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111 lines
3.9 KiB
C++
111 lines
3.9 KiB
C++
/*
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* Copyright (C) 2004 Apple Computer, Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef __dom_position_h__
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#define __dom_position_h__
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#include <QDebug>
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namespace DOM {
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class ElementImpl;
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class NodeImpl;
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NodeImpl *rootNavigableElement(NodeImpl *node);
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bool inSameRootNavigableElement(NodeImpl *n1, NodeImpl *n2);
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void printEnclosingBlockTree(NodeImpl *node);
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void printRootEditableTree(NodeImpl *node);
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class Position
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{
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public:
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Position() : m_node(0), m_offset(0) {};
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Position(NodeImpl *node, long offset);
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Position(const Position &);
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~Position();
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NodeImpl *node() const { return m_node; }
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long offset() const { return m_offset; }
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ElementImpl *element() const;
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long renderedOffset() const;
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bool isEmpty() const { return m_node == 0; }
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bool notEmpty() const { return m_node != 0; }
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Position equivalentLeafPosition() const;
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Position previousRenderedEditablePosition() const;
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Position nextRenderedEditablePosition() const;
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Position previousCharacterPosition() const;
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Position nextCharacterPosition() const;
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Position previousWordPosition() const;
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Position nextWordPosition() const;
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Position previousLinePosition(int x) const;
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Position nextLinePosition(int x) const;
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Position equivalentUpstreamPosition() const;
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Position equivalentDownstreamPosition() const;
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Position equivalentRangeCompliantPosition() const;
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Position equivalentShallowPosition() const;
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bool atStartOfContainingEditableBlock() const;
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bool atStartOfRootEditableElement() const;
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bool inRenderedContent() const;
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bool inRenderedText() const;
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bool rendersOnSameLine(const Position &pos) const;
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bool rendersInDifferentPosition(const Position &pos) const;
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bool isFirstRenderedPositionOnLine() const;
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bool isLastRenderedPositionOnLine() const;
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bool isLastRenderedPositionInEditableBlock() const;
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bool inFirstEditableInRootEditableElement() const;
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bool inLastEditableInRootEditableElement() const;
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bool inFirstEditableInContainingEditableBlock() const;
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bool inLastEditableInContainingEditableBlock() const;
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Position &operator=(const Position &o);
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friend bool operator==(const Position &a, const Position &b);
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friend bool operator!=(const Position &a, const Position &b);
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private:
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NodeImpl *m_node;
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long m_offset;
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};
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inline bool operator==(const Position &a, const Position &b)
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{
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return a.node() == b.node() && a.offset() == b.offset();
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}
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inline bool operator!=(const Position &a, const Position &b)
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{
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return !(a == b);
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}
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QDebug operator<<(QDebug stream, const Position& position);
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} // namespace DOM
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#endif // __dom_position_h__
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