Decouple horplus and fov in the video menu.

Until now the video menu enforced:

* fov set to 90 and horplus set to 1
* fov set to something other than 90 and horplus to 0

If the user hat configured another configuration through the console the
menu would reset it, even if only unrelated changes are applied. With
this change horplus is ignored by the menu and only fov is altered. The
rationale behind this is that most users want horplus enabled and all
others can disable it through the console.

This is believed to fix issue #225.

src/client/menu/videomenu.c

@@ -49,9 +49,9 @@ static menuframework_s s_opengl_menu;
 
 static menulist_s s_renderer_list;
 static menulist_s s_mode_list;
-static menulist_s s_aspect_list;
 static menulist_s s_uiscale_list;
 static menuslider_s s_brightness_slider;
+static menuslider_s s_fov_slider;
 static menulist_s s_fs_box;
 static menulist_s s_vsync_list;
 static menulist_s s_af_list;
@@ -109,6 +109,12 @@ BrightnessCallback(void *s)
 	Cvar_SetValue("vid_gamma", gamma);
 }
 
+static void
+FOVCallback(void *s) {
+	menuslider_s *slider = (menuslider_s *)s;
+	Cvar_SetValue("fov", slider->curvalue);
+}
+
 static void
 AnisotropicCallback(void *s)
 {
@@ -165,56 +171,6 @@ ApplyChanges(void *unused)
 		Cvar_SetValue("gl_mode", -1);
 	}
 
-	/* horplus */
-	if (s_aspect_list.curvalue == 0)
-	{
-		if (horplus->value != 1)
-		{
-			Cvar_SetValue("horplus", 1);
-		}
-	}
-	else
-	{
-		if (horplus->value != 0)
-		{
-			Cvar_SetValue("horplus", 0);
-		}
-	}
-
-	/* fov */
-	if (s_aspect_list.curvalue == 0 || s_aspect_list.curvalue == 1)
-	{
-		if (fov->value != 90)
-		{
-			/* Restarts automatically */
-			Cvar_SetValue("fov", 90);
-		}
-	}
-	else if (s_aspect_list.curvalue == 2)
-	{
-		if (fov->value != 86)
-		{
-			/* Restarts automatically */
-			Cvar_SetValue("fov", 86);
-		}
-	}
-	else if (s_aspect_list.curvalue == 3)
-	{
-		if (fov->value != 100)
-		{
-			/* Restarts automatically */
-			Cvar_SetValue("fov", 100);
-		}
-	}
-	else if (s_aspect_list.curvalue == 4)
-	{
-		if (fov->value != 106)
-		{
-			/* Restarts automatically */
-			Cvar_SetValue("fov", 106);
-		}
-	}
-
 	/* UI scaling */
 	if (s_uiscale_list.curvalue == 0)
 	{
@@ -309,16 +265,6 @@ VID_MenuInit(void)
 		0
 	};
 
-	static const char *aspect_names[] = {
-		"auto",
-		"4:3",
-		"5:4",
-		"16:10",
-		"16:9",
-		"custom",
-		0
-	};
-
 	static const char *uiscale_names[] = {
 		"auto",
 		"1x",
@@ -378,11 +324,6 @@ VID_MenuInit(void)
 		crosshair_scale = Cvar_Get("crosshair_scale", "-1", CVAR_ARCHIVE);
 	}
 
-	if (!horplus)
-	{
-		horplus = Cvar_Get("horplus", "1", CVAR_ARCHIVE);
-	}
-
 	if (!fov)
 	{
 		fov = Cvar_Get("fov", "90",  CVAR_USERINFO | CVAR_ARCHIVE);
@@ -446,35 +387,14 @@ VID_MenuInit(void)
 	s_brightness_slider.maxvalue = 20;
 	s_brightness_slider.curvalue = vid_gamma->value * 10;
 
-	s_aspect_list.generic.type = MTYPE_SPINCONTROL;
+	s_fov_slider.generic.type = MTYPE_SLIDER;
-	s_aspect_list.generic.name = "aspect ratio";
+	s_fov_slider.generic.x = 0;
-	s_aspect_list.generic.x = 0;
+	s_fov_slider.generic.y = (y += 10);
-	s_aspect_list.generic.y = (y += 20);
+	s_fov_slider.generic.name = "field of view";
-	s_aspect_list.itemnames = aspect_names;
+	s_fov_slider.generic.callback = FOVCallback;
-	if (horplus->value == 1)
+	s_fov_slider.minvalue = 60;
-	{
+	s_fov_slider.maxvalue = 120;
-		s_aspect_list.curvalue = 0;
+	s_fov_slider.curvalue = fov->value;
-	}
-	else if (fov->value == 90)
-	{
-		s_aspect_list.curvalue = 1;
-	}
-	else if (fov->value == 86)
-	{
-		s_aspect_list.curvalue = 2;
-	}
-	else if (fov->value == 100)
-	{
-		s_aspect_list.curvalue = 3;
-	}
-	else if (fov->value == 106)
-	{
-		s_aspect_list.curvalue = 4;
-	}
-	else
-	{
-		s_aspect_list.curvalue = GetCustomValue(&s_aspect_list);
-	}
 
 	s_uiscale_list.generic.type = MTYPE_SPINCONTROL;
 	s_uiscale_list.generic.name = "ui scale";
@@ -564,7 +484,7 @@ VID_MenuInit(void)
 	Menu_AddItem(&s_opengl_menu, (void *)&s_renderer_list);
 	Menu_AddItem(&s_opengl_menu, (void *)&s_mode_list);
 	Menu_AddItem(&s_opengl_menu, (void *)&s_brightness_slider);
-	Menu_AddItem(&s_opengl_menu, (void *)&s_aspect_list);
+	Menu_AddItem(&s_opengl_menu, (void *)&s_fov_slider);
 	Menu_AddItem(&s_opengl_menu, (void *)&s_uiscale_list);
 	Menu_AddItem(&s_opengl_menu, (void *)&s_fs_box);
 	Menu_AddItem(&s_opengl_menu, (void *)&s_vsync_list);