Move Commons GIS to Connect

[lgpl/argeo-commons.git] / gis / plugins / org.argeo.gis.ui.rcp.swing / src / main / java / org / argeo / gis / ui / rcp / swing / SwingMapViewer.java

diff --git a/gis/plugins/org.argeo.gis.ui.rcp.swing/src/main/java/org/argeo/gis/ui/rcp/swing/SwingMapViewer.java b/gis/plugins/org.argeo.gis.ui.rcp.swing/src/main/java/org/argeo/gis/ui/rcp/swing/SwingMapViewer.java
index b2f21489a06a028574144b321f417a328de9d445..32d03c19285d656e6b99a0a3fa9c119c83ed87fa 100644 (file)
--- a/gis/plugins/org.argeo.gis.ui.rcp.swing/src/main/java/org/argeo/gis/ui/rcp/swing/SwingMapViewer.java
+++ b/gis/plugins/org.argeo.gis.ui.rcp.swing/src/main/java/org/argeo/gis/ui/rcp/swing/SwingMapViewer.java
@@ -9,6 +9,7 @@ import java.util.Map;
 
 import javax.jcr.Node;
 
+import org.argeo.ArgeoException;
 import org.argeo.geotools.jcr.GeoJcrMapper;
 import org.argeo.geotools.styling.StylingUtils;
 import org.argeo.gis.ui.AbstractMapViewer;
@@ -21,11 +22,13 @@ import org.geotools.map.DefaultMapContext;
 import org.geotools.map.DefaultMapLayer;
 import org.geotools.map.MapContext;
 import org.geotools.map.MapLayer;
+import org.geotools.referencing.CRS;
 import org.geotools.renderer.lite.StreamingRenderer;
 import org.geotools.styling.Style;
 import org.geotools.swing.JMapPane;
 import org.opengis.feature.simple.SimpleFeature;
 import org.opengis.feature.simple.SimpleFeatureType;
+import org.opengis.referencing.crs.CoordinateReferenceSystem;
 
 /** Map viewer implementation based on GeoTools Swing components. */
 public class SwingMapViewer extends AbstractMapViewer {
@@ -50,7 +53,6 @@ public class SwingMapViewer extends AbstractMapViewer {
                versatileZoomTool = new VersatileZoomTool();
                mapPane.setCursorTool(versatileZoomTool);
                mapPane.setBackground(Color.WHITE);
-
                frame.add(mapPane);
 
                setControl(embedded);
@@ -85,7 +87,31 @@ public class SwingMapViewer extends AbstractMapViewer {
 
        public void setAreaOfInterest(ReferencedEnvelope areaOfInterest) {
                // mapPane.getMapContext().setAreaOfInterest(areaOfInterest);
-               mapPane.setDisplayArea(areaOfInterest);
+               CoordinateReferenceSystem crs = mapPane.getMapContext()
+                               .getCoordinateReferenceSystem();
+
+               ReferencedEnvelope toDisplay;
+               if (crs != null)
+                       try {
+                               toDisplay = areaOfInterest.transform(crs, true);
+                       } catch (Exception e) {
+                               throw new ArgeoException("Cannot reproject " + areaOfInterest,
+                                               e);
+                       }
+               else
+                       toDisplay = areaOfInterest;
+               mapPane.setDisplayArea(toDisplay);
+       }
+
+       public void setCoordinateReferenceSystem(String crs) {
+               try {
+                       CoordinateReferenceSystem crsObj = CRS.decode(crs);
+                       mapPane.getMapContext().setCoordinateReferenceSystem(crsObj);
+                       mapPane.repaint();
+               } catch (Exception e) {
+                       throw new ArgeoException("Cannot set CRS '" + crs + "'", e);
+               }
+
        }
 
 }