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