From 4780c732241b78be16df0cd493c79931c97344aa Mon Sep 17 00:00:00 2001
From: frosch <frosch@openttd.org>
Date: Tue, 13 Jan 2009 17:28:11 +0000
Subject: [PATCH] (svn r15065) -Change (r14919): Allow to select a new station
 location by ctrl-clicking while distant-join window is open. (PhilSophus)

---
 src/station_gui.cpp      | 17 +++++++++++++----
 src/tilehighlight_func.h |  2 ++
 src/viewport.cpp         |  1 -
 src/window.cpp           |  1 -
 4 files changed, 15 insertions(+), 6 deletions(-)

diff --git a/src/station_gui.cpp b/src/station_gui.cpp
index 2902a8121b..cdfc2b9557 100644
--- a/src/station_gui.cpp
+++ b/src/station_gui.cpp
@@ -1206,17 +1206,26 @@ static const WindowDesc _select_station_desc = {
  */
 static bool StationJoinerNeeded(CommandContainer cmd, int w, int h)
 {
-	if (CmdFailed(DoCommand(&cmd, CommandFlagsToDCFlags(GetCommandFlags(cmd.cmd))))) return false;
-
 	/* Only show selection if distant join is enabled in the settings */
 	if (!_settings_game.station.distant_join_stations) return false;
 
-	/* If a window is already opened, we always return true */
-	if (FindWindowById(WC_SELECT_STATION, 0) != NULL) return true;
+	/* If a window is already opened and we didn't ctrl-click,
+	 * return true (i.e. just flash the old window) */
+	Window *selection_window = FindWindowById(WC_SELECT_STATION, 0);
+	if (selection_window != NULL) {
+		if (!_ctrl_pressed) return true;
+
+		/* Abort current distant-join and start new one */
+		delete selection_window;
+		UpdateTileSelection();
+	}
 
 	/* only show the popup, if we press ctrl */
 	if (!_ctrl_pressed) return false;
 
+	/* Now check if we could build there */
+	if (CmdFailed(DoCommand(&cmd, CommandFlagsToDCFlags(GetCommandFlags(cmd.cmd))))) return false;
+
 	/* First test for adjacent station */
 	FindStationsNearby(cmd.tile, w, h, false);
 	int neighbour_station_count = _stations_nearby_list.Length();
diff --git a/src/tilehighlight_func.h b/src/tilehighlight_func.h
index 4a0f5bb0e4..af57bcb295 100644
--- a/src/tilehighlight_func.h
+++ b/src/tilehighlight_func.h
@@ -24,6 +24,8 @@ void VpStartPlaceSizing(TileIndex tile, ViewportPlaceMethod method, ViewportDrag
 void VpSetPresizeRange(TileIndex from, TileIndex to);
 void VpSetPlaceSizingLimit(int limit);
 
+void UpdateTileSelection();
+
 extern PlaceProc *_place_proc;
 extern TileHighlightData _thd;
 
diff --git a/src/viewport.cpp b/src/viewport.cpp
index 7029dc2daa..57520bf547 100644
--- a/src/viewport.cpp
+++ b/src/viewport.cpp
@@ -2116,7 +2116,6 @@ static HighLightStyle GetAutorailHT(int x, int y)
  * Also drawstyle is determined. Uses _thd.new.* as a buffer and calls SetSelectionTilesDirty() twice,
  * Once for the old and once for the new selection.
  * _thd is TileHighlightData, found in viewport.h
- * Called by MouseLoop() in windows.cpp
  */
 void UpdateTileSelection()
 {
diff --git a/src/window.cpp b/src/window.cpp
index 32773982b3..5ee2e1bf3c 100644
--- a/src/window.cpp
+++ b/src/window.cpp
@@ -1745,7 +1745,6 @@ enum MouseClick {
 	TIME_BETWEEN_DOUBLE_CLICK = 500, ///< Time between 2 left clicks before it becoming a double click, in ms
 };
 
-extern void UpdateTileSelection();
 extern bool VpHandlePlaceSizingDrag();
 
 static void ScrollMainViewport(int x, int y)