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#pragma once
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#ifndef TPARAMCONTAINER_INCLUDED
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#define TPARAMCONTAINER_INCLUDED
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#include <memory></memory>
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#include "tparam.h"
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// #include "tfx.h"
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#include "tcommon.h"
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#undef DVAPI
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#undef DVVAR
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#ifdef TPARAM_EXPORTS
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#define DVAPI DV_EXPORT_API
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#define DVVAR DV_EXPORT_VAR
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#else
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#define DVAPI DV_IMPORT_API
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#define DVVAR DV_IMPORT_VAR
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#endif
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class TIStream;
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class TOStream;
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class TParamObserver;
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class TParam;
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class DVAPI TParamVar {
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  std::string m_name;
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  // hidden parameter will be hidden from the fx settings or the function editor
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  bool m_isHidden;
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  // Flag for an obsolete parameter used for maintaining backward-compatiblity.
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  // - The obsolete parameter will call a special function
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  // (TFx::onObsoleteParameterLoaded) on loaded which enables to do some special
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  // action. (e.g. converting to a new parameter etc.)
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  // - The obsolete parameter will not be saved.
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  bool m_isObsolete;
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  TParamObserver *m_paramObserver;
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public:
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  TParamVar(std::string name, bool hidden = false, bool obsolete = false)
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      : m_name(name)
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      , m_isHidden(hidden)
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      , m_isObsolete(obsolete)
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      , m_paramObserver(0) {}
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  virtual ~TParamVar() {}
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  virtual TParamVar *clone() const = 0;
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  std::string getName() const { return m_name; }
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  bool isHidden() const { return m_isHidden; }
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  void setIsHidden(bool hidden) { m_isHidden = hidden; }
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  bool isObsolete() const { return m_isObsolete; }
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  virtual void setParam(TParam *param) = 0;
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  virtual TParam *getParam() const     = 0;
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  void setParamObserver(TParamObserver *obs);
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};
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template <class t=""></class>
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class TParamVarT final : public TParamVar {
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  // Very dirty fix for link fx, separating the variable between the plugin fx
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  // and the built-in fx.
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  // Note that for now link fx is available only with built-in fx, since m_var
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  // must be "pointer to pointer" of parameter to make the link fx to work
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  // properly.
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  T *m_var            = nullptr;
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  TParamP m_pluginVar = 0;
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public:
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  TParamVarT(std::string name, T *var = nullptr, TParamP pluginVar = 0,
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             bool hidden = false, bool obsolete = false)
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      : TParamVar(name, hidden, obsolete), m_var(var), m_pluginVar(pluginVar) {}
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  TParamVarT() = delete;
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  void setParam(TParam *param) {
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    if (m_var)
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      *m_var = TParamP(param);
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    else
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      m_pluginVar = TParamP(param);
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  }
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  virtual TParam *getParam() const {
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    if (m_var)
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      return m_var->getPointer();
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    else
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      return m_pluginVar.getPointer();
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  }
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  TParamVar *clone() const {
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    return new TParamVarT<t>(getName(), m_var, m_pluginVar, isHidden(),</t>
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                             isObsolete());
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  }
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};
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class DVAPI TParamContainer {
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  class Imp;
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  std::unique_ptr<imp> m_imp;</imp>
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public:
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  TParamContainer();
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  ~TParamContainer();
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  void add(TParamVar *var);
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  int getParamCount() const;
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  bool isParamHidden(int index) const;
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  TParam *getParam(int index) const;
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  std::string getParamName(int index) const;
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  TParam *getParam(std::string name) const;
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  TParamVar *getParamVar(std::string name) const;
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  const TParamVar *getParamVar(int index) const;
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  void unlink();
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  void link(const TParamContainer *src);
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  void copy(const TParamContainer *src);
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  void setParamObserver(TParamObserver *);
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  TParamObserver *getParamObserver() const;
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private:
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  TParamContainer(const TParamContainer &);
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  TParamContainer &operator=(const TParamContainer &);
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};
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#endif