void editorPane_keyPressed(KeyEvent e) {
   StyledDocument doc = editorPane.getStyledDocument();
   int pos = editorPane.getCaretPosition();
   int code = e.getKeyCode();
   Element el;
   switch (code) {
     case KeyEvent.VK_BACK_SPACE:
     case KeyEvent.VK_DELETE:
     case KeyEvent.VK_LEFT:
     case KeyEvent.VK_KP_LEFT:
       if (pos == 0) return;
       // we want to get the element to the left of position.
       el = doc.getCharacterElement(pos - 1);
       break;
     case KeyEvent.VK_RIGHT:
     case KeyEvent.VK_KP_RIGHT:
       // we want to get the element to the right of position.
       el = doc.getCharacterElement(pos + 1);
       break;
     default:
       return; // bail we don't handle it.
   }
   AttributeSet attr = el.getAttributes();
   String el_name = (String) attr.getAttribute(StyleConstants.NameAttribute);
   int el_range = el.getEndOffset() - el.getStartOffset() - 1;
   if (el_name.startsWith("Parameter") && StyleConstants.getComponent(attr) != null) {
     try {
       switch (code) {
         case KeyEvent.VK_BACK_SPACE:
         case KeyEvent.VK_DELETE:
           doc.remove(el.getStartOffset(), el_range);
           break;
         case KeyEvent.VK_LEFT:
         case KeyEvent.VK_KP_LEFT:
           editorPane.setCaretPosition(pos - el_range);
           break;
         case KeyEvent.VK_RIGHT:
         case KeyEvent.VK_KP_RIGHT:
           editorPane.setCaretPosition(pos + (el_range));
           break;
       }
     } catch (BadLocationException ex) {
     }
   }
 }
Exemple #2
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  // Update the box that shows current actions.
  public void updateGUI(String message) {
    StyledDocument text = updateBox.getStyledDocument();
    SimpleAttributeSet currentWords = new SimpleAttributeSet();
    StyleConstants.setBold(currentWords, true);
    SimpleAttributeSet pastWords = new SimpleAttributeSet();
    StyleConstants.setBold(pastWords, false);

    try {
      text.setCharacterAttributes(0, text.getLength(), pastWords, true);
      text.insertString(0, message + "\n", currentWords);
    } catch (BadLocationException e) {
      // TODO Auto-generated catch block
      System.err.println("Bad location exception while styling updateBox.");
      e.printStackTrace();
    }

    updateBox.setCaretPosition(0);
  }
  protected void buildErrorPanel() {
    errorPanel = new JPanel();
    GroupLayout layout = new GroupLayout(errorPanel);
    layout.setAutoCreateGaps(true);
    layout.setAutoCreateContainerGaps(true);
    errorPanel.setLayout(layout);
    //    errorPanel.setBorder(BorderFactory.createMatteBorder(2, 0, 0, 0, Color.BLACK));
    errorMessage = new JTextPane();
    errorMessage.setEditable(false);
    errorMessage.setContentType("text/html");
    errorMessage.setText(
        "<html><body>Could not connect to the Processing server.<br>"
            + "Contributions cannot be installed or updated without an Internet connection.<br>"
            + "Please verify your network connection again, then try connecting again.</body></html>");
    errorMessage.setFont(Toolkit.getSansFont(14, Font.PLAIN));
    errorMessage.setMaximumSize(new Dimension(550, 50));
    errorMessage.setOpaque(false);

    StyledDocument doc = errorMessage.getStyledDocument();
    SimpleAttributeSet center = new SimpleAttributeSet();
    StyleConstants.setAlignment(center, StyleConstants.ALIGN_CENTER);
    doc.setParagraphAttributes(0, doc.getLength(), center, false);

    closeButton = new JButton("X");
    closeButton.setContentAreaFilled(false);
    closeButton.addActionListener(
        new ActionListener() {
          public void actionPerformed(ActionEvent e) {
            contribDialog.makeAndShowTab(false, false);
          }
        });
    tryAgainButton = new JButton("Try Again");
    tryAgainButton.setFont(Toolkit.getSansFont(14, Font.PLAIN));
    tryAgainButton.addActionListener(
        new ActionListener() {
          public void actionPerformed(ActionEvent e) {
            contribDialog.makeAndShowTab(false, true);
            contribDialog.downloadAndUpdateContributionListing(editor.getBase());
          }
        });
    layout.setHorizontalGroup(
        layout
            .createSequentialGroup()
            .addPreferredGap(
                LayoutStyle.ComponentPlacement.RELATED, GroupLayout.PREFERRED_SIZE, Short.MAX_VALUE)
            .addGroup(
                layout
                    .createParallelGroup(GroupLayout.Alignment.CENTER)
                    .addComponent(errorMessage)
                    .addComponent(
                        tryAgainButton,
                        StatusPanel.BUTTON_WIDTH,
                        StatusPanel.BUTTON_WIDTH,
                        StatusPanel.BUTTON_WIDTH))
            .addPreferredGap(
                LayoutStyle.ComponentPlacement.RELATED, GroupLayout.PREFERRED_SIZE, Short.MAX_VALUE)
            .addComponent(closeButton));
    layout.setVerticalGroup(
        layout
            .createSequentialGroup()
            .addGroup(
                layout.createParallelGroup().addComponent(errorMessage).addComponent(closeButton))
            .addPreferredGap(LayoutStyle.ComponentPlacement.UNRELATED)
            .addComponent(tryAgainButton));
    errorPanel.setBackground(Color.PINK);
    errorPanel.validate();
  }
  public static void main() {
    // Main
    frame = new JFrame("Java Playground");
    frame.setSize(640, 480);
    // Make sure the divider is properly resized
    frame.addComponentListener(
        new ComponentAdapter() {
          public void componentResized(ComponentEvent c) {
            splitter.setDividerLocation(.8);
          }
        });
    // Make sure the JVM is reset on close
    frame.addWindowListener(
        new WindowAdapter() {
          public void windowClosed(WindowEvent w) {
            new FrameAction().kill();
          }
        });

    // Setting up the keybinding
    // Ctrl+k or Cmd+k -> compile
    bind(KeyEvent.VK_K);

    // Ctrl+e or Cmd+e -> console
    bind(KeyEvent.VK_E);

    // Save, New file, Open file, Print.
    // Currently UNUSED until I figure out how normal java files and playground files will
    // interface.
    bind(KeyEvent.VK_S);
    bind(KeyEvent.VK_N);
    bind(KeyEvent.VK_O);
    bind(KeyEvent.VK_P);

    // Binds the keys to the action defined in the FrameAction class.
    frame.getRootPane().getActionMap().put("console", new FrameAction());

    // The main panel for typing code in.
    text = new JTextPane();
    textScroll = new JScrollPane(text);
    textScroll.setBorder(null);
    textScroll.setPreferredSize(new Dimension(640, 480));

    // Document with syntax highlighting. Currently unfinished.
    doc = text.getStyledDocument();
    doc.addDocumentListener(
        new DocumentListener() {
          public void changedUpdate(DocumentEvent d) {}

          public void insertUpdate(DocumentEvent d) {}

          public void removeUpdate(DocumentEvent d) {}
        });

    ((AbstractDocument) doc).setDocumentFilter(new NewLineFilter());

    // The output log; a combination compiler warning/error/runtime error/output log.
    outputText = new JTextPane();
    outputScroll = new JScrollPane(outputText);
    outputScroll.setBorder(null);

    // "Constant" for the error font
    error = new SimpleAttributeSet();
    error.addAttribute(StyleConstants.CharacterConstants.Italic, Boolean.TRUE);
    error.addAttribute(StyleConstants.Foreground, Color.RED);

    // "Constant" for the warning message font
    warning = new SimpleAttributeSet();
    warning.addAttribute(StyleConstants.CharacterConstants.Italic, Boolean.TRUE);
    warning.addAttribute(StyleConstants.Foreground, Color.PINK);

    // "Constant" for the debugger error font
    progErr = new SimpleAttributeSet();
    progErr.addAttribute(StyleConstants.Foreground, Color.BLUE);

    // Print streams to redirect System.out and System.err.
    out = new TextOutputStream(outputText, null);
    err = new TextOutputStream(outputText, error);
    System.setOut(new PrintStream(out));
    System.setErr(new PrintStream(err));

    // Sets up the output log
    outputText.setEditable(false);
    outputScroll.setVisible(true);

    // File input/output setup
    chooser = new JFileChooser();

    // Setting up miscellaneous stuff
    compiler = ToolProvider.getSystemJavaCompiler();
    JVMrunning = false;
    redirectErr = null;
    redirectOut = null;
    redirectIn = null;

    // Sets up the splitter pane and opens the program up
    splitter = new JSplitPane(JSplitPane.VERTICAL_SPLIT, textScroll, outputScroll);
    consoleDisplayed = false;
    splitter.remove(outputScroll); // Initially hides terminal until it is needed
    splitter.setOneTouchExpandable(true);
    frame.add(splitter);
    frame.setVisible(true);

    // Sets the divider to the proper one, for debugging
    // splitter.setDividerLocation(.8);
  }