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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:06:44 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:06:44 +0000
commited5640d8b587fbcfed7dd7967f3de04b37a76f26 (patch)
tree7a5f7c6c9d02226d7471cb3cc8fbbf631b415303 /odk/examples/java/Inspector/HideableTreeModel.java
parentInitial commit. (diff)
downloadlibreoffice-ed5640d8b587fbcfed7dd7967f3de04b37a76f26.tar.xz
libreoffice-ed5640d8b587fbcfed7dd7967f3de04b37a76f26.zip
Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'odk/examples/java/Inspector/HideableTreeModel.java')
-rw-r--r--odk/examples/java/Inspector/HideableTreeModel.java258
1 files changed, 258 insertions, 0 deletions
diff --git a/odk/examples/java/Inspector/HideableTreeModel.java b/odk/examples/java/Inspector/HideableTreeModel.java
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+++ b/odk/examples/java/Inspector/HideableTreeModel.java
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+/* -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed
+ * with this work for additional information regarding copyright
+ * ownership. The ASF licenses this file to you under the Apache
+ * License, Version 2.0 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+import java.util.ArrayList;
+import javax.swing.event.TreeModelEvent;
+import javax.swing.event.TreeModelListener;
+import javax.swing.tree.TreeModel;
+import javax.swing.tree.TreeNode;
+import javax.swing.tree.TreePath;
+
+
+public class HideableTreeModel implements TreeModel {
+
+ private ArrayList<TreeModelListener> modelListeners = new ArrayList<TreeModelListener>();
+ private Object root = null;
+
+
+ public HideableTreeModel(TreeNode _root) {
+ super();
+ setRoot(_root);
+ }
+
+
+ public Object getRoot() {
+ return this.root;
+ }
+
+
+ private void setRoot(Object r) {
+ this.root = r;
+ }
+
+
+ private Object[] getPathToRoot(Object node) {
+ return getPathToRoot(node, 0);
+ }
+
+
+ private Object[] getPathToRoot(Object node, int i) {
+ Object anode[];
+ if(node == null) {
+ if(i == 0) {
+ return null;
+ }
+ anode = new Object[i];
+ } else {
+ i++;
+ if(node == getRoot()) {
+ anode = new Object[i];
+ } else {
+ anode = getPathToRoot(getParent(node), i);
+ }
+ anode[anode.length - i] = node;
+ }
+ return anode;
+ }
+
+
+ public void addTreeModelListener(TreeModelListener l) {
+ modelListeners.add(l);
+ }
+
+
+ public void removeTreeModelListener(TreeModelListener l) {
+ modelListeners.remove(l);
+ }
+
+
+
+
+
+ public void valueForPathChanged(TreePath path, Object newValue) {
+ nodeChanged(path.getLastPathComponent());
+ }
+
+
+
+
+ public void nodeInserted(Object node, Object child, int index) {
+ if(index < 0) {
+ index = getIndexOfChild(node, child);
+ }
+ if(node != null && child != null && index >= 0) {
+ TreePath tp = new TreePath(getPathToRoot(node));
+ int[] ai = { index };
+ Object[] ac = { child };
+ fireTreeNodesInserted(new TreeModelEvent(this, tp, ai, ac));
+ }
+ }
+
+
+ private void nodeRemoved(Object node, Object child, int index) {
+ if(node != null && child != null && index >= 0) {
+ TreePath tp = new TreePath(getPathToRoot(node));
+ int[] ai = { index };
+ Object[] ac = { child };
+ fireTreeNodesRemoved(new TreeModelEvent(this, tp, ai, ac));
+ }
+ }
+
+
+ public void nodeChanged(Object node) {
+ if(node != null) {
+ TreePath tp = new TreePath(getPathToRoot(node));
+ fireTreeNodesChanged(new TreeModelEvent(this, tp, null, null));
+ }
+ }
+
+
+ private void fireTreeNodesChanged(TreeModelEvent event) {
+ for(TreeModelListener l : modelListeners) {
+ l.treeNodesChanged(event);
+ }
+ }
+
+
+ private void fireTreeNodesInserted(TreeModelEvent event) {
+ for(TreeModelListener l : modelListeners) {
+ l.treeNodesInserted(event);
+ }
+ }
+
+
+ private void fireTreeNodesRemoved(TreeModelEvent event) {
+ for(TreeModelListener l : modelListeners) {
+ l.treeNodesRemoved(event);
+ }
+ }
+
+ public boolean isLeaf(Object _oNode) {
+ if(_oNode instanceof TreeNode) {
+ return ((TreeNode) _oNode).isLeaf();
+ }
+ return true;
+ }
+
+
+
+ private Object getParent(Object node) {
+ if(node != getRoot() && (node instanceof TreeNode)) {
+ return ((TreeNode)node).getParent();
+ }
+ return null;
+ }
+
+
+ private boolean isNodeVisible(Object node) {
+ if(node != getRoot()) {
+ if(node instanceof HideableMutableTreeNode) {
+ return ((HideableMutableTreeNode)node).isVisible();
+ }
+ }
+ return true;
+ }
+
+
+ public boolean setNodeVisible(Object node, boolean v) {
+ // can't hide root
+ if(node != getRoot()) {
+ if(node instanceof HideableMutableTreeNode) {
+ HideableMutableTreeNode n = (HideableMutableTreeNode)node;
+ if(v != n.isVisible()) {
+ TreeNode parent = n.getParent();
+ if(v) {
+ // need to get index after showing...
+ n.setVisible(v);
+ int index = getIndexOfChild(parent, n);
+ nodeInserted(parent, n, index);
+ } else {
+ // need to get index before hiding...
+ int index = getIndexOfChild(parent, n);
+ n.setVisible(v);
+ nodeRemoved(parent, n, index);
+ }
+ }
+ return true;
+ }
+ }
+ return false;
+ }
+
+
+
+
+
+
+
+
+ public Object getChild(Object parent, int index) {
+ if(parent instanceof TreeNode) {
+ TreeNode p = (TreeNode) parent;
+ for(int i = 0, j = -1; i < p.getChildCount(); i++) {
+ TreeNode pc = p.getChildAt(i);
+ if(isNodeVisible(pc)) {
+ j++;
+ }
+ if(j == index) {
+ return pc;
+ }
+ }
+ }
+ return null;
+ }
+
+
+ public int getChildCount(Object parent) {
+ int count = 0;
+ if(parent instanceof TreeNode) {
+ TreeNode p = (TreeNode) parent;
+ for(int i = 0; i < p.getChildCount(); i++) {
+ TreeNode pc = p.getChildAt(i);
+ if(isNodeVisible(pc)) {
+ count++;
+ }
+ }
+ }
+ return count;
+ }
+
+
+ public int getIndexOfChild(Object parent, Object child) {
+ int index = -1;
+ if(parent instanceof TreeNode && child instanceof TreeNode) {
+ TreeNode p = (TreeNode)parent;
+ TreeNode c = (TreeNode)child;
+ if(isNodeVisible(c)) {
+ index = 0;
+ for(int i = 0; i < p.getChildCount(); i++) {
+ TreeNode pc = p.getChildAt(i);
+ if(pc.equals(c)) {
+ return index;
+ }
+ if(isNodeVisible(pc)) {
+ index++;
+ }
+ }
+ }
+ }
+ return index;
+ }
+}
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */