예제 #1
1
  /**
   * Loads the drawing. By convention this method is invoked on a worker thread.
   *
   * @param progress A ProgressIndicator to inform the user about the progress of the operation.
   * @return The Drawing that was loaded.
   */
  protected Drawing loadDrawing(ProgressIndicator progress) throws IOException {
    Drawing drawing = createDrawing();
    if (getParameter("datafile") != null) {
      URL url = new URL(getDocumentBase(), getParameter("datafile"));
      URLConnection uc = url.openConnection();

      // Disable caching. This ensures that we always request the
      // newest version of the drawing from the server.
      // (Note: The server still needs to set the proper HTTP caching
      // properties to prevent proxies from caching the drawing).
      if (uc instanceof HttpURLConnection) {
        ((HttpURLConnection) uc).setUseCaches(false);
      }

      // Read the data into a buffer
      int contentLength = uc.getContentLength();
      InputStream in = uc.getInputStream();
      try {
        if (contentLength != -1) {
          in = new BoundedRangeInputStream(in);
          ((BoundedRangeInputStream) in).setMaximum(contentLength + 1);
          progress.setProgressModel((BoundedRangeModel) in);
          progress.setIndeterminate(false);
        }
        BufferedInputStream bin = new BufferedInputStream(in);
        bin.mark(512);

        // Read the data using all supported input formats
        // until we succeed
        IOException formatException = null;
        for (InputFormat format : drawing.getInputFormats()) {
          try {
            bin.reset();
          } catch (IOException e) {
            uc = url.openConnection();
            in = uc.getInputStream();
            in = new BoundedRangeInputStream(in);
            ((BoundedRangeInputStream) in).setMaximum(contentLength + 1);
            progress.setProgressModel((BoundedRangeModel) in);
            bin = new BufferedInputStream(in);
            bin.mark(512);
          }
          try {
            bin.reset();
            format.read(bin, drawing, true);
            formatException = null;
            break;
          } catch (IOException e) {
            formatException = e;
          }
        }
        if (formatException != null) {
          throw formatException;
        }
      } finally {
        in.close();
      }
    }
    return drawing;
  }
  @Override
  public void mouseMoved(MouseEvent evt) {
    Point point = evt.getPoint();
    updateCursor(editor.findView((Container) evt.getSource()), point);
    DrawingView view = editor.findView((Container) evt.getSource());
    updateCursor(view, point);
    if (view == null || editor.getActiveView() != view) {
      clearHoverHandles();
    } else {
      // Search first, if one of the selected figures contains
      // the current mouse location. Only then search for other
      // figures. This search sequence is consistent with the
      // search sequence of the SelectionTool.
      Figure figure = null;
      Point2D.Double p = view.viewToDrawing(point);
      for (Figure f : view.getSelectedFigures()) {
        if (f.contains(p)) {
          figure = f;
        }
      }
      if (figure == null) {
        figure = view.findFigure(point);
        Drawing drawing = view.getDrawing();
        while (figure != null && !figure.isSelectable()) {
          figure = drawing.findFigureBehind(p, figure);
        }
      }

      updateHoverHandles(view, figure);
    }
  }
예제 #3
0
  /** Reads the view from the specified uri. */
  @Override
  public void read(URI f, URIChooser chooser) throws IOException {
    try {
      final Drawing drawing = createDrawing();
      InputFormat inputFormat = drawing.getInputFormats().get(0);
      inputFormat.read(f, drawing, true);
      SwingUtilities.invokeAndWait(
          new Runnable() {

            @Override
            public void run() {
              view.getDrawing().removeUndoableEditListener(undo);
              view.setDrawing(drawing);
              view.getDrawing().addUndoableEditListener(undo);
              undo.discardAllEdits();
            }
          });
    } catch (InterruptedException e) {
      InternalError error = new InternalError();
      e.initCause(e);
      throw error;
    } catch (InvocationTargetException e) {
      InternalError error = new InternalError();
      e.initCause(e);
      throw error;
    }
  }
예제 #4
0
  public void setData(String text) {
    if (text != null && text.length() > 0) {
      InputStream in = null;
      try {
        Object result = null;
        Drawing drawing = createDrawing();
        // Try to read the data using all known input formats.
        for (InputFormat fmt : drawing.getInputFormats()) {
          try {
            fmt.read(in, drawing);
            in = new ByteArrayInputStream(text.getBytes("UTF8"));
            result = drawing;
            break;
          } catch (IOException e) {
            result = e;
          }
        }
        if (result instanceof IOException) {
          throw (IOException) result;
        }

        setDrawing(drawing);
      } catch (Throwable e) {
        getDrawing().removeAllChildren();
        SVGTextFigure tf = new SVGTextFigure();
        tf.setText(e.getMessage());
        tf.setBounds(new Point2D.Double(10, 10), new Point2D.Double(100, 100));
        getDrawing().add(tf);
        e.printStackTrace();
      } finally {
        if (in != null) {
          try {
            in.close();
          } catch (IOException ex) {
            ex.printStackTrace();
          }
        }
      }
    }
  }
예제 #5
0
 /**
  * Writes the drawing to the specified output stream.
  * This method applies the specified drawingTransform to the drawing, and draws
  * it on an image of the specified getChildCount.
  */
 public void write(OutputStream out, Drawing drawing,
         AffineTransform drawingTransform, Dimension imageSize) throws IOException {
     write(out, drawing.getChildren(), drawingTransform, imageSize);
 }
예제 #6
0
 public void write(OutputStream out, Drawing drawing) throws IOException {
     write(out, drawing.getChildren());
 }
예제 #7
0
 public void setDrawing(Drawing d) {
   undoManager.discardAllEdits();
   view.getDrawing().removeUndoableEditListener(undoManager);
   view.setDrawing(d);
   d.addUndoableEditListener(undoManager);
 }
예제 #8
0
 /** Writes the view to the specified uri. */
 @Override
 public void write(URI f, URIChooser chooser) throws IOException {
   Drawing drawing = view.getDrawing();
   OutputFormat outputFormat = drawing.getOutputFormats().get(0);
   outputFormat.write(f, drawing);
 }