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