/**************************************************************************
**
** This file is part of Qt Creator
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** Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
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** GNU Lesser General Public License Usage
**
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** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
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#ifndef TEXTBLOCKITERATOR_H
#define TEXTBLOCKITERATOR_H

#include "texteditor_global.h"

#include <QtGui/QTextBlock>

namespace TextEditor {

/* Iterator for the text blocks of a document. */
class TEXTEDITOR_EXPORT TextBlockIterator {
public:
    TextBlockIterator();
    TextBlockIterator(const QTextBlock &block);

    bool equals(const TextBlockIterator &o) const;

    QString operator*() const;
    TextBlockIterator &operator++();
    TextBlockIterator &operator--();
    TextBlockIterator operator++(int);
    TextBlockIterator operator--(int);

private:
    void read() const;

private:
    const QTextDocument *m_document;
    QTextBlock m_block;
    mutable QString m_text;
    mutable bool m_initialized;
};

inline bool operator==(const TextBlockIterator &i1, const TextBlockIterator &i2) { return i1.equals(i2); }
inline bool operator!=(const TextBlockIterator &i1, const TextBlockIterator &i2) { return !i1.equals(i2); }

} // namespace TextEditor

#endif // TEXTBLOCKITERATOR_H
