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/**
 * @file llnamevalue.h
 * @brief class for defining name value pairs.
 *
 * $LicenseInfo:firstyear=2001&license=viewerlgpl$
 * Second Life Viewer Source Code
 * Copyright (C) 2010, Linden Research, Inc.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation;
 * version 2.1 of the License only.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 *
 * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
 * $/LicenseInfo$
 */

#ifndef LL_LLNAMEVALUE_H
#define LL_LLNAMEVALUE_H

// As of January 2008, I believe we only use the following name-value
// pairs.  This is hard to prove because they are initialized from
// strings.  JC
//
// FirstName STRING
// LastName STRING
// AttachPt U32
// AttachmentItemId STRING
// Title STRING
// AttachmentOffset VEC3
// AttachmentOrientation VEC3
// SitObject STRING
// SitPosition VEC3

#include "llstringtable.h"
#include "llmath.h"
#include "v3math.h"
#include "lldbstrings.h"

class LLNameValue;
class LLStringTable;

typedef enum e_name_value_types
{
    NVT_NULL,
    NVT_STRING,
    NVT_F32,
    NVT_S32,
    NVT_VEC3,
    NVT_U32,
    NVT_CAMERA, // Deprecated, but leaving in case removing this will cause problems
    NVT_ASSET,
    NVT_U64,
    NVT_EOF
} ENameValueType;

typedef enum e_name_value_class
{
    NVC_NULL,
    NVC_READ_ONLY,
    NVC_READ_WRITE,
    NVC_EOF
} ENameValueClass;

typedef enum e_name_value_sento
{
    NVS_NULL,
    NVS_SIM,
    NVS_DATA_SIM,
    NVS_SIM_VIEWER,
    NVS_DATA_SIM_VIEWER,
    NVS_EOF
} ENameValueSendto;


// NameValues can always be "printed" into a buffer of this length.
const U32 NAME_VALUE_BUF_SIZE = 1024;


const U32 NAME_VALUE_TYPE_STRING_LENGTH = 8;
const U32 NAME_VALUE_CLASS_STRING_LENGTH = 16;
const U32 NAME_VALUE_SENDTO_STRING_LENGTH = 18;
const U32 NAME_VALUE_DATA_SIZE =
            NAME_VALUE_BUF_SIZE -
            ( DB_NV_NAME_BUF_SIZE +
            NAME_VALUE_TYPE_STRING_LENGTH +
            NAME_VALUE_CLASS_STRING_LENGTH +
            NAME_VALUE_SENDTO_STRING_LENGTH );


extern char NameValueTypeStrings[NVT_EOF][NAME_VALUE_TYPE_STRING_LENGTH];           /* Flawfinder: Ignore */
extern char NameValueClassStrings[NVC_EOF][NAME_VALUE_CLASS_STRING_LENGTH];     /* Flawfinder: Ignore */
extern char NameValueSendtoStrings[NVS_EOF][NAME_VALUE_SENDTO_STRING_LENGTH];       /* Flawfinder: Ignore */

typedef union u_name_value_reference
{
    char        *string;
    F32         *f32;
    S32         *s32;
    LLVector3   *vec3;
    U32         *u32;
    U64         *u64;
} UNameValueReference;


class LLNameValue
{
public:
    void baseInit();
    void init(const char *name, const char *data, const char *type, const char *nvclass, const char *nvsendto );

    LLNameValue();
    LLNameValue(const char *data);
    LLNameValue(const char *name, const char *type, const char *nvclass );
    LLNameValue(const char *name, const char *data, const char *type, const char *nvclass );
    LLNameValue(const char *name, const char *data, const char *type, const char *nvclass, const char *nvsendto );

    ~LLNameValue();

    char            *getString();
    const char      *getAsset() const;
    F32             *getF32();
    S32             *getS32();
    void            getVec3(LLVector3 &vec);
    LLVector3       *getVec3();
    U32             *getU32();
    U64             *getU64();

    const char      *getType() const        { return mStringType; }
    const char      *getClass() const       { return mStringClass; }
    const char      *getSendto() const      { return mStringSendto; }

    bool            sendToData() const;
    bool            sendToViewer() const;

    void            callCallback();
    std::string     printNameValue() const;
    std::string     printData() const;

    ENameValueType      getTypeEnum() const     { return mType; }
    ENameValueClass     getClassEnum() const    { return mClass; }
    ENameValueSendto    getSendtoEnum() const   { return mSendto; }

    LLNameValue     &operator=(const LLNameValue &a);
    void            setString(const char *a);
    void            setAsset(const char *a);
    void            setF32(const F32 a);
    void            setS32(const S32 a);
    void            setVec3(const LLVector3 &a);
    void            setU32(const U32 a);

    friend std::ostream&        operator<<(std::ostream& s, const LLNameValue &a);

private:
    void            printNameValue(std::ostream& s);

public:
    char                        *mName;

    char                        *mStringType;
    ENameValueType              mType;
    char                        *mStringClass;
    ENameValueClass             mClass;
    char                        *mStringSendto;
    ENameValueSendto            mSendto;

    UNameValueReference         mNameValueReference;
    LLStringTable               *mNVNameTable;
};

extern LLStringTable    gNVNameTable;


#endif