- java.lang.Object
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- javax.swing.plaf.basic.BasicMenuUI.MouseInputHandler
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- All Implemented Interfaces:
- MouseListener, MouseMotionListener, EventListener, MouseInputListener
- Enclosing class:
- BasicMenuUI
protected class BasicMenuUI.MouseInputHandler extends Object implements MouseInputListener
Instantiated and used by a menu item to handle the current menu selection from mouse events. A MouseInputHandler processes and forwards all mouse events to a shared instance of the MenuSelectionManager.This class is protected so that it can be subclassed by other look and feels to implement their own mouse handling behavior. All overridden methods should call the parent methods so that the menu selection is correct.
- Since:
- 1.4
- See Also:
MenuSelectionManager
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Constructor Summary
Constructors Modifier Constructor and Description protected
BasicMenuUI.MouseInputHandler()
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Method Summary
Methods Modifier and Type Method and Description void
mouseClicked(MouseEvent e)
Invoked when the mouse button has been clicked (pressed and released) on a component.void
mouseDragged(MouseEvent e)
Invoked when a mouse button is pressed on the menu and then dragged.void
mouseEntered(MouseEvent e)
Invoked when the cursor enters the menu.void
mouseExited(MouseEvent e)
Invoked when the mouse exits a component.void
mouseMoved(MouseEvent e)
Invoked when the mouse cursor has been moved onto a component but no buttons have been pushed.void
mousePressed(MouseEvent e)
Invoked when the mouse has been clicked on the menu.void
mouseReleased(MouseEvent e)
Invoked when the mouse has been released on the menu.
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Method Detail
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mouseClicked
public void mouseClicked(MouseEvent e)
Description copied from interface:MouseListener
Invoked when the mouse button has been clicked (pressed and released) on a component.- Specified by:
mouseClicked
in interfaceMouseListener
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mousePressed
public void mousePressed(MouseEvent e)
Invoked when the mouse has been clicked on the menu. This method clears or sets the selection path of the MenuSelectionManager.- Specified by:
mousePressed
in interfaceMouseListener
- Parameters:
e
- the mouse event
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mouseReleased
public void mouseReleased(MouseEvent e)
Invoked when the mouse has been released on the menu. Delegates the mouse event to the MenuSelectionManager.- Specified by:
mouseReleased
in interfaceMouseListener
- Parameters:
e
- the mouse event
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mouseEntered
public void mouseEntered(MouseEvent e)
Invoked when the cursor enters the menu. This method sets the selected path for the MenuSelectionManager and handles the case in which a menu item is used to pop up an additional menu, as in a hierarchical menu system.- Specified by:
mouseEntered
in interfaceMouseListener
- Parameters:
e
- the mouse event; not used
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mouseExited
public void mouseExited(MouseEvent e)
Description copied from interface:MouseListener
Invoked when the mouse exits a component.- Specified by:
mouseExited
in interfaceMouseListener
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mouseDragged
public void mouseDragged(MouseEvent e)
Invoked when a mouse button is pressed on the menu and then dragged. Delegates the mouse event to the MenuSelectionManager.- Specified by:
mouseDragged
in interfaceMouseMotionListener
- Parameters:
e
- the mouse event- See Also:
MouseMotionListener.mouseDragged(java.awt.event.MouseEvent)
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mouseMoved
public void mouseMoved(MouseEvent e)
Description copied from interface:MouseMotionListener
Invoked when the mouse cursor has been moved onto a component but no buttons have been pushed.- Specified by:
mouseMoved
in interfaceMouseMotionListener
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