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, 11 insertions, 5 deletions

diff --git a/src/plugins/platforms/vnc/main.cpp b/src/plugins/platforms/vnc/main.cpp
index ac7e18e03f..37de190a10 100644
--- a/src/plugins/platforms/vnc/main.cpp
+++ b/src/plugins/platforms/vnc/main.cpp
@@ -43,6 +43,8 @@
 
 QT_BEGIN_NAMESPACE
 
+using namespace Qt::StringLiterals;
+
 class QVncIntegrationPlugin : public QPlatformIntegrationPlugin
 {
     Q_OBJECT
@@ -53,7 +55,7 @@ public:
 
 QPlatformIntegration* QVncIntegrationPlugin::create(const QString& system, const QStringList& paramList)
 {
-    if (!system.compare(QLatin1String("vnc"), Qt::CaseInsensitive))
+    if (!system.compare("vnc"_L1, Qt::CaseInsensitive))
         return new QVncIntegration(paramList);
 
     return nullptr;
diff --git a/src/plugins/platforms/vnc/qvncintegration.cpp b/src/plugins/platforms/vnc/qvncintegration.cpp
index e6586ebfa6..04bc644878 100644
--- a/src/plugins/platforms/vnc/qvncintegration.cpp
+++ b/src/plugins/platforms/vnc/qvncintegration.cpp
@@ -58,11 +58,13 @@
 
 QT_BEGIN_NAMESPACE
 
+using namespace Qt::StringLiterals;
+
 QVncIntegration::QVncIntegration(const QStringList &paramList)
     : m_fontDb(new QGenericUnixFontDatabase),
       m_services(new QGenericUnixServices)
 {
-    QRegularExpression portRx(QLatin1String("port=(\\d+)"));
+    QRegularExpression portRx("port=(\\d+)"_L1);
     quint16 port = 5900;
     for (const QString &arg : paramList) {
         QRegularExpressionMatch match;
diff --git a/src/plugins/platforms/vnc/qvncscreen.cpp b/src/plugins/platforms/vnc/qvncscreen.cpp
index f3d711e5c9..432132bdf5 100644
--- a/src/plugins/platforms/vnc/qvncscreen.cpp
+++ b/src/plugins/platforms/vnc/qvncscreen.cpp
@@ -49,6 +49,8 @@
 
 QT_BEGIN_NAMESPACE
 
+using namespace Qt::StringLiterals;
+
 
 QVncScreen::QVncScreen(const QStringList &args)
     : mArgs(args)
@@ -66,9 +68,9 @@ QVncScreen::~QVncScreen()
 
 bool QVncScreen::initialize()
 {
-    QRegularExpression sizeRx(QLatin1String("size=(\\d+)x(\\d+)"));
-    QRegularExpression mmSizeRx(QLatin1String("mmsize=(?<width>(\\d*\\.)?\\d+)x(?<height>(\\d*\\.)?\\d+)"));
-    QRegularExpression depthRx(QLatin1String("depth=(\\d+)"));
+    QRegularExpression sizeRx("size=(\\d+)x(\\d+)"_L1);
+    QRegularExpression mmSizeRx("mmsize=(?<width>(\\d*\\.)?\\d+)x(?<height>(\\d*\\.)?\\d+)"_L1);
+    QRegularExpression depthRx("depth=(\\d+)"_L1);
 
     mGeometry = QRect(0, 0, 1024, 768);
     mFormat = QImage::Format_ARGB32_Premultiplied;