/** Clears all features from the selection layer. */
public void clearSelectedFeatures() {
ExtendedLayerGraphics selectionLayer =
(ExtendedLayerGraphics) getSolaLayers().get(SELECTION_LAYER_NAME);
if (selectionLayer != null && selectionLayer.getFeatureCollection().size() > 0) {
selectionLayer.removeFeatures(false);
}
}
/** Retrieves the selected features from the selection layer. */
public SimpleFeatureSource getSelectedFeatureSource() {
ExtendedLayerGraphics selectionLayer =
(ExtendedLayerGraphics) getSolaLayers().get(SELECTION_LAYER_NAME);
if (selectionLayer != null && selectionLayer.getFeatureCollection().size() > 0) {
return selectionLayer.getFeatureSource();
}
return null;
}
/**
* Moves the selection layer to the top of the list of layers so that selected objects are always
* displayed on top of other layers.
*/
public void moveSelectionLayer() {
ExtendedLayerGraphics selectionLayer =
(ExtendedLayerGraphics) getSolaLayers().get(SELECTION_LAYER_NAME);
if (selectionLayer != null) {
Layer mapLayer = selectionLayer.getMapLayers().get(0);
int currentPos = this.getMapContent().layers().indexOf(mapLayer);
this.getMapContent().moveLayer(currentPos, this.getMapContent().layers().size() - 1);
}
}
/**
* Adds the specified feature to the selection layer.
*
* @param id The identifier for the feature
* @param geom The geometry of the feature.
*/
public void selectFeature(String id, Geometry geom) {
if (geom != null) {
ExtendedLayerGraphics selectionLayer =
(ExtendedLayerGraphics) getSolaLayers().get(SELECTION_LAYER_NAME);
if (selectionLayer != null) {
java.util.HashMap<String, Object> fieldValues = new java.util.HashMap<String, Object>();
fieldValues.put(LAYER_FIELD_GEOMETRY_TYPE, geom.getGeometryType());
selectionLayer.addFeature(id, geom, fieldValues, false);
}
}
}
/**
* It adds a graphics layer in the map
*
* @param layerName layer name
* @param layerTitle layer title
* @param geometryType geometry type for this layer
* @param styleResource the resource name .xml in the location of resources for layer styles. This
* resource location is added in the path decided in SLD_RESOURCES {
* @see org.sola.clients.geotools.ui.layers.SolaFeatureLayer}.
* @return
*/
public ExtendedLayerGraphics addLayerGraphics(
String layerName, String layerTitle, Geometries geometryType, String styleResource) {
ExtendedLayerGraphics layer = null;
try {
layer = new ExtendedLayerGraphics(layerName, geometryType, styleResource);
layer.setTitle(layerTitle);
this.addLayer(layer);
} catch (InitializeLayerException ex) {
Messaging.getInstance().show(ex.getMessage());
}
return layer;
}
/**
* Initializes the selection layer on the map control. This method should be called after all map
* layers have been added to ensure the selection layer appears on top of the other SOLA layers.
*/
public void initializeSelectionLayer() {
try {
ExtendedLayerGraphics selectionLayer =
(ExtendedLayerGraphics) getSolaLayers().get(SELECTION_LAYER_NAME);
if (selectionLayer == null) {
selectionLayer =
new ExtendedLayerGraphics(
SELECTION_LAYER_NAME,
Geometries.GEOMETRY,
SELECTION_SLD_FILE,
LAYER_FIELD_GEOMETRY_TYPE + ":String");
selectionLayer.setShowInToc(false);
this.addLayer(selectionLayer);
}
} catch (InitializeLayerException ex) {
Messaging.getInstance().show(ex.getMessage());
}
}