/*
* FurnitureCatalog.java 7 avr. 2006
*
* Sweet Home 3D, Copyright (c) 2006 Emmanuel PUYBARET / eTeks <info@eteks.com>
*
* This program is free software; you can redistribute it and/or modify it under
* the terms of the GNU General Public License as published by the Free Software
* Foundation; either version 2 of the License, or (at your option) any later
* version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc., 59 Temple
* Place, Suite 330, Boston, MA 02111-1307 USA
*/
package com.eteks.sweethome3d.model;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
/**
* Furniture catalog.
* @author Emmanuel Puybaret
*/
public class FurnitureCatalog {
private List<FurnitureCategory> categories = new ArrayList<FurnitureCategory>();
private boolean sorted;
private final CollectionChangeSupport<CatalogPieceOfFurniture> furnitureChangeSupport =
new CollectionChangeSupport<CatalogPieceOfFurniture>(this);
/**
* Returns the categories list sorted by name.
* @return an unmodifiable list of categories.
*/
public List<FurnitureCategory> getCategories() {
checkCategoriesSorted();
return Collections.unmodifiableList(this.categories);
}
/**
* Checks categories are sorted.
*/
private void checkCategoriesSorted() {
if (!this.sorted) {
Collections.sort(this.categories);
this.sorted = true;
}
}
/**
* Returns the count of categories in this catalog.
*/
public int getCategoriesCount() {
return this.categories.size();
}
/**
* Returns the category at a given <code>index</code>.
*/
public FurnitureCategory getCategory(int index) {
checkCategoriesSorted();
return this.categories.get(index);
}
/**
* Adds the furniture <code>listener</code> in parameter to this catalog.
*/
public void addFurnitureListener(CollectionListener<CatalogPieceOfFurniture> listener) {
this.furnitureChangeSupport.addCollectionListener(listener);
}
/**
* Removes the furniture <code>listener</code> in parameter from this catalog.
*/
public void removeFurnitureListener(CollectionListener<CatalogPieceOfFurniture> listener) {
this.furnitureChangeSupport.removeCollectionListener(listener);
}
/**
* Adds a category.
* @param category the category to add.
* @throws IllegalHomonymException if a category with same name as the one in
* parameter already exists in this catalog.
*/
private void add(FurnitureCategory category) {
if (this.categories.contains(category)) {
throw new IllegalHomonymException(
category.getName() + " already exists in catalog");
}
this.categories.add(category);
this.sorted = false;
}
/**
* Adds <code>piece</code> of a given <code>category</code> to this catalog.
* Once the <code>piece</code> is added, furniture listeners added to this catalog will receive a
* {@link CollectionListener#collectionChanged(CollectionEvent) collectionChanged}
* notification.
* @param category the category of the piece.
* @param piece a piece of furniture.
*/
public void add(FurnitureCategory category, CatalogPieceOfFurniture piece) {
int index = this.categories.indexOf(category);
// If category doesn't exist yet, add it to categories
if (index == -1) {
category = new FurnitureCategory(category.getName());
add(category);
} else {
category = this.categories.get(index);
}
// Add current piece of furniture to category list
category.add(piece);
this.furnitureChangeSupport.fireCollectionChanged(piece,
category.getIndexOfPieceOfFurniture(piece), CollectionEvent.Type.ADD);
}
/**
* Deletes the <code>piece</code> from this catalog.
* If then piece category is empty, it will be removed from the categories of this catalog.
* Once the <code>piece</code> is deleted, furniture listeners added to this catalog will receive a
* {@link CollectionListener#collectionChanged(CollectionEvent) collectionChanged}
* notification.
* @param piece a piece of furniture in that category.
*/
public void delete(CatalogPieceOfFurniture piece) {
FurnitureCategory category = piece.getCategory();
// Remove piece from its category
if (category != null) {
int pieceIndex = category.getIndexOfPieceOfFurniture(piece);
if (pieceIndex >= 0) {
category.delete(piece);
if (category.getFurnitureCount() == 0) {
// Make a copy of the list to avoid conflicts in the list returned by getCategories
this.categories = new ArrayList<FurnitureCategory>(this.categories);
this.categories.remove(category);
}
this.furnitureChangeSupport.fireCollectionChanged(piece, pieceIndex, CollectionEvent.Type.DELETE);
return;
}
}
throw new IllegalArgumentException("catalog doesn't contain piece " + piece.getName());
}
}