#ifndef __dom_position_h__
#define __dom_position_h__
namespace DOM {
class ElementImpl;
class NodeImpl;
class Position
{
public:
Position() : m_node(0), m_offset(0) {};
Position(NodeImpl *node, long offset);
Position(const Position &);
~Position();
NodeImpl *node() const { return m_node; }
long offset() const { return m_offset; }
ElementImpl *element() const;
long renderedOffset() const;
bool isEmpty() const { return m_node == 0; }
bool notEmpty() const { return m_node != 0; }
Position equivalentLeafPosition() const;
Position previousRenderedEditablePosition() const;
Position nextRenderedEditablePosition() const;
Position previousCharacterPosition() const;
Position nextCharacterPosition() const;
Position previousWordPosition() const;
Position nextWordPosition() const;
Position previousLinePosition(int x) const;
Position nextLinePosition(int x) const;
Position equivalentUpstreamPosition() const;
Position equivalentDownstreamPosition() const;
Position equivalentRangeCompliantPosition() const;
Position equivalentShallowPosition() const;
bool atStartOfContainingEditableBlock() const;
bool atStartOfRootEditableElement() const;
bool inRenderedContent() const;
bool inRenderedText() const;
bool rendersOnSameLine(const Position &pos) const;
bool rendersInDifferentPosition(const Position &pos) const;
bool isFirstRenderedPositionOnLine() const;
bool isLastRenderedPositionOnLine() const;
bool isLastRenderedPositionInEditableBlock() const;
bool inFirstEditableInRootEditableElement() const;
bool inLastEditableInRootEditableElement() const;
bool inFirstEditableInContainingEditableBlock() const;
bool inLastEditableInContainingEditableBlock() const;
Position &operator=(const Position &o);
friend bool operator==(const Position &a, const Position &b);
friend bool operator!=(const Position &a, const Position &b);
void debugPosition(const char *msg="") const;
private:
NodeImpl *m_node;
long m_offset;
};
inline bool operator==(const Position &a, const Position &b)
{
return a.node() == b.node() && a.offset() == b.offset();
}
inline bool operator!=(const Position &a, const Position &b)
{
return !(a == b);
}
}
#endif // __dom_position_h__