Add Graphics#restore_window

Requested by matias1lol.

binding-mri/graphics-binding.cpp

@@ -218,6 +218,15 @@ RB_METHOD(graphicsMaximizeWindow)
 	return Qnil;
 }
 
+RB_METHOD(graphicsRestoreWindow)
+{
+	RB_UNUSED_PARAM;
+
+	shState->eThread().requestWindowRestore();
+
+	return Qnil;
+}
+
 DEF_GRA_PROP_I(FrameRate)
 DEF_GRA_PROP_I(FrameCount)
 DEF_GRA_PROP_I(Brightness)
@@ -278,4 +287,5 @@ void graphicsBindingInit()
 
 	_rb_define_module_function(module, "resize_window", graphicsResizeWindow);
 	_rb_define_module_function(module, "maximize_window", graphicsMaximizeWindow);
+	_rb_define_module_function(module, "restore_window", graphicsRestoreWindow);
 }

doc/extension_doc.md

@@ -13,6 +13,10 @@ Resizes the game window to width x height. If `recenter` is **true**, also cente
 
 Maximizes the game window, ignoring the `winResizable` config option.
 
+## Graphics.restore_window()
+
+Restores the game window from a maximized or minimized state.
+
 ## Bitmap.write_to_png(filename)
 filename: String  
 returns: self  

src/eventthread.cpp

@@ -81,6 +81,7 @@ enum
 	REQUEST_SETFULLSCREEN = 0,
 	REQUEST_WINRESIZE,
 	REQUEST_WINMAXIMIZE,
+	REQUEST_WINRESTORE,
 	REQUEST_MESSAGEBOX,
 	REQUEST_SETCURSORVISIBLE,
 
@@ -464,6 +465,10 @@ void EventThread::process(RGSSThreadData &rtData)
 				SDL_MaximizeWindow(win);
 				break;
 
+			case REQUEST_WINRESTORE :
+				SDL_RestoreWindow(win);
+				break;
+
 			case UPDATE_FPS :
 				if (rtData.config.printFPS)
 					Debug() << "FPS:" << event.user.code;
@@ -634,6 +639,13 @@ void EventThread::requestWindowMaximize()
 	SDL_PushEvent(&event);
 }
 
+void EventThread::requestWindowRestore()
+{
+	SDL_Event event;
+	event.type = usrIdStart + REQUEST_WINRESTORE;
+	SDL_PushEvent(&event);
+}
+
 void EventThread::requestShowCursor(bool mode)
 {
 	SDL_Event event;

src/eventthread.h

@@ -90,6 +90,7 @@ public:
 	void requestFullscreenMode(bool mode);
 	void requestWindowResize(int width, int height, bool recenter = false);
 	void requestWindowMaximize();
+	void requestWindowRestore();
 	void requestShowCursor(bool mode);
 
 	void requestTerminate();