/* $Id$ */

/*
 * This file is part of OpenTTD.
 * 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.
 * 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.
 * 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/>.
 */

/** @file tilehighlight_func.h Functions related to tile highlights. */

#ifndef TILEHIGHLIGHT_FUNC_H
#define TILEHIGHLIGHT_FUNC_H

#include "gfx_type.h"
#include "tilehighlight_type.h"
#include "track_type.h"

void PlaceProc_DemolishArea(TileIndex tile);
bool GUIPlaceProcDragXY(ViewportDragDropSelectionProcess proc, TileIndex start_tile, TileIndex end_tile);

bool HandlePlacePushButton(Window *w, int widget, CursorID cursor, HighLightStyle mode);
void SetObjectToPlaceWnd(CursorID icon, PaletteID pal, HighLightStyle mode, Window *w);
void SetObjectToPlace(CursorID icon, PaletteID pal, HighLightStyle mode, WindowClass window_class, WindowNumber window_num);
void ResetObjectToPlace();

void VpSelectTilesWithMethod(int x, int y, ViewportPlaceMethod method);
void VpStartPlaceSizing(TileIndex tile, ViewportPlaceMethod method, ViewportDragDropSelectionProcess process);
void VpSetPresizeRange(TileIndex from, TileIndex to);
void VpSetPlaceSizingLimit(int limit);

void UpdateTileSelection();
void StoreRailPlacementEndpoints(TileIndex start_tile, TileIndex end_tile, Track start_track, bool bidirectional = true);

/** Clear all rail track endpoints stored for highlighting purposes. @see StoreRailPlacementEndpoints */
static inline void ClearRailPlacementEndpoints()
{
	StoreRailPlacementEndpoints(INVALID_TILE, INVALID_TILE, TRACK_BEGIN, false);
}

extern TileHighlightData _thd;

#endif /* TILEHIGHLIGHT_FUNC_H */