1 package org.simantics.g3d.scenegraph.base;
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3 import java.util.ArrayList;
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4 import java.util.Collection;
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5 import java.util.List;
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7 import org.simantics.utils.datastructures.MapList;
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9 public abstract class ParentNode<T extends INode> extends Node {
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11 private MapList<String, T> children = new MapList<String, T>();
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13 public synchronized void addNode(String relName, T child) {
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14 if (child.getParent() != null)
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15 child.getParent().removeNode(child.getParentRel(), child);
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17 child.setParent(this, relName);
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18 children.add(relName, (T) child);
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21 fireNodeAdded(child, relName);
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25 * Removes child node and it's hierarchy.
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30 @SuppressWarnings("unchecked")
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31 public synchronized final boolean removeNode(String relName, INode child) {
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32 if (children.remove(relName, (T) child)) {
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33 fireNodeRemoved(child, relName);
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35 child.setParent(null, null);
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42 * Removes child node. The child nodes hierarchy is left intact.
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47 @SuppressWarnings("unchecked")
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48 public synchronized final boolean deattachNode(String relName, INode child) {
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49 if (children.remove(relName, (T) child)) {
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50 fireNodeRemoved(child, relName);
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51 child.setParent(null, null);
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57 public synchronized final boolean removeNodes(String relName) {
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58 List<T> nodes = children.getValues(relName);
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59 for (T child : nodes) {
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60 if (children.remove(relName, (T) child)) {
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61 fireNodeRemoved(child, relName);
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63 child.setParent(null, null);
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67 return nodes.size() > 0;
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70 public synchronized final void removeNodes() {
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71 synchronized (children) {
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72 boolean changed = false;
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73 for (String key : children.getKeys()) {
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74 for (T child : children.getValues(key)) {
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75 if (child != null) {
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77 if (child instanceof ParentNode<?>) {
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78 ((ParentNode<?>) child).removeNodes();
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81 child.setParent(null, null);
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82 // if (propertyChangeListener != null) {
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83 // propertyChangeListener.propertyChange(new
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84 // PropertyChangeEvent(this,
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85 // "children["+child.getId()+"]", child.getClass(),
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86 // NULL)); // "children" is a special field name
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97 public synchronized List<T> getNodes(String rel) {
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98 return children.getValues(rel);
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101 public synchronized List<T> getNodes() {
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102 List<T> result = new ArrayList<T>();
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103 for (String s : children.getKeys())
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104 result.addAll(children.getValues(s));
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108 protected void childrenChanged() {
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113 public void remove() {
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114 synchronized (children) {
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115 List<T> toRemove = new ArrayList<T>();
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117 for (String key : children.getKeys()) {
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119 for (T child : children.getValues(key)) {
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120 if (child != null) {
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121 toRemove.add(child);
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126 for (T n : toRemove) {
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131 if (toRemove.size() > 0)
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141 protected void fireNodeAdded(INode node, String rel) {
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142 for (NodeListener listener : listeners) {
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143 listener.nodeAdded(this, node, rel);
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147 protected void fireNodeRemoved(INode node, String rel) {
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148 for (NodeListener listener : listeners) {
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149 listener.nodeRemoved(this, node, rel);
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