Put LeaveGame longjmp back, but in response to new EVENT_WINDOW_CLOSED, fixing demo issues; fix compiler error in last commit

CHANGELOG.txt

@@ -4,6 +4,7 @@ D1X-Rebirth Changelog
 --------
 arch/include/event.h, arch/sdl/window.c, main/automap.c, main/dumpmine.c, main/game.c, main/gamecntl.c, main/gamesave.c, main/gameseq.c, main/kconfig.c, main/net_ipx.c, main/net_udp.c, main/newmenu.c: Add EVENT_WINDOW_DEACTIVATED; move many game_flush_inputs, start_time and stop_time calls to game_handler as well as digi_pause_digi_sounds and digi_resume_digi_sounds
 main/inferno.c: Hide all other windows before showing error dialog, hopefully so errors don't happen while the error dialog is there
+arch/include/event.h, arch/sdl/window.c, main/game.c, main/inferno.c, main/newmenu.c: Put LeaveGame longjmp back, but in response to new EVENT_WINDOW_CLOSED, fixing demo issues; fix compiler error in last commit
 
 20100201
 --------

arch/include/event.h

@@ -11,6 +11,7 @@ typedef enum event_type
 	EVENT_WINDOW_DEACTIVATED,
 	EVENT_WINDOW_DRAW,
 	EVENT_WINDOW_CLOSE,
+	EVENT_WINDOW_CLOSED,
 	EVENT_USER	// spare for use by modules that use windows (e.g. newmenu)
 } event_type;
 

arch/sdl/window.c

@@ -65,6 +65,7 @@ int window_close(window *wind)
 {
 	window *prev;
 	d_event event;
+	int (*w_callback)(window *wind, d_event *event, void *data) = wind->w_callback;
 
 	event.type = EVENT_WINDOW_DEACTIVATED;	// Deactivate first
 	window_send_event(wind, &event);
@@ -92,6 +93,10 @@ int window_close(window *wind)
 	}
 	
 	d_free(wind);
+	
+	event.type = EVENT_WINDOW_CLOSED;
+	w_callback(wind, &event, NULL);	// callback needs to recognise this is a NULL pointer!
+	
 	return 1;
 }
 

main/game.c

@@ -22,6 +22,7 @@ COPYRIGHT 1993-1998 PARALLAX SOFTWARE CORPORATION.  ALL RIGHTS RESERVED.
 #include <string.h>
 #include <stdarg.h>
 #include <SDL/SDL.h>
+#include <setjmp.h>
 
 #ifdef OGL
 #include "ogl_init.h"
@@ -975,6 +976,7 @@ window *game_setup(void)
 void game_render_frame();
 
 window *Game_wind = NULL;
+jmp_buf LeaveGame;
 
 // Event handler for the game
 int game_handler(window *wind, d_event *event, void *data)
@@ -1078,6 +1080,10 @@ int game_handler(window *wind, d_event *event, void *data)
 			return 0;	// continue closing
 			break;
 			
+		case EVENT_WINDOW_CLOSED:
+			longjmp(LeaveGame, 0);
+			break;
+			
 		default:
 			return 0;
 			break;
@@ -1093,8 +1099,11 @@ void game()
 {
 	Game_wind = game_setup();
 
-	while (Game_wind)
-		event_process();
+	if (setjmp(LeaveGame) == 0)
+	{
+		while (Game_wind)
+			event_process();
+	}
 }
 
 //called at the end of the program

main/inferno.c

@@ -188,7 +188,7 @@ void error_messagebox(char *s)
 	
 	// Hide all windows so they don't interfere
 	// Don't care about unfreed pointers on exit; trying to close the windows may cause problems
-	for (wind = window_get_front(), wind != NULL; wind = window_get_front())
+	for (wind = window_get_front(); wind != NULL; wind = window_get_front())
 		window_set_visible(wind, 0);
 
 	nm_messagebox( TXT_SORRY, 1, TXT_OK, s );

main/newmenu.c

@@ -1238,6 +1238,9 @@ int newmenu_draw(window *wind, newmenu *menu)
 
 int newmenu_handler(window *wind, d_event *event, newmenu *menu)
 {
+	if (event->type == EVENT_WINDOW_CLOSED)
+		return 0;
+	
 	if (menu->subfunction)
 	{
 		int rval = (*menu->subfunction)(menu, event, menu->userdata);
@@ -1918,6 +1921,9 @@ int listbox_draw(window *wind, listbox *lb)
 
 int listbox_handler(window *wind, d_event *event, listbox *lb)
 {
+	if (event->type == EVENT_WINDOW_CLOSED)
+		return 0;
+
 	if (lb->listbox_callback)
 	{
 		int rval = (*lb->listbox_callback)(lb, event, lb->userdata);