CWE-ou-minkata/Sources/Tools/MaxExport/plProgressBar.h

/*==LICENSE==*

CyanWorlds.com Engine - MMOG client, server and tools
Copyright (C) 2011  Cyan Worlds, Inc.

This program is free software: you can redistribute it and/or modify
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Additional permissions under GNU GPL version 3 section 7

If you modify this Program, or any covered work, by linking or
combining it with any of RAD Game Tools Bink SDK, Autodesk 3ds Max SDK,
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*==LICENSE==*/
// plProgressBar.h
#ifndef plProgressBar_inc
#define plProgressBar_inc

#include "HeadSpin.h"


// The progress bar displays an amount that's *fraction* of the distance between min and max.
// i.e., if min is 0.2 and max is 0.7, the bar will run the gamut from min to max; at fraction
// 0.8, it will display 0.6 ( = 0.2 + 0.8 * (0.7 - 0.2)).

// The bar runs from 0 to 1 and all values should be in that range.
class plProgressBar
{
public:
    plProgressBar(float min, float max) : fMin(min), fMax(max) 
    { 
          hsAssert(min >= 0, "Min too small.");
          hsAssert(min <= 1, "Min too big.");
          hsAssert(max >= 0, "Max too small.");
          hsAssert(max <= 1, "Max too big.");
          hsAssert(min <= max, "Min and max out of order.");
    }

    virtual hsBool32 Update(float fraction) = 0;

    float GetTotalFraction(float f) const { return fMin + f * (fMax - fMin); }

private:
    float fMin;
    float fMax;
};

#endif // plProgressBar_inc