Class JRendererLabel
- java.lang.Object
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- java.awt.Component
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- java.awt.Container
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- javax.swing.JComponent
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- javax.swing.JLabel
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- org.jdesktop.swingx.renderer.JRendererLabel
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- All Implemented Interfaces:
ImageObserver
,MenuContainer
,Serializable
,Accessible
,SwingConstants
,PainterAware
public class JRendererLabel extends JLabel implements PainterAware
AJLabel
optimized for usage in renderers and with a minimal background painter support.Note: the painter support will be switched to painter_work as soon it enters main. The reasoning for the performance-overrides is copied from core:
The standard
JLabel
component was not designed to be used this way and we want to avoid triggering arevalidate
each time the cell is drawn. This would greatly decrease performance because therevalidate
message would be passed up the hierarchy of the container to determine whether any other components would be affected. As the renderer is only parented for the lifetime of a painting operation we similarly want to avoid the overhead associated with walking the hierarchy for painting operations. So this class overrides thevalidate
,invalidate
,revalidate
,repaint
, andfirePropertyChange
methods to be no-ops and override theisOpaque
method solely to improve performance. If you write your own renderer component, please keep this performance consideration in mind.- Author:
- Jeanette Winzenburg
- See Also:
- Serialized Form
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Nested Class Summary
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Nested classes/interfaces inherited from class javax.swing.JLabel
JLabel.AccessibleJLabel
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Nested classes/interfaces inherited from class javax.swing.JComponent
JComponent.AccessibleJComponent
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Nested classes/interfaces inherited from class java.awt.Container
Container.AccessibleAWTContainer
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Nested classes/interfaces inherited from class java.awt.Component
Component.AccessibleAWTComponent, Component.BaselineResizeBehavior, Component.BltBufferStrategy, Component.FlipBufferStrategy
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Field Summary
Fields Modifier and Type Field Description protected Painter
painter
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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
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Fields inherited from class java.awt.Component
accessibleContext, BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT
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Fields inherited from interface java.awt.image.ImageObserver
ABORT, ALLBITS, ERROR, FRAMEBITS, HEIGHT, PROPERTIES, SOMEBITS, WIDTH
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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
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Constructor Summary
Constructors Constructor Description JRendererLabel()
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description void
firePropertyChange(String propertyName, boolean oldValue, boolean newValue)
Overridden for performance reasons.protected void
firePropertyChange(String propertyName, Object oldValue, Object newValue)
Overridden for performance reasons.Painter
getPainter()
void
invalidate()
Overridden for performance reasons.boolean
isOpaque()
Overridden for performance reasons.protected void
paintComponent(Graphics g)
protected void
paintComponentWithPainter(Graphics2D g)
PRE: painter != null, isOpaque()void
repaint()
Overridden for performance reasons.void
repaint(long tm, int x, int y, int width, int height)
Overridden for performance reasons.void
repaint(Rectangle r)
Overridden for performance reasons.void
revalidate()
Overridden for performance reasons.void
setPainter(Painter painter)
void
setToolTipText(String text)
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
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Methods inherited from class javax.swing.JComponent
addAncestorListener, addNotify, addVetoableChangeListener, computeVisibleRect, contains, createToolTip, disable, enable, firePropertyChange, firePropertyChange, 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, 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, setTransferHandler, setUI, setVerifyInputWhenFocusTarget, setVisible, unregisterKeyboardAction, update
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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
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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, 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, 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
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Field Detail
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painter
protected Painter painter
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Method Detail
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isOpaque
public boolean isOpaque()
Overridden for performance reasons.PENDING: Think about Painters and opaqueness?
- Overrides:
isOpaque
in classJComponent
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setPainter
public void setPainter(Painter painter)
- Specified by:
setPainter
in interfacePainterAware
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getPainter
public Painter getPainter()
- Specified by:
getPainter
in interfacePainterAware
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paintComponent
protected void paintComponent(Graphics g)
Overridden to inject Painter's painting.
TODO: cleanup logic - see JRendererCheckBox.
- Overrides:
paintComponent
in classJComponent
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paintComponentWithPainter
protected void paintComponentWithPainter(Graphics2D g)
PRE: painter != null, isOpaque()- Parameters:
g
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setToolTipText
public void setToolTipText(String text)
Overridden to not automatically de/register itself from/to the ToolTipManager. As rendering component it is not considered to be active in any way, so the manager must not listen.
- Overrides:
setToolTipText
in classJComponent
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invalidate
public void invalidate()
Overridden for performance reasons. See the Implementation Note for more information.- Overrides:
invalidate
in classContainer
- Since:
- 1.5
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validate
public void validate()
Overridden for performance reasons. See the Implementation Note for more information.
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revalidate
public void revalidate()
Overridden for performance reasons. See the Implementation Note for more information.- Overrides:
revalidate
in classJComponent
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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 classJComponent
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repaint
public void repaint(Rectangle r)
Overridden for performance reasons. See the Implementation Note for more information.- Overrides:
repaint
in classJComponent
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repaint
public void repaint()
Overridden for performance reasons. See the Implementation Note for more information.
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firePropertyChange
protected void firePropertyChange(String propertyName, Object oldValue, Object newValue)
Overridden for performance reasons. See the Implementation Note for more information.- Overrides:
firePropertyChange
in classComponent
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firePropertyChange
public void firePropertyChange(String propertyName, boolean oldValue, boolean newValue)
Overridden for performance reasons. See the Implementation Note for more information.- Overrides:
firePropertyChange
in classJComponent
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