CUPS: Use default cups job-priority instead of 50

This also reads the job-priority from lpoptions if set there for the particular printer

Change-Id: I75d983c377d2135a0b0d3e028829a7384a5e1897
Reviewed-by: Laurent Montel <laurent.montel@kdab.com>
Reviewed-by: Frederik Gladhorn <frederik.gladhorn@qt.io>

src/plugins/printsupport/cups/qppdprintdevice.cpp

@@ -427,6 +427,8 @@ QVariant QPpdPrintDevice::property(QPrintDevice::PrintDevicePropertyKey key) con
 {
     if (key == PDPK_PpdFile)
         return QVariant::fromValue<ppd_file_t *>(m_ppd);
+    else if (key == PDPK_CupsJobPriority)
+        return printerOption(QStringLiteral("job-priority"));
 
     return QVariant();
 }

src/printsupport/dialogs/qprintdialog_unix.cpp

@@ -333,7 +333,7 @@ QPrintPropertiesDialog::QPrintPropertiesDialog(QPrinter *printer, QPrintDevice *
     widget.pageSetup->setPrinter(printer, outputFormat, printerName);
 
 #if QT_CONFIG(cupsjobwidget)
-    m_jobOptions = new QCupsJobWidget(printer);
+    m_jobOptions = new QCupsJobWidget(printer, currentPrintDevice);
     widget.tabs->insertTab(1, m_jobOptions, tr("Job Options"));
 #endif
 

src/printsupport/kernel/qcups_p.h

@@ -67,8 +67,9 @@ QT_BEGIN_NAMESPACE
 // removed from the dialogs.
 #define PPK_CupsOptions QPrintEngine::PrintEnginePropertyKey(0xfe00)
 
-#define PDPK_PpdFile   QPrintDevice::PrintDevicePropertyKey(QPrintDevice::PDPK_CustomBase)
-#define PDPK_PpdOption QPrintDevice::PrintDevicePropertyKey(QPrintDevice::PDPK_CustomBase + 1)
+#define PDPK_PpdFile         QPrintDevice::PrintDevicePropertyKey(QPrintDevice::PDPK_CustomBase)
+#define PDPK_PpdOption       QPrintDevice::PrintDevicePropertyKey(QPrintDevice::PDPK_CustomBase + 1)
+#define PDPK_CupsJobPriority QPrintDevice::PrintDevicePropertyKey(QPrintDevice::PDPK_CustomBase + 2)
 
 class Q_PRINTSUPPORT_EXPORT QCUPSSupport
 {

src/printsupport/widgets/qcupsjobwidget.cpp

@@ -52,6 +52,8 @@
 #include <QPrinter>
 #include <QPrintEngine>
 
+#include <kernel/qprintdevice_p.h>
+
 QT_BEGIN_NAMESPACE
 
 /*!
@@ -64,9 +66,10 @@ QT_BEGIN_NAMESPACE
     \inmodule QtPrintSupport
  */
 
-QCupsJobWidget::QCupsJobWidget(QPrinter *printer, QWidget *parent)
+QCupsJobWidget::QCupsJobWidget(QPrinter *printer, QPrintDevice *printDevice, QWidget *parent)
     : QWidget(parent),
-      m_printer(printer)
+      m_printer(printer),
+      m_printDevice(printDevice)
 {
     m_ui.setupUi(this);
     //set all the default values
@@ -151,7 +154,18 @@ QString QCupsJobWidget::jobBilling() const
 
 void QCupsJobWidget::initJobPriority()
 {
-    setJobPriority(50);
+    int priority = -1;
+    if (m_printDevice) {
+        bool ok;
+        priority = m_printDevice->property(PDPK_CupsJobPriority).toInt(&ok);
+        if (!ok)
+            priority = -1;
+    }
+
+    if (priority < 0 || priority > 100)
+        priority = 50;
+
+    setJobPriority(priority);
 }
 
 void QCupsJobWidget::setJobPriority(int jobPriority)

src/printsupport/widgets/qcupsjobwidget_p.h

@@ -65,13 +65,14 @@ QT_BEGIN_NAMESPACE
 class QString;
 class QTime;
 class QPrinter;
+class QPrintDevice;
 
 class QCupsJobWidget : public QWidget
 {
     Q_OBJECT
 
 public:
-    explicit QCupsJobWidget(QPrinter *printer, QWidget *parent = nullptr);
+    explicit QCupsJobWidget(QPrinter *printer, QPrintDevice *printDevice, QWidget *parent = nullptr);
     ~QCupsJobWidget();
     void setupPrinter();
 
@@ -102,6 +103,7 @@ private:
     void initBannerPages();
 
     QPrinter *m_printer;
+    QPrintDevice *m_printDevice;
     Ui::QCupsJobWidget m_ui;
 
     Q_DISABLE_COPY(QCupsJobWidget)