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#ifndef IFINDFILTER_H
#define IFINDFILTER_H

#include "find_global.h"
#include "textfindconstants.h"

QT_BEGIN_NAMESPACE
class QWidget;
class QSettings;
class QKeySequence;
QT_END_NAMESPACE

namespace Find {

class FIND_EXPORT IFindFilter : public QObject
{
    Q_OBJECT
public:

    virtual ~IFindFilter() {}

    virtual QString id() const = 0;
    virtual QString displayName() const = 0;
    ///
    virtual bool isEnabled() const = 0;
    virtual bool canCancel() const = 0;
    virtual void cancel() = 0;
    virtual QKeySequence defaultShortcut() const;
    virtual bool isReplaceSupported() const { return false; }
    virtual FindFlags supportedFindFlags() const;

    virtual void findAll(const QString &txt, Find::FindFlags findFlags) = 0;
    virtual void replaceAll(const QString &txt, Find::FindFlags findFlags)
    { Q_UNUSED(txt) Q_UNUSED(findFlags) }

    virtual QWidget *createConfigWidget() { return 0; }
    virtual void writeSettings(QSettings *settings) { Q_UNUSED(settings) }
    virtual void readSettings(QSettings *settings) { Q_UNUSED(settings) }

signals:
    void changed();
};

} // namespace Find

#endif // IFINDFILTER_H