| /******************************************************************************* |
| * Copyright (c) 2003, 2008 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - Initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.wst.server.ui.internal.audio; |
| |
| import java.util.*; |
| import org.eclipse.wst.server.ui.internal.viewers.BaseContentProvider; |
| /** |
| * Audio table content provider. |
| */ |
| class AudioTableContentProvider extends BaseContentProvider { |
| protected static final String MISC_CATEGORY = "miscCategory"; |
| |
| /** |
| * AudioTableContentProvider constructor comment. |
| */ |
| public AudioTableContentProvider() { |
| super(); |
| } |
| |
| /** |
| * Returns the elements to display in the viewer |
| * when its input is set to the given element. |
| * These elements can be presented as rows in a table, items in a list, etc. |
| * The result is not modified by the viewer. |
| * |
| * @param inputElement the input element |
| * @return the array of elements to display in the viewer |
| */ |
| public Object[] getElements(Object inputElement) { |
| AudioCore core = AudioCore.getInstance(); |
| |
| Map<String, String> categories = core.getCategories(); |
| Map<String, Sound> sounds = core.getSounds(); |
| |
| List<Object> list = new ArrayList<Object>(sounds.size()); |
| |
| // first, find all the categories and sort |
| List<String> cats = new ArrayList<String>(); |
| Iterator iterator = categories.keySet().iterator(); |
| while (iterator.hasNext()) |
| cats.add((String) iterator.next()); |
| sortCategories(cats); |
| |
| // list them, ignoring empty ones |
| iterator = categories.keySet().iterator(); |
| while (iterator.hasNext()) { |
| String id = (String) iterator.next(); |
| List<Sound> l = getSoundsByCategory(id); |
| if (!l.isEmpty()) { |
| list.add(id); |
| sortSounds(l); |
| |
| int size = l.size(); |
| for (int i = 0; i < size; i++) |
| list.add(l.get(i)); |
| } |
| } |
| |
| // finally, list the "misc" sounds |
| List<Sound> l = getSoundsByCategory(null); |
| if (!l.isEmpty()) { |
| list.add(MISC_CATEGORY); |
| sortSounds(l); |
| |
| int size = l.size(); |
| for (int i = 0; i < size; i++) |
| list.add(l.get(i)); |
| } |
| |
| return list.toArray(); |
| } |
| |
| /** |
| * Returns the sounds from the given category. Use null |
| * to return all miscelleneous sounds with no category or |
| * an invalid category. |
| * |
| * @return java.util.List |
| * @param category java.lang.String |
| */ |
| protected static List<Sound> getSoundsByCategory(String category) { |
| AudioCore core = AudioCore.getInstance(); |
| |
| Map<String, Sound> sounds = core.getSounds(); |
| Map<String, String> categories = core.getCategories(); |
| List<Sound> list = new ArrayList<Sound>(); |
| |
| Iterator iterator = sounds.keySet().iterator(); |
| while (iterator.hasNext()) { |
| String id = (String) iterator.next(); |
| Sound sound = sounds.get(id); |
| if (category != null && category.equals(sound.getCategory())) |
| list.add(sound); |
| else if (category == null && (sound.getCategory() == null || !categories.containsKey(sound.getCategory()))) |
| list.add(sound); |
| } |
| return list; |
| } |
| |
| /** |
| * Sorts a list of categories, in place. |
| * |
| * @param list java.util.List |
| */ |
| protected void sortCategories(List<String> list) { |
| int size = list.size(); |
| if (size < 2) |
| return; |
| |
| Map<String, String> categories = AudioCore.getInstance().getCategories(); |
| |
| for (int i = 0; i < size - 1; i++) { |
| for (int j = i+1; j < size; j++) { |
| String a = list.get(i); |
| String aa = categories.get(a); |
| String b = list.get(j); |
| String bb = categories.get(b); |
| if (aa.compareTo(bb) > 0) { |
| list.set(i, b); |
| list.set(j, a); |
| } |
| } |
| } |
| } |
| |
| /** |
| * Sorts a list of sounds, in place. |
| * |
| * @param sounds java.util.List |
| */ |
| protected void sortSounds(List<Sound> sounds) { |
| int size = sounds.size(); |
| if (size < 2) |
| return; |
| |
| for (int i = 0; i < size - 1; i++) { |
| for (int j = i+1; j < size; j++) { |
| Sound a = sounds.get(i); |
| Sound b = sounds.get(j); |
| if (a.getName().compareTo(b.getName()) > 0) { |
| sounds.set(i, b); |
| sounds.set(j, a); |
| } |
| } |
| } |
| } |
| } |