edu.umd.cfar.lamp.viper.gui.canvas
Class ScrollWheelPanEventHandler

java.lang.Object
  edu.umd.cs.piccolo.event.PBasicInputEventHandler
      edu.umd.cs.piccolo.event.PDragSequenceEventHandler
          edu.umd.cfar.lamp.viper.gui.canvas.ScrollWheelPanEventHandler

All Implemented Interfaces:

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

public class ScrollWheelPanEventHandler

extends edu.umd.cs.piccolo.event.PDragSequenceEventHandler

Author:

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Constructor Summary

ScrollWheelPanEventHandler()

Method Summary

protected void	drag(edu.umd.cs.piccolo.event.PInputEvent e)
protected void	dragActivityStep(edu.umd.cs.piccolo.event.PInputEvent aEvent) Do auto panning even when the mouse is not moving.
boolean	getAutopan()
protected void	pan(edu.umd.cs.piccolo.event.PInputEvent e)
protected java.lang.String	paramString() Returns a string representing the state of this node.
void	setAutopan(boolean autopan)
void	setMaxAutopanSpeed(double maxAutopanSpeed)
void	setMinAutopanSpeed(double minAutopanSpeed)
protected double	validatePanningSpeed(double speed)

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

dragActivityFinalStep, dragActivityFirstStep, endDrag, getMinDragStartDistance, getMousePressedCanvasPoint, isDragging, mouseDragged, mousePressed, mouseReleased, setIsDragging, setMinDragStartDistance, shouldStartDragInteraction, startDrag, 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

Constructor Detail

ScrollWheelPanEventHandler

public ScrollWheelPanEventHandler()

Method Detail

drag

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

pan

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

setAutopan

public void setAutopan(boolean autopan)

getAutopan

public boolean getAutopan()

setMinAutopanSpeed

public void setMinAutopanSpeed(double minAutopanSpeed)

setMaxAutopanSpeed

public void setMaxAutopanSpeed(double maxAutopanSpeed)

dragActivityStep

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

Do auto panning even when the mouse is not moving.

validatePanningSpeed

protected double validatePanningSpeed(double speed)

paramString

protected java.lang.String paramString()

Returns a string representing the state of this node. This method is intended to be used only for debugging purposes, and the content and format of the returned string may vary between implementations. The returned string may be empty but may not be null.

Returns:

a string representation of this node's state