albumwizard.java

eclise rcp 项目,是非常好的学习源码

/*******************************************************************************
 * Copyright (c) 2007 Siemens AG
 * 
 * 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:
 *    Kai T鰀ter - initial API and implementation
 *******************************************************************************/

package com.siemens.ct.mp3m.ui.wizards;

import java.util.List;

import org.eclipse.jface.wizard.Wizard;

import com.siemens.ct.mp3m.model.IMP3Info;
import com.siemens.ct.mp3m.model.MP3Infos;
import com.siemens.ct.mp3m.model.logical.Artists;

/**
 * A simple Wizard do demonstrate the Wizard concept. Here the user can select
 * an artist and an album of that artist. Afterwards the name of the album will
 * be changed and all MP3 files that match with artist and old album name will
 * be retagged to the new album name.
 * 
 * @author Kai Toedter
 * @author $LastChangedBy: toedter_k $
 * @version $LastChangedDate: 2007-02-22 10:13:57 +0100 (Do, 22 Feb 2007) $
 * @version $LastChangedRevision: 469 $
 * 
 */
public class AlbumWizard extends Wizard {
	private AlbumSelectionPage albumSelectionPage;
	private AlbumRenamePage albumRenamepage;
	private AlbumWizardModel model;
	
	public AlbumWizard() {
		setWindowTitle("Album Wizard");
		model = new AlbumWizardModel();
	}

	@Override
	public void addPages() {
		albumSelectionPage = new AlbumSelectionPage(model);
		addPage(albumSelectionPage);
		albumRenamepage = new AlbumRenamePage(model);
		addPage(albumRenamepage);
	}

	@Override
	public boolean performFinish() {
		List<IMP3Info> mp3Infos =  MP3Infos.getMP3Infos();
		for(IMP3Info info: mp3Infos) {
			if(info.getArtist().equals(model.getArtist()) && info.getAlbum().equals(model.getOldName())) {
				info.setAlbum(model.getNewName());
				info.saveMP3File();
			}
		}
		Artists.recomputeModel();
		return true;
	}

	@Override
	public boolean canFinish() {
		// cannot complete the wizard from the album selection  page
		if (this.getContainer().getCurrentPage() == albumSelectionPage)
			return false;

		return albumRenamepage.checkStatus(false).isOK();
	}

}