From 6b9b879a2c5d08219df6f38ab29d014fa1c60729 Mon Sep 17 00:00:00 2001
From: frosch <frosch@openttd.org>
Date: Sat, 23 Aug 2008 16:34:05 +0000
Subject: (svn r14143) -Codechange: Recenter viewport of waypoint window when
 relocating the waypoint.

---
 src/waypoint.cpp     | 1 +
 src/waypoint_gui.cpp | 7 +++++++
 2 files changed, 8 insertions(+)

diff --git a/src/waypoint.cpp b/src/waypoint.cpp
index 1fa291b39..aaaedd73e 100644
--- a/src/waypoint.cpp
+++ b/src/waypoint.cpp
@@ -249,6 +249,7 @@ CommandCost CmdBuildTrainWaypoint(TileIndex tile, uint32 flags, uint32 p1, uint3
 
 			RedrawWaypointSign(wp);
 			wp->xy = tile;
+			InvalidateWindowData(WC_WAYPOINT_VIEW, wp->index);
 		}
 
 		const StationSpec* statspec;
diff --git a/src/waypoint_gui.cpp b/src/waypoint_gui.cpp
index 75d9d4798..f1a1c23c1 100644
--- a/src/waypoint_gui.cpp
+++ b/src/waypoint_gui.cpp
@@ -77,6 +77,13 @@ public:
 		}
 	}
 
+	virtual void OnInvalidateData(int data)
+	{
+		int x = TileX(this->wp->xy) * TILE_SIZE;
+		int y = TileY(this->wp->xy) * TILE_SIZE;
+		ScrollWindowTo(x,y, this);
+	}
+
 	virtual void OnQueryTextFinished(char *str)
 	{
 		if (!StrEmpty(str)) {
-- 
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