ProgressHandler.hpp

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/*
Open Asset Import Library (assimp)
----------------------------------------------------------------------

Copyright (c) 2006-2017, assimp team

All rights reserved.

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* Redistributions of source code must retain the above
  copyright notice, this list of conditions and the
  following disclaimer.

* Redistributions in binary form must reproduce the above
  copyright notice, this list of conditions and the
  following disclaimer in the documentation and/or other
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"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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*/

#pragma once
#ifndef AI_PROGRESSHANDLER_H_INC
#define AI_PROGRESSHANDLER_H_INC

#include "types.h"

namespace Assimp    {

// ------------------------------------------------------------------------------------
class ASSIMP_API ProgressHandler
#ifndef SWIG
    : public Intern::AllocateFromAssimpHeap
#endif
{
protected:
    ProgressHandler () {
    }
public:
    virtual ~ProgressHandler () {
    }

    // -------------------------------------------------------------------
    virtual bool Update(float percentage = -1.f) = 0;

    // -------------------------------------------------------------------
    virtual void UpdateFileRead(int currentStep /*= 0*/, int numberOfSteps /*= 0*/) {
        float f = numberOfSteps ? currentStep / (float)numberOfSteps : 1.0f;
        Update( f * 0.5f );
    }

    // -------------------------------------------------------------------
    virtual void UpdatePostProcess(int currentStep /*= 0*/, int numberOfSteps /*= 0*/) {
        float f = numberOfSteps ? currentStep / (float)numberOfSteps : 1.0f;
        Update( f * 0.5f + 0.5f );
    }

}; // !class ProgressHandler
// ------------------------------------------------------------------------------------
} // Namespace Assimp

#endif // AI_PROGRESSHANDLER_H_INC