org.jgraph.example
Class CompoundVertexView

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

All Implemented Interfaces:

java.io.Serializable, org.jgraph.graph.CellView

public class CompoundVertexView
extends org.jgraph.graph.VertexView

Vertex view that supports visual vertex nesting to show inclusion edges in a compound graph. Differs from a selection group view as follows:

• Bounds of a compound vertex view with child views are not determined directly by the child views' bounds, but rather are independently settable like the bounds of a leaf vertex.
• Scaling a parent compound vertex view does not scale its child views, although translating a parent compound vertex view does translate its child views.

Like any VertexView, the bounds of a compound vertex view are forced to always remain large enough to enclose its child views. Otherwise, no restrictions are placed on the bounds.

Author:

J. Pulley

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class org.jgraph.graph.VertexView

org.jgraph.graph.VertexView.SizeHandle

Field Summary

Fields inherited from class org.jgraph.graph.VertexView

defaultBounds, defaultCursors, renderer, xCursors, yCursors

Fields inherited from class org.jgraph.graph.AbstractCellView

cellEditor

Constructor Summary

CompoundVertexView()
Initializes a new view for a compound vertex.

CompoundVertexView(java.lang.Object cell)
Initializes a new view for a compound vertex with the specified model object.

Method Summary

java.awt.geom.Rectangle2D	getBounds() Retrieve this view's bounds from the view's attributes.
void	scale(double sx, double sy, java.awt.geom.Point2D origin) Scale this view by sx and sy, relative to origin.
void	setBounds(java.awt.geom.Rectangle2D newBounds) Set this view's bounds in the view's attributes.
void	translate(double dx, double dy) Translate this view and all child views by dx, dy.
void	update(org.jgraph.graph.GraphLayoutCache cache) Update attributes for this view and indicate to the parent this child has been updated.

Methods inherited from class org.jgraph.graph.VertexView

getCachedBounds, getCenterPoint, getHandle, getPerimeterPoint, getPerimeterPoint, getRenderer, setCachedBounds

Methods inherited from class org.jgraph.graph.AbstractCellView

changeAttributes, childUpdated, getAllAttributes, getAttributes, getBounds, getCell, getCenterPoint, getChildViews, getDescendantViews, getEditor, getParentView, getRendererComponent, intersects, isLeaf, refresh, removeFromParent, setAttributes, setCell

Methods inherited from class java.lang.Object

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

Constructor Detail

CompoundVertexView

public CompoundVertexView()

Initializes a new view for a compound vertex.

CompoundVertexView

public CompoundVertexView(java.lang.Object cell)

Initializes a new view for a compound vertex with the specified model object.

Parameters:

cell - model object

Method Detail

getBounds

public java.awt.geom.Rectangle2D getBounds()

Retrieve this view's bounds from the view's attributes.

Specified by:

getBounds in interface org.jgraph.graph.CellView

Overrides:

getBounds in class org.jgraph.graph.VertexView

Returns:

view's bounds

setBounds

public void setBounds(java.awt.geom.Rectangle2D newBounds)

Set this view's bounds in the view's attributes. If the new bounds do not completely enclose any child vertices, the new bounds are set to the union of the child vertices' bounds and the argument.

Overrides:

setBounds in class org.jgraph.graph.AbstractCellView

Parameters:

newBounds - new bounds

update

public void update(org.jgraph.graph.GraphLayoutCache cache)

Update attributes for this view and indicate to the parent this child has been updated.

Specified by:

update in interface org.jgraph.graph.CellView

Overrides:

update in class org.jgraph.graph.VertexView

translate

public void translate(double dx,
                      double dy)

Translate this view and all child views by dx, dy.

Overrides:

translate in class org.jgraph.graph.AbstractCellView

Parameters:

dx - x-axis translation

dy - y-axis translation

scale

public void scale(double sx,
                  double sy,
                  java.awt.geom.Point2D origin)

Scale this view by sx and sy, relative to origin. Child views are not scaled.

Overrides:

scale in class org.jgraph.graph.AbstractCellView

Parameters:

sx - x scaling factor

sy - y scaling factor