JavaTM 2 Platform
Std. Ed. v1.3.1

javax.swing
Class JToolBar

java.lang.Object
  |
  +--java.awt.Component
        |
        +--java.awt.Container
              |
              +--javax.swing.JComponent
                    |
                    +--javax.swing.JToolBar
All Implemented Interfaces:
Accessible, ImageObserver, MenuContainer, Serializable, SwingConstants

public class JToolBar
extends JComponent
implements SwingConstants, Accessible

JToolBar provides a component that is useful for displaying commonly used Actions or controls. For examples and information on using tool bars see How to Use Tool Bars, a section in The Java Tutorial.

A tool bar can be dragged out into a separate window by the user (unless the floatable property is set to false). In order for drag-out to work correctly, it is recommended that you add JToolBar instances to one of the four 'sides' of a container whose layout manager is a BorderLayout, and do not add children to any of the other four 'sides'.

For the keyboard keys used by this component in the standard Look and Feel (L&F) renditions, see the JToolBar key assignments.

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. A future release of Swing will provide support for long term persistence.

See Also:
Action, Serialized Form

Inner Class Summary
protected  class JToolBar.AccessibleJToolBar
          This class implements accessibility support for the JToolBar class.
static class JToolBar.Separator
          A toolbar-specific separator.
 
Inner classes inherited from class javax.swing.JComponent
JComponent.AccessibleJComponent
 
Inner classes inherited from class java.awt.Container
Container.AccessibleAWTContainer
 
Inner classes inherited from class java.awt.Component
Component.AccessibleAWTComponent
 
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, NORTH, NORTH_EAST, NORTH_WEST, 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
JToolBar()
          Creates a new toolbar; orientation defaults to HORIZONTAL.
JToolBar(int orientation)
          Creates a new toolbar with the specified orientation.
JToolBar(String name)
          Creates a new toolbar with the specified name.
JToolBar(String name, int orientation)
          Creates a new toolbar with a specified name and orientation.
 
Method Summary
 JButton add(Action a)
          Adds a new JButton which dispatches the action.
protected  void addImpl(Component comp, Object constraints, int index)
          If a JButton is being added, it is initially set to be disabled.
 void addSeparator()
          Appends a toolbar separator of default size to the end of the toolbar.
 void addSeparator(Dimension size)
          Appends a toolbar separator of a specified size to the end of the toolbar.
protected  PropertyChangeListener createActionChangeListener(JButton b)
          Returns a properly configured PropertyChangeListener which updates the control as changes to the Action occur, or null if the default property change listener for the control is desired.
protected  JButton createActionComponent(Action a)
          Factory method which creates the JButton for Actions added to the JToolBar.
 AccessibleContext getAccessibleContext()
          Gets the AccessibleContext associated with this JToolBar.
 Component getComponentAtIndex(int i)
          Returns the component at the specified index.
 int getComponentIndex(Component c)
          Returns the index of the specified component.
 Insets getMargin()
          Returns the margin between the toolbar's border and its buttons.
 int getOrientation()
          Returns the current orientation of the toolbar.
 ToolBarUI getUI()
          Returns the toolbar's current UI.
 String getUIClassID()
          Returns the name of the L&F class that renders this component.
 boolean isBorderPainted()
          Checks whether the border should be painted.
 boolean isFloatable()
          Returns true if the JToolbar can be dragged out by the user.
protected  void paintBorder(Graphics g)
          Paint the toolbar's border if BorderPainted property is true.
protected  String paramString()
          Returns a string representation of this JToolBar.
 void setBorderPainted(boolean b)
          Sets whether the border should be painted.
 void setFloatable(boolean b)
          Sets whether the toolbar can be made to float.
 void setMargin(Insets m)
          Sets the margin between the toolbar's border and its buttons.
 void setOrientation(int o)
          Sets the orientation of the toolbar.
 void setUI(ToolBarUI ui)
          Sets the L&F object that renders this component.
 void updateUI()
          Notification from the UIFactory that the L&F has changed.
 
Methods inherited from class javax.swing.JComponent
addAncestorListener, addNotify, addPropertyChangeListener, addPropertyChangeListener, addVetoableChangeListener, computeVisibleRect, contains, createToolTip, disable, enable, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, fireVetoableChange, getActionForKeyStroke, getActionMap, getAlignmentX, getAlignmentY, getAutoscrolls, getBorder, getBounds, getClientProperty, getComponentGraphics, getConditionForKeyStroke, getDebugGraphicsOptions, getGraphics, getHeight, getInputMap, getInputMap, getInputVerifier, getInsets, getInsets, getListeners, getLocation, getMaximumSize, getMinimumSize, getNextFocusableComponent, getPreferredSize, getRegisteredKeyStrokes, getRootPane, getSize, getToolTipLocation, getToolTipText, getToolTipText, getTopLevelAncestor, getVerifyInputWhenFocusTarget, getVisibleRect, getWidth, getX, getY, grabFocus, hasFocus, hide, isDoubleBuffered, isFocusCycleRoot, isFocusTraversable, isLightweightComponent, isManagingFocus, isMaximumSizeSet, isMinimumSizeSet, isOpaque, isOptimizedDrawingEnabled, isPaintingTile, isPreferredSizeSet, isRequestFocusEnabled, isValidateRoot, paint, paintChildren, paintComponent, paintImmediately, paintImmediately, print, printAll, printBorder, printChildren, printComponent, processComponentKeyEvent, processFocusEvent, processKeyBinding, processKeyEvent, processMouseMotionEvent, putClientProperty, registerKeyboardAction, registerKeyboardAction, removeAncestorListener, removeNotify, removePropertyChangeListener, removePropertyChangeListener, removeVetoableChangeListener, repaint, repaint, requestDefaultFocus, requestFocus, resetKeyboardActions, reshape, revalidate, scrollRectToVisible, setActionMap, setAlignmentX, setAlignmentY, setAutoscrolls, setBackground, setBorder, setDebugGraphicsOptions, setDoubleBuffered, setEnabled, setFont, setForeground, setInputMap, setInputVerifier, setMaximumSize, setMinimumSize, setNextFocusableComponent, setOpaque, setPreferredSize, setRequestFocusEnabled, setToolTipText, setUI, setVerifyInputWhenFocusTarget, setVisible, unregisterKeyboardAction, update
 
Methods inherited from class java.awt.Container
add, add, add, add, add, addContainerListener, countComponents, deliverEvent, doLayout, findComponentAt, findComponentAt, getComponent, getComponentAt, getComponentAt, getComponentCount, getComponents, getLayout, insets, invalidate, isAncestorOf, layout, list, list, locate, minimumSize, paintComponents, preferredSize, printComponents, processContainerEvent, processEvent, remove, remove, removeAll, removeContainerListener, setLayout, validate, validateTree
 
Methods inherited from class java.awt.Component
action, add, addComponentListener, addFocusListener, addHierarchyBoundsListener, addHierarchyListener, addInputMethodListener, addKeyListener, addMouseListener, addMouseMotionListener, bounds, checkImage, checkImage, coalesceEvents, contains, createImage, createImage, disableEvents, dispatchEvent, enable, enableEvents, enableInputMethods, getBackground, getBounds, getColorModel, getComponentOrientation, getCursor, getDropTarget, getFont, getFontMetrics, getForeground, getGraphicsConfiguration, getInputContext, getInputMethodRequests, getLocale, getLocation, getLocationOnScreen, getName, getParent, getPeer, getSize, getToolkit, getTreeLock, gotFocus, handleEvent, imageUpdate, inside, isDisplayable, isEnabled, isLightweight, isShowing, isValid, isVisible, keyDown, keyUp, list, list, list, location, lostFocus, mouseDown, mouseDrag, mouseEnter, mouseExit, mouseMove, mouseUp, move, nextFocus, paintAll, postEvent, prepareImage, prepareImage, processComponentEvent, processHierarchyBoundsEvent, processHierarchyEvent, processInputMethodEvent, processMouseEvent, remove, removeComponentListener, removeFocusListener, removeHierarchyBoundsListener, removeHierarchyListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, repaint, repaint, repaint, resize, resize, setBounds, setBounds, setComponentOrientation, setCursor, setDropTarget, setLocale, setLocation, setLocation, setName, setSize, setSize, show, show, size, toString, transferFocus
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Constructor Detail

JToolBar

public JToolBar()
Creates a new toolbar; orientation defaults to HORIZONTAL.

JToolBar

public JToolBar(int orientation)
Creates a new toolbar with the specified orientation. The orientation must be either HORIZONTAL or VERTICAL.
Parameters:
orientation - the orientation desired

JToolBar

public JToolBar(String name)
Creates a new toolbar with the specified name. The name is used as the title of the undocked toolbar. The default orientation is HORIZONTAL.
Parameters:
name - the name of the toolbar
Since:
1.3

JToolBar

public JToolBar(String name,
                int orientation)
Creates a new toolbar with a specified name and orientation. All other constructors call this constructor. If orientation is an invalid value, an exception will be thrown.
Parameters:
name - the name of the toolbar
orientation - the initial orientation -- it must be either HORIZONTAL or VERTICAL
Throws:
IllegalArgumentException - if orientation is neither HORIZONTAL nor VERTICAL
Since:
1.3
Method Detail

getUI

public ToolBarUI getUI()
Returns the toolbar's current UI.
See Also:
setUI(javax.swing.plaf.ToolBarUI)

setUI

public void setUI(ToolBarUI ui)
Sets the L&F object that renders this component.
Parameters:
ui - the ToolBarUI L&F object
See Also:
UIDefaults.getUI(javax.swing.JComponent)

updateUI

public void updateUI()
Notification from the UIFactory that the L&F has changed. Called to replace the UI with the latest version from the UIFactory.
Overrides:
updateUI in class JComponent
See Also:
JComponent.updateUI()

getUIClassID

public String getUIClassID()
Returns the name of the L&F class that renders this component.
Overrides:
getUIClassID in class JComponent
Returns:
the string "ToolBarUI"
See Also:
JComponent.getUIClassID(), UIDefaults.getUI(javax.swing.JComponent)

getComponentIndex

public int getComponentIndex(Component c)
Returns the index of the specified component. (Note: Separators occupy index positions.)
Parameters:
c - the Component to find
Returns:
an integer indicating the component's position, where 0 is first

getComponentAtIndex

public Component getComponentAtIndex(int i)
Returns the component at the specified index.
Parameters:
i - the component's position, where 0 is first
Returns:
the Component at that position, or null for an invalid index

setMargin

public void setMargin(Insets m)
Sets the margin between the toolbar's border and its buttons. Setting to null causes the toolbar to use the default margins. The toolbar's default Border object uses this value to create the proper margin. However, if a non-default border is set on the toolbar, it is that Border object's responsibility to create the appropriate margin space (otherwise this property will effectively be ignored).
Parameters:
m - an Insets object that defines the space between the border and the buttons
See Also:
Insets

getMargin

public Insets getMargin()
Returns the margin between the toolbar's border and its buttons.
Returns:
an Insets object containing the margin values
See Also:
Insets

isBorderPainted

public boolean isBorderPainted()
Checks whether the border should be painted.
Returns:
true if the border should be painted, else false
See Also:
setBorderPainted(boolean)

setBorderPainted

public void setBorderPainted(boolean b)
Sets whether the border should be painted.
Parameters:
b - if true, the border is painted
See Also:
isBorderPainted()

paintBorder

protected void paintBorder(Graphics g)
Paint the toolbar's border if BorderPainted property is true.
Overrides:
paintBorder in class JComponent
Parameters:
g - the Graphics context in which the painting is done
See Also:
JComponent.paint(java.awt.Graphics), JComponent.setBorder(javax.swing.border.Border)

isFloatable

public boolean isFloatable()
Returns true if the JToolbar can be dragged out by the user.
Returns:
true if the JToolbar can be dragged out by the user, false otherwise

setFloatable

public void setFloatable(boolean b)
Sets whether the toolbar can be made to float.
Parameters:
b - if true, the toolbar can be dragged out; false otherwise
See Also:
isFloatable()

getOrientation

public int getOrientation()
Returns the current orientation of the toolbar. The value is either HORIZONTAL or VERTICAL.
Returns:
an integer representing the current orientation -- either HORIZONTAL or VERTICAL
See Also:
setOrientation(int)

setOrientation

public void setOrientation(int o)
Sets the orientation of the toolbar. The orientation must have either the value HORIZONTAL or VERTICAL. If orientation is an invalid value, an exception will be thrown.
Parameters:
o - the new orientation -- either HORIZONTAL or VERTICAL
Throws:
IllegalArgumentException - if orientation is neither HORIZONTAL nor VERTICAL
See Also:
getOrientation()

addSeparator

public void addSeparator()
Appends a toolbar separator of default size to the end of the toolbar. The default size is determined by the current look and feel.

addSeparator

public void addSeparator(Dimension size)
Appends a toolbar separator of a specified size to the end of the toolbar.
Parameters:
size - the Dimension of the separator

add

public JButton add(Action a)
Adds a new JButton which dispatches the action.

As of 1.3, this is no longer the preferred method for adding Actions to a container. Instead it is recommended to configure a control with an action using using setAction, and then add that control directly to the Container.

Parameters:
a - the Action object to add as a new menu item
Returns:
the new button which dispatches the action

createActionComponent

protected JButton createActionComponent(Action a)
Factory method which creates the JButton for Actions added to the JToolBar. The default name is empty if a null action is passed.

As of 1.3, this is no longer the preferred method for adding Actions to a Container. Instead it is recommended to configure a control with an action using setAction, and then add that control directly to the Container.

Parameters:
a - the Action for the button to be added
Returns:
the newly created button
See Also:
Action

createActionChangeListener

protected PropertyChangeListener createActionChangeListener(JButton b)
Returns a properly configured PropertyChangeListener which updates the control as changes to the Action occur, or null if the default property change listener for the control is desired.

As of 1.3, this is no longer the preferred method for adding Actions to a Container. Instead it is recommended to configure a control with an action using setAction, and then add that control directly to the Container.

Returns:
null

addImpl

protected void addImpl(Component comp,
                       Object constraints,
                       int index)
If a JButton is being added, it is initially set to be disabled.
Overrides:
addImpl in class Container
Parameters:
comp - the component to be enhanced
constraints - the constraints to be enforced on the component
index - the index of the component

paramString

protected String paramString()
Returns a string representation of this JToolBar. 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 be null.
Overrides:
paramString in class JComponent
Returns:
a string representation of this JToolBar.

getAccessibleContext

public AccessibleContext getAccessibleContext()
Gets the AccessibleContext associated with this JToolBar. For tool bars, the AccessibleContext takes the form of an AccessibleJToolBar. A new AccessibleJToolBar instance is created if necessary.
Specified by:
getAccessibleContext in interface Accessible
Overrides:
getAccessibleContext in class JComponent
Returns:
an AccessibleJToolBar that serves as the AccessibleContext of this JToolBar

JavaTM 2 Platform
Std. Ed. v1.3.1

Submit a bug or feature
For further API reference and developer documentation, see Java 2 SDK SE Developer Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.

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