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 8f223a62285bbf6892240019deea73d6ed68a31b..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;
@@ -98,6 +99,7 @@ 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;
 
 
@@ -290,6 +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);
         }
@@ -298,7 +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());
     }