| /******************************************************************************* |
| * Copyright (c) 2003, 2005 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.jface.viewers.Viewer; |
| import org.eclipse.jface.viewers.IStructuredContentProvider; |
| /** |
| * Audio table content provider. |
| */ |
| class AudioTableContentProvider implements IStructuredContentProvider { |
| protected static final String MISC_CATEGORY = "miscCategory"; |
| |
| /** |
| * AudioTableContentProvider constructor comment. |
| */ |
| public AudioTableContentProvider() { |
| super(); |
| } |
| |
| /** |
| * Disposes of this content provider. |
| * This is called by the viewer when it is disposed. |
| */ |
| public void dispose() { |
| // do nothing |
| } |
| |
| /** |
| * 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 categories = core.getCategories(); |
| Map sounds = core.getSounds(); |
| |
| List list = new ArrayList(sounds.size()); |
| |
| // first, find all the categories and sort |
| List cats = new ArrayList(); |
| Iterator iterator = categories.keySet().iterator(); |
| while (iterator.hasNext()) |
| cats.add(iterator.next()); |
| sortCategories(cats); |
| |
| // list them, ignoring empty ones |
| iterator = categories.keySet().iterator(); |
| while (iterator.hasNext()) { |
| String id = (String) iterator.next(); |
| List 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 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 List getSoundsByCategory(String category) { |
| AudioCore core = AudioCore.getInstance(); |
| |
| Map sounds = core.getSounds(); |
| Map categories = core.getCategories(); |
| List list = new ArrayList(); |
| |
| Iterator iterator = sounds.keySet().iterator(); |
| while (iterator.hasNext()) { |
| String id = (String) iterator.next(); |
| Sound 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; |
| } |
| |
| /** |
| * Notifies this content provider that the given viewer's input |
| * has been switched to a different element. |
| * <p> |
| * A typical use for this method is registering the content provider as a listener |
| * to changes on the new input (using model-specific means), and deregistering the viewer |
| * from the old input. In response to these change notifications, the content provider |
| * propagates the changes to the viewer. |
| * </p> |
| * |
| * @param viewer the viewer |
| * @param oldInput the old input element, or <code>null</code> if the viewer |
| * did not previously have an input |
| * @param newInput the new input element, or <code>null</code> if the viewer |
| * does not have an input |
| */ |
| public void inputChanged(Viewer viewer, Object oldInput, Object newInput) { |
| // do nothing |
| } |
| |
| /** |
| * Sorts a list of categories, in place. |
| * |
| * @param list java.util.List |
| */ |
| protected void sortCategories(List list) { |
| int size = list.size(); |
| if (size < 2) |
| return; |
| |
| Map categories = AudioCore.getInstance().getCategories(); |
| |
| for (int i = 0; i < size - 1; i++) { |
| for (int j = i+1; j < size; j++) { |
| String a = (String) list.get(i); |
| String aa = (String) categories.get(a); |
| String b = (String) list.get(j); |
| String bb = (String) 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 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 = (Sound) sounds.get(i); |
| Sound b = (Sound) sounds.get(j); |
| if (a.getName().compareTo(b.getName()) > 0) { |
| sounds.set(i, b); |
| sounds.set(j, a); |
| } |
| } |
| } |
| } |
| } |