--- /dev/null
+/*******************************************************************************\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.scenegraph;
+
+import java.beans.PropertyChangeListener;\r
+\r
+import org.simantics.scenegraph.utils.NodeUtil;\r
+\r
+/**
+ * @author J-P
+ */
+public abstract class Node implements INode {
+\r
+ private static final long serialVersionUID = -5540999051056414851L;\r
+\r
+ public transient static long IDCOUNTER = 1;\r
+
+ protected transient ParentNode<?> parent = null;\r
+ protected transient Location location = Location.LOCAL;\r
+\r
+ // This is for internal server communications. Do not touch.
+ // Support for only one listener should be enough, thus we don't need PropertyChangeSupport\r
+ protected transient PropertyChangeListener propertyChangeListener = null;
+
+ protected Long id = IDCOUNTER++;\r
+\r
+ /**\r
+ * @see org.simantics.scenegraph.INode#getId()\r
+ */\r
+ public Long getId() {
+ return id;
+ }
+
+ /**\r
+ * @see org.simantics.scenegraph.INode#getParent()\r
+ */\r
+ public ParentNode<?> getParent() {
+ return parent;
+ }
+
+ /**\r
+ * @see org.simantics.scenegraph.INode#setParent(org.simantics.scenegraph.ParentNode)\r
+ */\r
+ public void setParent(ParentNode<?> parent) {
+ this.parent = parent;
+ }
+
+ /**\r
+ * The default implementation of {@link #getRootNode()} always asks for the\r
+ * root node from the parent. Scene graph leaf nodes are never considered to\r
+ * be real scene graph root nodes, although they are can be thought of as\r
+ * such when they are not attached to any scene graph. This implementation\r
+ * prevents the need to have a separate rootNodeCache field in all nodes.\r
+ * \r
+ * @see org.simantics.scenegraph.INode#getRootNode()\r
+ */\r
+ public ParentNode<?> getRootNode() {\r
+ return parent != null ? parent.getRootNode() : null;\r
+ }\r
+\r
+ public void remove() {
+ if (parent != null) {\r
+ parent.asyncRemoveNode(this);
+ }
+ }
+
+ /**\r
+ * @see org.simantics.scenegraph.INode#init()\r
+ */\r
+ public void init() {
+ }\r
+ \r
+ public void attach() {\r
+ }\r
+
+
+ /**\r
+ * @see org.simantics.scenegraph.INode#cleanup()\r
+ */\r
+ public void cleanup() {
+ retractMapping();\r
+ }\r
+\r
+ /**\r
+ * @see org.simantics.scenegraph.INode#delete()\r
+ */\r
+ public void delete() {\r
+ // 1. Remove this node from parent\r
+ parent.asyncRemoveNode(this);\r
+ }\r
+\r
+ /**\r
+ * Remove any ID<->Node mapping this node might have in the scene graph's\r
+ * {@link LookupService}.\r
+ */\r
+ protected void retractMapping() {\r
+ NodeUtil.tryUnmap(this);\r
+ }\r
+\r
+ public <TC> TC appendParent(String id, Class<TC> nc) {\r
+ assert(parent != null);\r
+\r
+ // 0. Find identifier from parent\r
+ String identifier = null;\r
+ for(String s : parent.children.keySet()) { // FIXME: should not be this complicated\r
+ if(parent.children.get(s) == this) { // Find this from parent child list\r
+ identifier = s;\r
+ break;\r
+ }\r
+ }\r
+ if (identifier == null)\r
+ identifier = "" + this.id;\r
+\r
+ // 1. Remove this node from original parent\r
+ parent.unlinkChild(this);\r
+\r
+ // 2. Add new node under parent\r
+ TC instance = parent.addNode(id, nc);\r
+\r
+ // 3. Add this node under new parent\r
+ ((ParentNode<?>)instance).appendChild(identifier, this);\r
+\r
+ return instance;\r
+ }\r
+
+ @Override
+ public String toString() {
+ return getSimpleClassName() + " (" + id + ")";
+ }
+
+ public String getSimpleClassName() {
+ return getSimpleClassName(getClass());
+ }
+
+ public static String getSimpleClassName(Class<?> clazz) {
+ String name = clazz.getSimpleName();
+ int pos = name.indexOf("$$");
+ if (pos >= 0)
+ name = name.substring(0, pos);
+ return name;
+ }\r
+\r
+ /**\r
+ * Associates this node with the specified ID in the {@link ILookupService}\r
+ * that must be offered by the scene graph root node. After this\r
+ * association, one can use {@link NodeUtil#lookup(INode, String)} to lookup\r
+ * this node from the scene graph by its ID.\r
+ * \r
+ * @param id\r
+ * @throws UnsupportedOperationException if no ILookupService is available\r
+ * for this node\r
+ */\r
+ @ClientSide\r
+ public void setLookupId(String id) {\r
+ NodeUtil.getLookupService(this).map(id, this);\r
+ }\r
+\r
+ /**\r
+ * A shorthand utility for {@link NodeUtil#lookup(INode, String, Class)}.\r
+ * \r
+ * @param id\r
+ * @param clazz\r
+ * @return\r
+ */\r
+ protected <T extends INode> T lookupNode(String id, Class<T> clazz) {\r
+ return NodeUtil.lookup(this, id, clazz);\r
+ }\r
+\r
+ /**\r
+ * A shorthand utility for {@link NodeUtil#lookupId(INode)}).\r
+ * \r
+ * @param node\r
+ * @return\r
+ */\r
+ protected String lookupId(INode node) {\r
+ return NodeUtil.lookupId(node);\r
+ }\r
+\r
+}
Code Review / simantics / platform.git / blobdiff