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Open Asset Import Library (assimp)

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/// \file   X3DImporter_Metadata.cpp

/// \brief  Parsing data from nodes of "Metadata" set of X3D.

/// \date   2015-2016

/// \author smal.root@gmail.com

#ifndef ASSIMP_BUILD_NO_X3D_IMPORTER

#include "X3DImporter.hpp"

#include "X3DImporter_Macro.hpp"

#include "X3DXmlHelper.h"

namespace Assimp {

bool X3DImporter::checkForMetadataNode(XmlNode &node) {

    const std::string &name = node.name();

    if (name == "MetadataBoolean") {

        readMetadataBoolean(node);

    } else if (name == "MetadataDouble") {

        readMetadataDouble(node);

    } else if (name == "MetadataFloat") {

        readMetadataFloat(node);

    } else if (name == "MetadataInteger") {

        readMetadataInteger(node);

    } else if (name == "MetadataSet") {

        readMetadataSet(node);

    } else if (name == "MetadataString") {

        readMetadataString(node);

    } else

        return false;

    return true;

}

void X3DImporter::childrenReadMetadata(XmlNode &node, X3DNodeElementBase *pParentElement, const std::string &pNodeName) {

    ParseHelper_Node_Enter(pParentElement);

    for (auto childNode : node.children()) {

        if (!checkForMetadataNode(childNode)) skipUnsupportedNode(pNodeName, childNode);

    }

    ParseHelper_Node_Exit();

}

/// \def MACRO_METADATA_FINDCREATE(pDEF_Var, pUSE_Var, pReference, pValue, pNE, pMetaName)

/// Find element by "USE" or create new one.

/// \param [in] pNode - pugi xml node to read.

/// \param [in] pDEF_Var - variable name with "DEF" value.

/// \param [in] pUSE_Var - variable name with "USE" value.

/// \param [in] pReference - variable name with "reference" value.

/// \param [in] pValue - variable name with "value" value.

/// \param [in, out] pNE - pointer to node element.

/// \param [in] pMetaClass - Class of node.

/// \param [in] pMetaName - Name of node.

/// \param [in] pType - type of element to find.

#define MACRO_METADATA_FINDCREATE(pNode, pDEF_Var, pUSE_Var, pReference, pValue, pNE, pMetaClass, pMetaName, pType)                            \

    /* if "USE" defined then find already defined element. */                                                                                  \

    if (!pUSE_Var.empty()) {                                                                                                                   \

        ne = MACRO_USE_CHECKANDAPPLY(pNode, pDEF_Var, pUSE_Var, pType, pNE);                                                                        \

    } else {                                                                                                                                   \

        pNE = new pMetaClass(mNodeElementCur);                                                                                                 \

        if (!pDEF_Var.empty()) pNE->ID = pDEF_Var;                                                                                             \

                                                                                                                                               \

        ((pMetaClass *)pNE)->Reference = pReference;                                                                                           \

        ((pMetaClass *)pNE)->Value = pValue;                                                                                                   \

        /* also metadata node can contain childs */                                                                                            \

        if (!isNodeEmpty(pNode))                                                                                                               \

            childrenReadMetadata(pNode, pNE, pMetaName); /* in that case node element will be added to child elements list of current node. */ \

        else                                                                                                                                   \

            mNodeElementCur->Children.push_back(pNE); /* else - add element to child list manually */                                          \

                                                                                                                                               \

        NodeElement_List.push_back(pNE); /* add new element to elements list. */                                                               \

    } /* if(!pUSE_Var.empty()) else */                                                                                                         \

                                                                                                                                               \

    do {                                                                                                                                       \

    } while (false)

// <MetadataBoolean

// DEF=""       ID

// USE=""       IDREF

// name=""      SFString [inputOutput]

// reference="" SFString [inputOutput]

// value=""     MFBool   [inputOutput]

// />

void X3DImporter::readMetadataBoolean(XmlNode &node) {

    std::string def, use;

    std::string name, reference;

    std::vector<bool> value;

    X3DNodeElementBase *ne(nullptr);

    MACRO_ATTRREAD_CHECKUSEDEF_RET(node, def, use);

    XmlParser::getStdStrAttribute(node, "name", name);

    XmlParser::getStdStrAttribute(node, "reference", reference);

    X3DXmlHelper::getBooleanArrayAttribute(node, "value", value);

    MACRO_METADATA_FINDCREATE(node, def, use, reference, value, ne, X3DNodeElementMetaBoolean, "MetadataBoolean", ENET_MetaBoolean);

}

// <MetadataDouble

// DEF=""       ID

// USE=""       IDREF

// name=""      SFString [inputOutput]

// reference="" SFString [inputOutput]

// value=""     MFDouble [inputOutput]

// />

void X3DImporter::readMetadataDouble(XmlNode &node) {

    std::string def, use;

    std::string name, reference;

    std::vector<double> value;

    X3DNodeElementBase *ne(nullptr);

    MACRO_ATTRREAD_CHECKUSEDEF_RET(node, def, use);

    XmlParser::getStdStrAttribute(node, "name", name);

    XmlParser::getStdStrAttribute(node, "reference", reference);

    X3DXmlHelper::getDoubleArrayAttribute(node, "value", value);

    MACRO_METADATA_FINDCREATE(node, def, use, reference, value, ne, X3DNodeElementMetaDouble, "MetadataDouble", ENET_MetaDouble);

}

// <MetadataFloat

// DEF=""       ID

// USE=""       IDREF

// name=""      SFString [inputOutput]

// reference="" SFString [inputOutput]

// value=""     MFFloat  [inputOutput]

// />

void X3DImporter::readMetadataFloat(XmlNode &node) {

    std::string def, use;

    std::string name, reference;

    std::vector<float> value;

    X3DNodeElementBase *ne(nullptr);

    MACRO_ATTRREAD_CHECKUSEDEF_RET(node, def, use);

    XmlParser::getStdStrAttribute(node, "name", name);

    XmlParser::getStdStrAttribute(node, "reference", reference);

    X3DXmlHelper::getFloatArrayAttribute(node, "value", value);

    MACRO_METADATA_FINDCREATE(node, def, use, reference, value, ne, X3DNodeElementMetaFloat, "MetadataFloat", ENET_MetaFloat);

}

// <MetadataInteger

// DEF=""       ID

// USE=""       IDREF

// name=""      SFString  [inputOutput]

// reference="" SFString  [inputOutput]

// value=""     MFInteger [inputOutput]

// />

void X3DImporter::readMetadataInteger(XmlNode &node) {

    std::string def, use;

    std::string name, reference;

    std::vector<int32_t> value;

    X3DNodeElementBase *ne(nullptr);

    MACRO_ATTRREAD_CHECKUSEDEF_RET(node, def, use);

    XmlParser::getStdStrAttribute(node, "name", name);

    XmlParser::getStdStrAttribute(node, "reference", reference);

    X3DXmlHelper::getInt32ArrayAttribute(node, "value", value);

    MACRO_METADATA_FINDCREATE(node, def, use, reference, value, ne, X3DNodeElementMetaInt, "MetadataInteger", ENET_MetaInteger);

}

// <MetadataSet

// DEF=""       ID

// USE=""       IDREF

// name=""      SFString [inputOutput]

// reference="" SFString [inputOutput]

// />

void X3DImporter::readMetadataSet(XmlNode &node) {

    std::string def, use;

    std::string name, reference;

    X3DNodeElementBase *ne(nullptr);

    MACRO_ATTRREAD_CHECKUSEDEF_RET(node, def, use);

    XmlParser::getStdStrAttribute(node, "name", name);

    XmlParser::getStdStrAttribute(node, "reference", reference);

    // if "USE" defined then find already defined element.

    if (!use.empty()) {

        ne = MACRO_USE_CHECKANDAPPLY(node, def, use, ENET_MetaSet, ne);

    } else {

        ne = new X3DNodeElementMetaSet(mNodeElementCur);

        if (!def.empty()) ne->ID = def;

        ((X3DNodeElementMetaSet *)ne)->Reference = reference;

        // also metadata node can contain children

        if (!isNodeEmpty(node))

            childrenReadMetadata(node, ne, "MetadataSet");

        else

            mNodeElementCur->Children.push_back(ne); // made object as child to current element

        NodeElement_List.push_back(ne); // add new element to elements list.

    } // if(!use.empty()) else

}

// <MetadataString

// DEF=""       ID

// USE=""       IDREF

// name=""      SFString [inputOutput]

// reference="" SFString [inputOutput]

// value=""     MFString [inputOutput]

// />

void X3DImporter::readMetadataString(XmlNode &node) {

    std::string def, use;

    std::string name, reference;

    std::vector<std::string> value;

    X3DNodeElementBase *ne(nullptr);

    MACRO_ATTRREAD_CHECKUSEDEF_RET(node, def, use);

    XmlParser::getStdStrAttribute(node, "name", name);

    XmlParser::getStdStrAttribute(node, "reference", reference);

    X3DXmlHelper::getStringArrayAttribute(node, "value", value);

    MACRO_METADATA_FINDCREATE(node, def, use, reference, value, ne, X3DNodeElementMetaString, "MetadataString", ENET_MetaString);

}

}// namespace Assimp

#endif // !ASSIMP_BUILD_NO_X3D_IMPORTER