private BeforeAfter<Integer> getEditorLines() {
    final Editor editor = ((DiffPanelImpl) getCurrentPanel()).getEditor1();
    Rectangle visibleArea = editor.getScrollingModel().getVisibleArea();
    final int offset = editor.getScrollingModel().getVerticalScrollOffset();

    int leftPixels = offset % editor.getLineHeight();

    final Point start = visibleArea.getLocation();
    final LogicalPosition startLp = editor.xyToLogicalPosition(start);
    final Point location = new Point(start.x + visibleArea.width, start.y + visibleArea.height);
    final LogicalPosition lp = editor.xyToLogicalPosition(location);

    int curStartLine =
        startLp.line == (editor.getDocument().getLineCount() - 1)
            ? startLp.line
            : (startLp.line + 1);
    int cutEndLine = lp.line == 0 ? 0 : lp.line - 1;

    boolean commonPartOk = leftPixels == 0 || startLp.line == lp.line;
    return new BeforeAfter<Integer>(
        commonPartOk && startLp.softWrapLinesOnCurrentLogicalLine == 0
            ? startLp.line
            : curStartLine,
        commonPartOk && lp.softWrapLinesOnCurrentLogicalLine == 0 ? lp.line : cutEndLine);
    /*if (leftPixels == 0 || startLp.line == lp.line) {
      return new BeforeAfter<Integer>(startLp.line, lp.line);
    } else {
      return new BeforeAfter<Integer>(curStartLine, cutEndLine);
    }*/
  }