y.layout
Class EdgeOppositeNodeLabelModel

java.lang.Object
  y.layout.EdgeOppositeNodeLabelModel

All Implemented Interfaces:

NodeLabelModel

public class EdgeOppositeNodeLabelModel
extends Object
implements NodeLabelModel

A node label model that sets the labels at the opposite side of the outgoing edges of a node.

Nested Class Summary

class

EdgeOppositeNodeLabelModel.ModelParameter

Constructor Summary

EdgeOppositeNodeLabelModel(LayoutGraph g, Node n)

Method Summary

Object	createModelParameter(YRectangle labelBounds, NodeLayout nodeLayout) Creates a model parameter that represents the given node label context best within this model.
Object	getDefaultParameter() Returns the default position, this is offset (0,0)
YList	getLabelCandidates(NodeLabelLayout nl, NodeLayout nodeLayout) Returns a list of candidate positions for the label.
YPoint	getLabelPlacement(YDimension labelSize, NodeLayout nodeLayout, Object param) Returns the positions of the lower upper corner of the label with given parameter.

Methods inherited from class java.lang.Object

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

Constructor Detail

EdgeOppositeNodeLabelModel

public EdgeOppositeNodeLabelModel(LayoutGraph g,
                                  Node n)

Method Detail

getDefaultParameter

public Object getDefaultParameter()

Returns the default position, this is offset (0,0)

Specified by:

getDefaultParameter in interface NodeLabelModel

Returns:

A model parameter that can be passed to the NodeLabelModel.getLabelPlacement(YDimension, NodeLayout, Object) method.

getLabelPlacement

public YPoint getLabelPlacement(YDimension labelSize,
                                NodeLayout nodeLayout,
                                Object param)

Returns the positions of the lower upper corner of the label with given parameter.

Specified by:

getLabelPlacement in interface NodeLabelModel

Parameters:

labelSize - the size of the label.

nodeLayout - the geometric description of the labeled node.

param - not used by this model

Returns:

The coordinates of the upper-left corner of a label position.

createModelParameter

public Object createModelParameter(YRectangle labelBounds,
                                   NodeLayout nodeLayout)

Description copied from interface: NodeLabelModel

Creates a model parameter that represents the given node label context best within this model. The created model parameter represents the closest parameter representation of the given label location that can be achieved within this model.

Specified by:

createModelParameter in interface NodeLabelModel

Parameters:

labelBounds - The bounds of the label for which a parameter representation is sought.

nodeLayout - The layout of the node to which the label belongs.

Returns:

A model parameter that can be passed to the NodeLabelModel.getLabelPlacement(YDimension, NodeLayout, Object) method.

getLabelCandidates

public YList getLabelCandidates(NodeLabelLayout nl,
                                NodeLayout nodeLayout)

Returns a list of candidate positions for the label. The list consists of exactly one position.

Specified by:

getLabelCandidates in interface NodeLabelModel

Parameters:

nl - The label layout for which candidates should be generated.

nodeLayout - The layout of the node to which the label belongs.

Returns:

A list of NodeLabelCandidate objects.