uk.ac.starlink.ttools.plot2
Class ZoomListener
java.lang.Object
uk.ac.starlink.ttools.plot2.ZoomListener
public abstract class ZoomListener
- extends Object
Mouse and keyboard listener that handles zoom events.
- Since:
- 13 Feb 2013
- Author:
- Mark Taylor
Method Summary |
void |
install(JComponent comp)
Installs this listener to listen on a GUI component. |
abstract void |
zoom(int nZoom,
Point point)
Performs the actual zooming action, as caused by mouse events
gathered by this listener. |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
ZoomListener
public ZoomListener()
zoom
public abstract void zoom(int nZoom,
Point point)
- Performs the actual zooming action, as caused by mouse events
gathered by this listener.
- Parameters:
nZoom
- number of zoom steps;
positive for zoom in, negative for zoom outpoint
- graphics position about which zoom has been requested
install
public void install(JComponent comp)
- Installs this listener to listen on a GUI component.
- Parameters:
comp
- target component
Copyright © 2013 Central Laboratory of the Research Councils. All Rights Reserved.