keyfilter.h

/*
    keyfilter.h
 
    This file is part of libkleopatra, the KDE keymanagement library
    SPDX-FileCopyrightText: 2004 Klarälvdalens Datakonsult AB
 
    SPDX-License-Identifier: GPL-2.0-or-later
*/
 
#pragma once
 
#include "kleo_export.h"
 
#include <QFlags>
 
#include <algorithm>
#include <memory>
 
namespace GpgME
{
class Key;
class UserID;
}
 
class QFont;
class QColor;
class QString;
 
namespace Kleo
{
 
/**
   @short An abstract base class key filters
 
*/
class KLEO_EXPORT KeyFilter
{
public:
    virtual ~KeyFilter()
    {
    }
 
    enum MatchContext {
        // clang-format off
        NoMatchContext  = 0x0,
        Appearance      = 0x1,
        Filtering       = 0x2,
 
        AnyMatchContext = Appearance | Filtering
        // clang-format on
    };
    Q_DECLARE_FLAGS(MatchContexts, MatchContext)
 
    virtual bool matches(const GpgME::Key &key, MatchContexts ctx) const = 0;
    virtual bool matches(const GpgME::UserID &userID, MatchContexts ctx) const = 0;
 
    virtual unsigned int specificity() const = 0;
    virtual QString id() const = 0;
    virtual MatchContexts availableMatchContexts() const = 0;
 
    // not sure if we want these here, but for the time being, it's
    // the easiest way:
    virtual QColor fgColor() const = 0;
    virtual QColor bgColor() const = 0;
    virtual QString name() const = 0;
    virtual QString icon() const = 0;
 
    class FontDescription
    {
    public:
        FontDescription();
        FontDescription(const FontDescription &other);
        FontDescription &operator=(const FontDescription &other)
        {
            FontDescription copy(other);
            swap(copy);
            return *this;
        }
        ~FontDescription();
 
        static FontDescription create(bool bold, bool italic, bool strikeOut);
        static FontDescription create(const QFont &font, bool bold, bool italic, bool strikeOut);
 
        QFont font(const QFont &base) const;
 
        FontDescription resolve(const FontDescription &other) const;
 
        void swap(FontDescription &other)
        {
            std::swap(this->d, other.d);
        }
        struct Private;
 
    private:
        std::unique_ptr<Private> d;
    };
 
    virtual FontDescription fontDescription() const = 0;
};
 
Q_DECLARE_OPERATORS_FOR_FLAGS(KeyFilter::MatchContexts)
 
}
 
#include <QObject>
 
Q_DECLARE_METATYPE(Kleo::KeyFilter::MatchContexts)