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