/* * Copyright (C) 2004 Apple Computer, Inc. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef _PositionIterator_h_ #define _PositionIterator_h_ #include "dom_position.h" namespace DOM { class NodeImpl; class Position; class PositionIterator { public: PositionIterator() : m_current() {} PositionIterator(NodeImpl *node, long offset) : m_current(node, offset) {} PositionIterator(const Position &o) : m_current(o) {} Position current() const { return m_current; } Position previous() { return m_current = peekPrevious(); } Position next() { return m_current = peekNext(); } Position peekPrevious() const; Position peekNext() const; void setPosition(const Position &pos) { m_current = pos; } bool atStart() const; bool atEnd() const; bool isEmpty() const { return m_current.isNull(); } private: Position m_current; }; } // namespace DOM #endif // _PositionIterator_h_