Added several new keys to sf::Keyboard. Separated 'normal' and numpad return.

include/SFML/Window/Keyboard.hpp

@@ -133,6 +133,12 @@ public:
         Numpad7,      ///< The numpad 7 key
         Numpad8,      ///< The numpad 8 key
         Numpad9,      ///< The numpad 9 key
+        NumpadReturn, ///< The numpad Return key.
+        NumpadComma,  ///< The numpad Comma key.
+        NumLock,      ///< The Numlock key.
+        CapsLock,     ///< The Caps Lock key.
+        ScrollLock,   ///< The Scroll Lock key.
+        PrintScreen,  ///< The Print Screen key.
         F1,           ///< The F1 key
         F2,           ///< The F2 key
         F3,           ///< The F3 key

src/SFML/Window/Unix/WindowImplX11.cpp

@@ -247,6 +247,8 @@ namespace
             case XK_Control_L:        return sf::Keyboard::LControl;
             case XK_Control_R:        return sf::Keyboard::RControl;
             case XK_Alt_L:            return sf::Keyboard::LAlt;
+            case XK_ISO_Level3_Shift:
+            case XK_Mode_switch:
             case XK_Alt_R:            return sf::Keyboard::RAlt;
             case XK_Super_L:          return sf::Keyboard::LSystem;
             case XK_Super_R:          return sf::Keyboard::RSystem;
@@ -265,7 +267,7 @@ namespace
             case XK_grave:            return sf::Keyboard::Tilde;
             case XK_space:            return sf::Keyboard::Space;
             case XK_Return:           return sf::Keyboard::Return;
-            case XK_KP_Enter:     return sf::Keyboard::Return;
+            case XK_KP_Enter:         return sf::Keyboard::NumpadReturn;
             case XK_BackSpace:        return sf::Keyboard::BackSpace;
             case XK_Tab:              return sf::Keyboard::Tab;
             case XK_Prior:            return sf::Keyboard::PageUp;
@@ -344,6 +346,11 @@ namespace
             case XK_7:                return sf::Keyboard::Num7;
             case XK_8:                return sf::Keyboard::Num8;
             case XK_9:                return sf::Keyboard::Num9;
+            case XK_KP_Separator:     return sf::Keyboard::NumpadComma;
+            case XK_Num_Lock:         return sf::Keyboard::NumLock;
+            case XK_Caps_Lock:        return sf::Keyboard::CapsLock;
+            case XK_Scroll_Lock:      return sf::Keyboard::ScrollLock;
+            case XK_Print:            return sf::Keyboard::PrintScreen;
         }
 
         return sf::Keyboard::Unknown;
@@ -1757,17 +1764,23 @@ bool WindowImplX11::processEvent(XEvent windowEvent)
         // Key down event
         case KeyPress:
         {
-            // Get the keysym of the key that has been pressed
-            static XComposeStatus keyboard;
-            char buffer[32];
-            KeySym symbol;
-            XLookupString(&windowEvent.xkey, buffer, sizeof(buffer), &symbol, &keyboard);
+            Keyboard::Key key = Keyboard::Unknown;
+
+            // Try each KeySym index (modifier group) until we get a match
+            for (int i = 0; i < 4; ++i)
+            {
+                // Get the SFML keyboard code from the keysym of the key that has been pressed
+                key = keysymToSF(XLookupKeysym(&windowEvent.xkey, i));
+
+                if (key != Keyboard::Unknown)
+                    break;
+            }
 
             // Fill the event parameters
             // TODO: if modifiers are wrong, use XGetModifierMapping to retrieve the actual modifiers mapping
             Event event;
             event.type        = Event::KeyPressed;
-            event.key.code    = keysymToSF(symbol);
+            event.key.code    = key;
             event.key.alt     = windowEvent.xkey.state & Mod1Mask;
             event.key.control = windowEvent.xkey.state & ControlMask;
             event.key.shift   = windowEvent.xkey.state & ShiftMask;
@@ -1826,15 +1839,22 @@ bool WindowImplX11::processEvent(XEvent windowEvent)
         // Key up event
         case KeyRelease:
         {
-            // Get the keysym of the key that has been pressed
-            char buffer[32];
-            KeySym symbol;
-            XLookupString(&windowEvent.xkey, buffer, 32, &symbol, NULL);
+            Keyboard::Key key = Keyboard::Unknown;
+
+            // Try each KeySym index (modifier group) until we get a match
+            for (int i = 0; i < 4; ++i)
+            {
+                // Get the SFML keyboard code from the keysym of the key that has been released
+                key = keysymToSF(XLookupKeysym(&windowEvent.xkey, i));
+
+                if (key != Keyboard::Unknown)
+                    break;
+            }
 
             // Fill the event parameters
             Event event;
             event.type        = Event::KeyReleased;
-            event.key.code    = keysymToSF(symbol);
+            event.key.code    = key;
             event.key.alt     = windowEvent.xkey.state & Mod1Mask;
             event.key.control = windowEvent.xkey.state & ControlMask;
             event.key.shift   = windowEvent.xkey.state & ShiftMask;