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
  22 #include <kmimetype.h>
  23 #include <KDebug>
  24 #include <KGlobal>
  25 #include <KLocale>
  26 #include <KIO/MetaData>
  27 #include <QDateTime>
  28
  29 KFileItemListWidgetInformant::KFileItemListWidgetInformant() :
  30     KStandardItemListWidgetInformant()
  31 {
  32 }
  33
  34 KFileItemListWidgetInformant::~KFileItemListWidgetInformant()
  35 {
  36 }
  37
  38 QString KFileItemListWidgetInformant::roleText(const QByteArray& role,
  39                                                const QHash<QByteArray, QVariant>& values) const
  40 {
  41     QString text;
  42     const QVariant roleValue = values.value(role);
  43
  44     // Implementation note: In case if more roles require a custom handling
  45     // use a hash + switch for a linear runtime.
  46
  47     if (role == "size") {
  48         if (values.value("isDir").toBool()) {
  49             // The item represents a directory. Show the number of sub directories
  50             // instead of the file size of the directory.
  51             if (!roleValue.isNull()) {
  52                 const int count = roleValue.toInt();
  53                 if (count < 0) {
  54                     text = i18nc("@item:intable", "Unknown");
  55                 } else {
  56                     text = i18ncp("@item:intable", "%1 item", "%1 items", count);
  57                 }
  58             }
  59         } else {
  60             const KIO::filesize_t size = roleValue.value<KIO::filesize_t>();
  61             text = KGlobal::locale()->formatByteSize(size);
  62         }
  63     } else if (role == "date") {
  64         const QDateTime dateTime = roleValue.toDateTime();
  65         text = KGlobal::locale()->formatDateTime(dateTime);
  66     } else {
  67         text = KStandardItemListWidgetInformant::roleText(role, values);
  68     }
  69
  70     return text;
  71 }
  72
  73 KFileItemListWidget::KFileItemListWidget(KItemListWidgetInformant* informant, QGraphicsItem* parent) :
  74     KStandardItemListWidget(informant, parent)
  75 {
  76 }
  77
  78 KFileItemListWidget::~KFileItemListWidget()
  79 {
  80 }
  81
  82 KItemListWidgetInformant* KFileItemListWidget::createInformant()
  83 {
  84     return new KFileItemListWidgetInformant();
  85 }
  86
  87 bool KFileItemListWidget::isRoleRightAligned(const QByteArray& role) const
  88 {
  89     return role == "size";
  90 }
  91
  92 bool KFileItemListWidget::isHidden() const
  93 {
  94     return data().value("text").toString().startsWith(QLatin1Char('.'));
  95 }
  96
  97 QFont KFileItemListWidget::customizedFont(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(data().value("isLink").toBool());
 102     return font;
 103 }
 104
 105 int KFileItemListWidget::selectionLength(const QString& text) const
 106 {
 107     // Select the text without MIME-type extension
 108     int selectionLength = text.length();
 109
 110     // If item is a directory, use the whole text length for
 111     // selection (ignore all points)
 112     if(data().value("isDir").toBool()) {
 113         return selectionLength;
 114     }
 115
 116     const QString extension = KMimeType::extractKnownExtension(text);
 117     if (extension.isEmpty()) {
 118         // For an unknown extension just exclude the extension after
 119         // the last point. This does not work for multiple extensions like
 120         // *.tar.gz but usually this is anyhow a known extension.
 121         selectionLength = text.lastIndexOf(QLatin1Char('.'));
 122
 123         // If no point could be found, use whole text length for selection.
 124         if (selectionLength < 1) {
 125             selectionLength = text.length();
 126         }
 127
 128     } else {
 129         selectionLength -= extension.length() + 1;
 130     }
 131
 132     return selectionLength;
 133 }
 134
 135 #include "kfileitemlistwidget.moc"