Add Q_INTERFACES( Okular::Generator ) to all plugins

This seems to be required with KPluginFactory and Qt5 since without it
KPluginFactory::create<Okular::Generator>() always returns null.

For some reason this requires a complete rebuild before generatorstest
passes.

REVIEW: 123466

generators/chm/generator_chm.h

@@ -31,6 +31,7 @@ class Node;
 class CHMGenerator : public Okular::Generator
 {
     Q_OBJECT
+    Q_INTERFACES( Okular::Generator )
     public:
         CHMGenerator( QObject *parent, const QVariantList &args );
         ~CHMGenerator();

generators/comicbook/generator_comicbook.h

@@ -17,6 +17,7 @@
 class ComicBookGenerator : public Okular::Generator
 {
     Q_OBJECT
+    Q_INTERFACES( Okular::Generator )
 
     public:
         ComicBookGenerator( QObject *parent, const QVariantList &args );

generators/djvu/generator_djvu.h

@@ -24,6 +24,7 @@ class ObjectRect;
 class DjVuGenerator : public Okular::Generator
 {
     Q_OBJECT
+    Q_INTERFACES( Okular::Generator )
     public:
         DjVuGenerator( QObject *parent, const QVariantList &args );
         ~DjVuGenerator();

generators/dvi/generator_dvi.h

@@ -26,6 +26,7 @@ class ObjectRect;
 class DviGenerator : public Okular::Generator
 {
     Q_OBJECT
+    Q_INTERFACES( Okular::Generator )
     public:
         DviGenerator( QObject *parent, const QVariantList &args );
         bool loadDocument( const QString & fileName, QVector< Okular::Page * > & pagesVector );

generators/epub/generator_epub.h

@@ -14,6 +14,7 @@
 class EPubGenerator : public Okular::TextDocumentGenerator
 {
     Q_OBJECT
+    Q_INTERFACES( Okular::Generator )
  public:
   EPubGenerator( QObject *parent, const QVariantList &args );
   ~EPubGenerator();

generators/fax/generator_fax.h

@@ -19,6 +19,7 @@
 class FaxGenerator : public Okular::Generator
 {
     Q_OBJECT
+    Q_INTERFACES( Okular::Generator )
 
     public:
         FaxGenerator( QObject *parent, const QVariantList &args );

generators/fictionbook/generator_fb.h

@@ -14,6 +14,9 @@
 
 class FictionBookGenerator : public Okular::TextDocumentGenerator
 {
+    Q_OBJECT
+    Q_INTERFACES( Okular::Generator )
+
     public:
         FictionBookGenerator( QObject *parent, const QVariantList &args );
 

generators/kimgio/generator_kimgio.h

@@ -17,6 +17,9 @@
 
 class KIMGIOGenerator : public Okular::Generator
 {
+    Q_OBJECT
+    Q_INTERFACES( Okular::Generator )
+
     public:
         KIMGIOGenerator( QObject *parent, const QVariantList &args );
         virtual ~KIMGIOGenerator();

generators/mobipocket/generator_mobi.h

@@ -12,6 +12,9 @@
 
 class MobiGenerator : public Okular::TextDocumentGenerator
 {
+ Q_OBJECT
+ Q_INTERFACES( Okular::Generator )
+
  public:
   MobiGenerator( QObject *parent, const QVariantList &args );
   ~MobiGenerator() {}

generators/ooo/generator_ooo.h

@@ -14,6 +14,8 @@
 
 class KOOOGenerator : public Okular::TextDocumentGenerator
 {
+  Q_OBJECT
+  Q_INTERFACES( Okular::Generator )
   public:
     KOOOGenerator( QObject *parent, const QVariantList &args );
 

generators/plucker/generator_plucker.h

@@ -22,6 +22,7 @@ class QTextDocument;
 class PluckerGenerator : public Okular::Generator
 {
     Q_OBJECT
+    Q_INTERFACES( Okular::Generator )
 
     public:
         PluckerGenerator( QObject *parent, const QVariantList &args );

generators/poppler/generator_pdf.h

@@ -48,6 +48,7 @@ class PopplerAnnotationProxy;
 class PDFGenerator : public Okular::Generator, public Okular::ConfigInterface, public Okular::PrintInterface, public Okular::SaveInterface
 {
     Q_OBJECT
+    Q_INTERFACES( Okular::Generator )
     Q_INTERFACES( Okular::ConfigInterface )
     Q_INTERFACES( Okular::PrintInterface )
     Q_INTERFACES( Okular::SaveInterface )

generators/spectre/generator_ghostview.h

@@ -18,6 +18,7 @@
 class GSGenerator : public Okular::Generator, public Okular::ConfigInterface
 {
     Q_OBJECT
+    Q_INTERFACES( Okular::Generator )
     Q_INTERFACES( Okular::ConfigInterface )
 
     public:

generators/tiff/generator_tiff.h

@@ -18,6 +18,7 @@
 class TIFFGenerator : public Okular::Generator
 {
     Q_OBJECT
+    Q_INTERFACES( Okular::Generator )
     public:
         TIFFGenerator( QObject *parent, const QVariantList &args );
         virtual ~TIFFGenerator();

generators/txt/generator_txt.h

@@ -17,6 +17,7 @@
 class TxtGenerator : public Okular::TextDocumentGenerator
 {
     Q_OBJECT
+    Q_INTERFACES( Okular::Generator )
 
 public:
     TxtGenerator(QObject *parent, const QVariantList &args);

generators/xps/generator_xps.h

@@ -301,6 +301,7 @@ private:
 class XpsGenerator : public Okular::Generator
 {
     Q_OBJECT
+    Q_INTERFACES( Okular::Generator )
     public:
         XpsGenerator( QObject *parent, const QVariantList &args );
         virtual ~XpsGenerator();