trusttreemodel.h

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/*    -*-C++-*- -*-coding: utf-8-unix;-*-
    Classified Ads is Copyright (c) Antti Jarvinen 2013.

    This file is part of Classified Ads.

    Classified Ads is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
    License as published by the Free Software Foundation; either
    version 2.1 of the License, or (at your option) any later version.

    Classified Ads is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public
    License along with Classified Ads; if not, write to the Free Software
    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/

#ifndef CLASSIFIED_TRUSTTREEMODEL_H
#define CLASSIFIED_TRUSTTREEMODEL_H
#include "../mcontroller.h" // because enum from there is needed
#include "datamodelbase.h"
#include "../net/protocol.h" // for ProtocolItemType

class Hash ;
class MModelProtocolInterface ;
class Profile ;

class TrustTreeModel : public QObject {
    Q_OBJECT

public:
    TrustTreeModel(MController *aMController,
                   const MModelProtocolInterface &aModel) ;
    ~TrustTreeModel() ;

    void offerTrustList(const Hash& aTrustListOwnerProfile,
                        const QString& aOwnerProfileDisplayName,
                        const QList<Hash>& aList) ;

    bool isProfileTrusted(const Hash& aProfile,
                          QString *aDisplayNameOfTrustingProfile,
                          Hash* aFpOfTrustingProfile ) const ;

    void initModel(const QVariant& aPreviousSettings) ;

    QVariant trustTreeSettings() const ;
    void clear(void) ;
public slots:
    void contentReceived(const Hash& aHashOfContent,
                         const ProtocolItemType aTypeOfReceivdContent) ;
private: // methods
    void recalculateTrust() ;
    void setProfileTrustedInList(const Hash& aTrustedProfile,
                                 const Hash& aTrustingProfile,
                                 int aLevel) ;
signals:
    void error(MController::CAErrorSituation aError,
               const QString& aExplanation) ;

private: // member variables:
    MController& iController  ;
    const MModelProtocolInterface& iModel ;
    typedef struct TrustTreeItemStruct {
        Hash iTrustingOperator ; 
        QString iOperatorName ; 
        QList<Hash> iTrustList ; 
        signed char iLevel ; 
        bool iNeedsUpdate ; 
    } TrustTreeItem ;
    QMap<Hash, TrustTreeItem>* iTrustTree ;
    unsigned iLastUpdateTime ; 
} ;
#endif