groupeditproxymodel.cpp

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/* Copyright 2008,2010,2012,2013,2014  Rolf Eike Beer <kde@opensource.sf-tec.de>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of
 * the License or (at your option) version 3 or any later version
 * accepted by the membership of KDE e.V. (or its successor approved
 * by the membership of KDE e.V.), which shall act as a proxy
 * defined in Section 14 of version 3 of the license.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
#include "groupeditproxymodel.h"
#include "model/kgpgitemnode.h"
#include "kgpgitemmodel.h"
#include "core/kgpgkey.h"

#include <KDebug>
#include <KLocale>
#include <QIcon>

using namespace KgpgCore;

GroupEditProxyModel::GroupEditProxyModel(QObject *parent, const bool invert, QList<KGpgNode *> *ids, const KgpgCore::KgpgKeyTrust mintrust)
    : QSortFilterProxyModel(parent),
    m_model(NULL),
    m_invert(invert),
    m_ids(ids),
    m_mintrust(mintrust)
{
}

void
GroupEditProxyModel::setKeyModel(KGpgItemModel *md)
{
    m_model = md;
    setSourceModel(md);
}

bool
GroupEditProxyModel::filterAcceptsRow(int source_row, const QModelIndex &source_parent) const
{
    QModelIndex idx = m_model->index(source_row, 0, source_parent);
    KGpgNode *l = m_model->nodeForIndex(idx);

    if (l->getType() & ~ITYPE_PAIR)
        return false;

    if (l->getTrust() < m_mintrust)
        return false;

    const KGpgKeyNode * const lk = l->toKeyNode();
    for (int i = 0; i < m_ids->count(); i++)
        if (lk->compareId(m_ids->at(i)->getId()))
            return !m_invert;

    return m_invert;
}

KGpgNode *
GroupEditProxyModel::nodeForIndex(const QModelIndex &index) const
{
    return m_model->nodeForIndex(mapToSource(index));
}

int
GroupEditProxyModel::columnCount(const QModelIndex &) const
{
    return 3;
}

int
GroupEditProxyModel::rowCount(const QModelIndex &parent) const
{
    if (parent.column() > 0)
        return 0;
    if (parent.isValid())
        return 0;
    if (m_model == NULL)
        return 0;
    return QSortFilterProxyModel::rowCount(parent);
}

QVariant
GroupEditProxyModel::data(const QModelIndex &index, int role) const
{
    if (!index.isValid() || (index.column() >= 3))
        return QVariant();

    KGpgNode *nd = m_model->nodeForIndex(mapToSource(index));

    switch (role) {
    case Qt::ToolTipRole:
    case Qt::DisplayRole:
        switch (index.column()) {
        case 0:
            if (role == Qt::ToolTipRole)
                return nd->getNameComment();
            else
                return nd->getName();
        case 1:
            if (role == Qt::ToolTipRole) {
                if (nd->toKeyNode()->getExpiration().isValid() && (nd->toKeyNode()->getExpiration() <= QDateTime::currentDateTime()))
                    return i18nc("Expired key", "Expired");
                break;
            } else {
                return nd->getEmail();
            }
        case 2:
            if (role == Qt::ToolTipRole)
                return nd->toKeyNode()->getBeautifiedFingerprint();
            else
                return nd->getId().right(8);
        default:
            break;
        }
    case Qt::DecorationRole:
        if (index.column() != 1)
            break;

        if (nd->toKeyNode()->getExpiration().isValid() && (nd->toKeyNode()->getExpiration() <= QDateTime::currentDateTime()))
            return QIcon::fromTheme(QLatin1String("dialog-warning"));
    }

    return QVariant();
}

bool
GroupEditProxyModel::hasChildren(const QModelIndex &parent) const
{
    if (m_model == NULL)
        return false;
    if (parent.column() > 0)
        return false;
    return !parent.isValid();
}

QVariant
GroupEditProxyModel::headerData(int section, Qt::Orientation orientation, int role) const
{
    if (role != Qt::DisplayRole)
        return QVariant();

    if (orientation != Qt::Horizontal)
        return QVariant();

    if (m_model == NULL)
        return QVariant();

    switch (section) {
    case 0:
        return m_model->headerData(KEYCOLUMN_NAME, orientation, role);
    case 1:
        return m_model->headerData(KEYCOLUMN_EMAIL, orientation, role);
    case 2:
        return m_model->headerData(KEYCOLUMN_ID, orientation, role);
    default:
        return QVariant();
    }
}