public boolean rangeCanBeVisible(int startOffset, int endOffset) {
    assert startOffset >= 0;
    assert startOffset <= endOffset;
    assert endOffset <= myEditor.getDocument().getTextLength();
    if (myDisabled) return true;
    if (startOffset < myVisualLineStartOffset || startOffset > myVisualLineEndOffset) {
      myVisualLineStartOffset = EditorUtil.getNotFoldedLineStartOffset(myEditor, startOffset);
      myVisualLineEndOffset = EditorUtil.getNotFoldedLineEndOffset(myEditor, startOffset);
      int visualLine = myEditor.offsetToVisualLine(startOffset);
      int y = myEditor.visualLineToY(visualLine);
      myVisualLineClipStartOffset = myEditor.logicalPositionToOffset(myEditor.xyToLogicalPosition(new Point(myClipRectangle.x, y)));
      myVisualLineClipEndOffset = myEditor.logicalPositionToOffset(myEditor.xyToLogicalPosition(new Point(myClipRectangle.x +
                                                                                                          myClipRectangle.width, y)));
    }
    return endOffset > myVisualLineEndOffset || startOffset <= myVisualLineClipEndOffset && endOffset >= myVisualLineClipStartOffset;
  }
public boolean rangeCanBeVisible(int startOffset, int endOffset)