/*  Copyright (C) 2003-2011 JabRef contributors.
    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, or
    (at your option) any later version.

    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.

    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.,
    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
package net.sf.jabref.collab;

import javax.swing.JComponent;
import javax.swing.JScrollPane;

import net.sf.jabref.BasePanel;
import net.sf.jabref.Globals;
import net.sf.jabref.BibtexDatabase;
import net.sf.jabref.undo.NamedCompound;
import net.sf.jabref.undo.UndoablePreambleChange;

public class PreambleChange extends Change {

  String tmp, mem, disk;
  InfoPane tp = new InfoPane();
  JScrollPane sp = new JScrollPane(tp);

  public PreambleChange(String tmp, String mem, String disk) {
    super("Changed preamble");
    this.disk = disk;
    this.mem = mem;
    this.tmp = tmp;

    StringBuffer text = new StringBuffer();
    text.append("<FONT SIZE=3>");
      text.append("<H2>").append(Globals.lang("Changed preamble")).append("</H2>");

    if ((disk != null) && !disk.equals(""))
        text.append("<H3>").append(Globals.lang("Value set externally")).append(":</H3>" + "<CODE>").append(disk).append("</CODE>");
    else
        text.append("<H3>").append(Globals.lang("Value cleared externally")).append("</H3>");

    if ((mem != null) && !mem.equals(""))
        text.append("<H3>").append(Globals.lang("Current value")).append(":</H3>" + "<CODE>").append(mem).append("</CODE>");

      //tp.setContentType("text/html");
      tp.setText(text.toString());
  }

  public boolean makeChange(BasePanel panel, BibtexDatabase secondary, NamedCompound undoEdit) {
      panel.database().setPreamble(disk);
      undoEdit.addEdit(new UndoablePreambleChange(panel.database(), panel, mem, disk));
      secondary.setPreamble(disk);
      return true;
  }

  JComponent description() {
    return sp;
  }
}