X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=bundles%2Forg.simantics.g2d%2Fsrc%2Forg%2Fsimantics%2Fg2d%2Fdiagram%2Fparticipant%2FAbstractDiagramParticipant.java;h=27554e0c6674c5df22a2d0dddecbaf0fa703d747;hb=HEAD;hp=6d4f732848c32fd083a4298151dc65aacf308547;hpb=969bd23cab98a79ca9101af33334000879fb60c5;p=simantics%2Fplatform.git

diff --git a/bundles/org.simantics.g2d/src/org/simantics/g2d/diagram/participant/AbstractDiagramParticipant.java b/bundles/org.simantics.g2d/src/org/simantics/g2d/diagram/participant/AbstractDiagramParticipant.java
index 6d4f73284..27554e0c6 100644
--- a/bundles/org.simantics.g2d/src/org/simantics/g2d/diagram/participant/AbstractDiagramParticipant.java
+++ b/bundles/org.simantics.g2d/src/org/simantics/g2d/diagram/participant/AbstractDiagramParticipant.java
@@ -1,151 +1,151 @@
-/*******************************************************************************
- * Copyright (c) 2007, 2010 Association for Decentralized Information Management
- * in Industry THTH ry.
- * All rights reserved. This program and the accompanying materials
- * are made available under the terms of the Eclipse Public License v1.0
- * which accompanies this distribution, and is available at
- * http://www.eclipse.org/legal/epl-v10.html
- *
- * Contributors:
- *     VTT Technical Research Centre of Finland - initial API and implementation
- *******************************************************************************/
-package org.simantics.g2d.diagram.participant;
-
-import java.lang.reflect.Field;
-
-import org.simantics.g2d.canvas.ICanvasContext;
-import org.simantics.g2d.canvas.impl.AbstractCanvasParticipant;
-import org.simantics.g2d.canvas.impl.DependencyReflection;
-import org.simantics.g2d.canvas.impl.DependencyReflection.ReferenceDefinition;
-import org.simantics.g2d.canvas.impl.DependencyReflection.ReferenceType;
-import org.simantics.g2d.canvas.impl.HintReflection.HintListener;
-import org.simantics.g2d.diagram.DiagramClass;
-import org.simantics.g2d.diagram.DiagramHints;
-import org.simantics.g2d.diagram.IDiagram;
-import org.simantics.g2d.diagram.handler.DiagramHandler;
-import org.simantics.utils.datastructures.hints.IHintObservable;
-import org.simantics.utils.datastructures.hints.IHintContext.Key;
-
-/**
- * This is a base implementation for all participants that handle
- * diagram.  
- * 
- * Features:
- *  - Overrideable onDiagramSet() method
- *  - diagram -field points to current diagram
- *  - DiagramHandlers accessible with @Dependency and @Reference annotations
- * 
- * TODO add Diagram class handler annotations
- * @author Toni Kalajainen
- */
-public class AbstractDiagramParticipant extends AbstractCanvasParticipant {
-	
-	public IDiagram diagram;
-	public DiagramClass clazz;
-	protected ReferenceDefinition[] handlerDefs;
-	boolean handlerDepsSatisfied = true; 
-		
-	public AbstractDiagramParticipant() {
-		super();
-		
-		handlerDefs = DependencyReflection.getDependencies(this, ReferenceType.DiagramHandler);		
-	}
-	
-	@HintListener(Class=DiagramHints.class, Field="KEY_DIAGRAM")
-	public void hintChanged(IHintObservable sender, Key key, Object oldValue, Object newValue) {
-		if (oldValue==newValue) return;
-		_setDiagram( (IDiagram) newValue );		
-	}
-	@HintListener(Class=DiagramHints.class, Field="KEY_DIAGRAM")
-	public void hintRemoved(IHintObservable sender, Key key, Object oldValue) {
-		_setDiagram(null);		
-	}
-
-	@Override
-	public void addedToContext(ICanvasContext ctx) {
-		super.addedToContext(ctx);
-		_setDiagram( (IDiagram) ctx.getHintStack().getHint(DiagramHints.KEY_DIAGRAM) );
-	}
-	
-	@Override
-	public void removedFromContext(ICanvasContext ctx) {
-		_setDiagram(null);
-		super.removedFromContext(ctx);
-	}
-	
-	@Override
-	public void assertDependencies() {
-		super.assertDependencies();
-		assert(diagram!=null);
-	}
-
-	private void _setDiagram(IDiagram d)
-	{
-		IDiagram oldDiagram = this.diagram;
-		this.diagram = d;
-		if (d!=null) clazz = d.getDiagramClass();
-		else clazz=null;
-		
-		if (clazz!=null) {
-
-			try {
-				for (DiagramHandler h : clazz.getAll()) {
-					Class<?> c = h.getClass();
-					for (ReferenceDefinition def : handlerDefs)
-					{
-						Class<?> 	defClass = def.requirement;
-						if (!defClass.isAssignableFrom(c)) continue;
-						Field 		f = def.field;
-						//Object		value = f.get(this);
-						//assert(value==null);
-						f.set(this, h);
-					}
-				}
-			} catch (Exception e) {
-				throw new RuntimeException(e);
-			}		
-			handlerDepsSatisfied = checkHandlerDependencies();			
-		} else {
-
-			try {
-				for (ReferenceDefinition def : handlerDefs)
-				{
-					Field 		f = def.field;
-					f.set(this, null);
-				}
-			} catch (Exception e) {
-				throw new RuntimeException(e);
-			}		
-			handlerDepsSatisfied = true;
-		}
-		onDiagramSet(this.diagram, oldDiagram);
-	}
-	
-	/**
-	 * OVERRIDE THIS to hook diagram modifications 
-	 * @param newDiagram new diagram or null
-	 * @param oldDiagram ..
-	 */
-	protected void onDiagramSet(IDiagram newDiagram, IDiagram oldDiagram)
-	{
-	}
-	
-	private boolean checkHandlerDependencies() {
-		try {
-			for (ReferenceDefinition rd : handlerDefs) {
-				if (!rd.dependency)
-					continue;
-				Field f = rd.field;
-				Object o = f.get(this);
-				if (o == null)
-					return false;
-			}
-		} catch (Exception e) {
-			throw new RuntimeException(e);
-		}
-		return true;
-	}	
-
-	
-	
-}
+/*******************************************************************************
+ * Copyright (c) 2007, 2010 Association for Decentralized Information Management
+ * in Industry THTH ry.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     VTT Technical Research Centre of Finland - initial API and implementation
+ *******************************************************************************/
+package org.simantics.g2d.diagram.participant;
+
+import java.lang.reflect.Field;
+
+import org.simantics.g2d.canvas.ICanvasContext;
+import org.simantics.g2d.canvas.impl.AbstractCanvasParticipant;
+import org.simantics.g2d.canvas.impl.DependencyReflection;
+import org.simantics.g2d.canvas.impl.DependencyReflection.ReferenceDefinition;
+import org.simantics.g2d.canvas.impl.DependencyReflection.ReferenceType;
+import org.simantics.g2d.canvas.impl.HintReflection.HintListener;
+import org.simantics.g2d.diagram.DiagramClass;
+import org.simantics.g2d.diagram.DiagramHints;
+import org.simantics.g2d.diagram.IDiagram;
+import org.simantics.g2d.diagram.handler.DiagramHandler;
+import org.simantics.utils.datastructures.hints.IHintObservable;
+import org.simantics.utils.datastructures.hints.IHintContext.Key;
+
+/**
+ * This is a base implementation for all participants that handle
+ * diagram.  
+ * 
+ * Features:
+ *  - Overrideable onDiagramSet() method
+ *  - diagram -field points to current diagram
+ *  - DiagramHandlers accessible with @Dependency and @Reference annotations
+ * 
+ * TODO add Diagram class handler annotations
+ * @author Toni Kalajainen
+ */
+public class AbstractDiagramParticipant extends AbstractCanvasParticipant {
+	
+	public IDiagram diagram;
+	public DiagramClass clazz;
+	protected ReferenceDefinition[] handlerDefs;
+	boolean handlerDepsSatisfied = true; 
+		
+	public AbstractDiagramParticipant() {
+		super();
+		
+		handlerDefs = DependencyReflection.getDependencies(this, ReferenceType.DiagramHandler);		
+	}
+	
+	@HintListener(Class=DiagramHints.class, Field="KEY_DIAGRAM")
+	public void hintChanged(IHintObservable sender, Key key, Object oldValue, Object newValue) {
+		if (oldValue==newValue) return;
+		_setDiagram( (IDiagram) newValue );		
+	}
+	@HintListener(Class=DiagramHints.class, Field="KEY_DIAGRAM")
+	public void hintRemoved(IHintObservable sender, Key key, Object oldValue) {
+		_setDiagram(null);		
+	}
+
+	@Override
+	public void addedToContext(ICanvasContext ctx) {
+		super.addedToContext(ctx);
+		_setDiagram( (IDiagram) ctx.getHintStack().getHint(DiagramHints.KEY_DIAGRAM) );
+	}
+	
+	@Override
+	public void removedFromContext(ICanvasContext ctx) {
+		_setDiagram(null);
+		super.removedFromContext(ctx);
+	}
+	
+	@Override
+	public void assertDependencies() {
+		super.assertDependencies();
+		assert(diagram!=null);
+	}
+
+	private void _setDiagram(IDiagram d)
+	{
+		IDiagram oldDiagram = this.diagram;
+		this.diagram = d;
+		if (d!=null) clazz = d.getDiagramClass();
+		else clazz=null;
+		
+		if (clazz!=null) {
+
+			try {
+				for (DiagramHandler h : clazz.getAll()) {
+					Class<?> c = h.getClass();
+					for (ReferenceDefinition def : handlerDefs)
+					{
+						Class<?> 	defClass = def.requirement;
+						if (!defClass.isAssignableFrom(c)) continue;
+						Field 		f = def.field;
+						//Object		value = f.get(this);
+						//assert(value==null);
+						f.set(this, h);
+					}
+				}
+			} catch (Exception e) {
+				throw new RuntimeException(e);
+			}		
+			handlerDepsSatisfied = checkHandlerDependencies();			
+		} else {
+
+			try {
+				for (ReferenceDefinition def : handlerDefs)
+				{
+					Field 		f = def.field;
+					f.set(this, null);
+				}
+			} catch (Exception e) {
+				throw new RuntimeException(e);
+			}		
+			handlerDepsSatisfied = true;
+		}
+		onDiagramSet(this.diagram, oldDiagram);
+	}
+	
+	/**
+	 * OVERRIDE THIS to hook diagram modifications 
+	 * @param newDiagram new diagram or null
+	 * @param oldDiagram ..
+	 */
+	protected void onDiagramSet(IDiagram newDiagram, IDiagram oldDiagram)
+	{
+	}
+	
+	private boolean checkHandlerDependencies() {
+		try {
+			for (ReferenceDefinition rd : handlerDefs) {
+				if (!rd.dependency)
+					continue;
+				Field f = rd.field;
+				Object o = f.get(this);
+				if (o == null)
+					return false;
+			}
+		} catch (Exception e) {
+			throw new RuntimeException(e);
+		}
+		return true;
+	}	
+
+	
+	
+}