Package org.jungrapht.visualization.control

Class LensMagnificationGraphMousePlugin

java.lang.Object

org.jungrapht.visualization.control.AbstractGraphMousePlugin

org.jungrapht.visualization.control.LensMagnificationGraphMousePlugin

All Implemented Interfaces:

MouseWheelListener, EventListener, GraphMousePlugin

public class LensMagnificationGraphMousePlugin
extends AbstractGraphMousePlugin
implements MouseWheelListener

HyperbolicMagnificationGraphMousePlugin changes the magnification within the Hyperbolic projection of the HyperbolicTransformer.

Author:

Tom Nelson

Nested Class Summary

Nested classes/interfaces inherited from class org.jungrapht.visualization.control.AbstractGraphMousePlugin

AbstractGraphMousePlugin.Selecting

Field Summary

Fields

Modifier and Type	Field	Description
protected float	ceiling
protected float	delta
protected float	floor
protected int	modifiers

Fields inherited from class org.jungrapht.visualization.control.AbstractGraphMousePlugin

cursor, down

Constructor Summary

Constructors

Constructor	Description
LensMagnificationGraphMousePlugin()	Creates an instance with modifier of CTRL_DOWN_MASK, and default min/max/delta zoom values of 1/4/0.2.
LensMagnificationGraphMousePlugin(float floor, float ceiling, float delta)	Creates an instance with modifier of CTRL_DOWN_MASK, and the specified zoom parameters.
LensMagnificationGraphMousePlugin(int modifiers)	Creates an instance with the specified modifiers and the default min/max/delta zoom values of 1/4/0.2.
LensMagnificationGraphMousePlugin(int modifiers, float floor, float ceiling, float delta)	Creates an instance with the specified mouse event modifiers and zoom parameters.

Method Summary

Modifier and Type	Method	Description
boolean	checkModifiers(MouseEvent e)	override to check equality with a mask
void	mouseWheelMoved(MouseWheelEvent e)	change magnification of the lens, depending on the direction of the mouse wheel motion.

Methods inherited from class org.jungrapht.visualization.control.AbstractGraphMousePlugin

getCursor, getModifiersEx, setCursor, setModifiers

Methods inherited from class java.lang.Object

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

Field Detail

floor

protected final float floor

ceiling

protected final float ceiling

delta

protected final float delta

modifiers

protected int modifiers

Constructor Detail

LensMagnificationGraphMousePlugin

public LensMagnificationGraphMousePlugin()

Creates an instance with modifier of CTRL_DOWN_MASK, and default min/max/delta zoom values of 1/4/0.2.

LensMagnificationGraphMousePlugin

public LensMagnificationGraphMousePlugin(float floor,
                                         float ceiling,
                                         float delta)

Creates an instance with modifier of CTRL_DOWN_MASK, and the specified zoom parameters.

Parameters:

floor - the minimum zoom value

ceiling - the maximum zoom value

delta - the change in zoom value caused by each mouse event

LensMagnificationGraphMousePlugin

public LensMagnificationGraphMousePlugin(int modifiers)

Creates an instance with the specified modifiers and the default min/max/delta zoom values of 1/4/0.2.

Parameters:

modifiers - the mouse event modifiers to specify

LensMagnificationGraphMousePlugin

public LensMagnificationGraphMousePlugin(int modifiers,
                                         float floor,
                                         float ceiling,
                                         float delta)

Creates an instance with the specified mouse event modifiers and zoom parameters.

Parameters:

modifiers - the mouse event modifiers to specify

floor - the minimum zoom value

ceiling - the maximum zoom value

delta - the change in zoom value caused by each mouse event

Method Detail

checkModifiers

public boolean checkModifiers(MouseEvent e)

override to check equality with a mask

Specified by:

checkModifiers in interface GraphMousePlugin

Overrides:

checkModifiers in class AbstractGraphMousePlugin

Parameters:

e - an event to compare to

Returns:

whether the member modifiers match the event modifiers

mouseWheelMoved

public void mouseWheelMoved(MouseWheelEvent e)

change magnification of the lens, depending on the direction of the mouse wheel motion.

Specified by:

mouseWheelMoved in interface MouseWheelListener