# signs_cmd.cpp

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    00001 /* $Id: signs_cmd.cpp 18781 2010-01-11 18:46:09Z rubidium $ */
    00002
    00003 /*
    00004  * This file is part of OpenTTD.
    00005  * 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.
    00006  * 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.
    00007  * 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/>.
    00008  */
    00009
    00012 #include "stdafx.h"
    00013 #include "landscape.h"
    00014 #include "company_func.h"
    00015 #include "signs_base.h"
    00016 #include "signs_func.h"
    00017 #include "command_func.h"
    00018 #include "tilehighlight_func.h"
    00019 #include "window_func.h"
    00020 #include "string_func.h"
    00021
    00022 #include "table/strings.h"
    00023
    00024 SignID _new_sign_id;
    00025
    00037 CommandCost CmdPlaceSign(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
    00038 {
    00039   /* Try to locate a new sign */
    00040   if (!Sign::CanAllocateItem()) return_cmd_error(STR_ERROR_TOO_MANY_SIGNS);
    00041
    00042   /* Check sign text length if any */
    00043   if (!StrEmpty(text) && strlen(text) >= MAX_LENGTH_SIGN_NAME_BYTES) return CMD_ERROR;
    00044
    00045   /* When we execute, really make the sign */
    00046   if (flags & DC_EXEC) {
    00047     Sign *si = new Sign(_current_company);
    00048     int x = TileX(tile) * TILE_SIZE;
    00049     int y = TileY(tile) * TILE_SIZE;
    00050
    00051     si->x = x;
    00052     si->y = y;
    00053     si->z = GetSlopeZ(x, y);
    00054     if (!StrEmpty(text)) {
    00055       si->name = strdup(text);
    00056     }
    00057     si->UpdateVirtCoord();
    00058     InvalidateWindowData(WC_SIGN_LIST, 0, 0);
    00059     _new_sign_id = si->index;
    00060   }
    00061
    00062   return CommandCost();
    00063 }
    00064
    00075 CommandCost CmdRenameSign(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
    00076 {
    00077   Sign *si = Sign::GetIfValid(p1);
    00078   if (si == NULL) return CMD_ERROR;
    00079
    00080   /* Rename the signs when empty, otherwise remove it */
    00081   if (!StrEmpty(text)) {
    00082     if (strlen(text) >= MAX_LENGTH_SIGN_NAME_BYTES) return CMD_ERROR;
    00083
    00084     if (flags & DC_EXEC) {
    00085       /* Delete the old name */
    00086       free(si->name);
    00087       /* Assign the new one */
    00088       si->name = strdup(text);
    00089       si->owner = _current_company;
    00090
    00091       si->UpdateVirtCoord();
    00092       InvalidateWindowData(WC_SIGN_LIST, 0, 1);
    00093     }
    00094   } else { // Delete sign
    00095     if (flags & DC_EXEC) {
    00096       si->sign.MarkDirty();
    00097       delete si;
    00098
    00099       InvalidateWindowData(WC_SIGN_LIST, 0, 0);
    00100     }
    00101   }
    00102
    00103   return CommandCost();
    00104 }
    00105
    00113 void CcPlaceSign(const CommandCost &result, TileIndex tile, uint32 p1, uint32 p2)
    00114 {
    00115   if (result.Failed()) return;
    00116
    00117   ShowRenameSignWindow(Sign::Get(_new_sign_id));
    00118   ResetObjectToPlace();
    00119 }
    00120
    00127 void PlaceProc_Sign(TileIndex tile)
    00128 {
    00129   DoCommandP(tile, 0, 0, CMD_PLACE_SIGN | CMD_MSG(STR_ERROR_CAN_T_PLACE_SIGN_HERE), CcPlaceSign);
    00130 }