com.alee.extended.tree

Class NodesDropHandler<N extends UniqueNode,T extends WebTree<N>>

java.lang.Object

com.alee.extended.tree.NodesDropHandler<N,T>

Type Parameters:

N - nodes type

T - tree type

All Implemented Interfaces:

TreeDropHandler<N,T>

public class NodesDropHandler<N extends UniqueNode,T extends WebTree<N>>
extends java.lang.Object
implements TreeDropHandler<N,T>

Tree nodes drop handler implementation.

Field Summary

Fields

Modifier and Type	Field and Description
protected java.util.ArrayList<java.awt.datatransfer.DataFlavor>	flavors Supported flavors.

Constructor Summary

Constructors

Constructor and Description
NodesDropHandler()

Method Summary

Modifier and Type	Method and Description
protected boolean	canBeDropped(T tree, java.util.List<N> nodes, N dropLocation, int dropIndex) Returns whether nodes can be dropped to the specified location and index or not.
boolean	canDrop(javax.swing.TransferHandler.TransferSupport support, T tree, N destination) Returns whether or not drop operation can be performed on the specified destination node.
java.util.List<N>	getDroppedNodes(javax.swing.TransferHandler.TransferSupport support, T tree, N destination) Returns list of dropped nodes.
java.util.List<java.awt.datatransfer.DataFlavor>	getSupportedFlavors() Returns list of data flavors supported by this drop handler.

Methods inherited from class java.lang.Object

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

Field Detail

flavors

protected java.util.ArrayList<java.awt.datatransfer.DataFlavor> flavors

Supported flavors.

Constructor Detail

NodesDropHandler

public NodesDropHandler()

Method Detail

getSupportedFlavors

public java.util.List<java.awt.datatransfer.DataFlavor> getSupportedFlavors()

Description copied from interface: TreeDropHandler

Returns list of data flavors supported by this drop handler. These will be used to filter out drop handlers for each specific drop operation.

Specified by:

getSupportedFlavors in interface TreeDropHandler<N extends UniqueNode,T extends WebTree<N>>

Returns:

list of data flavors supported by this drop handler

canDrop

public boolean canDrop(javax.swing.TransferHandler.TransferSupport support,
                       T tree,
                       N destination)

Description copied from interface: TreeDropHandler

Returns whether or not drop operation can be performed on the specified destination node.

Specified by:

canDrop in interface TreeDropHandler<N extends UniqueNode,T extends WebTree<N>>

Parameters:

support - transfer support data

tree - destination tree

destination - drop destination node

Returns:

true if drop operation can be performed on the specified destination node, false otherwise

canBeDropped

protected boolean canBeDropped(T tree,
                               java.util.List<N> nodes,
                               N dropLocation,
                               int dropIndex)

Returns whether nodes can be dropped to the specified location and index or not.

Parameters:

tree - destination tree

nodes - list of nodes to drop

dropLocation - node onto which drop was performed

dropIndex - drop index if dropped between nodes under dropLocation node or -1 if dropped directly onto dropLocation node

Returns:

true if nodes can be dropped to the specified location and index, false otherwise

getDroppedNodes

public java.util.List<N> getDroppedNodes(javax.swing.TransferHandler.TransferSupport support,
                                         T tree,
                                         N destination)

Description copied from interface: TreeDropHandler

Returns list of dropped nodes. Those might be either extracted from or created based on transferred data. This method basically maps any kind of transferred data into tree nodes.

Specified by:

getDroppedNodes in interface TreeDropHandler<N extends UniqueNode,T extends WebTree<N>>

Parameters:

support - transfer support data

tree - destination tree

destination - drop destination node

Returns:

list of dropped nodes