Change prototype of virtual Fl_Graphics_Driver::pango_font_description().

FL/Fl_Graphics_Driver.H

@@ -367,7 +367,7 @@ public:
   virtual void overlay_rect(int x, int y, int w , int h);
   virtual float override_scale();
   virtual void restore_scale(float);
-  virtual PangoFontDescription* pango_font_description(Fl_Font) { return NULL; }
+  virtual PangoFontDescription* pango_font_description() { return NULL; }
   virtual void antialias(int state);
   virtual int antialias();
   virtual void delete_bitmask(fl_uintptr_t bm);

src/drivers/Cairo/Fl_Cairo_Graphics_Driver.H

@@ -175,13 +175,14 @@ public:
   double width(const char *str, int n);
   double width(unsigned c);
   void text_extents(const char* txt, int n, int& dx, int& dy, int& w, int& h);
-  virtual PangoFontDescription* pango_font_description(Fl_Font /*fnum*/) {
+  virtual PangoFontDescription* pango_font_description() {
     return ((Fl_Cairo_Font_Descriptor*)font_descriptor())->fontref;
   }
   static void init_built_in_fonts();
   virtual Fl_Font set_fonts(const char* pattern_name);
   virtual const char *font_name(int num);
-  virtual void font_name(int num, const char *name);  virtual const char* get_font_name(Fl_Font fnum, int* ap);
+  virtual void font_name(int num, const char *name);
+  virtual const char* get_font_name(Fl_Font fnum, int* ap);
   virtual int get_font_sizes(Fl_Font fnum, int*& sizep);
   virtual Fl_Region XRectangleRegion(int x, int y, int w, int h);
   virtual void XDestroyRegion(Fl_Region r);

src/drivers/PostScript/Fl_PostScript.cxx

@@ -1511,7 +1511,7 @@ void Fl_PostScript_Graphics_Driver::transformed_draw(const char* str, int n, dou
     pango_context_ = pango_font_map_create_context(def_font_map); // 1.22
     pango_layout_ = pango_layout_new(pango_context_);
   }
-  PangoFontDescription *pfd = Fl_Graphics_Driver::default_driver().pango_font_description(font());
+  PangoFontDescription *pfd = Fl_Graphics_Driver::default_driver().pango_font_description();
   pango_layout_set_font_description(pango_layout_, pfd);
   int pwidth, pheight;
   cairo_save(cairo_);

src/drivers/Xlib/Fl_Xlib_Graphics_Driver.H

@@ -85,7 +85,7 @@ protected:
   static PangoFontMap *pfmap_;
   static PangoLayout *playout_;
 public:
-  virtual PangoFontDescription* pango_font_description(Fl_Font fnum) { return pfd_array[fnum]; }
+  virtual PangoFontDescription* pango_font_description() { return pfd_array[font()]; }
 private:
   static PangoFontDescription **pfd_array; // one array element for each Fl_Font
   static int pfd_array_length;