src/kitemviews/kfileitemlistwidget.cpp

   1 /*
   2  * SPDX-FileCopyrightText: 2011 Peter Penz <peter.penz19@gmail.com>
   3  *
   4  * SPDX-License-Identifier: GPL-2.0-or-later
   5  */
   6
   7 #include "kfileitemlistwidget.h"
   8 #include "kfileitemlistview.h"
   9 #include "kfileitemmodel.h"
  10 #include "kitemlistview.h"
  11
  12 #include "dolphin_detailsmodesettings.h"
  13
  14 #include <KFormat>
  15 #include <KLocalizedString>
  16
  17 #include <QGraphicsScene>
  18 #include <QGraphicsView>
  19 #include <QMimeDatabase>
  20
  21 KFileItemListWidgetInformant::KFileItemListWidgetInformant() :
  22     KStandardItemListWidgetInformant()
  23 {
  24 }
  25
  26 KFileItemListWidgetInformant::~KFileItemListWidgetInformant()
  27 {
  28 }
  29
  30 QString KFileItemListWidgetInformant::itemText(int index, const KItemListView* view) const
  31 {
  32     Q_ASSERT(qobject_cast<KFileItemModel*>(view->model()));
  33     KFileItemModel* fileItemModel = static_cast<KFileItemModel*>(view->model());
  34
  35     const KFileItem item = fileItemModel->fileItem(index);
  36     return item.text();
  37 }
  38
  39 bool KFileItemListWidgetInformant::itemIsLink(int index, const KItemListView* view) const
  40 {
  41     Q_ASSERT(qobject_cast<KFileItemModel*>(view->model()));
  42     KFileItemModel* fileItemModel = static_cast<KFileItemModel*>(view->model());
  43
  44     const KFileItem item = fileItemModel->fileItem(index);
  45     return item.isLink();
  46 }
  47
  48 QString KFileItemListWidgetInformant::roleText(const QByteArray& role,
  49                                                const QHash<QByteArray, QVariant>& values) const
  50 {
  51     QString text;
  52     const QVariant roleValue = values.value(role);
  53     QLocale local;
  54     KFormat formatter(local);
  55
  56     // Implementation note: In case if more roles require a custom handling
  57     // use a hash + switch for a linear runtime.
  58
  59     auto formatDate = [formatter, local](const QDateTime& time) {
  60         if (DetailsModeSettings::useShortRelativeDates()) {
  61             return formatter.formatRelativeDateTime(time, QLocale::ShortFormat);
  62         } else {
  63             return local.toString(time, QLocale::ShortFormat);
  64         }
  65     };
  66
  67     if (role == "size") {
  68         if (values.value("isDir").toBool()) {
  69             if (!roleValue.isNull() && roleValue != -1) {
  70                 // The item represents a directory.
  71                 if (DetailsModeSettings::directorySizeCount()) {
  72                     //  Show the number of sub directories instead of the file size of the directory.
  73                     const int count = values.value("count").toInt();
  74                     text = i18ncp("@item:intable", "%1 item", "%1 items", count);
  75                 } else {
  76                     // if we have directory size available
  77                     const KIO::filesize_t size = roleValue.value<KIO::filesize_t>();
  78                     text = formatter.formatByteSize(size);
  79                 }
  80             }
  81         } else {
  82             const KIO::filesize_t size = roleValue.value<KIO::filesize_t>();
  83             text = formatter.formatByteSize(size);
  84         }
  85     } else if (role == "modificationtime" || role == "creationtime" || role == "accesstime") {
  86             bool ok;
  87             const long long time = roleValue.toLongLong(&ok);
  88             if (ok && time != -1) {
  89                 const QDateTime dateTime = QDateTime::fromSecsSinceEpoch(time);
  90                 text = formatDate(dateTime);
  91             }
  92     } else if (role == "deletiontime" || role == "imageDateTime") {
  93         const QDateTime dateTime = roleValue.toDateTime();
  94         if (dateTime.isValid()) {
  95             text = formatDate(dateTime);
  96         }
  97     } else {
  98         text = KStandardItemListWidgetInformant::roleText(role, values);
  99     }
 100
 101     return text;
 102 }
 103
 104 QFont KFileItemListWidgetInformant::customizedFontForLinks(const QFont& baseFont) const
 105 {
 106     // The customized font should be italic if the file is a symbolic link.
 107     QFont font(baseFont);
 108     font.setItalic(true);
 109     return font;
 110 }
 111
 112 KFileItemListWidget::KFileItemListWidget(KItemListWidgetInformant* informant, QGraphicsItem* parent) :
 113     KStandardItemListWidget(informant, parent)
 114 {
 115 }
 116
 117 KFileItemListWidget::~KFileItemListWidget()
 118 {
 119 }
 120
 121 KItemListWidgetInformant* KFileItemListWidget::createInformant()
 122 {
 123     return new KFileItemListWidgetInformant();
 124 }
 125
 126 bool KFileItemListWidget::isRoleRightAligned(const QByteArray& role) const
 127 {
 128     return role == "size";
 129 }
 130
 131 bool KFileItemListWidget::isHidden() const
 132 {
 133     return data().value("isHidden").toBool();
 134 }
 135
 136 QFont KFileItemListWidget::customizedFont(const QFont& baseFont) const
 137 {
 138     // The customized font should be italic if the file is a symbolic link.
 139     QFont font(baseFont);
 140     font.setItalic(data().value("isLink").toBool());
 141     return font;
 142 }
 143
 144 int KFileItemListWidget::selectionLength(const QString& text) const
 145 {
 146     // Select the text without MIME-type extension
 147     int selectionLength = text.length();
 148
 149     // If item is a directory, use the whole text length for
 150     // selection (ignore all points)
 151     if(data().value("isDir").toBool()) {
 152         return selectionLength;
 153     }
 154
 155     QMimeDatabase db;
 156     const QString extension = db.suffixForFileName(text);
 157     if (extension.isEmpty()) {
 158         // For an unknown extension just exclude the extension after
 159         // the last point. This does not work for multiple extensions like
 160         // *.tar.gz but usually this is anyhow a known extension.
 161         selectionLength = text.lastIndexOf(QLatin1Char('.'));
 162
 163         // If no point could be found, use whole text length for selection.
 164         if (selectionLength < 1) {
 165             selectionLength = text.length();
 166         }
 167
 168     } else {
 169         selectionLength -= extension.length() + 1;
 170     }
 171
 172     return selectionLength;
 173 }
 174
 175 void KFileItemListWidget::hoverSequenceStarted()
 176 {
 177     KFileItemListView* view = listView();
 178
 179     if (!view) {
 180         return;
 181     }
 182
 183     const QUrl itemUrl = data().value("url").toUrl();
 184
 185     view->setHoverSequenceState(itemUrl, 0);
 186 }
 187
 188 void KFileItemListWidget::hoverSequenceIndexChanged(int sequenceIndex)
 189 {
 190     KFileItemListView* view = listView();
 191
 192     if (!view) {
 193         return;
 194     }
 195
 196     const QUrl itemUrl = data().value("url").toUrl();
 197
 198     view->setHoverSequenceState(itemUrl, sequenceIndex);
 199
 200     // Force-update the displayed icon
 201     invalidateIconCache();
 202     update();
 203 }
 204
 205 void KFileItemListWidget::hoverSequenceEnded()
 206 {
 207     KFileItemListView* view = listView();
 208
 209     if (!view) {
 210         return;
 211     }
 212
 213     view->setHoverSequenceState(QUrl(), 0);
 214 }
 215
 216 KFileItemListView* KFileItemListWidget::listView()
 217 {
 218     return dynamic_cast<KFileItemListView*>(parentItem());
 219 }
 220