Inventor/SbDelegate.h

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**=======================================================================*/
/*=======================================================================
** Author      : Thibaut Andrieu (Mar 2015)
**=======================================================================*/

#ifndef  _SB_DELEGATE_H_
#define  _SB_DELEGATE_H_

#include <Inventor/SbDelegatePtrFunImpl.h>
#include <Inventor/SbDelegateMemberFunImpl.h>
namespace inventor
{
namespace helper
{

template<typename ReturnType, typename ArgType>

{
public:

  SbDelegate()
  {
  }

  SbDelegate( const SbDelegate<ReturnType, ArgType>& other )
  : m_delegateImpl ( other.m_delegateImpl->clone() )
  {
  }

  SbDelegate(ReturnType (*f)(ArgType))
  {
    if ( f != NULL )
      m_delegateImpl = new inventor::impl::SbDelegatePtrFunImpl<ReturnType, ArgType>(f);
    else
      m_delegateImpl = NULL;
  }

  template<typename ClassType>
  SbDelegate(ClassType& a, ReturnType (ClassType::*f)(ArgType))
  {
    if ( f != NULL )
      m_delegateImpl = new inventor::impl::SbDelegateMemberFunImpl<ReturnType, ArgType, ClassType>(a, f);
    else
      m_delegateImpl = NULL;
  }

  ReturnType operator()(ArgType arg) const
  {
    if ( m_delegateImpl.ptr() != NULL )
      return m_delegateImpl->call(arg);
    else
      return ReturnType();
  }

  bool equal(ReturnType (*f)(ArgType)) const
  {
    if ( m_delegateImpl.ptr() == NULL )
      return (f == NULL);

    inventor::impl::SbDelegatePtrFunImpl<ReturnType, ArgType>* delegatePtrFun = dynamic_cast< inventor::impl::SbDelegatePtrFunImpl<ReturnType, ArgType>* >(m_delegateImpl.ptr());
    if ( delegatePtrFun != NULL )
      return delegatePtrFun->equal(f);

    return false;
  }

  template<typename ClassType>
  bool equal(ClassType& a, ReturnType (ClassType::*f)(ArgType)) const
  {
    if ( m_delegateImpl.ptr() == NULL )
      return (f == NULL);

    inventor::impl::SbDelegateMemberFunImpl<ReturnType, ArgType, ClassType>* delegateMemberFun = NULL;
    delegateMemberFun = dynamic_cast< inventor::impl::SbDelegateMemberFunImpl<ReturnType, ArgType, ClassType>* >(m_delegateImpl.ptr());
    if ( delegateMemberFun != NULL )
      return delegateMemberFun->equal(a, f);
    else
      return false;
  }

private:

  SoRef< inventor::impl::SbDelegateImpl<ReturnType, ArgType> > m_delegateImpl;
};

} // helper
} // inventor
#endif // _SB_DELEGATE_H_

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Open Inventor Toolkit reference manual, generated on 15 Mar 2023
Copyright © Thermo Fisher Scientific All rights reserved. http://www.openinventor.com/