src/views/dolphinsortfilterproxymodel.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2006-2010 by Peter Penz <peter.penz@gmx.at>             *
   3  *   Copyright (C) 2006 by Dominic Battre <dominic@battre.de>              *
   4  *   Copyright (C) 2006 by Martin Pool <mbp@canonical.com>                 *
   5  *   Copyright (C) 2007 by Rafael Fernández López <ereslibre@kde.org>      *
   6  *                                                                         *
   7  *   This program is free software; you can redistribute it and/or modify  *
   8  *   it under the terms of the GNU General Public License as published by  *
   9  *   the Free Software Foundation; either version 2 of the License, or     *
  10  *   (at your option) any later version.                                   *
  11  *                                                                         *
  12  *   This program is distributed in the hope that it will be useful,       *
  13  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  14  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  15  *   GNU General Public License for more details.                          *
  16  *                                                                         *
  17  *   You should have received a copy of the GNU General Public License     *
  18  *   along with this program; if not, write to the                         *
  19  *   Free Software Foundation, Inc.,                                       *
  20  *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA            *
  21  ***************************************************************************/
  22
  23 #include "dolphinsortfilterproxymodel.h"
  24
  25 DolphinSortFilterProxyModel::DolphinSortFilterProxyModel(QObject* parent) :
  26     KDirSortFilterProxyModel(parent),
  27     m_sorting(DolphinView::SortByName),
  28     m_sortOrder(Qt::AscendingOrder)
  29 {
  30 }
  31
  32 DolphinSortFilterProxyModel::~DolphinSortFilterProxyModel()
  33 {
  34 }
  35
  36 void DolphinSortFilterProxyModel::setSorting(DolphinView::Sorting sorting)
  37 {
  38     m_sorting = sorting;
  39     KDirSortFilterProxyModel::sort(static_cast<int>(m_sorting), m_sortOrder);
  40 }
  41
  42 void DolphinSortFilterProxyModel::setSortOrder(Qt::SortOrder sortOrder)
  43 {
  44     m_sortOrder = sortOrder;
  45     KDirSortFilterProxyModel::sort(static_cast<int>(m_sorting), m_sortOrder);
  46 }
  47
  48 void DolphinSortFilterProxyModel::setSortFoldersFirst(bool foldersFirst)
  49 {
  50     if (foldersFirst != sortFoldersFirst()) {
  51         KDirSortFilterProxyModel::setSortFoldersFirst(foldersFirst);
  52
  53         // We need to make sure that the files and folders are really resorted.
  54         // Without the following two lines, QSortFilterProxyModel::sort(int column, Qt::SortOrder order)
  55         // would do nothing because neither the column nor the sort order have changed.
  56         // TODO: remove this hack if we find a better way to force the ProxyModel to re-sort the data.
  57         const Qt::SortOrder tmpSortOrder = (m_sortOrder == Qt::AscendingOrder ? Qt::DescendingOrder : Qt::AscendingOrder);
  58         KDirSortFilterProxyModel::sort(static_cast<int>(m_sorting), tmpSortOrder);
  59
  60         // Now comes the real sorting with the old column and sort order
  61         KDirSortFilterProxyModel::sort(static_cast<int>(m_sorting), m_sortOrder);
  62     }
  63 }
  64
  65 void DolphinSortFilterProxyModel::sort(int column, Qt::SortOrder sortOrder)
  66 {
  67     m_sorting = sortingForColumn(column);
  68     m_sortOrder = sortOrder;
  69
  70     emit sortingRoleChanged();
  71     KDirSortFilterProxyModel::sort(static_cast<int>(m_sorting), sortOrder);
  72 }
  73
  74 DolphinView::Sorting DolphinSortFilterProxyModel::sortingForColumn(int column)
  75 {
  76     Q_ASSERT(column >= 0);
  77     Q_ASSERT(column <= DolphinView::MaxSortingEnum);
  78     return static_cast<DolphinView::Sorting>(column);
  79 }
  80
  81 #include "dolphinsortfilterproxymodel.moc"