Add MouseMotionEvent. Fix MouseButtonEvent

MiniEngine_Event.cpp

@@ -1,5 +1,29 @@
 #include "MiniEngine_Event.h"
 
+namespace _MiniEngine_Internal
+{
+    MouseButton _mousebutton_event_enum_caster(int EventInt)
+    {
+        switch(EventInt)
+        {
+        case SDL_BUTTON_LEFT:
+            return MouseButton::Left;
+        case SDL_BUTTON_MIDDLE:
+            return MouseButton::Middle;
+        case SDL_BUTTON_RIGHT:
+            return MouseButton::Right;
+        case SDL_BUTTON_X1:
+            return MouseButton::X1;
+        case SDL_BUTTON_X2:
+            return MouseButton::X2;
+
+        /// If an error occurs, return Left by default.
+        default:
+            return MouseButton::Left;
+        }
+    }
+}/// End of namespace _MiniEngine_Internal
+
 void EventBase::update(const EventBase& ev)
 {
     e=ev.e;
@@ -17,6 +41,7 @@ void MouseButtonEvent::update(const EventBase& ev)
     EventBase::update(ev);
     x=e.button.x;
     y=e.button.y;
+    button=_MiniEngine_Internal::_mousebutton_event_enum_caster(e.button.button);
 }
 
 bool EventHandlerBase::event(const EventBase& ev)
@@ -37,17 +62,29 @@ bool EventHandlerBase::event(const EventBase& ev)
             return onMouseUp(eb);
         }
         break;
+    case SDL_MOUSEMOTION:
+        {
+            MouseMotionEvent eb;
+            eb.update(ev);
+            return onMouseMotion(eb);
+        }
+        break;
     }
 
     return false;
 }
 
-bool EventHandlerBase::onMouseDown()
+bool EventHandlerBase::onMouseDown(const MouseButtonEvent& ev)
 {
     return false;
 }
 
-bool EventHandlerBase::onMouseUp()
+bool EventHandlerBase::onMouseUp(const MouseButtonEvent& ev)
+{
+    return false;
+}
+
+bool EventHandlerBase::onMouseMotion(const MouseMotionEvent& ev)
 {
     return false;
 }

MiniEngine_Event.h

@@ -16,11 +16,13 @@ public:
     void update(const EventBase&);
 };
 
+enum class MouseButton { Left, Middle, Right, X1, X2 };
+
 class MouseButtonEvent : public EventBase
 {
 public:
     int x,y;
-    int button;
+    MouseButton button;
     void update(const EventBase&);
 };
 
@@ -31,4 +33,5 @@ public:
 protected:
     virtual bool onMouseDown(const MouseButtonEvent&);
     virtual bool onMouseUp(const MouseButtonEvent&);
+    virtual bool onMouseMotion(const MouseMotionEvent&);
 };