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#ifndef TextPosition_h
#define TextPosition_h
/******************************************************************************
*
* Copyright (C) 2002 Hugo PEREIRA <mailto: hugo.pereira@free.fr>
*
* This is free software; you can redistribute it and/or modify it under the
* terms of the GNU General Public License as published by the Free Software
* Foundation; either version 2 of the License, or (at your option) any later
* version.
*
* This software is distributed in the hope that it will be useful, but WITHOUT
* Any WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*
* You should have received a copy of the GNU General Public License along with
* this program. If not, see <http://www.gnu.org/licenses/>.
*
*******************************************************************************/
#include "Counter.h"
#include <QTextStream>
#include <QTextDocument>
//* stores paragraph and index (in paragraph) into unique structure
class TextPosition final: private Base::Counter<TextPosition>
{
public:
//* default constructor
explicit TextPosition( int paragraph = 0, int index = 0 ):
Counter( "TextPosition" ),
paragraph_( paragraph ),
index_( index )
{}
//* construct from document and absolute index
explicit TextPosition( QTextDocument*, int index );
//* paragraph
int paragraph() const
{ return paragraph_; }
//* paragraph
int& paragraph()
{ return paragraph_; }
//* index
int index() const
{ return index_; }
//* index
int& index()
{ return index_; }
//* get absolute index for given document
int index( QTextDocument* ) const;
//* validity
bool isValid() const
{ return (paragraph() >= 0 && index() >= 0 ); }
private:
//* paragraph index
int paragraph_ = 0;
//* character index
int index_ = 0;
//* dump to stream
friend QTextStream& operator << ( QTextStream& out, const TextPosition& position )
{
out << "(" << position.paragraph() << "," << position.index() << ")";
return out;
}
};
//* lower than operater
inline bool operator < (const TextPosition& first, const TextPosition& second)
{
if( first.paragraph() != second.paragraph() ) return first.paragraph() < second.paragraph();
else return first.index() < second.index();
}
//* equal operator
inline bool operator == (const TextPosition& first, const TextPosition& second)
{ return (first.paragraph() == second.paragraph() && first.index() == second.index()); }
#endif
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