first version of annotation view

refs 1841

org.fortiss.tooling.base.ui/trunk/META-INF/MANIFEST.MF

@@ -11,6 +11,7 @@ Bundle-ActivationPolicy: lazy
 Bundle-RequiredExecutionEnvironment: JavaSE-1.6
 Bundle-Vendor: fortiss GmbH
 Export-Package: org.fortiss.tooling.base.ui,
+ org.fortiss.tooling.base.ui.annotation,
  org.fortiss.tooling.base.ui.compose,
  org.fortiss.tooling.base.ui.contentprovider,
  org.fortiss.tooling.base.ui.databinding,

org.fortiss.tooling.base.ui/trunk/src/org/fortiss/tooling/base/ui/annotation/AnnotationViewPartBase.java

+/*--------------------------------------------------------------------------+
+$Id$
+|                                                                          |
+| Copyright 2013 ForTISS GmbH                     |
+|                                                                          |
+| Licensed under the Apache License, Version 2.0 (the "License");          |
+| you may not use this file except in compliance with the License.         |
+| You may obtain a copy of the License at                                  |
+|                                                                          |
+|    http://www.apache.org/licenses/LICENSE-2.0                            |
+|                                                                          |
+| Unless required by applicable law or agreed to in writing, software      |
+| distributed under the License is distributed on an "AS IS" BASIS,        |
+| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
+| See the License for the specific language governing permissions and      |
+| limitations under the License.                                           |
++--------------------------------------------------------------------------*/
+package org.fortiss.tooling.base.ui.annotation;
+
+import org.eclipse.emf.ecore.EObject;
+import org.eclipse.jface.viewers.ISelection;
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.ui.ISelectionListener;
+import org.eclipse.ui.IWorkbenchPart;
+import org.eclipse.ui.part.ViewPart;
+import org.fortiss.tooling.base.model.element.IAnnotatedSpecification;
+import org.fortiss.tooling.base.ui.editpart.ElementEditPartBase;
+import org.fortiss.tooling.kernel.ui.util.SelectionUtils;
+
+/**
+ * Base class for displaying {@link IAnnotatedSpecification}s
+ * 
+ * @author eder
+ * @author $Author$
+ * @version $Rev$
+ * @ConQAT.Rating RED Hash:
+ */
+public abstract class AnnotationViewPartBase<T extends EObject, V extends IAnnotatedSpecification>
+		extends ViewPart implements ISelectionListener {
+
+	/** The currently selected Object */
+	private T currentlySelectedObject;
+
+	/** The annotated specification of the {@link #currentlySelectedObject} */
+	private V annotatedSpecification;
+
+	/** {@inheritDoc} */
+	@Override
+	public void createPartControl(Composite parent) {
+		getSite().getWorkbenchWindow().getSelectionService().addSelectionListener(this);
+	}
+
+	/** {@inheritDoc} */
+	@SuppressWarnings("unchecked")
+	@Override
+	public void selectionChanged(IWorkbenchPart part, ISelection selection) {
+		currentlySelectedObject = null;
+		currentlySelectedObject = SelectionUtils.checkAndPickFirst(selection, getT());
+
+		if(currentlySelectedObject == null) {
+			ElementEditPartBase<?> editPart =
+					SelectionUtils.checkAndPickFirst(selection, ElementEditPartBase.class);
+			if(editPart != null)
+				currentlySelectedObject = (T)editPart.getModel();
+		}
+
+		// annotatedSpecification = extractAnnotatedSpecification();
+	}
+
+	/** Extracts the {@link IAnnotatedSpecification} from {@link #currentlySelectedObject} */
+	protected abstract V extractAnnotatedSpecification();
+
+	/** Returns the annotated specification. Null if there is none. */
+	public V getAnnotatedSpecification() {
+		return annotatedSpecification;
+	}
+
+	/** Returns currentlySelectedObject. Null if there is none. */
+	public T getCurrentlySelectedObject() {
+		return currentlySelectedObject;
+	}
+
+	/** Returns the class of type T. Must not be null! */
+	protected abstract Class<T> getT();
+
+	/** {@inheritDoc} */
+	@Override
+	public void dispose() {
+		getSite().getWorkbenchWindow().getSelectionService().removeSelectionListener(this);
+		super.dispose();
+	}
+
+}