Set currently selected printer to QCUPSSupport in PageSetupWidget

Also adds new method to allows setting a printer in QCUPSSupport by
printer name.

Change-Id: Iff7a88d95eab9de2c96872c45b12e708207bda16
Reviewed-by: John Layt <jlayt@kde.org>

src/printsupport/dialogs/qpagesetupdialog_unix.cpp

@@ -408,6 +408,7 @@ void QPageSetupWidget::selectPrinter()
     if (QCUPSSupport::isAvailable()) {
         m_cups = true;
         QCUPSSupport cups;
+        cups.setCurrentPrinter(m_printer->printerName());
         const ppd_option_t* pageSizes = cups.pageSizes();
         const int numChoices = pageSizes ? pageSizes->num_choices : 0;
 

src/printsupport/kernel/qcups.cpp

@@ -215,6 +215,17 @@ const ppd_file_t* QCUPSSupport::setCurrentPrinter(int index)
     return currPPD;
 }
 
+const ppd_file_t* QCUPSSupport::setCurrentPrinter(const QString &printerName)
+{
+    Q_FOREACH (const QCUPSSupport::Printer &printer, QCUPSSupport::availableUnixPrinters()) {
+        if (printer.name == printerName) {
+            return setCurrentPrinter(printer.cupsPrinterIndex);
+        }
+    }
+
+    return 0;
+}
+
 int QCUPSSupport::currentPrinterIndex() const
 {
     return currPrinterIndex;

src/printsupport/kernel/qcups_p.h

@@ -149,6 +149,7 @@ public:
     const cups_dest_t* availablePrinters() const;
     int currentPrinterIndex() const;
     const ppd_file_t* setCurrentPrinter(int index);
+    const ppd_file_t* setCurrentPrinter(const QString &printerName);
 
     const ppd_file_t* currentPPD() const;
     const ppd_option_t* ppdOption(const char *key) const;