| 1 | /** |
| 2 | * Copyright 2005-2011 Steve McDuff d-duff@users.sourceforge.net |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | package org.deduced.viewer.web.shared; |
| 17 | |
| 18 | /** |
| 19 | * Ordered Tree Item Model is used by ordered tree item lists to store the |
| 20 | * ordering information and a link to the tree item itself. |
| 21 | * |
| 22 | * @author Steve McDuff |
| 23 | * |
| 24 | */ |
| 25 | public class OrderedTreeItemModel extends OrderedModel implements |
| 26 | ModelContainer |
| 27 | { |
| 28 | |
| 29 | /** |
| 30 | * serialVersionUID |
| 31 | */ |
| 32 | private static final long serialVersionUID = -8918806048071335745L; |
| 33 | |
| 34 | /** |
| 35 | * the ordered tree item model |
| 36 | */ |
| 37 | private TreeItemModel treeItem; |
| 38 | |
| 39 | /** |
| 40 | * |
| 41 | * OrderedTreeItemModel constructor |
| 42 | */ |
| 43 | public OrderedTreeItemModel() |
| 44 | { |
| 45 | |
| 46 | } |
| 47 | |
| 48 | /** |
| 49 | * (non-JSDoc) |
| 50 | * |
| 51 | * @see org.deduced.viewer.web.shared.Model#registerChildModels() |
| 52 | */ |
| 53 | @Override |
| 54 | protected void registerChildModels() |
| 55 | { |
| 56 | registerChildModel(getTreeItem(), this); |
| 57 | super.registerChildModels(); |
| 58 | } |
| 59 | |
| 60 | /** |
| 61 | * (non-JSDoc) |
| 62 | * |
| 63 | * @see org.deduced.viewer.web.shared.OrderedModel#propertyChanged(org.deduced.viewer.web.shared.ChangeEvent) |
| 64 | */ |
| 65 | @Override |
| 66 | public void propertyChanged( |
| 67 | ChangeEvent event) |
| 68 | { |
| 69 | if (Utilities.equals(event.getName(), "tree item")) |
| 70 | { |
| 71 | TreeItemModel newTreeItem = |
| 72 | (TreeItemModel) event.getSerializableValue(); |
| 73 | |
| 74 | updateTreeItem(newTreeItem); |
| 75 | } |
| 76 | else |
| 77 | { |
| 78 | super.propertyChanged(event); |
| 79 | } |
| 80 | } |
| 81 | |
| 82 | /** |
| 83 | * update Tree Item |
| 84 | * |
| 85 | * @param newTreeItem the new tree item |
| 86 | */ |
| 87 | public void updateTreeItem( |
| 88 | TreeItemModel newTreeItem) |
| 89 | { |
| 90 | setTreeItem(updateModel(newTreeItem, getTreeItem(), this)); |
| 91 | notifyParentThatModelChanged(); |
| 92 | } |
| 93 | |
| 94 | /** |
| 95 | * set the Tree Item |
| 96 | * |
| 97 | * @param newTreeItem the ordered tree item |
| 98 | */ |
| 99 | public void setTreeItem( |
| 100 | TreeItemModel newTreeItem) |
| 101 | { |
| 102 | treeItem = newTreeItem; |
| 103 | } |
| 104 | |
| 105 | /** |
| 106 | * delete the Tree Item |
| 107 | */ |
| 108 | private void deleteTreeItem() |
| 109 | { |
| 110 | if (getTreeItem() != null) |
| 111 | { |
| 112 | getTreeItem().delete(); |
| 113 | setTreeItem(null); |
| 114 | } |
| 115 | } |
| 116 | |
| 117 | /** |
| 118 | * (non-JSDoc) |
| 119 | * |
| 120 | * @see org.deduced.viewer.web.shared.Model#deleteChildModels() |
| 121 | */ |
| 122 | @Override |
| 123 | protected void deleteChildModels() |
| 124 | { |
| 125 | deleteTreeItem(); |
| 126 | super.deleteChildModels(); |
| 127 | } |
| 128 | |
| 129 | /** |
| 130 | * @return the treeItem |
| 131 | */ |
| 132 | public TreeItemModel getTreeItem() |
| 133 | { |
| 134 | return treeItem; |
| 135 | } |
| 136 | |
| 137 | /** |
| 138 | * (non-JSDoc) |
| 139 | * |
| 140 | * @see org.deduced.viewer.web.shared.OrderedModel#getOrderedValue() |
| 141 | */ |
| 142 | @Override |
| 143 | public Object getOrderedValue() |
| 144 | { |
| 145 | return treeItem; |
| 146 | } |
| 147 | |
| 148 | /** |
| 149 | * (non-JSDoc) |
| 150 | * |
| 151 | * @see org.deduced.viewer.web.shared.ModelContainer#modelChanged(org.deduced.viewer.web.shared.Model) |
| 152 | */ |
| 153 | @Override |
| 154 | public void modelChanged( |
| 155 | Model model) |
| 156 | { |
| 157 | notifyParentThatModelChanged(); |
| 158 | } |
| 159 | |
| 160 | } |