src/depot_cmd.cpp

   1 /* $Id$ */
   2
   3 /*
   4  * This file is part of OpenTTD.
   5  * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
   6  * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
   7  * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
   8  */
   9
  10 /** @file depot_cmd.cpp %Command Handling for depots. */
  11
  12 #include "stdafx.h"
  13 #include "command_func.h"
  14 #include "depot_base.h"
  15 #include "company_func.h"
  16 #include "string_func.h"
  17 #include "town.h"
  18 #include "vehicle_gui.h"
  19 #include "vehiclelist.h"
  20 #include "window_func.h"
  21
  22 #include "table/strings.h"
  23
  24 #include "safeguards.h"
  25
  26 /**
  27  * Check whether the given name is globally unique amongst depots.
  28  * @param name The name to check.
  29  * @return True if there is no depot with the given name.
  30  */
  31 static bool IsUniqueDepotName(const char *name)
  32 {
  33         const Depot *d;
  34
  35         FOR_ALL_DEPOTS(d) {
  36                 if (d->name != nullptr && strcmp(d->name, name) == 0) return false;
  37         }
  38
  39         return true;
  40 }
  41
  42 /**
  43  * Rename a depot.
  44  * @param tile unused
  45  * @param flags type of operation
  46  * @param p1 id of depot
  47  * @param p2 unused
  48  * @param text the new name or an empty string when resetting to the default
  49  * @return the cost of this operation or an error
  50  */
  51 CommandCost CmdRenameDepot(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
  52 {
  53         Depot *d = Depot::GetIfValid(p1);
  54         if (d == nullptr) return CMD_ERROR;
  55
  56         CommandCost ret = CheckTileOwnership(d->xy);
  57         if (ret.Failed()) return ret;
  58
  59         bool reset = StrEmpty(text);
  60
  61         if (!reset) {
  62                 if (Utf8StringLength(text) >= MAX_LENGTH_DEPOT_NAME_CHARS) return CMD_ERROR;
  63                 if (!IsUniqueDepotName(text)) return_cmd_error(STR_ERROR_NAME_MUST_BE_UNIQUE);
  64         }
  65
  66         if (flags & DC_EXEC) {
  67                 free(d->name);
  68
  69                 if (reset) {
  70                         d->name = nullptr;
  71                         MakeDefaultName(d);
  72                 } else {
  73                         d->name = stredup(text);
  74                 }
  75
  76                 /* Update the orders and depot */
  77                 SetWindowClassesDirty(WC_VEHICLE_ORDERS);
  78                 SetWindowDirty(WC_VEHICLE_DEPOT, d->xy);
  79
  80                 /* Update the depot list */
  81                 VehicleType vt = GetDepotVehicleType(d->xy);
  82                 SetWindowDirty(GetWindowClassForVehicleType(vt), VehicleListIdentifier(VL_DEPOT_LIST, vt, GetTileOwner(d->xy), d->index).Pack());
  83         }
  84         return CommandCost();
  85 }