Printsupport: stop using QL1Char constructor for creating char literals

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

Change-Id: Ia186ed178239796bdf19db5b35a36ea606baf937
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>

src/plugins/printsupport/cups/qcupsprintengine.cpp

@@ -251,7 +251,7 @@ void QCupsPrintEnginePrivate::closePrintDevice()
 
         // Print the file
         // Cups expect the printer original name without instance, the full name is used only to retrieve the configuration
-        const auto parts = QStringView{printerName}.split(QLatin1Char('/'));
+        const auto parts = QStringView{printerName}.split(u'/');
         const auto printerOriginalName = parts.at(0);
         cups_option_t* optPtr = cupsOptStruct.size() ? &cupsOptStruct.first() : 0;
         cupsPrintFile(printerOriginalName.toLocal8Bit().constData(), tempFile.toLocal8Bit().constData(),

src/plugins/printsupport/cups/qcupsprintersupport.cpp

@@ -166,7 +166,7 @@ QStringList QCupsPrinterSupport::availablePrintDeviceIds() const
     for (int i = 0; i < count; ++i) {
         QString printerId = QString::fromLocal8Bit(dests[i].name);
         if (dests[i].instance)
-            printerId += QLatin1Char('/') + QString::fromLocal8Bit(dests[i].instance);
+            printerId += u'/' + QString::fromLocal8Bit(dests[i].instance);
         list.append(printerId);
     }
     cupsFreeDests(count, dests);
@@ -187,7 +187,7 @@ QString QCupsPrinterSupport::staticDefaultPrintDeviceId()
         if (dests[i].is_default) {
             printerId = QString::fromLocal8Bit(dests[i].name);
             if (dests[i].instance) {
-                printerId += QLatin1Char('/') + QString::fromLocal8Bit(dests[i].instance);
+                printerId += u'/' + QString::fromLocal8Bit(dests[i].instance);
                 break;
             }
         }

src/plugins/printsupport/cups/qppdprintdevice.cpp

@@ -64,7 +64,7 @@ QPpdPrintDevice::QPpdPrintDevice(const QString &id)
     if (!id.isEmpty()) {
 
         // TODO For now each dest is an individual device
-        const auto parts = QStringView{id}.split(QLatin1Char('/'));
+        const auto parts = QStringView{id}.split(u'/');
         m_cupsName = parts.at(0).toUtf8();
         if (parts.size() > 1)
             m_cupsInstance = parts.at(1).toUtf8();

src/printsupport/dialogs/qprintdialog_unix.cpp

@@ -1356,12 +1356,12 @@ QUnixPrintWidget::QUnixPrintWidget(QPrinter *printer, QWidget *parent)
     if (printer->outputFileName().isEmpty()) {
         QString home = QDir::homePath();
         QString cur = QDir::currentPath();
-        if (!home.endsWith(QLatin1Char('/')))
-            home += QLatin1Char('/');
+        if (!home.endsWith(u'/'))
+            home += u'/';
         if (!cur.startsWith(home))
             cur = home;
-        else if (!cur.endsWith(QLatin1Char('/')))
-            cur += QLatin1Char('/');
+        else if (!cur.endsWith(u'/'))
+            cur += u'/';
         if (QGuiApplication::platformName() == QStringLiteral("xcb")) {
             if (printer->docName().isEmpty()) {
                 cur += QStringLiteral("print.pdf");

src/printsupport/dialogs/qprintpreviewdialog.cpp

@@ -94,13 +94,13 @@ public:
     State validate(QString &input, int &pos) const override
     {
         bool replacePercent = false;
-        if (input.endsWith(QLatin1Char('%'))) {
+        if (input.endsWith(u'%')) {
             input = input.left(input.length() - 1);
             replacePercent = true;
         }
         State state = QDoubleValidator::validate(input, pos);
         if (replacePercent)
-            input += QLatin1Char('%');
+            input += u'%';
         const int num_size = 4;
         if (state == Intermediate) {
             int i = input.indexOf(QLocale::system().decimalPoint());
@@ -486,7 +486,7 @@ void QPrintPreviewDialogPrivate::updatePageNumLabel()
     int numPages = preview->pageCount();
     int maxChars = QString::number(numPages).length();
     pageNumLabel->setText(QString::fromLatin1("/ %1").arg(numPages));
-    int cyphersWidth = q->fontMetrics().horizontalAdvance(QString().fill(QLatin1Char('8'), maxChars));
+    int cyphersWidth = q->fontMetrics().horizontalAdvance(QString().fill(u'8', maxChars));
     int maxWidth = pageNumEdit->minimumSizeHint().width() + cyphersWidth;
     pageNumEdit->setMinimumWidth(maxWidth);
     pageNumEdit->setMaximumWidth(maxWidth);
@@ -577,8 +577,7 @@ void QPrintPreviewDialogPrivate::_q_print()
         QString suffix = QLatin1String(".pdf");
         QString fileName;
 #if QT_CONFIG(filedialog)
-        fileName = QFileDialog::getSaveFileName(q, title, printer->outputFileName(),
-                                                        QLatin1Char('*') + suffix);
+        fileName = QFileDialog::getSaveFileName(q, title, printer->outputFileName(), u'*' + suffix);
 #endif
         if (!fileName.isEmpty()) {
             if (QFileInfo(fileName).suffix().isEmpty())
@@ -630,7 +629,7 @@ void QPrintPreviewDialogPrivate::_q_zoomFactorChanged()
 {
     QString text = zoomFactor->lineEdit()->text();
     bool ok;
-    qreal factor = text.remove(QLatin1Char('%')).toFloat(&ok);
+    qreal factor = text.remove(u'%').toFloat(&ok);
     factor = qMax(qreal(1.0), qMin(qreal(1000.0), factor));
     if (ok) {
         preview->setZoomFactor(factor/100.0);

src/printsupport/kernel/qcups.cpp

@@ -231,7 +231,7 @@ QCUPSSupport::JobSheets QCUPSSupport::parseJobSheets(const QString &jobSheets)
 {
     JobSheets result;
 
-    const QStringList parts = jobSheets.split(QLatin1Char(','));
+    const QStringList parts = jobSheets.split(u',');
     if (parts.count() == 2) {
         result.startBannerPage = stringToBannerPage(parts[0]);
         result.endBannerPage = stringToBannerPage(parts[1]);
@@ -245,7 +245,7 @@ void QCUPSSupport::setBannerPages(QPrinter *printer, const BannerPage startBanne
     const QString startBanner = bannerPageToString(startBannerPage);
     const QString endBanner   = bannerPageToString(endBannerPage);
 
-    setCupsOption(printer, QStringLiteral("job-sheets"), startBanner + QLatin1Char(',') + endBanner);
+    setCupsOption(printer, QStringLiteral("job-sheets"), startBanner + u',' + endBanner);
 }
 
 void QCUPSSupport::setPageSet(QPrinter *printer, const PageSet pageSet)

src/printsupport/platform/windows/qwindowsprinterinfo.cpp

@@ -84,7 +84,7 @@ extern QPrinter::PaperSize mapDevmodePaperSize(int s);
 //    QString output = QString::fromWCharArray(buffer);
 //    if (output != noPrinters) {
 //        // Filter out the name of the printer, which should be everything before a comma.
-//        QString printerName = output.split(QLatin1Char(',')).value(0);
+//        QString printerName = output.split(u',').value(0);
 //        QPrinterInfo printerInfo(printerName);
 //        printerInfo.d_ptr->isDefault = true;
 //        return printerInfo;