org.jgraph.graph

Class PortView

public class PortView extends AbstractCellView

The default implementation of a port view.

Field Summary
static boolean	allowPortMagic Controls if port magic should be allowed.
protected CellView	lastParent Cache of the last valid parent.
static PortRenderer	renderer Renderer for the class.
static int	SIZE Default size for all ports is 6.

Constructor Summary
	PortView() Constructs an empty portview.
	PortView(Object cell) Constructs a view that holds a reference to the specified cell, anchor and parent vertex.

Method Summary
Rectangle2D	getBounds() Returns the bounds for the port view.
CellHandle	getHandle(GraphContext context) Returns `null`.
Point2D	getLocation() Shortcut method to getLocation(null, null)
Point2D	getLocation(EdgeView edge) For backwards compatibility.
Point2D	getLocation(EdgeView edge, Point2D nearest) Returns the point that the port represents with respect to `edge` and `point`, which is the nearest point to this port view on the edge.
CellView	getParentView() This method ensures a non-null value.
int	getPortSize()
CellViewRenderer	getRenderer() Returns a renderer for the class.
void	setPortSize(int size)
protected boolean	shouldInvokePortMagic(EdgeView edge) Subclassers can override this to decide whether or not "port magic" should appear on a given edge.

Field Detail

allowPortMagic

public static boolean allowPortMagic

Controls if port magic should be allowed. Default is true. This is an easy switch to disable port magic for all instances of graphs.

lastParent

protected transient CellView lastParent

Cache of the last valid parent. //FIX: Better solution?

renderer

public static transient PortRenderer renderer

Renderer for the class.

SIZE

public static transient int SIZE

Default size for all ports is 6.

Constructor Detail

PortView

public PortView()

Constructs an empty portview.

PortView

public PortView(Object cell)

Constructs a view that holds a reference to the specified cell, anchor and parent vertex.

Parameters: cell reference to the cell in the model

Method Detail

getBounds

public Rectangle2D getBounds()

Returns the bounds for the port view.

getHandle

public CellHandle getHandle(GraphContext context)

Returns null.

getLocation

public Point2D getLocation()

Shortcut method to getLocation(null, null)

getLocation

public Point2D getLocation(EdgeView edge)

For backwards compatibility.

getLocation

public Point2D getLocation(EdgeView edge, Point2D nearest)

Returns the point that the port represents with respect to edge and point, which is the nearest point to this port view on the edge. edge and point may be null.

This method ensures a non-null value. If the super method returns null then the last valid parent is returned. Note: If a vertex is removed, all ports will be replaced in connected edges. The ports are replaced by the center point of the last valid vertex view.