/// \file X3DImporter_Texturing.cpp
/// \brief Parsing data from nodes of "Texturing" set of X3D.
/// \date 2015-2016
/// \author nevorek@gmail.com

#ifndef ASSIMP_BUILD_NO_X3D_IMPORTER

#include "X3DImporter.hpp"
#include "X3DImporter_Macro.hpp"

namespace Assimp
{

// <ImageTexture
// DEF=""         ID
// USE=""         IDREF
// repeatS="true" SFBool
// repeatT="true" SFBool
// url=""         MFString
// />
// When the url field contains no values ([]), texturing is disabled.
void X3DImporter::ParseNode_Texturing_ImageTexture()
{
std::string use, def;
bool repeatS = true;
bool repeatT = true;
std::list<std::string> url;
CX3DImporter_NodeElement* ne;

	MACRO_ATTRREAD_LOOPBEG;
		MACRO_ATTRREAD_CHECKUSEDEF_RET(def, use);
		MACRO_ATTRREAD_CHECK_RET("repeatS", repeatS, XML_ReadNode_GetAttrVal_AsBool);
		MACRO_ATTRREAD_CHECK_RET("repeatT", repeatT, XML_ReadNode_GetAttrVal_AsBool);
		MACRO_ATTRREAD_CHECK_REF("url", url, XML_ReadNode_GetAttrVal_AsListS);
	MACRO_ATTRREAD_LOOPEND;

	// if "USE" defined then find already defined element.
	if(!use.empty())
	{
		MACRO_USE_CHECKANDAPPLY(def, use, ENET_ImageTexture, ne);
	}
	else
	{
		// create and if needed - define new geometry object.
		ne = new CX3DImporter_NodeElement_ImageTexture(NodeElement_Cur);
		if(!def.empty()) ne->ID = def;

		((CX3DImporter_NodeElement_ImageTexture*)ne)->RepeatS = repeatS;
		((CX3DImporter_NodeElement_ImageTexture*)ne)->RepeatT = repeatT;
		// Attribute "url" can contain list of strings. But we need only one - first.
		if(url.size() > 0)
			((CX3DImporter_NodeElement_ImageTexture*)ne)->URL = url.front();
		else
			((CX3DImporter_NodeElement_ImageTexture*)ne)->URL = "";

		// check for X3DMetadataObject childs.
		if(!mReader->isEmptyElement())
			ParseNode_Metadata(ne, "ImageTexture");
		else
			NodeElement_Cur->Child.push_back(ne);// add made object as child to current element

		NodeElement_List.push_back(ne);// add element to node element list because its a new object in graph
	}// if(!use.empty()) else
}

// <TextureCoordinate
// DEF=""      ID
// USE=""      IDREF
// point=""    MFVec3f [inputOutput]
// />
void X3DImporter::ParseNode_Texturing_TextureCoordinate()
{
std::string use, def;
std::list<aiVector2D> point;
CX3DImporter_NodeElement* ne;

	MACRO_ATTRREAD_LOOPBEG;
		MACRO_ATTRREAD_CHECKUSEDEF_RET(def, use);
		MACRO_ATTRREAD_CHECK_REF("point", point, XML_ReadNode_GetAttrVal_AsListVec2f);
	MACRO_ATTRREAD_LOOPEND;

	// if "USE" defined then find already defined element.
	if(!use.empty())
	{
		MACRO_USE_CHECKANDAPPLY(def, use, ENET_TextureCoordinate, ne);
	}
	else
	{
		// create and if needed - define new geometry object.
		ne = new CX3DImporter_NodeElement_TextureCoordinate(NodeElement_Cur);
		if(!def.empty()) ne->ID = def;

		((CX3DImporter_NodeElement_TextureCoordinate*)ne)->Value = point;
		// check for X3DMetadataObject childs.
		if(!mReader->isEmptyElement())
			ParseNode_Metadata(ne, "TextureCoordinate");
		else
			NodeElement_Cur->Child.push_back(ne);// add made object as child to current element

		NodeElement_List.push_back(ne);// add element to node element list because its a new object in graph
	}// if(!use.empty()) else
}

// <TextureTransform
// DEF=""            ID
// USE=""            IDREF
// center="0 0"      SFVec2f [inputOutput]
// rotation="0"      SFFloat [inputOutput]
// scale="1 1"       SFVec2f [inputOutput]
// translation="0 0" SFVec2f [inputOutput]
// />
void X3DImporter::ParseNode_Texturing_TextureTransform()
{
std::string use, def;
aiVector2D center(0, 0);
float rotation = 0;
aiVector2D scale(1, 1);
aiVector2D translation(0, 0);
CX3DImporter_NodeElement* ne;

	MACRO_ATTRREAD_LOOPBEG;
		MACRO_ATTRREAD_CHECKUSEDEF_RET(def, use);
		MACRO_ATTRREAD_CHECK_REF("center", center, XML_ReadNode_GetAttrVal_AsVec2f);
		MACRO_ATTRREAD_CHECK_RET("rotation", rotation, XML_ReadNode_GetAttrVal_AsFloat);
		MACRO_ATTRREAD_CHECK_REF("scale", scale, XML_ReadNode_GetAttrVal_AsVec2f);
		MACRO_ATTRREAD_CHECK_REF("translation", translation, XML_ReadNode_GetAttrVal_AsVec2f);
	MACRO_ATTRREAD_LOOPEND;

	// if "USE" defined then find already defined element.
	if(!use.empty())
	{
		MACRO_USE_CHECKANDAPPLY(def, use, ENET_TextureTransform, ne);
	}
	else
	{
		// create and if needed - define new geometry object.
		ne = new CX3DImporter_NodeElement_TextureTransform(NodeElement_Cur);
		if(!def.empty()) ne->ID = def;

		((CX3DImporter_NodeElement_TextureTransform*)ne)->Center = center;
		((CX3DImporter_NodeElement_TextureTransform*)ne)->Rotation = rotation;
		((CX3DImporter_NodeElement_TextureTransform*)ne)->Scale = scale;
		((CX3DImporter_NodeElement_TextureTransform*)ne)->Translation = translation;
		// check for X3DMetadataObject childs.
		if(!mReader->isEmptyElement())
			ParseNode_Metadata(ne, "TextureTransform");
		else
			NodeElement_Cur->Child.push_back(ne);// add made object as child to current element

		NodeElement_List.push_back(ne);// add element to node element list because its a new object in graph
	}// if(!use.empty()) else
}

}// namespace Assimp

#endif // !ASSIMP_BUILD_NO_X3D_IMPORTER