[1237] Add support for ViewUsage in General View.

CHANGELOG.adoc

@@ -1,6 +1,23 @@
 = Changelog
 
-== v2025.4.0 (work in progress)
+== v2025.6.0 (work in progress)
+
+=== Shapes
+
+=== Breaking changes
+
+=== Dependency update
+
+=== Bug fixes
+
+=== Improvements
+
+=== New features
+
+- https://github.com/eclipse-syson/syson/issues/1237[#1237] [general-view] Add `ViewUsage` node in the General View.
+
+
+== v2025.4.0
 
 === Shapes
 

backend/application/syson-application-configuration/src/main/java/org/eclipse/syson/application/nodes/SysMLViewFrameNodeStyle.java

@@ -0,0 +1,131 @@
+/*******************************************************************************
+ * Copyright (c) 2025 Obeo.
+ * This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v2.0
+ * which accompanies this distribution, and is available at
+ * https://www.eclipse.org/legal/epl-2.0/
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ *
+ * Contributors:
+ *     Obeo - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.syson.application.nodes;
+
+import java.text.MessageFormat;
+import java.util.Objects;
+
+import org.eclipse.sirius.components.annotations.Immutable;
+import org.eclipse.sirius.components.diagrams.INodeStyle;
+import org.eclipse.sirius.components.diagrams.LineStyle;
+
+/**
+ * The SysML view frame node style.
+ *
+ * @author frouene
+ */
+@Immutable
+public final class SysMLViewFrameNodeStyle implements INodeStyle {
+
+    private String background;
+
+    private String borderColor;
+
+    private int borderSize;
+
+    private LineStyle borderStyle;
+
+    private int borderRadius;
+
+    private SysMLViewFrameNodeStyle() {
+        // Prevent instantiation
+    }
+
+    public static Builder newSysMLViewFrameNodeStyle() {
+        return new Builder();
+    }
+
+    public String getBackground() {
+        return this.background;
+    }
+
+    public String getBorderColor() {
+        return this.borderColor;
+    }
+
+    public int getBorderSize() {
+        return this.borderSize;
+    }
+
+    public LineStyle getBorderStyle() {
+        return this.borderStyle;
+    }
+
+    public int getBorderRadius() {
+        return this.borderRadius;
+    }
+
+    @Override
+    public String toString() {
+        String pattern = "{0} '{'color: {1}, border: '{' background: {2}, size: {3}, style: {4} '}''}'";
+        return MessageFormat.format(pattern, this.getClass().getSimpleName(), this.background, this.borderColor, this.borderSize, this.borderStyle);
+    }
+
+    /**
+     * The builder used to create the view frame node style.
+     *
+     * @author frouene
+     */
+    @SuppressWarnings("checkstyle:HiddenField")
+    public static final class Builder {
+
+        private String background;
+
+        private String borderColor;
+
+        private int borderSize;
+
+        private LineStyle borderStyle;
+
+        private int borderRadius;
+
+        private Builder() {
+            // Prevent instantiation
+        }
+
+        public Builder background(String background) {
+            this.background = Objects.requireNonNull(background);
+            return this;
+        }
+
+        public Builder borderColor(String borderColor) {
+            this.borderColor = Objects.requireNonNull(borderColor);
+            return this;
+        }
+
+        public Builder borderSize(int borderSize) {
+            this.borderSize = borderSize;
+            return this;
+        }
+
+        public Builder borderStyle(LineStyle borderStyle) {
+            this.borderStyle = Objects.requireNonNull(borderStyle);
+            return this;
+        }
+
+        public Builder borderRadius(int borderRadius) {
+            this.borderRadius = borderRadius;
+            return this;
+        }
+
+        public SysMLViewFrameNodeStyle build() {
+            SysMLViewFrameNodeStyle nodeStyleDescription = new SysMLViewFrameNodeStyle();
+            nodeStyleDescription.background = Objects.requireNonNull(this.background);
+            nodeStyleDescription.borderColor = Objects.requireNonNull(this.borderColor);
+            nodeStyleDescription.borderSize = this.borderSize;
+            nodeStyleDescription.borderStyle = Objects.requireNonNull(this.borderStyle);
+            nodeStyleDescription.borderRadius = this.borderRadius;
+            return nodeStyleDescription;
+        }
+    }
+}

backend/application/syson-application-configuration/src/main/java/org/eclipse/syson/application/nodes/SysMLViewFrameNodeStyleProvider.java

@@ -0,0 +1,67 @@
+/*******************************************************************************
+ * Copyright (c) 2025 Obeo.
+ * This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v2.0
+ * which accompanies this distribution, and is available at
+ * https://www.eclipse.org/legal/epl-2.0/
+ *
+ * SPDX-License-Identifier: EPL-2.0
+ *
+ * Contributors:
+ *     Obeo - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.syson.application.nodes;
+
+import java.util.Optional;
+
+import org.eclipse.sirius.components.diagrams.INodeStyle;
+import org.eclipse.sirius.components.diagrams.LineStyle;
+import org.eclipse.sirius.components.view.FixedColor;
+import org.eclipse.sirius.components.view.diagram.NodeStyleDescription;
+import org.eclipse.sirius.components.view.emf.diagram.INodeStyleProvider;
+import org.eclipse.syson.sysmlcustomnodes.SysMLViewFrameNodeStyleDescription;
+import org.springframework.stereotype.Service;
+
+/**
+ * This class provides style information for the view frame custom node.
+ *
+ * @author frouene
+ */
+@Service
+public class SysMLViewFrameNodeStyleProvider implements INodeStyleProvider {
+
+    public static final String NODE_SYSML_VIEW_FRAME = "customnode:sysmlviewframe";
+
+    @Override
+    public Optional<String> getNodeType(NodeStyleDescription nodeStyle) {
+        if (nodeStyle instanceof SysMLViewFrameNodeStyleDescription) {
+            return Optional.of(NODE_SYSML_VIEW_FRAME);
+        }
+        return Optional.empty();
+    }
+
+    @Override
+    public Optional<INodeStyle> createNodeStyle(NodeStyleDescription nodeStyle, Optional<String> optionalEditingContextId) {
+        Optional<INodeStyle> iNodeStyle = Optional.empty();
+        Optional<String> nodeType = this.getNodeType(nodeStyle);
+        if (nodeType.isPresent()) {
+            return Optional.of(SysMLViewFrameNodeStyle.newSysMLViewFrameNodeStyle()
+                    .background(Optional.ofNullable(((SysMLViewFrameNodeStyleDescription) nodeStyle).getBackground())
+                            .filter(FixedColor.class::isInstance)
+                            .map(FixedColor.class::cast)
+                            .map(FixedColor::getValue)
+                            .orElse("transparent"))
+                    .borderColor(Optional.ofNullable(nodeStyle.getBorderColor())
+                            .filter(FixedColor.class::isInstance)
+                            .map(FixedColor.class::cast)
+                            .map(FixedColor::getValue)
+                            .orElse("black"))
+                    .borderSize(nodeStyle.getBorderSize())
+                    .borderStyle(LineStyle.valueOf(nodeStyle.getBorderLineStyle().getLiteral()))
+                    .borderRadius(nodeStyle.getBorderRadius())
+                    .build());
+        }
+
+        return iNodeStyle;
+    }
+}

backend/application/syson-application-configuration/src/main/resources/schema/sysmlcustomnodes.graphqls

@@ -23,4 +23,14 @@ type SysMLNoteNodeStyle {
   borderColor: String!
   borderSize: Int!
   borderStyle: LineStyle!
-}
+}
+
+extend union INodeStyle = SysMLViewFrameNodeStyle
+
+type SysMLViewFrameNodeStyle {
+  background: String!
+  borderColor: String!
+  borderSize: Int!
+  borderStyle: LineStyle!
+  borderRadius: Int!
+}

backend/application/syson-application/src/test/java/org/eclipse/syson/application/controllers/diagrams/general/view/GVTopNodeCreationTests.java

@@ -66,7 +66,6 @@
 import org.eclipse.syson.services.diagrams.api.IGivenDiagramSubscription;
 import org.eclipse.syson.sysml.Element;
 import org.eclipse.syson.sysml.LibraryPackage;
-import org.eclipse.syson.sysml.Membership;
 import org.eclipse.syson.sysml.Namespace;
 import org.eclipse.syson.sysml.SysmlPackage;
 import org.eclipse.syson.util.IDescriptionNameGenerator;
@@ -96,55 +95,38 @@
 @SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
 public class GVTopNodeCreationTests extends AbstractIntegrationTests {
 
+    private final IDescriptionNameGenerator descriptionNameGenerator = new GVDescriptionNameGenerator();
     @Autowired
     private IGivenInitialServerState givenInitialServerState;
-
     @Autowired
     private IGivenDiagramReference givenDiagram;
-
     @Autowired
     private IGivenDiagramDescription givenDiagramDescription;
-
     @Autowired
     private IGivenDiagramSubscription givenDiagramSubscription;
-
     @Autowired
     private IDiagramIdProvider diagramIdProvider;
-
     @Autowired
     private IIdentityService identityService;
-
     @Autowired
     private IObjectSearchService objectSearchService;
-
     @Autowired
     private NodeCreationTester nodeCreationTester;
-
     @Autowired
     private SemanticRunnableFactory semanticRunnableFactory;
-
     @Autowired
     private DiagramComparator diagramComparator;
-
     @Autowired
     private SelectionDialogTreeEventSubscriptionRunner selectionDialogTreeEventSubscriptionRunner;
-
     @Autowired
     private RepresentationIdBuilder representationIdBuilder;
-
     @Autowired
     private IViewDiagramDescriptionSearchService viewDiagramDescriptionSearchService;
-
     private DiagramDescriptionIdProvider diagramDescriptionIdProvider;
-
     private Step<DiagramRefreshedEventPayload> verifier;
-
     private AtomicReference<Diagram> diagram;
-
     private DiagramDescription diagramDescription;
 
-    private final IDescriptionNameGenerator descriptionNameGenerator = new GVDescriptionNameGenerator();
-
     private static Stream<Arguments> topNodeParameters() {
         return Stream.of(
                 Arguments.of(SysmlPackage.eINSTANCE.getAttributeUsage(), 3),
@@ -180,7 +162,8 @@ private static Stream<Arguments> topNodeParameters() {
                 Arguments.of(SysmlPackage.eINSTANCE.getSatisfyRequirementUsage(), 7),
                 Arguments.of(SysmlPackage.eINSTANCE.getStateUsage(), 4),
                 Arguments.of(SysmlPackage.eINSTANCE.getStateDefinition(), 4),
-                Arguments.of(SysmlPackage.eINSTANCE.getExhibitStateUsage(), 4)
+                Arguments.of(SysmlPackage.eINSTANCE.getExhibitStateUsage(), 4),
+                Arguments.of(SysmlPackage.eINSTANCE.getViewUsage(), 0)
         ).map(TestNameGenerator::namedArguments);
     }
 
@@ -222,9 +205,9 @@ public void createTopNode(EClass eClass, int compartmentCount) {
                 .ifPresentOrElse(newDiagram -> {
                     int createdNodesExpectedCount = 1 + compartmentCount;
                     new CheckDiagramElementCount(this.diagramComparator)
-                        .hasNewEdgeCount(0)
-                        .hasNewNodeCount(createdNodesExpectedCount)
-                        .check(this.diagram.get(), newDiagram);
+                            .hasNewEdgeCount(0)
+                            .hasNewNodeCount(createdNodesExpectedCount)
+                            .check(this.diagram.get(), newDiagram);
 
                     String newNodeDescriptionName = this.descriptionNameGenerator.getNodeName(eClass);
 
@@ -272,7 +255,7 @@ public void createTopNamespaceImportNode() {
                         this.diagram,
                         null,
                         creationToolId,
-                       List.of(new ToolVariable("selectedObject", libId.get().get(), ToolVariableType.OBJECT_ID)));
+                        List.of(new ToolVariable("selectedObject", libId.get().get(), ToolVariableType.OBJECT_ID)));
             });
 
             Consumer<DiagramRefreshedEventPayload> updatedDiagramConsumer = payload -> Optional.of(payload)
@@ -356,7 +339,7 @@ private Optional<LibraryPackage> getISQAcousticsLibraryPackageElement(Resource r
                 .filter(Namespace.class::isInstance)
                 .map(Namespace.class::cast)
                 .flatMap(namespace -> namespace.getOwnedMembership().stream())
-                .map(Membership.class::cast)
+                .map(t -> t)
                 .flatMap(membership -> membership.getRelatedElement().stream())
                 .filter(LibraryPackage.class::isInstance)
                 .filter(element -> "ISQAcoustics".equals(element.getDeclaredName()))