org.jgraph.graph
Class EdgeView.EdgeHandle

java.lang.Object
  org.jgraph.graph.EdgeView.EdgeHandle

All Implemented Interfaces:

Serializable, CellHandle

Enclosing class:

EdgeView

public class EdgeView.EdgeHandle
extends Object
implements CellHandle, Serializable

See Also:

Serialized Form

Field Summary

protected Point	currentPoint
protected EdgeView	edge
protected boolean	firstOverlayCall
protected JGraph	graph
protected boolean	isEdgeConnectable
protected boolean	label
protected Rectangle	loc
protected EdgeView	orig
protected Rectangle[]	r
protected EdgeView	relevantEdge
protected boolean	source
protected boolean	target

Constructor Summary

EdgeView.EdgeHandle(EdgeView edge, GraphContext ctx)

Method Summary

protected ConnectionSet	createConnectionSet(EdgeView view, Object edge, boolean verbose)
protected void	invalidate()
protected boolean	isEditing()
protected boolean	isSourceEditing()
protected boolean	isTargetEditing()
void	mouseDragged(MouseEvent event) Messagedwhen the user drags the selection.
void	mouseMoved(MouseEvent event) Invoked when the mouse pointer has been moved on a component (with no buttons down).
void	mousePressed(MouseEvent event) Messaged when a drag gesture is recogniced.
void	mouseReleased(MouseEvent e) Messaged when the drag operation has terminated with a drop.
void	overlay(Graphics g) Paint the handle on the given graphics object during mouse operations.
void	paint(Graphics g) Paint the handle on the given graphics object once.
protected void	paintPort(Graphics g, CellView p)
protected void	reloadPoints(EdgeView edge)
protected boolean	snap(boolean source, Point point)

Methods inherited from class java.lang.Object

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

Field Detail

graph

protected JGraph graph

edge

protected EdgeView edge

orig

protected EdgeView orig

label

protected boolean label

source

protected boolean source

target

protected boolean target

currentPoint

protected Point currentPoint

r

protected transient Rectangle[] r

loc

protected transient Rectangle loc

firstOverlayCall

protected boolean firstOverlayCall

isEdgeConnectable

protected boolean isEdgeConnectable

relevantEdge

protected EdgeView relevantEdge

Constructor Detail

EdgeView.EdgeHandle

public EdgeView.EdgeHandle(EdgeView edge,
                           GraphContext ctx)

Method Detail

reloadPoints

protected void reloadPoints(EdgeView edge)

paint

public void paint(Graphics g)

Description copied from interface: CellHandle

Paint the handle on the given graphics object once.

Specified by:

paint in interface CellHandle

Parameters:

g - the graphics object to paint the handle on

overlay

public void overlay(Graphics g)

Description copied from interface: CellHandle

Paint the handle on the given graphics object during mouse operations.

Specified by:

overlay in interface CellHandle

Parameters:

g - the graphics object to paint the handle on

paintPort

protected void paintPort(Graphics g,
                         CellView p)

snap

protected boolean snap(boolean source,
                       Point point)

isSourceEditing

protected boolean isSourceEditing()

isTargetEditing

protected boolean isTargetEditing()

isEditing

protected boolean isEditing()

mouseMoved

public void mouseMoved(MouseEvent event)

Invoked when the mouse pointer has been moved on a component (with no buttons down).

Specified by:

mouseMoved in interface CellHandle

Parameters:

event - the point for which the cursor is returned

mousePressed

public void mousePressed(MouseEvent event)

Description copied from interface: CellHandle

Messaged when a drag gesture is recogniced.

Specified by:

mousePressed in interface CellHandle

Parameters:

event - the drag gesture event to be processed

mouseDragged

public void mouseDragged(MouseEvent event)

Description copied from interface: CellHandle

Messagedwhen the user drags the selection. The Controller is responsible to determine whether the mouse is inside the parent graph or not.

Specified by:

mouseDragged in interface CellHandle

Parameters:

event - the drag event to be processed

mouseReleased

public void mouseReleased(MouseEvent e)

Description copied from interface: CellHandle

Messaged when the drag operation has terminated with a drop.

Specified by:

mouseReleased in interface CellHandle

Parameters:

e - the drop event to be processed

createConnectionSet

protected ConnectionSet createConnectionSet(EdgeView view,
                                            Object edge,
                                            boolean verbose)

invalidate

protected void invalidate()