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path: root/indra/llappearance/llwearabledata.cpp
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/**
 * @file llwearabledata.cpp
 * @brief LLWearableData class implementation
 *
 * $LicenseInfo:firstyear=2012&license=viewerlgpl$
 * 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
 * $/LicenseInfo$
 */

#include "linden_common.h"

#include "llwearabledata.h"

#include "llavatarappearance.h"
#include "llavatarappearancedefines.h"
#include "lldriverparam.h"

LLWearableData::LLWearableData() :
    mAvatarAppearance(NULL)
{
}

// virtual
LLWearableData::~LLWearableData()
{
}

using namespace LLAvatarAppearanceDefines;

LLWearable* LLWearableData::getWearable(const LLWearableType::EType type, U32 index)
{
    wearableentry_map_t::iterator wearable_iter = mWearableDatas.find(type);
    if (wearable_iter == mWearableDatas.end())
    {
        return NULL;
    }
    wearableentry_vec_t& wearable_vec = wearable_iter->second;
    if (index>=wearable_vec.size())
    {
        return NULL;
    }
    else
    {
        return wearable_vec[index];
    }
}

void LLWearableData::setWearable(const LLWearableType::EType type, U32 index, LLWearable *wearable)
{
    LLWearable *old_wearable = getWearable(type,index);
    if (!old_wearable)
    {
        pushWearable(type,wearable);
        return;
    }

    wearableentry_map_t::iterator wearable_iter = mWearableDatas.find(type);
    if (wearable_iter == mWearableDatas.end())
    {
        LL_WARNS() << "invalid type, type " << type << " index " << index << LL_ENDL;
        return;
    }
    wearableentry_vec_t& wearable_vec = wearable_iter->second;
    if (index>=wearable_vec.size())
    {
        LL_WARNS() << "invalid index, type " << type << " index " << index << LL_ENDL;
    }
    else
    {
        wearable_vec[index] = wearable;
        old_wearable->setUpdated();
        const bool removed = false;
        wearableUpdated(wearable, removed);
    }
}

void LLWearableData::pushWearable(const LLWearableType::EType type,
                                   LLWearable *wearable,
                                   bool trigger_updated /* = true */)
{
    if (wearable == NULL)
    {
        // no null wearables please!
        LL_WARNS() << "Null wearable sent for type " << type << LL_ENDL;
    }
    if (canAddWearable(type))
    {
        mWearableDatas[type].push_back(wearable);
        if (trigger_updated)
        {
            const bool removed = false;
            wearableUpdated(wearable, removed);
        }
    }
}

// virtual
void LLWearableData::wearableUpdated(LLWearable *wearable, bool removed)
{
    wearable->setUpdated();
    if (!removed)
    {
        pullCrossWearableValues(wearable->getType());
    }
}

void LLWearableData::eraseWearable(LLWearable *wearable)
{
    if (wearable == NULL)
    {
        // nothing to do here. move along.
        return;
    }

    const LLWearableType::EType type = wearable->getType();

    U32 index;
    if (getWearableIndex(wearable,index))
    {
        eraseWearable(type, index);
    }
}

void LLWearableData::eraseWearable(const LLWearableType::EType type, U32 index)
{
    LLWearable *wearable = getWearable(type, index);
    if (wearable)
    {
        mWearableDatas[type].erase(mWearableDatas[type].begin() + index);
        const bool removed = true;
        wearableUpdated(wearable, removed);
    }
}

void LLWearableData::clearWearableType(const LLWearableType::EType type)
{
    wearableentry_map_t::iterator wearable_iter = mWearableDatas.find(type);
    if (wearable_iter == mWearableDatas.end())
    {
        return;
    }
    wearableentry_vec_t& wearable_vec = wearable_iter->second;
    wearable_vec.clear();
}

bool LLWearableData::swapWearables(const LLWearableType::EType type, U32 index_a, U32 index_b)
{
    wearableentry_map_t::iterator wearable_iter = mWearableDatas.find(type);
    if (wearable_iter == mWearableDatas.end())
    {
        return false;
    }

    wearableentry_vec_t& wearable_vec = wearable_iter->second;
    // removed 0 > index_a and index_b comparisions - can never be true
    if (index_a >= wearable_vec.size()) return false;
    if (index_b >= wearable_vec.size()) return false;

    LLWearable* wearable = wearable_vec[index_a];
    wearable_vec[index_a] = wearable_vec[index_b];
    wearable_vec[index_b] = wearable;
    return true;
}

void LLWearableData::pullCrossWearableValues(const LLWearableType::EType type)
{
    llassert(mAvatarAppearance);
    // scan through all of the avatar's visual parameters
    for (LLViewerVisualParam* param = (LLViewerVisualParam*) mAvatarAppearance->getFirstVisualParam();
         param;
         param = (LLViewerVisualParam*) mAvatarAppearance->getNextVisualParam())
    {
        if( param )
        {
            LLDriverParam *driver_param = dynamic_cast<LLDriverParam*>(param);
            if(driver_param)
            {
                // parameter is a driver parameter, have it update its cross-driven params
                driver_param->updateCrossDrivenParams(type);
            }
        }
    }
}


bool LLWearableData::getWearableIndex(const LLWearable *wearable, U32& index_found) const
{
    if (wearable == NULL)
    {
        return false;
    }

    const LLWearableType::EType type = wearable->getType();
    wearableentry_map_t::const_iterator wearable_iter = mWearableDatas.find(type);
    if (wearable_iter == mWearableDatas.end())
    {
        LL_WARNS() << "tried to get wearable index with an invalid type!" << LL_ENDL;
        return false;
    }
    const wearableentry_vec_t& wearable_vec = wearable_iter->second;
    for(U32 index = 0; index < wearable_vec.size(); index++)
    {
        if (wearable_vec[index] == wearable)
        {
            index_found = index;
            return true;
        }
    }

    return false;
}

U32 LLWearableData::getClothingLayerCount() const
{
    U32 count = 0;
    LLWearableType *wr_inst = LLWearableType::getInstance();
    for (S32 i = 0; i < LLWearableType::WT_COUNT; i++)
    {
        LLWearableType::EType type = (LLWearableType::EType)i;
        if (wr_inst->getAssetType(type)==LLAssetType::AT_CLOTHING)
        {
            count += getWearableCount(type);
        }
    }
    return count;
}

bool LLWearableData::canAddWearable(const LLWearableType::EType type) const
{
    LLAssetType::EType a_type = LLWearableType::getInstance()->getAssetType(type);
    if (a_type==LLAssetType::AT_CLOTHING)
    {
        return (getClothingLayerCount() < MAX_CLOTHING_LAYERS);
    }
    else if (a_type==LLAssetType::AT_BODYPART)
    {
        return (getWearableCount(type) < 1);
    }
    else
    {
        return false;
    }
}

bool LLWearableData::isOnTop(LLWearable* wearable) const
{
    if (!wearable) return false;
    const LLWearableType::EType type = wearable->getType();
    return ( getTopWearable(type) == wearable );
}

const LLWearable* LLWearableData::getWearable(const LLWearableType::EType type, U32 index) const
{
    wearableentry_map_t::const_iterator wearable_iter = mWearableDatas.find(type);
    if (wearable_iter == mWearableDatas.end())
    {
        return NULL;
    }
    const wearableentry_vec_t& wearable_vec = wearable_iter->second;
    if (index>=wearable_vec.size())
    {
        return NULL;
    }
    else
    {
        return wearable_vec[index];
    }
}

LLWearable* LLWearableData::getTopWearable(const LLWearableType::EType type)
{
    U32 count = getWearableCount(type);
    if ( count == 0)
    {
        return NULL;
    }

    return getWearable(type, count-1);
}

const LLWearable* LLWearableData::getTopWearable(const LLWearableType::EType type) const
{
    U32 count = getWearableCount(type);
    if ( count == 0)
    {
        return NULL;
    }

    return getWearable(type, count-1);
}

LLWearable* LLWearableData::getBottomWearable(const LLWearableType::EType type)
{
    if (getWearableCount(type) == 0)
    {
        return NULL;
    }

    return getWearable(type, 0);
}

const LLWearable* LLWearableData::getBottomWearable(const LLWearableType::EType type) const
{
    if (getWearableCount(type) == 0)
    {
        return NULL;
    }

    return getWearable(type, 0);
}

U32 LLWearableData::getWearableCount(const LLWearableType::EType type) const
{
    wearableentry_map_t::const_iterator wearable_iter = mWearableDatas.find(type);
    if (wearable_iter == mWearableDatas.end())
    {
        return 0;
    }
    const wearableentry_vec_t& wearable_vec = wearable_iter->second;
    return wearable_vec.size();
}

U32 LLWearableData::getWearableCount(const U32 tex_index) const
{
    const LLWearableType::EType wearable_type = LLAvatarAppearance::getDictionary()->getTEWearableType((LLAvatarAppearanceDefines::ETextureIndex)tex_index);
    return getWearableCount(wearable_type);
}