vtkRenderMaterialLibrary.h

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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
 
#ifndef vtkRenderMaterialLibrary_h
#define vtkRenderMaterialLibrary_h
 
#include "vtkObject.h"
#include "vtkRenderingCoreModule.h" // For export macro
#include "vtkWrappingHints.h"       // For VTK_MARSHALAUTO
 
#include <initializer_list>
#include <iosfwd>
#include <map>
#include <set>
#include <string>
#include <vector>
 
VTK_ABI_NAMESPACE_BEGIN
class vtkRenderMaterialLibraryInternals;
class vtkTexture;
struct TextureInfo;
 
class VTKRENDERINGCORE_EXPORT VTK_MARSHALAUTO vtkRenderMaterialLibrary : public vtkObject
{
public:
  static vtkRenderMaterialLibrary* New();
  vtkTypeMacro(vtkRenderMaterialLibrary, vtkObject);
  void PrintSelf(ostream& os, vtkIndent indent) override;
 
  enum class ParameterType
  {
    FLOAT,
    FLOAT_DATA,
    COLOR_RGB,
    COLOR_RGBA,
    VEC2,
    VEC3,
    VEC4,
    BOOLEAN,
    INT,
    TEXTURE,
    NORMALIZED_FLOAT
  };
 
  using ParametersMap = std::map<std::string, ParameterType>;

  bool ReadFile(const char* FileName);

  bool ReadBuffer(const char* Buffer);

  const std::set<std::string>& GetMaterialNames() const;

  std::string LookupImplName(const std::string& nickname) const;

  std::vector<std::string> GetDoubleShaderVariableList(const std::string& nickname) const;

  virtual std::vector<double> GetDoubleShaderVariable(
    const std::string& nickname, const std::string& varname) const;

  std::vector<std::string> GetTextureList(const std::string& nickname) const;

  vtkTexture* GetTexture(const std::string& nickname, const std::string& varname) const;

  virtual const TextureInfo* GetTextureInfo(
    const std::string& nickname, const std::string& varname) const;

  std::string GetTextureName(const std::string& nickname, const std::string& varname) const;

  std::string GetTextureFilename(const std::string& nickname, const std::string& varname) const;

  virtual void AddMaterial(const std::string& nickname, const std::string& implname);

  void RemoveMaterial(const std::string& nickname);

  virtual void AddTexture(const std::string& nickname, const std::string& varname, vtkTexture* tex,
    const std::string& texturename = "unnamedTexture", const std::string& filename = "");

  virtual void AddShaderVariable(
    const std::string& nickname, const std::string& variablename, int numVars, const double* x);

  void AddShaderVariable(const std::string& nickname, const std::string& variablename,
    const std::initializer_list<double>& data)
  {
    this->AddShaderVariable(nickname, variablename, static_cast<int>(data.size()), data.begin());
  }

  void RemoveShaderVariable(const std::string& nickname, const std::string& variablename);

  void RemoveAllShaderVariables(const std::string& nickname);

  void RemoveTexture(const std::string& nickname, const std::string& varname);

  void RemoveAllTextures(const std::string& nickname);

  const char* WriteBuffer(bool writeImageInline = true);

  void WriteFile(const std::string& filename, bool writeImageInline = false);
 
protected:
  virtual bool ReadTextureFileOrData(const std::string& texFilenameOrData, bool fromfile,
    const std::string& parentDir, vtkTexture* textr, std::string& textureName,
    std::string& textureFilename);
 
  bool InternalParse(const char* filename, bool fromfile);
  virtual bool InternalParseJSON(const char* filename, bool fromfile, std::istream* doc);
  bool InternalParseMTL(const char* filename, bool fromfile, std::istream* doc);
 
  virtual const std::map<std::string, ParametersMap>& GetParametersDictionary() const;

  std::string FilePathToTextureName(const std::string& path);

  std::string Trim(const std::string& s);
 
  vtkRenderMaterialLibrary();
  ~vtkRenderMaterialLibrary() override;
 
  virtual const char* GetFamilyName() const { return "Generic"; }
  virtual const char* GetAcceptedFamilyName() const { return nullptr; }
  std::string InternalGetImplName(const std::string& nickname) const;
 
private:
  vtkRenderMaterialLibrary(const vtkRenderMaterialLibrary&) = delete;
  void operator=(const vtkRenderMaterialLibrary&) = delete;
 
  vtkRenderMaterialLibraryInternals* Internal;
};
 
VTK_ABI_NAMESPACE_END
#endif