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

Class AbstractDragSequenceEventHandler

java.lang.Object

edu.umd.cs.piccolo.event.PBasicInputEventHandler

edu.umd.cs.piccolo.event.PDragSequenceEventHandler

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

All Implemented Interfaces:

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

Direct Known Subclasses:

MyInputDragSequenceEventHandler, MyLabelDragSequenceEventHandler

public abstract class AbstractDragSequenceEventHandler
extends edu.umd.cs.piccolo.event.PDragSequenceEventHandler

An abstract sequence handler that implements common tasks as drag start an drag activity step methods. Subclasses in most cases will have to implement the PDragSequenceEventHandler.endDrag(PInputEvent) to do specific handling at the end of the dragging.

Version:

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

Author:

Rudolf Mayer

Field Summary

Fields

Modifier and Type	Field and Description
protected java.lang.String[]	allowedNodeTypes Define what values for the PNode.getAttribute(Object) are acceptable to select a PNode for dragging.
protected double	clickX
protected double	clickY
protected java.awt.geom.Point2D	startPos

Constructor Summary

Constructors

Constructor and Description
AbstractDragSequenceEventHandler()

Method Summary

Modifier and Type	Method and Description
protected void	dragActivityStep(edu.umd.cs.piccolo.event.PInputEvent e)
protected void	startDrag(edu.umd.cs.piccolo.event.PInputEvent e)

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

drag, dragActivityFinalStep, dragActivityFirstStep, endDrag, getDragActivity, getMinDragStartDistance, getMousePressedCanvasPoint, isDragging, mouseDragged, mousePressed, mouseReleased, paramString, setIsDragging, setMinDragStartDistance, shouldStartDragInteraction, startDragActivity, stopDragActivity

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

acceptsEvent, getEventFilter, keyboardFocusGained, keyboardFocusLost, keyPressed, keyReleased, keyTyped, mouseClicked, mouseEntered, mouseExited, mouseMoved, mouseWheelRotated, mouseWheelRotatedByBlock, processEvent, setEventFilter, toString

Methods inherited from class java.lang.Object

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

Field Detail

startPos

protected java.awt.geom.Point2D startPos

clickX

protected double clickX

clickY

protected double clickY

allowedNodeTypes

protected java.lang.String[] allowedNodeTypes

Define what values for the PNode.getAttribute(Object) are acceptable to select a PNode for dragging. Subclasses have to set values to this variable in their constructor, otherwise all PNodes will be dragable.

Constructor Detail

AbstractDragSequenceEventHandler

public AbstractDragSequenceEventHandler()

Method Detail

dragActivityStep

protected void dragActivityStep(edu.umd.cs.piccolo.event.PInputEvent e)

Overrides:

dragActivityStep in class edu.umd.cs.piccolo.event.PDragSequenceEventHandler

startDrag

protected void startDrag(edu.umd.cs.piccolo.event.PInputEvent e)

Overrides:

startDrag in class edu.umd.cs.piccolo.event.PDragSequenceEventHandler