Diff: kbd_mgr/KeyboardStateHandler.h

Revision:

3:1310c57aca77

Parent:

2:eb4cc53ff33d

--- a/kbd_mgr/KeyboardStateHandler.h	Sun Jan 23 23:15:36 2011 +0000
+++ b/kbd_mgr/KeyboardStateHandler.h	Thu Feb 03 22:01:57 2011 +0000
@@ -1,19 +1,53 @@
-#ifndef KEYBOARD_STATE_HANDLER_H_
-#define KEYBOARD_STATE_HANDLER_H_
-
-#include "kbd_mgr/KeyboardState.h"
-
-namespace kbd_mgr {
-
-/**
- * @brief Interface used to report a keyboard state.
- */
-class KeyboardStateHandler {
-public:
-    virtual void operator()(const KeyboardState &newState) = 0;
-    virtual ~KeyboardStateHandler() { }
-};
-
-} // kbd_mgr
-
-#endif // KEYBOARD_STATE_HANDLER_H_
+#ifndef KEYBOARD_STATE_HANDLER_H_
+#define KEYBOARD_STATE_HANDLER_H_
+
+#include "kbd_mgr/KeyboardState.h"
+
+namespace kbd_mgr {
+
+/**
+ * @brief Interface used to report a keyboard state.
+ */
+class KeyboardStateHandler {
+public:
+    virtual void handleState(const KeyboardState &newState) = 0;
+    virtual ~KeyboardStateHandler() { }
+};
+
+template <class T>
+class MemberKeyboardStateHandler : public KeyboardStateHandler {
+public:
+    typedef void (T::*MemberFunction)(const KeyboardState &);
+    
+    MemberKeyboardStateHandler(T *obj, MemberFunction fn) :
+        object(obj), func(fn)
+    { }
+    
+    virtual void handleState(const KeyboardState &newState) {
+        (object->*func)(newState);
+    }
+    
+private:
+    T *object;
+    MemberFunction func;
+};
+
+class FunctionKeyboardStateHandler : public KeyboardStateHandler {
+public:
+    typedef void (*HandlerFunction)(const KeyboardState &);
+
+    FunctionKeyboardStateHandler(HandlerFunction fn) :
+        func(fn)
+    { }
+
+    virtual void handleState(const KeyboardState &newState) {
+        func(newState);
+    }
+        
+private:
+    HandlerFunction func;
+};
+
+} // kbd_mgr
+
+#endif // KEYBOARD_STATE_HANDLER_H_