[OpenLayers-Dev] SelectStyle

[Paul Spencer]

I *think* what you should do is something like this (note that this  
code may not work but the concept should be right):

var defaultStyle = new OpenLayers.Style({fillColor: 'orange',  
fillOpacity: 0.3, strokeWidth: 1.0, strokeColor:  'orange',  
pointRadius: 10 });

var selectStyle = new OpenLayers.Style({fillColor: 'blue',  
fillOpacity: 0.3, strokeWidth: 1.0, strokeColor:  'blue', pointRadius:  
10});

var anotherStyleMap = new OpenLayers.StyleMap({
   'default': defaultStyle,
   'select': selectStyle
});

The StyleMap can have multiple styles for different render intents.   
Default is used by ... er ... default :)  Select is default used for  
selections.

The select control's selectStyle is expected to be the name of a  
renderIntent, i.e. 'select'.

In theory, you should be able to create an entirely new renderIntent  
by giving it a different name when creating the StyleMap but in  
practice this hasn't worked well for me and I have dug into why that  
is yet.

Cheers

Paul

On 2009-10-06, at 4:50 PM, Francesca Facchetti wrote:

> Hi,
> I'm trying to apply a style do my SelectFeature control, but it  
> doesn't work.
>
> this is the style I want for unselected features:
> var anotherStyleMap = new OpenLayers.StyleMap({fillColor: 'orange',
> fillOpacity: 0.3, strokeWidth: 1.0, strokeColor:  'orange',
> pointRadius: 10 });
>
> this is my layer:
> punti = new OpenLayers.Layer.WFS("Postgis, punti",
> "featureserver.cgi/punti?format=WFS",
>
> 		{maxfeatures: maxf_level},
>
> 		{extractAttributes: true, displayInLayerSwitcher: false, styleMap :
> anotherStyleMap}
>
> 		);
>
>
> this is the style for selected features:
> var stileSelezione = new OpenLayers.Style({fillColor: 'blue',
> fillOpacity: 0.3, strokeWidth: 1.0, strokeColor:  'blue', pointRadius:
> 10});
>
> and this is the SelectFeature control:
> modify_POI_info: new OpenLayers.Control.SelectFeature(punti,  {
> clickout: true, toggle: false, multiple: false, hover: false,
> box: false, selectStyle: stileSelezione
> })
>
> the first style is applied, but the selectStyle isn't. What do I do  
> wrong?
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__________________________________________

    Paul Spencer
    Chief Technology Officer
    DM Solutions Group Inc
    http://research.dmsolutions.ca/