com.jgraph.graph
Class EdgeView.EdgeHandle

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

All Implemented Interfaces:

CellHandle, java.io.Serializable

Enclosing class:

EdgeView

public class EdgeView.EdgeHandle

extends java.lang.Object

implements CellHandle, java.io.Serializable

See Also:

Serialized Form

Field Summary

protected EdgeView	edge
protected boolean	firstOverlayCall
protected JGraph	graph
protected int	index
protected boolean	isEdgeConnectable
protected static int	LABEL_INDEX
protected java.awt.Rectangle	loc
protected static int	NO_INDEX
protected java.awt.Rectangle[]	r
protected EdgeView	relevantEdge

Constructor Summary

EdgeView.EdgeHandle(EdgeView edge, GraphContext ctx)

Method Summary

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

Methods inherited from class java.lang.Object

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

Field Detail

NO_INDEX

protected static final transient int NO_INDEX

See Also:

Constant Field Values

LABEL_INDEX

protected static final transient int LABEL_INDEX

See Also:

Constant Field Values

graph

protected JGraph graph

edge

protected EdgeView edge

index

protected transient int index

r

protected transient java.awt.Rectangle[] r

loc

protected transient java.awt.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(java.awt.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(java.awt.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(java.awt.Graphics g,
                         PortView p)

isSourceEditing

protected boolean isSourceEditing()

snap

protected boolean snap(boolean source,
                       java.awt.Point point)

isTargetEditing

protected boolean isTargetEditing()

mouseMoved

public void mouseMoved(java.awt.event.MouseEvent event)

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

Specified by:

mouseMoved in interface CellHandle

mousePressed

public void mousePressed(java.awt.event.MouseEvent event)

Description copied from interface: CellHandle

Messaged when a drag gesture is recogniced.

Specified by:

mousePressed in interface CellHandle

mouseDragged

public void mouseDragged(java.awt.event.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(java.awt.event.MouseEvent e)

Description copied from interface: CellHandle

Messaged when the drag operation has terminated with a drop.

Specified by:

mouseReleased in interface CellHandle

invalidate

protected void invalidate()