qt: Replace obsolete functions of QDesktopWidget

Author: hebasto

src/qt/bitcoingui.cpp

@@ -40,14 +40,14 @@
 #include <QApplication>
 #include <QComboBox>
 #include <QDateTime>
-#include <QDesktopWidget>
 #include <QDragEnterEvent>
 #include <QListWidget>
 #include <QMenu>
 #include <QMenuBar>
 #include <QMessageBox>
 #include <QMimeData>
 #include <QProgressDialog>
+#include <QScreen>
 #include <QSettings>
 #include <QShortcut>
 #include <QStackedWidget>
@@ -81,7 +81,7 @@ BitcoinGUI::BitcoinGUI(interfaces::Node& node, const PlatformStyle *_platformSty
     QSettings settings;
     if (!restoreGeometry(settings.value("MainWindowGeometry").toByteArray())) {
         // Restore failed (perhaps missing setting), center the window
-        move(QApplication::desktop()->availableGeometry().center() - frameGeometry().center());
+        move(QGuiApplication::primaryScreen()->availableGeometry().center() - frameGeometry().center());
     }
 
 #ifdef ENABLE_WALLET

src/qt/guiutil.cpp

@@ -39,7 +39,6 @@
 #include <QClipboard>
 #include <QDateTime>
 #include <QDesktopServices>
-#include <QDesktopWidget>
 #include <QDoubleValidator>
 #include <QFileDialog>
 #include <QFont>

src/qt/rpcconsole.cpp

@@ -28,11 +28,11 @@
 #include <wallet/wallet.h>
 #endif
 
-#include <QDesktopWidget>
 #include <QKeyEvent>
 #include <QMenu>
 #include <QMessageBox>
 #include <QScrollBar>
+#include <QScreen>
 #include <QSettings>
 #include <QSignalMapper>
 #include <QTime>
@@ -451,7 +451,7 @@ RPCConsole::RPCConsole(interfaces::Node& node, const PlatformStyle *_platformSty
     QSettings settings;
     if (!restoreGeometry(settings.value("RPCConsoleWindowGeometry").toByteArray())) {
         // Restore failed (perhaps missing setting), center the window
-        move(QApplication::desktop()->availableGeometry().center() - frameGeometry().center());
+        move(QGuiApplication::primaryScreen()->availableGeometry().center() - frameGeometry().center());
     }
 
     QChar nonbreaking_hyphen(8209);

src/qt/splashscreen.cpp

@@ -21,9 +21,9 @@
 
 #include <QApplication>
 #include <QCloseEvent>
-#include <QDesktopWidget>
 #include <QPainter>
 #include <QRadialGradient>
+#include <QScreen>
 
 
 SplashScreen::SplashScreen(interfaces::Node& node, Qt::WindowFlags f, const NetworkStyle *networkStyle) :
@@ -124,7 +124,7 @@ SplashScreen::SplashScreen(interfaces::Node& node, Qt::WindowFlags f, const Netw
     QRect r(QPoint(), QSize(pixmap.size().width()/devicePixelRatio,pixmap.size().height()/devicePixelRatio));
     resize(r.size());
     setFixedSize(r.size());
-    move(QApplication::desktop()->screenGeometry().center() - r.center());
+    move(QGuiApplication::primaryScreen()->geometry().center() - r.center());
 
     subscribeToCoreSignals();
     installEventFilter(this);