Java Code Examples for javax.swing.text.BadLocationException#offsetRequested()

private static void setDummyText(JTextPane textPane, MutableAttributeSet attr) {
  textPane.setText("12341234\n1234 567890 5555 66666 77777\n88 999999 ");
  try {
    StyledDocument doc = textPane.getStyledDocument();
    doc.insertString(doc.getLength(), "134500698\n", attr);
  } catch (BadLocationException ex) {
    // should never happen
    RuntimeException wrap = new StringIndexOutOfBoundsException(ex.offsetRequested());
    wrap.initCause(ex);
    throw wrap;
  }
  // StyledDocument doc = new DefaultStyledDocument();
  // MutableAttributeSet a = new SimpleAttributeSet();
  // StyleConstants.setLineSpacing(a, .5f);
  // doc.setParagraphAttributes(0, doc.getLength() - 1, a, false);
  // textPane.setStyledDocument(doc);
}
 

@Override protected void paintTrack(Graphics g, JComponent c, Rectangle trackBounds) {
  super.paintTrack(g, c, trackBounds);

  Rectangle rect = textArea.getBounds();
  double sy = trackBounds.getHeight() / rect.getHeight();
  AffineTransform at = AffineTransform.getScaleInstance(1d, sy);
  Highlighter highlighter = textArea.getHighlighter();
  g.setColor(Color.YELLOW);
  try {
    for (Highlighter.Highlight hh: highlighter.getHighlights()) {
      Rectangle r = textArea.modelToView(hh.getStartOffset());
      Rectangle s = at.createTransformedShape(r).getBounds();
      int h = 2; // Math.max(2, s.height - 2);
      g.fillRect(trackBounds.x, trackBounds.y + s.y, trackBounds.width, h);
    }
  } catch (BadLocationException ex) {
    // should never happen
    RuntimeException wrap = new StringIndexOutOfBoundsException(ex.offsetRequested());
    wrap.initCause(ex);
    throw wrap;
  }
}
 

@Override public Component getTreeCellRendererComponent(JTree tree, Object value, boolean selected, boolean expanded, boolean leaf, int row, boolean hasFocus) {
  String txt = Objects.toString(value, "");
  getHighlighter().removeAllHighlights();
  setText(txt);
  setBackground(selected ? BACKGROUND_SELECTION_COLOR : Color.WHITE);
  if (query != null && !query.isEmpty() && txt.startsWith(query)) {
    try {
      getHighlighter().addHighlight(0, query.length(), HIGHLIGHT);
    } catch (BadLocationException ex) {
      // should never happen
      RuntimeException wrap = new StringIndexOutOfBoundsException(ex.offsetRequested());
      wrap.initCause(ex);
      throw wrap;
    }
  }
  return this;
}
 

public static int getFirstLineCenterY(String text, AbstractButton c, Rectangle iconRect) {
  int y = 0;
  if (Objects.nonNull(text) && c.getVerticalTextPosition() == SwingConstants.TOP) {
    View v = (View) c.getClientProperty(BasicHTML.propertyKey);
    if (Objects.nonNull(v)) {
      try {
        Element e = v.getElement().getElement(0);
        Shape s = new Rectangle();
        Position.Bias b = Position.Bias.Forward;
        s = v.modelToView(e.getStartOffset(), b, e.getEndOffset(), b, s);
        // System.out.println("v.h: " + s.getBounds());
        y = Math.round(Math.abs(s.getBounds().height - iconRect.height) / 2f);
      } catch (BadLocationException ex) {
        // should never happen
        RuntimeException wrap = new StringIndexOutOfBoundsException(ex.offsetRequested());
        wrap.initCause(ex);
        throw wrap;
      }
    }
  }
  return y;
}
 

private void append(String str) {
  Document doc = jtp.getDocument();
  String text;
  if (doc.getLength() > LIMIT) {
    timerStop();
    startButton.setEnabled(false);
    text = "doc.getLength()>1000";
  } else {
    text = str;
  }
  try {
    doc.insertString(doc.getLength(), text + LS, null);
    jtp.setCaretPosition(doc.getLength());
  } catch (BadLocationException ex) {
    // should never happen
    RuntimeException wrap = new StringIndexOutOfBoundsException(ex.offsetRequested());
    wrap.initCause(ex);
    throw wrap;
  }
}
 

private void paintCustomParagraph(Graphics g, Shape a) {
  try {
    Shape paragraph = modelToView(getEndOffset(), a, Position.Bias.Backward);
    Rectangle r = Objects.nonNull(paragraph) ? paragraph.getBounds() : a.getBounds();
    int x = r.x;
    int y = r.y;
    int h = r.height;
    // paragraphMarkIcon.paintIcon(null, g, x, y);
    Graphics2D g2 = (Graphics2D) g.create();
    g2.setPaint(MARK_COLOR);
    g2.drawLine(x + 1, y + h / 2, x + 1, y + h - 4);
    g2.drawLine(x + 2, y + h / 2, x + 2, y + h - 5);
    g2.drawLine(x + 3, y + h - 6, x + 3, y + h - 6);
    g2.dispose();
  } catch (BadLocationException ex) {
    // should never happen
    RuntimeException wrap = new StringIndexOutOfBoundsException(ex.offsetRequested());
    wrap.initCause(ex);
    throw wrap;
  }
}
 

private void paintCustomParagraph(Graphics g, Shape a) {
  try {
    Shape paragraph = modelToView(getEndOffset(), a, Position.Bias.Backward);
    Rectangle r = Objects.nonNull(paragraph) ? paragraph.getBounds() : a.getBounds();
    int x = r.x;
    int y = r.y;
    int h = r.height;
    Color old = g.getColor();
    g.setColor(MARK_COLOR);
    g.drawLine(x + 1, y + h / 2, x + 1, y + h - 4);
    g.drawLine(x + 2, y + h / 2, x + 2, y + h - 5);
    g.drawLine(x + 3, y + h - 6, x + 3, y + h - 6);
    g.setColor(old);
  } catch (BadLocationException ex) {
    // should never happen
    RuntimeException wrap = new StringIndexOutOfBoundsException(ex.offsetRequested());
    wrap.initCause(ex);
    throw wrap;
  }
}
 

@Override public void setText(String str) {
  super.setText(str);
  FontMetrics fm = getFontMetrics(getFont());
  Document doc = getDocument();
  Element root = doc.getDefaultRootElement();
  int lineCount = root.getElementCount(); // = root.getElementIndex(doc.getLength());
  int maxWidth = 10;
  try {
    for (int i = 0; i < lineCount; i++) {
      Element e = root.getElement(i);
      int rangeStart = e.getStartOffset();
      int rangeEnd = e.getEndOffset();
      String line = doc.getText(rangeStart, rangeEnd - rangeStart);
      int width = fm.stringWidth(line);
      if (maxWidth < width) {
        maxWidth = width;
      }
    }
  } catch (BadLocationException ex) {
    // should never happen
    RuntimeException wrap = new StringIndexOutOfBoundsException(ex.offsetRequested());
    wrap.initCause(ex);
    throw wrap;
  }
  setRows(lineCount);
  setColumns(1 + maxWidth / getColumnWidth());
}
 

@Override public void paint(Graphics g, Shape allocation) {
  super.paint(g, allocation);
  try {
    Shape para = modelToView(getEndOffset(), allocation, Bias.Backward);
    Rectangle r = Objects.nonNull(para) ? para.getBounds() : allocation.getBounds();
    PARAGRAPH_MARK.paintIcon(null, g, r.x, r.y);
  } catch (BadLocationException ex) {
    // should never happen
    RuntimeException wrap = new StringIndexOutOfBoundsException(ex.offsetRequested());
    wrap.initCause(ex);
    throw wrap;
  }
}
 

protected void addHighlight(Element element, boolean isBlock) {
  Highlighter highlighter = editorPane.getHighlighter();
  int start = element.getStartOffset();
  int lf = isBlock ? 1 : 0;
  int end = element.getEndOffset() - lf; // lf???, setDrawsLayeredHighlights(false) bug???
  try {
    highlighter.addHighlight(start, end, HIGHLIGHT);
  } catch (BadLocationException ex) {
    // should never happen
    RuntimeException wrap = new StringIndexOutOfBoundsException(ex.offsetRequested());
    wrap.initCause(ex);
    throw wrap;
  }
}
 

protected void append(Message m) {
  StyledDocument doc = jtp.getStyledDocument();
  try {
    doc.insertString(doc.getLength(), m.text + "\n", doc.getStyle(m.type.toString()));
  } catch (BadLocationException ex) {
    // should never happen
    RuntimeException wrap = new StringIndexOutOfBoundsException(ex.offsetRequested());
    wrap.initCause(ex);
    throw wrap;
  }
}
 

public synchronized char charAt(int index) {
    try {
        doc.getText(index, 1, segment);
    } catch (BadLocationException e) {
        IndexOutOfBoundsException ioobe = new IndexOutOfBoundsException(e.getMessage()
            + " at offset=" + e.offsetRequested()); // NOI18N
        ioobe.initCause(e);
        throw ioobe;
    }
    char ch = segment.array[segment.offset];
    segment.array = null; // Allow GC of large char arrays
    return ch;
}
 

private static void removeLines(Document doc, Element root) {
  Element fl = root.getElement(0);
  try {
    doc.remove(0, fl.getEndOffset());
  } catch (BadLocationException ex) {
    // should never happen
    RuntimeException wrap = new StringIndexOutOfBoundsException(ex.offsetRequested());
    wrap.initCause(ex);
    throw wrap;
  }
}
 

public static void append(JTextComponent editor, String str) {
  try {
    Document doc = editor.getDocument();
    doc.insertString(editor.getCaretPosition(), str, null);
  } catch (BadLocationException ex) {
    // should never happen
    RuntimeException wrap = new StringIndexOutOfBoundsException(ex.offsetRequested());
    wrap.initCause(ex);
    throw wrap;
  }
}
 

private void append(String str, boolean flg) {
  String style = flg ? StyleContext.DEFAULT_STYLE : "error";
  StyledDocument doc = jtp.getStyledDocument();
  try {
    doc.insertString(doc.getLength(), str + "\n", doc.getStyle(style));
  } catch (BadLocationException ex) {
    // should never happen
    RuntimeException wrap = new StringIndexOutOfBoundsException(ex.offsetRequested());
    wrap.initCause(ex);
    throw wrap;
  }
}
 

@Override public void paint(Graphics g) {
  if (isVisible()) {
    try {
      JTextComponent component = getComponent();
      TextUI mapper = component.getUI();
      Rectangle r = mapper.modelToView(component, getDot());
      g.setColor(component.getCaretColor());
      int width = g.getFontMetrics().charWidth('w');
      // A patch for full width characters >>>>
      if (isOvertypeMode()) {
        int pos = getCaretPosition();
        if (pos < getDocument().getLength()) {
          if (getSelectionStart() == getSelectionEnd()) {
            String str = getText(pos, 1);
            width = g.getFontMetrics().stringWidth(str);
          } else {
            width = 0;
          }
        }
      } // <<<<
      int y = r.y + r.height - 2;
      g.drawLine(r.x, y, r.x + width - 2, y);
    } catch (BadLocationException ex) {
      // should never happen
      RuntimeException wrap = new StringIndexOutOfBoundsException(ex.offsetRequested());
      wrap.initCause(ex);
      throw wrap;
    }
  }
}
 

public void textProgress(boolean append) {
  if (append) {
    area.append("*");
  } else {
    try {
      Document doc = area.getDocument();
      doc.remove(doc.getLength() - 1, 1);
    } catch (BadLocationException ex) {
      // should never happen
      RuntimeException wrap = new StringIndexOutOfBoundsException(ex.offsetRequested());
      wrap.initCause(ex);
      throw wrap;
    }
  }
}
 

private MainPanel() {
  super(new GridLayout(2, 1));
  String str = "red green blue 111111111111111111111111111111111";

  JTextPane textPane = new JTextPane() {
    @Override public void scrollRectToVisible(Rectangle rect) {
      rect.grow(getInsets().right, 0);
      super.scrollRectToVisible(rect);
    }
  };

  // @see https://ateraimemo.com/Swing/NoWrapTextPane.html
  textPane.setEditorKit(new NoWrapEditorKit());

  AbstractDocument doc = new SimpleSyntaxDocument();
  textPane.setDocument(doc);
  try {
    doc.insertString(0, str, null);
  } catch (BadLocationException ex) {
    // should never happen
    RuntimeException wrap = new StringIndexOutOfBoundsException(ex.offsetRequested());
    wrap.initCause(ex);
    throw wrap;
  }
  String key = "Do-Nothing";
  InputMap im = textPane.getInputMap(JComponent.WHEN_FOCUSED);
  im.put(KeyStroke.getKeyStroke(KeyEvent.VK_ENTER, 0), key);
  im.put(KeyStroke.getKeyStroke(KeyEvent.VK_TAB, 0), key);
  textPane.getActionMap().put(key, new AbstractAction() {
    @Override public void actionPerformed(ActionEvent e) {
      // Do nothing
    }
  });

  // @see https://ateraimemo.com/Swing/FocusTraversalKeys.html
  int ftk = KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS;
  Set<AWTKeyStroke> forwardKeys = new HashSet<>(textPane.getFocusTraversalKeys(ftk));
  forwardKeys.add(KeyStroke.getKeyStroke(KeyEvent.VK_TAB, 0));
  forwardKeys.add(KeyStroke.getKeyStroke(KeyEvent.VK_TAB, InputEvent.SHIFT_DOWN_MASK));
  textPane.setFocusTraversalKeys(ftk, forwardKeys);

  // // @see https://tips4java.wordpress.com/2009/01/25/no-wrap-text-pane/
  // textPane.addCaretListener(new VisibleCaretListener());

  JScrollPane scrollPane = new JScrollPane(textPane) {
    @Override public void updateUI() {
      super.updateUI();
      setVerticalScrollBarPolicy(ScrollPaneConstants.VERTICAL_SCROLLBAR_NEVER);
      setHorizontalScrollBarPolicy(ScrollPaneConstants.HORIZONTAL_SCROLLBAR_NEVER);
      setBorder(BorderFactory.createLineBorder(Color.GRAY));
      setViewportBorder(BorderFactory.createEmptyBorder());
    }

    @Override public Dimension getMinimumSize() {
      return super.getPreferredSize();
    }
  };

  add(makeTitledPanel("JTextField", new JTextField(str)));
  add(makeTitledPanel("JTextPane+StyledDocument+JScrollPane", scrollPane));
  setBorder(BorderFactory.createEmptyBorder(10, 10, 10, 10));
  setPreferredSize(new Dimension(320, 240));
}
 

private static JEditorPane makeEditorPane(boolean editable) {
  JEditorPane editorPane = new JEditorPane();
  editorPane.setEditable(editable);
  editorPane.setContentType("text/html");
  editorPane.putClientProperty(JEditorPane.HONOR_DISPLAY_PROPERTIES, Boolean.TRUE);
  editorPane.setText(HTML_TEXT);
  editorPane.addHyperlinkListener(e -> {
    if (e.getEventType() == HyperlinkEvent.EventType.ACTIVATED) {
      JOptionPane.showMessageDialog(editorPane, "You click the link with the URL " + e.getURL());
    } else if (e.getEventType() == HyperlinkEvent.EventType.ENTERED) {
      tooltip = editorPane.getToolTipText();
      URL url = e.getURL();
      editorPane.setToolTipText(Objects.nonNull(url) ? url.toExternalForm() : null);
    } else if (e.getEventType() == HyperlinkEvent.EventType.EXITED) {
      editorPane.setToolTipText(tooltip);
    }
  });

  HTMLDocument doc = (HTMLDocument) editorPane.getDocument();
  Style s = doc.addStyle("button", null);
  StyleConstants.setAlignment(s, StyleConstants.ALIGN_CENTER);
  HyperlinkButton button = new HyperlinkButton(LINK);
  button.addActionListener(e -> {
    AbstractButton b = (AbstractButton) e.getSource();
    editorPane.setBackground(b.isSelected() ? Color.RED : Color.WHITE);
    JOptionPane.showMessageDialog(editorPane, "You click the link with the URL " + LINK);
  });
  button.setToolTipText("button: " + LINK);
  button.setOpaque(false);
  StyleConstants.setComponent(s, button);
  try {
    doc.insertString(doc.getLength(), "\n----\nJButton:\n", null);
    doc.insertString(doc.getLength(), LINK + "\n", doc.getStyle("button"));
    // doc.insertString(doc.getLength(), "\n", null);
  } catch (BadLocationException ex) {
    // should never happen
    RuntimeException wrap = new StringIndexOutOfBoundsException(ex.offsetRequested());
    wrap.initCause(ex);
    throw wrap;
  }
  return editorPane;
}
 

private MainPanel() {
  super(new BorderLayout());
  String[] columnNames = {"String", "Integer", "Boolean"};
  Object[][] data = {
    {"aaa", 12, true}, {"zzz", 6, false}, {"bbb", 22, true}, {"nnn", 9, false},
    {"ccc", 32, true}, {"ooo", 8, false}, {"ddd", 42, true}, {"ppp", 9, false},
    {"eee", 52, true}, {"qqq", 8, false}, {"fff", 62, true}, {"rrr", 7, false},
    {"ggg", 51, true}, {"sss", 6, false}, {"hhh", 41, true}, {"ttt", 5, false},
    {"iii", 51, true}, {"uuu", 4, false}, {"jjj", 61, true}, {"vvv", 3, false},
    {"kkk", 72, true}, {"www", 2, false}, {"lll", 82, true}, {"xxx", 1, false},
    {"mmm", 92, true}, {"yyy", 0, false}
  };
  DefaultTableModel model = new DefaultTableModel(data, columnNames) {
    @Override public Class<?> getColumnClass(int column) {
      return getValueAt(0, column).getClass();
    }
  };
  JTable table = new JTable(model);
  table.setAutoCreateRowSorter(true);

  JTextPane textPane = new JTextPane();
  textPane.setEditable(false);
  textPane.setMargin(new Insets(5, 10, 5, 5));

  JTextComponent c = new JTextArea(TEXT);
  c.setEditable(false);

  Document doc = textPane.getDocument();
  try {
    doc.insertString(doc.getLength(), TEXT, null);
    doc.insertString(doc.getLength(), TEXT, null);
    doc.insertString(doc.getLength(), TEXT, null);
    textPane.insertComponent(createChildScrollPane(c));
    doc.insertString(doc.getLength(), "\n", null);
    doc.insertString(doc.getLength(), TEXT, null);
    textPane.insertComponent(createChildScrollPane(table));
    doc.insertString(doc.getLength(), "\n", null);
    doc.insertString(doc.getLength(), TEXT, null);
    textPane.insertComponent(new JScrollPane(new JTree()));
    doc.insertString(doc.getLength(), "\n", null);
    doc.insertString(doc.getLength(), TEXT, null);
  } catch (BadLocationException ex) {
    // should never happen
    RuntimeException wrap = new StringIndexOutOfBoundsException(ex.offsetRequested());
    wrap.initCause(ex);
    throw wrap;
  }
  add(new JLayer<>(new JScrollPane(textPane), new WheelScrollLayerUI()));
  // add(new JScrollPane(textPane));
  setPreferredSize(new Dimension(320, 240));
}