sclass JFastLogView_noWrap extends JComponent implements Scrollable {
  LS lines = syncList();
  
  public Dimension getPreferredScrollableViewportSize() { ret getPreferredSize(); }
    
  public int getScrollableUnitIncrement(Rectangle visibleRect, int orientation, int direction) { return 20; }

  public int getScrollableBlockIncrement(Rectangle visibleRect, int orientation, int direction) {
    ret (direction == SwingConstants.HORIZONTAL ? visibleRect.width : visibleRect.height)*5/6;
  }

  public bool getScrollableTracksViewportWidth() { false; }
  public bool getScrollableTracksViewportHeight() { false; }
    
  public void paint(Graphics g) {
    int w = getWidth(), h = getHeight();
    g.setColor(Color.white);
    g.fillRect(0, 0, w, h);
    g.setColor(Color.black);
    FontMetrics fm = getFontMetrics(getFont());
    int y = fm.getAscent(), fh = fm.getHeight();
    for i over lines: {
      S s = get(lines, i);
      g.drawString(s, 0, y);
      y += fh;
    }
  }
  
  public Dimension getPreferredSize() {
    FontMetrics fm = getFontMetrics(getFont());
    int fh = fm.getHeight();
    ret new Dimension(500 /* TODO */, fh*l(lines));
  }
  
  // API
  
  void setLines(Collection<S> lines) {
    this.lines = asSyncList(lines);
    _revalidate(this);
  }
}