org.jgraph.graph
Class GraphTransferHandler

java.lang.Object
  javax.swing.TransferHandler
      org.jgraph.graph.GraphTransferHandler

All Implemented Interfaces:

Serializable

public class GraphTransferHandler

extends TransferHandler

See Also:

Serialized Form

Field Summary

protected boolean	alwaysReceiveAsCopyAction Controls if all inserts should be handled as external drops even if all cells are already in the graph model.
protected Object	in
protected int	inCount
protected Object	out

Fields inherited from class javax.swing.TransferHandler

COPY, COPY_OR_MOVE, MOVE, NONE

Constructor Summary

GraphTransferHandler()

Method Summary

boolean	canImport(JComponent comp, DataFlavor[] flavors)
protected GraphTransferable	create(JGraph graph, Object[] cells, Map viewAttributes, Rectangle2D bounds, ConnectionSet cs, ParentMap pm)
protected Transferable	createTransferable(JComponent c)
protected Transferable	createTransferable(JGraph graph, Object[] cells)
Transferable	createTransferableForGraph(JGraph graph)
protected void	exportDone(JComponent comp, Transferable data, int action)
protected Point2D	getInsertionOffset(JGraph graph, int inCount, Rectangle2D bounds) Hook method to determine offset of cells cloned via the clipboard
int	getSourceActions(JComponent c)
protected void	handleExternalDrop(JGraph graph, Object[] cells, Map nested, ConnectionSet cs, ParentMap pm, double dx, double dy)
boolean	importData(JComponent comp, Transferable t)
protected boolean	importDataImpl(JComponent comp, Transferable t)
boolean	isAlwaysReceiveAsCopyAction()
void	setAlwaysReceiveAsCopyAction(boolean alwaysReceiveAsCopyAction)

Methods inherited from class javax.swing.TransferHandler

exportAsDrag, exportToClipboard, getCopyAction, getCutAction, getPasteAction, getVisualRepresentation

Methods inherited from class java.lang.Object

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

Field Detail

alwaysReceiveAsCopyAction

protected boolean alwaysReceiveAsCopyAction

Controls if all inserts should be handled as external drops even if all cells are already in the graph model. This is useful if the enclosing component does not allow moving.

out

protected Object out

in

protected Object in

inCount

protected int inCount

Constructor Detail

GraphTransferHandler

public GraphTransferHandler()

Method Detail

canImport

public boolean canImport(JComponent comp,
                         DataFlavor[] flavors)

createTransferableForGraph

public Transferable createTransferableForGraph(JGraph graph)

createTransferable

protected Transferable createTransferable(JComponent c)

createTransferable

protected Transferable createTransferable(JGraph graph,
                                          Object[] cells)

create

protected GraphTransferable create(JGraph graph,
                                   Object[] cells,
                                   Map viewAttributes,
                                   Rectangle2D bounds,
                                   ConnectionSet cs,
                                   ParentMap pm)

exportDone

protected void exportDone(JComponent comp,
                          Transferable data,
                          int action)

getSourceActions

public int getSourceActions(JComponent c)

importData

public boolean importData(JComponent comp,
                          Transferable t)

getInsertionOffset

protected Point2D getInsertionOffset(JGraph graph,
                                     int inCount,
                                     Rectangle2D bounds)

Hook method to determine offset of cells cloned via the clipboard

Parameters:

graph - the graph the insertion is occurring on

inCount - the number of time the insert has been applied

bounds - the bounds of the transferred graph

Returns:

the offset from the cloned cell(s)

handleExternalDrop

protected void handleExternalDrop(JGraph graph,
                                  Object[] cells,
                                  Map nested,
                                  ConnectionSet cs,
                                  ParentMap pm,
                                  double dx,
                                  double dy)

importDataImpl

protected boolean importDataImpl(JComponent comp,
                                 Transferable t)

isAlwaysReceiveAsCopyAction

public boolean isAlwaysReceiveAsCopyAction()

Returns:

Returns the alwaysReceiveAsCopyAction.

setAlwaysReceiveAsCopyAction

public void setAlwaysReceiveAsCopyAction(boolean alwaysReceiveAsCopyAction)

Parameters:

alwaysReceiveAsCopyAction - The alwaysReceiveAsCopyAction to set.