prefuse.controls
Class NeighborHighlightControl

java.lang.Object
  prefuse.controls.ControlAdapter
      prefuse.controls.NeighborHighlightControl

All Implemented Interfaces:

java.awt.event.KeyListener, java.awt.event.MouseListener, java.awt.event.MouseMotionListener, java.awt.event.MouseWheelListener, java.util.EventListener, Control

public class NeighborHighlightControl
extends ControlAdapter

A ControlListener that sets the highlighted status (using the VisualItem.setHighlighted method) for nodes neighboring the node currently under the mouse pointer. The highlight flag might then be used by a color function to change node appearance as desired.

Author:

jeffrey heer

Field Summary

Fields inherited from interface prefuse.controls.Control

LEFT_MOUSE_BUTTON, MIDDLE_MOUSE_BUTTON, RIGHT_MOUSE_BUTTON

Constructor Summary

NeighborHighlightControl()
Creates a new highlight control.

NeighborHighlightControl(java.lang.String activity)
Creates a new highlight control that runs the given activity whenever the neighbor highlight changes.

Method Summary

boolean	isHighlightWithInvisibleEdge() Indicates if neighbor nodes with edges currently not visible still get highlighted.
void	itemEntered(VisualItem item, java.awt.event.MouseEvent e) Invoked when the mouse enters a VisualItem.
void	itemExited(VisualItem item, java.awt.event.MouseEvent e) Invoked when the mouse exits a VisualItem.
void	setHighlightWithInvisibleEdge(boolean highlightWithInvisibleEdge) Determines if neighbor nodes with edges currently not visible still get highlighted.
protected void	setNeighborHighlight(NodeItem n, boolean state) Set the highlighted state of the neighbors of a node.

Methods inherited from class prefuse.controls.ControlAdapter

isEnabled, itemClicked, itemDragged, itemKeyPressed, itemKeyReleased, itemKeyTyped, itemMoved, itemPressed, itemReleased, itemWheelMoved, keyPressed, keyReleased, keyTyped, mouseClicked, mouseDragged, mouseEntered, mouseExited, mouseMoved, mousePressed, mouseReleased, mouseWheelMoved, setEnabled

Methods inherited from class java.lang.Object

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

Constructor Detail

NeighborHighlightControl

public NeighborHighlightControl()

Creates a new highlight control.

NeighborHighlightControl

public NeighborHighlightControl(java.lang.String activity)

Creates a new highlight control that runs the given activity whenever the neighbor highlight changes.

Parameters:

activity - the update Activity to run

Method Detail

itemEntered

public void itemEntered(VisualItem item,
                        java.awt.event.MouseEvent e)

Description copied from interface: Control

Invoked when the mouse enters a VisualItem.

Specified by:

itemEntered in interface Control

Overrides:

itemEntered in class ControlAdapter

See Also:

Control.itemEntered(prefuse.visual.VisualItem, java.awt.event.MouseEvent)

itemExited

public void itemExited(VisualItem item,
                       java.awt.event.MouseEvent e)

Description copied from interface: Control

Invoked when the mouse exits a VisualItem.

Specified by:

itemExited in interface Control

Overrides:

itemExited in class ControlAdapter

See Also:

Control.itemExited(prefuse.visual.VisualItem, java.awt.event.MouseEvent)

setNeighborHighlight

protected void setNeighborHighlight(NodeItem n,
                                    boolean state)

Set the highlighted state of the neighbors of a node.

Parameters:

n - the node under consideration

state - the highlighting state to apply to neighbors

isHighlightWithInvisibleEdge

public boolean isHighlightWithInvisibleEdge()

Indicates if neighbor nodes with edges currently not visible still get highlighted.

Returns:

true if neighbors with invisible edges still get highlighted, false otherwise.

setHighlightWithInvisibleEdge

public void setHighlightWithInvisibleEdge(boolean highlightWithInvisibleEdge)

Determines if neighbor nodes with edges currently not visible still get highlighted.

Parameters:

highlightWithInvisibleEdge - assign true if neighbors with invisible edges should still get highlighted, false otherwise.