[OpenLayers-Users] Control activate and deactivate events

[George Mu'ammar]

Thanks Robert, unfortunately that does not help. I am interested in  
capturing the event so I know when the user has modified a feature and  
I can then use the GML.

I am caught in a spiral of problems. I should really be using the  
afterfeaturemodified event on the layer but this does not work  
probably because I am using styles on my layer. I get a CLASS_NAME  
error that I cannot debug. I posted a message on the list but no reply  
and I see nothing about it in the forum. I seem to be navigating in  
unmapped territory...

Thanks for the effort!
-- 
George

Follow me:   http://twitter.com/geo_twit




On Wed, 27 May 2009 Robert Sanson <SansonR at asurequality.com> wrote:

> Hi George
>
> Here is how I specify the controls:
>
> //Select, Draw and Modify controls - these are specific to the layer
>               controls = {
>                 select: new OpenLayers.Control.SelectFeature(crops,   
> {callbacks: {'over':feature_info}}),
>                 dpolygon: new   
> OpenLayers.Control.DrawFeature(crops,OpenLayers.Handler.Polygon),
>                 modify: new OpenLayers.Control.ModifyFeature(crops),
>                 delf: new OpenLayers.Control.SelectFeature(crops,   
> {onSelect: function(feature) {crops.destroyFeatures([feature])}})
>                 //delf: new OpenLayers.Control.SelectFeature(crops,   
> {onSelect: function(feature)   
> {feature.geometry.destroy();crops.eraseFeatures([feature])}})
>               };
>               for(var key in controls) {
>                 map.addControl(controls[key]);
>               }
>
> Then I have a function that responds to radio buttons in a div   
> outside the map that sets the mode and activates or deactivates the   
> controls:
>
>  function toggleControl(element) {
>               mode = element.value;
>               OpenLayers.Util.getElement('comments').innerHTML =   
> "Mode:" + mode;
>               if ((mode == "select") || (mode == "modify")){
>                 crop_style.strokeColor = "#0000ff";
>               }
>               else {
>                 crop_style.strokeColor = "#ff0000";
>               }
>               for(key in controls) {
>                 var control = controls[key];
>                 if(element.value == key && element.checked) {
>                     control.activate();
>                 } else {
>                     control.deactivate();
>                 }
>               }
>               crops.onFeatureInsert = function(feature) {
>                 feature.attributes.prop0 = 'new'; //This should be   
> modified to get actual ID
>                 alert("New crop area inserted");
>               }
>             }
>
> Hope that helps.
>
> Robert S
>>>> Geo-rge <George at muammar.net> 28/05/2009 8:41 a.m. >>>
>
> Dear List,
>
> I am having trouble trying to capture events when the ModifyFeature control
> is activated and deactivated.
>
> I define my control as such:
>
>    modify =  new
> OpenLayers.Control.ModifyFeature(lyrPlanning,{'displayClass':
> 'olControlModifyFeature',
>    'mode': OpenLayers.Control.ModifyFeature.RESHAPE |
> OpenLayers.Control.ModifyFeature.DRAG  |
> OpenLayers.Control.ModifyFeature.ROTATE});
>
> I try to register the event like this:
>   modify.events.register('deactivate',modify,modify_deactivated);
>
> this last line causes a syntax error!
>
> I had already defined
> function modify_deactivated() {alert('!');}"
>
> I have that feeling that I am doing something so silly I will never get it.
> Appreciate any help
>
> George Mu'ammar
> --
> View this message in context:   
> http://n2.nabble.com/Control-activate-and-deactivate-events-tp2983592p2983592.html
> Sent from the OpenLayers Users mailing list archive at Nabble.com.
>
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