org.jgraph.graph
Class GraphTransferable

java.lang.Object
  org.jgraph.plaf.basic.BasicTransferable
      org.jgraph.graph.GraphTransferable

All Implemented Interfaces:

ClipboardOwner, Transferable, Serializable, UIResource

public class GraphTransferable
extends BasicTransferable
implements Serializable, ClipboardOwner

An object that represents the clipboard contents for a graph selection. The object has three representations:

1. Richer: The cells, view attributes and connections for this selection are stored as separate datastructures, which can be inserted using the GraphModel.insert() method. 2. HTML: If one cell is selected, the userObject is returned as HTML. 3. Plain: The userObject of the selected cell is returned as plain text.

Version:

1.0 1/1/02

Author:

Gaudenz Alder

See Also:

Serialized Form

Field Summary

protected Map	attributeMap (Cell, Map) entries that hold the view attributes for the cells.
protected Rectangle	bounds Rectangle that defines the former bounds of the views.
protected Object[]	cells Selected cells.
protected ConnectionSet	cs Object that describes the connection between cells.
static DataFlavor	dataFlavor Local Machine Reference Data Flavor.
protected ParentMap	pm Object that describes the group structure between cells.

Constructor Summary

GraphTransferable(Object[] cells, Map attrMap, Rectangle bounds, ConnectionSet cs, ParentMap pm)
Constructs a new transferable selection for cells, csand attrMap.

Method Summary

Map	getAttributeMap() Returns a map of (GraphCell, Map)-pairs that represent the view attributes for the respecive cells.
Rectangle	getBounds()
Object[]	getCells() Returns the cells that represent the selection.
ConnectionSet	getConnectionSet() Returns the connections between cells (and possibly other, unselected cells).
String	getHTMLData() Fetch the data in a text/html format.
ParentMap	getParentMap()
String	getPlainData() Fetch the data in a text/plain format.
Object	getRicherData(DataFlavor flavor) Fetch the data in a jvm-localreference format.
DataFlavor[]	getRicherFlavors() Returns the jvm-localreference flavors of the transferable.
boolean	isHTMLSupported() Returns true if the transferable support a text/html format.
boolean	isPlainSupported() Returns true if the transferable support a text/plain format.
void	lostOwnership(Clipboard clip, Transferable contents)

Methods inherited from class org.jgraph.plaf.basic.BasicTransferable

getTransferData, getTransferDataFlavors, isDataFlavorSupported, isHTMLFlavor, isPlainFlavor, isRicherFlavor, isStringFlavor

Methods inherited from class java.lang.Object

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

Field Detail

dataFlavor

public static DataFlavor dataFlavor

Local Machine Reference Data Flavor.

cells

protected Object[] cells

Selected cells.

cs

protected ConnectionSet cs

Object that describes the connection between cells.

pm

protected ParentMap pm

Object that describes the group structure between cells.

attributeMap

protected Map attributeMap

(Cell, Map) entries that hold the view attributes for the cells.

bounds

protected Rectangle bounds

Rectangle that defines the former bounds of the views.

Constructor Detail

GraphTransferable

public GraphTransferable(Object[] cells,
                         Map attrMap,
                         Rectangle bounds,
                         ConnectionSet cs,
                         ParentMap pm)

Constructs a new transferable selection for cells, csand attrMap.

Method Detail

getCells

public Object[] getCells()

Returns the cells that represent the selection.

getConnectionSet

public ConnectionSet getConnectionSet()

Returns the connections between cells (and possibly other, unselected cells).

getParentMap

public ParentMap getParentMap()

getAttributeMap

public Map getAttributeMap()

Returns a map of (GraphCell, Map)-pairs that represent the view attributes for the respecive cells.

getBounds

public Rectangle getBounds()

lostOwnership

public void lostOwnership(Clipboard clip,
                          Transferable contents)

Specified by:

lostOwnership in interface ClipboardOwner

getRicherFlavors

public DataFlavor[] getRicherFlavors()

Returns the jvm-localreference flavors of the transferable.

Overrides:

getRicherFlavors in class BasicTransferable

getRicherData

public Object getRicherData(DataFlavor flavor)
                     throws UnsupportedFlavorException

Fetch the data in a jvm-localreference format.

Overrides:

getRicherData in class BasicTransferable

Throws:

UnsupportedFlavorException

isPlainSupported

public boolean isPlainSupported()

Returns true if the transferable support a text/plain format.

Overrides:

isPlainSupported in class BasicTransferable

getPlainData

public String getPlainData()

Fetch the data in a text/plain format.

Overrides:

getPlainData in class BasicTransferable

isHTMLSupported

public boolean isHTMLSupported()

Returns true if the transferable support a text/html format.

Overrides:

isHTMLSupported in class BasicTransferable

getHTMLData

public String getHTMLData()

Fetch the data in a text/html format.

Overrides:

getHTMLData in class BasicTransferable