prefuse.controls
Class WheelZoomControl

java.lang.Object
  prefuse.controls.ControlAdapter
      prefuse.controls.AbstractZoomControl
          prefuse.controls.WheelZoomControl

All Implemented Interfaces:

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

public class WheelZoomControl

extends AbstractZoomControl

Zooms the display using the mouse scroll wheel, changing the scale of the viewable region.

Author:

bobruney, mathis ahrens, jeffrey heer

Field Summary

Fields inherited from class prefuse.controls.AbstractZoomControl

DEFAULT_MAX_SCALE, DEFAULT_MIN_SCALE, m_maxScale, m_minScale, m_zoomOverItem, MAX_ZOOM, MIN_ZOOM, NO_ZOOM, ZOOM

Fields inherited from interface prefuse.controls.Control

LEFT_MOUSE_BUTTON, MIDDLE_MOUSE_BUTTON, RIGHT_MOUSE_BUTTON

Constructor Summary

WheelZoomControl()

Method Summary

void	itemWheelMoved(VisualItem item, java.awt.event.MouseWheelEvent e) Invoked when the mouse wheel is rotated while the mouse is over a VisualItem.
void	mouseWheelMoved(java.awt.event.MouseWheelEvent e) Invoked when the mouse wheel is rotated while the mouse is over the Display (but NOT a VisualItem).

Methods inherited from class prefuse.controls.AbstractZoomControl

getMaxScale, getMinScale, isZoomOverItem, setMaxScale, setMinScale, setZoomOverItem, zoom

Methods inherited from class prefuse.controls.ControlAdapter

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

Methods inherited from class java.lang.Object

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

Constructor Detail

WheelZoomControl

public WheelZoomControl()

Method Detail

itemWheelMoved

public void itemWheelMoved(VisualItem item,
                           java.awt.event.MouseWheelEvent e)

Description copied from interface: Control

Invoked when the mouse wheel is rotated while the mouse is over a VisualItem.

Specified by:

itemWheelMoved in interface Control

Overrides:

itemWheelMoved in class ControlAdapter

See Also:

Control.itemWheelMoved(prefuse.visual.VisualItem, java.awt.event.MouseWheelEvent)

mouseWheelMoved

public void mouseWheelMoved(java.awt.event.MouseWheelEvent e)

Description copied from interface: Control

Invoked when the mouse wheel is rotated while the mouse is over the Display (but NOT a VisualItem).

Specified by:

mouseWheelMoved in interface Control

Overrides:

mouseWheelMoved in class ControlAdapter

See Also:

MouseWheelListener.mouseWheelMoved(java.awt.event.MouseWheelEvent)