Plugins: use _L1 for for creating Latin-1 string literals

As a drive-by, fix qsizetype -> int narrowing conversion warnings for
the touched lines.

Task-number: QTBUG-98434
Change-Id: I7fadd3cf27ad099028d70f05956303e3af62c0f5
Reviewed-by: Marc Mutz <marc.mutz@qt.io>

3 files changed, 20 insertions, 14 deletions

diff --git a/src/plugins/platforms/linuxfb/main.cpp b/src/plugins/platforms/linuxfb/main.cpp
index 24156b68e8..8ed57ab1ac 100644
--- a/src/plugins/platforms/linuxfb/main.cpp
+++ b/src/plugins/platforms/linuxfb/main.cpp
@@ -42,6 +42,8 @@
 
 QT_BEGIN_NAMESPACE
 
+using namespace Qt::StringLiterals;
+
 class QLinuxFbIntegrationPlugin : public QPlatformIntegrationPlugin
 {
     Q_OBJECT
@@ -53,7 +55,7 @@ public:
 QPlatformIntegration* QLinuxFbIntegrationPlugin::create(const QString& system, const QStringList& paramList)
 {
     Q_UNUSED(paramList);
-    if (!system.compare(QLatin1String("linuxfb"), Qt::CaseInsensitive))
+    if (!system.compare("linuxfb"_L1, Qt::CaseInsensitive))
         return new QLinuxFbIntegration(paramList);
 
     return 0;
diff --git a/src/plugins/platforms/linuxfb/qlinuxfbintegration.cpp b/src/plugins/platforms/linuxfb/qlinuxfbintegration.cpp
index e9f41e1a5c..0bb0310fa7 100644
--- a/src/plugins/platforms/linuxfb/qlinuxfbintegration.cpp
+++ b/src/plugins/platforms/linuxfb/qlinuxfbintegration.cpp
@@ -72,6 +72,8 @@
 
 QT_BEGIN_NAMESPACE
 
+using namespace Qt::StringLiterals;
+
 QLinuxFbIntegration::QLinuxFbIntegration(const QStringList &paramList)
     : m_primaryScreen(nullptr),
       m_fontDb(new QGenericUnixFontDatabase),
@@ -152,7 +154,7 @@ void QLinuxFbIntegration::createInputHandlers()
 {
 #if QT_CONFIG(libinput)
     if (!qEnvironmentVariableIntValue("QT_QPA_FB_NO_LIBINPUT")) {
-        new QLibInputHandler(QLatin1String("libinput"), QString());
+        new QLibInputHandler("libinput"_L1, QString());
         return;
     }
 #endif
@@ -160,16 +162,16 @@ void QLinuxFbIntegration::createInputHandlers()
 #if QT_CONFIG(tslib)
     bool useTslib = qEnvironmentVariableIntValue("QT_QPA_FB_TSLIB");
     if (useTslib)
-        new QTsLibMouseHandler(QLatin1String("TsLib"), QString());
+        new QTsLibMouseHandler("TsLib"_L1, QString());
 #endif
 
 #if QT_CONFIG(evdev)
-    m_kbdMgr = new QEvdevKeyboardManager(QLatin1String("EvdevKeyboard"), QString(), this);
-    new QEvdevMouseManager(QLatin1String("EvdevMouse"), QString(), this);
+    m_kbdMgr = new QEvdevKeyboardManager("EvdevKeyboard"_L1, QString(), this);
+    new QEvdevMouseManager("EvdevMouse"_L1, QString(), this);
 #if QT_CONFIG(tslib)
     if (!useTslib)
 #endif
-        new QEvdevTouchManager(QLatin1String("EvdevTouch"), QString() /* spec */, this);
+        new QEvdevTouchManager("EvdevTouch"_L1, QString() /* spec */, this);
 #endif
 }
 
diff --git a/src/plugins/platforms/linuxfb/qlinuxfbscreen.cpp b/src/plugins/platforms/linuxfb/qlinuxfbscreen.cpp
index 7467df2b93..ad32ebce70 100644
--- a/src/plugins/platforms/linuxfb/qlinuxfbscreen.cpp
+++ b/src/plugins/platforms/linuxfb/qlinuxfbscreen.cpp
@@ -65,6 +65,8 @@
 
 QT_BEGIN_NAMESPACE
 
+using namespace Qt::StringLiterals;
+
 static int openFramebufferDevice(const QString &dev)
 {
     int fd = -1;
@@ -308,11 +310,11 @@ QLinuxFbScreen::~QLinuxFbScreen()
 
 bool QLinuxFbScreen::initialize()
 {
-    QRegularExpression ttyRx(QLatin1String("tty=(.*)"));
-    QRegularExpression fbRx(QLatin1String("fb=(.*)"));
-    QRegularExpression mmSizeRx(QLatin1String("mmsize=(\\d+)x(\\d+)"));
-    QRegularExpression sizeRx(QLatin1String("size=(\\d+)x(\\d+)"));
-    QRegularExpression offsetRx(QLatin1String("offset=(\\d+)x(\\d+)"));
+    QRegularExpression ttyRx("tty=(.*)"_L1);
+    QRegularExpression fbRx("fb=(.*)"_L1);
+    QRegularExpression mmSizeRx("mmsize=(\\d+)x(\\d+)"_L1);
+    QRegularExpression sizeRx("size=(\\d+)x(\\d+)"_L1);
+    QRegularExpression offsetRx("offset=(\\d+)x(\\d+)"_L1);
 
     QString fbDevice, ttyDevice;
     QSize userMmSize;
@@ -322,7 +324,7 @@ bool QLinuxFbScreen::initialize()
     // Parse arguments
     for (const QString &arg : qAsConst(mArgs)) {
         QRegularExpressionMatch match;
-        if (arg == QLatin1String("nographicsmodeswitch"))
+        if (arg == "nographicsmodeswitch"_L1)
             doSwitchToGraphicsMode = false;
         else if (arg.contains(mmSizeRx, &match))
             userMmSize = QSize(match.captured(1).toInt(), match.captured(2).toInt());
@@ -337,9 +339,9 @@ bool QLinuxFbScreen::initialize()
     }
 
     if (fbDevice.isEmpty()) {
-        fbDevice = QLatin1String("/dev/fb0");
+        fbDevice = "/dev/fb0"_L1;
         if (!QFile::exists(fbDevice))
-            fbDevice = QLatin1String("/dev/graphics/fb0");
+            fbDevice = "/dev/graphics/fb0"_L1;
         if (!QFile::exists(fbDevice)) {
             qWarning("Unable to figure out framebuffer device. Specify it manually.");
             return false;