clang-tidy: modernize-use-nullptr run

src/fileTree.cpp

@@ -27,7 +27,7 @@ File::fullPath(const Folder *root /*= 0*/) const
     QString path;
 
     if (root == this)
-        root = 0; //prevent returning empty string when there is something we could return
+        root = nullptr; //prevent returning empty string when there is something we could return
 
     for (const Folder *d = (Folder*)this; d != root && d; d = d->parent())
         path.prepend(d->name());

src/fileTree.h

@@ -41,7 +41,7 @@ public:
     friend class Folder;
 
 public:
-    File(const char *name, FileSize size) : m_parent(0), m_name(qstrdup(name)), m_size(size) {}
+    File(const char *name, FileSize size) : m_parent(nullptr), m_name(qstrdup(name)), m_size(size) {}
     virtual ~File() {
         delete [] m_name;
     }
@@ -63,7 +63,7 @@ public:
         return false;
     }
 
-    QString fullPath(const Folder* = 0) const;
+    QString fullPath(const Folder* = nullptr) const;
     QString humanReadableSize() const {
         return KFormat().formatByteSize(m_size);
     }
@@ -94,7 +94,7 @@ public:
     }
 
     ///appends a Folder
-    void append(Folder *d, const char *name=0)
+    void append(Folder *d, const char *name=nullptr)
     {
         if (name) {
             delete [] d->m_name;

src/historyAction.cpp

@@ -76,7 +76,7 @@ HistoryCollection::HistoryCollection(KActionCollection *ac, QObject *parent)
         : QObject(parent)
         , m_b(new HistoryAction(QIcon::fromTheme(QLatin1String( "go-previous" )), i18nc("Go to the last path viewed", "Back"), ac))
         , m_f(new HistoryAction(QIcon::fromTheme(QLatin1String( "go-next" )), i18nc("Go to forward in the history of paths viewed", "Forward"), ac))
-        , m_receiver(0)
+        , m_receiver(nullptr)
 {
     ac->addAction(QLatin1String( "go_back" ), m_b);
     ac->addAction(QLatin1String( "go_forward" ), m_f);
@@ -96,7 +96,7 @@ void HistoryCollection::push(const QUrl& url) //slot
 
         m_receiver->push(url);
     }
-    m_receiver = 0;
+    m_receiver = nullptr;
 }
 
 void HistoryCollection::pop() //slot

src/historyAction.h

@@ -72,7 +72,7 @@ public:
 public slots:
     void push(const QUrl& url);
     void stop() {
-        m_receiver = 0;
+        m_receiver = nullptr;
     }
 
 signals:

src/localLister.cpp

@@ -92,7 +92,7 @@ LocalLister::run()
     {
         qDebug() << "Scan successfully aborted";
         delete tree;
-        tree = 0;
+        tree = nullptr;
     }
     qDebug() << "Emitting signal to cache results ...";
     emit branchCompleted(tree);
@@ -198,7 +198,7 @@ LocalLister::scan(const QByteArray &path, const QByteArray &dirname)
 
         else if (S_ISDIR(statbuf.st_mode)) //folder
         {
-            Folder *d = 0;
+            Folder *d = nullptr;
             QByteArray new_dirname = ent->d_name;
             new_path += '/';
 

src/mainWindow.cpp

@@ -60,7 +60,7 @@ namespace Filelight {
 
 MainWindow::MainWindow()
     : KXmlGuiWindow()
-    , m_histories(0)
+    , m_histories(nullptr)
     , m_summary(nullptr)
     , m_map(nullptr)
     , m_started(false)
@@ -179,7 +179,7 @@ void MainWindow::setupActions() //singleton function
     action->setText(i18n("Scan Folder"));
     action->setIcon(QIcon::fromTheme(QStringLiteral("folder")));
 
-    QWidgetAction *locationAction = ac->add<QWidgetAction>(QStringLiteral("location_bar"), 0, 0);
+    QWidgetAction *locationAction = ac->add<QWidgetAction>(QStringLiteral("location_bar"), nullptr, nullptr);
     locationAction->setText(i18n("Location Bar"));
     locationAction->setDefaultWidget(m_combo);
 
@@ -390,7 +390,7 @@ bool MainWindow::openUrl(const QUrl &u)
     else
     {
         //we don't want to be using the summary screen anymore
-        if (m_summary != 0)
+        if (m_summary != nullptr)
             m_summary->hide();
 
         m_stateWidget->show();
@@ -487,7 +487,7 @@ void MainWindow::rescan()
 {
     if (m_summary && !m_summary->isHidden()) {
         delete m_summary;
-        m_summary = 0;
+        m_summary = nullptr;
         showSummary();
         return;
     }
@@ -542,7 +542,7 @@ void MainWindow::mapChanged(const Folder *tree)
 
 void MainWindow::showSummary()
 {
-    if (m_summary == 0) {
+    if (m_summary == nullptr) {
         m_summary = new SummaryWidget(widget());
         m_summary->setObjectName(QStringLiteral("summaryWidget"));
         connect(m_summary, &SummaryWidget::activated, this, &MainWindow::openUrl);

src/radialMap/map.cpp

@@ -38,7 +38,7 @@
 #include "widget.h"
 
 RadialMap::Map::Map(bool summary)
-        : m_signature(NULL)
+        : m_signature(nullptr)
         , m_visibleDepth(DEFAULT_RING_DEPTH)
         , m_ringBreadth(MIN_RING_BREADTH)
         , m_innerRadius(0)
@@ -59,7 +59,7 @@ RadialMap::Map::~Map()
 void RadialMap::Map::invalidate()
 {
     delete [] m_signature;
-    m_signature = NULL;
+    m_signature = nullptr;
 
     m_visibleDepth = Config::defaultRingDepth;
 }
@@ -232,7 +232,7 @@ bool RadialMap::Map::resize(const QRect &rect)
         //resize the pixmap
         size += MAP_2MARGIN;
 
-        if (m_signature != NULL)
+        if (m_signature != nullptr)
         {
             setRingBreadth();
             paint();

src/radialMap/map.h

@@ -43,7 +43,7 @@ public:
     bool resize(const QRect&);
 
     bool isNull() const {
-        return (m_signature == 0);
+        return (m_signature == nullptr);
     }
     void invalidate();
 

src/radialMap/widget.cpp

@@ -38,12 +38,12 @@
 
 RadialMap::Widget::Widget(QWidget *parent, bool isSummary)
         : QWidget(parent)
-        , m_tree(0)
-        , m_focus(0)
+        , m_tree(nullptr)
+        , m_focus(nullptr)
         , m_map(isSummary)
-        , m_rootSegment(0) //TODO we don't delete it, *shrug*
+        , m_rootSegment(nullptr) //TODO we don't delete it, *shrug*
         , m_isSummary(isSummary)
-        , m_toBeDeleted(0)
+        , m_toBeDeleted(nullptr)
 {
     setAcceptDrops(true);
     setMinimumSize(350, 250);
@@ -84,11 +84,11 @@ void RadialMap::Widget::invalidate()
         QUrl invalidatedUrl(url());
 
         //ensure this class won't think we have a map still
-        m_tree  = 0;
-        m_focus = 0;
+        m_tree  = nullptr;
+        m_focus = nullptr;
 
         delete m_rootSegment;
-        m_rootSegment = 0;
+        m_rootSegment = nullptr;
 
         //FIXME move this disablement thing no?
         //      it is confusing in other areas, like the whole createFromCache() thing
@@ -110,7 +110,7 @@ RadialMap::Widget::create(const Folder *tree)
 
     if (tree)
     {
-        m_focus = 0;
+        m_focus = nullptr;
         //generate the filemap image
         m_map.make(tree);
 
@@ -147,7 +147,7 @@ RadialMap::Widget::resizeTimeout() //slot
 {
     // the segments are about to erased!
     // this was a horrid bug, and proves the OO programming should be obeyed always!
-    m_focus = 0;
+    m_focus = nullptr;
     if (m_tree)
         m_map.make(m_tree, true);
     update();
@@ -163,7 +163,7 @@ RadialMap::Widget::refresh(int filth)
         switch (filth)
         {
         case 1:
-            m_focus=0;
+            m_focus=nullptr;
             m_map.make(m_tree, true); //true means refresh only
             break;
 
@@ -190,7 +190,7 @@ RadialMap::Widget::zoomIn() //slot
     if (m_map.m_visibleDepth > MIN_RING_DEPTH)
     {
         --m_map.m_visibleDepth;
-        m_focus = 0;
+        m_focus = nullptr;
         m_map.make(m_tree);
         Config::defaultRingDepth = m_map.m_visibleDepth;
         update();
@@ -200,7 +200,7 @@ RadialMap::Widget::zoomIn() //slot
 void
 RadialMap::Widget::zoomOut() //slot
 {
-    m_focus = 0;
+    m_focus = nullptr;
     ++m_map.m_visibleDepth;
     m_map.make(m_tree);
     if (m_map.m_visibleDepth > Config::defaultRingDepth)

src/radialMap/widget.h

@@ -51,13 +51,13 @@ class Widget : public QWidget
     Q_OBJECT
 
 public:
-    explicit Widget(QWidget* = 0, bool = false);
+    explicit Widget(QWidget* = nullptr, bool = false);
     ~Widget() override;
     QString path() const;
-    QUrl url(File const * const = 0) const;
+    QUrl url(File const * const = nullptr) const;
 
     bool isValid() const {
-        return m_tree != 0;
+        return m_tree != nullptr;
     }
 
     bool isSummary() const {

src/radialMap/widgetEvents.cpp

@@ -95,7 +95,7 @@ const RadialMap::Segment* RadialMap::Widget::segmentAt(QPoint &e) const
     e -= m_offset;
 
     if (!m_map.m_signature)
-        return 0;
+        return nullptr;
 
     if (e.x() <= m_map.width() && e.y() <= m_map.height())
     {
@@ -130,7 +130,7 @@ const RadialMap::Segment* RadialMap::Widget::segmentAt(QPoint &e) const
         else return m_rootSegment; //hovering over inner circle
     }
 
-    return 0;
+    return nullptr;
 }
 
 void RadialMap::Widget::mouseMoveEvent(QMouseEvent *e)
@@ -251,12 +251,12 @@ void RadialMap::Widget::mousePressEvent(QMouseEvent *e)
     }
 
     // Actions in the right click menu
-    QAction* openFileManager = 0;
-    QAction* openTerminal = 0;
-    QAction* centerMap = 0;
-    QAction* openFile = 0;
-    QAction* copyClipboard = 0;
-    QAction* deleteItem = 0;
+    QAction* openFileManager = nullptr;
+    QAction* openTerminal = nullptr;
+    QAction* centerMap = nullptr;
+    QAction* openFile = nullptr;
+    QAction* copyClipboard = nullptr;
+    QAction* deleteItem = nullptr;
 
     QMenu popup;
     popup.setTitle(m_focus->file()->fullPath(m_tree));
@@ -284,7 +284,7 @@ void RadialMap::Widget::mousePressEvent(QMouseEvent *e)
         deleteItem = popup.addAction(QIcon::fromTheme(QLatin1String( "edit-delete" )), i18n("&Delete"));
     }
 
-    QAction* clicked = popup.exec(e->globalPos(), 0);
+    QAction* clicked = popup.exec(e->globalPos(), nullptr);
 
     if (openFileManager && clicked == openFileManager) {
         KRun::runUrl(url, QLatin1String( "inode/directory" ), this);
@@ -328,8 +328,8 @@ void RadialMap::Widget::deleteJobFinished(KJob *job)
     if (!job->error() && m_toBeDeleted) {
         m_toBeDeleted->file()->parent()->remove(m_toBeDeleted->file());
         delete m_toBeDeleted->file();
-        m_toBeDeleted = 0;
-        m_focus = 0;
+        m_toBeDeleted = nullptr;
+        m_focus = nullptr;
         m_map.make(m_tree, true);
         repaint();
     } else

src/remoteLister.cpp

@@ -81,7 +81,7 @@ private:
 
 RemoteLister::RemoteLister(const QUrl &url, QWidget *parent, ScanManager* manager)
         : KDirLister(parent)
-        , m_root(new Store(url, url.url(), 0))
+        , m_root(new Store(url, url.url(), nullptr))
         , m_store(m_root)
         , m_manager(manager)
 {

src/scan.cpp

@@ -38,7 +38,7 @@ ScanManager::ScanManager(QObject *parent)
         , m_abort(false)
         , m_files(0)
         , m_mutex()
-        , m_thread(0)
+        , m_thread(nullptr)
 {
     Filelight::LocalLister::readMounts();
     connect(this, &ScanManager::branchCacheHit, this, &ScanManager::foundCached, Qt::QueuedConnection);
@@ -114,7 +114,7 @@ bool ScanManager::start(const QUrl &url)
             QVector<QStringRef> split = path.midRef(cachePath.length()).split(QLatin1Char('/'));
             Folder *d = folder;
 
-            while (!split.isEmpty() && d != NULL) { //if NULL we have got lost so abort!!
+            while (!split.isEmpty() && d != nullptr) { //if NULL we have got lost so abort!!
                 if (split.first().isEmpty()) { //found the dir
                     break;
                 }
@@ -197,7 +197,7 @@ void ScanManager::cacheTree(Folder *tree)
         m_thread->wait();
         qDebug() << "Thread terminated!";
         delete m_thread; //note the lister deletes itself
-        m_thread = 0;
+        m_thread = nullptr;
     }
 
     emit completed(tree);

src/settingsDialog.cpp

@@ -180,7 +180,7 @@ void SettingsDialog::addFolder()
         {
             Config::skipList.append(path);
             m_listBox->addItem(path);
-            if (m_listBox->currentItem() == 0) m_listBox->setCurrentRow(0);
+            if (m_listBox->currentItem() == nullptr) m_listBox->setCurrentRow(0);
             m_removeButton->setEnabled(true);
         }
         else QMessageBox::information(this, i18n("Folder already ignored"), i18n("That folder is already set to be excluded from scans."));

src/settingsDialog.h

@@ -35,7 +35,7 @@ class SettingsDialog : public QDialog, public Ui::Dialog
     Q_OBJECT
 
 public:
-    explicit SettingsDialog(QWidget* = 0);
+    explicit SettingsDialog(QWidget* = nullptr);
 
 protected:
     void closeEvent(QCloseEvent *) override;