From 0daf3509227d476d7c869ce5c74906d7e3214565 Mon Sep 17 00:00:00 2001
From: michi_cc <michi_cc@openttd.org>
Date: Tue, 17 Apr 2012 19:44:12 +0000
Subject: [PATCH] (svn r24138) -Feature(ette): Ctrl+drag to add all vehicles
 with a shared order list to a group. (Juanjo)

---
 src/group_cmd.cpp | 48 +++++++++++++++++++++++++++++++++--------------
 src/group_gui.cpp |  4 ++--
 2 files changed, 36 insertions(+), 16 deletions(-)

diff --git a/src/group_cmd.cpp b/src/group_cmd.cpp
index 029ea1e927..a3587abbfe 100644
--- a/src/group_cmd.cpp
+++ b/src/group_cmd.cpp
@@ -386,6 +386,32 @@ CommandCost CmdRenameGroup(TileIndex tile, DoCommandFlag flags, uint32 p1, uint3
 }
 
 
+/**
+ * Do add a vehicle to a group.
+ * @param v Vehicle to add.
+ * @param new_g Group to add to.
+ */
+static void AddVehicleToGroup(Vehicle *v, GroupID new_g)
+{
+	GroupStatistics::CountVehicle(v, -1);
+
+	switch (v->type) {
+		default: NOT_REACHED();
+		case VEH_TRAIN:
+			SetTrainGroupID(Train::From(v), new_g);
+			break;
+
+		case VEH_ROAD:
+		case VEH_SHIP:
+		case VEH_AIRCRAFT:
+			if (v->IsEngineCountable()) UpdateNumEngineGroup(v, v->group_id, new_g);
+			v->group_id = new_g;
+			break;
+	}
+
+	GroupStatistics::CountVehicle(v, 1);
+}
+
 /**
  * Add a vehicle to a group
  * @param tile unused
@@ -394,12 +420,13 @@ CommandCost CmdRenameGroup(TileIndex tile, DoCommandFlag flags, uint32 p1, uint3
  *   - p1 bit 0-15 : GroupID
  * @param p2   vehicle to add to a group
  *   - p2 bit 0-19 : VehicleID
+ *   - p2 bit   31 : Add shared vehicles as well.
  * @param text unused
  * @return the cost of this operation or an error
  */
 CommandCost CmdAddVehicleGroup(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
 {
-	Vehicle *v = Vehicle::GetIfValid(p2);
+	Vehicle *v = Vehicle::GetIfValid(GB(p2, 0, 20));
 	GroupID new_g = p1;
 
 	if (v == NULL || (!Group::IsValidID(new_g) && !IsDefaultGroupID(new_g))) return CMD_ERROR;
@@ -412,22 +439,15 @@ CommandCost CmdAddVehicleGroup(TileIndex tile, DoCommandFlag flags, uint32 p1, u
 	if (v->owner != _current_company || !v->IsPrimaryVehicle()) return CMD_ERROR;
 
 	if (flags & DC_EXEC) {
-		GroupStatistics::CountVehicle(v, -1);
+		AddVehicleToGroup(v, new_g);
 
-		switch (v->type) {
-			default: NOT_REACHED();
-			case VEH_TRAIN:
-				SetTrainGroupID(Train::From(v), new_g);
-				break;
-			case VEH_ROAD:
-			case VEH_SHIP:
-			case VEH_AIRCRAFT:
-				if (v->IsEngineCountable()) UpdateNumEngineGroup(v, v->group_id, new_g);
-				v->group_id = new_g;
-				break;
+		if (HasBit(p2, 31)) {
+			/* Add vehicles in the shared order list as well. */
+			for (Vehicle *v2 = v->FirstShared(); v2 != NULL; v2 = v2->NextShared()) {
+				if (v2->group_id != new_g) AddVehicleToGroup(v2, new_g);
+			}
 		}
 
-		GroupStatistics::CountVehicle(v, 1);
 		GroupStatistics::UpdateAutoreplace(v->owner);
 
 		/* Update the Replace Vehicle Windows */
diff --git a/src/group_gui.cpp b/src/group_gui.cpp
index 7b2c5c516b..0c7a412c7d 100644
--- a/src/group_gui.cpp
+++ b/src/group_gui.cpp
@@ -631,7 +631,7 @@ public:
 		switch (widget) {
 			case WID_GL_ALL_VEHICLES: // All vehicles
 			case WID_GL_DEFAULT_VEHICLES: // Ungrouped vehicles
-				DoCommandP(0, DEFAULT_GROUP, this->vehicle_sel, CMD_ADD_VEHICLE_GROUP | CMD_MSG(STR_ERROR_GROUP_CAN_T_ADD_VEHICLE));
+				DoCommandP(0, DEFAULT_GROUP, this->vehicle_sel | (_ctrl_pressed ? 1 << 31 : 0), CMD_ADD_VEHICLE_GROUP | CMD_MSG(STR_ERROR_GROUP_CAN_T_ADD_VEHICLE));
 
 				this->vehicle_sel = INVALID_VEHICLE;
 				this->group_over = INVALID_GROUP;
@@ -648,7 +648,7 @@ public:
 				uint id_g = this->group_sb->GetScrolledRowFromWidget(pt.y, this, WID_GL_LIST_GROUP, 0, this->tiny_step_height);
 				if (id_g >= this->groups.Length()) return;
 
-				DoCommandP(0, this->groups[id_g]->index, vindex, CMD_ADD_VEHICLE_GROUP | CMD_MSG(STR_ERROR_GROUP_CAN_T_ADD_VEHICLE));
+				DoCommandP(0, this->groups[id_g]->index, vindex | (_ctrl_pressed ? 1 << 31 : 0), CMD_ADD_VEHICLE_GROUP | CMD_MSG(STR_ERROR_GROUP_CAN_T_ADD_VEHICLE));
 				break;
 			}