src/kitemviews/kitemmodelbase.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2011 by Peter Penz <peter.penz19@gmail.com>             *
   3  *                                                                         *
   4  *   Based on the Itemviews NG project from Trolltech Labs:                *
   5  *   http://qt.gitorious.org/qt-labs/itemviews-ng                          *
   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 "kitemmodelbase.h"
  24
  25 KItemRange::KItemRange(int index, int count) :
  26     index(index),
  27     count(count)
  28 {
  29 }
  30
  31 bool KItemRange::operator == (const KItemRange& other) const
  32 {
  33     return index == other.index && count == other.count;
  34 }
  35
  36 KItemModelBase::KItemModelBase(QObject* parent) :
  37     QObject(parent),
  38     m_groupRole(),
  39     m_sortRole(),
  40     m_sortOrder(Qt::AscendingOrder)
  41 {
  42 }
  43
  44 KItemModelBase::KItemModelBase(const QByteArray& groupRole, const QByteArray& sortRole, QObject* parent) :
  45     QObject(parent),
  46     m_groupRole(groupRole),
  47     m_sortRole(sortRole),
  48     m_sortOrder(Qt::AscendingOrder)
  49 {
  50 }
  51
  52 KItemModelBase::~KItemModelBase()
  53 {
  54 }
  55
  56 bool KItemModelBase::setData(int index, const QHash<QByteArray, QVariant> &values)
  57 {
  58     Q_UNUSED(index);
  59     Q_UNUSED(values);
  60     return false;
  61 }
  62
  63 bool KItemModelBase::supportsGrouping() const
  64 {
  65     return false;
  66 }
  67
  68 void KItemModelBase::setGroupRole(const QByteArray& role)
  69 {
  70     if (supportsGrouping() && role != m_groupRole) {
  71         const QByteArray previous = m_groupRole;
  72         m_groupRole = role;
  73         onGroupRoleChanged(role, previous);
  74         emit groupRoleChanged(role, previous);
  75     }
  76 }
  77
  78 QByteArray KItemModelBase::groupRole() const
  79 {
  80     return m_groupRole;
  81 }
  82
  83 bool KItemModelBase::supportsSorting() const
  84 {
  85     return false;
  86 }
  87
  88 void KItemModelBase::setSortRole(const QByteArray& role)
  89 {
  90     if (supportsSorting() && role != m_sortRole) {
  91         const QByteArray previous = m_sortRole;
  92         m_sortRole = role;
  93         onSortRoleChanged(role, previous);
  94         emit sortRoleChanged(role, previous);
  95     }
  96 }
  97
  98 QByteArray KItemModelBase::sortRole() const
  99 {
 100     return m_sortRole;
 101 }
 102
 103 void KItemModelBase::setSortOrder(Qt::SortOrder order)
 104 {
 105     if (supportsSorting() && order != m_sortOrder) {
 106         const Qt::SortOrder previous = m_sortOrder;
 107         m_sortOrder = order;
 108         onSortOrderChanged(order, previous);
 109         emit sortOrderChanged(order, previous);
 110     }
 111 }
 112
 113 QString KItemModelBase::roleDescription(const QByteArray& role) const
 114 {
 115     return role;
 116 }
 117
 118 QMimeData* KItemModelBase::createMimeData(const QSet<int>& indexes) const
 119 {
 120     Q_UNUSED(indexes);
 121     return 0;
 122 }
 123
 124 int KItemModelBase::indexForKeyboardSearch(const QString& text, int startFromIndex) const
 125 {
 126     Q_UNUSED(text);
 127     Q_UNUSED(startFromIndex);
 128     return -1;
 129 }
 130
 131 bool KItemModelBase::supportsDropping(int index) const
 132 {
 133     Q_UNUSED(index);
 134     return false;
 135 }
 136
 137 void KItemModelBase::onGroupRoleChanged(const QByteArray& current, const QByteArray& previous)
 138 {
 139     Q_UNUSED(current);
 140     Q_UNUSED(previous);
 141 }
 142
 143 void KItemModelBase::onSortRoleChanged(const QByteArray& current, const QByteArray& previous)
 144 {
 145     Q_UNUSED(current);
 146     Q_UNUSED(previous);
 147 }
 148
 149 void KItemModelBase::onSortOrderChanged(Qt::SortOrder current, Qt::SortOrder previous)
 150 {
 151     Q_UNUSED(current);
 152     Q_UNUSED(previous);
 153 }
 154
 155 #include "kitemmodelbase.moc"