Merge remote-tracking branch 'origin/unstable' into testing

[gpl/argeo-suite.git] / org.argeo.app.ui / src / org / argeo / app / ui / openlayers / OverviewMap.java

diff --git a/org.argeo.app.ui/src/org/argeo/app/ui/openlayers/OverviewMap.java b/org.argeo.app.ui/src/org/argeo/app/ui/openlayers/OverviewMap.java
new file mode 100644 (file)
index 0000000..dbb3119
--- /dev/null
+++ b/org.argeo.app.ui/src/org/argeo/app/ui/openlayers/OverviewMap.java
@@ -0,0 +1,66 @@
+package org.argeo.app.ui.openlayers;
+
+import java.util.List;
+
+import javax.jcr.Node;
+import javax.jcr.RepositoryException;
+import javax.jcr.observation.Event;
+import javax.jcr.observation.EventIterator;
+import javax.jcr.observation.EventListener;
+import javax.jcr.query.Query;
+
+import org.argeo.app.api.EntityType;
+import org.argeo.cms.swt.CmsSwtUtils;
+import org.argeo.cms.ui.CmsUiProvider;
+import org.argeo.jcr.JcrException;
+import org.argeo.jcr.JcrUtils;
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.layout.GridLayout;
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.swt.widgets.Control;
+
+/** Displays an overview map. */
+public class OverviewMap implements CmsUiProvider {
+
+       @Override
+       public Control createUi(Composite parent, Node context) throws RepositoryException {
+               parent.setLayout(new GridLayout());
+               refreshUi(parent, context);
+
+               try {
+                       String[] nodeTypes = { EntityType.geopoint.get() };
+                       context.getSession().getWorkspace().getObservationManager().addEventListener(new EventListener() {
+
+                               @Override
+                               public void onEvent(EventIterator events) {
+                                       if (!parent.isDisposed())
+                                               parent.getDisplay().asyncExec(() -> {
+                                                       try {
+                                                               refreshUi(parent, context);
+                                                       } catch (RepositoryException e) {
+                                                               throw new JcrException(e);
+                                                       }
+                                               });
+                               }
+                       }, Event.PROPERTY_CHANGED | Event.NODE_ADDED | Event.NODE_REMOVED | Event.PROPERTY_ADDED, "/", true, null,
+                                       nodeTypes, false);
+               } catch (RepositoryException e) {
+                       throw new IllegalStateException("Cannot add JCR observer", e);
+               }
+
+               return parent;
+       }
+
+       protected void refreshUi(Composite parent, Node context) throws RepositoryException {
+               CmsSwtUtils.clear(parent);
+               Query query = context.getSession().getWorkspace().getQueryManager()
+                               .createQuery("SELECT * FROM [" + EntityType.geopoint.get() + "]", Query.JCR_SQL2);
+               List<Node> geoPoints = JcrUtils.nodeIteratorToList(query.execute().getNodes());
+               OpenLayersMap map = new OpenLayersMap(parent, SWT.NONE, getClass().getResource("map-osm.html"));
+               map.setLayoutData(CmsSwtUtils.fillAll());
+
+               // apafMap.setZoom(7);
+               // apafMap.setCenter(-2.472, 8.010);
+               map.addPoints(geoPoints);
+       }
+}