1 /*
2  * FurnitureCatalog.java 7 avr. 2006
3  *
4  * Sweet Home 3D, Copyright (c) 2006 Emmanuel PUYBARET / eTeks <info@eteks.com>
5  *
6  * This program is free software; you can redistribute it and/or modify it under
7  * the terms of the GNU General Public License as published by the Free Software
8  * Foundation; either version 2 of the License, or (at your option) any later
9  * version.
10  *
11  * This program is distributed in the hope that it will be useful, but WITHOUT
12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
13  * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
14  * details.
15  *
16  * You should have received a copy of the GNU General Public License along with
17  * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
18  * Place, Suite 330, Boston, MA 02111-1307 USA
19  */
20 package com.eteks.sweethome3d.model;
21 
22 import java.util.ArrayList;
23 import java.util.Collections;
24 import java.util.List;
25 
26 /**
27  * Furniture catalog.
28  * @author Emmanuel Puybaret
29  */
30 public class FurnitureCatalog {
31   private List<FurnitureCategory>       categories = new ArrayList<FurnitureCategory>();
32   private final CollectionChangeSupport<CatalogPieceOfFurniture> furnitureChangeSupport =
33                              new CollectionChangeSupport<CatalogPieceOfFurniture>(this);
34 
35   /**
36    * Returns the categories list sorted by name.
37    * @return an unmodifiable list of categories.
38    */
getCategories()39   public List<FurnitureCategory> getCategories() {
40     return Collections.unmodifiableList(this.categories);
41   }
42 
43   /**
44    * Returns the count of categories in this catalog.
45    */
getCategoriesCount()46   public int getCategoriesCount() {
47     return this.categories.size();
48   }
49 
50   /**
51    * Returns the category at a given <code>index</code>.
52    */
getCategory(int index)53   public FurnitureCategory getCategory(int index) {
54     return this.categories.get(index);
55   }
56 
57   /**
58    * Adds the furniture <code>listener</code> in parameter to this catalog.
59    */
addFurnitureListener(CollectionListener<CatalogPieceOfFurniture> listener)60   public void addFurnitureListener(CollectionListener<CatalogPieceOfFurniture> listener) {
61     this.furnitureChangeSupport.addCollectionListener(listener);
62   }
63 
64   /**
65    * Removes the furniture <code>listener</code> in parameter from this catalog.
66    */
removeFurnitureListener(CollectionListener<CatalogPieceOfFurniture> listener)67   public void removeFurnitureListener(CollectionListener<CatalogPieceOfFurniture> listener) {
68     this.furnitureChangeSupport.removeCollectionListener(listener);
69   }
70 
71   /**
72    * Adds <code>piece</code> of a given <code>category</code> to this catalog.
73    * Once the <code>piece</code> is added, furniture listeners added to this catalog will receive a
74    * {@link CollectionListener#collectionChanged(CollectionEvent) collectionChanged}
75    * notification.
76    * @param category the category of the piece.
77    * @param piece    a piece of furniture.
78    */
add(FurnitureCategory category, CatalogPieceOfFurniture piece)79   public void add(FurnitureCategory category, CatalogPieceOfFurniture piece) {
80     int index = Collections.binarySearch(this.categories, category);
81     // If category doesn't exist yet, add it to categories
82     if (index < 0) {
83       category = new FurnitureCategory(category.getName());
84       this.categories.add(-index - 1, category);
85     } else {
86       category = this.categories.get(index);
87     }
88     // Add current piece of furniture to category list
89     category.add(piece);
90 
91     this.furnitureChangeSupport.fireCollectionChanged(piece,
92         category.getIndexOfPieceOfFurniture(piece), CollectionEvent.Type.ADD);
93   }
94 
95   /**
96    * Deletes the <code>piece</code> from this catalog.
97    * If then piece category is empty, it will be removed from the categories of this catalog.
98    * Once the <code>piece</code> is deleted, furniture listeners added to this catalog will receive a
99    * {@link CollectionListener#collectionChanged(CollectionEvent) collectionChanged}
100    * notification.
101    * @param piece a piece of furniture in that category.
102    */
delete(CatalogPieceOfFurniture piece)103   public void delete(CatalogPieceOfFurniture piece) {
104     FurnitureCategory category = piece.getCategory();
105     // Remove piece from its category
106     if (category != null) {
107       int pieceIndex = category.getIndexOfPieceOfFurniture(piece);
108       if (pieceIndex >= 0) {
109         category.delete(piece);
110 
111         if (category.getFurnitureCount() == 0) {
112           //  Make a copy of the list to avoid conflicts in the list returned by getCategories
113           this.categories = new ArrayList<FurnitureCategory>(this.categories);
114           this.categories.remove(category);
115         }
116 
117         this.furnitureChangeSupport.fireCollectionChanged(piece, pieceIndex, CollectionEvent.Type.DELETE);
118         return;
119       }
120     }
121 
122     throw new IllegalArgumentException("catalog doesn't contain piece " + piece.getName());
123   }
124 }
125