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/*
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Version: MPL 1.1/GPL 2.0/LGPL 2.1
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The contents of this file are subject to the Mozilla Public License Version
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1.1 (the "License"); you may not use this file except in compliance with
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the License. You may obtain a copy of the License at
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http://www.mozilla.org/MPL/
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Software distributed under the License is distributed on an "AS IS" basis,
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WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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for the specific language governing rights and limitations under the License.
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The Original Code is the Open Hardware Monitor code.
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The Initial Developer of the Original Code is
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Michael Möller <m.moeller@gmx.ch>.
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Portions created by the Initial Developer are Copyright (C) 2009-2010
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the Initial Developer. All Rights Reserved.
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Contributor(s):
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Alternatively, the contents of this file may be used under the terms of
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either the GNU General Public License Version 2 or later (the "GPL"), or
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the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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in which case the provisions of the GPL or the LGPL are applicable instead
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of those above. If you wish to allow use of your version of this file only
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under the terms of either the GPL or the LGPL, and not to allow others to
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use your version of this file under the terms of the MPL, indicate your
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decision by deleting the provisions above and replace them with the notice
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and other provisions required by the GPL or the LGPL. If you do not delete
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the provisions above, a recipient may use your version of this file under
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the terms of any one of the MPL, the GPL or the LGPL.
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*/
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using System;
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using System.Collections;
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using System.Collections.Generic;
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using System.Collections.ObjectModel;
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using Aga.Controls.Tree;
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namespace OpenHardwareMonitor.GUI {
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public class TreeModel : ITreeModel {
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private Node root;
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private bool forceVisible = false;
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public TreeModel() {
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root = new Node();
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root.Model = this;
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}
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public TreePath GetPath(Node node) {
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if (node == root)
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return TreePath.Empty;
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else {
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Stack<object> stack = new Stack<object>();
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while (node != root) {
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stack.Push(node);
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node = node.Parent;
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}
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return new TreePath(stack.ToArray());
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}
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}
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public Collection<Node> Nodes {
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get { return root.Nodes; }
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}
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private Node GetNode(TreePath treePath) {
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Node parent = root;
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foreach (object obj in treePath.FullPath) {
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Node node = obj as Node;
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if (node == null || node.Parent != parent)
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return null;
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parent = node;
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}
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return parent;
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}
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public IEnumerable GetChildren(TreePath treePath) {
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Node node = GetNode(treePath);
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if (node != null) {
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foreach (Node n in node.Nodes)
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if (forceVisible || n.IsVisible)
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yield return n;
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} else {
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yield break;
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}
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}
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public bool IsLeaf(TreePath treePath) {
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return false;
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}
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public bool ForceVisible {
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get {
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return forceVisible;
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}
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set {
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if (value != forceVisible) {
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forceVisible = value;
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OnStructureChanged(root);
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}
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}
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}
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#pragma warning disable 67
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public event EventHandler<TreeModelEventArgs> NodesChanged;
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public event EventHandler<TreePathEventArgs> StructureChanged;
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public event EventHandler<TreeModelEventArgs> NodesInserted;
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public event EventHandler<TreeModelEventArgs> NodesRemoved;
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#pragma warning restore 67
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public void OnNodeChanged(Node parent, int index, Node node) {
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if (NodesChanged != null && parent != null) {
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TreePath path = GetPath(parent);
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if (path != null)
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NodesChanged(this, new TreeModelEventArgs(
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path, new int[] { index }, new object[] { node }));
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}
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}
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public void OnStructureChanged(Node node) {
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if (StructureChanged != null)
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StructureChanged(this,
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new TreeModelEventArgs(GetPath(node), new object[0]));
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}
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public void OnNodeInserted(Node parent, int index, Node node) {
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if (NodesInserted != null) {
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TreeModelEventArgs args = new TreeModelEventArgs(GetPath(parent),
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new int[] { index }, new object[] { node });
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NodesInserted(this, args);
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}
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}
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public void OnNodeRemoved(Node parent, int index, Node node) {
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if (NodesRemoved != null) {
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TreeModelEventArgs args = new TreeModelEventArgs(GetPath(parent),
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new int[] { index }, new object[] { node });
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NodesRemoved(this, args);
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}
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}
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}
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}
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