Move platform-dependent implementations of Fl::clipboard_contains() to the Fl_System_Driver class

git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3-porting@11616 ea41ed52-d2ee-0310-a9c1-e6b18d33e121

FL/Fl_System_Driver.H

@@ -198,6 +198,8 @@ public:
   virtual void copy(const char *stuff, int len, int clipboard, const char *type) {}
   // implement to support paste-from-clipboard
   virtual void paste(Fl_Widget &receiver, int clipboard, const char *type) {}
+  // implement to support paste-from-clipboard
+  virtual int clipboard_contains(const char *type) {return 0;}
 };
 
 #endif // FL_SYSTEM_DRIVER_H

src/Fl.cxx

@@ -1938,6 +1938,11 @@ void Fl::copy(const char *stuff, int len, int clipboard, const char *type) {
   Fl::system_driver()->copy(stuff, len, clipboard, type);
 }
 
+int Fl::clipboard_contains(const char *type)
+{
+  return Fl::system_driver()->clipboard_contains(type);
+}
+
 //
 // End of "$Id$".
 //

src/Fl_cocoa.mm

@@ -3510,7 +3510,7 @@ void Fl_Darwin_System_Driver::paste(Fl_Widget &receiver, int clipboard, const ch
   receiver.handle(FL_PASTE);
 }
 
-int Fl::clipboard_contains(const char *type) {
+int Fl_Darwin_System_Driver::clipboard_contains(const char *type) {
   NSString *found = nil;
   if (strcmp(type, Fl::clipboard_plain_text) == 0) {
     found = [[NSPasteboard generalPasteboard] availableTypeFromArray:[NSArray arrayWithObjects:UTF8_pasteboard_type, @"public.utf16-plain-text", @"com.apple.traditional-mac-plain-text", nil]];

src/Fl_win32.cxx

@@ -822,7 +822,7 @@ void Fl_WinAPI_System_Driver::paste(Fl_Widget &receiver, int clipboard, const ch
     }
 }
 
-int Fl::clipboard_contains(const char *type)
+int Fl_WinAPI_System_Driver::clipboard_contains(const char *type)
 {
   int retval = 0;
   if (!OpenClipboard(NULL)) return 0;

src/Fl_x.cxx

@@ -828,7 +828,7 @@ void Fl_X11_System_Driver::paste(Fl_Widget &receiver, int clipboard, const char
                     fl_xid(Fl::first_window()), fl_event_time);
 }
 
-int Fl::clipboard_contains(const char *type)
+int Fl_X11_System_Driver::clipboard_contains(const char *type)
 {
   XEvent event;
   Atom actual; int format; unsigned long count, remaining, i = 0;

src/drivers/Darwin/Fl_Darwin_System_Driver.H

@@ -71,6 +71,7 @@ public:
   virtual const char *filename_name(const char *buf);
   virtual void copy(const char *stuff, int len, int clipboard, const char *type);
   virtual void paste(Fl_Widget &receiver, int clipboard, const char *type);
+  virtual int clipboard_contains(const char *type);
 };
 
 #endif // FL_DARWIN_SYSTEM_DRIVER_H

src/drivers/WinAPI/Fl_WinAPI_System_Driver.H

@@ -108,6 +108,8 @@ public:
   virtual void copy(const char *stuff, int len, int clipboard, const char *type);
   // this one is implemented in Fl_win32.cxx
   virtual void paste(Fl_Widget &receiver, int clipboard, const char *type);
+  // this one is implemented in Fl_win32.cxx
+  virtual int clipboard_contains(const char *type);
 };
 
 #endif // FL_WINAPI_SYSTEM_DRIVER_H

src/drivers/X11/Fl_X11_System_Driver.H

@@ -51,6 +51,8 @@ public:
   virtual void copy(const char *stuff, int len, int clipboard, const char *type);
   // this one is in Fl_x.cxx
   virtual void paste(Fl_Widget &receiver, int clipboard, const char *type);
+  // this one is in Fl_x.cxx
+  virtual int clipboard_contains(const char *type);
 };
 
 #endif /* FL_X11_SYSTEM_DRIVER_H */