/**********************************************************************
** Copyright (C) 2005-2008 Trolltech ASA.  All rights reserved.
**
** This file is part of Qt Designer.
**
** This file may be used under the terms of the GNU General
** Public License versions 2.0 or 3.0 as published by the Free
** Software Foundation and appearing in the files LICENSE.GPL2
** and LICENSE.GPL3 included in the packaging of this file.
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** publicly approved by Trolltech ASA (or its successors, if any)
** and the KDE Free Qt Foundation.
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** Public Licensing requirements will be met:
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**********************************************************************/

#ifndef PARENMATCHER_H
#define PARENMATCHER_H

#include <qstring.h>
#include <qvaluelist.h>

class QTextCursor;

struct Paren
{
    Paren() : type( Open ), chr( ' ' ), pos( -1 ) {}
    Paren( int t, const QChar &c, int p ) : type( (Type)t ), chr( c ), pos( p ) {}
    enum Type { Open, Closed };
    Type type;
    QChar chr;
    int pos;

    Q_DUMMY_COMPARISON_OPERATOR( Paren )
};

typedef QValueList<Paren> ParenList;

class ParenMatcher
{
public:
    enum Selection {
	Match = 1,
	Mismatch
    };

    ParenMatcher();

    virtual bool match( QTextCursor *c );

    void setEnabled( bool b ) { enabled = b; }

private:
    bool checkOpenParen( QTextCursor *c );
    bool checkClosedParen( QTextCursor *c );

    bool enabled;

};

#endif