Plugins: stop using QLatin1Char constructor for creating char literals

Required for porting away from QLatin1Char/QLatin1String in scope of
QTBUG-98434.

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

Change-Id: Id76add7e86b6dfb89f758a9efb0644067f0f44de
Reviewed-by: Marc Mutz <marc.mutz@qt.io>

3 files changed, 10 insertions, 10 deletions

diff --git a/src/plugins/platformthemes/gtk3/qgtk3dialoghelpers.cpp b/src/plugins/platformthemes/gtk3/qgtk3dialoghelpers.cpp
index 9d22f0b701..9ffd5fd496 100644
--- a/src/plugins/platformthemes/gtk3/qgtk3dialoghelpers.cpp
+++ b/src/plugins/platformthemes/gtk3/qgtk3dialoghelpers.cpp
@@ -521,7 +521,7 @@ void QGtk3FileDialogHelper::setNameFilters(const QStringList &filters)
 
     foreach (const QString &filter, filters) {
         GtkFileFilter *gtkFilter = gtk_file_filter_new();
-        const QString name = filter.left(filter.indexOf(QLatin1Char('(')));
+        const QString name = filter.left(filter.indexOf(u'('));
         const QStringList extensions = cleanFilterList(filter);
 
         gtk_file_filter_set_name(gtkFilter, qUtf8Printable(name.isEmpty() ? extensions.join(QLatin1String(", ")) : name));
diff --git a/src/plugins/platformthemes/gtk3/qgtk3menu.cpp b/src/plugins/platformthemes/gtk3/qgtk3menu.cpp
index 8726708917..50eb790340 100644
--- a/src/plugins/platformthemes/gtk3/qgtk3menu.cpp
+++ b/src/plugins/platformthemes/gtk3/qgtk3menu.cpp
@@ -158,23 +158,23 @@ static QString convertMnemonics(QString text, bool *found)
 {
     *found = false;
 
-    int i = text.length() - 1;
+    qsizetype i = text.length() - 1;
     while (i >= 0) {
         const QChar c = text.at(i);
-        if (c == QLatin1Char('&')) {
-            if (i == 0 || text.at(i - 1) != QLatin1Char('&')) {
+        if (c == u'&') {
+            if (i == 0 || text.at(i - 1) != u'&') {
                 // convert Qt to GTK mnemonic
                 if (i < text.length() - 1 && !text.at(i + 1).isSpace()) {
-                    text.replace(i, 1, QLatin1Char('_'));
+                    text.replace(i, 1, u'_');
                     *found = true;
                 }
-            } else if (text.at(i - 1) == QLatin1Char('&')) {
+            } else if (text.at(i - 1) == u'&') {
                 // unescape ampersand
-                text.replace(--i, 2, QLatin1Char('&'));
+                text.replace(--i, 2, u'&');
             }
-        } else if (c == QLatin1Char('_')) {
+        } else if (c == u'_') {
             // escape GTK mnemonic
-            text.insert(i, QLatin1Char('_'));
+            text.insert(i, u'_');
         }
         --i;
     }
diff --git a/src/plugins/platformthemes/xdgdesktopportal/qxdgdesktopportalfiledialog.cpp b/src/plugins/platformthemes/xdgdesktopportal/qxdgdesktopportalfiledialog.cpp
index 61d0059898..92ac792b9c 100644
--- a/src/plugins/platformthemes/xdgdesktopportal/qxdgdesktopportalfiledialog.cpp
+++ b/src/plugins/platformthemes/xdgdesktopportal/qxdgdesktopportalfiledialog.cpp
@@ -251,7 +251,7 @@ void QXdgDesktopPortalFileDialog::openPortal()
             QRegularExpressionMatch match = regexp.match(nameFilter);
             if (match.hasMatch()) {
                 QString userVisibleName = match.captured(1);
-                QStringList filterStrings = match.captured(2).split(QLatin1Char(' '), Qt::SkipEmptyParts);
+                QStringList filterStrings = match.captured(2).split(u' ', Qt::SkipEmptyParts);
 
                 if (filterStrings.isEmpty()) {
                     qWarning() << "Filter " << userVisibleName << " is empty and will be ignored.";