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CDClassNodeDescriptionProvider.java
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CDClassNodeDescriptionProvider.java
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/*******************************************************************************
* Copyright (c) 2023 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.sirius.web.sample.papaya.view.classdiagram;
import java.util.Objects;
import org.eclipse.sirius.components.view.builder.IViewDiagramElementFinder;
import org.eclipse.sirius.components.view.builder.generated.DiagramBuilders;
import org.eclipse.sirius.components.view.builder.generated.ViewBuilders;
import org.eclipse.sirius.components.view.builder.providers.IColorProvider;
import org.eclipse.sirius.components.view.builder.providers.INodeDescriptionProvider;
import org.eclipse.sirius.components.view.diagram.DiagramDescription;
import org.eclipse.sirius.components.view.diagram.DiagramFactory;
import org.eclipse.sirius.components.view.diagram.EdgeTool;
import org.eclipse.sirius.components.view.diagram.NodeDescription;
import org.eclipse.sirius.components.view.diagram.NodePalette;
import org.eclipse.sirius.components.view.diagram.SynchronizationPolicy;
import org.eclipse.sirius.web.sample.papaya.view.PapayaToolsFactory;
import org.eclipse.sirius.web.sample.papaya.view.PapayaViewBuilder;
/**
* Used to create the class node description.
*
* @author sbegaudeau
*/
public class CDClassNodeDescriptionProvider implements INodeDescriptionProvider {
public static final String NAME = "CD Node Class";
private final IColorProvider colorProvider;
private final ViewBuilders viewBuilderHelper = new ViewBuilders();
private final DiagramBuilders diagramBuilderHelper = new DiagramBuilders();
public CDClassNodeDescriptionProvider(IColorProvider colorProvider) {
this.colorProvider = Objects.requireNonNull(colorProvider);
}
@Override
public NodeDescription create() {
var builder = new PapayaViewBuilder();
var domainType = builder.domainType(builder.entity("Class"));
var nodeDescription = this.diagramBuilderHelper.newNodeDescription()
.name(NAME)
.domainType(domainType)
.semanticCandidatesExpression("aql:self.types")
.childrenLayoutStrategy(DiagramFactory.eINSTANCE.createListLayoutStrategyDescription())
.labelExpression("aql:self.name")
.style(this.diagramBuilderHelper.newRectangularNodeStyleDescription()
.color(this.colorProvider.getColor("color_blue"))
.borderColor(this.colorProvider.getColor("border_blue"))
.labelColor(this.colorProvider.getColor("label_white"))
.withHeader(false)
.displayHeaderSeparator(false)
.build())
.synchronizationPolicy(SynchronizationPolicy.UNSYNCHRONIZED)
.conditionalStyles(this.diagramBuilderHelper.newConditionalNodeStyle()
.condition("aql:self.abstract")
.style(this.diagramBuilderHelper.newRectangularNodeStyleDescription()
.color(this.colorProvider.getColor("color_green"))
.borderColor(this.colorProvider.getColor("border_green"))
.labelColor(this.colorProvider.getColor("label_white"))
.withHeader(false)
.displayHeaderSeparator(false)
.build())
.build())
.build();
return nodeDescription;
}
@Override
public void link(DiagramDescription diagramDescription, IViewDiagramElementFinder cache) {
var classNodeDescription = cache.getNodeDescription(NAME);
var packageNodeDescription = cache.getNodeDescription(CDPackageNodeDescriptionProvider.NAME);
if (classNodeDescription.isPresent() && packageNodeDescription.isPresent()) {
packageNodeDescription.get().getChildrenDescriptions().add(classNodeDescription.get());
classNodeDescription.get().setPalette(this.palette(cache));
}
}
private NodePalette palette(IViewDiagramElementFinder cache) {
var optionalClassNodeDescription = cache.getNodeDescription(NAME);
var optionalInterfaceNodeDescription = cache.getNodeDescription(CDInterfaceNodeDescriptionProvider.NAME);
var nodePaletteBuilder = this.diagramBuilderHelper.newNodePalette();
if (optionalClassNodeDescription.isPresent() && optionalInterfaceNodeDescription.isPresent()) {
var nodePalette = nodePaletteBuilder.edgeTools(this.createExtendsClassEdgeTool(optionalClassNodeDescription.get()),
this.createImplementsInterfaceEdgeTool(optionalInterfaceNodeDescription.get()))
.labelEditTool(new PapayaToolsFactory().editName())
.deleteTool(new PapayaToolsFactory().deleteTool())
.build();
optionalClassNodeDescription.get().setPalette(nodePalette);
return nodePalette;
}
return nodePaletteBuilder.build();
}
private EdgeTool createExtendsClassEdgeTool(NodeDescription classNodeDescription) {
return this.diagramBuilderHelper.newEdgeTool()
.name("Extends Class")
.targetElementDescriptions(classNodeDescription)
.body(this.viewBuilderHelper.newChangeContext()
.expression("aql:semanticEdgeSource")
.children(this.viewBuilderHelper.newSetValue()
.featureName("extends")
.valueExpression("aql:semanticEdgeTarget")
.build())
.build())
.build();
}
private EdgeTool createImplementsInterfaceEdgeTool(NodeDescription interfaceNodeDescription) {
return this.diagramBuilderHelper.newEdgeTool()
.name("Implements")
.targetElementDescriptions(interfaceNodeDescription)
.body(this.viewBuilderHelper.newChangeContext()
.expression("aql:semanticEdgeSource")
.children(this.viewBuilderHelper.newSetValue()
.featureName("implements")
.valueExpression("aql:semanticEdgeTarget")
.build())
.build())
.build();
}
}