QtPrintSupport: Add CUPS printsupport plugin

Move CUPS code around to create a new CUPS printsupport plugin, this
fixes QPrinterInfo for CUPS which depends on the plugin to work.

It QT_NO_CUPS is defined then the plugin is not built and only Print
to PDF is supported under Linux.

* Move unused genericiunixprintersupport plugin to start new CUPS
  printsupport plugin
* Split QPdfPrintEngine to create QCupsPrintEngine
* Remove LPR related code from QPdfPrintEngine
* Move CUPS specific code from plugin base class to derived CUPS class
* Remove forcing CUPS print engine to use PDF mode as PDF is now Native
* Move qt_getCupsPrinterPaperSizes from qprinterinfo_unix to
  QCUPSSupport
* Remove qprinterinfo_unix as no longer used
* Remove all QT_NO_LPR uses

There is now no CUPS specific code left in printsupport/kernel except
QCUPSSupport which is needed for the dialogs.

Task-number: QTBUG-23060

Change-Id: Ie8fa4512a2424edc8943068e0fa9fb714cc42db9
Reviewed-by: Teemu Katajisto <teemu.katajisto@digia.com>
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
Reviewed-by: John Layt <jlayt@kde.org>

1 files changed, 0 insertions, 20 deletions

diff --git a/src/printsupport/kernel/qplatformprintersupport_qpa.cpp b/src/printsupport/kernel/qplatformprintersupport_qpa.cpp
index d2459dc91d..7bf2b291d0 100644
--- a/src/printsupport/kernel/qplatformprintersupport_qpa.cpp
+++ b/src/printsupport/kernel/qplatformprintersupport_qpa.cpp
@@ -117,26 +117,6 @@ bool QPlatformPrinterSupport::printerInfoIsDefault(const QPrinterInfo &p)
     return p.d_func()->isDefault;
 }
 
-int QPlatformPrinterSupport::printerInfoCupsPrinterIndex(const QPrinterInfo &p)
-{
-#if !defined(QT_NO_CUPS) && !defined(QT_NO_LIBRARY)
-    return p.isNull() ? -1 : p.d_func()->cupsPrinterIndex;
-#else
-    Q_UNUSED(p)
-    return -1;
-#endif
-}
-
-void QPlatformPrinterSupport::setPrinterInfoCupsPrinterIndex(QPrinterInfo *p, int index)
-{
-#if !defined(QT_NO_CUPS) && !defined(QT_NO_LIBRARY)
-    p->d_func()->cupsPrinterIndex = index;
-#else
-    Q_UNUSED(p)
-    Q_UNUSED(index)
-#endif
-}
-
 /*
     Converts QSizeF in millimeters to a predefined PaperSize (returns Custom if
     the size isn't a standard size)