/*
 * File    : ExportTorrentWizardFilePanel.java
 * Created : 13-Oct-2003
 * By      : stuff
 * 
 * Azureus - a Java Bittorrent client
 *
 * 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.
 *
 * 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 ( see the LICENSE file ).
 *
 * 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 org.gudy.azureus2.ui.swt.exporttorrent.wizard;

/**
 * @author parg
 *
 */

import java.io.File;

import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.FileDialog;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Listener;
import org.eclipse.swt.widgets.Text;
import org.gudy.azureus2.core3.internat.MessageText;
import org.gudy.azureus2.core3.util.Constants;
import org.gudy.azureus2.ui.swt.Messages;
import org.gudy.azureus2.ui.swt.wizard.*;

public class 
ExportTorrentWizardOutputPanel 
	extends AbstractWizardPanel 
{
	protected boolean file_valid = false;
	
	public 
	ExportTorrentWizardOutputPanel(
	  	Wizard 					wizard, 
	  	IWizardPanel 			previous ) 
	{
		super(wizard, previous);
	}
	
	public void 
	show() 
	{
		wizard.setTitle(MessageText.getString("exportTorrentWizard.exportfile.title"));
		Composite rootPanel = wizard.getPanel();
		GridLayout layout = new GridLayout();
		layout.numColumns = 1;
		rootPanel.setLayout(layout);
	
		Composite panel = new Composite(rootPanel, SWT.NULL);
		GridData gridData = new GridData(GridData.VERTICAL_ALIGN_CENTER | GridData.FILL_HORIZONTAL);
		panel.setLayoutData(gridData);
		layout = new GridLayout();
		layout.numColumns = 3;
		panel.setLayout(layout);

		Label label = new Label(panel, SWT.WRAP);
		gridData = new GridData();
		gridData.horizontalSpan = 3;
		gridData.widthHint = 380;
		label.setLayoutData(gridData);
		Messages.setLanguageText(label, "exportTorrentWizard.exportfile.message");
	
		label = new Label(panel,SWT.NULL);
		Messages.setLanguageText(label, "exportTorrentWizard.exportfile.path");
	
		final Text textPath = new Text(panel,SWT.BORDER);
		gridData = new GridData(GridData.FILL_HORIZONTAL);
		textPath.setLayoutData(gridData);
		textPath.setText(((ExportTorrentWizard)wizard).getExportFile());
	
		Button browse = new Button(panel,SWT.PUSH);
		Messages.setLanguageText(browse, "exportTorrentWizard.exportfile.browse");
		browse.addListener(SWT.Selection,new Listener() {
			
		  public void handleEvent(Event arg0){
		  	
			FileDialog fd = new FileDialog(wizard.getWizardWindow(), SWT.SAVE );
			
			fd.setFileName(textPath.getText());
			
			fd.setFilterExtensions(new String[]{"*.xml", Constants.FILE_WILDCARD});
			
			String path = fd.open();
			
			if(path != null) {
				
			  textPath.setText(path);
			}     
		  }
		});
	
		textPath.addListener(SWT.Modify, new Listener(){
			
		  public void handleEvent(Event event) {
			String path = textPath.getText();
			
			pathSet( path );
		  }
		});
	
		textPath.setText(((ExportTorrentWizard)wizard).getExportFile());
		
		textPath.setFocus();
	}
  
	protected void
	pathSet(
		String	path )
	{
		((ExportTorrentWizard)wizard).setExportFile( path );
			
		file_valid = false;
			
		try {
				
		  File f = new File(path);
			  
		  if(f.exists()){
			  	
			if (f.isFile()){
				wizard.setErrorMessage("");
					
				file_valid = true;
			}else{
			  		
				wizard.setErrorMessage(MessageText.getString("exportTorrentWizard.exportfile.invalidPath"));
			}            
		  }else{
			  	
			wizard.setErrorMessage("");
				
			file_valid = true;	
		  }
		} catch(Exception e){
				
		  wizard.setErrorMessage(MessageText.getString("exportTorrentWizard.exportfile.invalidPath"));
		}
			
		wizard.setFinishEnabled(file_valid);
	}		
	
	public boolean
	isFinishEnabled()
	{
		return( file_valid );
	}
		
	public boolean 
	isFinishSelectionOK()
	{
		return( ((ExportTorrentWizard)wizard).performExport() );
	}
	  
	public IWizardPanel getFinishPanel(){
		
		return new ExportTorrentWizardFinishPanel(((ExportTorrentWizard)wizard),this);
	}
}