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     switch (role) {
  65     case KCategorizedSortFilterProxyModel::CategoryDisplayRole:
  66         return displayRoleData(index);
  67     case KCategorizedSortFilterProxyModel::CategorySortRole:
  68         return sortRoleData(index);
  69     default:
  70         return KDirModel::data(index, role);
  71     }
  72 }
  73
  74 int DolphinModel::columnCount(const QModelIndex &parent) const
  75 {
  76     return KDirModel::columnCount(parent) + (ExtraColumnCount - ColumnCount);
  77 }
  78
  79 quint32 DolphinModel::ratingForIndex(const QModelIndex& index)
  80 {
  81 #ifdef HAVE_NEPOMUK
  82     quint32 rating = 0;
  83
  84     const DolphinModel* dolphinModel = static_cast<const DolphinModel*>(index.model());
  85     KFileItem item = dolphinModel->itemForIndex(index);
  86     if (!item.isNull()) {
  87         const Nepomuk::Resource resource(item.url().url(), Soprano::Vocabulary::Xesam::File());
  88         rating = resource.rating();
  89     }
  90     return rating;
  91 #else
  92     Q_UNUSED(index);
  93     return 0;
  94 #endif
  95 }
  96
  97 QString DolphinModel::tagsForIndex(const QModelIndex& index)
  98 {
  99 #ifdef HAVE_NEPOMUK
 100     QString tagsString;
 101
 102     const DolphinModel* dolphinModel = static_cast<const DolphinModel*>(index.model());
 103     KFileItem item = dolphinModel->itemForIndex(index);
 104     if (!item.isNull()) {
 105         const Nepomuk::Resource resource(item.url().url(), Soprano::Vocabulary::Xesam::File());
 106         const QList<Nepomuk::Tag> tags = resource.tags();
 107         QStringList stringList;
 108         foreach (const Nepomuk::Tag& tag, tags) {
 109             stringList.append(tag.label());
 110         }
 111         stringList.sort();
 112
 113         foreach (const QString& str, stringList) {
 114             tagsString += str;
 115             tagsString += ", ";
 116         }
 117
 118         if (!tagsString.isEmpty()) {
 119             tagsString.resize(tagsString.size() - 2);
 120         }
 121     }
 122
 123     return tagsString;
 124 #else
 125     Q_UNUSED(index);
 126     return QString();
 127 #endif
 128 }
 129
 130 QVariant DolphinModel::displayRoleData(const QModelIndex& index) const
 131 {
 132     QString retString;
 133
 134     if (!index.isValid()) {
 135         return retString;
 136     }
 137
 138     const KDirModel *dirModel = qobject_cast<const KDirModel*>(index.model());
 139     KFileItem item = dirModel->itemForIndex(index);
 140
 141     switch (index.column()) {
 142     case KDirModel::Name: {
 143         // KDirModel checks columns to know to which role are
 144         // we talking about
 145         QModelIndex theIndex = index.model()->index(index.row(),
 146             KDirModel::Name,
 147             index.parent());
 148
 149         if (!theIndex.isValid()) {
 150             return retString;
 151         }
 152         QVariant data = theIndex.model()->data(theIndex, Qt::DisplayRole);
 153         QString name = data.toString();
 154         if (!name.isEmpty()) {
 155             if (!item.isHidden() && name.at(0).isLetter())
 156                 retString = name.at(0).toUpper();
 157             else if (item.isHidden()) {
 158                 if (name.at(0) == '.') {
 159                     if (name.size() > 1 && name.at(1).isLetter()) {
 160                         retString = name.at(1).toUpper();
 161                     } else {
 162                         retString = i18nc("@title:group Name", others);
 163                     }
 164                 } else {
 165                     retString = name.at(0).toUpper();
 166                 }
 167             } else {
 168                 bool validCategory = false;
 169
 170                 const QString str(name.toUpper());
 171                 const QChar* currA = str.unicode();
 172                 while (!currA->isNull() && !validCategory) {
 173                     if (currA->isLetter()) {
 174                         validCategory = true;
 175                     } else if (currA->isDigit()) {
 176                         return i18nc("@title:group Name", others);
 177                     } else {
 178                         ++currA;
 179                     }
 180                 }
 181
 182                 if (!validCategory) {
 183                     retString = validCategory ? *currA : i18nc("@title:group Name", others);
 184                 } else {
 185                     retString = *currA;
 186                 }
 187             }
 188         }
 189         break;
 190     }
 191
 192     case KDirModel::Size: {
 193         const KIO::filesize_t fileSize = !item.isNull() ? item.size() : ~0U;
 194         if (!item.isNull() && item.isDir()) {
 195             retString = i18nc("@title:group Size", "Folders");
 196         } else if (fileSize < 5242880) {
 197             retString = i18nc("@title:group Size", "Small");
 198         } else if (fileSize < 10485760) {
 199             retString = i18nc("@title:group Size", "Medium");
 200         } else {
 201             retString = i18nc("@title:group Size", "Big");
 202         }
 203         break;
 204     }
 205
 206     case KDirModel::ModifiedTime: {
 207         KDateTime modifiedTime = item.time(KFileItem::ModificationTime);
 208         modifiedTime = modifiedTime.toLocalZone();
 209
 210         const QDate currentDate = KDateTime::currentLocalDateTime().date();
 211         const QDate modifiedDate = modifiedTime.date();
 212
 213         if ((currentDate.year() == modifiedDate.year()) && (currentDate.month() == modifiedDate.month())) {
 214             const int currentWeek = currentDate.weekNumber();
 215             const int modifiedWeek = modifiedDate.weekNumber();
 216             switch (currentWeek - modifiedWeek) {
 217             case 0:
 218                 switch (modifiedDate.daysTo(currentDate)) {
 219                 case 0:  retString = i18nc("@title:group Date", "Today"); break;
 220                 case 1:  retString = i18nc("@title:group Date", "Yesterday"); break;
 221                 default: retString = modifiedTime.toString(i18nc("@title:group The week day name: %A", "%A"));
 222                 }
 223                 break;
 224             case 1:
 225                 retString = i18nc("@title:group Date", "Last Week");
 226                 break;
 227             case 2:
 228                 retString = i18nc("@title:group Date", "Two Weeks Ago");
 229                 break;
 230             case 3:
 231                 retString = i18nc("@title:group Date", "Three Weeks Ago");
 232                 break;
 233             case 4:
 234                 retString = i18nc("@title:group Date", "Earlier this Month");
 235                 break;
 236             default:
 237                 Q_ASSERT(false);
 238             }
 239         } else {
 240             retString = modifiedTime.toString(i18nc("@title:group The month and year: %B is full month name in current locale, and %Y is full year number", "%B, %Y"));
 241         }
 242         break;
 243     }
 244
 245     case KDirModel::Permissions: {
 246         QString user;
 247         QString group;
 248         QString others;
 249
 250         QFileInfo info(item.url().pathOrUrl());
 251
 252         // set user string
 253         if (info.permission(QFile::ReadUser)) {
 254             user = i18nc("@item:intext Access permission, concatenated", "Read, ");
 255         }
 256         if (info.permission(QFile::WriteUser)) {
 257             user += i18nc("@item:intext Access permission, concatenated", "Write, ");
 258         }
 259         if (info.permission(QFile::ExeUser)) {
 260             user += i18nc("@item:intext Access permission, concatenated", "Execute, ");
 261         }
 262         user = user.isEmpty() ? i18nc("@item:intext Access permission, concatenated", "Forbidden") : user.mid(0, user.count() - 2);
 263
 264         // set group string
 265         if (info.permission(QFile::ReadGroup)) {
 266             group = i18nc("@item:intext Access permission, concatenated", "Read, ");
 267         }
 268         if (info.permission(QFile::WriteGroup)) {
 269             group += i18nc("@item:intext Access permission, concatenated", "Write, ");
 270         }
 271         if (info.permission(QFile::ExeGroup)) {
 272             group += i18nc("@item:intext Access permission, concatenated", "Execute, ");
 273         }
 274         group = group.isEmpty() ? i18nc("@item:intext Access permission, concatenated", "Forbidden") : group.mid(0, group.count() - 2);
 275
 276         // set permission string
 277         if (info.permission(QFile::ReadOther)) {
 278             others = i18nc("@item:intext Access permission, concatenated", "Read, ");
 279         }
 280         if (info.permission(QFile::WriteOther)) {
 281             others += i18nc("@item:intext Access permission, concatenated", "Write, ");
 282         }
 283         if (info.permission(QFile::ExeOther)) {
 284             others += i18nc("@item:intext Access permission, concatenated", "Execute, ");
 285         }
 286         others = others.isEmpty() ? i18nc("@item:intext Access permission, concatenated", "Forbidden") : others.mid(0, others.count() - 2);
 287
 288         retString = i18nc("@title:group Files and folders by permissions", "(User: %1) (Group: %2) (Others: %3)", user, group, others);
 289         break;
 290                                  }
 291
 292     case KDirModel::Owner:
 293         retString = item.user();
 294         break;
 295
 296     case KDirModel::Group:
 297         retString = item.group();
 298         break;
 299
 300     case KDirModel::Type:
 301         retString = item.mimeComment();
 302         break;
 303
 304 #ifdef HAVE_NEPOMUK
 305     case DolphinModel::Rating: {
 306         const quint32 rating = ratingForIndex(index);
 307         retString = QString::number(rating);
 308         break;
 309                                }
 310
 311     case DolphinModel::Tags: {
 312         retString = tagsForIndex(index);
 313         if (retString.isEmpty()) {
 314             retString = i18nc("@title:group Tags", "Not yet tagged");
 315         }
 316         break;
 317     }
 318 #endif
 319     }
 320
 321     return retString;
 322 }
 323
 324 QVariant DolphinModel::sortRoleData(const QModelIndex& index) const
 325 {
 326     QVariant retVariant;
 327
 328     if (!index.isValid()) {
 329         return retVariant;
 330     }
 331
 332     const KDirModel *dirModel = qobject_cast<const KDirModel*>(index.model());
 333     KFileItem item = dirModel->itemForIndex(index);
 334
 335     switch (index.column()) {
 336     case KDirModel::Name: {
 337         retVariant = data(index, KCategorizedSortFilterProxyModel::CategoryDisplayRole);
 338
 339         if (retVariant == i18nc("@title:group Name", others)) {
 340             retVariant = QString(QChar(QChar::ReplacementCharacter));
 341         }
 342         break;
 343     }
 344
 345     case KDirModel::Size: {
 346         const KIO::filesize_t fileSize = !item.isNull() ? item.size() : ~0U;
 347         if (item.isDir()) {
 348             retVariant = 0;
 349         } else if (fileSize < 5242880) {
 350             retVariant = 1;
 351         } else if (fileSize < 10485760) {
 352             retVariant = 2;
 353         } else {
 354             retVariant = 3;
 355         }
 356         break;
 357     }
 358
 359     case KDirModel::ModifiedTime: {
 360         KDateTime modifiedTime = item.time(KFileItem::ModificationTime);
 361         modifiedTime = modifiedTime.toLocalZone();
 362
 363         const QDate currentDate = KDateTime::currentLocalDateTime().date();
 364         const QDate modifiedDate = modifiedTime.date();
 365
 366         int weekOfMonth = 0;
 367         int dayOfWeek = 0;
 368         if ((currentDate.year() == modifiedDate.year()) && (currentDate.month() == modifiedDate.month())) {
 369             weekOfMonth = 4 - currentDate.weekNumber() + modifiedDate.weekNumber();
 370             Q_ASSERT(weekOfMonth >= 0);
 371             Q_ASSERT(weekOfMonth <= 4);
 372             if (weekOfMonth == 0) {
 373                 dayOfWeek = modifiedDate.dayOfWeek();
 374             }
 375         }
 376
 377         retVariant = modifiedDate.year() * 10000 + modifiedDate.month() * 100 +
 378                      weekOfMonth * 10 + dayOfWeek;
 379         break;
 380     }
 381
 382     case KDirModel::Permissions: {
 383         QFileInfo info(item.url().pathOrUrl());
 384
 385         retVariant = -KDirSortFilterProxyModel::pointsForPermissions(info);
 386         break;
 387     }
 388
 389     case KDirModel::Owner:
 390         retVariant = item.user();
 391         break;
 392
 393     case KDirModel::Group:
 394         retVariant = item.group();
 395         break;
 396
 397     case KDirModel::Type:
 398         if (item.isDir())
 399             retVariant = QString(); // when sorting we want folders to be placed first
 400         else
 401             retVariant = item.mimeComment();
 402         break;
 403
 404 #ifdef HAVE_NEPOMUK
 405     case DolphinModel::Rating: {
 406         retVariant = ratingForIndex(index);
 407         break;
 408     }
 409
 410     case DolphinModel::Tags: {
 411         retVariant = tagsForIndex(index).count();
 412         break;
 413     }
 414 #endif
 415
 416     default:
 417         break;
 418     }
 419
 420     return retVariant;
 421 }