llteleporthistorystorage.h
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- /**
- * @file llteleporthistorystorage.h
- * @brief Saving/restoring of teleport history.
- *
- * $LicenseInfo:firstyear=2009&license=viewergpl$
- *
- * Copyright (c) 2009-2010, 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_LLTELEPORTHISTORYSTORAGE_H
- #define LL_LLTELEPORTHISTORYSTORAGE_H
- #include <vector>
- #include "llsingleton.h"
- #include "lldate.h"
- #include "v3dmath.h"
- class LLSD;
- /**
- * An item of the teleport history, stored in file
- *
- * Contains the location's global coordinates, title and date.
- */
- class LLTeleportHistoryPersistentItem
- {
- public:
- LLTeleportHistoryPersistentItem()
- {}
- LLTeleportHistoryPersistentItem(const std::string title, const LLVector3d& global_pos)
- : mTitle(title), mGlobalPos(global_pos), mDate(LLDate::now())
- {}
- LLTeleportHistoryPersistentItem(const std::string title, const LLVector3d& global_pos, const LLDate& date)
- : mTitle(title), mGlobalPos(global_pos), mDate(date)
- {}
- LLTeleportHistoryPersistentItem(const LLSD& val);
- LLSD toLLSD() const;
- std::string mTitle;
- LLVector3d mGlobalPos;
- LLDate mDate;
- };
- /**
- * Persistent teleport history.
- *
- */
- class LLTeleportHistoryStorage: public LLSingleton<LLTeleportHistoryStorage>
- {
- LOG_CLASS(LLTeleportHistoryStorage);
- public:
- typedef std::vector<LLTeleportHistoryPersistentItem> slurl_list_t;
- // removed_index is index of removed item, which replaced by more recent
- typedef boost::function<void(S32 removed_index)> history_callback_t;
- typedef boost::signals2::signal<void(S32 removed_index)> history_signal_t;
- LLTeleportHistoryStorage();
- ~LLTeleportHistoryStorage();
- /**
- * @return history items.
- */
- const slurl_list_t& getItems() const { return mItems; }
- void purgeItems();
- void addItem(const std::string title, const LLVector3d& global_pos);
- void addItem(const std::string title, const LLVector3d& global_pos, const LLDate& date);
- void removeItem(S32 idx);
- void save();
- void load();
- void dump() const;
- /**
- * Set a callback to be called upon history changes.
- *
- * Multiple callbacks can be set.
- */
- boost::signals2::connection setHistoryChangedCallback(history_callback_t cb);
- /**
- * Go to specific item in the history.
- *
- * The item is specified by its index (starting from 0).
- */
- void goToItem(S32 idx);
- private:
- void onTeleportHistoryChange();
- bool compareByTitleAndGlobalPos(const LLTeleportHistoryPersistentItem& a, const LLTeleportHistoryPersistentItem& b);
- slurl_list_t mItems;
- std::string mFilename;
- /**
- * Signal emitted when the history gets changed.
- *
- * Invokes callbacks set with setHistoryChangedCallback().
- */
- history_signal_t mHistoryChangedSignal;
- };
- #endif //LL_LLTELEPORTHISTORYSTORAGE_H