-/*******************************************************************************\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.g2d.diagram.participant;\r
-\r
-import java.util.Map;\r
-\r
-import org.simantics.g2d.diagram.IDiagram;\r
-import org.simantics.g2d.diagram.IDiagram.CompositionListener;\r
-import org.simantics.g2d.diagram.handler.CanvasListener;\r
-import org.simantics.g2d.element.IElement;\r
-import org.simantics.utils.datastructures.hints.HintContext;\r
-import org.simantics.utils.datastructures.hints.IHintContext;\r
-import org.simantics.utils.datastructures.hints.IHintContext.Key;\r
-\r
-/**\r
- * DiagramParticipant sends events to CanvasMonitors (=diagram handler)\r
- * \r
- * DiagramParticipant must be added to canvas context before diagram is set.\r
- * \r
- * @author Toni Kalajainen\r
- */\r
-public class DiagramParticipant extends AbstractDiagramParticipant {\r
-\r
- IHintContext ctx = new HintContext();\r
-\r
- /**\r
- * Diagram composition listener\r
- */\r
- CompositionListener listener = new CompositionListener() {\r
- @Override\r
- public void onElementAdded(IDiagram d, IElement e) {\r
-\r
- }\r
- @Override\r
- public void onElementRemoved(IDiagram d, IElement e) {\r
- // TODO Remove element variables... somehow efficiently\r
- }\r
- };\r
-\r
- @Override\r
- protected void onDiagramSet(IDiagram newDiagram, IDiagram oldDiagram) {\r
- if (clazz==null) return;\r
- for (CanvasListener cm : clazz.getItemsByClass(CanvasListener.class))\r
- cm.onAddedToCanvas(newDiagram, getContext());\r
-\r
- if (newDiagram==null)\r
- for (Key key : ctx.getHints().keySet())\r
- ctx.removeHint(key);\r
-\r
- if (oldDiagram!=null) oldDiagram.removeCompositionListener(listener);\r
- if (newDiagram!=null) newDiagram.addCompositionListener(listener);\r
- }\r
-\r
- public void setElementHint(IElement e, Key key, Object value)\r
- {\r
- Key elementCtxKey = new ElementCtxKey(e);\r
- IHintContext elementCtx = ctx.getHint(elementCtxKey);\r
- if (elementCtx==null) {\r
- elementCtx = new HintContext();\r
- ctx.setHint(elementCtxKey, elementCtx);\r
- }\r
- elementCtx.setHint(key, value);\r
- }\r
-\r
- public <E> E getElementHint(IElement e, Key key)\r
- {\r
- Key elementCtxKey = new ElementCtxKey(e);\r
- IHintContext elementCtx = ctx.getHint(elementCtxKey);\r
- if (elementCtx==null) return null;\r
- return elementCtx.getHint(key);\r
- }\r
-\r
- public Map<Key, Object> getElementHints(IElement e)\r
- {\r
- Key elementCtxKey = new ElementCtxKey(e);\r
- IHintContext elementCtx = ctx.getHint(elementCtxKey);\r
- if (elementCtx==null) return null;\r
- return elementCtx.getHints();\r
- }\r
-\r
- public <E> E removeElementHint(IElement e, Key key)\r
- {\r
- Key elementCtxKey = new ElementCtxKey(e);\r
- IHintContext elementCtx = ctx.getHint(elementCtxKey);\r
- if (elementCtx==null) return null;\r
- return elementCtx.removeHint(key);\r
- }\r
-\r
- public void setDiagramHint(IDiagram d, Key key, Object value)\r
- {\r
- ctx.setHint(key, value);\r
- }\r
-\r
- public <E> E removeDiagramHint(IDiagram d, Key key)\r
- {\r
- return ctx.removeHint(key);\r
- }\r
-\r
- @SuppressWarnings("unused")\r
- private class DiagramKey extends Key {\r
- public final IDiagram d;\r
- private final int hash;\r
- public final Key key;\r
-\r
- public DiagramKey(IDiagram d, Key key)\r
- {\r
- super();\r
- assert(key!=null);\r
- this.key = key;\r
- this.d = d;\r
- this.hash = key.hashCode() ^ d.hashCode();\r
- }\r
- @Override\r
- public int hashCode() {\r
- return hash;\r
- }\r
- @Override\r
- public boolean equals(Object obj) {\r
- if (!(obj instanceof DiagramKey)) return false;\r
- DiagramKey other = (DiagramKey) obj;\r
- if (other.key.equals(key)) return false;\r
- if (other.d != d) return false;\r
- return true;\r
- }\r
- @Override\r
- public boolean isValueAccepted(Object value) {\r
- return key.isValueAccepted(value);\r
- }\r
-\r
- }\r
-\r
- private class ElementKey extends Key {\r
- public final IElement e;\r
- private final int hash;\r
- public final Key key;\r
-\r
- public ElementKey(IElement e, Key key)\r
- {\r
- super();\r
- assert(key!=null);\r
- this.key = key;\r
- this.e = e;\r
- this.hash = key.hashCode() ^ e.hashCode();\r
- }\r
- @Override\r
- public int hashCode() {\r
- return hash;\r
- }\r
- @Override\r
- public boolean equals(Object obj) {\r
- if (!(obj instanceof ElementKey)) return false;\r
- ElementKey other = (ElementKey) obj;\r
- if (other.e != e) return false;\r
- if (!other.key.equals(key)) return false;\r
- return true;\r
- }\r
- @Override\r
- public boolean isValueAccepted(Object value) {\r
- return key.isValueAccepted(value);\r
- }\r
- }\r
-\r
- private class ElementCtxKey extends Key {\r
- public final IElement e;\r
-\r
- public ElementCtxKey(IElement e)\r
- {\r
- super();\r
- this.e = e;\r
- }\r
- @Override\r
- public int hashCode() {\r
- return e.hashCode();\r
- }\r
- @Override\r
- public boolean equals(Object obj) {\r
- if (!(obj instanceof ElementCtxKey)) return false;\r
- ElementCtxKey other = (ElementCtxKey) obj;\r
- return other.e == e;\r
- }\r
- @Override\r
- public boolean isValueAccepted(Object value) {\r
- return value instanceof IHintContext;\r
- }\r
- }\r
-\r
-\r
-}\r
+/*******************************************************************************
+ * 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.util.Map;
+
+import org.simantics.g2d.diagram.IDiagram;
+import org.simantics.g2d.diagram.IDiagram.CompositionListener;
+import org.simantics.g2d.diagram.handler.CanvasListener;
+import org.simantics.g2d.element.IElement;
+import org.simantics.utils.datastructures.hints.HintContext;
+import org.simantics.utils.datastructures.hints.IHintContext;
+import org.simantics.utils.datastructures.hints.IHintContext.Key;
+
+/**
+ * DiagramParticipant sends events to CanvasMonitors (=diagram handler)
+ *
+ * DiagramParticipant must be added to canvas context before diagram is set.
+ *
+ * @author Toni Kalajainen
+ */
+public class DiagramParticipant extends AbstractDiagramParticipant {
+
+ IHintContext ctx = new HintContext();
+
+ /**
+ * Diagram composition listener
+ */
+ CompositionListener listener = new CompositionListener() {
+ @Override
+ public void onElementAdded(IDiagram d, IElement e) {
+
+ }
+ @Override
+ public void onElementRemoved(IDiagram d, IElement e) {
+ // TODO Remove element variables... somehow efficiently
+ }
+ };
+
+ @Override
+ protected void onDiagramSet(IDiagram newDiagram, IDiagram oldDiagram) {
+ if (clazz==null) return;
+ for (CanvasListener cm : clazz.getItemsByClass(CanvasListener.class))
+ cm.onAddedToCanvas(newDiagram, getContext());
+
+ if (newDiagram==null)
+ for (Key key : ctx.getHints().keySet())
+ ctx.removeHint(key);
+
+ if (oldDiagram!=null) oldDiagram.removeCompositionListener(listener);
+ if (newDiagram!=null) newDiagram.addCompositionListener(listener);
+ }
+
+ public void setElementHint(IElement e, Key key, Object value)
+ {
+ Key elementCtxKey = new ElementCtxKey(e);
+ IHintContext elementCtx = ctx.getHint(elementCtxKey);
+ if (elementCtx==null) {
+ elementCtx = new HintContext();
+ ctx.setHint(elementCtxKey, elementCtx);
+ }
+ elementCtx.setHint(key, value);
+ }
+
+ public <E> E getElementHint(IElement e, Key key)
+ {
+ Key elementCtxKey = new ElementCtxKey(e);
+ IHintContext elementCtx = ctx.getHint(elementCtxKey);
+ if (elementCtx==null) return null;
+ return elementCtx.getHint(key);
+ }
+
+ public Map<Key, Object> getElementHints(IElement e)
+ {
+ Key elementCtxKey = new ElementCtxKey(e);
+ IHintContext elementCtx = ctx.getHint(elementCtxKey);
+ if (elementCtx==null) return null;
+ return elementCtx.getHints();
+ }
+
+ public <E> E removeElementHint(IElement e, Key key)
+ {
+ Key elementCtxKey = new ElementCtxKey(e);
+ IHintContext elementCtx = ctx.getHint(elementCtxKey);
+ if (elementCtx==null) return null;
+ return elementCtx.removeHint(key);
+ }
+
+ public void setDiagramHint(IDiagram d, Key key, Object value)
+ {
+ ctx.setHint(key, value);
+ }
+
+ public <E> E removeDiagramHint(IDiagram d, Key key)
+ {
+ return ctx.removeHint(key);
+ }
+
+ @SuppressWarnings("unused")
+ private class DiagramKey extends Key {
+ public final IDiagram d;
+ private final int hash;
+ public final Key key;
+
+ public DiagramKey(IDiagram d, Key key)
+ {
+ super();
+ assert(key!=null);
+ this.key = key;
+ this.d = d;
+ this.hash = key.hashCode() ^ d.hashCode();
+ }
+ @Override
+ public int hashCode() {
+ return hash;
+ }
+ @Override
+ public boolean equals(Object obj) {
+ if (!(obj instanceof DiagramKey)) return false;
+ DiagramKey other = (DiagramKey) obj;
+ if (other.key.equals(key)) return false;
+ if (other.d != d) return false;
+ return true;
+ }
+ @Override
+ public boolean isValueAccepted(Object value) {
+ return key.isValueAccepted(value);
+ }
+
+ }
+
+ private class ElementKey extends Key {
+ public final IElement e;
+ private final int hash;
+ public final Key key;
+
+ public ElementKey(IElement e, Key key)
+ {
+ super();
+ assert(key!=null);
+ this.key = key;
+ this.e = e;
+ this.hash = key.hashCode() ^ e.hashCode();
+ }
+ @Override
+ public int hashCode() {
+ return hash;
+ }
+ @Override
+ public boolean equals(Object obj) {
+ if (!(obj instanceof ElementKey)) return false;
+ ElementKey other = (ElementKey) obj;
+ if (other.e != e) return false;
+ if (!other.key.equals(key)) return false;
+ return true;
+ }
+ @Override
+ public boolean isValueAccepted(Object value) {
+ return key.isValueAccepted(value);
+ }
+ }
+
+ private class ElementCtxKey extends Key {
+ public final IElement e;
+
+ public ElementCtxKey(IElement e)
+ {
+ super();
+ this.e = e;
+ }
+ @Override
+ public int hashCode() {
+ return e.hashCode();
+ }
+ @Override
+ public boolean equals(Object obj) {
+ if (!(obj instanceof ElementCtxKey)) return false;
+ ElementCtxKey other = (ElementCtxKey) obj;
+ return other.e == e;
+ }
+ @Override
+ public boolean isValueAccepted(Object value) {
+ return value instanceof IHintContext;
+ }
+ }
+
+
+}
Code Review / simantics / platform.git / blobdiff