From 791782b62f896df996ee2df52c942b9ae7f1acd0 Mon Sep 17 00:00:00 2001
From: celestar <celestar@openttd.org>
Date: Fri, 14 Jan 2005 09:36:29 +0000
Subject: [PATCH] (svn r1505) -Fix: Refit engine button is now disabled when
 cargo capacity equals zero

---
 train_gui.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/train_gui.c b/train_gui.c
index 270a436724..09e5644ad4 100644
--- a/train_gui.c
+++ b/train_gui.c
@@ -816,6 +816,10 @@ static void TrainViewWndProc(Window *w, WindowEvent *e)
 
 		w->disabled_state = (v->owner == _local_player) ? 0 : 0x380;
 
+		if (v->cargo_cap == 0) {
+			//we cannot refit this engine
+			SETBIT(w->disabled_state, 12);
+		}
 
 		/* draw widgets & caption */
 		SetDParam(0, v->string_id);