From 1a435d31f6b629ab33bfb94046d594cca831a329 Mon Sep 17 00:00:00 2001
From: Tuukka Lehtonen <tuukka.lehtonen@semantum.fi>
Date: Thu, 5 Mar 2020 23:32:32 +0200
Subject: [PATCH] Close Plant3DEditor automatically when its input disappears
 from DB

gitlab #102

Change-Id: Ifeaf13c1c9f8e000dbcd7a5ef4e6351ae1cff1a2
---
 .../plant3d/editor/Plant3DEditor.java         | 67 +++++++++++--------
 1 file changed, 38 insertions(+), 29 deletions(-)

diff --git a/org.simantics.plant3d/src/org/simantics/plant3d/editor/Plant3DEditor.java b/org.simantics.plant3d/src/org/simantics/plant3d/editor/Plant3DEditor.java
index 96789ff1..72f2c206 100644
--- a/org.simantics.plant3d/src/org/simantics/plant3d/editor/Plant3DEditor.java
+++ b/org.simantics.plant3d/src/org/simantics/plant3d/editor/Plant3DEditor.java
@@ -26,8 +26,10 @@ import org.simantics.Simantics;
 import org.simantics.db.ReadGraph;
 import org.simantics.db.Resource;
 import org.simantics.db.Session;
+import org.simantics.db.common.request.ParametrizedRead;
 import org.simantics.db.common.request.ReadRequest;
 import org.simantics.db.exception.DatabaseException;
+import org.simantics.db.layer0.request.combinations.Combinators;
 import org.simantics.g3d.scenegraph.NodeMap;
 import org.simantics.g3d.scenegraph.RenderListener;
 import org.simantics.g3d.scenegraph.base.INode;
@@ -78,6 +80,7 @@ import org.simantics.selectionview.StandardPropertyPage;
 import org.simantics.ui.workbench.IPropertyPage;
 import org.simantics.ui.workbench.IResourceEditorInput;
 import org.simantics.ui.workbench.ResourceEditorPart;
+import org.simantics.ui.workbench.editor.input.InputValidationCombinators;
 import org.simantics.utils.threads.ThreadUtils;
 import org.simantics.utils.ui.ExceptionUtils;
 
@@ -128,25 +131,23 @@ public class Plant3DEditor extends ResourceEditorPart {
 	public static final int X = 0, Y = 1, Z = 2;
 	
 	protected int upDirection = 1;
-	
+
+	ParametrizedRead<IResourceEditorInput, Boolean> INPUT_VALIDATOR =
+			Combinators.compose(
+					InputValidationCombinators.hasURI(),
+					InputValidationCombinators.extractInputResource()
+					);
+
+	@Override
+	protected ParametrizedRead<IResourceEditorInput, Boolean> getInputValidator() {
+		return INPUT_VALIDATOR;
+	}
+
 	@Override
 	public void createPartControl(Composite parent) {
 		this.parent = parent;
-		//parent.setLayout (new FillLayout ());
-		
-        
-//		component = new SWTAWTComponent(parent,SWT.NONE) {
-//			
-//			@Override
-//			protected Component createSwingComponent() {
-//				if (panel == null) {
-//					panel = new InteractiveVtkPanel();
-//					vtkPanelUtil.registerPanel(panel);
-//					createScene();
-//				}
-//				return panel;
-//			}
-//		};
+
+		activateValidation();
 
 		IResourceEditorInput rei = (IResourceEditorInput)getEditorInput();
 		input = rei.getResource();
@@ -322,7 +323,7 @@ public class Plant3DEditor extends ResourceEditorPart {
                             ExceptionUtils.logAndShowError("Failed to load model correctly", e);
                         }
         				
-        				List<vtkProp3D> props = new ArrayList<vtkProp3D>();
+        				List<vtkProp3D> props = new ArrayList<>();
         				collectProps(rootNode, props);
         				fitToWindow(props);
                     }
@@ -515,19 +516,27 @@ public class Plant3DEditor extends ResourceEditorPart {
 		}
 	}
 
+	private class FitToWindow extends Action {
+		private List<INode> selected;
+		public FitToWindow(List<INode> selected) {
+			super("Fit to Window");
+			this.selected = selected;
+			//setAccelerator('1');
+		}
+		@Override
+		public void run() {
+			List<vtkProp3D> props = new ArrayList<>();
+			final Collection<INode> collection = !selected.isEmpty() ? selected : getRootNode().getChild();
+			for (INode n : collection)
+				collectProps(n, props);
+
+			fitToWindow(props);
+			getPanel().refresh();
+		}
+	}
+
 	protected void createFocusMenu(IMenuManager m, List<INode> selected) {
-		m.add(new Action("Fit to Window") {
-			@Override
-			public void run() {
-				List<vtkProp3D> props = new ArrayList<>();
-				final Collection<INode> collection = !selected.isEmpty() ? selected : getRootNode().getChild();
-				for (INode n : collection)
-					collectProps(n, props);
-				
-				fitToWindow(props);
-				getPanel().refresh();
-			}
-		});
+		m.add(new FitToWindow(selected));
 
 		if (!selected.isEmpty()) {
 			List<vtkProp3D> actors = new ArrayList<>();
-- 
2.47.1