BasicGraphUI.MouseHandler (JGraph v5.12.4.2 API Specification)

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

All Implemented Interfaces:

java.awt.event.MouseListener, java.awt.event.MouseMotionListener, java.awt.event.MouseWheelListener, java.io.Serializable, java.util.EventListener

Enclosing class:

BasicGraphUI
```
public class BasicGraphUI.MouseHandler
extends java.awt.event.MouseAdapter
implements java.awt.event.MouseMotionListener, java.io.Serializable
```
TreeMouseListener is responsible for updating the selection based on mouse events.

See Also:

Serialized Form

Field Summary

Fields
Modifier and Type Field and Description

protected CellView cell

protected java.lang.Object handler

protected java.awt.Cursor previousCursor

Fields
Modifier and Type	Field and Description
`protected CellView`	`cell`
`protected java.lang.Object`	`handler`
`protected java.awt.Cursor`	`previousCursor`

Constructor Summary

Constructors
Constructor and Description

MouseHandler()

Constructors
Constructor and Description
`MouseHandler()`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`protected boolean`	`handleEditTrigger(java.lang.Object cell, java.awt.event.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(java.awt.event.MouseEvent e)`
`void`	`mouseMoved(java.awt.event.MouseEvent e)` Invoked when the mouse pointer has been moved on a component (with no buttons down).
`void`	`mousePressed(java.awt.event.MouseEvent e)` Invoked when a mouse button has been pressed on a component.
`void`	`mouseReleased(java.awt.event.MouseEvent e)`
`protected void`	`postProcessSelection(java.awt.event.MouseEvent e, java.lang.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, mouseWheelMoved

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 java.lang.Object handler
```
  - previousCursor
```
protected transient java.awt.Cursor previousCursor
```
- Constructor Detail
  - MouseHandler
```
public MouseHandler()
```
- Method Detail
  - mousePressed
```
public void mousePressed(java.awt.event.MouseEvent e)
```
    Invoked when a mouse button has been pressed on a component.
    
    Specified by:
    
    mousePressed in interface java.awt.event.MouseListener
    
    Overrides:
    
    mousePressed in class java.awt.event.MouseAdapter
  - handleEditTrigger
```
protected boolean handleEditTrigger(java.lang.Object cell,
                                    java.awt.event.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(java.awt.event.MouseEvent e)
```
    Specified by:
    
    mouseDragged in interface java.awt.event.MouseMotionListener
    
    Overrides:
    
    mouseDragged in class java.awt.event.MouseAdapter
  - mouseMoved
```
public void mouseMoved(java.awt.event.MouseEvent e)
```
    Invoked when the mouse pointer has been moved on a component (with no buttons down).
    
    Specified by:
    
    mouseMoved in interface java.awt.event.MouseMotionListener
    
    Overrides:
    
    mouseMoved in class java.awt.event.MouseAdapter
  - mouseReleased
```
public void mouseReleased(java.awt.event.MouseEvent e)
```
    Specified by:
    
    mouseReleased in interface java.awt.event.MouseListener
    
    Overrides:
    
    mouseReleased in class java.awt.event.MouseAdapter
  - postProcessSelection
```
protected void postProcessSelection(java.awt.event.MouseEvent e,
                                    java.lang.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)
```

Class BasicGraphUI.MouseHandler

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.awt.event.MouseAdapter

Methods inherited from class java.lang.Object

Field Detail

cell

handler

previousCursor

Constructor Detail

MouseHandler

Method Detail

mousePressed

handleEditTrigger

mouseDragged

mouseMoved

mouseReleased

postProcessSelection

isDescendant