CoolVLViewer/indra/newview/llpathfindingnavmesh.h

/**
 * @file llpathfindingnavmesh.h
 * @brief Header file for llpathfindingnavmesh
 *
 * $LicenseInfo:firstyear=2012&license=viewergpl$
 *
 * Copyright (c) 2012, Linden Research, Inc.
 *
 * Second Life Viewer Source Code
 * The source code in this file ("Source Code") is provided by Linden Lab
 * to you under the terms of the GNU General Public License, version 2.0
 * ("GPL"), unless you have obtained a separate licensing agreement
 * ("Other License"), formally executed by you and Linden Lab.  Terms of
 * the GPL can be found in doc/GPL-license.txt in this distribution, or
 * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
 *
 * There are special exceptions to the terms and conditions of the GPL as
 * it is applied to this Source Code. View the full text of the exception
 * in the file doc/FLOSS-exception.txt in this software distribution, or
 * online at
 * http://secondlifegrid.net/programs/open_source/licensing/flossexception
 *
 * By copying, modifying or distributing this software, you acknowledge
 * that you have read and understood your obligations described above,
 * and agree to abide by those obligations.
 *
 * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
 * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
 * COMPLETENESS OR PERFORMANCE.
 * $/LicenseInfo$
 */

#ifndef LL_LLPATHFINDINGNAVMESH_H
#define LL_LLPATHFINDINGNAVMESH_H

#include <memory>
#include <string>

#include "boost/function.hpp"
#include "boost/signals2.hpp"

#include "llsd.h"

#include "llpathfindingnavmeshstatus.h"

class LLUUID;

class LLPathfindingNavMesh
{
protected:
	LOG_CLASS(LLPathfindingNavMesh);

public:
	typedef std::shared_ptr<LLPathfindingNavMesh> ptr_t;

	typedef enum {
		kNavMeshRequestUnknown,
		kNavMeshRequestWaiting,
		kNavMeshRequestChecking,
		kNavMeshRequestNeedsUpdate,
		kNavMeshRequestStarted,
		kNavMeshRequestCompleted,
		kNavMeshRequestNotEnabled,
		kNavMeshRequestError
	} ENavMeshRequestStatus;

	typedef boost::function<void (ENavMeshRequestStatus,
								  const LLPathfindingNavMeshStatus&,
								  const LLSD::Binary&)> navmesh_cb_t;
	typedef boost::signals2::signal<void (ENavMeshRequestStatus,
										  const LLPathfindingNavMeshStatus&,
										  const LLSD::Binary&)> navmesh_signal_t;
	typedef boost::signals2::connection navmesh_slot_t;

	LLPathfindingNavMesh(const LLUUID& region_id);

	navmesh_slot_t registerNavMeshListener(navmesh_cb_t callback);

	bool hasNavMeshVersion(const LLPathfindingNavMeshStatus& status) const;

	void handleNavMeshWaitForRegionLoad();
	void handleNavMeshCheckVersion();
	void handleRefresh(const LLPathfindingNavMeshStatus& status);
	void handleNavMeshNewVersion(const LLPathfindingNavMeshStatus& status);
	void handleNavMeshStart(const LLPathfindingNavMeshStatus& status);
	void handleNavMeshResult(const LLSD& content, U32 version);
	void handleNavMeshNotEnabled();
	void handleNavMeshError();
	void handleNavMeshError(U32 version);

protected:

private:
	void setRequestStatus(ENavMeshRequestStatus statusp);
	void sendStatus();

	LLPathfindingNavMeshStatus mNavMeshStatus;
	ENavMeshRequestStatus      mNavMeshRequestStatus;
	navmesh_signal_t           mNavMeshSignal;
	LLSD::Binary               mNavMeshData;
};

#endif // LL_LLPATHFINDINGNAVMESH_H