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(data.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                     }
  96                     else
  97                     {
  98                         bool validCategory = false;
  99
 100                         const QString str(name.toUpper());
 101                         const QChar* currA = str.unicode();
 102                         while (!currA->isNull() && !validCategory) {
 103                             if (currA->isLetter())
 104                                 validCategory = true;
 105                             else if (currA->isDigit())
 106                                 return i18nc("@title:group", "Others");
 107                             else
 108                                 ++currA;
 109                         }
 110
 111                         if (!validCategory)
 112                             retString = i18nc("@title:group Name", "Others");
 113                         else
 114                             retString = *currA;
 115                     }
 116                 }
 117                 break;
 118             }
 119
 120             case KDirModel::Size: {
 121                 const int fileSize = !item.isNull() ? item.size() : -1;
 122                 if (!item.isNull() && item.isDir()) {
 123                     retString = i18nc("@title:group Size", "Folders");
 124                 } else if (fileSize < 5242880) {
 125                     retString = i18nc("@title:group Size", "Small");
 126                 } else if (fileSize < 10485760) {
 127                     retString = i18nc("@title:group Size", "Medium");
 128                 } else {
 129                     retString = i18nc("@title:group Size", "Big");
 130                 }
 131                 break;
 132             }
 133
 134             case KDirModel::ModifiedTime: {
 135                 KDateTime modifiedTime;
 136                 modifiedTime.setTime_t(item.time(KIO::UDSEntry::UDS_MODIFICATION_TIME));
 137                 modifiedTime = modifiedTime.toLocalZone();
 138
 139                 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"));
 140                 break;
 141             }
 142
 143             case KDirModel::Permissions: {
 144                 QString user;
 145                 QString group;
 146                 QString others;
 147
 148                 QFileInfo info(item.url().pathOrUrl());
 149
 150                 if (info.permission(QFile::ReadUser))
 151                     user = i18n("Read, ");
 152
 153                 if (info.permission(QFile::WriteUser))
 154                     user += i18n("Write, ");
 155
 156                 if (info.permission(QFile::ExeUser))
 157                     user += i18n("Execute, ");
 158
 159                 if (user.isEmpty())
 160                     user = i18n("Forbidden");
 161                 else
 162                     user = user.mid(0, user.count() - 2);
 163
 164                 if (info.permission(QFile::ReadGroup))
 165                     group = i18n("Read, ");
 166
 167                 if (info.permission(QFile::WriteGroup))
 168                     group += i18n("Write, ");
 169
 170                 if (info.permission(QFile::ExeGroup))
 171                     group += i18n("Execute, ");
 172
 173                 if (group.isEmpty())
 174                     group = i18n("Forbidden");
 175                 else
 176                     group = group.mid(0, group.count() - 2);
 177
 178                 if (info.permission(QFile::ReadOther))
 179                     others = i18n("Read, ");
 180
 181                 if (info.permission(QFile::WriteOther))
 182                     others += i18n("Write, ");
 183
 184                 if (info.permission(QFile::ExeOther))
 185                     others += i18n("Execute, ");
 186
 187                 if (others.isEmpty())
 188                     others = i18n("Forbidden");
 189                 else
 190                     others = others.mid(0, others.count() - 2);
 191
 192                 retString = i18nc("This shows files and folders permissions: user, group and others", "(User: %1) (Group: %2) (Others: %3)", user, group, others);
 193                 break;
 194             }
 195
 196             case KDirModel::Owner:
 197                 retString = item.user();
 198                 break;
 199
 200             case KDirModel::Group:
 201                 retString = item.group();
 202                 break;
 203
 204             case KDirModel::Type:
 205                 retString = item.mimeComment();
 206                 break;
 207
 208 #ifdef HAVE_NEPOMUK
 209             case DolphinModel::Rating: {
 210                 const quint32 rating = ratingForIndex(index);
 211
 212                 retString = QString::number(rating);
 213                 break;
 214             }
 215
 216             case DolphinModel::Tags: {
 217                 retString = tagsForIndex(index);
 218
 219                 if (retString.isEmpty())
 220                     retString = i18nc("@title:group Tags", "Not yet tagged");
 221
 222                 break;
 223             }
 224 #endif
 225         }
 226
 227         return retString;
 228     }
 229     else if (role == KCategorizedSortFilterProxyModel::CategorySortRole) {
 230         QVariant retVariant;
 231
 232         if (!index.isValid()) {
 233             return retVariant;
 234         }
 235
 236         const KDirModel *dirModel = qobject_cast<const KDirModel*>(index.model());
 237         KFileItem item = dirModel->itemForIndex(index);
 238
 239         switch (index.column()) {
 240         case KDirModel::Name: {
 241             retVariant = data(index, KCategorizedSortFilterProxyModel::CategoryDisplayRole);
 242             break;
 243         }
 244
 245         case KDirModel::Size: {
 246             const int fileSize = !item.isNull() ? item.size() : -1;
 247             if (item.isDir()) {
 248                 retVariant = 0;
 249             } else if (fileSize < 5242880) {
 250                 retVariant = 1;
 251             } else if (fileSize < 10485760) {
 252                 retVariant = 2;
 253             } else {
 254                 retVariant = 3;
 255             }
 256             break;
 257         }
 258
 259         case KDirModel::ModifiedTime: {
 260             KDateTime modifiedTime;
 261             modifiedTime.setTime_t(item.time(KIO::UDSEntry::UDS_MODIFICATION_TIME));
 262             modifiedTime = modifiedTime.toLocalZone();
 263
 264             retVariant = modifiedTime.date().year() * 100 + modifiedTime.date().month();
 265             break;
 266         }
 267
 268         case KDirModel::Permissions: {
 269             QFileInfo info(item.url().pathOrUrl());
 270
 271             retVariant = -KDirSortFilterProxyModel::pointsForPermissions(info);
 272             break;
 273         }
 274
 275         case KDirModel::Owner:
 276             retVariant = item.user();
 277             break;
 278
 279         case KDirModel::Group:
 280             retVariant = item.group();
 281             break;
 282
 283         case KDirModel::Type:
 284             if (item.isDir())
 285                 retVariant = QString(); // when sorting we want folders to be placed first
 286             else
 287                 retVariant = item.mimeComment();
 288             break;
 289
 290 #ifdef HAVE_NEPOMUK
 291         case DolphinModel::Rating: {
 292             retVariant = ratingForIndex(index);
 293             break;
 294         }
 295
 296         case DolphinModel::Tags: {
 297             retVariant = tagsForIndex(index).count();
 298             break;
 299         }
 300 #endif
 301
 302         default:
 303             break;
 304
 305         }
 306
 307         return retVariant;
 308     }
 309
 310     return KDirModel::data(index, role);
 311 }
 312
 313 int DolphinModel::columnCount(const QModelIndex &parent) const
 314 {
 315     return KDirModel::columnCount(parent) + (ExtraColumnCount - ColumnCount);
 316 }
 317
 318 quint32 DolphinModel::ratingForIndex(const QModelIndex& index)
 319 {
 320 #ifdef HAVE_NEPOMUK
 321     quint32 rating = 0;
 322
 323     const DolphinModel* dolphinModel = static_cast<const DolphinModel*>(index.model());
 324     KFileItem item = dolphinModel->itemForIndex(index);
 325     if (!item.isNull()) {
 326         const Nepomuk::Resource resource(item.url().url(), Nepomuk::NFO::File());
 327         rating = resource.rating();
 328     }
 329     return rating;
 330 #else
 331     Q_UNUSED(index);
 332     return 0;
 333 #endif
 334 }
 335
 336 QString DolphinModel::tagsForIndex(const QModelIndex& index)
 337 {
 338 #ifdef HAVE_NEPOMUK
 339     QString tagsString;
 340
 341     const DolphinModel* dolphinModel = static_cast<const DolphinModel*>(index.model());
 342     KFileItem item = dolphinModel->itemForIndex(index);
 343     if (!item.isNull()) {
 344         const Nepomuk::Resource resource(item.url().url(), Nepomuk::NFO::File());
 345         const QList<Nepomuk::Tag> tags = resource.tags();
 346         QStringList stringList;
 347         foreach (const Nepomuk::Tag& tag, tags) {
 348             stringList.append(tag.label());
 349         }
 350         stringList.sort();
 351
 352         foreach (const QString& str, stringList) {
 353             tagsString += str;
 354             tagsString += ", ";
 355         }
 356
 357         if (!tagsString.isEmpty()) {
 358             tagsString.resize(tagsString.size() - 2);
 359         }
 360     }
 361
 362     return tagsString;
 363 #else
 364     Q_UNUSED(index);
 365     return QString();
 366 #endif
 367 }