modernize: use nullptr

src/ChatPage.h

@@ -65,7 +65,7 @@ class ChatPage : public QWidget
         Q_OBJECT
 
 public:
-        ChatPage(QSharedPointer<UserSettings> userSettings, QWidget *parent = 0);
+        ChatPage(QSharedPointer<UserSettings> userSettings, QWidget *parent = nullptr);
 
         // Initialize all the components of the UI.
         void bootstrap(QString userid, QString homeserver, QString token);

src/LoginPage.cpp

@@ -111,7 +111,7 @@ LoginPage::LoginPage(QWidget *parent)
 
         form_layout_->addLayout(matrixidLayout_);
         form_layout_->addWidget(password_input_);
-        form_layout_->addWidget(deviceName_, Qt::AlignHCenter, 0);
+        form_layout_->addWidget(deviceName_, Qt::AlignHCenter, nullptr);
         form_layout_->addLayout(serverLayout_);
 
         button_layout_ = new QHBoxLayout();

src/LoginPage.h

@@ -38,7 +38,7 @@ class LoginPage : public QWidget
         Q_OBJECT
 
 public:
-        LoginPage(QWidget *parent = 0);
+        LoginPage(QWidget *parent = nullptr);
 
         void reset();
 

src/MainWindow.h

@@ -62,7 +62,7 @@ class MainWindow : public QMainWindow
         Q_OBJECT
 
 public:
-        explicit MainWindow(QWidget *parent = 0);
+        explicit MainWindow(QWidget *parent = nullptr);
 
         static MainWindow *instance() { return instance_; };
         void saveCurrentWindowSize();

src/RegisterPage.cpp

@@ -90,10 +90,10 @@ RegisterPage::RegisterPage(QWidget *parent)
         server_input_ = new TextField();
         server_input_->setLabel(tr("Home Server"));
 
-        form_layout_->addWidget(username_input_, Qt::AlignHCenter, 0);
-        form_layout_->addWidget(password_input_, Qt::AlignHCenter, 0);
-        form_layout_->addWidget(password_confirmation_, Qt::AlignHCenter, 0);
-        form_layout_->addWidget(server_input_, Qt::AlignHCenter, 0);
+        form_layout_->addWidget(username_input_, Qt::AlignHCenter, nullptr);
+        form_layout_->addWidget(password_input_, Qt::AlignHCenter, nullptr);
+        form_layout_->addWidget(password_confirmation_, Qt::AlignHCenter, nullptr);
+        form_layout_->addWidget(server_input_, Qt::AlignHCenter, nullptr);
 
         button_layout_ = new QHBoxLayout();
         button_layout_->setSpacing(0);

src/RegisterPage.h

@@ -30,7 +30,7 @@ class RegisterPage : public QWidget
         Q_OBJECT
 
 public:
-        RegisterPage(QWidget *parent = 0);
+        RegisterPage(QWidget *parent = nullptr);
 
 protected:
         void paintEvent(QPaintEvent *event) override;

src/RoomInfoListItem.h

@@ -65,7 +65,7 @@ class RoomInfoListItem : public QWidget
         Q_PROPERTY(QColor btnTextColor READ btnTextColor WRITE setBtnTextColor)
 
 public:
-        RoomInfoListItem(QString room_id, const RoomInfo &info, QWidget *parent = 0);
+        RoomInfoListItem(QString room_id, const RoomInfo &info, QWidget *parent = nullptr);
 
         void updateUnreadMessageCount(int count, int highlightedCount);
         void clearUnreadMessageCount() { updateUnreadMessageCount(0, 0); };

src/RoomList.h

@@ -35,7 +35,7 @@ class RoomList : public QWidget
         Q_OBJECT
 
 public:
-        explicit RoomList(QWidget *parent = 0);
+        explicit RoomList(QWidget *parent = nullptr);
 
         void initialize(const QMap<QString, RoomInfo> &info);
         void sync(const std::map<QString, RoomInfo> &info);

src/TextInputWidget.h

@@ -142,7 +142,7 @@ class TextInputWidget : public QWidget
         Q_PROPERTY(QColor borderColor READ borderColor WRITE setBorderColor)
 
 public:
-        TextInputWidget(QWidget *parent = 0);
+        TextInputWidget(QWidget *parent = nullptr);
 
         void stopTyping();
 

src/TopRoomBar.h

@@ -40,7 +40,7 @@ class TopRoomBar : public QWidget
         Q_PROPERTY(QColor borderColor READ borderColor WRITE setBorderColor)
 
 public:
-        TopRoomBar(QWidget *parent = 0);
+        TopRoomBar(QWidget *parent = nullptr);
 
         void updateRoomAvatar(const QString &avatar_image);
         void updateRoomAvatar(const QIcon &icon);

src/UserInfoWidget.h

@@ -31,7 +31,7 @@ class UserInfoWidget : public QWidget
         Q_PROPERTY(QColor borderColor READ borderColor WRITE setBorderColor)
 
 public:
-        UserInfoWidget(QWidget *parent = 0);
+        UserInfoWidget(QWidget *parent = nullptr);
 
         void setDisplayName(const QString &name);
         void setUserId(const QString &userid);

src/UserSettingsPage.h

@@ -147,7 +147,7 @@ class UserSettingsPage : public QWidget
         Q_OBJECT
 
 public:
-        UserSettingsPage(QSharedPointer<UserSettings> settings, QWidget *parent = 0);
+        UserSettingsPage(QSharedPointer<UserSettings> settings, QWidget *parent = nullptr);
 
 protected:
         void showEvent(QShowEvent *event) override;

src/WelcomePage.h

@@ -7,7 +7,7 @@ class WelcomePage : public QWidget
         Q_OBJECT
 
 public:
-        explicit WelcomePage(QWidget *parent = 0);
+        explicit WelcomePage(QWidget *parent = nullptr);
 
 protected:
         void paintEvent(QPaintEvent *) override;

src/dialogs/ImageOverlay.cpp

@@ -32,7 +32,7 @@ ImageOverlay::ImageOverlay(QPixmap image, QWidget *parent)
   , originalImage_{image}
 {
         setMouseTracking(true);
-        setParent(0);
+        setParent(nullptr);
 
         setWindowFlags(windowFlags() | Qt::FramelessWindowHint);
 

src/popups/ReplyPopup.cpp

@@ -13,9 +13,9 @@
 
 ReplyPopup::ReplyPopup(QWidget *parent)
   : QWidget(parent)
-  , userItem_{0}
-  , msgLabel_{0}
-  , eventLabel_{0}
+  , userItem_{nullptr}
+  , msgLabel_{nullptr}
+  , eventLabel_{nullptr}
 {
         setAttribute(Qt::WA_ShowWithoutActivating, true);
         setWindowFlags(Qt::ToolTip | Qt::NoDropShadowWindowHint);

src/popups/SuggestionsPopup.h

@@ -59,7 +59,7 @@ private:
                 size_t posToRemove = layout_->count() - 1;
 
                 QLayoutItem *item;
-                while (startingPos <= posToRemove && (item = layout_->takeAt(posToRemove)) != 0) {
+                while (startingPos <= posToRemove && (item = layout_->takeAt(posToRemove)) != nullptr) {
                         delete item->widget();
                         delete item;
 

src/timeline/TimelineModel.h

@@ -126,7 +126,7 @@ class TimelineModel : public QAbstractListModel
                      typingUsersChanged)
 
 public:
-        explicit TimelineModel(TimelineViewManager *manager, QString room_id, QObject *parent = 0);
+        explicit TimelineModel(TimelineViewManager *manager, QString room_id, QObject *parent = nullptr);
 
         enum Roles
         {

src/timeline/TimelineViewManager.h

@@ -29,7 +29,7 @@ class TimelineViewManager : public QObject
                      replyingEventChanged)
 
 public:
-        TimelineViewManager(QSharedPointer<UserSettings> userSettings, QWidget *parent = 0);
+        TimelineViewManager(QSharedPointer<UserSettings> userSettings, QWidget *parent = nullptr);
         QWidget *getWidget() const { return container; }
 
         void sync(const mtx::responses::Rooms &rooms);

src/ui/Avatar.h

@@ -15,7 +15,7 @@ class Avatar : public QWidget
         Q_PROPERTY(QColor backgroundColor WRITE setBackgroundColor READ backgroundColor)
 
 public:
-        explicit Avatar(QWidget *parent = 0, int size = ui::AvatarSize);
+        explicit Avatar(QWidget *parent = nullptr, int size = ui::AvatarSize);
 
         void setBackgroundColor(const QColor &color);
         void setIcon(const QIcon &icon);

src/ui/Badge.h

@@ -16,9 +16,9 @@ class Badge : public OverlayWidget
         Q_PROPERTY(QPointF relativePosition WRITE setRelativePosition READ relativePosition)
 
 public:
-        explicit Badge(QWidget *parent = 0);
-        explicit Badge(const QIcon &icon, QWidget *parent = 0);
-        explicit Badge(const QString &text, QWidget *parent = 0);
+        explicit Badge(QWidget *parent = nullptr);
+        explicit Badge(const QIcon &icon, QWidget *parent = nullptr);
+        explicit Badge(const QString &text, QWidget *parent = nullptr);
 
         void setBackgroundColor(const QColor &color);
         void setTextColor(const QColor &color);