[EMF] Construction d'une page Property (e4)

Bonjour,

Je souhaite à partir d'un arbre eclipse pour certaines selection afficher une page de propriétés de l'élément selectionné. Le code ci-dessous correspond à mon travail. Je pense qu'il 'y a plus simple, plus efficace, plus clair.
Code:
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package galera3D.parts.explorer;
 
import galera.displayable.filter.commonFilter.provider.CommonFilterItemProviderAdapterFactory;
import galera.displayable.filter.drillholeFilter.provider.DrillholeFilterItemProviderAdapterFactory;
import galera.displayable.filter.geologicalFilter.provider.GeologicalFilterItemProviderAdapterFactory;
import galera.displayable.filter.gridFilter.provider.GridFilterItemProviderAdapterFactory;
import galera.displayable.filter.imageFilter.provider.ImageFilterItemProviderAdapterFactory;
import galera.displayable.filter.meshFilter.provider.MeshFilterItemProviderAdapterFactory;
import galera.displayable.filter.provider.FilterItemProviderAdapterFactory;
import galera.displayable.moduleVisualization.provider.ModuleVisualizationItemProviderAdapterFactory;
import galera.displayable.provider.DisplayableItemProviderAdapterFactory;
import galera.fieldProcess.processor.provider.ProcessorItemProviderAdapterFactory;
import galera.geologicalEntities.provider.GeologicalEntitiesItemProviderAdapterFactory;
import galera.geophysic.physicalProperties.provider.PhysicalPropertiesItemProviderAdapterFactory;
import galera.graphic.provider.GraphicItemProviderAdapterFactory;
import galera.kriging.provider.KrigingItemProviderAdapterFactory;
import galera.meshGrid.field.provider.FieldItemProviderAdapterFactory;
import galera.meshGrid.provider.MeshGridItemProviderAdapterFactory;
import galera.model.provider.ModelItemProviderAdapterFactory;
import galera.modelInterpolator.provider.ModelInterpolatorItemProviderAdapterFactory;
import galera.project.Group;
import galera.project.provider.ProjectItemProviderAdapterFactory;
import galera.structuralData.provider.StructuralDataItemProviderAdapterFactory;
import galera.supports.provider.SupportsItemProviderAdapterFactory;
 
import javax.annotation.PostConstruct;
import javax.inject.Inject;
import javax.inject.Named;
 
import org.eclipse.e4.core.di.annotations.Optional;
import org.eclipse.e4.ui.di.Focus;
import org.eclipse.e4.ui.services.IServiceConstants;
import org.eclipse.emf.common.util.EList;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.edit.provider.ComposedAdapterFactory;
import org.eclipse.emf.edit.provider.ItemPropertyDescriptor.PropertyValueWrapper;
import org.eclipse.emf.edit.provider.ReflectiveItemProviderAdapterFactory;
import org.eclipse.emf.edit.provider.resource.ResourceItemProviderAdapterFactory;
import org.eclipse.emf.edit.ui.provider.AdapterFactoryContentProvider;
import org.eclipse.emf.edit.ui.provider.AdapterFactoryLabelProvider;
import org.eclipse.jface.viewers.TreeViewer;
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Tree;
import org.eclipse.swt.widgets.TreeColumn;
import org.eclipse.swt.widgets.TreeItem;
import org.eclipse.ui.views.properties.IPropertyDescriptor;
import org.eclipse.ui.views.properties.IPropertySource;
 
public class PropertyEditorPart {
 
	private ComposedAdapterFactory adapterFactory;
	private TreeViewer treeViewerWithColumns;
	private AdapterFactoryContentProvider contentProvider;
	private Tree tree;
 
 
 
	/**
         * Create contents of the property page.
         * @param parent
         */
	@PostConstruct
	public void createComposite(Composite parent) {
		adapterFactory = new ComposedAdapterFactory(ComposedAdapterFactory.Descriptor.Registry.INSTANCE);
		adapterFactory.addAdapterFactory(new ResourceItemProviderAdapterFactory());
 
		adapterFactory.addAdapterFactory(new StructuralDataItemProviderAdapterFactory());
		adapterFactory.addAdapterFactory(new MeshGridItemProviderAdapterFactory());
		adapterFactory.addAdapterFactory(new FieldItemProviderAdapterFactory());
		adapterFactory.addAdapterFactory(new ProjectItemProviderAdapterFactory());
		adapterFactory.addAdapterFactory(new ModelItemProviderAdapterFactory());
		adapterFactory.addAdapterFactory(new GeologicalEntitiesItemProviderAdapterFactory());
		adapterFactory.addAdapterFactory(new SupportsItemProviderAdapterFactory());
		adapterFactory.addAdapterFactory(new ModelInterpolatorItemProviderAdapterFactory());
		adapterFactory.addAdapterFactory(new KrigingItemProviderAdapterFactory());
		adapterFactory.addAdapterFactory(new PhysicalPropertiesItemProviderAdapterFactory());
		adapterFactory.addAdapterFactory(new GraphicItemProviderAdapterFactory());
		adapterFactory.addAdapterFactory(new DisplayableItemProviderAdapterFactory());
		adapterFactory.addAdapterFactory(new FilterItemProviderAdapterFactory());
		adapterFactory.addAdapterFactory(new MeshFilterItemProviderAdapterFactory());
		adapterFactory.addAdapterFactory(new DrillholeFilterItemProviderAdapterFactory());
		adapterFactory.addAdapterFactory(new GeologicalFilterItemProviderAdapterFactory());
		adapterFactory.addAdapterFactory(new GridFilterItemProviderAdapterFactory());
		adapterFactory.addAdapterFactory(new CommonFilterItemProviderAdapterFactory());
		adapterFactory.addAdapterFactory(new ImageFilterItemProviderAdapterFactory());
		adapterFactory.addAdapterFactory(new ModuleVisualizationItemProviderAdapterFactory());
		adapterFactory.addAdapterFactory(new ProcessorItemProviderAdapterFactory());
 
		adapterFactory.addAdapterFactory(new ReflectiveItemProviderAdapterFactory());
 
 
		treeViewerWithColumns = new TreeViewer(parent, SWT.MULTI);
 
		tree = treeViewerWithColumns.getTree();
		tree.setLayoutData(new FillLayout());
		tree.setHeaderVisible(true);
		tree.setLinesVisible(true);
 
		TreeColumn objectColumn = new TreeColumn(tree, SWT.NONE);
		objectColumn.setText("Attribute");
		objectColumn.setResizable(true);
		objectColumn.setWidth(250);
 
		TreeColumn valueColumn = new TreeColumn(tree, SWT.NONE);
		valueColumn.setText("Value");
		valueColumn.setResizable(true);
		valueColumn.setWidth(200);
 
		TreeColumn infoColumn = new TreeColumn(tree, SWT.NONE);
		infoColumn.setText("Info on  parameter");
		infoColumn.setResizable(true);
		infoColumn.setWidth(200);
 
		treeViewerWithColumns.setColumnProperties(new String [] {"a", "b", "c"});
		contentProvider =  new AdapterFactoryContentProvider(adapterFactory);
		treeViewerWithColumns.setContentProvider(contentProvider);
		treeViewerWithColumns.setLabelProvider(new AdapterFactoryLabelProvider(adapterFactory));
		treeViewerWithColumns.getLabelProvider();
	}
 
 
	@Inject
	public void receiveSelection(@Optional @Named(IServiceConstants.ACTIVE_SELECTION) EObject o) {
		if(o != null && treeViewerWithColumns != null && !(o instanceof Group)) {
			treeViewerWithColumns.setInput(o);
			IPropertySource tt = contentProvider.getPropertySource(o);
			String attributes, values;
			for(Object e: contentProvider.getChildren(o)) {
				System.out.println("Children" + e);
			}
			for(IPropertyDescriptor x: tt.getPropertyDescriptors()) {
				TreeItem treeItem = new TreeItem(tree, 0);
				attributes = x.getDisplayName();
				try {
					PropertyValueWrapper  thisObject = (PropertyValueWrapper) (tt.getPropertyValue(x.getId()));
					if (((PropertyValueWrapper) thisObject).getEditableValue(thisObject) instanceof EList<?>) {
						treeItem.setText(new String[] {attributes, " ", " "});
						String[] val = ((PropertyValueWrapper) thisObject).getText(thisObject).split(", ");
						for(String s: val) {
							TreeItem subtreeItem = new TreeItem(tree, SWT.NONE);
							subtreeItem.setText(new String[] {"     " + x.getId().toString(), s, x.getDescription()});
						}
					}
					else {
						values = ((PropertyValueWrapper) thisObject).getText(thisObject);
						treeItem.setText(new String[] {attributes, values, x.getDescription()});
					}
				}
				catch (Exception e){
					values = "null";
					treeItem.setText(new String[] {attributes, values});
				}
			}
		}
	}
 
 
	@Focus
	public boolean setFocus() {
		if(treeViewerWithColumns != null) return treeViewerWithColumns.getControl().setFocus();
		return false;
	}
 
}
Sur l'image ci dessous, je ne suis pas satisfait pour l'affichage de histograms et values. Que puis-je faire?

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