com.alee.extended.tree

Interface TreeDropHandler<N extends UniqueNode,T extends WebTree<N>>

Type Parameters:

N - nodes type

T - tree type

All Known Implementing Classes:

NodesDropHandler

public interface TreeDropHandler<N extends UniqueNode,T extends WebTree<N>>

Base for any tree drop operation handler.

See Also:

AbstractTreeTransferHandler.getSupportedDropHandlers(javax.swing.TransferHandler.TransferSupport)

Method Summary

Modifier and Type	Method and Description
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.

Method Detail

getSupportedFlavors

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

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

Returns:

list of data flavors supported by this drop handler

canDrop

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.

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

getDroppedNodes

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

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.

Parameters:

support - transfer support data

tree - destination tree

destination - drop destination node

Returns:

list of dropped nodes