Listen to changes in page settings in DiagramSceneGraphProvider

[simantics/platform.git] / bundles / org.simantics.modeling.ui / src / org / simantics / modeling / ui / sg / DiagramSceneGraphProvider.java

diff --git a/bundles/org.simantics.modeling.ui/src/org/simantics/modeling/ui/sg/DiagramSceneGraphProvider.java b/bundles/org.simantics.modeling.ui/src/org/simantics/modeling/ui/sg/DiagramSceneGraphProvider.java
index 3d800d1f1f43d56ff82c929f9e0fcc4aa12ea6fb..302e074fce35fe9a202c743119e15afd397eb23f 100644 (file)
--- a/bundles/org.simantics.modeling.ui/src/org/simantics/modeling/ui/sg/DiagramSceneGraphProvider.java
+++ b/bundles/org.simantics.modeling.ui/src/org/simantics/modeling/ui/sg/DiagramSceneGraphProvider.java
@@ -26,6 +26,7 @@ import org.simantics.db.exception.ManyObjectsForFunctionalRelationException;
 import org.simantics.db.exception.NoSingleResultException;
 import org.simantics.db.exception.ServiceException;
 import org.simantics.db.management.ISessionContext;
+import org.simantics.db.procedure.Listener;
 import org.simantics.db.request.Read;
 import org.simantics.diagram.adapter.DefaultConnectionClassFactory;
 import org.simantics.diagram.adapter.FlagClassFactory;
@@ -35,6 +36,7 @@ import org.simantics.diagram.handler.CopyPasteStrategy;
 import org.simantics.diagram.handler.DefaultCopyPasteStrategy;
 import org.simantics.diagram.handler.DeleteHandler;
 import org.simantics.diagram.handler.SimpleElementTransformHandler;
+import org.simantics.diagram.participant.ConnectionCrossingsParticipant;
 import org.simantics.diagram.query.DiagramRequests;
 import org.simantics.diagram.runtime.RuntimeDiagramManager;
 import org.simantics.diagram.stubs.DiagramResource;
@@ -54,6 +56,7 @@ import org.simantics.g2d.diagram.participant.ZOrderHandler;
 import org.simantics.g2d.diagram.participant.pointertool.PointerInteractor;
 import org.simantics.g2d.element.ElementClassProviders;
 import org.simantics.g2d.element.ElementClasses;
+import org.simantics.g2d.element.IElementClassProvider;
 import org.simantics.g2d.element.handler.impl.StaticObjectAdapter;
 import org.simantics.g2d.multileveldiagram.TransitionFunction;
 import org.simantics.g2d.multileveldiagram.ZoomTransitionParticipant;
@@ -90,13 +93,13 @@ import org.simantics.scenegraph.g2d.events.adapter.AWTRemoteEventAdapter;
 import org.simantics.scenegraph.g2d.events.command.CommandKeyBinding;
 import org.simantics.structural.stubs.StructuralResource2;
 import org.simantics.structural2.modelingRules.IModelingRules;
-import org.simantics.ui.SimanticsUI;
 import org.simantics.utils.datastructures.hints.HintContext;
 import org.simantics.utils.datastructures.hints.IHintContext;
 import org.simantics.utils.page.PageDesc;
 import org.simantics.utils.page.PageOrientation;
 import org.simantics.utils.threads.AWTThread;
 import org.simantics.utils.threads.IThreadWorkQueue;
+import org.simantics.utils.threads.ThreadUtils;
 import org.simantics.utils.ui.ErrorLogger;
 
 
@@ -171,6 +174,10 @@ public class DiagramSceneGraphProvider implements ICanvasSceneGraphProvider, IDi
         }
     }
 
+    public GraphToDiagramSynchronizer getGraphToDiagramSynchronizer() {
+        return synchronizer;
+    }
+
     protected CopyPasteStrategy getCopyPasteStrategy() {
                try {
                        CopyPasteStrategy cpStrategy = Simantics.getSession().syncRequest(new PossibleAdapter<CopyPasteStrategy>(resource, CopyPasteStrategy.class));
@@ -189,7 +196,7 @@ public class DiagramSceneGraphProvider implements ICanvasSceneGraphProvider, IDi
                return new MappedElementCopyAdvisor(new ElementCopyAdvisor(), new ComponentCopyAdvisor());
     }
     
-    private void initContext(CanvasContext ctx) {
+    protected void initContext(CanvasContext ctx) {
         boolean unlock = false;
         if (!ctx.isLocked()) {
             ctx.setLocked(true);
@@ -244,7 +251,8 @@ public class DiagramSceneGraphProvider implements ICanvasSceneGraphProvider, IDi
         ctx.add( new ElementInteractor() );
         ctx.add( new Selection() );
         ctx.add( new DiagramParticipant() );
-        ctx.add( new ElementPainter(false) );
+        ctx.add( new ElementPainter(true) );
+        ctx.add( new ConnectionCrossingsParticipant(resource));
 
         //ctx.add( new ElementHeartbeater() );
         ctx.add( new ZOrderHandler() );
@@ -284,6 +292,30 @@ public class DiagramSceneGraphProvider implements ICanvasSceneGraphProvider, IDi
             DiagramDesc diagramDesc = Simantics.getSession().syncRequest(DiagramRequests.getDiagramDesc(diagramResource));
             if (diagramDesc != null)
                 setDiagramDesc(ctx, diagramDesc);
+
+            // Create a listener to react to page setting changes.
+            Simantics.getSession().asyncRequest(DiagramRequests.getDiagramDesc(diagramResource), new Listener<DiagramDesc>() {
+                @Override
+                public void execute(DiagramDesc result) {
+                    if (result != null && ctx != null) {
+                        ThreadUtils.asyncExec(ctx.getThreadAccess(), () -> {
+                            if (ctx != null) {
+                                setDiagramDesc(ctx, result);
+                            }
+                        });
+                    }
+                }
+
+                @Override
+                public void exception(Throwable t) {
+                    ErrorLogger.defaultLogError(t);
+                }
+
+                @Override
+                public boolean isDisposed() {
+                    return DiagramSceneGraphProvider.this.ctx == null;
+                }
+            });
         } catch (DatabaseException e) {
             ErrorLogger.defaultLogError(e);
         }
@@ -292,7 +324,7 @@ public class DiagramSceneGraphProvider implements ICanvasSceneGraphProvider, IDi
     protected void setDiagramDesc(ICanvasContext ctx, DiagramDesc diagramDesc) {
         IHintContext hints = ctx.getDefaultHintContext();
         hints.setHint(Hints.KEY_PAGE_DESC, diagramDesc.getPageDesc());
-        //hints.setHint(Hints.KEY_DISPLAY_PAGE, diagramDesc.isPageBordersVisible());
+        hints.setHint(Hints.KEY_DISPLAY_PAGE, diagramDesc.isPageBordersVisible());
         hints.setHint(Hints.KEY_DISPLAY_MARGINS, diagramDesc.isMarginsVisible());
     }
 
@@ -344,13 +376,7 @@ public class DiagramSceneGraphProvider implements ICanvasSceneGraphProvider, IDi
         }
 
         try {
-
-            IModelingRules modelingRules = Simantics.getSession().syncRequest(DiagramRequests.getModelingRules(resource, null));
-            if (modelingRules != null) {
-                initialHints.setHint(DiagramModelHints.KEY_MODELING_RULES, modelingRules);
-            }
-            
-            initialHints.setHint(SynchronizationHints.COPY_ADVISOR, getCopyAdvisor());
+               fillInitialDiagramHints(initialHints);
             
             final RuntimeDiagramManager runtimeDiagramManager = RuntimeDiagramManager.create(Simantics.getSession(), resource, modelURI, RVI);
             
@@ -362,12 +388,8 @@ public class DiagramSceneGraphProvider implements ICanvasSceneGraphProvider, IDi
                     if(val != null && navigation == null) { // Set only if navigation has not been set manually
                         navigation = val;
                     }
-                    GraphToDiagramSynchronizer sync = new GraphToDiagramSynchronizer(graph, ctx,
-                            ElementClassProviders.mappedProvider(
-                                    ElementClasses.CONNECTION, DefaultConnectionClassFactory.CLASS.newClassWith(new StaticObjectAdapter(dr.Connection)),
-                                    ElementClasses.FLAG, FlagClassFactory.createFlagClass(dr.Flag, dr.Flag_Terminal)
-                            )
-                    );
+                    GraphToDiagramSynchronizer sync = new GraphToDiagramSynchronizer(graph, ctx,createElementClassProvider(graph));
+                    
                     sync.set(ModelingSynchronizationHints.MODELING_RESOURCE, ModelingResources.getInstance(graph));
                     diagram = sync.loadDiagram(new NullProgressMonitor(), graph, null, resource, runtimeDiagramManager.getRuntimeDiagram(), structuralPath, initialHints); // FIXME
                     return sync;
@@ -384,6 +406,24 @@ public class DiagramSceneGraphProvider implements ICanvasSceneGraphProvider, IDi
 
         return ctx.getSceneGraph();
     }
+    
+    protected void fillInitialDiagramHints(IHintContext initialHints) throws DatabaseException {
+         IModelingRules modelingRules = Simantics.getSession().syncRequest(DiagramRequests.getModelingRules(resource, null));
+          if (modelingRules != null) {
+              initialHints.setHint(DiagramModelHints.KEY_MODELING_RULES, modelingRules);
+          }
+          
+          initialHints.setHint(SynchronizationHints.COPY_ADVISOR, getCopyAdvisor());
+    }
+    
+    protected IElementClassProvider createElementClassProvider(ReadGraph graph) throws DatabaseException {
+        DiagramResource dr = DiagramResource.getInstance(graph);
+        return ElementClassProviders.mappedProvider(
+                  ElementClasses.CONNECTION, DefaultConnectionClassFactory.CLASS.newClassWith(new StaticObjectAdapter(dr.Connection)),
+                  ElementClasses.FLAG, FlagClassFactory.createFlagClass(dr.Flag, dr.Flag_Terminal)
+        );
+        
+    }
 
     @Override
     public void dispose() {
@@ -431,7 +471,7 @@ public class DiagramSceneGraphProvider implements ICanvasSceneGraphProvider, IDi
 
         try {
             // FIXME: I have no idea if this works or not..
-            diagram = SimanticsUI.getSession().syncRequest(new Read<IDiagram>() {
+            diagram = Simantics.getSession().syncRequest(new Read<IDiagram>() {
                 @Override
                 public IDiagram perform(ReadGraph graph) throws DatabaseException {
                     IDiagram d = synchronizer.loadDiagram(new NullProgressMonitor(), graph, null, structuralPath.resources[0], null, structuralPath.removeFromBeginning(0), hints);