- IAnnotationValueProvider: Introduce canEdit() methods

- Add color code for uneditable annotations values
  - light gray: annotation does not exist for the given model elemnt
  - light blue: annotation is a derived / computed value
refs 1841

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

@@ -94,6 +94,36 @@ public final class AnnotationEntry {
 		throw new Exception("Could not find a AnnotationValueProvider for " + clazz.toString());
 	}
 
+	/** Predicate if the given annotation can be edited. */
+	public boolean canEdit(Class<? extends IAnnotatedSpecification> clazz) {
+		for(IAnnotatedSpecification s : specificationsList) {
+			if(clazz.isInstance(s)) {
+				try {
+					return providerSpecMapping.get(clazz).canEdit(s);
+				} catch(Exception e) {
+					return false;
+				}
+			}
+		}
+
+		return false;
+	}
+
+	/** Predicate if the given annotation can be edited. */
+	public boolean canEdit(Class<? extends IAnnotatedSpecification> clazz, String instanceKey) {
+		for(IAnnotatedSpecification s : specificationsList) {
+			if(clazz.isInstance(s)) {
+				try {
+					return providerSpecMapping.get(clazz).canEdit(s, instanceKey);
+				} catch(Exception e) {
+					return false;
+				}
+			}
+		}
+
+		return false;
+	}
+
 	/** Returns the annotation value */
 	public <V> V getSpecificationValue(Class<? extends IAnnotatedSpecification> clazz,
 			String instanceKey) {

org.fortiss.tooling.base.ui/trunk/src/org/fortiss/tooling/base/ui/annotation/editingsupport/AnnotationEditingSupportBase.java

@@ -51,8 +51,8 @@ public abstract class AnnotationEditingSupportBase extends EditingSupport {
 	@Override
 	protected boolean canEdit(Object element) {
 		if(element instanceof AnnotationEntry) {
-			AnnotationEntry data = (AnnotationEntry)element;
-			return data.getSpecificationValue(specClass) != null;
+			AnnotationEntry annotationEntry = (AnnotationEntry)element;
+			return annotationEntry.canEdit(specClass);
 		}
 
 		return true;

org.fortiss.tooling.base.ui/trunk/src/org/fortiss/tooling/base/ui/annotation/editingsupport/MultiInstanceAnnotationTextEditingSupport.java

@@ -20,7 +20,6 @@ package org.fortiss.tooling.base.ui.annotation.editingsupport;
 import org.eclipse.jface.viewers.ColumnViewer;
 import org.fortiss.tooling.base.model.element.IAnnotatedSpecification;
 import org.fortiss.tooling.base.ui.annotation.AnnotationEntry;
-import org.fortiss.tooling.base.ui.annotation.IAnnotationValueService;
 import org.fortiss.tooling.base.ui.annotation.valueprovider.DynamicInstanceAnnotationValueProviderBase;
 
 /**
@@ -63,22 +62,9 @@ public class MultiInstanceAnnotationTextEditingSupport extends TextEditingSuppor
 	@Override
 	protected boolean canEdit(Object element) {
 		if(element instanceof AnnotationEntry) {
-			AnnotationEntry data = (AnnotationEntry)element;
+			AnnotationEntry annotationEntry = (AnnotationEntry)element;
 
-			// Check if a value already exists.
-			if(data.getSpecificationValue(specClass, instanceKey) != null) {
-				return true;
-			}
-
-			// For dynamically instantiated annotations, check if the key exists with at least one
-			// model element.
-			for(AnnotationEntry entry : IAnnotationValueService.INSTANCE.getValues(data
-					.getModelElement())) {
-
-				if(entry.getInstanceKeys(specClass).contains(instanceKey)) {
-					return true;
-				}
-			}
+			return annotationEntry.canEdit(specClass);
 		}
 
 		return false;

org.fortiss.tooling.base.ui/trunk/src/org/fortiss/tooling/base/ui/annotation/valueprovider/DerivedAnnotationValueProviderBase.java

@@ -43,6 +43,12 @@ public abstract class DerivedAnnotationValueProviderBase<T extends IDerivedAnnot
 		super(annotatedSpecificationEClass);
 	}
 
+	/** {@inheritDoc} */
+	@Override
+	public boolean canEdit(T specification, String instanceKey) {
+		return false;
+	}
+
 	/** {@inheritDoc} */
 	@SuppressWarnings("unchecked")
 	@Override

org.fortiss.tooling.base.ui/trunk/src/org/fortiss/tooling/base/ui/annotation/valueprovider/EStructuralFeatureValueProviderBase.java

@@ -166,6 +166,12 @@ public abstract class EStructuralFeatureValueProviderBase<T extends IAnnotatedSp
 						((EAttribute)structuralFeature).getEAttributeType(), value));
 	}
 
+	/** {@inheritDoc} */
+	@Override
+	public boolean canEdit(T specification, String instanceKey) {
+		return true;
+	}
+
 	/** {@inheritDoc} */
 	@SuppressWarnings("unchecked")
 	@Override

org.fortiss.tooling.base.ui/trunk/src/org/fortiss/tooling/base/ui/annotation/valueprovider/IAnnotationValueProvider.java

@@ -80,6 +80,12 @@ public interface IAnnotationValueProvider<T extends IAnnotatedSpecification> ext
 	 */
 	public boolean setAnnotationName(String name, T specification);
 
+	/** Predicate if the given annotation can be edited. */
+	public boolean canEdit(T specification);
+
+	/** Predicate if the given annotation can be edited. */
+	public boolean canEdit(T specification, String instanceKey);
+
 	/** Returns the value of the annotation. */
 	public <U> U getAnnotationValue(T specification) throws Exception;
 

org.fortiss.tooling.base.ui/trunk/src/org/fortiss/tooling/base/ui/annotation/valueprovider/ValueProviderBase.java

@@ -104,6 +104,12 @@ public abstract class ValueProviderBase<T extends IAnnotatedSpecification> imple
 		return false;
 	}
 
+	/** {@inheritDoc} */
+	@Override
+	public boolean canEdit(T specification) {
+		return canEdit(specification, DEFAULT_KEY);
+	}
+
 	/** {@inheritDoc} */
 	@Override
 	public <U> U getAnnotationValue(T specification, String instanceKey) throws Exception {

org.fortiss.tooling.base.ui/trunk/src/org/fortiss/tooling/base/ui/annotation/view/AnnotationLabelProvider.java

@@ -21,6 +21,7 @@ import org.eclipse.jface.viewers.ColumnLabelProvider;
 import org.eclipse.swt.graphics.Color;
 import org.eclipse.wb.swt.SWTResourceManager;
 import org.fortiss.tooling.base.model.element.IAnnotatedSpecification;
+import org.fortiss.tooling.base.model.element.IDerivedAnnotation;
 import org.fortiss.tooling.base.ui.annotation.AnnotationEntry;
 
 /**
@@ -80,12 +81,20 @@ public class AnnotationLabelProvider extends ColumnLabelProvider {
 	@Override
 	public Color getBackground(Object element) {
 		if(element instanceof AnnotationEntry) {
-			AnnotationEntry data = (AnnotationEntry)element;
-			if(data.getModelElement().equals(parentView.getCurrentlySelectedObject())) {
+			AnnotationEntry annotationEntry = (AnnotationEntry)element;
+			if(annotationEntry.getModelElement().equals(parentView.getCurrentlySelectedObject())) {
 				return SWTResourceManager.getColor(0, 255, 0);
 			}
+
+			if(!annotationEntry.canEdit(specClass, instanceKey)) {
+				if(IDerivedAnnotation.class.isAssignableFrom(specClass) &&
+						annotationEntry.getSpecificationValue(specClass, instanceKey) != null) {
+					return SWTResourceManager.getColor(200, 240, 250);
+				}
+				return SWTResourceManager.getColor(230, 230, 230);
+			}
+
 		}
 		return super.getBackground(element);
 	}
-
 }