• Skip to content
• Skip to link menu

KDE 4.2 API Reference

• KDE API Reference
• kdeutils

• Sitemap
• Contact Us

 

kgpg

kgpgitemmodel.cpp

Go to the documentation of this file.

/* Copyright 2008  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 "kgpgitemmodel.h"
#include "kgpgitemnode.h"
#include "kgpginterface.h"
#include "kgpgsettings.h"
#include "convert.h"
#include <KLocale>

KGpgItemModel::KGpgItemModel(QObject *parent)
    : QAbstractItemModel(parent)
{
    m_root = new KGpgRootNode(this);
    m_default = KGpgSettings::defaultKey();
}

KGpgItemModel::~KGpgItemModel()
{
    delete m_root;
}

QModelIndex
KGpgItemModel::index(int row, int column, const QModelIndex &parent) const
{
    if (hasIndex(row, column, parent)) {
        KGpgNode *parentNode = nodeForIndex(parent);
        KGpgNode *childNode = parentNode->getChild(row);
        return createIndex(row, column, childNode);
    }
    return QModelIndex();
}

QModelIndex
KGpgItemModel::parent(const QModelIndex &child) const
{
    if (!child.isValid())
        return QModelIndex();
    KGpgNode *childNode = nodeForIndex(child);
    KGpgNode *parentNode = childNode->m_parent;

    if (parentNode == m_root)
        return QModelIndex();

    Q_ASSERT(parentNode != NULL);
    int row = rowForNode(parentNode);
    int column = 0;
    
    return createIndex(row, column, parentNode);
}

int
KGpgItemModel::rowCount(const QModelIndex &parent) const
{
    if (parent.column() > 0)
        return 0;

    KGpgNode *parentNode = nodeForIndex(parent);

    return parentNode->getChildCount();
}

bool
KGpgItemModel::hasChildren(const QModelIndex &parent) const
{
    if (parent.column() > 0)
        return false;

    KGpgNode *parentNode = nodeForIndex(parent);

    return parentNode->hasChildren();
}

QVariant
KGpgItemModel::data(const QModelIndex &index, int role) const
{
    if (!index.isValid())
        return QVariant();

    KGpgNode *node = nodeForIndex(index);

    if (role == Qt::FontRole) {
        QFont f;
        f.setBold(isDefaultKey(node));
        return f;
    }

    switch (index.column()) {
    case KEYCOLUMN_NAME:
        switch (role) {
        case Qt::DisplayRole:
            return node->getName();
        case Qt::DecorationRole:
            if (node->getType() == ITYPE_UAT) {
                KGpgUatNode *nd = static_cast<KGpgUatNode *>(node);
                return nd->getPixmap();
            } else {
                return Convert::toPixmap(node->getType());
            }
        case Qt::ToolTipRole:
            return node->getComment();
        }
        break;
    case KEYCOLUMN_EMAIL:
        if (role == Qt::DisplayRole)
            return node->getEmail();
        break;
    case KEYCOLUMN_TRUST:
        {
        KgpgKeyTrust t = node->getTrust();

        switch (role) {
        case Qt::BackgroundColorRole:   return Convert::toColor(t);
        case Qt::AccessibleTextRole:    return Convert::toString(t);
        }
        break;
        }
    case KEYCOLUMN_EXPIR:
        if (role == Qt::DisplayRole)
            return node->getExpiration();
        break;
    case KEYCOLUMN_SIZE:
        switch (role) {
        case Qt::DisplayRole:
            return node->getSize();
        case Qt::ToolTipRole:
            switch (node->getType()) {
            case ITYPE_PAIR:
            case ITYPE_PUBLIC:
                return static_cast<KGpgKeyNode *>(node)->getSignCount();
            case ITYPE_UAT:
                return static_cast<KGpgUatNode *>(node)->getSignCount();
            case ITYPE_UID:
                return static_cast<KGpgUidNode *>(node)->getSignCount();
            case ITYPE_SUB:
                return static_cast<KGpgSubkeyNode *>(node)->getSignCount();
            }
        }
        break;
    case KEYCOLUMN_CREAT:
        if (role == Qt::DisplayRole)
            return node->getCreation();
        break;
    case KEYCOLUMN_ID:
        if (role == Qt::DisplayRole)
            return node->getId();
        break;
    }

    Q_ASSERT(1);
    return QVariant();
}

KGpgNode *
KGpgItemModel::nodeForIndex(const QModelIndex &index) const
{
    if (index.isValid())
        return static_cast<KGpgNode*>(index.internalPointer());
    return m_root;
}

int
KGpgItemModel::rowForNode(KGpgNode *node) const
{
    return node->m_parent->getChildIndex(node);
}

KGpgRootNode *
KGpgItemModel::getRootNode() const
{
    return m_root;
}

QString
KGpgItemModel::statusCountMessage() const
{
    int groupNb = m_root->groupChildren();
    QString kmsg = i18np("1 Key", "%1 Keys", m_root->getChildCount() - groupNb);

    if (groupNb == 0) {
        return kmsg;
    } else {
        QString gmsg = i18np("1 Group", "%1 Groups", groupNb);

        return kmsg + ", " + gmsg;
    }
}

KGpgGroupNode *
KGpgItemModel::addGroup(const QString &name, const KGpgKeyNodeList &keys)
{
    KGpgGroupNode *nd;

    emit layoutAboutToBeChanged();
    nd = new KGpgGroupNode(m_root, name, keys);
    fixPersistentIndexes();
    emit layoutChanged();

    return nd;
}

void
KGpgItemModel::delNode(const KGpgNode *node)
{
    emit layoutAboutToBeChanged();
    delete node;
    fixPersistentIndexes();
    emit layoutChanged();
}

void
KGpgItemModel::changeGroup(KGpgGroupNode *node, const QList<KGpgNode *> &keys)
{
    emit layoutAboutToBeChanged();
    for (int i = node->getChildCount() - 1; i >= 0; i--) {
        bool found = false;

        for (int j = 0; j < keys.count(); j++) {
            found = (node->getChild(i)->getId() == keys.at(j)->getId());
            if (found)
                break;
        }
        if (found)
            continue;
        delete node->getChild(i);
    }

    for (int i = 0; i < keys.count(); i++) {
        bool found = false;
        for (int j = 0; j < node->getChildCount(); j++) {
            found = (node->getChild(j)->getId() == keys.at(i)->getId());
            if (found)
                break;
        }
        if (found)
            continue;
        Q_ASSERT(!(keys.at(i)->getType() & ITYPE_GROUP));
        new KGpgGroupMemberNode(node, static_cast<KGpgKeyNode *>(keys.at(i)));
    }
    fixPersistentIndexes();
    emit layoutChanged();
}

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

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

    switch (section) {
    case KEYCOLUMN_NAME:    return QString(i18n("Name"));
    case KEYCOLUMN_EMAIL:   return QString(i18n("Email"));
    case KEYCOLUMN_TRUST:   return QString(i18n("Trust"));
    case KEYCOLUMN_SIZE:    return QString(i18n("Size"));
    case KEYCOLUMN_EXPIR:   return QString(i18n("Expiration"));
    case KEYCOLUMN_CREAT:   return QString(i18n("Creation"));
    case KEYCOLUMN_ID:  return QString(i18n("ID"));
    default:    return QVariant();
    }
}

void
KGpgItemModel::setDefaultKey(const QString &def)
{
    int defrow = m_root->findKeyRow(def);
    int odefrow = m_root->findKeyRow(m_default);
    if (defrow == odefrow)
        return;

    KGpgNode *n_def = m_root->getChild(defrow);

    int lastcol = columnCount(QModelIndex()) - 1;
    if (odefrow >= 0) {
        KGpgNode *nd = m_root->getChild(odefrow);
        emit dataChanged(createIndex(odefrow, 0, nd), createIndex(odefrow, lastcol, nd));
    }

    m_default = def;
    emit dataChanged(createIndex(defrow, 0, n_def), createIndex(defrow, lastcol, n_def));
}

QModelIndex
KGpgItemModel::nodeIndex(KGpgNode *node)
{
    KGpgNode *p = node->getParentKeyNode();

    for (int i = 0; i < p->getChildCount(); i++)
        if (p->getChild(i) == node)
            return createIndex(i, 0, node);

    Q_ASSERT(1);
    return QModelIndex();
}

void
KGpgItemModel::refreshKey(KGpgKeyNode *nd)
{
    KGpgKeyNodeList nodes;

    nodes.append(nd);

    refreshKeyIds(nodes);
}

void
KGpgItemModel::refreshKey(const QString &id)
{
    refreshKeyIds(QStringList(id));
}

void
KGpgItemModel::refreshKeys(KGpgKeyNodeList keys)
{
    refreshKeyIds(keys);
}

void
KGpgItemModel::refreshKeys(const QStringList &ids)
{
    refreshKeyIds(ids);
}

void
KGpgItemModel::refreshKeyIds(const QStringList &ids)
{
    emit layoutAboutToBeChanged();
    if (ids.isEmpty()) {
        for (int i = m_root->getChildCount() - 1; i >= 0; i--) {
            KGpgNode *nd = m_root->getChild(i);
            if (nd->getType() == ITYPE_GROUP)
                continue;
            delete nd;
        }
    } else {
        QStringList::ConstIterator it = ids.constBegin();
        const QStringList::ConstIterator itEnd = ids.constEnd();
    
        for (; it != itEnd; ++it) {
            KGpgKeyNode *nd = m_root->findKey(*it);
            delete nd;
        }
    }

    m_root->addKeys(ids);
    fixPersistentIndexes();
    emit layoutChanged();
}

void
KGpgItemModel::refreshKeyIds(KGpgKeyNodeList &nodes)
{
    QStringList ids;

    emit layoutAboutToBeChanged();
    m_root->refreshKeys(nodes);
    fixPersistentIndexes();
    emit layoutChanged();
}

void
KGpgItemModel::refreshGroups()
{
    emit layoutAboutToBeChanged();
    for (int i = m_root->getChildCount() - 1; i >= 0; i--) {
        KGpgNode *nd = m_root->getChild(i);
        if (nd->getType() == ITYPE_GROUP)
            delete nd;
    }

    m_root->addGroups();
    fixPersistentIndexes();
    emit layoutChanged();
}

bool
KGpgItemModel::isDefaultKey(const KGpgNode *node) const
{
    return !m_default.isEmpty() && (m_default == node->getId().right(m_default.length()));
}

void
KGpgItemModel::fixPersistentIndexes()
{
    if (persistentIndexList().isEmpty())
        return;

    QModelIndexList newidx;

    for (int i = 0; i < persistentIndexList().count(); i++) {
        QModelIndex idx = persistentIndexList().at(i);

        if (!idx.isValid())
            continue;

        KGpgNode *nd = nodeForIndex(idx);
        int j = rowForNode(nd);
        if (j == idx.row())
            continue;

// find out if this code is ever hit
kDebug(3125) << i << nd << idx.column() << "row" << idx.row() << "new row" << j;

        if (j >= 0)
            changePersistentIndex(idx, createIndex(j, idx.column(), nd));
        else
            changePersistentIndex(idx, QModelIndex());
    }
}

void
KGpgItemModel::invalidateIndexes(KGpgNode *nd)
{
    for (int i = 0; i < persistentIndexList().count(); i++) {
        QModelIndex idx = persistentIndexList().at(i);

        KGpgNode *n = nodeForIndex(idx);

        if (n != nd)
            continue;

        changePersistentIndex(idx, QModelIndex());
    }
}

void
KGpgItemModel::refreshTrust(const KgpgCore::KgpgKeyTrust &trust, const QColor &color)
{
    updateNodeTrustColor(m_root, trust, color);
}

void
KGpgItemModel::updateNodeTrustColor(KGpgExpandableNode *node, const KgpgCore::KgpgKeyTrust &trust, const QColor &color)
{
    for (int i = 0; i < node->getChildCount(); i++) {
        KGpgNode *child = node->getChild(i);

        if (child->getTrust() == trust)
            emit dataChanged(createIndex(i, KEYCOLUMN_TRUST, child), createIndex(i, KEYCOLUMN_TRUST, child));

        if (!child->hasChildren())
            continue;

        KGpgExpandableNode *echild = static_cast<KGpgExpandableNode *>(child);
        if (echild->wasExpanded())
            updateNodeTrustColor(echild, trust, color);
    }
}

kgpg

Skip menu "kgpg"

• Main Page
• Namespace List
• Class Hierarchy
• Alphabetical List
• Class List
• File List
• Namespace Members
• Class Members
• Related Pages

kdeutils

Skip menu "kdeutils"

• ark
• kcalc
• kcharselect
• kdessh
• kdf
• kfloppy
• kgpg
• ktimer
• kwallet
• okteta
• printer-applet
• superkaramba
• sweeper

Generated for kdeutils by doxygen 1.5.4
This website is maintained by Adriaan de Groot and Allen Winter.
KDE^® and the K Desktop Environment^® logo are registered trademarks of KDE e.V. | Legal