tdf#91362: Don't override printer page autodetection

if printer settings haven't been modified

Change-Id: I68b0096ce6fa0f9e50db640a0acb3039ff7e66b5
Reviewed-on: https://gerrit.libreoffice.org/16529Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Christian Lohmaier <lohmaier+LibreOffice@googlemail.com>

include/vcl/print.hxx

@@ -310,6 +310,7 @@ public:
     const OUString&             GetName() const             { return maPrinterName; }
     const OUString&             GetDriverName() const       { return maDriver; }
     bool                        IsDefPrinter() const        { return mbDefPrinter; }
+    void                        SetDefPrinter(bool bDef)    {  mbDefPrinter = bDef; }
     bool                        IsDisplayPrinter() const    { return mpDisplayDev != nullptr; }
     bool                        IsValid() const             { return !IsDisplayPrinter(); }
 

vcl/generic/print/prtsetup.cxx

@@ -281,6 +281,7 @@ IMPL_LINK( RTSPaperPage, SelectHdl, ListBox*, pBox )
     }
     if( pKey )
     {
+        m_pParent->SetDataModified( true );
         PPDValue* pValue = static_cast<PPDValue*>(pBox->GetSelectEntryData());
         m_pParent->m_aJobData.m_aContext.setValue( pKey, pValue );
         update();
@@ -461,6 +462,7 @@ IMPL_LINK( RTSDevicePage, SelectHdl, ListBox*, pBox )
             FillValueBox( pKey );
         }
     }
+    m_pParent->SetDataModified( true );
     return 0;
 }
 
@@ -504,10 +506,12 @@ int SetupPrinterDriver(::psp::PrinterInfo& rJobData)
     int nRet = 0;
     ScopedVclPtrInstance< RTSDialog > aDialog(  rJobData, nullptr  );
 
+    // return 0 if cancel was pressed or if the data
+    // weren't modified, 1 otherwise
     if( aDialog->Execute() )
     {
         rJobData = aDialog->getSetup();
-        nRet = 1;
+        nRet = aDialog->GetDataModified() ? 1 : 0;
     }
 
     return nRet;

vcl/generic/print/prtsetup.hxx

@@ -56,6 +56,8 @@ class RTSDialog : public TabDialog
     // some resources
     OUString                m_aInvalidString;
 
+    bool mbDataModified;
+
     DECL_LINK( ActivatePage, TabControl* );
     DECL_LINK( ClickButton, Button* );
 
@@ -67,6 +69,9 @@ public:
     virtual void dispose() SAL_OVERRIDE;
 
     const ::psp::PrinterInfo& getSetup() const { return m_aJobData; }
+
+    void SetDataModified( bool bModified ) { mbDataModified = bModified; }
+    bool GetDataModified() const { return mbDataModified; }
 };
 
 class RTSPaperPage : public TabPage

vcl/source/gdi/print3.cxx

@@ -815,7 +815,12 @@ bool PrinterController::setupPrinter( vcl::Window* i_pParent )
 
         // reset paper size back to last configured size, not
         // whatever happens to be the current page
-        resetPaperToLastConfigured();
+        // (but only if the printer config has changed, otherwise
+        // don't override printer page auto-detection - tdf#91362)
+        if (!mpImplData->mxPrinter->IsDefPrinter())
+        {
+            resetPaperToLastConfigured();
+        }
 
         // call driver setup
         bRet = mpImplData->mxPrinter->Setup( i_pParent );
@@ -844,6 +849,8 @@ bool PrinterController::setupPrinter( vcl::Window* i_pParent )
             {
                 mpImplData->maPageCache.invalidate();
             }
+            // Settings have been modified (i.e. this printer is no longer default )
+            mpImplData->mxPrinter->SetDefPrinter( false );
         }
         else
         {