/*FreeMind - A Program for creating and viewing Mindmaps
 *Copyright (C) 2000-2004  Joerg Mueller, Daniel Polansky, Christian Foltin and others.
 *
 *See COPYING for Details
 *
 *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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 * Created on ???
 */
/*$Id: MindMapNodesSelection.java,v 1.2.18.2 2005/04/24 18:49:12 christianfoltin Exp $*/
package freemind.controller;
import java.awt.datatransfer.*;
import java.io.*;
import java.util.List;

public class MindMapNodesSelection implements Transferable, ClipboardOwner {

   private String nodesContent;
   private String stringContent;
   private String rtfContent;
   private String dropActionContent;
   private final String htmlContent;
   private final List fileList;

   public static DataFlavor mindMapNodesFlavor = null;
   public static DataFlavor rtfFlavor = null;
   public static DataFlavor htmlFlavor = null;
   public static DataFlavor fileListFlavor = null;
   /** fc, 7.8.2004: This is a quite interisting flavor, but how does it works???*/
   public static DataFlavor dropActionFlavor = null;

   static {
      try {
         mindMapNodesFlavor = new DataFlavor("text/freemind-nodes; class=java.lang.String");
         rtfFlavor = new DataFlavor("text/rtf; class=java.io.InputStream"); 
         htmlFlavor = new DataFlavor("text/html; class=java.lang.String");
         fileListFlavor = new DataFlavor("application/x-java-file-list; class=java.util.List");
         dropActionFlavor = new DataFlavor("text/drop-action; class=java.lang.String"); 
      }

      catch(Exception e) {
         System.err.println(e); }}

   //

   public MindMapNodesSelection(String nodesContent, String stringContent,
            String rtfContent, String dropActionContent, String htmlContent,
            List fileList) {
        this.nodesContent = nodesContent;
        this.rtfContent = rtfContent;
        this.stringContent = stringContent;
        this.dropActionContent = dropActionContent;
        this.htmlContent = htmlContent;
        this.fileList = fileList;
    }

   public Object getTransferData(DataFlavor flavor) throws UnsupportedFlavorException {
      if (flavor.equals(DataFlavor.stringFlavor)) {
         return stringContent; }
      if (flavor.equals(mindMapNodesFlavor)) {
         return nodesContent; }
      if (flavor.equals(dropActionFlavor)) {
         return dropActionContent; }
      if (flavor.equals(rtfFlavor)) {
         byte[] byteArray = rtfContent.getBytes();
         // for (int i = 0; i < byteArray.length; ++i) {
         //   System.out.println(byteArray[i]); }

         return new ByteArrayInputStream(byteArray); }
      if(flavor.equals(htmlFlavor)) {
          return htmlContent;
      }
      if(flavor.equals(fileListFlavor)) {
          return fileList;
      }
      throw new UnsupportedFlavorException(flavor); }

   public DataFlavor[] getTransferDataFlavors() {
      return new DataFlavor[] { DataFlavor.stringFlavor, mindMapNodesFlavor, rtfFlavor, dropActionFlavor}; }

   public boolean isDataFlavorSupported(DataFlavor flavor) {
       if(flavor.equals(DataFlavor.stringFlavor) && stringContent != null) 
           return true;
       if(flavor.equals(mindMapNodesFlavor) && nodesContent != null) 
           return true;
       if(flavor.equals(rtfFlavor) && rtfContent != null) 
           return true;
       if(flavor.equals(dropActionFlavor) && dropActionContent != null) 
           return true;
       if(flavor.equals(htmlFlavor) && htmlContent != null) 
           return true;
       if(flavor.equals(fileListFlavor) && (fileList != null) && fileList.size()> 0) 
           return true;
       return false;
   }

   public void lostOwnership(Clipboard clipboard, Transferable contents) {}

   public void setDropAction(String dropActionContent) {
      this.dropActionContent = dropActionContent; }
}
