~thumper/nux/next-changes

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#include "Nux.h"
#include "Timeline.h"
#include "TimelineEasings.h"

namespace nux
{
  TimelineEaseInOutQuad::TimelineEaseInOutQuad (unsigned int msecs, const TCHAR *Caption, NUX_FILE_LINE_DECL)
    :   Timeline (msecs, Caption, NUX_FILE_LINE_PARAM)
  {
  }

  double TimelineEaseInOutQuad::GetEasing ()
  {
    double prog = GetProgress ();
    prog *= 2.0;
    if (prog < 1)
    {
      return (prog * prog) * 0.5;
    }

    prog -= 1.0;

    return -0.5 * (prog * (prog - 2) - 1);
  }


  TimelineEaseInQuad::TimelineEaseInQuad (unsigned int msecs, const TCHAR *Caption, NUX_FILE_LINE_DECL)
    :   Timeline (msecs, Caption, NUX_FILE_LINE_PARAM)
  {
  }

  double TimelineEaseInQuad::GetEasing ()
  {
    double prog = GetProgress ();
    return prog * prog;
  }


  TimelineEaseOutQuad::TimelineEaseOutQuad (unsigned int msecs, const TCHAR *Caption, NUX_FILE_LINE_DECL)
    :   Timeline (msecs, Caption, NUX_FILE_LINE_PARAM)
  {
  }

  double TimelineEaseOutQuad::GetEasing ()
  {
    double prog = GetProgress ();
    return -1.0 * prog * (prog - 2);
  }

  TimelineEaseInOutCubic::TimelineEaseInOutCubic (unsigned int msecs, const TCHAR *Caption, NUX_FILE_LINE_DECL)
    :   Timeline (msecs, Caption, NUX_FILE_LINE_PARAM)
  {
  }


  double TimelineEaseInOutCubic::GetEasing ()
  {
    double prog = GetProgress ();
    prog *= 2.0;

    if (prog < 1)
      {
        return (prog * prog * prog) * 0.5;
      }

    prog -= 2.0;
    return 0.5 * (prog * prog * prog + 2.0);
  }

  TimelineEaseInCubic::TimelineEaseInCubic (unsigned int msecs, const TCHAR *Caption, NUX_FILE_LINE_DECL)
    :   Timeline (msecs, Caption, NUX_FILE_LINE_PARAM)
  {
  }


  double TimelineEaseInCubic::GetEasing ()
  {
    double prog = GetProgress ();
    return prog * prog * prog;
  }

  TimelineEaseOutCubic::TimelineEaseOutCubic (unsigned int msecs, const TCHAR *Caption, NUX_FILE_LINE_DECL)
    :   Timeline (msecs, Caption, NUX_FILE_LINE_PARAM)
  {
  }


  double TimelineEaseOutCubic::GetEasing ()
  {
    double prog = GetProgress ();
    prog -= 1.0;
    return prog * prog * prog + 1.0;
  }
}