RE: [OpenMap Users] Mouse Wheel Events

Thank you. This is very helpful.

I had some difficulties connecting it up. Instead of extending the
NavMouseMode, I extended SelectMouseMode and do this (I am not using it for
map navigation or zoom):

ExtendedSelectMouseMode mouseMode = new ExtendedSelectMouseMode();
MouseDelegator md = new MouseDelegator(mapBean);

Layer[] layers = new Layer[] {
  firstLayer,
  secondLayer
};

md.setupMouseModesWithLayers(layers);
md.setActiveMouseMode(mouseMode);

In each of my layers, I changed getMouseModeServiceList() to return
ExtendedSelectMouseMode.modeID instead of SelectMouseMode.modeID.

And it does not seem to fire off the mouseWheelMoved listener. I feel like
I am missing something obvious.

Thanks-

Chris

-----Original Message-----
From: Roy Newton [mailto:newton@bmh.com]
Sent: Wednesday, August 25, 2004 11:39 AM
To: chris.allport@red-inc.us; openmap-users@bbn.com
Subject: Re: [OpenMap Users] Mouse Wheel Events

Here's the way I did it...

public class TacMapNavMode extends NavMouseMode implements
MouseWheelListener{

    ...

public void mouseWheelMoved(MouseWheelEvent e) {

float curLevel = TacMap.getInstance().getMainMapBean().getScale();

if(e.getWheelRotation() > 0){ //down

TacMap.getInstance().zoom(curLevel * 0.5f);

}

else{//up

TacMap.getInstance().zoom(curLevel / 0.5f);

}

}

}

----- Original Message -----
From: "Chris Allport" <chris.allport@red-inc.us>
To: <openmap-users@bbn.com>
Sent: Wednesday, August 25, 2004 10:31 AM
Subject: [OpenMap Users] Mouse Wheel Events

> I would like to capture mouse wheel events in one of my layers. I found
> that I cannot simply extend the MouseWheelListener in my layer -- it
blocks
> the other mouse events.
>
> Can anyone share how they have implemented capturing the mouse wheel?
>
> Thanks in advance-
>
> Chris
>
> --
> Chris Allport
> Unmanned Systems Research & Development Lab
> Patuxent River Naval Air Station
> Phone: (301) 904-5943
>
>
> --
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