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 <KFormat>
  25 #include <KLocalizedString>
  26
  27 #include <QMimeDatabase>
  28
  29 KFileItemListWidgetInformant::KFileItemListWidgetInformant() :
  30     KStandardItemListWidgetInformant()
  31 {
  32 }
  33
  34 KFileItemListWidgetInformant::~KFileItemListWidgetInformant()
  35 {
  36 }
  37
  38 QString KFileItemListWidgetInformant::itemText(int index, const KItemListView* view) const
  39 {
  40     Q_ASSERT(qobject_cast<KFileItemModel*>(view->model()));
  41     KFileItemModel* fileItemModel = static_cast<KFileItemModel*>(view->model());
  42
  43     const KFileItem item = fileItemModel->fileItem(index);
  44     return item.text();
  45 }
  46
  47 bool KFileItemListWidgetInformant::itemIsLink(int index, const KItemListView* view) const
  48 {
  49     Q_ASSERT(qobject_cast<KFileItemModel*>(view->model()));
  50     KFileItemModel* fileItemModel = static_cast<KFileItemModel*>(view->model());
  51
  52     const KFileItem item = fileItemModel->fileItem(index);
  53     return item.isLink();
  54 }
  55
  56 QString KFileItemListWidgetInformant::roleText(const QByteArray& role,
  57                                                const QHash<QByteArray, QVariant>& values) const
  58 {
  59     QString text;
  60     const QVariant roleValue = values.value(role);
  61
  62     // Implementation note: In case if more roles require a custom handling
  63     // use a hash + switch for a linear runtime.
  64
  65     if (role == "size") {
  66         if (values.value("isDir").toBool()) {
  67             // The item represents a directory. Show the number of sub directories
  68             // instead of the file size of the directory.
  69             if (!roleValue.isNull()) {
  70                 const int count = roleValue.toInt();
  71                 if (count < 0) {
  72                     text = i18nc("@item:intable", "Unknown");
  73                 } else {
  74                     text = i18ncp("@item:intable", "%1 item", "%1 items", count);
  75                 }
  76             }
  77         } else {
  78             const KIO::filesize_t size = roleValue.value<KIO::filesize_t>();
  79             text = KFormat().formatByteSize(size);
  80         }
  81     } else if (role == "modificationtime" || role == "creationtime" || role == "accesstime") {
  82             bool ok;
  83             const long long time = roleValue.toLongLong(&ok);
  84             if (ok && time != -1) {
  85                 return QLocale().toString(QDateTime::fromSecsSinceEpoch(time), QLocale::ShortFormat);
  86             }
  87     } else if (role == "deletiontime" || role == "imageDateTime") {
  88         const QDateTime dateTime = roleValue.toDateTime();
  89         text = QLocale().toString(dateTime, QLocale::ShortFormat);
  90     } else {
  91         text = KStandardItemListWidgetInformant::roleText(role, values);
  92     }
  93
  94     return text;
  95 }
  96
  97 QFont KFileItemListWidgetInformant::customizedFontForLinks(const QFont& baseFont) const
  98 {
  99     // The customized font should be italic if the file is a symbolic link.
 100     QFont font(baseFont);
 101     font.setItalic(true);
 102     return font;
 103 }
 104
 105
 106 KFileItemListWidget::KFileItemListWidget(KItemListWidgetInformant* informant, QGraphicsItem* parent) :
 107     KStandardItemListWidget(informant, parent)
 108 {
 109 }
 110
 111 KFileItemListWidget::~KFileItemListWidget()
 112 {
 113 }
 114
 115 KItemListWidgetInformant* KFileItemListWidget::createInformant()
 116 {
 117     return new KFileItemListWidgetInformant();
 118 }
 119
 120 bool KFileItemListWidget::isRoleRightAligned(const QByteArray& role) const
 121 {
 122     return role == "size";
 123 }
 124
 125 bool KFileItemListWidget::isHidden() const
 126 {
 127     return data().value("isHidden").toBool();
 128 }
 129
 130 QFont KFileItemListWidget::customizedFont(const QFont& baseFont) const
 131 {
 132     // The customized font should be italic if the file is a symbolic link.
 133     QFont font(baseFont);
 134     font.setItalic(data().value("isLink").toBool());
 135     return font;
 136 }
 137
 138 int KFileItemListWidget::selectionLength(const QString& text) const
 139 {
 140     // Select the text without MIME-type extension
 141     int selectionLength = text.length();
 142
 143     // If item is a directory, use the whole text length for
 144     // selection (ignore all points)
 145     if(data().value("isDir").toBool()) {
 146         return selectionLength;
 147     }
 148
 149     QMimeDatabase db;
 150     const QString extension = db.suffixForFileName(text);
 151     if (extension.isEmpty()) {
 152         // For an unknown extension just exclude the extension after
 153         // the last point. This does not work for multiple extensions like
 154         // *.tar.gz but usually this is anyhow a known extension.
 155         selectionLength = text.lastIndexOf(QLatin1Char('.'));
 156
 157         // If no point could be found, use whole text length for selection.
 158         if (selectionLength < 1) {
 159             selectionLength = text.length();
 160         }
 161
 162     } else {
 163         selectionLength -= extension.length() + 1;
 164     }
 165
 166     return selectionLength;
 167 }
 168