Setup parent pointer

Rely on Qt to do the delete, since the parent ownership is setup
correctly.

src/gui/addnewtorrentdialog.cpp

@@ -718,7 +718,7 @@ void AddNewTorrentDialog::setupTreeview()
         m_contentModel = new TorrentContentFilterModel(this);
         connect(m_contentModel->model(), SIGNAL(filteredFilesChanged()), SLOT(updateDiskSpaceLabel()));
         ui->contentTreeView->setModel(m_contentModel);
-        m_contentDelegate = new PropListDelegate();
+        m_contentDelegate = new PropListDelegate(nullptr);
         ui->contentTreeView->setItemDelegate(m_contentDelegate);
         connect(ui->contentTreeView, SIGNAL(clicked(const QModelIndex &)), ui->contentTreeView, SLOT(edit(const QModelIndex &)));
         connect(ui->contentTreeView, SIGNAL(customContextMenuRequested(const QPoint &)), this, SLOT(displayContentTreeMenu(const QPoint &)));

src/gui/properties/peerlistwidget.cpp

@@ -67,7 +67,7 @@ PeerListWidget::PeerListWidget(PropertiesWidget *parent)
     setSelectionMode(QAbstractItemView::ExtendedSelection);
     header()->setStretchLastSection(false);
     // List Model
-    m_listModel = new QStandardItemModel(0, PeerListDelegate::COL_COUNT);
+    m_listModel = new QStandardItemModel(0, PeerListDelegate::COL_COUNT, this);
     m_listModel->setHeaderData(PeerListDelegate::COUNTRY, Qt::Horizontal, tr("Country")); // Country flag column
     m_listModel->setHeaderData(PeerListDelegate::IP, Qt::Horizontal, tr("IP"));
     m_listModel->setHeaderData(PeerListDelegate::PORT, Qt::Horizontal, tr("Port"));
@@ -90,7 +90,7 @@ PeerListWidget::PeerListWidget(PropertiesWidget *parent)
     m_listModel->setHeaderData(PeerListDelegate::TOT_UP, Qt::Horizontal, QVariant(Qt::AlignRight | Qt::AlignVCenter), Qt::TextAlignmentRole);
     m_listModel->setHeaderData(PeerListDelegate::RELEVANCE, Qt::Horizontal, QVariant(Qt::AlignRight | Qt::AlignVCenter), Qt::TextAlignmentRole);
     // Proxy model to support sorting without actually altering the underlying model
-    m_proxyModel = new PeerListSortModel();
+    m_proxyModel = new PeerListSortModel(this);
     m_proxyModel->setDynamicSortFilter(true);
     m_proxyModel->setSourceModel(m_listModel);
     m_proxyModel->setSortCaseSensitivity(Qt::CaseInsensitive);
@@ -144,12 +144,8 @@ PeerListWidget::PeerListWidget(PropertiesWidget *parent)
 PeerListWidget::~PeerListWidget()
 {
     saveSettings();
-    delete m_proxyModel;
-    delete m_listModel;
-    delete m_listDelegate;
     if (m_resolver)
         delete m_resolver;
-    delete m_copyHotkey;
 }
 
 void PeerListWidget::displayToggleColumnsMenu(const QPoint&)

src/gui/properties/proplistdelegate.cpp

@@ -62,8 +62,8 @@ namespace {
     }
 }
 
-PropListDelegate::PropListDelegate(PropertiesWidget *properties, QObject *parent)
-    : QItemDelegate(parent)
+PropListDelegate::PropListDelegate(PropertiesWidget *properties)
+    : QItemDelegate(properties)
     , m_properties(properties)
 {
 }

src/gui/properties/proplistdelegate.h

@@ -54,7 +54,7 @@ class PropListDelegate : public QItemDelegate
     Q_OBJECT
 
 public:
-    PropListDelegate(PropertiesWidget *properties = 0, QObject *parent = 0);
+    PropListDelegate(PropertiesWidget *properties);
 
     void paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const;
     void setEditorData(QWidget *editor, const QModelIndex &index) const;

src/gui/search/searchlistdelegate.h

@@ -36,7 +36,7 @@
 class SearchListDelegate: public QItemDelegate
 {
 public:
-    explicit SearchListDelegate(QObject *parent = 0);
+    explicit SearchListDelegate(QObject *parent);
 
     void paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const;
     QWidget* createEditor(QWidget*, const QStyleOptionViewItem &, const QModelIndex &) const;