Class JToolBar

java.lang.Object
java.awt.Component
java.awt.Container
javax.swing.JComponent
javax.swing.JToolBar
All Implemented Interfaces:
ImageObserver, MenuContainer, Serializable, Accessible, SwingConstants 
@JavaBean(defaultProperty="UI", description="A component which displays commonly used controls or Actions.") 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.

With most look and feels, the user can drag out a tool bar into a separate window (unless the floatable property is set to false). 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".

Warning: Swing is not thread safe. For more information see Swing's Threading Policy.

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 JavaBeans has been added to the java.beans package. Please see XMLEncoder.

Since:
1.2
See Also:

Nested Class Summary

Modifier and Type Class Description
protected class  JToolBar.AccessibleJToolBar
This class implements accessibility support for the JToolBar class.
static class  JToolBar.Separator
A toolbar-specific separator.

Nested classes/interfaces declared in class javax.swing.JComponent

JComponent.AccessibleJComponent

Nested classes/interfaces declared in class java.awt.Container

Container.AccessibleAWTContainer

Nested classes/interfaces declared in class java.awt.Component

Component.AccessibleAWTComponent, Component.BaselineResizeBehavior, Component.BltBufferStrategy, Component.FlipBufferStrategy

Field Summary

Fields declared in class javax.swing.JComponent

listenerList, TOOL_TIP_TEXT_KEY, ui, UNDEFINED_CONDITION, WHEN_ANCESTOR_OF_FOCUSED_COMPONENT, WHEN_FOCUSED, WHEN_IN_FOCUSED_WINDOW

Fields declared in class java.awt.Component

accessibleContext, BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT

Fields declared in interface java.awt.image.ImageObserver

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

Fields declared in 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

Constructor Summary

Constructor Description
JToolBar()
Creates a new tool bar; orientation defaults to HORIZONTAL.
JToolBar(int orientation)
Creates a new tool bar with the specified orientation.
JToolBar(String name)
Creates a new tool bar with the specified name.
JToolBar(String name, int orientation)
Creates a new tool bar with a specified name and orientation.

Method Summary

Modifier and Type Method Description
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 separator of default size to the end of the tool bar.
void addSeparator(Dimension size)
Appends a separator of a specified size to the end of the tool bar.
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 tool bar's border and its buttons.
int getOrientation()
Returns the current orientation of the tool bar.
ToolBarUI getUI()
Returns the tool bar's current UI.
String getUIClassID()
Returns the name of the L&F class that renders this component.
boolean isBorderPainted()
Gets the borderPainted property.
boolean isFloatable()
Gets the floatable property.
boolean isRollover()
Returns the rollover state.
protected void paintBorder(Graphics g)
Paints the tool bar's border if the borderPainted property is true.
protected String paramString()
Returns a string representation of this JToolBar.
void setBorderPainted(boolean b)
Sets the borderPainted property, which is true if the border should be painted.
void setFloatable(boolean b)
Sets the floatable property, which must be true for the user to move the tool bar.
void setMargin(Insets m)
Sets the margin between the tool bar's border and its buttons.
void setOrientation(int o)
Sets the orientation of the tool bar.
void setRollover(boolean rollover)
Sets the rollover state of this 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 declared in class javax.swing.JComponent

addAncestorListener, addNotify, addVetoableChangeListener, computeVisibleRect, contains, createToolTip, disable, enable, firePropertyChange, firePropertyChange, fireVetoableChange, getActionForKeyStroke, getActionMap, getAlignmentX, getAlignmentY, getAncestorListeners, getAutoscrolls, getBaseline, getBaselineResizeBehavior, getBorder, getBounds, getClientProperty, getComponentGraphics, getComponentPopupMenu, getConditionForKeyStroke, getDebugGraphicsOptions, getDefaultLocale, getFontMetrics, getGraphics, getHeight, getInheritsPopupMenu, getInputMap, getInputMap, getInputVerifier, getInsets, getInsets, getListeners, getLocation, getMaximumSize, getMinimumSize, getNextFocusableComponent, getPopupLocation, getPreferredSize, getRegisteredKeyStrokes, getRootPane, getSize, getToolTipLocation, getToolTipText, getToolTipText, getTopLevelAncestor, getTransferHandler, getVerifyInputWhenFocusTarget, getVetoableChangeListeners, getVisibleRect, getWidth, getX, getY, grabFocus, hide, isDoubleBuffered, isLightweightComponent, isManagingFocus, 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, removeNotify, removeVetoableChangeListener, repaint, repaint, requestDefaultFocus, requestFocus, requestFocus, requestFocusInWindow, requestFocusInWindow, resetKeyboardActions, reshape, revalidate, scrollRectToVisible, setActionMap, setAlignmentX, setAlignmentY, setAutoscrolls, setBackground, 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

Methods declared in 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, setLayout, transferFocusDownCycle, validate, validateTree

Methods declared in 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, 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

Methods declared in class java.lang.Object

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

Constructor Details

JToolBar

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

JToolBar

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

JToolBar

public JToolBar(String name, int orientation)
Creates a new tool bar 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 tool bar
orientation - the initial orientation -- it must be either HORIZONTAL or VERTICAL
Throws:
IllegalArgumentException - if orientation is neither HORIZONTAL nor VERTICAL
Since:
1.3

Method Details

getUI

public ToolBarUI getUI()
Returns the tool bar's current UI.
Overrides:
getUI in class JComponent
Returns:
the tool bar's current UI.
See Also:

setUI

@BeanProperty(hidden=true, visualUpdate=true, description="The UI object that implements the Component\'s LookAndFeel.") public void setUI(ToolBarUI ui)
Sets the L&F object that renders this component.
Parameters:
ui - the ToolBarUI L&F object
See Also:

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:

getUIClassID

@BeanProperty(bound=false) 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:

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

@BeanProperty(expert=true, description="The margin between the tool bar\'s border and contents") public void setMargin(Insets m)
Sets the margin between the tool bar's border and its buttons. Setting to null causes the tool bar to use the default margins. The tool bar's default Border object uses this value to create the proper margin. However, if a non-default border is set on the tool bar, 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:

getMargin

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

isBorderPainted

public boolean isBorderPainted()
Gets the borderPainted property.
Returns:
the value of the borderPainted property
See Also:

setBorderPainted

@BeanProperty(expert=true, description="Does the tool bar paint its borders?") public void setBorderPainted(boolean b)
Sets the borderPainted property, which is true if the border should be painted. The default value for this property is true. Some look and feels might not implement painted borders; they will ignore this property.
Parameters:
b - if true, the border is painted
See Also:

paintBorder

protected void paintBorder(Graphics g)
Paints the tool bar's border if the borderPainted property is true.
Overrides:
paintBorder in class JComponent
Parameters:
g - the Graphics context in which the painting is done
See Also:

isFloatable

public boolean isFloatable()
Gets the floatable property.
Returns:
the value of the floatable property
See Also:

setFloatable

@BeanProperty(preferred=true, description="Can the tool bar be made to float by the user?") public void setFloatable(boolean b)
Sets the floatable property, which must be true for the user to move the tool bar. Typically, a floatable tool bar can be dragged into a different position within the same container or out into its own window. The default value of this property is true. Some look and feels might not implement floatable tool bars; they will ignore this property.
Parameters:
b - if true, the tool bar can be moved; false otherwise
See Also:

getOrientation

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

setOrientation

@BeanProperty(preferred=true, enumerationValues={"SwingConstants.HORIZONTAL","SwingConstants.VERTICAL"}, description="The current orientation of the tool bar") public void setOrientation(int o)
Sets the orientation of the tool bar. 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:

setRollover

@BeanProperty(preferred=true, visualUpdate=true, description="Will draw rollover button borders in the toolbar.") public void setRollover(boolean rollover)
Sets the rollover state of this toolbar. If the rollover state is true then the border of the toolbar buttons will be drawn only when the mouse pointer hovers over them. The default value of this property is false.

The implementation of a look and feel may choose to ignore this property.

Parameters:
rollover - true for rollover toolbar buttons; otherwise false
Since:
1.4

isRollover

public boolean isRollover()
Returns the rollover state.
Returns:
true if rollover toolbar buttons are to be drawn; otherwise false
Since:
1.4
See Also:

addSeparator

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

addSeparator

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

add

public JButton add(Action a)
Adds a new JButton which dispatches the action.
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.
Parameters:
a - the Action for the button to be added
Returns:
the newly created button
Since:
1.3
See Also:

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.
Parameters:
b - a JButton
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
See Also:

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

@BeanProperty(bound=false) 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 Component
Returns:
an AccessibleJToolBar that serves as the AccessibleContext of this JToolBar

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https://docs.oracle.com/en/java/javase/17/docs/api/java.desktop/javax/swing/JToolBar.html