons. See the Implementation Note for more information.
      Overrides:
      revalidate in class javax.swing.JComponent

    • 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:
      repaint in class javax.swing.JComponent

    • repaint

      public void repaint​(java.awt.Rectangle r)
      Overridden for performance reasons. See the Implementation Note for more information.
      Overrides:
      repaint in class javax.swing.JComponent

    • repaint

      public void repaint()
      Overridden for performance reasons. See the Implementation Note for more information.
      Overrides:
      repaint in class java.awt.Component
      Since:
      1.5

    • firePropertyChange

      protected void firePropertyChange​(java.lang.String propertyName, java.lang.Object oldValue, java.lang.Object newValue)
      Overridden for performance reasons. See the Implementation Note for more information.
      Overrides:
      firePropertyChange in class java.awt.Component

    • firePropertyChange

      public void firePropertyChange​(java.lang.String propertyName, byte oldValue, byte newValue)
      Overridden for performance reasons. See the Implementation Note for more information.
      Overrides:
      firePropertyChange in class java.awt.Component

    • firePropertyChange

      public void firePropertyChange​(java.lang.String propertyName, char oldValue, char newValue)
      Overridden for performance reasons. See the Implementation Note for more information.
      Overrides:
      firePropertyChange in class javax.swing.JComponent

    • firePropertyChange

      public void firePropertyChange​(java.lang.String propertyName, short oldValue, short newValue)
      Overridden for performance reasons. See the Implementation Note for more information.
      Overrides:
      firePropertyChange in class java.awt.Component

    • firePropertyChange

      public void firePropertyChange​(java.lang.String propertyName, int oldValue, int newValue)
      Overridden for performance reasons. See the Implementation Note for more information.
      Overrides:
      firePropertyChange in class javax.swing.JComponent

    • firePropertyChange

      public void firePropertyChange​(java.lang.String propertyName, long oldValue, long newValue)
      Overridden for performance reasons. See the Implementation Note for more information.
      Overrides:
      firePropertyChange in class java.awt.Component

    • firePropertyChange

      public void firePropertyChange​(java.lang.String propertyName, float oldValue, float newValue)
      Overridden for performance reasons. See the Implementation Note for more information.
      Overrides:
      firePropertyChange in class java.awt.Component

    • firePropertyChange

      public void firePropertyChange​(java.lang.String propertyName, double oldValue, double newValue)
      Overridden for performance reasons. See the Implementation Note for more information.
      Overrides:
      firePropertyChange in class java.awt.Component

    • firePropertyChange

      public void firePropertyChange​(java.lang.String propertyName, boolean oldValue, boolean newValue)
      Overridden for performance reasons. See the Implementation Note for more information.
      Overrides:
      firePropertyChange in class javax.swing.JComponent