Merge branch 'master' of https://git.fortiss.org/af3/kernel.git into 3672

org.fortiss.tooling.base/src/org/fortiss/tooling/base/model/base/impl/.ratings

-DerivedAnnotationBaseStaticImpl.java 0b5a8e36f66c937b1659f0b73a0cf0428337e364 GREEN
+DerivedAnnotationBaseStaticImpl.java 25b4a0b00fe68a1027ee81e52697e03988862373 GREEN
 LibraryElementBaseStaticImpl.java 13222726153d5159994866795b059a4cc3522434 GREEN

org.fortiss.tooling.base/src/org/fortiss/tooling/base/model/base/impl/DerivedAnnotationBaseStaticImpl.java

@@ -37,21 +37,20 @@ public class DerivedAnnotationBaseStaticImpl {
 	 * @return See above.
 	 */
 	public static <T> T getValue(IDerivedAnnotation<T> annotation) {
-		T derivedValue = null;
-		if(annotation.getUserAnnotatedValue() != null) {
-			if(annotation.isUserAnnotatedValuePreferred()) {
-				// User annotated value is available and preferred -> return it
-				return annotation.getUserAnnotatedValue();
-			}
-			derivedValue = annotation.getDerivedValue();
-			if(derivedValue == null) {
-				// Derived value would be preferred, but it is not available -> return user
-				// annotated value
-				return annotation.getUserAnnotatedValue();
-			}
+		T userAnnotatedValue = annotation.getUserAnnotatedValue();
+		if(annotation.isUserAnnotatedValuePreferred() && userAnnotatedValue != null) {
+			// User annotated value is preferred and exists.
+			return userAnnotatedValue;
 		}
 
-		// Use cached result of derived value if it is available
-		return derivedValue != null ? derivedValue : annotation.getDerivedValue();
+		T derivedValue = annotation.getDerivedValue();
+		if(derivedValue != null) {
+			// User annotated value is not preferred: use the derived value.
+			return derivedValue;
+		}
+
+		// Derived value does not exist: return the user annotated value, even if it is not
+		// preferred. If neither the derived or the user annotated values exist, we return null.
+		return userAnnotatedValue;
 	}
 }

org.fortiss.tooling.kernel.ui/src/org/fortiss/tooling/kernel/ui/extension/base/.ratings

@@ -10,7 +10,7 @@ ModelEditorBindingBase.java 4c5ac569c0b6e7678fc8191096b26dfd09fdcb98 GREEN
 ModelElementHandlerBase.java 384727748f125c9d43f19d9c0eba4ba1be5a7a26 GREEN
 MultiEObjectActionBase.java 9e237d8ea640c4194e4877af4a9cfce88698e543 GREEN
 NamedCommentedModelElementHandlerBase.java 681b98b50b362f01abb7a36f108f4f11b9e51829 GREEN
-PropertySectionBase.java 7b893ca28d86a415d9fc7a818e65c04ed244e896 GREEN
+PropertySectionBase.java 20fb1daea544123ea941743aafeb9ac59daf5356 GREEN
 TutorialStepUIAtomicBase.java cea2a158158b476de2108d2309afcf47f217b6d9 GREEN
 TutorialStepUIAtomicWithWhitelistBase.java a9788ae514f62d27169c737ef59fb583234b5d43 GREEN
 TutorialStepUICompositeBase.java 8225210eacb5b88de47d78280c5819f572f00ffa GREEN

org.fortiss.tooling.kernel.ui/src/org/fortiss/tooling/kernel/ui/extension/base/PropertySectionBase.java

@@ -25,6 +25,7 @@ import static org.eclipse.core.databinding.conversion.StringToNumberConverter.to
 import static org.fortiss.tooling.kernel.ui.databinding.FloatValidator.FLOAT_VALIDATOR;
 import static org.fortiss.tooling.kernel.ui.databinding.IntValidator.INT_VALIDATOR;
 import static org.fortiss.tooling.kernel.ui.databinding.NumberPositiveValidator.NUMBER_POSITIVE_VALIDATOR;
+import static org.fortiss.tooling.kernel.ui.databinding.NumberPositiveZeroValidator.NUMBER_POSITIVE_ZERO_VALIDATOR;
 import static org.fortiss.tooling.kernel.ui.util.DataBindingUtils.DECORATION_KEY;
 import static org.fortiss.tooling.kernel.ui.util.DataBindingUtils.performComplexTextBinding;
 import static org.fortiss.tooling.kernel.ui.util.WidgetsFactory.createTextWithUndo;
@@ -448,6 +449,11 @@ public abstract class PropertySectionBase extends AbstractPropertySection {
 		bindIntegerValue(text, observedValue, NUMBER_POSITIVE_VALIDATOR);
 	}
 
+	/** Binds a positive or zero integer value. */
+	protected void bindPositiveOrZeroIntegerValue(Control text, IObservableValue<?> observedValue) {
+		bindIntegerValue(text, observedValue, NUMBER_POSITIVE_ZERO_VALIDATOR);
+	}
+
 	/** Binds a integer value. */
 	protected void bindIntegerValue(Control text, IObservableValue<?> observedValue,
 			IValidator numberValidator) {