From 897bb71621ef72490bd8667ab02355fdb40817fb Mon Sep 17 00:00:00 2001
From: terkhen <terkhen@openttd.org>
Date: Tue, 28 Sep 2010 21:58:06 +0000
Subject: (svn r20856) -Fix [FS#4141]: Road/water toolbars did not get updated
 when the first vehicle of their type becomes available.

---
 src/road_gui.cpp | 15 ++++++++++-----
 1 file changed, 10 insertions(+), 5 deletions(-)

(limited to 'src/road_gui.cpp')

diff --git a/src/road_gui.cpp b/src/road_gui.cpp
index 7fc5152fa..71a568fca 100644
--- a/src/road_gui.cpp
+++ b/src/road_gui.cpp
@@ -457,11 +457,7 @@ struct BuildRoadToolbarWindow : Window {
 			RTW_ONE_WAY,
 			WIDGET_LIST_END);
 
-		this->SetWidgetsDisabledState(!CanBuildVehicleInfrastructure(VEH_ROAD),
-			RTW_DEPOT,
-			RTW_BUS_STATION,
-			RTW_TRUCK_STATION,
-			WIDGET_LIST_END);
+		this->OnInvalidateData();
 
 		if (_settings_client.gui.link_terraform_toolbar) ShowTerraformToolbar(this);
 	}
@@ -471,6 +467,15 @@ struct BuildRoadToolbarWindow : Window {
 		if (_settings_client.gui.link_terraform_toolbar) DeleteWindowById(WC_SCEN_LAND_GEN, 0, false);
 	}
 
+	void OnInvalidateData(int data = 0)
+	{
+		this->SetWidgetsDisabledState(!CanBuildVehicleInfrastructure(VEH_ROAD),
+			RTW_DEPOT,
+			RTW_BUS_STATION,
+			RTW_TRUCK_STATION,
+			WIDGET_LIST_END);
+	}
+
 	/**
 	 * Update the remove button lowered state of the road toolbar
 	 *
-- 
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