src/dolphinmodel.cpp

   1 /**
   2   * This file is part of the KDE project
   3   * Copyright (C) 2007 Rafael Fernández López <ereslibre@kde.org>
   4   *
   5   * This library is free software; you can redistribute it and/or
   6   * modify it under the terms of the GNU Library General Public
   7   * License as published by the Free Software Foundation; either
   8   * version 2 of the License, or (at your option) any later version.
   9   *
  10   * This library is distributed in the hope that it will be useful,
  11   * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13   * Library General Public License for more details.
  14   *
  15   * You should have received a copy of the GNU Library General Public License
  16   * along with this library; see the file COPYING.LIB.  If not, write to
  17   * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  18   * Boston, MA 02110-1301, USA.
  19   */
  20
  21 #include "dolphinmodel.h"
  22
  23 #include "dolphinsortfilterproxymodel.h"
  24
  25 #include "kcategorizedview.h"
  26
  27 #include <config-nepomuk.h>
  28 #ifdef HAVE_NEPOMUK
  29 #include <nepomuk/global.h>
  30 #include <nepomuk/resource.h>
  31 #include <nepomuk/tag.h>
  32 #endif
  33
  34 #include <kdatetime.h>
  35 #include <kdirmodel.h>
  36 #include <kfileitem.h>
  37 #include <kiconloader.h>
  38 #include <klocale.h>
  39 #include <kurl.h>
  40 #include <kuser.h>
  41 #include <kmimetype.h>
  42 #include <kstandarddirs.h>
  43
  44 #include <QList>
  45 #include <QSortFilterProxyModel>
  46 #include <QPainter>
  47 #include <QDir>
  48 #include <QFileInfo>
  49
  50 DolphinModel::DolphinModel(QObject *parent)
  51     : KDirModel(parent)
  52 {
  53 }
  54
  55 DolphinModel::~DolphinModel()
  56 {
  57 }
  58
  59 QVariant DolphinModel::data(const QModelIndex &index, int role) const
  60 {
  61     if (role == KCategorizedSortFilterProxyModel::CategoryDisplayRole) {
  62         QString retString;
  63
  64         if (!index.isValid()) {
  65             return retString;
  66         }
  67
  68         const KDirModel *dirModel = qobject_cast<const KDirModel*>(index.model());
  69         KFileItem item = dirModel->itemForIndex(index);
  70
  71         switch (index.column()) {
  72             case KDirModel::Name: {
  73                 // KDirModel checks columns to know to which role are
  74                 // we talking about
  75                 QModelIndex theIndex = index.model()->index(index.row(),
  76                                                             KDirModel::Name,
  77                                                             index.parent());
  78
  79                 if (!theIndex.isValid()) {
  80                     return retString;
  81                 }
  82                 QVariant data = theIndex.model()->data(theIndex, Qt::DisplayRole);
  83                 QString name = data.toString();
  84                 if (!name.isEmpty()) {
  85                     if (!item.isHidden() && name.at(0).isLetter())
  86                         retString = name.at(0).toUpper();
  87                     else if (item.isHidden()) {
  88                         if(name.at(0) == '.') {
  89                             if(name.size() > 1 && name.at(1).isLetter())
  90                                 retString = name.at(1).toUpper();
  91                             else
  92                                 retString = i18nc("@title:group Name", "Others");
  93                         } else
  94                             retString = name.at(0).toUpper();
  95                     } else {
  96                         bool validCategory = false;
  97
  98                         const QString str(name.toUpper());
  99                         const QChar* currA = str.unicode();
 100                         while (!currA->isNull() && !validCategory) {
 101                             if (currA->isLetter())
 102                                 validCategory = true;
 103                             else if (currA->isDigit())
 104                                 return i18nc("@title:group", "Others");
 105                             else
 106                                 ++currA;
 107                         }
 108
 109                         if (!validCategory)
 110                             retString = i18nc("@title:group Name", "Others");
 111                         else
 112                             retString = *currA;
 113                     }
 114                 }
 115                 break;
 116             }
 117
 118             case KDirModel::Size: {
 119                 const int fileSize = !item.isNull() ? item.size() : -1;
 120                 if (!item.isNull() && item.isDir()) {
 121                     retString = i18nc("@title:group Size", "Folders");
 122                 } else if (fileSize < 5242880) {
 123                     retString = i18nc("@title:group Size", "Small");
 124                 } else if (fileSize < 10485760) {
 125                     retString = i18nc("@title:group Size", "Medium");
 126                 } else {
 127                     retString = i18nc("@title:group Size", "Big");
 128                 }
 129                 break;
 130             }
 131
 132             case KDirModel::ModifiedTime: {
 133                 KDateTime modifiedTime;
 134                 modifiedTime.setTime_t(item.time(KIO::UDSEntry::UDS_MODIFICATION_TIME));
 135                 modifiedTime = modifiedTime.toLocalZone();
 136
 137                 retString = modifiedTime.toString(i18nc("Prints out the month and year: %B is full month name in current locale, and %Y is full year number", "%B, %Y"));
 138                 break;
 139             }
 140
 141             case KDirModel::Permissions: {
 142                 QString user;
 143                 QString group;
 144                 QString others;
 145
 146                 QFileInfo info(item.url().pathOrUrl());
 147
 148                 if (info.permission(QFile::ReadUser))
 149                     user = i18n("Read, ");
 150
 151                 if (info.permission(QFile::WriteUser))
 152                     user += i18n("Write, ");
 153
 154                 if (info.permission(QFile::ExeUser))
 155                     user += i18n("Execute, ");
 156
 157                 if (user.isEmpty())
 158                     user = i18n("Forbidden");
 159                 else
 160                     user = user.mid(0, user.count() - 2);
 161
 162                 if (info.permission(QFile::ReadGroup))
 163                     group = i18n("Read, ");
 164
 165                 if (info.permission(QFile::WriteGroup))
 166                     group += i18n("Write, ");
 167
 168                 if (info.permission(QFile::ExeGroup))
 169                     group += i18n("Execute, ");
 170
 171                 if (group.isEmpty())
 172                     group = i18n("Forbidden");
 173                 else
 174                     group = group.mid(0, group.count() - 2);
 175
 176                 if (info.permission(QFile::ReadOther))
 177                     others = i18n("Read, ");
 178
 179                 if (info.permission(QFile::WriteOther))
 180                     others += i18n("Write, ");
 181
 182                 if (info.permission(QFile::ExeOther))
 183                     others += i18n("Execute, ");
 184
 185                 if (others.isEmpty())
 186                     others = i18n("Forbidden");
 187                 else
 188                     others = others.mid(0, others.count() - 2);
 189
 190                 retString = i18nc("This shows files and folders permissions: user, group and others", "(User: %1) (Group: %2) (Others: %3)", user, group, others);
 191                 break;
 192             }
 193
 194             case KDirModel::Owner:
 195                 retString = item.user();
 196                 break;
 197
 198             case KDirModel::Group:
 199                 retString = item.group();
 200                 break;
 201
 202             case KDirModel::Type:
 203                 retString = item.mimeComment();
 204                 break;
 205
 206 #ifdef HAVE_NEPOMUK
 207             case DolphinModel::Rating: {
 208                 const quint32 rating = ratingForIndex(index);
 209
 210                 retString = QString::number(rating);
 211                 break;
 212             }
 213
 214             case DolphinModel::Tags: {
 215                 retString = tagsForIndex(index);
 216
 217                 if (retString.isEmpty())
 218                     retString = i18nc("@title:group Tags", "Not yet tagged");
 219
 220                 break;
 221             }
 222 #endif
 223         }
 224
 225         return retString;
 226     }
 227     else if (role == KCategorizedSortFilterProxyModel::CategorySortRole) {
 228         QVariant retVariant;
 229
 230         if (!index.isValid()) {
 231             return retVariant;
 232         }
 233
 234         const KDirModel *dirModel = qobject_cast<const KDirModel*>(index.model());
 235         KFileItem item = dirModel->itemForIndex(index);
 236
 237         switch (index.column()) {
 238         case KDirModel::Name: {
 239             retVariant = data(index, KCategorizedSortFilterProxyModel::CategoryDisplayRole);
 240             break;
 241         }
 242
 243         case KDirModel::Size: {
 244             const int fileSize = !item.isNull() ? item.size() : -1;
 245             if (item.isDir()) {
 246                 retVariant = 0;
 247             } else if (fileSize < 5242880) {
 248                 retVariant = 1;
 249             } else if (fileSize < 10485760) {
 250                 retVariant = 2;
 251             } else {
 252                 retVariant = 3;
 253             }
 254             break;
 255         }
 256
 257         case KDirModel::ModifiedTime: {
 258             KDateTime modifiedTime;
 259             modifiedTime.setTime_t(item.time(KIO::UDSEntry::UDS_MODIFICATION_TIME));
 260             modifiedTime = modifiedTime.toLocalZone();
 261
 262             retVariant = -(modifiedTime.date().year() * 100 + modifiedTime.date().month());
 263             break;
 264         }
 265
 266         case KDirModel::Permissions: {
 267             QFileInfo info(item.url().pathOrUrl());
 268
 269             retVariant = -KDirSortFilterProxyModel::pointsForPermissions(info);
 270             break;
 271         }
 272
 273         case KDirModel::Owner:
 274             retVariant = item.user();
 275             break;
 276
 277         case KDirModel::Group:
 278             retVariant = item.group();
 279             break;
 280
 281         case KDirModel::Type:
 282             if (item.isDir())
 283                 retVariant = QString(); // when sorting we want folders to be placed first
 284             else
 285                 retVariant = item.mimeComment();
 286             break;
 287
 288 #ifdef HAVE_NEPOMUK
 289         case DolphinModel::Rating: {
 290             retVariant = ratingForIndex(index);
 291             break;
 292         }
 293
 294         case DolphinModel::Tags: {
 295             retVariant = tagsForIndex(index).count();
 296             break;
 297         }
 298 #endif
 299
 300         default:
 301             break;
 302
 303         }
 304
 305         return retVariant;
 306     }
 307
 308     return KDirModel::data(index, role);
 309 }
 310
 311 int DolphinModel::columnCount(const QModelIndex &parent) const
 312 {
 313     return KDirModel::columnCount(parent) + (ExtraColumnCount - ColumnCount);
 314 }
 315
 316 quint32 DolphinModel::ratingForIndex(const QModelIndex& index)
 317 {
 318 #ifdef HAVE_NEPOMUK
 319     quint32 rating = 0;
 320
 321     const DolphinModel* dolphinModel = static_cast<const DolphinModel*>(index.model());
 322     KFileItem item = dolphinModel->itemForIndex(index);
 323     if (!item.isNull()) {
 324         const Nepomuk::Resource resource(item.url().url(), Nepomuk::NFO::File());
 325         rating = resource.rating();
 326     }
 327     return rating;
 328 #else
 329     Q_UNUSED(index);
 330     return 0;
 331 #endif
 332 }
 333
 334 QString DolphinModel::tagsForIndex(const QModelIndex& index)
 335 {
 336 #ifdef HAVE_NEPOMUK
 337     QString tagsString;
 338
 339     const DolphinModel* dolphinModel = static_cast<const DolphinModel*>(index.model());
 340     KFileItem item = dolphinModel->itemForIndex(index);
 341     if (!item.isNull()) {
 342         const Nepomuk::Resource resource(item.url().url(), Nepomuk::NFO::File());
 343         const QList<Nepomuk::Tag> tags = resource.tags();
 344         QStringList stringList;
 345         foreach (const Nepomuk::Tag& tag, tags) {
 346             stringList.append(tag.label());
 347         }
 348         stringList.sort();
 349
 350         foreach (const QString& str, stringList) {
 351             tagsString += str;
 352             tagsString += ", ";
 353         }
 354
 355         if (!tagsString.isEmpty()) {
 356             tagsString.resize(tagsString.size() - 2);
 357         }
 358     }
 359
 360     return tagsString;
 361 #else
 362     Q_UNUSED(index);
 363     return QString();
 364 #endif
 365 }