First working GIS

[lgpl/argeo-commons.git] / gis / plugins / org.argeo.gis.ui / src / main / java / org / argeo / gis / ui / views / LayersView.java

diff --git a/gis/plugins/org.argeo.gis.ui/src/main/java/org/argeo/gis/ui/views/LayersView.java b/gis/plugins/org.argeo.gis.ui/src/main/java/org/argeo/gis/ui/views/LayersView.java
new file mode 100644 (file)
index 0000000..56fb03f
--- /dev/null
+++ b/gis/plugins/org.argeo.gis.ui/src/main/java/org/argeo/gis/ui/views/LayersView.java
@@ -0,0 +1,152 @@
+package org.argeo.gis.ui.views;
+
+import org.argeo.eclipse.ui.TreeParent;
+import org.eclipse.jface.viewers.ITreeContentProvider;
+import org.eclipse.jface.viewers.LabelProvider;
+import org.eclipse.jface.viewers.TreeViewer;
+import org.eclipse.jface.viewers.Viewer;
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.ui.IViewSite;
+import org.eclipse.ui.part.ViewPart;
+import org.geotools.map.MapContext;
+import org.geotools.map.MapLayer;
+import org.geotools.map.event.MapLayerListEvent;
+import org.geotools.map.event.MapLayerListListener;
+
+public class LayersView extends ViewPart implements MapLayerListListener {
+       public final static String ID = "org.argeo.gis.ui.layersView";
+
+       private TreeViewer viewer;
+
+       private MapContext mapContext;
+
+       @Override
+       public void createPartControl(Composite parent) {
+               viewer = new TreeViewer(parent, SWT.MULTI | SWT.H_SCROLL | SWT.V_SCROLL);
+               viewer.setContentProvider(new MapContextContentProvider());
+               viewer.setLabelProvider(new MapContextLabelProvider());
+               viewer.setInput(getViewSite());
+       }
+
+       public void setMapContext(MapContext mapContext) {
+               viewer.setInput(mapContext);
+               if (this.mapContext != null) {
+                       this.mapContext.removeMapLayerListListener(this);
+               }
+               this.mapContext = mapContext;
+               this.mapContext.addMapLayerListListener(this);
+       }
+
+       /*
+        * MAP LAYER LIST LISTENER
+        */
+       public void layerAdded(MapLayerListEvent event) {
+               viewer.refresh();
+       }
+
+       public void layerRemoved(MapLayerListEvent event) {
+               viewer.refresh();
+       }
+
+       public void layerChanged(MapLayerListEvent event) {
+               viewer.refresh();
+       }
+
+       public void layerMoved(MapLayerListEvent event) {
+               viewer.refresh();
+       }
+
+       /*
+        * VIEW
+        */
+       @Override
+       public void setFocus() {
+               viewer.getTree().setFocus();
+       }
+
+       public void refresh() {
+               viewer.refresh();
+       }
+
+       private class MapContextContentProvider implements ITreeContentProvider {
+
+               public void dispose() {
+               }
+
+               public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
+               }
+
+               public Object[] getElements(Object inputElement) {
+                       if (inputElement instanceof MapContext)
+                               return new Object[] { new MapContextNode(
+                                               (MapContext) inputElement) };
+                       else if (inputElement instanceof IViewSite)
+                               return new Object[] {};
+                       else
+                               return getChildren(inputElement);
+               }
+
+               public Object[] getChildren(Object element) {
+                       if (element instanceof MapContextNode) {
+                               MapContextNode mapContextNode = (MapContextNode) element;
+                               return mapContextNode.getMapContext().getLayers();
+                       } else if (element instanceof MapLayer) {
+                               // MapLayer mapLayer = (MapLayer) element;
+
+                       } else if (element instanceof TreeParent) {
+                               return ((TreeParent) element).getChildren();
+                       }
+                       return new Object[0];
+               }
+
+               public Object getParent(Object element) {
+                       if (element instanceof TreeParent) {
+                               return ((TreeParent) element).getParent();
+                       }
+                       return null;
+               }
+
+               public boolean hasChildren(Object element) {
+                       if (element instanceof MapContextNode) {
+                               return true;
+                       } else if (element instanceof TreeParent) {
+                               return ((TreeParent) element).hasChildren();
+                       } else if (element instanceof MapLayer) {
+                               return false;
+                       }
+                       return false;
+               }
+
+       }
+
+       private class MapContextLabelProvider extends LabelProvider {
+
+               @Override
+               public String getText(Object element) {
+                       if (element instanceof MapLayer) {
+                               MapLayer mapLayer = (MapLayer) element;
+                               String title = mapLayer.getTitle();
+                               if (title == null || title.trim().equals(""))
+                                       title = mapLayer.toString();
+                               return title;
+                       }
+                       return super.getText(element);
+               }
+
+       }
+
+       private class MapContextNode extends TreeParent {
+               private MapContext mapContext;
+
+               public MapContextNode(MapContext mapContext) {
+                       super("Map Context");
+                       this.mapContext = mapContext;
+               }
+
+               public MapContext getMapContext() {
+                       return mapContext;
+               }
+
+       }
+}