at.tuwien.ifs.somtoolbox.apps.viewer.handlers

Class MyWheelZoomEventHandler

java.lang.Object

edu.umd.cs.piccolo.event.PBasicInputEventHandler

at.tuwien.ifs.somtoolbox.apps.viewer.handlers.MyWheelZoomEventHandler

All Implemented Interfaces:

edu.umd.cs.piccolo.event.PInputEventListener, java.util.EventListener

public class MyWheelZoomEventHandler
extends edu.umd.cs.piccolo.event.PBasicInputEventHandler

Handles zooming by the mouse wheel.

Version:

$Id: MyWheelZoomEventHandler.java 3589 2010-05-21 10:42:01Z mayer $

Author:

Robert Neumayer

Field Summary

Fields

Modifier and Type	Field and Description
private static double	maxScale
private static double	minScale

Constructor Summary

Constructors

Constructor and Description
MyWheelZoomEventHandler()

Method Summary

Modifier and Type	Method and Description
void	mouseWheelRotated(edu.umd.cs.piccolo.event.PInputEvent e)
static void	processZoomEvent(edu.umd.cs.piccolo.event.PInputEvent e, int zoomDirection, edu.umd.cs.piccolo.PCamera camera) This method actually handles the zoom event; the method is also used by the key event handler in SOMPane.

Methods inherited from class edu.umd.cs.piccolo.event.PBasicInputEventHandler

acceptsEvent, getEventFilter, keyboardFocusGained, keyboardFocusLost, keyPressed, keyReleased, keyTyped, mouseClicked, mouseDragged, mouseEntered, mouseExited, mouseMoved, mousePressed, mouseReleased, mouseWheelRotatedByBlock, paramString, processEvent, setEventFilter, toString

Methods inherited from class java.lang.Object

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

Field Detail

minScale

private static double minScale

maxScale

private static double maxScale

Constructor Detail

MyWheelZoomEventHandler

public MyWheelZoomEventHandler()

Method Detail

mouseWheelRotated

public void mouseWheelRotated(edu.umd.cs.piccolo.event.PInputEvent e)

Overrides:

mouseWheelRotated in class edu.umd.cs.piccolo.event.PBasicInputEventHandler

processZoomEvent

public static void processZoomEvent(edu.umd.cs.piccolo.event.PInputEvent e,
                                    int zoomDirection,
                                    edu.umd.cs.piccolo.PCamera camera)

This method actually handles the zoom event; the method is also used by the key event handler in SOMPane.