/**
  * Returns an object which represents the data to be transferred. The class of the object returned
  * is defined by the representation class of the flavor.
  *
  * @param flavor the requested flavor for the data
  * @see DataFlavor#getRepresentationClass
  * @exception IOException if the data is no longer available in the requested flavor.
  * @exception UnsupportedFlavorException if the requested data flavor is not supported.
  */
 @Override
 public Object getTransferData(DataFlavor flavor) throws UnsupportedFlavorException, IOException {
   Transferable t = (Transferable) transferables.get(flavor);
   if (t == null) {
     throw new UnsupportedFlavorException(flavor);
   }
   return t.getTransferData(flavor);
 }
Beispiel #2
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 public void drop(DropTargetDropEvent dtde) {
   dtde.acceptDrop(DnDConstants.ACTION_COPY);
   DataFlavor[] flavors = null;
   try {
     Transferable t = dtde.getTransferable();
     iterator = null;
     flavors = t.getTransferDataFlavors();
     if (IJ.debugMode) IJ.log("DragAndDrop.drop: " + flavors.length + " flavors");
     for (int i = 0; i < flavors.length; i++) {
       if (IJ.debugMode) IJ.log("  flavor[" + i + "]: " + flavors[i].getMimeType());
       if (flavors[i].isFlavorJavaFileListType()) {
         Object data = t.getTransferData(DataFlavor.javaFileListFlavor);
         iterator = ((List) data).iterator();
         break;
       } else if (flavors[i].isFlavorTextType()) {
         Object ob = t.getTransferData(flavors[i]);
         if (!(ob instanceof String)) continue;
         String s = ob.toString().trim();
         if (IJ.isLinux() && s.length() > 1 && (int) s.charAt(1) == 0) s = fixLinuxString(s);
         ArrayList list = new ArrayList();
         if (s.indexOf("href=\"") != -1 || s.indexOf("src=\"") != -1) {
           s = parseHTML(s);
           if (IJ.debugMode) IJ.log("  url: " + s);
           list.add(s);
           this.iterator = list.iterator();
           break;
         }
         BufferedReader br = new BufferedReader(new StringReader(s));
         String tmp;
         while (null != (tmp = br.readLine())) {
           tmp = java.net.URLDecoder.decode(tmp.replaceAll("\\+", "%2b"), "UTF-8");
           if (tmp.startsWith("file://")) tmp = tmp.substring(7);
           if (IJ.debugMode) IJ.log("  content: " + tmp);
           if (tmp.startsWith("http://")) list.add(s);
           else list.add(new File(tmp));
         }
         this.iterator = list.iterator();
         break;
       }
     }
     if (iterator != null) {
       Thread thread = new Thread(this, "DrawAndDrop");
       thread.setPriority(Math.max(thread.getPriority() - 1, Thread.MIN_PRIORITY));
       thread.start();
     }
   } catch (Exception e) {
     dtde.dropComplete(false);
     return;
   }
   dtde.dropComplete(true);
   if (flavors == null || flavors.length == 0) {
     if (IJ.isMacOSX())
       IJ.error(
           "First drag and drop ignored. Please try again. You can avoid this\n"
               + "problem by dragging to the toolbar instead of the status bar.");
     else IJ.error("Drag and drop failed");
   }
 }
Beispiel #3
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 /**
  * Returns the contents of the specified transferable.
  *
  * @param tr transferable
  * @return contents
  */
 @SuppressWarnings("unchecked")
 public static ArrayList<Object> contents(final Transferable tr) {
   final ArrayList<Object> list = new ArrayList<>();
   try {
     if (tr.isDataFlavorSupported(DataFlavor.javaFileListFlavor)) {
       for (final File fl : (List<File>) tr.getTransferData(DataFlavor.javaFileListFlavor))
         list.add(fl);
     } else if (tr.isDataFlavorSupported(DataFlavor.stringFlavor)) {
       list.add(tr.getTransferData(DataFlavor.stringFlavor));
     }
   } catch (final Exception ex) {
     Util.stack(ex);
   }
   return list;
 }
 public void add(Transferable t) {
   DataFlavor[] f = t.getTransferDataFlavors();
   for (int i = 0; i < f.length; i++) {
     if (!transferables.containsKey(f[i])) {
       flavors.add(f[i]);
     }
     transferables.put(f[i], t);
   }
 }
Beispiel #5
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  /**
   * Gets a Reader for a text flavor, decoded, if necessary, for the expected charset (encoding).
   * The supported representation classes are <code>java.io.Reader</code>, <code>java.lang.String
   * </code>, <code>java.nio.CharBuffer</code>, <code>[C</code>, <code>java.io.InputStream</code>,
   * <code>java.nio.ByteBuffer</code>, and <code>[B</code>.
   *
   * <p>Because text flavors which do not support the charset parameter are encoded in a
   * non-standard format, this method should not be called for such flavors. However, in order to
   * maintain backward-compatibility, if this method is called for such a flavor, this method will
   * treat the flavor as though it supports the charset parameter and attempt to decode it
   * accordingly. See <code>selectBestTextFlavor</code> for a list of text flavors which do not
   * support the charset parameter.
   *
   * @param transferable the <code>Transferable</code> whose data will be requested in this flavor
   * @return a <code>Reader</code> to read the <code>Transferable</code>'s data
   * @exception IllegalArgumentException if the representation class is not one of the seven listed
   *     above
   * @exception IllegalArgumentException if the <code>Transferable</code> has <code>null</code> data
   * @exception NullPointerException if the <code>Transferable</code> is <code>null</code>
   * @exception UnsupportedEncodingException if this flavor's representation is <code>
   *     java.io.InputStream</code>, <code>java.nio.ByteBuffer</code>, or <code>[B</code> and this
   *     flavor's encoding is not supported by this implementation of the Java platform
   * @exception UnsupportedFlavorException if the <code>Transferable</code> does not support this
   *     flavor
   * @exception IOException if the data cannot be read because of an I/O error
   * @see #selectBestTextFlavor
   * @since 1.3
   */
  public Reader getReaderForText(Transferable transferable)
      throws UnsupportedFlavorException, IOException {
    Object transferObject = transferable.getTransferData(this);
    if (transferObject == null) {
      throw new IllegalArgumentException("getTransferData() returned null");
    }

    if (transferObject instanceof Reader) {
      return (Reader) transferObject;
    } else if (transferObject instanceof String) {
      return new StringReader((String) transferObject);
    } else if (transferObject instanceof CharBuffer) {
      CharBuffer buffer = (CharBuffer) transferObject;
      int size = buffer.remaining();
      char[] chars = new char[size];
      buffer.get(chars, 0, size);
      return new CharArrayReader(chars);
    } else if (transferObject instanceof char[]) {
      return new CharArrayReader((char[]) transferObject);
    }

    InputStream stream = null;

    if (transferObject instanceof InputStream) {
      stream = (InputStream) transferObject;
    } else if (transferObject instanceof ByteBuffer) {
      ByteBuffer buffer = (ByteBuffer) transferObject;
      int size = buffer.remaining();
      byte[] bytes = new byte[size];
      buffer.get(bytes, 0, size);
      stream = new ByteArrayInputStream(bytes);
    } else if (transferObject instanceof byte[]) {
      stream = new ByteArrayInputStream((byte[]) transferObject);
    }

    if (stream == null) {
      throw new IllegalArgumentException(
          "transfer data is not Reader, String, CharBuffer, char array, InputStream, ByteBuffer, or byte array");
    }

    String encoding = getParameter("charset");
    return (encoding == null)
        ? new InputStreamReader(stream)
        : new InputStreamReader(stream, encoding);
  }
  /**
   * Paste the contents of the clipboard into the console buffer
   *
   * @return true if clipboard contents pasted
   */
  public boolean paste() throws IOException {
    Clipboard clipboard;
    try { // May throw ugly exception on system without X
      clipboard = Toolkit.getDefaultToolkit().getSystemClipboard();
    } catch (Exception e) {
      return false;
    }

    if (clipboard == null) {
      return false;
    }

    Transferable transferable = clipboard.getContents(null);

    if (transferable == null) {
      return false;
    }

    try {
      Object content = transferable.getTransferData(DataFlavor.plainTextFlavor);

      /*
       * This fix was suggested in bug #1060649 at
       * http://sourceforge.net/tracker/index.php?func=detail&aid=1060649&group_id=64033&atid=506056
       * to get around the deprecated DataFlavor.plainTextFlavor, but it
       * raises a UnsupportedFlavorException on Mac OS X
       */
      if (content == null) {
        try {
          content = new DataFlavor().getReaderForText(transferable);
        } catch (Exception e) {
        }
      }

      if (content == null) {
        return false;
      }

      String value;

      if (content instanceof Reader) {
        // TODO: we might want instead connect to the input stream
        // so we can interpret individual lines
        value = "";

        String line = null;

        for (BufferedReader read = new BufferedReader((Reader) content);
            (line = read.readLine()) != null; ) {
          if (value.length() > 0) {
            value += "\n";
          }

          value += line;
        }
      } else {
        value = content.toString();
      }

      if (value == null) {
        return true;
      }

      putString(value);

      return true;
    } catch (UnsupportedFlavorException ufe) {
      if (debugger != null) debug(ufe + "");

      return false;
    }
  }