[ka-Map-users] Scroll wheel zoom

[David Badke]

I'll take a crack at it, but it will have to wait until next week now...

David


Paul Spencer wrote:
> David,
>
> this sounds like a reasonable request ... can you file a bug 
> (bugzilla.maptools.org) describing how you would like it to work (i.e. 
> how you would expect it to work if you wanted to call your own action 
> on scroll)
>
> Cheers
>
> Paul
>
> On 13-Apr-06, at 6:47 PM, David Badke wrote:
>
>> It would be nice if there was a way to disable the default scroll 
>> wheel action (zoom in/out), or better yet, define one's own action, 
>> without having to modify kaMap.js or kaTool,js. My test users 
>> objected to the zooming - they kept doing it by accident - so I had 
>> to disable it, meaning I changed kaMap.js, which I don't like to do. 
>> My code is a bit crude: :-[
>>
>> In kaMap constructor, added:
>>
>>     this.useScrollWheel = true;
>>
>> Changed kaMap_onmousewheel to:
>>
>>    if ((this.useScrollWheel) &&                         <------------
>>          (this.kaMap.currentTool)) {
>>       this.kaMap.currentTool.onmousewheel( e );
>>    }
>>
>> In startUp.js myOnLoad added after myKaMap instatiation:
>>
>>    myKaMap.useScrollWheel = false;
>>
>> This works, but is not ideal. Anyway, any interest in making the 
>> scroll wheel action optional and/or configurable?
>>
>> David
>>
>>
>> -- 
 

David Badke
Humanities Computing and Media Center
University of Victoria, BC, Canada