src/depot_cmd.cpp

   1 /*
   2  * This file is part of OpenTTD.
   3  * 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.
   4  * 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.
   5  * 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/>.
   6  */
   7
   8 /** @file depot_cmd.cpp %Command Handling for depots. */
   9
  10 #include "stdafx.h"
  11 #include "command_func.h"
  12 #include "depot_base.h"
  13 #include "company_func.h"
  14 #include "string_func.h"
  15 #include "town.h"
  16 #include "vehicle_gui.h"
  17 #include "vehiclelist.h"
  18 #include "window_func.h"
  19
  20 #include "table/strings.h"
  21
  22 #include "safeguards.h"
  23
  24 /**
  25  * Check whether the given name is globally unique amongst depots.
  26  * @param name The name to check.
  27  * @return True if there is no depot with the given name.
  28  */
  29 static bool IsUniqueDepotName(const char *name)
  30 {
  31         for (const Depot *d : Depot::Iterate()) {
  32                 if (d->name != nullptr && strcmp(d->name, name) == 0) return false;
  33         }
  34
  35         return true;
  36 }
  37
  38 /**
  39  * Rename a depot.
  40  * @param tile unused
  41  * @param flags type of operation
  42  * @param p1 id of depot
  43  * @param p2 unused
  44  * @param text the new name or an empty string when resetting to the default
  45  * @return the cost of this operation or an error
  46  */
  47 CommandCost CmdRenameDepot(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
  48 {
  49         Depot *d = Depot::GetIfValid(p1);
  50         if (d == nullptr) return CMD_ERROR;
  51
  52         CommandCost ret = CheckTileOwnership(d->xy);
  53         if (ret.Failed()) return ret;
  54
  55         bool reset = StrEmpty(text);
  56
  57         if (!reset) {
  58                 if (Utf8StringLength(text) >= MAX_LENGTH_DEPOT_NAME_CHARS) return CMD_ERROR;
  59                 if (!IsUniqueDepotName(text)) return_cmd_error(STR_ERROR_NAME_MUST_BE_UNIQUE);
  60         }
  61
  62         if (flags & DC_EXEC) {
  63                 free(d->name);
  64
  65                 if (reset) {
  66                         d->name = nullptr;
  67                         MakeDefaultName(d);
  68                 } else {
  69                         d->name = stredup(text);
  70                 }
  71
  72                 /* Update the orders and depot */
  73                 SetWindowClassesDirty(WC_VEHICLE_ORDERS);
  74                 SetWindowDirty(WC_VEHICLE_DEPOT, d->xy);
  75
  76                 /* Update the depot list */
  77                 VehicleType vt = GetDepotVehicleType(d->xy);
  78                 SetWindowDirty(GetWindowClassForVehicleType(vt), VehicleListIdentifier(VL_DEPOT_LIST, vt, GetTileOwner(d->xy), d->index).Pack());
  79         }
  80         return CommandCost();
  81 }