Use Okular's own print preview dialog for all documents

part.cpp

@@ -68,8 +68,6 @@
 #include <KXMLGUIClient>
 #include <KXMLGUIFactory>
 
-#include <KPrintPreview>
-
 #if 0
 #include <knewstuff2/engine.h>
 #endif
@@ -2453,19 +2451,23 @@ void Part::slotPrintPreview()
     if (m_document->pages() == 0) return;
 
     QPrinter printer;
+    QString tempFilePattern;
 
-    // Native printing supports KPrintPreview, Postscript needs to use FilePrinterPreview
+    if ( m_document->printingSupport() == Okular::Document::PostscriptPrinting )
-    if ( m_document->printingSupport() == Okular::Document::NativePrinting )
     {
-        KPrintPreview previewdlg( &printer, widget() );
+        tempFilePattern = (QDir::tempPath() + QLatin1String("/okular_XXXXXX.ps"));
-        setupPrint( printer );
+    }
-        doPrint( printer );
+    else if ( m_document->printingSupport() == Okular::Document::NativePrinting )
-        previewdlg.exec();
+    {
+        tempFilePattern = (QDir::tempPath() + QLatin1String("/okular_XXXXXX.pdf"));
     }
     else
     {
+        return;
+    }
+
     // Generate a temp filename for Print to File, then release the file so generator can write to it
-        QTemporaryFile tf(QDir::tempPath() + QLatin1String("/okular_XXXXXX.ps"));
+    QTemporaryFile tf(tempFilePattern);
     tf.setAutoRemove( true );
     tf.open();
     printer.setOutputFileName( tf.fileName() );
@@ -2477,7 +2479,6 @@ void Part::slotPrintPreview()
         Okular::FilePrinterPreview previewdlg( printer.outputFileName(), widget() );
         previewdlg.exec();
     }
-    }
 }