From 06f6819d636096b5d11558c327914f4d11428a8f Mon Sep 17 00:00:00 2001
From: Azaezel <quillus@hotmail.com>
Date: Wed, 29 Jul 2015 11:24:48 -0500
Subject: [PATCH] sdl2 mouse wheel scrolling rev1

---
 Engine/source/windowManager/sdl/sdlWindow.cpp    | 10 ++++++++++
 Engine/source/windowManager/sdl/sdlWindow.h      |  1 +
 Engine/source/windowManager/sdl/sdlWindowMgr.cpp |  8 ++++++++
 3 files changed, 19 insertions(+)

diff --git a/Engine/source/windowManager/sdl/sdlWindow.cpp b/Engine/source/windowManager/sdl/sdlWindow.cpp
index 9046a7651..a9f8140e8 100644
--- a/Engine/source/windowManager/sdl/sdlWindow.cpp
+++ b/Engine/source/windowManager/sdl/sdlWindow.cpp
@@ -432,6 +432,11 @@ void PlatformWindowSDL::_triggerMouseLocationNotify(const SDL_Event& evt)
       mouseEvent.trigger(getWindowId(), 0, evt.motion.xrel, evt.motion.yrel, true);
 }
 
+void PlatformWindowSDL::_triggerMouseWheelNotify(const SDL_Event& evt)
+{
+   mouseEvent.trigger(getWindowId(), 0, evt.wheel.y, evt.wheel.y, false);
+}
+
 void PlatformWindowSDL::_triggerMouseButtonNotify(const SDL_Event& event)
 {
    S32 action = (event.type == SDL_MOUSEBUTTONDOWN) ? SI_MAKE : SI_BREAK;
@@ -536,6 +541,11 @@ void PlatformWindowSDL::_processSDLEvent(SDL_Event &evt)
          break;
       }
 
+      case SDL_MOUSEWHEEL:
+      {
+         _triggerMouseWheelNotify(evt);
+         break;
+      }
       case SDL_MOUSEBUTTONDOWN:
       case SDL_MOUSEBUTTONUP:
       {
diff --git a/Engine/source/windowManager/sdl/sdlWindow.h b/Engine/source/windowManager/sdl/sdlWindow.h
index 5c809da07..75abdee4f 100644
--- a/Engine/source/windowManager/sdl/sdlWindow.h
+++ b/Engine/source/windowManager/sdl/sdlWindow.h
@@ -92,6 +92,7 @@ private:
    void _processSDLEvent(SDL_Event &evt);
    void _triggerMouseLocationNotify(const SDL_Event& evt);
    void _triggerMouseButtonNotify(const SDL_Event& event);
+   void _triggerMouseWheelNotify(const SDL_Event& event);
    void _triggerKeyNotify(const SDL_Event& event);
    void _triggerTextNotify(const SDL_Event& event);
 
diff --git a/Engine/source/windowManager/sdl/sdlWindowMgr.cpp b/Engine/source/windowManager/sdl/sdlWindowMgr.cpp
index 788981dac..014411353 100644
--- a/Engine/source/windowManager/sdl/sdlWindowMgr.cpp
+++ b/Engine/source/windowManager/sdl/sdlWindowMgr.cpp
@@ -222,6 +222,14 @@ void PlatformWindowManagerSDL::_process()
             break;
          }
 
+         case SDL_MOUSEWHEEL:
+         {
+            PlatformWindowSDL *window = mWindowMap[evt.wheel.windowID];
+            if (window)
+               window->_processSDLEvent(evt);
+            break;
+         }
+
          case SDL_MOUSEBUTTONDOWN:
          case SDL_MOUSEBUTTONUP:
          {