BasicDropHandler (Starjava Datanode API)

java.lang.Object
- java.awt.dnd.DropTarget
- - uk.ac.starlink.datanode.tree.BasicDropHandler

All Implemented Interfaces:

java.awt.dnd.DropTargetListener, java.io.Serializable, java.util.EventListener
```
public class BasicDropHandler
extends java.awt.dnd.DropTarget
```
Custom DropTarget subclass. This provides basic DropTarget/DropTargetListener functionality for use with components which want to define their own drop behaviour. An instance of this class can be slotted into a JComponent using its Component.setDropTarget(java.awt.dnd.DropTarget) method to override the one which is installed with it (which probably comes from the basic UI).

See Also:

Serialized Form

Nested Class Summary
- Nested classes/interfaces inherited from class java.awt.dnd.DropTarget
  java.awt.dnd.DropTarget.DropTargetAutoScroller

Constructor Summary

Constructors
Constructor and Description

BasicDropHandler(javax.swing.JComponent comp)
Constructs a new drop handler for use with a given component.

Constructors
Constructor and Description
`BasicDropHandler(javax.swing.JComponent comp)` Constructs a new drop handler for use with a given component.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`void`	`dragEnter(java.awt.dnd.DropTargetDragEvent evt)`
`void`	`dragExit(java.awt.dnd.DropTargetEvent evt)`
`void`	`dragOver(java.awt.dnd.DropTargetDragEvent evt)`
`void`	`drop(java.awt.dnd.DropTargetDropEvent evt)`
`protected boolean`	`isDropLocation(java.awt.Point loc)` Indicates whether a given location is permissible for a drop event.

Methods inherited from class java.awt.dnd.DropTarget
addDropTargetListener, addNotify, clearAutoscroll, createDropTargetAutoScroller, createDropTargetContext, dropActionChanged, getComponent, getDefaultActions, getDropTargetContext, getFlavorMap, initializeAutoscrolling, isActive, removeDropTargetListener, removeNotify, setActive, setComponent, setDefaultActions, setFlavorMap, updateAutoscroll

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - BasicDropHandler
```
public BasicDropHandler(javax.swing.JComponent comp)
```
    Constructs a new drop handler for use with a given component.
    
    Parameters:
    
    comp - the component which this drop handler will control
- Method Detail
  - dragEnter
```
public void dragEnter(java.awt.dnd.DropTargetDragEvent evt)
```
    Specified by:
    
    dragEnter in interface java.awt.dnd.DropTargetListener
    
    Overrides:
    
    dragEnter in class java.awt.dnd.DropTarget
  - dragOver
```
public void dragOver(java.awt.dnd.DropTargetDragEvent evt)
```
    Specified by:
    
    dragOver in interface java.awt.dnd.DropTargetListener
    
    Overrides:
    
    dragOver in class java.awt.dnd.DropTarget
  - dragExit
```
public void dragExit(java.awt.dnd.DropTargetEvent evt)
```
    Specified by:
    
    dragExit in interface java.awt.dnd.DropTargetListener
    
    Overrides:
    
    dragExit in class java.awt.dnd.DropTarget
  - drop
```
public void drop(java.awt.dnd.DropTargetDropEvent evt)
```
    Specified by:
    
    drop in interface java.awt.dnd.DropTargetListener
    
    Overrides:
    
    drop in class java.awt.dnd.DropTarget
  - isDropLocation
```
protected boolean isDropLocation(java.awt.Point loc)
```
    Indicates whether a given location is permissible for a drop event.
    
    Parameters:
    
    loc - the point at which a drop might take place
    
    Returns:
    
    true iff it's OK to drop at loc

Class BasicDropHandler

Nested Class Summary

Nested classes/interfaces inherited from class java.awt.dnd.DropTarget

Constructor Summary

Method Summary

Methods inherited from class java.awt.dnd.DropTarget

Methods inherited from class java.lang.Object

Constructor Detail

BasicDropHandler

Method Detail

dragEnter

dragOver

dragExit

drop

isDropLocation