Replace static void Fl_Window_Driver::default_icons() by virtual Fl_Screen_Driver::default_icons()

src/Fl_Screen_Driver.H

@@ -188,6 +188,8 @@ public:
   /* Number of pixels per drawing unit for the display.
      The default implementation may be enough. */
   virtual float retina_factor() { return 1; }
+  // supports Fl_Window::default_icons()
+  virtual void default_icons(const Fl_RGB_Image *icons[], int count);
 };
 
 

src/Fl_Screen_Driver.cxx

@@ -487,6 +487,8 @@ int Fl_Screen_Driver::parse_color(const char* p, uchar& r, uchar& g, uchar& b)
   return 1;
 }
 
+void Fl_Screen_Driver::default_icons(const Fl_RGB_Image *icons[], int count) {}
+
 /**
  \}
  \endcond

src/Fl_Window.cxx

@@ -25,6 +25,7 @@
 #include <FL/Fl.H>
 #include <FL/platform.H>
 #include "Fl_Window_Driver.H"
+#include "Fl_Screen_Driver.H"
 #include <FL/Fl_RGB_Image.H>
 #include <FL/Fl_Window.H>
 #include <FL/Fl_Tooltip.H>
@@ -317,7 +318,8 @@ void Fl_Window::default_icon(const Fl_RGB_Image *icon) {
   \see Fl_Window::icons(const Fl_RGB_Image *[], int)
  */
 void Fl_Window::default_icons(const Fl_RGB_Image *icons[], int count) {
-  Fl_Window_Driver::default_icons(icons, count);
+  Fl::screen_driver()->open_display();
+  Fl::screen_driver()->default_icons(icons, count);
 }
 
 /** Sets or resets a single window icon.

src/Fl_Window_Driver.H

@@ -181,8 +181,6 @@ public:
   virtual const void *icon() const {return NULL;}
   virtual void icon(const void * ic) {}
   virtual void free_icons() {}
-  // each platform implements this its own way
-  static void default_icons(const Fl_RGB_Image *icons[], int count);
 
   // --- window printing/drawing helper
   virtual void capture_titlebar_and_borders(Fl_RGB_Image*& top, Fl_RGB_Image*& left,

src/Fl_cocoa.mm

@@ -151,25 +151,6 @@ void fl_set_status(int x, int y, int w, int h)
 {
 }
 
-/**
- * @cond DriverDev
- * @addtogroup DriverDeveloper
- * @{
- */
-
-/**
- * Set the default icon for the window decoration.
- *
- * @todo This method should probably be virtual and should be overriden for
- *      a give targte platform. This implementation however lives in Fl_Cocoa.m
- *      which is a Mac specific file.
- */
-void Fl_Window_Driver::default_icons(const Fl_RGB_Image *icons[], int count) {}
-
-/**
- * @}
- * @endcond
- */
 
 /*
  * Mac keyboard lookup table

src/Fl_win32.cxx

@@ -2321,7 +2321,7 @@ static const Fl_RGB_Image *find_best_icon(int ideal_width, const Fl_RGB_Image *i
   return best;
 }
 
-void Fl_Window_Driver::default_icons(const Fl_RGB_Image *icons[], int count) {
+void Fl_WinAPI_Screen_Driver::default_icons(const Fl_RGB_Image *icons[], int count) {
   const Fl_RGB_Image *best_big, *best_small;
 
   if (default_big_icon != NULL)

src/Fl_x.cxx

@@ -2799,7 +2799,7 @@ static void icons_to_property(const Fl_RGB_Image *icons[], int count,
   }
 }
 
-void Fl_Window_Driver::default_icons(const Fl_RGB_Image *icons[], int count) {
+void Fl_X11_Screen_Driver::default_icons(const Fl_RGB_Image *icons[], int count) {
   if (default_net_wm_icons) {
     delete [] default_net_wm_icons;
     default_net_wm_icons = 0L;

src/drivers/Android/Fl_Android_Window_Driver.cxx

@@ -38,8 +38,6 @@ Fl_Window_Driver *Fl_Window_Driver::newWindowDriver(Fl_Window *w)
   return new Fl_Android_Window_Driver(w);
 }
 
-void Fl_Window_Driver::default_icons(Fl_RGB_Image const**, int) {
-}
 
 Window fl_window = 0;
 

src/drivers/PicoSDL/Fl_PicoSDL_Window_Driver.cxx

@@ -31,10 +31,6 @@ Fl_Window_Driver *Fl_Window_Driver::newWindowDriver(Fl_Window *win)
 }
 
 
-void Fl_Window_Driver::default_icons(Fl_RGB_Image const**, int) {
-}
-
-
 Fl_PicoSDL_Window_Driver::Fl_PicoSDL_Window_Driver(Fl_Window *win)
 : Fl_Pico_Window_Driver(win)
 {

src/drivers/WinAPI/Fl_WinAPI_Screen_Driver.H

@@ -92,6 +92,7 @@ public:
     scale_of_screen[n] = f;
   }
   virtual void desktop_scale_factor();
+  virtual void default_icons(const Fl_RGB_Image *icons[], int count);
 };
 
 

src/drivers/X11/Fl_X11_Screen_Driver.H

@@ -103,6 +103,7 @@ public:
   virtual void close_display();
   // --- compute dimensions of an Fl_Offscreen
   virtual void offscreen_size(Fl_Offscreen o, int &width, int &height);
+  virtual void default_icons(const Fl_RGB_Image *icons[], int count);
 };