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** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
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** This file is part of Qt Creator.
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****************************************************************************/

#ifndef IFINDSUPPORT_H
#define IFINDSUPPORT_H

#include "textfindconstants.h"

#include <QObject>
#include <QString>

namespace Core {

class CORE_EXPORT IFindSupport : public QObject
{
    Q_OBJECT

public:
    enum Result { Found, NotFound, NotYetFound };

    IFindSupport() : QObject(0) {}
    virtual ~IFindSupport() {}

    virtual bool supportsReplace() const = 0;
    virtual FindFlags supportedFindFlags() const = 0;
    virtual void resetIncrementalSearch() = 0;
    virtual void clearResults() = 0;
    virtual QString currentFindString() const = 0;
    virtual QString completedFindString() const = 0;

    virtual void highlightAll(const QString &txt, FindFlags findFlags);
    virtual Result findIncremental(const QString &txt, FindFlags findFlags) = 0;
    virtual Result findStep(const QString &txt, FindFlags findFlags) = 0;
    virtual void replace(const QString &before, const QString &after,
                         FindFlags findFlags);
    virtual bool replaceStep(const QString &before, const QString &after,
        FindFlags findFlags);
    virtual int replaceAll(const QString &before, const QString &after,
        FindFlags findFlags);

    virtual void defineFindScope(){}
    virtual void clearFindScope(){}

    static void showWrapIndicator(QWidget *parent);

signals:
    void changed();
};

inline void IFindSupport::highlightAll(const QString &, FindFlags) {}

} // namespace Core

#endif // IFINDSUPPORT_H
