2 files changed, 18 insertions, 9 deletions
diff --git a/backends/graphics/sdl/sdl-graphics.cpp b/backends/graphics/sdl/sdl-graphics.cpp
index 417f4faf54..40b97b267b 100644
--- a/backends/graphics/sdl/sdl-graphics.cpp
+++ b/backends/graphics/sdl/sdl-graphics.cpp
@@ -31,10 +31,10 @@ SdlGraphicsManager::SdlGraphicsManager(SdlEventSource *source)
 SdlGraphicsManager::~SdlGraphicsManager() {
 }
 
-void SdlGraphicsManager::initEventSource() {
+void SdlGraphicsManager::activateManager() {
 	_eventSource->setGraphicsManager(this);
 }
 
-void SdlGraphicsManager::deinitEventSource() {
+void SdlGraphicsManager::deactivateManager() {
 	_eventSource->setGraphicsManager(0);
 }
diff --git a/backends/graphics/sdl/sdl-graphics.h b/backends/graphics/sdl/sdl-graphics.h
index 4d4338af16..3791961cfa 100644
--- a/backends/graphics/sdl/sdl-graphics.h
+++ b/backends/graphics/sdl/sdl-graphics.h
@@ -23,6 +23,8 @@
 #ifndef BACKENDS_GRAPHICS_SDL_SDLGRAPHICS_H
 #define BACKENDS_GRAPHICS_SDL_SDLGRAPHICS_H
 
+#include "backends/graphics/graphics.h"
+
 #include "common/rect.h"
 
 class SdlEventSource;
@@ -31,16 +33,26 @@ class SdlEventSource;
  * Base class for a SDL based graphics manager.
  *
  * It features a few extra a few extra features required by SdlEventSource.
- * FIXME/HACK:
- * Note it does not inherit from GraphicsManager to avoid a diamond inheritance
- * in the current OpenGLSdlGraphicsManager.
  */
-class SdlGraphicsManager {
+class SdlGraphicsManager : virtual public GraphicsManager {
 public:
 	SdlGraphicsManager(SdlEventSource *source);
 	virtual ~SdlGraphicsManager();
 
 	/**
+	 * Makes this graphics manager active. That means it should be ready to
+	 * process inputs now. However, even without being active it should be
+	 * able to query the supported modes and other bits.
+	 */
+	virtual void activateManager();
+
+	/**
+	 * Makes this graphics manager inactive. This should allow another
+	 * graphics manager to become active again.
+	 */
+	virtual void deactivateManager();
+
+	/**
 	 * Notify the graphics manager that the graphics needs to be redrawn, since
 	 * the application window was modified.
 	 *
@@ -80,9 +92,6 @@ public:
 	virtual void notifyMousePos(Common::Point mouse) = 0;
 
 protected:
-	void initEventSource();
-	void deinitEventSource();
-
 	SdlEventSource *_eventSource;
 };