commentitem.java

这是一个基于java编写的torrent的P2P源码

/*
 * File    : CommentItem.java
 * Created : 26 Oct 2006
 * By      : Allan Crooks
 *
 * Copyright (C) 2004, 2005, 2006 Aelitis SAS, All rights Reserved
 *
 * 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
 *
 * AELITIS, SAS au capital de 46,603.30 euros,
 * 8 Allee Lenotre, La Grille Royale, 78600 Le Mesnil le Roi, France.
 */

package org.gudy.azureus2.ui.swt.views.tableitems.mytorrents;

import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.MenuItem;
import org.gudy.azureus2.core3.download.DownloadManager;
import org.gudy.azureus2.core3.torrent.TOTorrent;
import org.gudy.azureus2.plugins.ui.tables.*;
import org.gudy.azureus2.ui.swt.SimpleTextEntryWindow;
import org.gudy.azureus2.ui.swt.views.MyTorrentsView;
import org.gudy.azureus2.ui.swt.views.TableView.GroupTableRowRunner;
import org.gudy.azureus2.ui.swt.views.table.TableRowCore;
import org.gudy.azureus2.ui.swt.views.table.utils.CoreTableColumn;

import com.aelitis.azureus.core.AzureusCoreFactory;

/**
 * User-editable comment for a download.
 *
 * @author amc1
 */
public class CommentItem
       extends CoreTableColumn 
       implements TableCellRefreshListener, TableCellMouseListener
{
  /** Default Constructor */
  public CommentItem(String sTableID) {
    super("comment", POSITION_INVISIBLE, 300, sTableID);
    setRefreshInterval(INTERVAL_LIVE);
    setType(TableColumn.TYPE_TEXT);
  }

  public void refresh(TableCell cell) {
    String comment = null;
    DownloadManager dm = (DownloadManager)cell.getDataSource();
    comment = dm.getDownloadState().getUserComment();
    if (comment != null) {
    	comment = comment.replace('\r', ' ').replace('\n', ' ');
    }
    cell.setText((comment == null) ? "" : comment);
  }
  
	public void cellMouseTrigger(TableCellMouseEvent event) {
		DownloadManager dm = (DownloadManager) event.cell.getDataSource();
		if (dm == null) {return;}
		
		event.skipCoreFunctionality = true;
		if (event.eventType != TableCellMouseEvent.EVENT_MOUSEDOUBLECLICK) {return;}
		openEditCommentWindow(dm);
	}
	
	/* Package private - used by CommentIconItem too. */
	static void openEditCommentWindow(DownloadManager dm) {
		
		// Create dialog box.
		String suggested = dm.getDownloadState().getUserComment(); 
		String msg_key_prefix = "MyTorrentsView.menu.edit_comment.enter.";
		SimpleTextEntryWindow text_entry = new SimpleTextEntryWindow(Display.getCurrent());
		text_entry.setTitle(msg_key_prefix + "title");
		text_entry.setMessage(msg_key_prefix + "message");
		text_entry.setPreenteredText(suggested, false);
		text_entry.setMultiLine(true);
		text_entry.prompt();
		if (text_entry.hasSubmittedInput()) {
			String value = text_entry.getSubmittedInput();
			String value_to_set = (value.length() == 0) ? null : value;
			dm.getDownloadState().setUserComment(value_to_set);
		}
	}	

  
}