org.openide.awt
Class MouseUtils.PopupMouseAdapter

java.lang.Object
  |
  +--java.awt.event.MouseAdapter
        |
        +--org.openide.awt.MouseUtils.PopupMouseAdapter

All Implemented Interfaces:

EventListener, MouseListener

Enclosing class:

MouseUtils

public abstract static class MouseUtils.PopupMouseAdapter

extends MouseAdapter

The PopupMouseAdapter implements a better popup menu invocation mechanism. It should be used instead of invoking the popup in mouseClicked because the mouseClicked does not work as "often" as it should (i.e. sometimes it is not called). The threshold that can be passed into the constructor is the "sensitivity" of the mouse movement - if the mouse move delta position (between mouse press and release) extends the threshold, the menu should not be shown. The default value is 5 which seems as a reasonable value for the context menu invocation to be comfort for the user.

Field Summary

static int

DEFAULT_THRESHOLD The default threshold value

Constructor Summary

MouseUtils.PopupMouseAdapter()
Creates a new PopupMouseAdapter with default threshold

MouseUtils.PopupMouseAdapter(int threshold)
Creates a new PopupMouseAdapter with specified threshold

Method Summary

void	mousePressed(MouseEvent e)
void	mouseReleased(MouseEvent e)
protected abstract void	showPopup(MouseEvent evt) Called when the sequnce of mouse events should lead to actual showing of the popup menu.

Methods inherited from class java.awt.event.MouseAdapter

mouseClicked, mouseEntered, mouseExited

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_THRESHOLD

public static final int DEFAULT_THRESHOLD

The default threshold value

Constructor Detail

MouseUtils.PopupMouseAdapter

public MouseUtils.PopupMouseAdapter()

Creates a new PopupMouseAdapter with default threshold

MouseUtils.PopupMouseAdapter

public MouseUtils.PopupMouseAdapter(int threshold)

Creates a new PopupMouseAdapter with specified threshold

Parameters:

threshold - The threshold to be used

Method Detail

mousePressed

public void mousePressed(MouseEvent e)

Overrides:

mousePressed in class MouseAdapter

mouseReleased

public void mouseReleased(MouseEvent e)

Overrides:

mouseReleased in class MouseAdapter

showPopup

protected abstract void showPopup(MouseEvent evt)

Called when the sequnce of mouse events should lead to actual showing of the popup menu. Should be redefined to show the menu. param evt The mouse release event - should be used to obtain the position of the popup menu