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 #include <Soprano/Vocabulary/Xesam>
  33 #endif
  34
  35 #include <kdatetime.h>
  36 #include <kdirmodel.h>
  37 #include <kfileitem.h>
  38 #include <kiconloader.h>
  39 #include <klocale.h>
  40 #include <kurl.h>
  41 #include <kuser.h>
  42 #include <kmimetype.h>
  43 #include <kstandarddirs.h>
  44
  45 #include <QList>
  46 #include <QSortFilterProxyModel>
  47 #include <QPainter>
  48 #include <QDir>
  49 #include <QFileInfo>
  50
  51 static const char *others = I18N_NOOP2("@title:group Name", "Others");
  52
  53 DolphinModel::DolphinModel(QObject *parent)
  54     : KDirModel(parent)
  55 {
  56 }
  57
  58 DolphinModel::~DolphinModel()
  59 {
  60 }
  61
  62 QVariant DolphinModel::data(const QModelIndex &index, int role) const
  63 {
  64     if (role == KCategorizedSortFilterProxyModel::CategoryDisplayRole) {
  65         QString retString;
  66
  67         if (!index.isValid()) {
  68             return retString;
  69         }
  70
  71         const KDirModel *dirModel = qobject_cast<const KDirModel*>(index.model());
  72         KFileItem item = dirModel->itemForIndex(index);
  73
  74         switch (index.column()) {
  75             case KDirModel::Name: {
  76                 // KDirModel checks columns to know to which role are
  77                 // we talking about
  78                 QModelIndex theIndex = index.model()->index(index.row(),
  79                                                             KDirModel::Name,
  80                                                             index.parent());
  81
  82                 if (!theIndex.isValid()) {
  83                     return retString;
  84                 }
  85                 QVariant data = theIndex.model()->data(theIndex, Qt::DisplayRole);
  86                 QString name = data.toString();
  87                 if (!name.isEmpty()) {
  88                     if (!item.isHidden() && name.at(0).isLetter())
  89                         retString = name.at(0).toUpper();
  90                     else if (item.isHidden()) {
  91                         if (name.at(0) == '.') {
  92                             if (name.size() > 1 && name.at(1).isLetter()) {
  93                                 retString = name.at(1).toUpper();
  94                             } else {
  95                                 retString = i18nc("@title:group Name", others);
  96                             }
  97                         } else {
  98                             retString = name.at(0).toUpper();
  99                         }
 100                     } else {
 101                         bool validCategory = false;
 102
 103                         const QString str(name.toUpper());
 104                         const QChar* currA = str.unicode();
 105                         while (!currA->isNull() && !validCategory) {
 106                             if (currA->isLetter()) {
 107                                 validCategory = true;
 108                             } else if (currA->isDigit()) {
 109                                 return i18nc("@title:group Name", others);
 110                             } else {
 111                                 ++currA;
 112                             }
 113                         }
 114
 115                         if (!validCategory) {
 116                             retString = validCategory ? *currA : i18nc("@title:group Name", others);
 117                         } else {
 118                             retString = *currA;
 119                         }
 120                     }
 121                 }
 122                 break;
 123             }
 124
 125             case KDirModel::Size: {
 126                 const int fileSize = !item.isNull() ? item.size() : -1;
 127                 if (!item.isNull() && item.isDir()) {
 128                     retString = i18nc("@title:group Size", "Folders");
 129                 } else if (fileSize < 5242880) {
 130                     retString = i18nc("@title:group Size", "Small");
 131                 } else if (fileSize < 10485760) {
 132                     retString = i18nc("@title:group Size", "Medium");
 133                 } else {
 134                     retString = i18nc("@title:group Size", "Big");
 135                 }
 136                 break;
 137             }
 138
 139             case KDirModel::ModifiedTime: {
 140                 KDateTime modifiedTime = item.time(KFileItem::ModificationTime);
 141                 modifiedTime = modifiedTime.toLocalZone();
 142
 143                 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"));
 144                 break;
 145             }
 146
 147             case KDirModel::Permissions: {
 148                 QString user;
 149                 QString group;
 150                 QString others;
 151
 152                 QFileInfo info(item.url().pathOrUrl());
 153
 154                 if (info.permission(QFile::ReadUser))
 155                     user = i18n("Read, ");
 156
 157                 if (info.permission(QFile::WriteUser))
 158                     user += i18n("Write, ");
 159
 160                 if (info.permission(QFile::ExeUser))
 161                     user += i18n("Execute, ");
 162
 163                 if (user.isEmpty())
 164                     user = i18n("Forbidden");
 165                 else
 166                     user = user.mid(0, user.count() - 2);
 167
 168                 if (info.permission(QFile::ReadGroup))
 169                     group = i18n("Read, ");
 170
 171                 if (info.permission(QFile::WriteGroup))
 172                     group += i18n("Write, ");
 173
 174                 if (info.permission(QFile::ExeGroup))
 175                     group += i18n("Execute, ");
 176
 177                 if (group.isEmpty())
 178                     group = i18n("Forbidden");
 179                 else
 180                     group = group.mid(0, group.count() - 2);
 181
 182                 if (info.permission(QFile::ReadOther))
 183                     others = i18n("Read, ");
 184
 185                 if (info.permission(QFile::WriteOther))
 186                     others += i18n("Write, ");
 187
 188                 if (info.permission(QFile::ExeOther))
 189                     others += i18n("Execute, ");
 190
 191                 if (others.isEmpty())
 192                     others = i18n("Forbidden");
 193                 else
 194                     others = others.mid(0, others.count() - 2);
 195
 196                 retString = i18nc("This shows files and folders permissions: user, group and others", "(User: %1) (Group: %2) (Others: %3)", user, group, others);
 197                 break;
 198             }
 199
 200             case KDirModel::Owner:
 201                 retString = item.user();
 202                 break;
 203
 204             case KDirModel::Group:
 205                 retString = item.group();
 206                 break;
 207
 208             case KDirModel::Type:
 209                 retString = item.mimeComment();
 210                 break;
 211
 212 #ifdef HAVE_NEPOMUK
 213             case DolphinModel::Rating: {
 214                 const quint32 rating = ratingForIndex(index);
 215
 216                 retString = QString::number(rating);
 217                 break;
 218             }
 219
 220             case DolphinModel::Tags: {
 221                 retString = tagsForIndex(index);
 222
 223                 if (retString.isEmpty()) {
 224                     retString = i18nc("@title:group Tags", "Not yet tagged");
 225                 }
 226                 break;
 227             }
 228 #endif
 229         }
 230
 231         return retString;
 232     }
 233     else if (role == KCategorizedSortFilterProxyModel::CategorySortRole) {
 234         QVariant retVariant;
 235
 236         if (!index.isValid()) {
 237             return retVariant;
 238         }
 239
 240         const KDirModel *dirModel = qobject_cast<const KDirModel*>(index.model());
 241         KFileItem item = dirModel->itemForIndex(index);
 242
 243         switch (index.column()) {
 244         case KDirModel::Name: {
 245             retVariant = data(index, KCategorizedSortFilterProxyModel::CategoryDisplayRole);
 246
 247             if (retVariant == i18nc("@title:group Name", others))
 248                 retVariant = QString(QChar(QChar::ReplacementCharacter));
 249
 250             break;
 251         }
 252
 253         case KDirModel::Size: {
 254             const int fileSize = !item.isNull() ? item.size() : -1;
 255             if (item.isDir()) {
 256                 retVariant = 0;
 257             } else if (fileSize < 5242880) {
 258                 retVariant = 1;
 259             } else if (fileSize < 10485760) {
 260                 retVariant = 2;
 261             } else {
 262                 retVariant = 3;
 263             }
 264             break;
 265         }
 266
 267         case KDirModel::ModifiedTime: {
 268             KDateTime modifiedTime = item.time(KFileItem::ModificationTime);
 269             modifiedTime = modifiedTime.toLocalZone();
 270
 271             retVariant = -(modifiedTime.date().year() * 100 + modifiedTime.date().month());
 272             break;
 273         }
 274
 275         case KDirModel::Permissions: {
 276             QFileInfo info(item.url().pathOrUrl());
 277
 278             retVariant = -KDirSortFilterProxyModel::pointsForPermissions(info);
 279             break;
 280         }
 281
 282         case KDirModel::Owner:
 283             retVariant = item.user();
 284             break;
 285
 286         case KDirModel::Group:
 287             retVariant = item.group();
 288             break;
 289
 290         case KDirModel::Type:
 291             if (item.isDir())
 292                 retVariant = QString(); // when sorting we want folders to be placed first
 293             else
 294                 retVariant = item.mimeComment();
 295             break;
 296
 297 #ifdef HAVE_NEPOMUK
 298         case DolphinModel::Rating: {
 299             retVariant = ratingForIndex(index);
 300             break;
 301         }
 302
 303         case DolphinModel::Tags: {
 304             retVariant = tagsForIndex(index).count();
 305             break;
 306         }
 307 #endif
 308
 309         default:
 310             break;
 311
 312         }
 313
 314         return retVariant;
 315     }
 316
 317     return KDirModel::data(index, role);
 318 }
 319
 320 int DolphinModel::columnCount(const QModelIndex &parent) const
 321 {
 322     return KDirModel::columnCount(parent) + (ExtraColumnCount - ColumnCount);
 323 }
 324
 325 quint32 DolphinModel::ratingForIndex(const QModelIndex& index)
 326 {
 327 #ifdef HAVE_NEPOMUK
 328     quint32 rating = 0;
 329
 330     const DolphinModel* dolphinModel = static_cast<const DolphinModel*>(index.model());
 331     KFileItem item = dolphinModel->itemForIndex(index);
 332     if (!item.isNull()) {
 333         const Nepomuk::Resource resource(item.url().url(), Soprano::Vocabulary::Xesam::File());
 334         rating = resource.rating();
 335     }
 336     return rating;
 337 #else
 338     Q_UNUSED(index);
 339     return 0;
 340 #endif
 341 }
 342
 343 QString DolphinModel::tagsForIndex(const QModelIndex& index)
 344 {
 345 #ifdef HAVE_NEPOMUK
 346     QString tagsString;
 347
 348     const DolphinModel* dolphinModel = static_cast<const DolphinModel*>(index.model());
 349     KFileItem item = dolphinModel->itemForIndex(index);
 350     if (!item.isNull()) {
 351         const Nepomuk::Resource resource(item.url().url(), Soprano::Vocabulary::Xesam::File());
 352         const QList<Nepomuk::Tag> tags = resource.tags();
 353         QStringList stringList;
 354         foreach (const Nepomuk::Tag& tag, tags) {
 355             stringList.append(tag.label());
 356         }
 357         stringList.sort();
 358
 359         foreach (const QString& str, stringList) {
 360             tagsString += str;
 361             tagsString += ", ";
 362         }
 363
 364         if (!tagsString.isEmpty()) {
 365             tagsString.resize(tagsString.size() - 2);
 366         }
 367     }
 368
 369     return tagsString;
 370 #else
 371     Q_UNUSED(index);
 372     return QString();
 373 #endif
 374 }