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 == "accesstime" || role == "deletiontime" || role == "imageDateTime") {
  82         const QDateTime dateTime = roleValue.toDateTime();
  83         text = QLocale().toString(dateTime, QLocale::ShortFormat);
  84     } else {
  85         text = KStandardItemListWidgetInformant::roleText(role, values);
  86     }
  87
  88     return text;
  89 }
  90
  91 QFont KFileItemListWidgetInformant::customizedFontForLinks(const QFont& baseFont) const
  92 {
  93     // The customized font should be italic if the file is a symbolic link.
  94     QFont font(baseFont);
  95     font.setItalic(true);
  96     return font;
  97 }
  98
  99
 100 KFileItemListWidget::KFileItemListWidget(KItemListWidgetInformant* informant, QGraphicsItem* parent) :
 101     KStandardItemListWidget(informant, parent)
 102 {
 103 }
 104
 105 KFileItemListWidget::~KFileItemListWidget()
 106 {
 107 }
 108
 109 KItemListWidgetInformant* KFileItemListWidget::createInformant()
 110 {
 111     return new KFileItemListWidgetInformant();
 112 }
 113
 114 bool KFileItemListWidget::isRoleRightAligned(const QByteArray& role) const
 115 {
 116     return role == "size";
 117 }
 118
 119 bool KFileItemListWidget::isHidden() const
 120 {
 121     return data().value("isHidden").toBool();
 122 }
 123
 124 QFont KFileItemListWidget::customizedFont(const QFont& baseFont) const
 125 {
 126     // The customized font should be italic if the file is a symbolic link.
 127     QFont font(baseFont);
 128     font.setItalic(data().value("isLink").toBool());
 129     return font;
 130 }
 131
 132 int KFileItemListWidget::selectionLength(const QString& text) const
 133 {
 134     // Select the text without MIME-type extension
 135     int selectionLength = text.length();
 136
 137     // If item is a directory, use the whole text length for
 138     // selection (ignore all points)
 139     if(data().value("isDir").toBool()) {
 140         return selectionLength;
 141     }
 142
 143     QMimeDatabase db;
 144     const QString extension = db.suffixForFileName(text);
 145     if (extension.isEmpty()) {
 146         // For an unknown extension just exclude the extension after
 147         // the last point. This does not work for multiple extensions like
 148         // *.tar.gz but usually this is anyhow a known extension.
 149         selectionLength = text.lastIndexOf(QLatin1Char('.'));
 150
 151         // If no point could be found, use whole text length for selection.
 152         if (selectionLength < 1) {
 153             selectionLength = text.length();
 154         }
 155
 156     } else {
 157         selectionLength -= extension.length() + 1;
 158     }
 159
 160     return selectionLength;
 161 }
 162