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com.cosylab.gui.components
Class GradientLabel

java.lang.Object
  java.awt.Component
      java.awt.Container
          javax.swing.JComponent
              javax.swing.JLabel
                  com.cosylab.gui.components.ResizableTextLabel
                      com.cosylab.gui.components.GradientLabel

All Implemented Interfaces:

java.awt.image.ImageObserver, java.awt.MenuContainer, java.io.Serializable, javax.accessibility.Accessible, javax.swing.SwingConstants

Direct Known Subclasses:

SimpleButton

public class GradientLabel
extends ResizableTextLabel

A label that paints a gradient as a background. User can specify gradient colors (one of them is the default label background) and direction (the default is from the upper left to the upper right corner) relative to the label's proportions.

Version:

$id$

Author:

Miha Kadunc

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class com.cosylab.gui.components.ResizableTextLabel

ResizableTextLabel.ResizableAdapter

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 inherited from class javax.swing.JLabel

labelFor

Fields inherited from class javax.swing.JComponent

accessibleContext, 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

BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT

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

Fields inherited from interface java.awt.image.ImageObserver

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

Constructor Summary

GradientLabel()
Constructs an empty GradientLabel

GradientLabel(javax.swing.Icon image)
Constructs a GradientLabel with the specified icon.

GradientLabel(javax.swing.Icon image, int horizontalAlignment)
Constructor for GradientLabel.

GradientLabel(java.lang.String text)
Constructs a GradientLabel with the specified text.

GradientLabel(java.lang.String text, javax.swing.Icon icon, int horizontalAlignment)
Constructor for GradientLabel.

GradientLabel(java.lang.String text, int horizontalAlignment)
Constructor for GradientLabel.

Method Summary

java.awt.Color	getBackgroundStart() Returns the backgroundStart, this is the color that is used for the start of label's gradient.
boolean	isGradientEnabled() Returns whether the gradient background is enabled.
static void	main(java.lang.String[] args)
protected void	paintComponent(java.awt.Graphics g) This method hes been overriden to implement the feature of enhanced anti-aliasing paint of the label.
void	setBackground(java.awt.Color c) Sets the background color.
void	setBackgroundStart(java.awt.Color newBackgroundStart) Sets the backgroundStart color.
void	setGradientEnabled(boolean gradientEnabled) Sets the gradientEnabled property.
void	setGradientPoints(double startX, double startY, double endX, double endY) Sets the start and end point of the label's gradient, relative to the label's size.

Methods inherited from class com.cosylab.gui.components.ResizableTextLabel

addNotify, adjustSizeToFont, getColumns, getMaximumFontSize, getMinimumFontSize, getMinimumSize, getPreferredSize, isEnhanced, isResizable, resize, setColumns, setEnhanced, setMaximumFontSize, setMinimumFontSize, setMinimumSize, setPreferredSize, setResizable, setText

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, setUI, setVerticalAlignment, setVerticalTextPosition, updateUI

Methods inherited from class javax.swing.JComponent

addAncestorListener, 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, getNextFocusableComponent, getPopupLocation, getRegisteredKeyStrokes, getRootPane, getSize, getToolTipLocation, getToolTipText, getToolTipText, getTopLevelAncestor, getTransferHandler, getVerifyInputWhenFocusTarget, getVetoableChangeListeners, getVisibleRect, getWidth, getX, getY, grabFocus, isDoubleBuffered, isLightweightComponent, isManagingFocus, isOpaque, isOptimizedDrawingEnabled, isPaintingForPrint, 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, setNextFocusableComponent, setOpaque, 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, 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, transferFocusBackward, transferFocusDownCycle, validate, 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, 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, hide, 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, resize, resize, setBounds, setBounds, setComponentOrientation, setCursor, setDropTarget, setFocusable, setFocusTraversalKeysEnabled, setIgnoreRepaint, setLocale, setLocation, setLocation, setName, setSize, setSize, show, show, size, toString, transferFocus, transferFocusUpCycle

Methods inherited from class java.lang.Object

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

Constructor Detail

GradientLabel

public GradientLabel()

Constructs an empty GradientLabel

GradientLabel

public GradientLabel(javax.swing.Icon image)

Constructs a GradientLabel with the specified icon.

Parameters:

image -

GradientLabel

public GradientLabel(javax.swing.Icon image,
                     int horizontalAlignment)

Constructor for GradientLabel.

Parameters:

image -

horizontalAlignment -

GradientLabel

public GradientLabel(java.lang.String text)

Constructs a GradientLabel with the specified text.

Parameters:

text -

GradientLabel

public GradientLabel(java.lang.String text,
                     javax.swing.Icon icon,
                     int horizontalAlignment)

Constructor for GradientLabel.

Parameters:

text -

icon -

horizontalAlignment -

GradientLabel

public GradientLabel(java.lang.String text,
                     int horizontalAlignment)

Constructor for GradientLabel.

Parameters:

text -

horizontalAlignment -

Method Detail

getBackgroundStart

public java.awt.Color getBackgroundStart()

Returns the backgroundStart, this is the color that is used for the start of label's gradient. The end color is that of the label's background.

Returns:

Color

isGradientEnabled

public boolean isGradientEnabled()

Returns whether the gradient background is enabled.

Returns:

boolean

paintComponent

protected void paintComponent(java.awt.Graphics g)

Description copied from class: ResizableTextLabel

This method hes been overriden to implement the feature of enhanced anti-aliasing paint of the label.

Overrides:

paintComponent in class ResizableTextLabel

See Also:

JComponent.paintComponent(java.awt.Graphics)

setBackground

public void setBackground(java.awt.Color c)

Sets the background color. This color is used for the gradient's end point.

Overrides:

setBackground in class javax.swing.JComponent

Parameters:

c - The color to be set

See Also:

Component.setBackground(Color), setBackgroundStart(Color)

setBackgroundStart

public void setBackgroundStart(java.awt.Color newBackgroundStart)

Sets the backgroundStart color.

Parameters:

newBackgroundStart - The backgroundStart to set

See Also:

getBackgroundStart()

setGradientEnabled

public void setGradientEnabled(boolean gradientEnabled)

Sets the gradientEnabled property.

Parameters:

gradientEnabled - The gradientEnabled to set

See Also:

isGradientEnabled()

setGradientPoints

public void setGradientPoints(double startX,
                              double startY,
                              double endX,
                              double endY)

Sets the start and end point of the label's gradient, relative to the label's size. Value 0 is the left/top edge of the label. 1 is the right/bottom edge of the label.

Parameters:

startX - the x coordinate of the start of the gradient

startY - the y coordinate of the start of the gradient

endX - the x coordinate of the end of the gradient

endY - the y coordinate of the end of the gradient

main

public static void main(java.lang.String[] args)