net.sourceforge.toscanaj.view.diagram
Class NodeView

java.lang.Object
  org.tockit.canvas.CanvasItem
      net.sourceforge.toscanaj.view.diagram.NodeView

public class NodeView

extends org.tockit.canvas.CanvasItem

class DiagramNode holds details on node position and size

Constructor Summary

NodeView(DiagramNode diagramNode, DiagramView diagramView, ConceptInterpretationContext context)
Construct a nodeView for a Node.

Method Summary

boolean	containsPoint(java.awt.geom.Point2D point) Implements CanvasItem.containsPoint(Point2D).
void	draw(java.awt.Graphics2D graphics) Draws the node as circle.
java.awt.geom.Rectangle2D	getCanvasBounds(java.awt.Graphics2D g) Calculates the rectangle around this node.
ConceptInterpretationContext	getConceptInterpretationContext()
DiagramNode	getDiagramNode()
DiagramView	getDiagramView()
java.awt.geom.Point2D	getPosition()
protected double	getRadius(double maxRadius)
double	getRadiusX()
double	getRadiusY()
int	getSelectionState() Returns the information if and how the node is selected.
boolean	hasAutoRaise() Overwritten to avoid raising nodes.
void	setSelectedConcepts(Concept[] selectedConcepts) Recalculates if the node is selected and how.

Methods inherited from class java.lang.Object

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

Constructor Detail

NodeView

public NodeView(DiagramNode diagramNode,
                DiagramView diagramView,
                ConceptInterpretationContext context)

Construct a nodeView for a Node. The DiagramView is used for the callback when a node was selected.

Method Detail

getDiagramNode

public DiagramNode getDiagramNode()

getConceptInterpretationContext

public ConceptInterpretationContext getConceptInterpretationContext()

draw

public void draw(java.awt.Graphics2D graphics)

Draws the node as circle.

getRadiusY

public double getRadiusY()

getRadiusX

public double getRadiusX()

getRadius

protected double getRadius(double maxRadius)

containsPoint

public boolean containsPoint(java.awt.geom.Point2D point)

Implements CanvasItem.containsPoint(Point2D). This is currently not exact if the node is not a circle, the test is if a circle with the geometric average of the two radii is hit.

getCanvasBounds

public java.awt.geom.Rectangle2D getCanvasBounds(java.awt.Graphics2D g)

Calculates the rectangle around this node.

getPosition

public java.awt.geom.Point2D getPosition()

setSelectedConcepts

public void setSelectedConcepts(Concept[] selectedConcepts)

Recalculates if the node is selected and how.

See Also:

getSelectionState()

getSelectionState

public int getSelectionState()

Returns the information if and how the node is selected. The return values are: - NO_SELECTION: we don't have a selection at the moment - NOT_SELECTED: the node displays a concept which is neither in filter nor ideal of the selected concept - SELECTED_DIRECTLY: the node displays the selected concept - SELECTED_IN_FILTER: the node displays a concept which is in the filter of the selected concept - SELECTED_IN_IDEAL: the node displays a concept which is in the ideal of the selected concept

See Also:

DiagramView.setSelectedConcepts(Concept[])

hasAutoRaise

public boolean hasAutoRaise()

Overwritten to avoid raising nodes.

getDiagramView

public DiagramView getDiagramView()