- 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.AbstractButton
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- All Implemented Interfaces:
- ImageObserver, ItemSelectable, MenuContainer, Serializable, SwingConstants
- Direct Known Subclasses:
- JButton, JMenuItem, JToggleButton
public abstract class AbstractButton extends JComponent implements ItemSelectable, SwingConstants
Defines common behaviors for buttons and menu items.Buttons can be configured, and to some degree controlled, by
Action
s. Using anAction
with a button has many benefits beyond directly configuring a button. Refer to Swing Components SupportingAction
for more details, and you can find more information in How to Use Actions, a section in The Java Tutorial.For further information see How to Use Buttons, Check Boxes, and Radio Buttons, a section in The Java Tutorial.
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 seeXMLEncoder
.
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Nested Class Summary
Nested Classes Modifier and Type Class and Description protected class
AbstractButton.AccessibleAbstractButton
This class implements accessibility support for theAbstractButton
class.protected class
AbstractButton.ButtonChangeListener
ExtendsChangeListener
to be serializable.-
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 and Description protected ActionListener
actionListener
The button model'sActionListener
.static String
BORDER_PAINTED_CHANGED_PROPERTY
Identifies a change to having the border drawn, or having it not drawn.protected ChangeEvent
changeEvent
Only oneChangeEvent
is needed per button instance since the event's only state is the source property.protected ChangeListener
changeListener
The button model'schangeListener
.static String
CONTENT_AREA_FILLED_CHANGED_PROPERTY
Identifies a change to having the button paint the content area.static String
DISABLED_ICON_CHANGED_PROPERTY
Identifies a change to the icon used when the button has been disabled.static String
DISABLED_SELECTED_ICON_CHANGED_PROPERTY
Identifies a change to the icon used when the button has been disabled and selected.static String
FOCUS_PAINTED_CHANGED_PROPERTY
Identifies a change to having the border highlighted when focused, or not.static String
HORIZONTAL_ALIGNMENT_CHANGED_PROPERTY
Identifies a change in the button's horizontal alignment.static String
HORIZONTAL_TEXT_POSITION_CHANGED_PROPERTY
Identifies a change in the button's horizontal text position.static String
ICON_CHANGED_PROPERTY
Identifies a change to the icon that represents the button.protected ItemListener
itemListener
The button model'sItemListener
.static String
MARGIN_CHANGED_PROPERTY
Identifies a change in the button's margins.static String
MNEMONIC_CHANGED_PROPERTY
Identifies a change to the button's mnemonic.protected ButtonModel
model
The data model that determines the button's state.static String
MODEL_CHANGED_PROPERTY
Identifies a change in the button model.static String
PRESSED_ICON_CHANGED_PROPERTY
Identifies a change to the icon used when the button has been pressed.static String
ROLLOVER_ENABLED_CHANGED_PROPERTY
Identifies a change from rollover enabled to disabled or back to enabled.static String
ROLLOVER_ICON_CHANGED_PROPERTY
Identifies a change to the icon used when the cursor is over the button.static String
ROLLOVER_SELECTED_ICON_CHANGED_PROPERTY
Identifies a change to the icon used when the cursor is over the button and it has been selected.static String
SELECTED_ICON_CHANGED_PROPERTY
Identifies a change to the icon used when the button has been selected.static String
TEXT_CHANGED_PROPERTY
Identifies a change in the button's text.static String
VERTICAL_ALIGNMENT_CHANGED_PROPERTY
Identifies a change in the button's vertical alignment.static String
VERTICAL_TEXT_POSITION_CHANGED_PROPERTY
Identifies a change in the button's vertical text position.-
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
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Fields inherited from class java.awt.Component
BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT
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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 and Description AbstractButton()
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Method Summary
Methods Modifier and Type Method and Description protected void
actionPropertyChanged(Action action, String propertyName)
Updates the button's state in response to property changes in the associated action.void
addActionListener(ActionListener l)
Adds anActionListener
to the button.void
addChangeListener(ChangeListener l)
Adds aChangeListener
to the button.protected void
addImpl(Component comp, Object constraints, int index)
Adds the specified component to this container at the specified index, refer toContainer.addImpl(Component, Object, int)
for a complete description of this method.void
addItemListener(ItemListener l)
Adds anItemListener
to thecheckbox
.protected int
checkHorizontalKey(int key, String exception)
Verify that thekey
argument is a legal value for thehorizontalAlignment
andhorizontalTextPosition
properties.protected int
checkVerticalKey(int key, String exception)
Verify that thekey
argument is a legal value for the vertical properties.protected void
configurePropertiesFromAction(Action a)
Sets the properties on this button to match those in the specifiedAction
.protected ActionListener
createActionListener()
protected PropertyChangeListener
createActionPropertyChangeListener(Action a)
Creates and returns aPropertyChangeListener
that is responsible for listening for changes from the specifiedAction
and updating the appropriate properties.protected ChangeListener
createChangeListener()
Subclasses that want to handleChangeEvents
differently can override this to return anotherChangeListener
implementation.protected ItemListener
createItemListener()
void
doClick()
Programmatically perform a "click".void
doClick(int pressTime)
Programmatically perform a "click".protected void
fireActionPerformed(ActionEvent event)
Notifies all listeners that have registered interest for notification on this event type.protected void
fireItemStateChanged(ItemEvent event)
Notifies all listeners that have registered interest for notification on this event type.protected void
fireStateChanged()
Notifies all listeners that have registered interest for notification on this event type.Action
getAction()
Returns the currently setAction
for thisActionEvent
source, ornull
if noAction
is set.String
getActionCommand()
Returns the action command for this button.ActionListener[]
getActionListeners()
Returns an array of all theActionListener
s added to this AbstractButton with addActionListener().ChangeListener[]
getChangeListeners()
Returns an array of all theChangeListener
s added to this AbstractButton with addChangeListener().Icon
getDisabledIcon()
Returns the icon used by the button when it's disabled.Icon
getDisabledSelectedIcon()
Returns the icon used by the button when it's disabled and selected.int
getDisplayedMnemonicIndex()
Returns the character, as an index, that the look and feel should provide decoration for as representing the mnemonic character.boolean
getHideActionText()
Returns the value of thehideActionText
property, which determines whether the button displays text from theAction
.int
getHorizontalAlignment()
Returns the horizontal alignment of the icon and text.int
getHorizontalTextPosition()
Returns the horizontal position of the text relative to the icon.Icon
getIcon()
Returns the default icon.int
getIconTextGap()
Returns the amount of space between the text and the icon displayed in this button.ItemListener[]
getItemListeners()
Returns an array of all theItemListener
s added to this AbstractButton with addItemListener().String
getLabel()
Deprecated.- Replaced bygetText
Insets
getMargin()
Returns the margin between the button's border and the label.int
getMnemonic()
Returns the keyboard mnemonic from the the current model.ButtonModel
getModel()
Returns the model that this button represents.long
getMultiClickThreshhold()
Gets the amount of time (in milliseconds) required between mouse press events for the button to generate the corresponding action events.Icon
getPressedIcon()
Returns the pressed icon for the button.Icon
getRolloverIcon()
Returns the rollover icon for the button.Icon
getRolloverSelectedIcon()
Returns the rollover selection icon for the button.Icon
getSelectedIcon()
Returns the selected icon for the button.Object[]
getSelectedObjects()
Returns an array (length 1) containing the label ornull
if the button is not selected.String
getText()
Returns the button's text.ButtonUI
getUI()
Returns the L&F object that renders this component.int
getVerticalAlignment()
Returns the vertical alignment of the text and icon.int
getVerticalTextPosition()
Returns the vertical position of the text relative to the icon.boolean
imageUpdate(Image img, int infoflags, int x, int y, int w, int h)
This is overridden to return false if the currentIcon
'sImage
is not equal to the passed inImage
img
.protected void
init(String text, Icon icon)
boolean
isBorderPainted()
Gets theborderPainted
property.boolean
isContentAreaFilled()
Gets thecontentAreaFilled
property.boolean
isFocusPainted()
Gets thepaintFocus
property.boolean
isRolloverEnabled()
Gets therolloverEnabled
property.boolean
isSelected()
Returns the state of the button.protected void
paintBorder(Graphics g)
Paint the button's border ifBorderPainted
property is true and the button has a border.protected String
paramString()
Returns a string representation of thisAbstractButton
.void
removeActionListener(ActionListener l)
Removes anActionListener
from the button.void
removeChangeListener(ChangeListener l)
Removes a ChangeListener from the button.void
removeItemListener(ItemListener l)
Removes anItemListener
from the button.void
removeNotify()
Notifies this component that it no longer has a parent component.void
setAction(Action a)
Sets theAction
.void
setActionCommand(String actionCommand)
Sets the action command for this button.void
setBorderPainted(boolean b)
Sets theborderPainted
property.void
setContentAreaFilled(boolean b)
Sets thecontentAreaFilled
property.void
setDisabledIcon(Icon disabledIcon)
Sets the disabled icon for the button.void
setDisabledSelectedIcon(Icon disabledSelectedIcon)
Sets the disabled selection icon for the button.void
setDisplayedMnemonicIndex(int index)
Provides a hint to the look and feel as to which character in the text should be decorated to represent the mnemonic.void
setEnabled(boolean b)
Enables (or disables) the button.void
setFocusPainted(boolean b)
Sets thepaintFocus
property, which must betrue
for the focus state to be painted.void
setHideActionText(boolean hideActionText)
Sets thehideActionText
property, which determines whether the button displays text from theAction
.void
setHorizontalAlignment(int alignment)
Sets the horizontal alignment of the icon and text.void
setHorizontalTextPosition(int textPosition)
Sets the horizontal position of the text relative to the icon.void
setIcon(Icon defaultIcon)
Sets the button's default icon.void
setIconTextGap(int iconTextGap)
If both the icon and text properties are set, this property defines the space between them.void
setLabel(String label)
Deprecated.- Replaced bysetText(text)
void
setLayout(LayoutManager mgr)
Sets the layout manager for this container, refer toContainer.setLayout(LayoutManager)
for a complete description of this method.void
setMargin(Insets m)
Sets space for margin between the button's border and the label.void
setMnemonic(char mnemonic)
This method is now obsolete, please usesetMnemonic(int)
to set the mnemonic for a button.void
setMnemonic(int mnemonic)
Sets the keyboard mnemonic on the current model.void
setModel(ButtonModel newModel)
Sets the model that this button represents.void
setMultiClickThreshhold(long threshhold)
Sets the amount of time (in milliseconds) required between mouse press events for the button to generate the corresponding action events.void
setPressedIcon(Icon pressedIcon)
Sets the pressed icon for the button.void
setRolloverEnabled(boolean b)
Sets therolloverEnabled
property, which must betrue
for rollover effects to occur.void
setRolloverIcon(Icon rolloverIcon)
Sets the rollover icon for the button.void
setRolloverSelectedIcon(Icon rolloverSelectedIcon)
Sets the rollover selected icon for the button.void
setSelected(boolean b)
Sets the state of the button.void
setSelectedIcon(Icon selectedIcon)
Sets the selected icon for the button.void
setText(String text)
Sets the button's text.void
setUI(ButtonUI ui)
Sets the L&F object that renders this component.void
setVerticalAlignment(int alignment)
Sets the vertical alignment of the icon and text.void
setVerticalTextPosition(int textPosition)
Sets the vertical position of the text relative to the icon.void
updateUI()
Resets the UI property to a value from the current look and feel.-
Methods inherited from class javax.swing.JComponent
addAncestorListener, addNotify, addVetoableChangeListener, computeVisibleRect, contains, createToolTip, disable, enable, firePropertyChange, firePropertyChange, firePropertyChange, fireVetoableChange, getAccessibleContext, 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, getUIClassID, getVerifyInputWhenFocusTarget, getVetoableChangeListeners, getVisibleRect, getWidth, getX, getY, grabFocus, hide, isDoubleBuffered, isLightweightComponent, isManagingFocus, isOpaque, isOptimizedDrawingEnabled, isPaintingForPrint, isPaintingOrigin, isPaintingTile, isRequestFocusEnabled, isValidateRoot, paint, paintChildren, paintComponent, paintImmediately, paintImmediately, print, printAll, printBorder, printChildren, printComponent, processComponentKeyEvent, processKeyBinding, processKeyEvent, processMouseEvent, processMouseMotionEvent, putClientProperty, registerKeyboardAction, registerKeyboardAction, removeAncestorListener, removeVetoableChangeListener, repaint, repaint, requestDefaultFocus, requestFocus, requestFocus, requestFocusInWindow, requestFocusInWindow, resetKeyboardActions, reshape, revalidate, scrollRectToVisible, setActionMap, setAlignmentX, setAlignmentY, setAutoscrolls, setBackground, setBorder, setComponentPopupMenu, setDebugGraphicsOptions, setDefaultLocale, setDoubleBuffered, 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, 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, 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, getPeer, 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, repaint, resize, resize, setBounds, setBounds, setComponentOrientation, setCursor, setDropTarget, setFocusable, setFocusTraversalKeysEnabled, setIgnoreRepaint, setLocale, setLocation, setLocation, setName, setSize, setSize, show, show, size, toString, transferFocus, transferFocusBackward, transferFocusUpCycle
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Field Detail
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MODEL_CHANGED_PROPERTY
public static final String MODEL_CHANGED_PROPERTY
Identifies a change in the button model.- See Also:
- Constant Field Values
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TEXT_CHANGED_PROPERTY
public static final String TEXT_CHANGED_PROPERTY
Identifies a change in the button's text.- See Also:
- Constant Field Values
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MNEMONIC_CHANGED_PROPERTY
public static final String MNEMONIC_CHANGED_PROPERTY
Identifies a change to the button's mnemonic.- See Also:
- Constant Field Values
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MARGIN_CHANGED_PROPERTY
public static final String MARGIN_CHANGED_PROPERTY
Identifies a change in the button's margins.- See Also:
- Constant Field Values
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VERTICAL_ALIGNMENT_CHANGED_PROPERTY
public static final String VERTICAL_ALIGNMENT_CHANGED_PROPERTY
Identifies a change in the button's vertical alignment.- See Also:
- Constant Field Values
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HORIZONTAL_ALIGNMENT_CHANGED_PROPERTY
public static final String HORIZONTAL_ALIGNMENT_CHANGED_PROPERTY
Identifies a change in the button's horizontal alignment.- See Also:
- Constant Field Values
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VERTICAL_TEXT_POSITION_CHANGED_PROPERTY
public static final String VERTICAL_TEXT_POSITION_CHANGED_PROPERTY
Identifies a change in the button's vertical text position.- See Also:
- Constant Field Values
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HORIZONTAL_TEXT_POSITION_CHANGED_PROPERTY
public static final String HORIZONTAL_TEXT_POSITION_CHANGED_PROPERTY
Identifies a change in the button's horizontal text position.- See Also:
- Constant Field Values
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BORDER_PAINTED_CHANGED_PROPERTY
public static final String BORDER_PAINTED_CHANGED_PROPERTY
Identifies a change to having the border drawn, or having it not drawn.- See Also:
- Constant Field Values
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FOCUS_PAINTED_CHANGED_PROPERTY
public static final String FOCUS_PAINTED_CHANGED_PROPERTY
Identifies a change to having the border highlighted when focused, or not.- See Also:
- Constant Field Values
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ROLLOVER_ENABLED_CHANGED_PROPERTY
public static final String ROLLOVER_ENABLED_CHANGED_PROPERTY
Identifies a change from rollover enabled to disabled or back to enabled.- See Also:
- Constant Field Values
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CONTENT_AREA_FILLED_CHANGED_PROPERTY
public static final String CONTENT_AREA_FILLED_CHANGED_PROPERTY
Identifies a change to having the button paint the content area.- See Also:
- Constant Field Values
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ICON_CHANGED_PROPERTY
public static final String ICON_CHANGED_PROPERTY
Identifies a change to the icon that represents the button.- See Also:
- Constant Field Values
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PRESSED_ICON_CHANGED_PROPERTY
public static final String PRESSED_ICON_CHANGED_PROPERTY
Identifies a change to the icon used when the button has been pressed.- See Also:
- Constant Field Values
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SELECTED_ICON_CHANGED_PROPERTY
public static final String SELECTED_ICON_CHANGED_PROPERTY
Identifies a change to the icon used when the button has been selected.- See Also:
- Constant Field Values
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ROLLOVER_ICON_CHANGED_PROPERTY
public static final String ROLLOVER_ICON_CHANGED_PROPERTY
Identifies a change to the icon used when the cursor is over the button.- See Also:
- Constant Field Values
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ROLLOVER_SELECTED_ICON_CHANGED_PROPERTY
public static final String ROLLOVER_SELECTED_ICON_CHANGED_PROPERTY
Identifies a change to the icon used when the cursor is over the button and it has been selected.- See Also:
- Constant Field Values
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DISABLED_ICON_CHANGED_PROPERTY
public static final String DISABLED_ICON_CHANGED_PROPERTY
Identifies a change to the icon used when the button has been disabled.- See Also:
- Constant Field Values
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DISABLED_SELECTED_ICON_CHANGED_PROPERTY
public static final String DISABLED_SELECTED_ICON_CHANGED_PROPERTY
Identifies a change to the icon used when the button has been disabled and selected.- See Also:
- Constant Field Values
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model
protected ButtonModel model
The data model that determines the button's state.
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changeListener
protected ChangeListener changeListener
The button model'schangeListener
.
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actionListener
protected ActionListener actionListener
The button model'sActionListener
.
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itemListener
protected ItemListener itemListener
The button model'sItemListener
.
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changeEvent
protected transient ChangeEvent changeEvent
Only oneChangeEvent
is needed per button instance since the event's only state is the source property. The source of events generated is always "this".
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Method Detail
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setHideActionText
public void setHideActionText(boolean hideActionText)
Sets thehideActionText
property, which determines whether the button displays text from theAction
. This is useful only if anAction
has been installed on the button.- Parameters:
hideActionText
-true
if the button'stext
property should not reflect that of theAction
; the default isfalse
- Since:
- 1.6
- See Also:
- Swing Components Supporting
Action
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getHideActionText
public boolean getHideActionText()
Returns the value of thehideActionText
property, which determines whether the button displays text from theAction
. This is useful only if anAction
has been installed on the button.- Returns:
true
if the button'stext
property should not reflect that of theAction
; the default isfalse
- Since:
- 1.6
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getText
public String getText()
Returns the button's text.- Returns:
- the buttons text
- See Also:
setText(java.lang.String)
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setText
public void setText(String text)
Sets the button's text.- Parameters:
text
- the string used to set the text- See Also:
getText()
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isSelected
public boolean isSelected()
Returns the state of the button. True if the toggle button is selected, false if it's not.- Returns:
- true if the toggle button is selected, otherwise false
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setSelected
public void setSelected(boolean b)
Sets the state of the button. Note that this method does not trigger anactionEvent
. CalldoClick
to perform a programatic action change.- Parameters:
b
- true if the button is selected, otherwise false
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doClick
public void doClick()
Programmatically perform a "click". This does the same thing as if the user had pressed and released the button.
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doClick
public void doClick(int pressTime)
Programmatically perform a "click". This does the same thing as if the user had pressed and released the button. The button stays visually "pressed" forpressTime
milliseconds.- Parameters:
pressTime
- the time to "hold down" the button, in milliseconds
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setMargin
public void setMargin(Insets m)
Sets space for margin between the button's border and the label. Setting tonull
will cause the button to use the default margin. The button's defaultBorder
object will use this value to create the proper margin. However, if a non-default border is set on the button, it is thatBorder
object's responsibility to create the appropriate margin space (else this property will effectively be ignored).- Parameters:
m
- the space between the border and the label
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getMargin
public Insets getMargin()
Returns the margin between the button's border and the label.- Returns:
- an
Insets
object specifying the margin between the botton's border and the label - See Also:
setMargin(java.awt.Insets)
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getIcon
public Icon getIcon()
Returns the default icon.- Returns:
- the default
Icon
- See Also:
setIcon(javax.swing.Icon)
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setIcon
public void setIcon(Icon defaultIcon)
Sets the button's default icon. This icon is also used as the "pressed" and "disabled" icon if there is no explicitly set pressed icon.- Parameters:
defaultIcon
- the icon used as the default image- See Also:
getIcon()
,setPressedIcon(javax.swing.Icon)
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getPressedIcon
public Icon getPressedIcon()
Returns the pressed icon for the button.- Returns:
- the
pressedIcon
property - See Also:
setPressedIcon(javax.swing.Icon)
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setPressedIcon
public void setPressedIcon(Icon pressedIcon)
Sets the pressed icon for the button.- Parameters:
pressedIcon
- the icon used as the "pressed" image- See Also:
getPressedIcon()
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getSelectedIcon
public Icon getSelectedIcon()
Returns the selected icon for the button.- Returns:
- the
selectedIcon
property - See Also:
setSelectedIcon(javax.swing.Icon)
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setSelectedIcon
public void setSelectedIcon(Icon selectedIcon)
Sets the selected icon for the button.- Parameters:
selectedIcon
- the icon used as the "selected" image- See Also:
getSelectedIcon()
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getRolloverIcon
public Icon getRolloverIcon()
Returns the rollover icon for the button.- Returns:
- the
rolloverIcon
property - See Also:
setRolloverIcon(javax.swing.Icon)
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setRolloverIcon
public void setRolloverIcon(Icon rolloverIcon)
Sets the rollover icon for the button.- Parameters:
rolloverIcon
- the icon used as the "rollover" image- See Also:
getRolloverIcon()
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getRolloverSelectedIcon
public Icon getRolloverSelectedIcon()
Returns the rollover selection icon for the button.- Returns:
- the
rolloverSelectedIcon
property - See Also:
setRolloverSelectedIcon(javax.swing.Icon)
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setRolloverSelectedIcon
public void setRolloverSelectedIcon(Icon rolloverSelectedIcon)
Sets the rollover selected icon for the button.- Parameters:
rolloverSelectedIcon
- the icon used as the "selected rollover" image- See Also:
getRolloverSelectedIcon()
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getDisabledIcon
public Icon getDisabledIcon()
Returns the icon used by the button when it's disabled. If no disabled icon has been set this will forward the call to the look and feel to construct an appropriate disabled Icon.Some look and feels might not render the disabled Icon, in which case they will ignore this.
- Returns:
- the
disabledIcon
property - See Also:
getPressedIcon()
,setDisabledIcon(javax.swing.Icon)
,LookAndFeel.getDisabledIcon(javax.swing.JComponent, javax.swing.Icon)
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setDisabledIcon
public void setDisabledIcon(Icon disabledIcon)
Sets the disabled icon for the button.- Parameters:
disabledIcon
- the icon used as the disabled image- See Also:
getDisabledIcon()
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getDisabledSelectedIcon
public Icon getDisabledSelectedIcon()
Returns the icon used by the button when it's disabled and selected. If no disabled selection icon has been set, this will forward the call to the LookAndFeel to construct an appropriate disabled Icon from the selection icon if it has been set and togetDisabledIcon()
otherwise.Some look and feels might not render the disabled selected Icon, in which case they will ignore this.
- Returns:
- the
disabledSelectedIcon
property - See Also:
getDisabledIcon()
,setDisabledSelectedIcon(javax.swing.Icon)
,LookAndFeel.getDisabledSelectedIcon(javax.swing.JComponent, javax.swing.Icon)
-
setDisabledSelectedIcon
public void setDisabledSelectedIcon(Icon disabledSelectedIcon)
Sets the disabled selection icon for the button.- Parameters:
disabledSelectedIcon
- the icon used as the disabled selection image- See Also:
getDisabledSelectedIcon()
-
getVerticalAlignment
public int getVerticalAlignment()
Returns the vertical alignment of the text and icon.- Returns:
- the
verticalAlignment
property, one of the following values:SwingConstants.CENTER
(the default)SwingConstants.TOP
SwingConstants.BOTTOM
-
setVerticalAlignment
public void setVerticalAlignment(int alignment)
Sets the vertical alignment of the icon and text.- Parameters:
alignment
- one of the following values:SwingConstants.CENTER
(the default)SwingConstants.TOP
SwingConstants.BOTTOM
- Throws:
IllegalArgumentException
- if the alignment is not one of the legal values listed above
-
getHorizontalAlignment
public int getHorizontalAlignment()
Returns the horizontal alignment of the icon and text.AbstractButton
's default isSwingConstants.CENTER
, but subclasses such asJCheckBox
may use a different default.- Returns:
- the
horizontalAlignment
property, one of the following values:SwingConstants.RIGHT
SwingConstants.LEFT
SwingConstants.CENTER
SwingConstants.LEADING
SwingConstants.TRAILING
-
setHorizontalAlignment
public void setHorizontalAlignment(int alignment)
Sets the horizontal alignment of the icon and text.AbstractButton
's default isSwingConstants.CENTER
, but subclasses such asJCheckBox
may use a different default.- Parameters:
alignment
- the alignment value, one of the following values:SwingConstants.RIGHT
SwingConstants.LEFT
SwingConstants.CENTER
SwingConstants.LEADING
SwingConstants.TRAILING
- Throws:
IllegalArgumentException
- if the alignment is not one of the valid values
-
getVerticalTextPosition
public int getVerticalTextPosition()
Returns the vertical position of the text relative to the icon.- Returns:
- the
verticalTextPosition
property, one of the following values:SwingConstants.CENTER
(the default)SwingConstants.TOP
SwingConstants.BOTTOM
-
setVerticalTextPosition
public void setVerticalTextPosition(int textPosition)
Sets the vertical position of the text relative to the icon.- Parameters:
textPosition
- one of the following values:SwingConstants.CENTER
(the default)SwingConstants.TOP
SwingConstants.BOTTOM
-
getHorizontalTextPosition
public int getHorizontalTextPosition()
Returns the horizontal position of the text relative to the icon.- Returns:
- the
horizontalTextPosition
property, one of the following values:SwingConstants.RIGHT
SwingConstants.LEFT
SwingConstants.CENTER
SwingConstants.LEADING
SwingConstants.TRAILING
(the default)
-
setHorizontalTextPosition
public void setHorizontalTextPosition(int textPosition)
Sets the horizontal position of the text relative to the icon.- Parameters:
textPosition
- one of the following values:SwingConstants.RIGHT
SwingConstants.LEFT
SwingConstants.CENTER
SwingConstants.LEADING
SwingConstants.TRAILING
(the default)
- Throws:
IllegalArgumentException
- iftextPosition
is not one of the legal values listed above
-
getIconTextGap
public int getIconTextGap()
Returns the amount of space between the text and the icon displayed in this button.- Returns:
- an int equal to the number of pixels between the text and the icon.
- Since:
- 1.4
- See Also:
setIconTextGap(int)
-
setIconTextGap
public void setIconTextGap(int iconTextGap)
If both the icon and text properties are set, this property defines the space between them.The default value of this property is 4 pixels.
This is a JavaBeans bound property.
- Since:
- 1.4
- See Also:
getIconTextGap()
-
checkHorizontalKey
protected int checkHorizontalKey(int key, String exception)
Verify that thekey
argument is a legal value for thehorizontalAlignment
andhorizontalTextPosition
properties. Valid values are:SwingConstants.RIGHT
SwingConstants.LEFT
SwingConstants.CENTER
SwingConstants.LEADING
SwingConstants.TRAILING
- Parameters:
key
- the property value to checkexception
- the message to use in theIllegalArgumentException
that is thrown for an invalid value- Throws:
IllegalArgumentException
- if key is not one of the legal values listed above- See Also:
setHorizontalTextPosition(int)
,setHorizontalAlignment(int)
-
checkVerticalKey
protected int checkVerticalKey(int key, String exception)
Verify that thekey
argument is a legal value for the vertical properties. Valid values are:SwingConstants.CENTER
SwingConstants.TOP
SwingConstants.BOTTOM
- Parameters:
key
- the property value to checkexception
- the message to use in theIllegalArgumentException
that is thrown for an invalid value- Throws:
IllegalArgumentException
- if key is not one of the legal values listed above
-
removeNotify
public void removeNotify()
Notifies this component that it no longer has a parent component. When this method is invoked, anyKeyboardAction
s set up in the the chain of parent components are removed. This method is called by the toolkit internally and should not be called directly by programs.- Overrides:
removeNotify
in classJComponent
- Since:
- 1.6
- See Also:
JComponent.registerKeyboardAction(java.awt.event.ActionListener, java.lang.String, javax.swing.KeyStroke, int)
-
setActionCommand
public void setActionCommand(String actionCommand)
Sets the action command for this button.- Parameters:
actionCommand
- the action command for this button
-
getActionCommand
public String getActionCommand()
Returns the action command for this button.- Returns:
- the action command for this button
-
setAction
public void setAction(Action a)
Sets theAction
. The newAction
replaces any previously setAction
but does not affectActionListeners
independently added withaddActionListener
. If theAction
is already a registeredActionListener
for the button, it is not re-registered.Setting the
Action
results in immediately changing all the properties described in Swing Components SupportingAction
. Subsequently, the button's properties are automatically updated as theAction
's properties change.This method uses three other methods to set and help track the
Action
's property values. It uses theconfigurePropertiesFromAction
method to immediately change the button's properties. To track changes in theAction
's property values, this method registers thePropertyChangeListener
returned bycreateActionPropertyChangeListener
. The defaultPropertyChangeListener
invokes theactionPropertyChanged
method when a property in theAction
changes.- Parameters:
a
- theAction
for theAbstractButton
, ornull
- Since:
- 1.3
- See Also:
Action
,getAction()
,configurePropertiesFromAction(javax.swing.Action)
,createActionPropertyChangeListener(javax.swing.Action)
,actionPropertyChanged(javax.swing.Action, java.lang.String)
-
getAction
public Action getAction()
Returns the currently setAction
for thisActionEvent
source, ornull
if noAction
is set.- Returns:
- the
Action
for thisActionEvent
source, ornull
- Since:
- 1.3
- See Also:
Action
,setAction(javax.swing.Action)
-
configurePropertiesFromAction
protected void configurePropertiesFromAction(Action a)
Sets the properties on this button to match those in the specifiedAction
. Refer to Swing Components SupportingAction
for more details as to which properties this sets.- Parameters:
a
- theAction
from which to get the properties, ornull
- Since:
- 1.3
- See Also:
Action
,setAction(javax.swing.Action)
-
actionPropertyChanged
protected void actionPropertyChanged(Action action, String propertyName)
Updates the button's state in response to property changes in the associated action. This method is invoked from thePropertyChangeListener
returned fromcreateActionPropertyChangeListener
. Subclasses do not normally need to invoke this. Subclasses that support additionalAction
properties should override this andconfigurePropertiesFromAction
.Refer to the table at Swing Components Supporting
Action
for a list of the properties this method sets.- Parameters:
action
- theAction
associated with this buttonpropertyName
- the name of the property that changed- Since:
- 1.6
- See Also:
Action
,configurePropertiesFromAction(javax.swing.Action)
-
createActionPropertyChangeListener
protected PropertyChangeListener createActionPropertyChangeListener(Action a)
Creates and returns aPropertyChangeListener
that is responsible for listening for changes from the specifiedAction
and updating the appropriate properties.Warning: If you subclass this do not create an anonymous inner class. If you do the lifetime of the button will be tied to that of the
Action
.- Parameters:
a
- the button's action- Since:
- 1.3
- See Also:
Action
,setAction(javax.swing.Action)
-
isBorderPainted
public boolean isBorderPainted()
Gets theborderPainted
property.- Returns:
- the value of the
borderPainted
property - See Also:
setBorderPainted(boolean)
-
setBorderPainted
public void setBorderPainted(boolean b)
Sets theborderPainted
property. Iftrue
and the button has a border, the border is painted. The default value for theborderPainted
property istrue
. Some look and feels might not support theborderPainted
property, in which case they ignore this.- Parameters:
b
- if true and border property is notnull
, the border is painted- See Also:
isBorderPainted()
-
paintBorder
protected void paintBorder(Graphics g)
Paint the button's border ifBorderPainted
property is true and the button has a border.- Overrides:
paintBorder
in classJComponent
- Parameters:
g
- theGraphics
context in which to paint- See Also:
JComponent.paint(java.awt.Graphics)
,JComponent.setBorder(javax.swing.border.Border)
-
isFocusPainted
public boolean isFocusPainted()
Gets thepaintFocus
property.- Returns:
- the
paintFocus
property - See Also:
setFocusPainted(boolean)
-
setFocusPainted
public void setFocusPainted(boolean b)
Sets thepaintFocus
property, which must betrue
for the focus state to be painted. The default value for thepaintFocus
property istrue
. Some look and feels might not paint focus state; they will ignore this property.- Parameters:
b
- iftrue
, the focus state should be painted- See Also:
isFocusPainted()
-
isContentAreaFilled
public boolean isContentAreaFilled()
Gets thecontentAreaFilled
property.- Returns:
- the
contentAreaFilled
property - See Also:
setContentAreaFilled(boolean)
-
setContentAreaFilled
public void setContentAreaFilled(boolean b)
Sets thecontentAreaFilled
property. Iftrue
the button will paint the content area. If you wish to have a transparent button, such as an icon only button, for example, then you should set this tofalse
. Do not callsetOpaque(false)
. The default value for the thecontentAreaFilled
property istrue
.This function may cause the component's opaque property to change.
The exact behavior of calling this function varies on a component-by-component and L&F-by-L&F basis.
- Parameters:
b
- if true, the content should be filled; if false the content area is not filled- See Also:
isContentAreaFilled()
,JComponent.setOpaque(boolean)
-
isRolloverEnabled
public boolean isRolloverEnabled()
Gets therolloverEnabled
property.- Returns:
- the value of the
rolloverEnabled
property - See Also:
setRolloverEnabled(boolean)
-
setRolloverEnabled
public void setRolloverEnabled(boolean b)
Sets therolloverEnabled
property, which must betrue
for rollover effects to occur. The default value for therolloverEnabled
property isfalse
. Some look and feels might not implement rollover effects; they will ignore this property.- Parameters:
b
- iftrue
, rollover effects should be painted- See Also:
isRolloverEnabled()
-
getMnemonic
public int getMnemonic()
Returns the keyboard mnemonic from the the current model.- Returns:
- the keyboard mnemonic from the model
-
setMnemonic
public void setMnemonic(int mnemonic)
Sets the keyboard mnemonic on the current model. The mnemonic is the key which when combined with the look and feel's mouseless modifier (usually Alt) will activate this button if focus is contained somewhere within this button's ancestor window.A mnemonic must correspond to a single key on the keyboard and should be specified using one of the
VK_XXX
keycodes defined injava.awt.event.KeyEvent
. These codes and the wider array of codes for international keyboards may be obtained throughjava.awt.event.KeyEvent.getExtendedKeyCodeForChar
. Mnemonics are case-insensitive, therefore a key event with the corresponding keycode would cause the button to be activated whether or not the Shift modifier was pressed.If the character defined by the mnemonic is found within the button's label string, the first occurrence of it will be underlined to indicate the mnemonic to the user.
- Parameters:
mnemonic
- the key code which represents the mnemonic- See Also:
KeyEvent
,setDisplayedMnemonicIndex(int)
-
setMnemonic
public void setMnemonic(char mnemonic)
This method is now obsolete, please usesetMnemonic(int)
to set the mnemonic for a button. This method is only designed to handle character values which fall between 'a' and 'z' or 'A' and 'Z'.- Parameters:
mnemonic
- a char specifying the mnemonic value- See Also:
setMnemonic(int)
-
setDisplayedMnemonicIndex
public void setDisplayedMnemonicIndex(int index) throws IllegalArgumentException
Provides a hint to the look and feel as to which character in the text should be decorated to represent the mnemonic. Not all look and feels may support this. A value of -1 indicates either there is no mnemonic, the mnemonic character is not contained in the string, or the developer does not wish the mnemonic to be displayed.The value of this is updated as the properties relating to the mnemonic change (such as the mnemonic itself, the text...). You should only ever have to call this if you do not wish the default character to be underlined. For example, if the text was 'Save As', with a mnemonic of 'a', and you wanted the 'A' to be decorated, as 'Save As', you would have to invoke
setDisplayedMnemonicIndex(5)
after invokingsetMnemonic(KeyEvent.VK_A)
.- Parameters:
index
- Index into the String to underline- Throws:
IllegalArgumentException
- will be thrown ifindex
is >= length of the text, or < -1- Since:
- 1.4
- See Also:
getDisplayedMnemonicIndex()
-
getDisplayedMnemonicIndex
public int getDisplayedMnemonicIndex()
Returns the character, as an index, that the look and feel should provide decoration for as representing the mnemonic character.- Returns:
- index representing mnemonic character
- Since:
- 1.4
- See Also:
setDisplayedMnemonicIndex(int)
-
setMultiClickThreshhold
public void setMultiClickThreshhold(long threshhold)
Sets the amount of time (in milliseconds) required between mouse press events for the button to generate the corresponding action events. After the initial mouse press occurs (and action event generated) any subsequent mouse press events which occur on intervals less than the threshhold will be ignored and no corresponding action event generated. By default the threshhold is 0, which means that for each mouse press, an action event will be fired, no matter how quickly the mouse clicks occur. In buttons where this behavior is not desirable (for example, the "OK" button in a dialog), this threshhold should be set to an appropriate positive value.- Parameters:
threshhold
- the amount of time required between mouse press events to generate corresponding action events- Throws:
IllegalArgumentException
- if threshhold < 0- Since:
- 1.4
- See Also:
getMultiClickThreshhold()
-
getMultiClickThreshhold
public long getMultiClickThreshhold()
Gets the amount of time (in milliseconds) required between mouse press events for the button to generate the corresponding action events.- Returns:
- the amount of time required between mouse press events to generate corresponding action events
- Since:
- 1.4
- See Also:
setMultiClickThreshhold(long)
-
getModel
public ButtonModel getModel()
Returns the model that this button represents.- Returns:
- the
model
property - See Also:
setModel(javax.swing.ButtonModel)
-
setModel
public void setModel(ButtonModel newModel)
Sets the model that this button represents.- Parameters:
newModel
- the newButtonModel
- See Also:
getModel()
-
getUI
public ButtonUI getUI()
Returns the L&F object that renders this component.- Returns:
- the ButtonUI object
- See Also:
setUI(javax.swing.plaf.ButtonUI)
-
setUI
public void setUI(ButtonUI ui)
Sets the L&F object that renders this component.- Parameters:
ui
- theButtonUI
L&F object- See Also:
getUI()
-
updateUI
public void updateUI()
Resets the UI property to a value from the current look and feel. Subtypes ofAbstractButton
should override this to update the UI. For example,JButton
might do the following:setUI((ButtonUI)UIManager.getUI( "ButtonUI", "javax.swing.plaf.basic.BasicButtonUI", this));
- Overrides:
updateUI
in classJComponent
- See Also:
JComponent.setUI(javax.swing.plaf.ComponentUI)
,UIManager.getLookAndFeel()
,UIManager.getUI(javax.swing.JComponent)
-
addImpl
protected void addImpl(Component comp, Object constraints, int index)
Adds the specified component to this container at the specified index, refer toContainer.addImpl(Component, Object, int)
for a complete description of this method.- Overrides:
addImpl
in classContainer
- Parameters:
comp
- the component to be addedconstraints
- an object expressing layout constraints for this componentindex
- the position in the container's list at which to insert the component, where-1
means append to the end- Throws:
IllegalArgumentException
- ifindex
is invalidIllegalArgumentException
- if adding the container's parent to itselfIllegalArgumentException
- if adding a window to a container- Since:
- 1.5
- See Also:
Container.add(Component)
,Container.add(Component, int)
,Container.add(Component, java.lang.Object)
,Container.invalidate()
,LayoutManager
,LayoutManager2
-
setLayout
public void setLayout(LayoutManager mgr)
Sets the layout manager for this container, refer toContainer.setLayout(LayoutManager)
for a complete description of this method.- Overrides:
setLayout
in classContainer
- Parameters:
mgr
- the specified layout manager- Since:
- 1.5
- See Also:
Container.doLayout()
,Container.getLayout()
,Container.invalidate()
-
addChangeListener
public void addChangeListener(ChangeListener l)
Adds aChangeListener
to the button.- Parameters:
l
- the listener to be added
-
removeChangeListener
public void removeChangeListener(ChangeListener l)
Removes a ChangeListener from the button.- Parameters:
l
- the listener to be removed
-
getChangeListeners
public ChangeListener[] getChangeListeners()
Returns an array of all theChangeListener
s added to this AbstractButton with addChangeListener().- Returns:
- all of the
ChangeListener
s added or an empty array if no listeners have been added - Since:
- 1.4
-
fireStateChanged
protected void fireStateChanged()
Notifies all listeners that have registered interest for notification on this event type. The event instance is lazily created.- See Also:
EventListenerList
-
addActionListener
public void addActionListener(ActionListener l)
Adds anActionListener
to the button.- Parameters:
l
- theActionListener
to be added
-
removeActionListener
public void removeActionListener(ActionListener l)
Removes anActionListener
from the button. If the listener is the currently setAction
for the button, then theAction
is set tonull
.- Parameters:
l
- the listener to be removed
-
getActionListeners
public ActionListener[] getActionListeners()
Returns an array of all theActionListener
s added to this AbstractButton with addActionListener().- Returns:
- all of the
ActionListener
s added or an empty array if no listeners have been added - Since:
- 1.4
-
createChangeListener
protected ChangeListener createChangeListener()
Subclasses that want to handleChangeEvents
differently can override this to return anotherChangeListener
implementation.- Returns:
- the new
ChangeListener
-
fireActionPerformed
protected void fireActionPerformed(ActionEvent event)
Notifies all listeners that have registered interest for notification on this event type. The event instance is lazily created using theevent
parameter.- Parameters:
event
- theActionEvent
object- See Also:
EventListenerList
-
fireItemStateChanged
protected void fireItemStateChanged(ItemEvent event)
Notifies all listeners that have registered interest for notification on this event type. The event instance is lazily created using theevent
parameter.- Parameters:
event
- theItemEvent
object- See Also:
EventListenerList
-
createActionListener
protected ActionListener createActionListener()
-
createItemListener
protected ItemListener createItemListener()
-
setEnabled
public void setEnabled(boolean b)
Enables (or disables) the button.- Overrides:
setEnabled
in classJComponent
- Parameters:
b
- true to enable the button, otherwise false- See Also:
Component.isEnabled()
,Component.isLightweight()
-
getLabel
@Deprecated public String getLabel()
Deprecated. - Replaced bygetText
Returns the label text.- Returns:
- a
String
containing the label
-
setLabel
@Deprecated public void setLabel(String label)
Deprecated. - Replaced bysetText(text)
Sets the label text.- Parameters:
label
- aString
containing the text
-
addItemListener
public void addItemListener(ItemListener l)
Adds anItemListener
to thecheckbox
.- Specified by:
addItemListener
in interfaceItemSelectable
- Parameters:
l
- theItemListener
to be added- See Also:
ItemEvent
-
removeItemListener
public void removeItemListener(ItemListener l)
Removes anItemListener
from the button.- Specified by:
removeItemListener
in interfaceItemSelectable
- Parameters:
l
- theItemListener
to be removed- See Also:
ItemEvent
-
getItemListeners
public ItemListener[] getItemListeners()
Returns an array of all theItemListener
s added to this AbstractButton with addItemListener().- Returns:
- all of the
ItemListener
s added or an empty array if no listeners have been added - Since:
- 1.4
-
getSelectedObjects
public Object[] getSelectedObjects()
Returns an array (length 1) containing the label ornull
if the button is not selected.- Specified by:
getSelectedObjects
in interfaceItemSelectable
- Returns:
- an array containing 1 Object: the text of the button,
if the item is selected; otherwise
null
-
imageUpdate
public boolean imageUpdate(Image img, int infoflags, int x, int y, int w, int h)
This is overridden to return false if the currentIcon
'sImage
is not equal to the passed inImage
img
.- Specified by:
imageUpdate
in interfaceImageObserver
- Overrides:
imageUpdate
in classComponent
- Parameters:
img
- theImage
to be comparedinfoflags
- flags used to repaint the button when the image is updated and which determine how much is to be paintedx
- the x coordinatey
- the y coordinatew
- the widthh
- the height- Returns:
false
if the infoflags indicate that the image is completely loaded;true
otherwise.- See Also:
ImageObserver
,Component.imageUpdate(java.awt.Image, int, int, int, int, int)
-
paramString
protected String paramString()
Returns a string representation of thisAbstractButton
. This method is intended to be used only for debugging purposes, and the content and format of the returned string may vary between implementations. The returned string may be empty but may not benull
.Overriding
paramString
to provide information about the specific new aspects of the JFC components.- Overrides:
paramString
in classJComponent
- Returns:
- a string representation of this
AbstractButton
-
-
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