rssguard/src/core/messagesproxymodel.cpp

// This file is part of RSS Guard.
//
// Copyright (C) 2011-2014 by Martin Rotter <rotter.martinos@gmail.com>
//
// RSS Guard 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 3 of the License, or
// (at your option) any later version.
//
// RSS Guard 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 RSS Guard. If not, see <http://www.gnu.org/licenses/>.

#include "core/messagesproxymodel.h"

#include "core/messagesmodel.h"


MessagesProxyModel::MessagesProxyModel(QObject *parent)
  : QSortFilterProxyModel(parent) {
  m_sourceModel = new MessagesModel(this);

  setObjectName("MessagesProxyModel");
  setSortRole(Qt::EditRole);
  setSortCaseSensitivity(Qt::CaseInsensitive);
  setFilterCaseSensitivity(Qt::CaseInsensitive);
  setFilterKeyColumn(-1);
  setFilterRole(Qt::EditRole);
  setDynamicSortFilter(false);
  setSourceModel(m_sourceModel);
}

MessagesProxyModel::~MessagesProxyModel() {
  qDebug("Destroying MessagesProxyModel instance.");
}

bool MessagesProxyModel::lessThan(const QModelIndex &left, const QModelIndex &right) const {
  if (left.column() == MSG_DB_TITLE_INDEX && right.column() == MSG_DB_TITLE_INDEX) {
    return QString::localeAwareCompare(m_sourceModel->data(left).toString(),
                                       m_sourceModel->data(right).toString()) < 0;
  }
  else {
    return QSortFilterProxyModel::lessThan(left, right);
  }
}

QModelIndexList MessagesProxyModel::mapListFromSource(const QModelIndexList &indexes, bool deep) {
  QModelIndexList mapped_indexes;

  foreach (const QModelIndex &index, indexes) {
    if (deep) {
      // Construct new source index.
      mapped_indexes << mapFromSource(m_sourceModel->index(index.row(), index.column()));
    }
    else {
      mapped_indexes << mapFromSource(index);
    }
  }

  return mapped_indexes;
}

QModelIndexList MessagesProxyModel::mapListToSource(const QModelIndexList &indexes) {
  QModelIndexList source_indexes;

  foreach (const QModelIndex &index, indexes) {
    source_indexes << mapToSource(index);
  }

  return source_indexes;
}