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/* $Id$ */
/** @file signs.cpp Handling of signs. */
#include "stdafx.h"
#include "landscape.h"
#include "company_func.h"
#include "signs_base.h"
#include "signs_func.h"
#include "command_func.h"
#include "strings_func.h"
#include "viewport_func.h"
#include "tilehighlight_func.h"
#include "zoom_func.h"
#include "functions.h"
#include "window_func.h"
#include "map_func.h"
#include "string_func.h"
#include "oldpool_func.h"
#include "table/strings.h"
SignID _new_sign_id;
/* Initialize the sign-pool */
DEFINE_OLD_POOL_GENERIC(Sign, Sign)
Sign::Sign(Owner owner)
{
this->owner = owner;
}
Sign::~Sign()
{
free(this->name);
if (CleaningPool()) return;
DeleteRenameSignWindow(this->index);
this->owner = INVALID_OWNER;
}
/**
*
* Update the coordinate of one sign
* @param si Pointer to the Sign
*
*/
static void UpdateSignVirtCoords(Sign *si)
{
Point pt = RemapCoords(si->x, si->y, si->z);
SetDParam(0, si->index);
UpdateViewportSignPos(&si->sign, pt.x, pt.y - 6, STR_2806);
}
/** Update the coordinates of all signs */
void UpdateAllSignVirtCoords()
{
Sign *si;
FOR_ALL_SIGNS(si) UpdateSignVirtCoords(si);
}
/**
* Marks the region of a sign as dirty.
*
* This function marks the sign in all viewports as dirty for repaint.
*
* @param si Pointer to the Sign
* @ingroup dirty
*/
static void MarkSignDirty(Sign *si)
{
/* We use ZOOM_LVL_MAX here, as every viewport can have an other zoom,
* and there is no way for us to know which is the biggest. So make the
* biggest area dirty, and we are safe for sure. */
MarkAllViewportsDirty(
si->sign.left - 6,
si->sign.top - 3,
si->sign.left + ScaleByZoom(si->sign.width_1 + 12, ZOOM_LVL_MAX),
si->sign.top + ScaleByZoom(12, ZOOM_LVL_MAX));
}
/**
* Place a sign at the given coordinates. Ownership of sign has
* no effect whatsoever except for the colour the sign gets for easy recognition,
* but everybody is able to rename/remove it.
* @param tile tile to place sign at
* @param flags type of operation
* @param p1 unused
* @param p2 unused
*/
CommandCost CmdPlaceSign(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
{
/* Try to locate a new sign */
if (!Sign::CanAllocateItem()) return_cmd_error(STR_2808_TOO_MANY_SIGNS);
/* Check sign text length if any */
if (!StrEmpty(text) && strlen(text) >= MAX_LENGTH_SIGN_NAME_BYTES) return CMD_ERROR;
/* When we execute, really make the sign */
if (flags & DC_EXEC) {
Sign *si = new Sign(_current_company);
int x = TileX(tile) * TILE_SIZE;
int y = TileY(tile) * TILE_SIZE;
si->x = x;
si->y = y;
si->z = GetSlopeZ(x, y);
if (!StrEmpty(text)) {
si->name = strdup(text);
}
UpdateSignVirtCoords(si);
MarkSignDirty(si);
InvalidateWindowData(WC_SIGN_LIST, 0, 0);
_new_sign_id = si->index;
}
return CommandCost();
}
/** Rename a sign. If the new name of the sign is empty, we assume
* the user wanted to delete it. So delete it. Ownership of signs
* has no meaning/effect whatsoever except for eyecandy
* @param tile unused
* @param flags type of operation
* @param p1 index of the sign to be renamed/removed
* @param p2 unused
* @return 0 if succesfull, otherwise CMD_ERROR
*/
CommandCost CmdRenameSign(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
{
if (!IsValidSignID(p1)) return CMD_ERROR;
/* Rename the signs when empty, otherwise remove it */
if (!StrEmpty(text)) {
if (strlen(text) >= MAX_LENGTH_SIGN_NAME_BYTES) return CMD_ERROR;
if (flags & DC_EXEC) {
Sign *si = GetSign(p1);
/* Delete the old name */
free(si->name);
/* Assign the new one */
si->name = strdup(text);
si->owner = _current_company;
/* Update; mark sign dirty twice, because it can either becom longer, or shorter */
MarkSignDirty(si);
UpdateSignVirtCoords(si);
MarkSignDirty(si);
InvalidateWindowData(WC_SIGN_LIST, 0, 1);
}
} else { // Delete sign
if (flags & DC_EXEC) {
Sign *si = GetSign(p1);
MarkSignDirty(si);
delete si;
InvalidateWindowData(WC_SIGN_LIST, 0, 0);
}
}
return CommandCost();
}
/**
* Callback function that is called after a sign is placed
* @param success of the operation
* @param tile unused
* @param p1 unused
* @param p2 unused
*/
void CcPlaceSign(bool success, TileIndex tile, uint32 p1, uint32 p2)
{
if (success) {
ShowRenameSignWindow(GetSign(_new_sign_id));
ResetObjectToPlace();
}
}
/**
*
* PlaceProc function, called when someone pressed the button if the
* sign-tool is selected
* @param tile on which to place the sign
*/
void PlaceProc_Sign(TileIndex tile)
{
DoCommandP(tile, 0, 0, CMD_PLACE_SIGN | CMD_MSG(STR_2809_CAN_T_PLACE_SIGN_HERE), CcPlaceSign);
}
/**
*
* Initialize the signs
*
*/
void InitializeSigns()
{
_Sign_pool.CleanPool();
_Sign_pool.AddBlockToPool();
}
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