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/*******************************************************************************
Copyright (c) 2012, Jonathan Hiller
This file is part of the AMF Tools suite. http://amf.wikispaces.com/
AMF Tools 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, either version 3 of the License, or (at your option) any later version.
AMF Tools 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.
See <http://www.opensource.org/licenses/lgpl-3.0.html> for license details.
*******************************************************************************/
#ifndef NMATERIAL_H
#define NMATERIAL_H
#include <string>
#include <vector>
#include "nColor.h"
#include "nComposite.h"
#include "nMetadata.h"
class CXmlStreamWrite;
class CXmlStreamRead;
class nMaterial
{
public:
nMaterial(nAmf* pnAmfIn);
~nMaterial(void);
nMaterial(const nMaterial& In) {*this = In;} //copy constructor
nMaterial& operator=(const nMaterial& In); //overload Equals
void Clear(void);
//XML read/write
bool WriteXML(CXmlStreamWrite* pXML, std::string* pMessage = 0);
bool ReadXML(CXmlStreamRead* pXML, nAmf* pAmf, bool StrictLoad=true, std::string* pMessage = 0);
bool CheckValid(nAmf* pAmf, bool FixNode=true, std::string* pMessage = 0);
//required attributes
int aID;
//required tags
std::vector<nComposite> Composites;
//optional tags
bool ColorExists;
nColor Color;
std::vector<nMetadata> Metadata;
//utilities
int GetNumComposites() {return (int) Composites.size();}
void SetName(std::string NewName);
std::string GetName(void);
void SetConstColor(double RIn, double GIn, double BIn, double AIn = 1.0) {if (aID!=0){Color.SetConstColor(RIn, GIn, BIn, AIn); ColorExists = true;}}
void GetConstColor(double* rOut, double* gOut, double* bOut) {GetColorAt(0,0,0, rOut, gOut, bOut);}
void GetColorAt(double xIn, double yIn, double zIn, double* rOut, double* gOut, double* bOut, double* aOut = NULL);
//add and delete composite function are in the top level nAmf class to allow us to enforce no recursion
//composite is only ever a sub of material, but needs functions here to check against recursion...
int AddCompositeInstance(int InstanceMaterialID = 0, std::string AmfEquationIn = "1", std::string* pMessage = 0); //returns the index.
void DeleteCompositeInstance(int CompositeIndex);
bool IsReferencedBy(nMaterial* pMaterialCheck); //returns true if pUsesCheck references this material anywhere in its tree.
nAmf* pnAmf; //need to keep pointer to AMF to recurse in composite tags...
};
#endif //NMATERIAL_H
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