src/kitemviews/kfileitemlistwidget.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2011 by Peter Penz <peter.penz19@gmail.com>             *
   3  *                                                                         *
   4  *   This program is free software; you can redistribute it and/or modify  *
   5  *   it under the terms of the GNU General Public License as published by  *
   6  *   the Free Software Foundation; either version 2 of the License, or     *
   7  *   (at your option) any later version.                                   *
   8  *                                                                         *
   9  *   This program is distributed in the hope that it will be useful,       *
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  12  *   GNU General Public License for more details.                          *
  13  *                                                                         *
  14  *   You should have received a copy of the GNU General Public License     *
  15  *   along with this program; if not, write to the                         *
  16  *   Free Software Foundation, Inc.,                                       *
  17  *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA            *
  18  ***************************************************************************/
  19
  20 #include "kfileitemlistwidget.h"
  21 #include "kfileitemmodel.h"
  22 #include "kitemlistview.h"
  23
  24 #include <kmimetype.h>
  25 #include <KDebug>
  26 #include <KGlobal>
  27 #include <KLocale>
  28 #include <KIO/MetaData>
  29 #include <QDateTime>
  30
  31 KFileItemListWidgetInformant::KFileItemListWidgetInformant() :
  32     KStandardItemListWidgetInformant()
  33 {
  34 }
  35
  36 KFileItemListWidgetInformant::~KFileItemListWidgetInformant()
  37 {
  38 }
  39
  40 QString KFileItemListWidgetInformant::itemText(int index, const KItemListView* view) const
  41 {
  42     Q_ASSERT(qobject_cast<KFileItemModel*>(view->model()));
  43     KFileItemModel* fileItemModel = static_cast<KFileItemModel*>(view->model());
  44
  45     const KFileItem item = fileItemModel->fileItem(index);
  46     return item.text();
  47 }
  48
  49 QString KFileItemListWidgetInformant::roleText(const QByteArray& role,
  50                                                const QHash<QByteArray, QVariant>& values) const
  51 {
  52     QString text;
  53     const QVariant roleValue = values.value(role);
  54
  55     // Implementation note: In case if more roles require a custom handling
  56     // use a hash + switch for a linear runtime.
  57
  58     if (role == "size") {
  59         if (values.value("isDir").toBool()) {
  60             // The item represents a directory. Show the number of sub directories
  61             // instead of the file size of the directory.
  62             if (!roleValue.isNull()) {
  63                 const int count = roleValue.toInt();
  64                 if (count < 0) {
  65                     text = i18nc("@item:intable", "Unknown");
  66                 } else {
  67                     text = i18ncp("@item:intable", "%1 item", "%1 items", count);
  68                 }
  69             }
  70         } else {
  71             const KIO::filesize_t size = roleValue.value<KIO::filesize_t>();
  72             text = KGlobal::locale()->formatByteSize(size);
  73         }
  74     } else if (role == "date") {
  75         const QDateTime dateTime = roleValue.toDateTime();
  76         text = KGlobal::locale()->formatDateTime(dateTime);
  77     } else {
  78         text = KStandardItemListWidgetInformant::roleText(role, values);
  79     }
  80
  81     return text;
  82 }
  83
  84 KFileItemListWidget::KFileItemListWidget(KItemListWidgetInformant* informant, QGraphicsItem* parent) :
  85     KStandardItemListWidget(informant, parent)
  86 {
  87 }
  88
  89 KFileItemListWidget::~KFileItemListWidget()
  90 {
  91 }
  92
  93 KItemListWidgetInformant* KFileItemListWidget::createInformant()
  94 {
  95     return new KFileItemListWidgetInformant();
  96 }
  97
  98 bool KFileItemListWidget::isRoleRightAligned(const QByteArray& role) const
  99 {
 100     return role == "size";
 101 }
 102
 103 bool KFileItemListWidget::isHidden() const
 104 {
 105     return data().value("text").toString().startsWith(QLatin1Char('.'));
 106 }
 107
 108 QFont KFileItemListWidget::customizedFont(const QFont& baseFont) const
 109 {
 110     // The customized font should be italic if the file is a symbolic link.
 111     QFont font(baseFont);
 112     font.setItalic(data().value("isLink").toBool());
 113     return font;
 114 }
 115
 116 int KFileItemListWidget::selectionLength(const QString& text) const
 117 {
 118     // Select the text without MIME-type extension
 119     int selectionLength = text.length();
 120
 121     // If item is a directory, use the whole text length for
 122     // selection (ignore all points)
 123     if(data().value("isDir").toBool()) {
 124         return selectionLength;
 125     }
 126
 127     const QString extension = KMimeType::extractKnownExtension(text);
 128     if (extension.isEmpty()) {
 129         // For an unknown extension just exclude the extension after
 130         // the last point. This does not work for multiple extensions like
 131         // *.tar.gz but usually this is anyhow a known extension.
 132         selectionLength = text.lastIndexOf(QLatin1Char('.'));
 133
 134         // If no point could be found, use whole text length for selection.
 135         if (selectionLength < 1) {
 136             selectionLength = text.length();
 137         }
 138
 139     } else {
 140         selectionLength -= extension.length() + 1;
 141     }
 142
 143     return selectionLength;
 144 }
 145
 146 #include "kfileitemlistwidget.moc"