/** Initializes the applet SVGApplet */ public void init() { // Set look and feel // ----------------- try { UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName()); } catch (Throwable e) { // Do nothing. // If we can't set the desired look and feel, UIManager does // automaticaly the right thing for us. } // Display copyright info while we are loading the data // ---------------------------------------------------- Container c = getContentPane(); c.setLayout(new BoxLayout(c, BoxLayout.Y_AXIS)); String[] labels = getAppletInfo().split("\n"); // Strings.split(getAppletInfo(), '\n'); for (int i = 0; i < labels.length; i++) { c.add(new JLabel((labels[i].length() == 0) ? " " : labels[i])); } // We load the data using a worker thread // -------------------------------------- new Worker() { public Object construct() { Object result = null; InputStream in = null; try { // Try to read the data using all known input formats. Drawing drawing = createDrawing(); for (InputFormat fmt : drawing.getInputFormats()) { try { if (getParameter("data") != null) { in = new ByteArrayInputStream(getParameter("data").getBytes("UTF8")); } else if (getParameter("datafile") != null) { URL url = new URL(getDocumentBase(), getParameter("datafile")); in = url.openConnection().getInputStream(); } if (in != null) { fmt.read(in, drawing); result = drawing; break; } } catch (IOException e) { result = e; } } } catch (Throwable t) { result = t; } finally { if (in != null) { try { in.close(); } catch (IOException ex) { // ignore } } } return result; } public void finished(Object result) { if (result instanceof Throwable) { ((Throwable) result).printStackTrace(); } Container c = getContentPane(); c.setLayout(new BorderLayout()); c.removeAll(); c.add(drawingPanel = new SVGDrawingPanel()); initComponents(); if (result != null) { if (result instanceof Drawing) { setDrawing((Drawing) result); } else if (result instanceof Throwable) { getDrawing().add(new SVGTextFigure(result.toString())); ((Throwable) result).printStackTrace(); } } c.validate(); } }.start(); }
/** * Displays a progress indicator and then invokes <code>loadDrawing</code> on a worker thread. * Displays the drawing panel when done successfully. Displays an error message when done * unsuccessfully. * * @see #loadDrawing */ @Override public final void init() { // set the language of the applet if (getParameter("Locale") != null) { Locale.setDefault(new Locale(getParameter("Locale"))); } final ResourceBundleUtil labels = ResourceBundleUtil.getBundle("org.jhotdraw.samples.svg.Labels"); // Set look and feel // ----------------- try { UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName()); } catch (Throwable e) { // Do nothing. // If we can't set the desired look and feel, UIManager does // automaticaly the right thing for us. } // Set our own popup factory, because the one that comes with Mac OS X // creates translucent popups which is not useful for color selection // using pop menus. try { PopupFactory.setSharedInstance(new PopupFactory()); } catch (Throwable e) { // If we can't set the popup factory, we have to use what is there. } // Display a progress indicator while we are loading the drawing // ---------------------------------------------------------- Container c = getContentPane(); final ProgressIndicator progress = new ProgressIndicator(getName(), labels.getString("progressInitializing")); c.add(progress); progress.revalidate(); // Load the drawing using a worker thread // -------------------------------------- new Worker<Drawing>() { @Override protected Drawing construct() throws Exception { Thread t = new Thread() { @Override public void run() { try { drawingComponent = createDrawingComponent(); } catch (Throwable t) { t.printStackTrace(); } } }; t.start(); try { progress.setNote(labels.getString("progressLoading")); Drawing drawing = loadDrawing(progress); progress.setNote(labels.getString("progressOpeningEditor")); progress.setIndeterminate(true); return drawing; } finally { t.join(); } } @Override protected void done(Drawing result) { Container c = getContentPane(); c.removeAll(); c.setLayout(new BorderLayout()); c.add(drawingComponent.getComponent()); initComponents(); if (result != null) { setDrawing(result); } drawingComponent.revalidate(); ((JComponent) c).revalidate(); } @Override protected void failed(Throwable error) { Drawing d = createDrawing(); String message = (error.getMessage() == null) ? error.toString() : error.getMessage(); SVGTextAreaFigure txt = new SVGTextAreaFigure( labels.getFormatted("messageLoadFailed", getParameter("DrawingURL"), message)); txt.setBounds(new Point2D.Double(0, 0), new Point2D.Double(getWidth(), getHeight())); d.add(txt); done(d); /* Container c = getContentPane(); c.setLayout(new BorderLayout()); c.removeAll(); Throwable error = result; error.printStackTrace(); String message = (error.getMessage() == null) ? error.toString() : error.getMessage(); MessagePanel mp = new MessagePanel( UIManager.getIcon("OptionPane.errorIcon"), labels.getFormatted("messageLoadFailed", htmlencode(getParameter("DrawingURL")), htmlencode(message))); c.add(mp); mp.addActionListener(new ActionListener() { @Override public void actionPerformed(ActionEvent evt) { if ("close".equals(evt.getActionCommand())) { close(); } } }); mp.revalidate(); */ } @Override protected void finished() { long end = System.currentTimeMillis(); System.out.println("AbstractDrawingApplet startup latency:" + (end - start)); } }.start(); }