/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the QtDeclarative module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see http://www.qt.io/terms-conditions. For further
** information use the contact form at http://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** As a special exception, The Qt Company gives you certain additional
** rights. These rights are described in The Qt Company LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/

#ifndef TEXTWRITER_H
#define TEXTWRITER_H

#include <qdeclarativejsglobal_p.h>

#include <QtCore/QString>
#include <QtCore/QList>
#include <QtGui/QTextCursor>

QT_BEGIN_HEADER
QT_QML_BEGIN_NAMESPACE

namespace QDeclarativeJS {

class TextWriter
{
	QString *string;
	QTextCursor *cursor;

	struct Replace {
		int pos;
		int length;
		QString replacement;
	};

	QList<Replace> replaceList;

	struct Move {
		int pos;
		int length;
		int to;
	};

	QList<Move> moveList;

	bool hasOverlap(int pos, int length);
	bool hasMoveInto(int pos, int length);

	void doReplace(const Replace &replace);
	void doMove(const Move &move);

	void write_helper();

public:
	TextWriter();

	void replace(int pos, int length, const QString &replacement);
	void move(int pos, int length, int to);

	void write(QString *s);
	void write(QTextCursor *textCursor);

};

} // end of namespace QDeclarativeJS

QT_QML_END_NAMESPACE
QT_END_HEADER

#endif // TEXTWRITER_H
