add more Mac function keys

panda/src/osxdisplay/osxGraphicsWindow.cxx

@@ -1155,7 +1155,7 @@ void handleWindowDMEvent (void *userData, short theMessage, void *notifyData)
 OSStatus osxGraphicsWindow::handleKeyInput (EventHandlerCallRef myHandler, EventRef event, Boolean keyDown) {
   OSStatus result = eventNotHandledErr;
 
-  if (osxdisplay_cat.is_spam()) {
+  if (osxdisplay_cat.is_debug()) {
     UInt32 keyCode;
     GetEventParameter (event, kEventParamKeyCode, typeUInt32, NULL, sizeof(UInt32), NULL, &keyCode);
 
@@ -1410,11 +1410,15 @@ void osxGraphicsWindow::SystemSetWindowForground(bool forground)
      case  97:  nk = KeyboardButton::f6();				  break;
      case  98:  nk = KeyboardButton::f7();				  break;
      case 100:  nk = KeyboardButton::f8();				  break;
-         //	case    :  nk = KeyboardButton::f9();				  break;  // seem to be used by the systems..
-         //	case    :  nk = KeyboardButton::f10();				  break;
-         //	case    :  nk = KeyboardButton::f11();				  break;
-         //	case    :  nk = KeyboardButton::f12();				  break;
-         //	case 105:  nk = KeyboardButton::f13();				  break;  // panda does not have a 13
+     case 101:  nk = KeyboardButton::f9();				  break;
+     case 109:  nk = KeyboardButton::f10();				  break;
+     case 103:  nk = KeyboardButton::f11();				  break;
+     case 111:  nk = KeyboardButton::f12();				  break;
+
+     case 105:  nk = KeyboardButton::f13();				  break;
+     case 107:  nk = KeyboardButton::f14();				  break;
+     case 113:  nk = KeyboardButton::f15();				  break;
+     case 106:  nk = KeyboardButton::f16();				  break;
 
          // shiftable chartablet 
      case  50:  nk = KeyboardButton::ascii_key('`');				  break;

panda/src/putil/keyboardButton.cxx

@@ -72,6 +72,10 @@ DEFINE_KEYBD_BUTTON_HANDLE(f9)
 DEFINE_KEYBD_BUTTON_HANDLE(f10)
 DEFINE_KEYBD_BUTTON_HANDLE(f11)
 DEFINE_KEYBD_BUTTON_HANDLE(f12)
+DEFINE_KEYBD_BUTTON_HANDLE(f13)
+DEFINE_KEYBD_BUTTON_HANDLE(f14)
+DEFINE_KEYBD_BUTTON_HANDLE(f15)
+DEFINE_KEYBD_BUTTON_HANDLE(f16)
 DEFINE_KEYBD_BUTTON_HANDLE(left)
 DEFINE_KEYBD_BUTTON_HANDLE(right)
 DEFINE_KEYBD_BUTTON_HANDLE(up)
@@ -134,6 +138,11 @@ init_keyboard_buttons() {
   ButtonRegistry::ptr()->register_button(_f11, "f11");
   ButtonRegistry::ptr()->register_button(_f12, "f12");
 
+  ButtonRegistry::ptr()->register_button(_f13, "f13");
+  ButtonRegistry::ptr()->register_button(_f14, "f14");
+  ButtonRegistry::ptr()->register_button(_f15, "f15");
+  ButtonRegistry::ptr()->register_button(_f16, "f16");
+
   ButtonRegistry::ptr()->register_button(_left, "arrow_left");
   ButtonRegistry::ptr()->register_button(_right, "arrow_right");
   ButtonRegistry::ptr()->register_button(_up, "arrow_up");  // cannot name this 'up' since it conflicts with key-release name 'up'

panda/src/putil/keyboardButton.h

@@ -53,6 +53,12 @@ PUBLISHED:
   static ButtonHandle f11();
   static ButtonHandle f12();
 
+  // PC keyboards don't have these four buttons, but Macs do.
+  static ButtonHandle f13();
+  static ButtonHandle f14();
+  static ButtonHandle f15();
+  static ButtonHandle f16();
+
   static ButtonHandle left();
   static ButtonHandle right();
   static ButtonHandle up();