org.jgraph.graph
Class VertexView

java.lang.Object
  org.jgraph.graph.AbstractCellView
      org.jgraph.graph.VertexView

All Implemented Interfaces:

Serializable, CellView

public class VertexView
extends AbstractCellView

The default implementation of a vertex view.

See Also:

Serialized Form

Nested Class Summary

static class

VertexView.SizeHandle

Field Summary

protected Rectangle2D	bounds Reference to the bounds attribute
static int[]	defaultCursors Array that holds the cursors for the different control points.
static VertexRenderer	renderer Renderer for the class.
static int[]	xCursors Array that holds the cursors for the different control points.
static int[]	yCursors Array that holds the cursors for the different control points.

Fields inherited from class org.jgraph.graph.AbstractCellView

allAttributes, attributes, cell, cellEditor, childViews, graph, groupBounds, mapper, parent

Constructor Summary

VertexView(Object cell, JGraph graph, CellMapper mapper)
Constructs a vertex view for the specified model object and the specified child views.

Method Summary

Rectangle2D	getBounds() Returns the cached bounds for the vertex.
Rectangle2D	getCachedBounds()
Point2D	getCenterPoint() Returns the center of this vertex.
CellHandle	getHandle(GraphContext context) Returns a cell handle for the view, if the graph and the view are sizeable.
Point2D	getPerimeterPoint(Point2D source, Point2D p) Returns the intersection of the bounding rectangle and the straight line between the source and the specified point p.
CellViewRenderer	getRenderer() Returns a renderer for the class.
void	setCachedBounds(Rectangle2D bounds)
void	update() Overrides the parent method to udpate the cached points.

Methods inherited from class org.jgraph.graph.AbstractCellView

childUpdated, createLocalAttributeMap, getAllAttributes, getAttributes, getBounds, getCell, getChildViews, getDescendantViews, getEditor, getGraph, getMapper, getModel, getParentView, getRendererComponent, intersects, isLeaf, refresh, removeFromParent, scale, setAttributes, setBounds, translate, updateAllAttributes, updateGroupBounds

Methods inherited from class java.lang.Object

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

Field Detail

renderer

public static VertexRenderer renderer

Renderer for the class.

bounds

protected Rectangle2D bounds

Reference to the bounds attribute

defaultCursors

public static transient int[] defaultCursors

Array that holds the cursors for the different control points.

xCursors

public static transient int[] xCursors

Array that holds the cursors for the different control points.

yCursors

public static transient int[] yCursors

Array that holds the cursors for the different control points.

Constructor Detail

VertexView

public VertexView(Object cell,
                  JGraph graph,
                  CellMapper mapper)

Constructs a vertex view for the specified model object and the specified child views.

Parameters:

cell - reference to the model object

Method Detail

update

public void update()

Overrides the parent method to udpate the cached points.

Specified by:

update in interface CellView

Overrides:

update in class AbstractCellView

getCachedBounds

public Rectangle2D getCachedBounds()

setCachedBounds

public void setCachedBounds(Rectangle2D bounds)

getRenderer

public CellViewRenderer getRenderer()

Returns a renderer for the class.

Specified by:

getRenderer in class AbstractCellView

getHandle

public CellHandle getHandle(GraphContext context)

Returns a cell handle for the view, if the graph and the view are sizeable.

Specified by:

getHandle in interface CellView

Specified by:

getHandle in class AbstractCellView

getBounds

public Rectangle2D getBounds()

Returns the cached bounds for the vertex.

Specified by:

getBounds in interface CellView

Overrides:

getBounds in class AbstractCellView

getCenterPoint

public Point2D getCenterPoint()

Returns the center of this vertex.

getPerimeterPoint

public Point2D getPerimeterPoint(Point2D source,
                                 Point2D p)

Returns the intersection of the bounding rectangle and the straight line between the source and the specified point p. The specified point is expected not to intersect the bounds. Note: You must override this method if you use a different renderer. This is because this method relies on the VertexRenderer interface, which can not be safely assumed for subclassers.