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javax.swing.plaf.basic
Class BasicMenuItemUI
java.lang.Object
javax.swing.plaf.ComponentUI
javax.swing.plaf.ButtonUI
javax.swing.plaf.MenuItemUI
javax.swing.plaf.basic.BasicMenuItemUI
-
Direct Known Subclasses:
-
BasicCheckBoxMenuItemUI
,
BasicMenuUI
,
BasicRadioButtonMenuItemUI
-
public class BasicMenuItemUI
- extends MenuItemUI
BasicMenuItem implementation
Nested Class Summary
|
protected class |
BasicMenuItemUI.MouseInputHandler
|
Method Summary
|
protected
MenuDragMouseListener
|
createMenuDragMouseListener
(
JComponent
c)
|
protected
MenuKeyListener
|
createMenuKeyListener
(
JComponent
c)
|
protected
MouseInputListener
|
createMouseInputListener
(
JComponent
c)
|
protected
PropertyChangeListener
|
createPropertyChangeListener
(
JComponent
Creates a PropertyChangeListener which will be added to the menu item.
|
static
ComponentUI
|
createUI
(
JComponent
c)
|
protected void |
doClick
(
MenuSelectionManager
msm)
Call this method when a menu item is to be activated. |
Dimension
|
getMaximumSize
(
JComponent
c)
Returns the specified component's maximum size appropriate for the look and feel. |
Dimension
|
getMinimumSize
(
JComponent
c)
Returns the specified component's minimum size appropriate for the look and feel. |
MenuElement
[] |
getPath
()
|
protected
Dimension
|
getPreferredMenuItemSize
(
JComponent
c,
Icon
checkIcon,
Icon
arrowIcon, int defaultTextIconGap)
|
Dimension
|
getPreferredSize
(
JComponent
c)
Returns the specified component's preferred size appropriate for the look and feel. |
protected
String
|
getPropertyPrefix
()
|
protected void |
installComponents
(
JMenuItem
menuItem)
|
protected void |
installDefaults
()
|
protected void |
installKeyboardActions
()
|
protected void |
installListeners
()
|
void |
installUI
(
JComponent
c)
Configures the specified component appropriate for the look and feel. |
void |
paint
(
Graphics
g,
JComponent
c)
Paints the specified component appropriate for the look and feel. |
protected void |
paintBackground
(
Graphics
g,
JMenuItem
menuItem,
Color
bgColor)
Draws the background of the menu item. |
protected void |
paintMenuItem
(
Graphics
g,
JComponent
c,
Icon
checkIcon,
Icon
arrowIcon,
Color
background,
Color
foreground, int defaultTextIconGap)
|
protected void |
paintText
(
Graphics
g,
JMenuItem
menuItem,
Rectangle
textRect,
String
text)
Renders the text of the current menu item. |
protected void |
uninstallComponents
(
JMenuItem
menuItem)
|
protected void |
uninstallDefaults
()
|
protected void |
uninstallKeyboardActions
()
|
protected void |
uninstallListeners
()
|
void |
uninstallUI
(
JComponent
c)
Reverses configuration which was done on the specified component during installUI. |
void |
update
(
Graphics
g,
JComponent
c)
We draw the background in paintMenuItem() so override update (which fills the background of opaque components by default) to just call paint(). |
Methods inherited from class java.lang.
Object
|
clone
,
equals
,
finalize
,
getClass
,
hashCode
,
notify
,
notifyAll
,
toString
,
wait
,
wait
,
wait
|
menuItem
protected JMenuItem menuItem
selectionBackground
protected Color selectionBackground
selectionForeground
protected Color selectionForeground
disabledForeground
protected Color disabledForeground
acceleratorForeground
protected Color acceleratorForeground
acceleratorSelectionForeground
protected Color acceleratorSelectionForeground
defaultTextIconGap
protected int defaultTextIconGap
acceleratorFont
protected Font acceleratorFont
mouseInputListener
protected MouseInputListener mouseInputListener
menuDragMouseListener
protected MenuDragMouseListener menuDragMouseListener
menuKeyListener
protected MenuKeyListener menuKeyListener
propertyChangeListener
protected PropertyChangeListenerpropertyChangeListener
-
PropertyChangeListener returned from createPropertyChangeListener. You should not need to access this field, rather if you want to customize the PropertyChangeListener override createPropertyChangeListener.
-
Since:
-
1.6
-
See Also:
-
createPropertyChangeListener(javax.swing.JComponent)
arrowIcon
protected Icon arrowIcon
checkIcon
protected Icon checkIcon
oldBorderPainted
protected boolean oldBorderPainted
BasicMenuItemUI
public BasicMenuItemUI()
createUI
public static ComponentUI createUI(JComponent c)
-
installUI
public void installUI(JComponent c)
-
Description copied from class:
ComponentUI
-
Configures the specified component appropriate for the look and feel. This method is invoked when the ComponentUI instance is being installed as the UI delegate on the specified component. This method should completely configure the component for the look and feel, including the following:
-
Install any default property values for color, fonts, borders, icons, opacity, etc. on the component. Whenever possible, property values initialized by the client program should
not
be overridden.
-
Install a LayoutManager on the component if necessary.
-
Create/add any required sub-components to the component.
-
Create/install event listeners on the component.
-
Create/install a PropertyChangeListener on the component in order to detect and respond to component property changes appropriately.
-
Install keyboard UI (mnemonics, traversal, etc.) on the component.
-
Initialize any appropriate instance data.
-
-
Overrides:
-
installUI
in class
ComponentUI
-
-
Parameters:
-
c - the component where this UI delegate is being installed
-
See Also:
-
ComponentUI.uninstallUI(javax.swing.JComponent)
,
JComponent.setUI(javax.swing.plaf.ComponentUI)
,
JComponent.updateUI()
installDefaults
protected void installDefaults()
-
installComponents
protected void installComponents(JMenuItem menuItem)
-
-
Since:
-
1.3
getPropertyPrefix
protected String getPropertyPrefix()
-
installListeners
protected void installListeners()
-
installKeyboardActions
protected void installKeyboardActions()
-
uninstallUI
public void uninstallUI(JComponent c)
-
Description copied from class:
ComponentUI
-
Reverses configuration which was done on the specified component during installUI. This method is invoked when this UIComponent instance is being removed as the UI delegate for the specified component. This method should undo the configuration performed in installUI, being careful to leave the JComponent instance in a clean state (no extraneous listeners, look-and-feel-specific property objects, etc.). This should include the following:
-
Remove any UI-set borders from the component.
-
Remove any UI-set layout managers on the component.
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Remove any UI-added sub-components from the component.
-
Remove any UI-added event/property listeners from the component.
-
Remove any UI-installed keyboard UI from the component.
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Nullify any allocated instance data objects to allow for GC.
-
-
Overrides:
-
uninstallUI
in class
ComponentUI
-
-
Parameters:
-
c - the component from which this UI delegate is being removed; this argument is often ignored, but might be used if the UI object is stateless and shared by multiple components
-
See Also:
-
ComponentUI.installUI(javax.swing.JComponent)
,
JComponent.updateUI()
uninstallDefaults
protected void uninstallDefaults()
-
uninstallComponents
protected void uninstallComponents(JMenuItem menuItem)
-
-
Since:
-
1.3
uninstallListeners
protected void uninstallListeners()
-
uninstallKeyboardActions
protected void uninstallKeyboardActions()
-
createMouseInputListener
protected MouseInputListener createMouseInputListener(JComponent c)
-
createMenuDragMouseListener
protected MenuDragMouseListener createMenuDragMouseListener(JComponent c)
-
createMenuKeyListener
protected MenuKeyListener createMenuKeyListener(JComponent c)
-
createPropertyChangeListener
protected PropertyChangeListenercreatePropertyChangeListener ( JComponent c)
-
Creates a PropertyChangeListener which will be added to the menu item. If this method returns null then it will not be added to the menu item.
-
-
Returns:
-
an instance of a PropertyChangeListener or null
-
Since:
-
1.6
getMinimumSize
public Dimension getMinimumSize(JComponent c)
-
Description copied from class:
ComponentUI
-
Returns the specified component's minimum size appropriate for the look and feel. If null is returned, the minimum size will be calculated by the component's layout manager instead (this is the preferred approach for any component with a specific layout manager installed). The default implementation of this method invokes getPreferredSize and returns that value.
-
-
Overrides:
-
getMinimumSize
in class
ComponentUI
-
-
Parameters:
-
c - the component whose minimum size is being queried; this argument is often ignored, but might be used if the UI object is stateless and shared by multiple components
-
Returns:
-
a Dimension object or null
-
See Also:
-
JComponent.getMinimumSize()
,
LayoutManager.minimumLayoutSize(java.awt.Container)
,
ComponentUI.getPreferredSize(javax.swing.JComponent)
getPreferredSize
public Dimension getPreferredSize(JComponent c)
-
Description copied from class:
ComponentUI
-
Returns the specified component's preferred size appropriate for the look and feel. If null is returned, the preferred size will be calculated by the component's layout manager instead (this is the preferred approach for any component with a specific layout manager installed). The default implementation of this method returns null.
-
-
Overrides:
-
getPreferredSize
in class
ComponentUI
-
-
Parameters:
-
c - the component whose preferred size is being queried; this argument is often ignored, but might be used if the UI object is stateless and shared by multiple components
-
See Also:
-
JComponent.getPreferredSize()
,
LayoutManager.preferredLayoutSize(java.awt.Container)
getMaximumSize
public Dimension getMaximumSize(JComponent c)
-
Description copied from class:
ComponentUI
-
Returns the specified component's maximum size appropriate for the look and feel. If null is returned, the maximum size will be calculated by the component's layout manager instead (this is the preferred approach for any component with a specific layout manager installed). The default implementation of this method invokes getPreferredSize and returns that value.
-
-
Overrides:
-
getMaximumSize
in class
ComponentUI
-
-
Parameters:
-
c - the component whose maximum size is being queried; this argument is often ignored, but might be used if the UI object is stateless and shared by multiple components
-
Returns:
-
a Dimension object or null
-
See Also:
-
JComponent.getMaximumSize()
,
LayoutManager2.maximumLayoutSize(java.awt.Container)
getPreferredMenuItemSize
protected Dimension getPreferredMenuItemSize(JComponent c,
Icon checkIcon,
Icon arrowIcon,
int defaultTextIconGap)
-
update
public void update(Graphics g,
JComponent c)
-
We draw the background in paintMenuItem() so override update (which fills the background of opaque components by default) to just call paint().
-
-
Overrides:
-
update
in class
ComponentUI
-
-
Parameters:
-
g - the Graphics context in which to paint
-
c - the component being painted; this argument is often ignored, but might be used if the UI object is stateless and shared by multiple components
-
See Also:
-
ComponentUI.paint(java.awt.Graphics, javax.swing.JComponent)
,
JComponent.paintComponent(java.awt.Graphics)
paint
public void paint(Graphics g,
JComponent c)
-
Description copied from class:
ComponentUI
-
Paints the specified component appropriate for the look and feel. This method is invoked from the ComponentUI.update method when the specified component is being painted. Subclasses should override this method and use the specified Graphics object to render the content of the component.
-
-
Overrides:
-
paint
in class
ComponentUI
-
-
Parameters:
-
g - the Graphics context in which to paint
-
c - the component being painted; this argument is often ignored, but might be used if the UI object is stateless and shared by multiple components
-
See Also:
-
ComponentUI.update(java.awt.Graphics, javax.swing.JComponent)
paintMenuItem
protected void paintMenuItem(Graphics g,
JComponent c,
Icon checkIcon,
Icon arrowIcon,
Color background,
Color foreground,
int defaultTextIconGap)
-
paintBackground
protected void paintBackground(Graphics g,
JMenuItem menuItem,
Color bgColor)
-
Draws the background of the menu item.
-
-
Parameters:
-
g - the paint graphics
-
menuItem - menu item to be painted
-
bgColor - selection background color
-
Since:
-
1.4
paintText
protected void paintText(Graphics g,
JMenuItem menuItem,
Rectangle textRect,
String text)
-
Renders the text of the current menu item.
-
-
Parameters:
-
g - graphics context
-
menuItem - menu item to render
-
textRect - bounding rectangle for rendering the text
-
text - string to render
-
Since:
-
1.4
getPath
public MenuElement[] getPath()
-
doClick
protected void doClick(MenuSelectionManager msm)
-
Call this method when a menu item is to be activated. This method handles some of the details of menu item activation such as clearing the selected path and messaging the JMenuItem's doClick() method.
-
-
Parameters:
-
msm - A MenuSelectionManager. The visual feedback and internal bookkeeping tasks are delegated to this MenuSelectionManager. If null is passed as this argument, the MenuSelectionManager.defaultManager is used.
-
Since:
-
1.4
-
See Also:
-
MenuSelectionManager
,
AbstractButton.doClick(int)