org.jgraph.plaf.basic

Class BasicGraphUI.MouseHandler

public class BasicGraphUI.MouseHandler extends MouseAdapter implements MouseMotionListener, Serializable

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

Field Summary
protected CellView	cell
protected Object	handler
protected Cursor	previousCursor

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.

Field Detail

previousCursor

protected transient Cursor previousCursor

Method Detail

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

isDescendant

protected boolean isDescendant(CellView parentView, CellView childView)

mouseMoved

public void mouseMoved(MouseEvent e)

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

mousePressed

public void mousePressed(MouseEvent e)

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

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.