org.jgraph.plaf.basic
Class BasicGraphUI.MouseHandler

java.lang.Object
  java.awt.event.MouseAdapter
      org.jgraph.plaf.basic.BasicGraphUI.MouseHandler

All Implemented Interfaces:

EventListener, MouseListener, MouseMotionListener, Serializable

Enclosing class:

BasicGraphUI

public class BasicGraphUI.MouseHandler

extends MouseAdapter

implements MouseMotionListener, Serializable

TreeMouseListener is responsible for updating the selection based on mouse events.

See Also:

Serialized Form

Field Summary

protected CellView	cell
protected Object	handler
protected Cursor	previousCursor

Constructor Summary

BasicGraphUI.MouseHandler()

Method Summary

protected boolean	handleEditTrigger(Object cell, MouseEvent e) Handles edit trigger by starting the edit and return true if the editing has already started.
protected boolean	isDescendant(CellView parentView, CellView childView)
void	mouseDragged(MouseEvent e)
void	mouseMoved(MouseEvent e) Invoked when the mouse pointer has been moved on a component (with no buttons down).
void	mousePressed(MouseEvent e) Invoked when a mouse button has been pressed on a component.
void	mouseReleased(MouseEvent e)
protected void	postProcessSelection(MouseEvent e, Object cell, boolean wasSelected) Invoked after a cell has been selected in the mouseReleased method.

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

cell

protected CellView cell

handler

protected Object handler

previousCursor

protected transient Cursor previousCursor

Constructor Detail

BasicGraphUI.MouseHandler

public BasicGraphUI.MouseHandler()

Method Detail

mousePressed

public void mousePressed(MouseEvent e)

Invoked when a mouse button has been pressed on a component.

Specified by:

mousePressed in interface MouseListener

handleEditTrigger

protected boolean handleEditTrigger(Object cell,
                                    MouseEvent e)

Handles edit trigger by starting the edit and return true if the editing has already started.

Parameters:

cell - the cell being edited

e - the mouse event triggering the edit

Returns:

true if the editing has already started

mouseDragged

public void mouseDragged(MouseEvent e)

Specified by:

mouseDragged in interface MouseMotionListener

mouseMoved

public void mouseMoved(MouseEvent e)

Invoked when the mouse pointer has been moved on a component (with no buttons down).

Specified by:

mouseMoved in interface MouseMotionListener

mouseReleased

public void mouseReleased(MouseEvent e)

Specified by:

mouseReleased in interface MouseListener

postProcessSelection

protected void postProcessSelection(MouseEvent e,
                                    Object cell,
                                    boolean wasSelected)

Invoked after a cell has been selected in the mouseReleased method. This can be used to do something interesting if the cell was already selected, in which case this implementation selects the parent. Override if you want different behaviour, such as start editing.

isDescendant

protected boolean isDescendant(CellView parentView,
                               CellView childView)