Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.diagram / src / org / simantics / diagram / adapter / BranchPointClassFactory.java

diff --git a/bundles/org.simantics.diagram/src/org/simantics/diagram/adapter/BranchPointClassFactory.java b/bundles/org.simantics.diagram/src/org/simantics/diagram/adapter/BranchPointClassFactory.java
new file mode 100644 (file)
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+++ b/bundles/org.simantics.diagram/src/org/simantics/diagram/adapter/BranchPointClassFactory.java
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+/*******************************************************************************\r
+ * Copyright (c) 2007, 2010 Association for Decentralized Information Management\r
+ * in Industry THTH ry.\r
+ * All rights reserved. This program and the accompanying materials\r
+ * are made available under the terms of the Eclipse Public License v1.0\r
+ * which accompanies this distribution, and is available at\r
+ * http://www.eclipse.org/legal/epl-v10.html\r
+ *\r
+ * Contributors:\r
+ *     VTT Technical Research Centre of Finland - initial API and implementation\r
+ *******************************************************************************/\r
+package org.simantics.diagram.adapter;\r
+\r
+\r
+import org.simantics.db.AsyncReadGraph;\r
+import org.simantics.db.Resource;\r
+import org.simantics.db.common.procedure.adapter.AsyncProcedureAdapter;\r
+import org.simantics.db.common.procedure.guarded.GuardedAsyncProcedureWrapper;\r
+import org.simantics.db.procedure.AsyncProcedure;\r
+import org.simantics.diagram.stubs.DiagramResource;\r
+import org.simantics.diagram.synchronization.SynchronizationHints;\r
+import org.simantics.diagram.synchronization.graph.TransformSynchronizer;\r
+import org.simantics.g2d.canvas.ICanvasContext;\r
+import org.simantics.g2d.diagram.IDiagram;\r
+import org.simantics.g2d.element.ElementClass;\r
+import org.simantics.g2d.element.IElement;\r
+import org.simantics.g2d.element.handler.impl.StaticObjectAdapter;\r
+import org.simantics.g2d.elementclass.BranchPoint;\r
+import org.simantics.g2d.elementclass.BranchPoint.Direction;\r
+import org.simantics.g2d.elementclass.BranchPointClass;\r
+\r
+/**\r
+ * @author Tuukka Lehtonen\r
+ */\r
+public class BranchPointClassFactory extends ElementFactoryAdapter {\r
+\r
+    public static ElementClass create(Resource elementClass) {\r
+        return BranchPointClass.CLASS.newClassWith(false, new StaticObjectAdapter(elementClass));\r
+    }\r
+\r
+    @Override\r
+    public void create(AsyncReadGraph graph, ICanvasContext canvas, IDiagram diagram, Resource elementType, AsyncProcedure<ElementClass> procedure) {\r
+        procedure.execute(graph, BranchPointClass.CLASS.newClassWith(false, new StaticObjectAdapter(elementType)));\r
+    }\r
+\r
+    @Override\r
+    public void load(AsyncReadGraph graph, ICanvasContext canvas, IDiagram diagram, final Resource element, final IElement e, final AsyncProcedure<IElement> procedure) {\r
+        e.setHint(SynchronizationHints.HINT_SYNCHRONIZER, TransformSynchronizer.INSTANCE);\r
+\r
+        final AsyncProcedure<IElement> guard = new GuardedAsyncProcedureWrapper<IElement>(procedure, 2);\r
+\r
+        final BranchPoint bp = e.getElementClass().getAtMostOneItemOfClass(BranchPoint.class);\r
+        if (bp != null) {\r
+            final DiagramResource dr = graph.getService(DiagramResource.class);\r
+            graph.forHasStatement(element, dr.Horizontal, element, new AsyncProcedureAdapter<Boolean>() {\r
+                @Override\r
+                public void exception(AsyncReadGraph graph, Throwable throwable) {\r
+                    guard.exception(graph, throwable);\r
+                }\r
+                @Override\r
+                public void execute(AsyncReadGraph graph, final Boolean horizontal) {\r
+                    graph.forHasStatement(element, dr.Vertical, element, new AsyncProcedure<Boolean>() {\r
+                        @Override\r
+                        public void exception(AsyncReadGraph graph, Throwable throwable) {\r
+                            guard.exception(graph, throwable);\r
+                        }\r
+                        @Override\r
+                        public void execute(AsyncReadGraph graph, Boolean vertical) {\r
+                            Direction direction = Direction.Any;\r
+                            if (horizontal ^ vertical)\r
+                                direction = horizontal ? Direction.Horizontal : Direction.Vertical;\r
+                            bp.setDirectionPreference(e, direction);\r
+\r
+                            guard.execute(graph, e);\r
+                        }\r
+                    });\r
+                }\r
+            });\r
+        }\r
+\r
+        ElementFactoryUtil.readTransform(graph, element, e, guard);\r
+    }\r
+\r
+}
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