Re: [Geotools-gt2-users] JMapPane force repaint

[Greg E. <gr...@er...>]

On Jan 21, 2009, at 6:27 PM, Greg Ederer wrote:

> Hi Michael,
>
> This does not quite work because the the compiler is unable to locate
> the newly defined method in the anonymous subclass.  But, creating a
> named subclass of DefaultMapLayer with your dataChanged method does
> work.
>
> You have to override all of the constructors in DefaultMapLayer, since
> it has no public constructor, like so:
>

I meant 'has no public default constructor'.

Cheers,

Greg

> public class UpdatingMapLayer
>         extends DefaultMapLayer
> {
>   UpdatingMapLayer(AbstractGridCoverage2DReader reader, Style style)
>           throws Exception
>   {
>     super(reader, style);
>   }
>
>   UpdatingMapLayer(AbstractGridCoverage2DReader reader, Style style,
> String title)
>           throws Exception
>   {
>     super(reader, style, title);
>   }
>
>   UpdatingMapLayer(CollectionSource source, Style style, String title)
>   {
>     super(source, style, title);
>   }
>
>   UpdatingMapLayer(Collection collection, Style style)
>   {
>     super(collection, style);
>   }
>
>   UpdatingMapLayer(Collection collection, Style style, String title)
>   {
>     super(collection, style, title);
>   }
>
>   UpdatingMapLayer(FeatureCollection<SimpleFeatureType,
> SimpleFeature> collection, Style style)
>   {
>     super(collection, style);
>   }
>
>   UpdatingMapLayer(FeatureCollection<SimpleFeatureType,
> SimpleFeature> collection, Style style, String title)
>   {
>     super(collection, style, title);
>   }
>
>   UpdatingMapLayer(FeatureSource<SimpleFeatureType, SimpleFeature>
> featureSource, Style style)
>   {
>     super(featureSource, style);
>   }
>
>   UpdatingMapLayer(FeatureSource<SimpleFeatureType, SimpleFeature>
> featureSource, Style style, String title)
>   {
>     super(featureSource, style, title);
>   }
>
>   UpdatingMapLayer(GridCoverage coverage, Style style)
>           throws Exception
>   {
>     super(coverage, style);
>   }
>
>   UpdatingMapLayer(GridCoverage coverage, Style style, String title)
>           throws Exception
>   {
>     super(coverage, style, title);
>   }
>
>   public void dataChanged()
>   {
>     sourceListener.changed(null);
>   }
> }
>
> Cheers,
>
> Greg
>
> On Jan 21, 2009, at 4:53 PM, Michael Bedward wrote:
>
>> Greg,
>>
>> Could you test this for me please ?
>>
>>       // instead of myMapContext.addLayer( myGrid, myStyle ) do
>> this...
>>       //
>>       MapLayer myGridLayer = new DefaultMapLayer(myGrid, myStyle) {
>>           public void dataChanged() {
>>               sourceListener.changed(null);
>>           }
>>       };
>>
>>       myMapContext.addLayer(myGridLayer);
>>
>>       // later when you've changed the grid data
>>       myGridLayer.dataChanged();
>>
>> Fingers crossed...
>>
>> Michael
>
>
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