Class GradientPanel
- 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.JPanel
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- org.pushingpixels.radiance.theming.extras.internal.contrib.blogofbug.swing.components.GradientPanel
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- All Implemented Interfaces:
java.awt.event.ComponentListener
,java.awt.image.ImageObserver
,java.awt.MenuContainer
,java.io.Serializable
,java.util.EventListener
,javax.accessibility.Accessible
- Direct Known Subclasses:
JCarosel
,JCarouselMenu
public class GradientPanel extends javax.swing.JPanel implements java.awt.event.ComponentListener
Container that draws (in an optimized way) a gradient in the background- See Also:
- Serialized Form
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Nested Class Summary
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Nested classes/interfaces inherited from class javax.swing.JPanel
javax.swing.JPanel.AccessibleJPanel
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Nested classes/interfaces inherited from class javax.swing.JComponent
javax.swing.JComponent.AccessibleJComponent
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Field Summary
Fields Modifier and Type Field Description protected java.awt.image.BufferedImage
cache
A pre-rendered gradient in an imageprotected java.awt.Color
end
Gradient end colorprotected java.awt.GradientPaint
gp
Gradient painterprotected java.awt.Color
start
Gradient start colour-
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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Constructor Summary
Constructors Constructor Description GradientPanel()
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description void
componentHidden(java.awt.event.ComponentEvent componentEvent)
Not used *void
componentMoved(java.awt.event.ComponentEvent componentEvent)
Not used *void
componentResized(java.awt.event.ComponentEvent componentEvent)
Recalculates the gradient when it's resizedvoid
componentShown(java.awt.event.ComponentEvent componentEvent)
Ignoredprivate void
makeGradient()
Pre-renders the gradientvoid
paintComponent(java.awt.Graphics graphics)
paints the gradient.void
setBackground(java.awt.Color color)
Set the background to a single colorvoid
setBackground(java.awt.Color start, java.awt.Color end)
Sets two background colors for a gradient-
Methods inherited from class javax.swing.JPanel
getAccessibleContext, getUI, getUIClassID, paramString, setUI, updateUI
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Methods inherited from class javax.swing.JComponent
addAncestorListener, addNotify, addVetoableChangeListener, computeVisibleRect, contains, createToolTip, disable, enable, firePropertyChange, 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, isOpaque, 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, repaint, repaint, requestDefaultFocus, requestFocus, requestFocus, requestFocusInWindow, requestFocusInWindow, resetKeyboardActions, reshape, revalidate, scrollRectToVisible, setActionMap, setAlignmentX, setAlignmentY, setAutoscrolls, 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
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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, invalidate, 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, validate, 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, 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, imageUpdate, 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, 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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Method Detail
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setBackground
public void setBackground(java.awt.Color color)
Set the background to a single color- Overrides:
setBackground
in classjavax.swing.JComponent
- Parameters:
color
- The color for a solid background
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setBackground
public void setBackground(java.awt.Color start, java.awt.Color end)
Sets two background colors for a gradient- Parameters:
start
- Top (first) colorend
- Bottom (final) color
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paintComponent
public void paintComponent(java.awt.Graphics graphics)
paints the gradient.- Overrides:
paintComponent
in classjavax.swing.JComponent
- Parameters:
graphics
- The graphics context
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makeGradient
private void makeGradient()
Pre-renders the gradient
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componentResized
public void componentResized(java.awt.event.ComponentEvent componentEvent)
Recalculates the gradient when it's resized- Specified by:
componentResized
in interfacejava.awt.event.ComponentListener
- Parameters:
componentEvent
- The event object
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componentShown
public void componentShown(java.awt.event.ComponentEvent componentEvent)
Ignored- Specified by:
componentShown
in interfacejava.awt.event.ComponentListener
- Parameters:
componentEvent
- The component event
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componentMoved
public void componentMoved(java.awt.event.ComponentEvent componentEvent)
Not used *- Specified by:
componentMoved
in interfacejava.awt.event.ComponentListener
- Parameters:
componentEvent
- The event
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componentHidden
public void componentHidden(java.awt.event.ComponentEvent componentEvent)
Not used *- Specified by:
componentHidden
in interfacejava.awt.event.ComponentListener
- Parameters:
componentEvent
- The event
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