Create the new architecture for KCategorizedView. Now DolphinModel is created, inheriting KDirModel for returning valid data for the role of the category of

an item. DolphinSortFilterProxyModel implements now methods lessThanCategoryMethod and lessThanGeneralMethod from KCategorizedSortFilterProxyModel.

The only thing that needs to be adapted is the keyboard navigation on the KCategorizedView.

CCMAIL: [email protected]

svn path=/trunk/KDE/kdebase/apps/; revision=713319

1 files changed, 256 insertions, 0 deletions

diff --git a/src/dolphinmodel.cpp b/src/dolphinmodel.cpp
new file mode 100644
index 000000000..6ca2dd8e6
--- /dev/null
+++ b/src/dolphinmodel.cpp
@@ -0,0 +1,256 @@
+/**
+  * This file is part of the KDE project
+  * Copyright (C) 2007 Rafael Fernández López <[email protected]>
+  *
+  * This library is free software; you can redistribute it and/or
+  * modify it under the terms of the GNU Library General Public
+  * License as published by the Free Software Foundation; either
+  * version 2 of the License, or (at your option) any later version.
+  *
+  * This library is distributed in the hope that it will be useful,
+  * but WITHOUT ANY WARRANTY; without even the implied warranty of
+  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+  * Library General Public License for more details.
+  *
+  * You should have received a copy of the GNU Library General Public License
+  * along with this library; see the file COPYING.LIB.  If not, write to
+  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+  * Boston, MA 02110-1301, USA.
+  */
+
+#include "dolphinmodel.h"
+
+#include "dolphinsortfilterproxymodel.h"
+
+#include "kcategorizedview.h"
+
+#include <config-nepomuk.h>
+#ifdef HAVE_NEPOMUK
+#include <nepomuk/global.h>
+#include <nepomuk/resource.h>
+#include <nepomuk/tag.h>
+#endif
+
+#include <kdatetime.h>
+#include <kdirmodel.h>
+#include <kfileitem.h>
+#include <kiconloader.h>
+#include <klocale.h>
+#include <kurl.h>
+#include <kuser.h>
+#include <kmimetype.h>
+#include <kstandarddirs.h>
+#include <kpixmapeffect.h>
+
+#include <QList>
+#include <QSortFilterProxyModel>
+#include <QPainter>
+#include <QDir>
+
+DolphinModel::DolphinModel(QObject *parent)
+    : KDirModel(parent)
+{
+}
+
+DolphinModel::~DolphinModel()
+{
+}
+
+QVariant DolphinModel::data(const QModelIndex &index, int role) const
+{
+    if (role == KCategorizedSortFilterProxyModel::CategoryRole)
+    {
+        QString retString;
+
+        if (!index.isValid())
+        {
+            return retString;
+        }
+
+        const KDirModel *dirModel = qobject_cast<const KDirModel*>(index.model());
+        KFileItem item = dirModel->itemForIndex(index);
+
+        switch (index.column())
+        {
+            case KDirModel::Name:
+            {
+                // KDirModel checks columns to know to which role are
+                // we talking about
+                QModelIndex theIndex = index.model()->index(index.row(),
+                                                            KDirModel::Name,
+                                                            index.parent());
+
+                if (!theIndex.isValid()) {
+                    return retString;
+                }
+
+                QVariant data = theIndex.model()->data(theIndex, Qt::DisplayRole);
+                if (data.toString().size())
+                {
+                    if (!item.isHidden() && data.toString().at(0).isLetter())
+                        retString = data.toString().toUpper().at(0);
+                    else if (item.isHidden() && data.toString().at(0) == '.' &&
+                            data.toString().at(1).isLetter())
+                        retString = data.toString().toUpper().at(1);
+                    else if (item.isHidden() && data.toString().at(0) == '.' &&
+                            !data.toString().at(1).isLetter())
+                        retString = i18nc("@title:group Name", "Others");
+                    else if (item.isHidden() && data.toString().at(0) != '.')
+                        retString = data.toString().toUpper().at(0);
+                    else if (item.isHidden())
+                        retString = data.toString().toUpper().at(0);
+                    else
+                    {
+                        bool validCategory = false;
+
+                        const QString str(data.toString().toUpper());
+                        const QChar* currA = str.unicode();
+                        while (!currA->isNull() && !validCategory) {
+                            if (currA->isLetter())
+                                validCategory = true;
+                            else if (currA->isDigit())
+                                return i18nc("@title:group", "Others");
+                            else
+                                ++currA;
+                        }
+
+                        if (!validCategory)
+                            retString = i18nc("@title:group Name", "Others");
+                        else
+                            retString = *currA;
+                    }
+                }
+                break;
+            }
+
+            case KDirModel::Size: {
+                const int fileSize = !item.isNull() ? item.size() : -1;
+                if (!item.isNull() && item.isDir()) {
+                    retString = i18nc("@title:group Size", "Folders");
+                } else if (fileSize < 5242880) {
+                    retString = i18nc("@title:group Size", "Small");
+                } else if (fileSize < 10485760) {
+                    retString = i18nc("@title:group Size", "Medium");
+                } else {
+                    retString = i18nc("@title:group Size", "Big");
+                }
+                break;
+            }
+
+            case KDirModel::ModifiedTime:
+            {
+                KDateTime modifiedTime;
+                modifiedTime.setTime_t(item.time(KIO::UDSEntry::UDS_MODIFICATION_TIME));
+                modifiedTime = modifiedTime.toLocalZone();
+
+                if (modifiedTime.daysTo(KDateTime::currentLocalDateTime()) == 0)
+                    retString = i18nc("@title:group Date", "Today");
+                else if (modifiedTime.daysTo(KDateTime::currentLocalDateTime()) == 1)
+                    retString = i18nc("@title:group Date", "Yesterday");
+                else if (modifiedTime.daysTo(KDateTime::currentLocalDateTime()) < 7)
+                    retString = i18nc("@title:group Date", "Less than a week");
+                else if (modifiedTime.daysTo(KDateTime::currentLocalDateTime()) < 31)
+                    retString = i18nc("@title:group Date", "Less than a month");
+                else if (modifiedTime.daysTo(KDateTime::currentLocalDateTime()) < 365)
+                    retString = i18nc("@title:group Date", "Less than a year");
+                else
+                    retString = i18nc("@title:group Date", "More than a year");
+                break;
+            }
+
+            case KDirModel::Permissions:
+                retString = item.permissionsString();
+                break;
+
+            case KDirModel::Owner:
+                retString = item.user();
+                break;
+
+            case KDirModel::Group:
+                retString = item.group();
+                break;
+
+            case KDirModel::Type:
+                retString = item.mimeComment();
+                break;
+
+#ifdef HAVE_NEPOMUK
+            case DolphinModel::Rating: {
+                const quint32 rating = ratingForIndex(index);
+
+                retString = QString::number(rating);
+                break;
+            }
+
+            case DolphinModel::Tags: {
+                retString = tagsForIndex(index);
+
+                if (retString.isEmpty())
+                    retString = i18nc("@title:group Tags", "Not yet tagged");
+
+                break;
+            }
+#endif
+        }
+
+        return retString;
+    }
+
+    return KDirModel::data(index, role);
+}
+
+int DolphinModel::columnCount(const QModelIndex &parent) const
+{
+    return KDirModel::columnCount(parent) + (ExtraColumnCount - ColumnCount);
+}
+
+quint32 DolphinModel::ratingForIndex(const QModelIndex& index)
+{
+#ifdef HAVE_NEPOMUK
+    quint32 rating = 0;
+
+    const DolphinModel* dolphinModel = static_cast<const DolphinModel*>(index.model());
+    KFileItem item = dolphinModel->itemForIndex(index);
+    if (!item.isNull()) {
+        const Nepomuk::Resource resource(item.url().url(), Nepomuk::NFO::File());
+        rating = resource.rating();
+    }
+    return rating;
+#else
+    Q_UNUSED(index);
+    return 0;
+#endif
+}
+
+QString DolphinModel::tagsForIndex(const QModelIndex& index)
+{
+#ifdef HAVE_NEPOMUK
+    QString tagsString;
+
+    const DolphinModel* dolphinModel = static_cast<const DolphinModel*>(index.model());
+    KFileItem item = dolphinModel->itemForIndex(index);
+    if (!item.isNull()) {
+        const Nepomuk::Resource resource(item.url().url(), Nepomuk::NFO::File());
+        const QList<Nepomuk::Tag> tags = resource.tags();
+        QStringList stringList;
+        foreach (const Nepomuk::Tag& tag, tags) {
+            stringList.append(tag.label());
+        }
+        stringList.sort();
+
+        foreach (const QString& str, stringList) {
+            tagsString += str;
+            tagsString += ", ";
+        }
+
+        if (!tagsString.isEmpty()) {
+            tagsString.resize(tagsString.size() - 2);
+        }
+    }
+
+    return tagsString;
+#else
+    Q_UNUSED(index);
+    return QString();
+#endif
+}