From ac19535954d3b0ea4e4be832798efd6c46c784ba Mon Sep 17 00:00:00 2001
From: "fabio.olimpieri" <fabio.olimpieri@tin.it>
Date: Sun, 8 Feb 2015 13:42:52 +0000
Subject: [PATCH] Left and right togle preview windows

---
 src/computer.c |  1 +
 src/computer.h |  1 +
 src/menu_sdl.c | 20 +++++++++++++++-----
 3 files changed, 17 insertions(+), 5 deletions(-)

diff --git a/src/computer.c b/src/computer.c
index 2b254b4..24b3813 100644
--- a/src/computer.c
+++ b/src/computer.c
@@ -175,6 +175,7 @@ void computer_init () { //Called only on start-up
 	ordenador.tape_loop_counter = 0;
 	ordenador.kbd_buffer_pointer = 0;
 	ordenador.vk_is_active=0;
+	ordenador.show_preview=1;
 	ordenador.key = SDL_GetKeyState(NULL);
 	#ifdef HW_RVL
 	ordenador.joybuttonkey[0][3]=SDLK_LALT; //Fire button to wiimote1 button 2
diff --git a/src/computer.h b/src/computer.h
index e9cc33d..580dd37 100644
--- a/src/computer.h
+++ b/src/computer.h
@@ -270,6 +270,7 @@ struct computer {
 	unsigned char vk_is_active;
 	unsigned char autoconf;
 	unsigned char ignore_z80_joy_conf;
+	unsigned char show_preview;
 	
 	//Port variables
 	unsigned char port; //SD, USB, SMB or FTP
diff --git a/src/menu_sdl.c b/src/menu_sdl.c
index b8b4c83..7c9af0a 100644
--- a/src/menu_sdl.c
+++ b/src/menu_sdl.c
@@ -734,7 +734,7 @@ static void menu_draw(SDL_Surface *screen, menu_t *p_menu, int sel, int font_typ
 	if (font_type==FONT_ALT) y_start = p_menu->y1 + line_height+2/RATIO;
 	else y_start = p_menu->y1 + line_height+4/RATIO;
 	
-	if ((draw_scr)&&(RATIO==1)) max_string = 30; else max_string = 52;
+	if ((draw_scr)&&(RATIO==1)&&ordenador.show_preview) max_string = 30; else max_string = 52;
 
 	//if ( p_menu->n_entries * line_height > p_menu->y2 )
 		//y_start = p_menu->y1 + line_height;
@@ -781,7 +781,7 @@ static void menu_draw(SDL_Surface *screen, menu_t *p_menu, int sel, int font_typ
 			y = (i - p_menu->start_entry_visible) * line_height;
 			r.x = p_menu->x1+2/RATIO;
 			r.y = p_menu->y1 + line_height +y;
-			if ((draw_scr)&&(RATIO==1)) r.w = 365; //Only in 640 mode
+			if ((draw_scr)&&(RATIO==1)&&ordenador.show_preview) r.w = 365; //Only in 640 mode
 			else r.w = p_menu->x2 - p_menu->x1-4/RATIO;
 			r.h = line_height;
 			
@@ -912,7 +912,7 @@ static void menu_draw(SDL_Surface *screen, menu_t *p_menu, int sel, int font_typ
 		}
 	}
 	
-	if ((draw_scr)&&(RATIO==1)) //Only in 640 mode
+	if ((draw_scr)&&(RATIO==1)&&ordenador.show_preview) //Only in 640 mode
 	{
 	r.x = 367;
 	r.y = 39;
@@ -1264,9 +1264,19 @@ static int menu_select_internal(SDL_Surface *screen,
 		else if (keys & KEY_PAGEDOWN)
 			{select_next(p_menu, 0, 19, 0);play_click(0);}
 		else if (keys & KEY_LEFT)
-			{select_next(p_menu, -1, 0 ,1);play_click(0);}
+			{
+			if (draw_scr) 
+				ordenador.show_preview = 1;
+			else
+				{select_next(p_menu, -1, 0 ,1);play_click(0);}
+			}
 		else if (keys & KEY_RIGHT)
-			{select_next(p_menu, 1, 0 ,1);play_click(0);}
+			{
+			if (draw_scr) 
+				ordenador.show_preview = 0;
+			else
+				{select_next(p_menu, 1, 0 ,1);play_click(0);}
+			}
 		else if (keys & KEY_ESCAPE)
 			{play_click(2);break;}
 		else if (keys & KEY_SELECT)