// TnzCore includes

#include "tstream.h"

#include "tconvert.h"

#include "tsystem.h"

#include "tcubicbezier.h"

#include "tundo.h"

// TnzBase includes

#include "tdoublekeyframe.h"

#include "tdoubleparamfile.h"

#include "texpression.h"

#include "tgrammar.h"

#include "tparser.h"

#include "tunit.h"

// STD includes

#include <set></set>

#include "tdoubleparam.h"

using namespace std;

//===============================

class TActualDoubleKeyframe final : public TDoubleKeyframe {

public:

  mutable TExpression m_expression;

  mutable TDoubleParamFileData m_fileData;

  TActualDoubleKeyframe(double frame = 0, double value = 0)

      : TDoubleKeyframe(frame, value), m_unit(0) {}

  explicit TActualDoubleKeyframe(const TDoubleKeyframe &src) : m_unit(0) {

    TDoubleKeyframe::operator=(src);

    if (m_type == Expression || m_type == SimilarShape)

      m_expression.setText(m_expressionText);

    else if (m_type == File)

      m_fileData.setParams(m_fileParams);

  }

  TActualDoubleKeyframe &operator=(const TDoubleKeyframe &src) {

    TDoubleKeyframe::operator=(src);

    m_unit                   = 0;

    if (m_type == Expression || m_type == SimilarShape) {

      m_expression.setText(m_expressionText);

    } else if (m_type == File) {

      m_fileData.setParams(m_fileParams);

    }

    return *this;

  }

  const TUnit *updateUnit(const TMeasure *measure) {

    if (!measure) {

      m_unit     = 0;

      m_unitName = "";

    } else {

      if (m_unitName != "")

        m_unit = measure->getUnit(::to_wstring(m_unitName));

      else

        m_unit = 0;

      if (!m_unit) {

        m_unit = measure->getCurrentUnit();

        if (m_unit) {

          QString app = QString::fromStdWString(m_unit->getDefaultExtension());

          m_unitName  = app.toStdString();

        }

      }

    }

    assert(measure || m_unit == 0 && m_unitName == "");

    assert((m_unit == 0) == (m_unitName == ""));

    QString app = QString::fromStdString(m_unitName);

    assert(m_unit == 0 || m_unit->isExtension(app.toStdWString()));

    return m_unit;

  }

  double convertFrom(TMeasure *measure, double value) const {

    if (!m_unit) const_cast<tactualdoublekeyframe *="">(this)->updateUnit(measure);</tactualdoublekeyframe>

    if (m_unit) value = m_unit->convertFrom(value);

    return value;

  }

private:

  mutable const TUnit *m_unit;

};

typedef vector<tactualdoublekeyframe> DoubleKeyframeVector;</tactualdoublekeyframe>

//===================================================================

inline double getConstantValue(const TActualDoubleKeyframe &k0,

                               const TActualDoubleKeyframe &k1, double f) {

  return (f == k1.m_frame) ? k1.m_value : k0.m_value;

}

//---------------------------------------------------------

inline double getLinearValue(const TActualDoubleKeyframe &k0,

                             const TActualDoubleKeyframe &k1, double f) {

  return k0.m_value +

         (f - k0.m_frame) * (k1.m_value - k0.m_value) /

             (k1.m_frame - k0.m_frame);

}

//---------------------------------------------------------

static void truncateSpeeds(double aFrame, double bFrame, TPointD &aSpeedTrunc,

                           TPointD &bSpeedTrunc) {

  double deltaX                        = bFrame - aFrame;

  if (aSpeedTrunc.x < 0) aSpeedTrunc.x = 0;

  if (bSpeedTrunc.x > 0) bSpeedTrunc.x = 0;

  if (aFrame + aSpeedTrunc.x > bFrame) {

    if (aSpeedTrunc.x != 0) {

      aSpeedTrunc = aSpeedTrunc * (deltaX / aSpeedTrunc.x);

    }

  }

  if (bFrame + bSpeedTrunc.x < aFrame) {

    if (bSpeedTrunc.x != 0) {

      bSpeedTrunc = -bSpeedTrunc * (deltaX / bSpeedTrunc.x);

    }

  }

}

//---------------------------------------------------------

inline double getSpeedInOutValue(const TActualDoubleKeyframe &k0,

                                 const TActualDoubleKeyframe &k1,

                                 const TPointD &speed0, const TPointD &speed1,

                                 double frame) {

  double aFrame = k0.m_frame;

  double bFrame = k1.m_frame;

  double aValue = k0.m_value;

  double bValue = k1.m_value;

  if (frame <= aFrame)

    return aValue;

  else if (frame >= bFrame)

    return bValue;

  TPointD aSpeedTrunc = speed0;

  TPointD bSpeedTrunc = speed1;

  truncateSpeeds(aFrame, bFrame, aSpeedTrunc, bSpeedTrunc);

  return getCubicBezierY(frame, TPointD(aFrame, aValue), aSpeedTrunc,

                         bSpeedTrunc, TPointD(bFrame, bValue));

}

//---------------------------------------------------------

DV_EXPORT_API void splitSpeedInOutSegment(TDoubleKeyframe &k,

                                          TDoubleKeyframe &k0,

                                          TDoubleKeyframe &k1) {

  if (k.m_frame <= k0.m_frame) {

    k = k0;

    return;

  } else if (k.m_frame >= k1.m_frame) {

    k = k1;

    return;

  }

  TPointD aSpeed = k0.m_speedOut;

  TPointD bSpeed = k1.m_speedIn;

  truncateSpeeds(k0.m_frame, k1.m_frame, aSpeed, bSpeed);

  TPointD p0(k0.m_frame, k0.m_value);

  TPointD p3(k1.m_frame, k1.m_value);

  TPointD p1 = p0 + aSpeed;

  TPointD p2 = p3 + bSpeed;

  double t   = invCubicBezierX(k.m_frame, p0, aSpeed, bSpeed, p3);

  t          = tcrop(t, 0.0, 1.0);

  TPointD p01 = (1 - t) * p0 + t * p1;

  TPointD p12 = (1 - t) * p1 + t * p2;

  TPointD p23 = (1 - t) * p2 + t * p3;

  TPointD p012 = (1 - t) * p01 + t * p12;

  TPointD p123 = (1 - t) * p12 + t * p23;

  TPointD p = (1 - t) * p012 + t * p123;

  assert(fabs(p.x - k.m_frame) < 0.1e-3);

  k.m_value = p.y;

  k0.m_speedOut = p01 - p0;

  k.m_speedIn   = p012 - p;

  k.m_speedOut  = p123 - p;

  k1.m_speedIn  = p23 - p3;

}

//---------------------------------------------------------

inline double getEaseInOutValue(const TActualDoubleKeyframe &k0,

                                const TActualDoubleKeyframe &k1, double frame,

                                bool percentage) {

  double x3 = k1.m_frame - k0.m_frame;

  if (x3 <= 0.0) return k0.m_value;

  double x = frame - k0.m_frame;

  if (x <= 0)

    return k0.m_value;

  else if (x >= x3)

    return k1.m_value;

  double e0 = std::max(k0.m_speedOut.x, 0.0);

  double e1 = std::max(-k1.m_speedIn.x, 0.0);

  if (percentage) {

    e0 *= x3 * 0.01;

    e1 *= x3 * 0.01;

  }

  if (e0 + e1 >= x3) {

    double x = tcrop((e0 + x3 - e1) / 2, 0.0, x3);

    e0       = x;

    e1       = x3 - x;

  }

  double x1 = e0, x2 = x3 - e1;

  if (0 < x1 - x2 && x1 - x2 < 0.1e-5)

    x1 = x2 = (x1 + x2) * 0.5;  // against rounding problems

  assert(0 <= x1 && x1 <= x2 && x2 <= x3);

  double v     = 2 / (x3 + x2 - x1);

  double value = 0;

  if (x < x1) {

    double a = v / e0;

    value    = 0.5 * a * x * x;

  } else if (x > x2) {

    double a = v / e1;

    value    = 1 - 0.5 * a * (x3 - x) * (x3 - x);

  } else {

    double c = -0.5 * v * e0;

    value    = x * v + c;

  }

  return (1 - value) * k0.m_value + value * k1.m_value;

}

//---------------------------------------------------------

inline double getExponentialValue(const TActualDoubleKeyframe &k0,

                                  const TActualDoubleKeyframe &k1,

                                  double frame) {

  double aFrame = k0.m_frame;

  double bFrame = k1.m_frame;

  double deltaX = bFrame - aFrame;

  double aValue = k0.m_value;

  double bValue = k1.m_value;

  // if min(aValue,bValue)<=0 => error => linear

  if (aValue <= 0 || bValue <= 0) return getLinearValue(k0, k1, frame);

  double t = (frame - aFrame) / deltaX;

  // if aValue

  // if bValue

  if (bValue < aValue) {

    t = 1 - t;

    std::swap(aValue, bValue);

  }

  return aValue * exp(t * log(bValue / aValue));

}

//---------------------------------------------------------

inline double getExpressionValue(const TActualDoubleKeyframe &k0,

                                 const TActualDoubleKeyframe &k1, double frame,

                                 const TMeasure *measure) {

  double t = 0, rframe = frame - k0.m_frame;

  if (k1.m_frame > k0.m_frame) t  = rframe / (k1.m_frame - k0.m_frame);

  TSyntax::Calculator *calculator = k0.m_expression.getCalculator();

  if (calculator) {

    calculator->setUnit(

        (const_cast<tactualdoublekeyframe &="">(k0)).updateUnit(measure));</tactualdoublekeyframe>

    return calculator->compute(t, frame + 1, rframe + 1);

  } else if (measure)

    return measure->getDefaultValue();

  else

    return 0;

}

//---------------------------------------------------------

inline double getSimilarShapeValue(const TActualDoubleKeyframe &k0,

                                   const TActualDoubleKeyframe &k1,

                                   double frame, const TMeasure *measure) {

  double offset = k0.m_similarShapeOffset;

  double rv0    = getExpressionValue(k0, k1, k0.m_frame + offset, measure);

  double rv1    = getExpressionValue(k0, k1, k1.m_frame + offset, measure);

  double rv     = getExpressionValue(k0, k1, frame + offset, measure);

  double v0     = k0.m_value;

  double v1     = k1.m_value;

  if (rv1 != rv0)

    return v0 + (v1 - v0) * (rv - rv0) / (rv1 - rv0);

  else if (measure)

    return measure->getDefaultValue();

  else

    return 0;

}

//===================================================================

class TDoubleParam::Imp {

public:

  const TSyntax::Grammar *m_grammar;

  string m_measureName;

  TMeasure *m_measure;

  double m_defaultValue, m_minValue, m_maxValue;

  DoubleKeyframeVector m_keyframes;

  bool m_cycleEnabled;

  std::set<tparamobserver *=""> m_observers;</tparamobserver>

  Imp(double v = 0.0)

      : m_grammar(0)

      , m_measureName()

      , m_measure(0)

      , m_defaultValue(v)

      , m_minValue(-(std::numeric_limits<double>::max)())</double>

      , m_maxValue((std::numeric_limits<double>::max)())</double>

      , m_cycleEnabled(false) {}

  ~Imp() {}

  void copy(std::unique_ptr<imp> const &src) {</imp>

    m_grammar      = src->m_grammar;

    m_measureName  = src->m_measureName;

    m_measure      = src->m_measure;

    m_defaultValue = src->m_defaultValue;

    m_minValue     = src->m_minValue;

    m_maxValue     = src->m_maxValue;

    m_keyframes    = src->m_keyframes;

    m_cycleEnabled = src->m_cycleEnabled;

  }

  void notify(const TParamChange &change) {

    std::set<tparamobserver *="">::iterator it = m_observers.begin();</tparamobserver>

    for (; it != m_observers.end(); ++it) (*it)->onChange(change);

  }

  double getValue(int segmentIndex, double frame);

  double getSpeed(int segmentIndex, double frame);

  TPointD getSpeedIn(int kIndex);

  TPointD getSpeedOut(int kIndex);

};

//---------------------------------------------------------

double TDoubleParam::Imp::getValue(int segmentIndex, double frame) {

  assert(0 <= segmentIndex && segmentIndex + 1 < (int)m_keyframes.size());

  const TActualDoubleKeyframe &k0 = m_keyframes[segmentIndex];

  const TActualDoubleKeyframe &k1 = m_keyframes[segmentIndex + 1];

  double value     = m_defaultValue;

  bool convertUnit = false;

  switch (k0.m_type) {

  case TDoubleKeyframe::Constant:

    value = getConstantValue(k0, k1, frame);

    break;

  case TDoubleKeyframe::Linear:

    value = getLinearValue(k0, k1, frame);

    break;

  case TDoubleKeyframe::SpeedInOut:

    value = getSpeedInOutValue(k0, k1, getSpeedOut(segmentIndex),

                               getSpeedIn(segmentIndex + 1), frame);

    break;

  case TDoubleKeyframe::EaseInOut:

    value = getEaseInOutValue(k0, k1, frame, false);

    break;

  case TDoubleKeyframe::EaseInOutPercentage:

    value = getEaseInOutValue(k0, k1, frame, true);

    break;

  case TDoubleKeyframe::Exponential:

    value = getExponentialValue(k0, k1, frame);

    break;

  case TDoubleKeyframe::Expression:

    value       = getExpressionValue(k0, k1, frame, m_measure);

    convertUnit = true;

    break;

  case TDoubleKeyframe::File:

    value       = k0.m_fileData.getValue(frame, m_defaultValue);

    convertUnit = true;

    break;

  case TDoubleKeyframe::SimilarShape:

    value = getSimilarShapeValue(k0, k1, frame, m_measure);

    break;

  default:

    break;

  }

  if (convertUnit) value = k0.convertFrom(m_measure, value);

  return value;

}

//---------------------------------------------------------

double TDoubleParam::Imp::getSpeed(int segmentIndex, double frame) {

  const double h = 0.00001;

  return (getValue(segmentIndex, frame + h) -

          getValue(segmentIndex, frame - h)) /

         (2 * h);

}

//---------------------------------------------------------

TPointD TDoubleParam::Imp::getSpeedIn(int kIndex) {

  assert(1 <= kIndex && kIndex < (int)m_keyframes.size());

  const TActualDoubleKeyframe &kf0 = m_keyframes[kIndex - 1];

  const TActualDoubleKeyframe &kf1 = m_keyframes[kIndex];

  assert(kf0.m_type == TDoubleKeyframe::SpeedInOut);

  if (!kf1.m_linkedHandles) return kf1.m_speedIn;

  TPointD speedIn = kf1.m_speedIn;

  if (kIndex + 1 >= (int)m_keyframes.size()) {

    // speedIn.y = 0;

  } else {

    if (kf1.m_type != TDoubleKeyframe::SpeedInOut &&

        (kf1.m_type != TDoubleKeyframe::Expression ||

         !kf1.m_expression.isCycling())) {

      double speed = getSpeed(kIndex, kf1.m_frame);

      speedIn.y    = speedIn.x * speed;

    }

  }

  return speedIn;

}

//---------------------------------------------------------

TPointD TDoubleParam::Imp::getSpeedOut(int kIndex) {

  assert(0 <= kIndex && kIndex < (int)m_keyframes.size());

  const TDoubleKeyframe &kf1 = m_keyframes[kIndex];

  assert(kf1.m_type == TDoubleKeyframe::SpeedInOut);

  if (!kf1.m_linkedHandles) return kf1.m_speedOut;

  TPointD speedOut = kf1.m_speedOut;

  if (kIndex == 0) {

    // speedOut.y = 0;

  } else {

    const TDoubleKeyframe &kf0 = m_keyframes[kIndex - 1];

    if (kf0.m_type != TDoubleKeyframe::SpeedInOut) {

      double speed = getSpeed(kIndex - 1, kf1.m_frame);

      speedOut.y   = speedOut.x * speed;

    }

  }

  return speedOut;

}

//---------------------------------------------------------

TPointD TDoubleParam::getSpeedIn(int kIndex) const {

  return m_imp->getSpeedIn(kIndex);

}

TPointD TDoubleParam::getSpeedOut(int kIndex) const {

  return m_imp->getSpeedOut(kIndex);

}

//=========================================================

PERSIST_IDENTIFIER(TDoubleParam, "doubleParam")

//---------------------------------------------------------

TDoubleParam::TDoubleParam(double v) : m_imp(new TDoubleParam::Imp(v)) {}

//---------------------------------------------------------

TDoubleParam::TDoubleParam(const TDoubleParam &src)

    : TParam(src.getName()), m_imp(new TDoubleParam::Imp()) {

  m_imp->copy(src.m_imp);

}

//---------------------------------------------------------

TDoubleParam::~TDoubleParam() {}

//---------------------------------------------------------

TDoubleParam &TDoubleParam::operator=(const TDoubleParam &dp) {

  setName(dp.getName());

  m_imp->copy(dp.m_imp);

  return *this;

}

//---------------------------------------------------------

void TDoubleParam::copy(TParam *src) {

  TDoubleParam *p = dynamic_cast<tdoubleparam *="">(src);</tdoubleparam>

  if (!p) throw TException("invalid source for copy");

  setName(src->getName());

  m_imp->copy(p->m_imp);

  m_imp->notify(TParamChange(this, 0, 0, true, false, false));

}

//---------------------------------------------------------

void TDoubleParam::setValueRange(double min, double max, double step) {

  if (min > max) min = max;

  m_imp->m_minValue = min;

  m_imp->m_maxValue = max;

  // m_imp->m_valueStep = step;

}

//---------------------------------------------------------

bool TDoubleParam::getValueRange(double &min, double &max, double &step) const {

  min  = m_imp->m_minValue;

  max  = m_imp->m_maxValue;

  step = 1;  // m_imp->m_valueStep;

  return min < max;

}

//---------------------------------------------------------

double TDoubleParam::getDefaultValue() const {

  assert(m_imp);

  return m_imp->m_defaultValue;

}

//---------------------------------------------------------

void TDoubleParam::enableCycle(bool enabled) {

  m_imp->m_cycleEnabled = enabled;

  m_imp->notify(TParamChange(this, 0, 0, true, false, false));

}

//---------------------------------------------------------

bool TDoubleParam::isCycleEnabled() const { return m_imp->m_cycleEnabled; }

//=========================================================

//=========================================================

double TDoubleParam::getValue(double frame, bool leftmost) const {

  double value = 0;

  assert(m_imp);

  const DoubleKeyframeVector &keyframes = m_imp->m_keyframes;

  if (keyframes.empty()) {

    // no keyframes: return the default value

    value = m_imp->m_defaultValue;

  } else if (keyframes.size() == 1) {

    // a single keyframe. Type must be keyframe based (no expression/file)

    value = keyframes[0].m_value;

  } else {

    // keyframes range is [f0,f1]

    double f0 = keyframes.begin()->m_frame;

    double f1 = keyframes.back().m_frame;

    if (frame < f0)

      frame = f0;

    else if (frame > f1 && !m_imp->m_cycleEnabled)

      frame            = f1;

    double valueOffset = 0;

    if (m_imp->m_cycleEnabled) {

      double dist   = (f1 - f0);

      double dvalue = keyframes.back().m_value - keyframes.begin()->m_value;

      while (frame >= f1) {

        if (frame != f1 || !leftmost) {

          frame -= dist;

          valueOffset += dvalue;

        } else

          break;

      }

    }

    // frame is in [f0,f1]

    assert(f0 <= frame && frame <= f1);

    DoubleKeyframeVector::const_iterator b;

    b = std::lower_bound(keyframes.begin(), keyframes.end(),

                         TDoubleKeyframe(frame));

    assert(b != keyframes.end());

    DoubleKeyframeVector::const_iterator a;

    if (b->m_frame == frame && (b + 1) != keyframes.end()) {

      a = b;

      b++;

    } else {

      assert(b != keyframes.begin());

      a = b - 1;

    }

    if (leftmost && frame - a->m_frame < 0.00001 && a != keyframes.begin()) {

      a--;

      b--;

    }

    // segment (a,b) contains frame

    assert(a != keyframes.end());

    assert(b != keyframes.end());

    assert(a->m_frame <= frame);

    assert(b->m_frame >= frame);

    int kIndex = std::distance(keyframes.begin(), a);

    vector<tactualdoublekeyframe> tmpKeyframe(3);</tactualdoublekeyframe>

    // if segment is keyframe based ....

    if (TDoubleKeyframe::isKeyframeBased(a->m_type)) {

      // .. and next segment is not then update the b value

      if ((b + 1) != keyframes.end() &&

          !TDoubleKeyframe::isKeyframeBased(b->m_type)) {

        tmpKeyframe[0] = *b;

        if (b->m_type != TDoubleKeyframe::Expression ||

            !b->m_expression.isCycling())

          tmpKeyframe[0].m_value = getValue(b->m_frame);

        b                        = tmpKeyframe.begin();

      }

      // .. and/or if prev segment is not then update the a value

      if (a != keyframes.begin() &&

          !TDoubleKeyframe::isKeyframeBased(a[-1].m_type)) {

        tmpKeyframe[1]         = *a;

        tmpKeyframe[1].m_value = getValue(a->m_frame, true);

        a                      = tmpKeyframe.begin() + 1;

      }

    }

    if (a->m_step > 1) {

      tmpKeyframe[2] = *b;

      b              = tmpKeyframe.begin() + 2;

      int relPos = tfloor(b->m_frame - a->m_frame),

          step   = std::min(a->m_step, relPos);

      tmpKeyframe[2].m_frame        = a->m_frame + tfloor(relPos, step);

      if (frame > b->m_frame) frame = b->m_frame;

      frame = a->m_frame + tfloor(tfloor(frame - a->m_frame), step);

    }

    assert(0 <= kIndex && kIndex + 1 < (int)m_imp->m_keyframes.size());

    value            = m_imp->m_defaultValue;

    bool convertUnit = false;

    switch (a->m_type) {

    case TDoubleKeyframe::Constant:

      value = getConstantValue(*a, *b, frame);

      break;

    case TDoubleKeyframe::Linear:

      value = getLinearValue(*a, *b, frame);

      break;

    case TDoubleKeyframe::SpeedInOut:

      value = getSpeedInOutValue(*a, *b, getSpeedOut(kIndex),

                                 getSpeedIn(kIndex + 1), frame);

      break;

    case TDoubleKeyframe::EaseInOut:

      value = getEaseInOutValue(*a, *b, frame, false);

      break;

    case TDoubleKeyframe::EaseInOutPercentage:

      value = getEaseInOutValue(*a, *b, frame, true);

      break;

    case TDoubleKeyframe::Exponential:

      value = getExponentialValue(*a, *b, frame);

      break;

    case TDoubleKeyframe::Expression:

      value       = getExpressionValue(*a, *b, frame, m_imp->m_measure);

      convertUnit = true;

      break;

    case TDoubleKeyframe::File:

      value       = a->m_fileData.getValue(frame, m_imp->m_defaultValue);

      convertUnit = true;

      break;

    case TDoubleKeyframe::SimilarShape:

      value = getSimilarShapeValue(*a, *b, frame, m_imp->m_measure);

      // convertUnit = true;

      break;

    default:

      value = 0.0;

    }

    value += valueOffset;

    if (convertUnit) value = a->convertFrom(m_imp->m_measure, value);

  }

  // if (cropped)

  //  value = tcrop(value, m_imp->m_minValue, m_imp->m_maxValue);

  return value;

}

//---------------------------------------------------------

bool TDoubleParam::setValue(double frame, double value) {

  assert(m_imp);

  DoubleKeyframeVector &keyframes = m_imp->m_keyframes;

  DoubleKeyframeVector::iterator it;

  TActualDoubleKeyframe k(frame);

  it           = std::lower_bound(keyframes.begin(), keyframes.end(), k);

  int index    = 0;

  bool created = false;

  /*-- キーフレームが見つかった場合 --*/

  if (it != keyframes.end() && it->m_frame == frame) {

    // changing a keyframe value

    index                             = std::distance(keyframes.begin(), it);

    TActualDoubleKeyframe oldKeyframe = *it;

    if (oldKeyframe.m_type == TDoubleKeyframe::Expression ||

        oldKeyframe.m_type == TDoubleKeyframe::File)

      return false;

    it->m_value = value;

    m_imp->notify(TParamChange(this, 0, 0, true, false, false));

  }

  /*-- セグメントの部分なので、新たにキーフレームを作る --*/

  else {

    assert(it == keyframes.end() || it->m_frame > frame);

    // can't change value in a file/expression segment

    if (it != keyframes.end() && it > keyframes.begin() &&

        ((it - 1)->m_type == TDoubleKeyframe::Expression ||

         (it - 1)->m_type == TDoubleKeyframe::File))

      return false;

    // inserting a new keyframe

    k.m_value      = value;

    k.m_isKeyframe = true;

    k.m_expression.setGrammar(m_imp->m_grammar);

    k.m_expression.setOwnerParameter(this);

    it = keyframes.insert(it, k);

    if (it == keyframes.begin())

      it->m_prevType = TDoubleKeyframe::None;

    else {

      it->m_prevType = it[-1].m_type;

      /*-- FxGuiでSegment内にKeyを打った場合は、Step値も引き継ぐ --*/

      it->m_step = it[-1].m_step;

    }

    if (it + 1 != keyframes.end()) it[1].m_prevType = it->m_type;

    index = std::distance(keyframes.begin(), it);

    m_imp->notify(TParamChange(this, 0, 0, true, false, false));

    created = true;

  }

  assert(0 == index || keyframes[index - 1].m_frame < keyframes[index].m_frame);

  assert(getKeyframeCount() - 1 == index ||

         keyframes[index + 1].m_frame > keyframes[index].m_frame);

  return created;

}

//---------------------------------------------------------

void TDoubleParam::setKeyframe(int index, const TDoubleKeyframe &k) {

  DoubleKeyframeVector &keyframes = m_imp->m_keyframes;

  assert(0 <= index && index < (int)keyframes.size());

  TActualDoubleKeyframe &dst        = keyframes[index];

  TActualDoubleKeyframe oldKeyframe = dst;

  (TDoubleKeyframe &)dst = k;

  dst.updateUnit(m_imp->m_measure);

  if (dst.m_type == TDoubleKeyframe::Expression ||

      dst.m_type == TDoubleKeyframe::SimilarShape)

    dst.m_expression.setText(dst.m_expressionText);

  if (dst.m_type == TDoubleKeyframe::File)

    dst.m_fileData.setParams(dst.m_fileParams);

  m_imp->notify(TParamChange(this, 0, 0, true, false, false));

  assert(0 == index || keyframes[index - 1].m_frame < keyframes[index].m_frame);

  assert(getKeyframeCount() - 1 == index ||

         keyframes[index + 1].m_frame > keyframes[index].m_frame);

  if (index == 0)

    dst.m_prevType = TDoubleKeyframe::None;

  else

    dst.m_prevType = keyframes[index - 1].m_type;

 if (getKeyframeCount() - 1 != index)

    keyframes[index + 1].m_prevType = dst.m_type;

}

//---------------------------------------------------------

void TDoubleParam::setKeyframes(const std::map<int, tdoublekeyframe=""> &ks) {</int,>

  DoubleKeyframeVector &keyframes = m_imp->m_keyframes;

  std::map<int, tdoublekeyframe="">::const_iterator it;</int,>

  for (it = ks.begin(); it != ks.end(); ++it) {

    int index = it->first;

    assert(0 <= index && index < (int)keyframes.size());

    TActualDoubleKeyframe oldKeyframe = keyframes[index];

    TActualDoubleKeyframe &dst        = keyframes[index];

    (TDoubleKeyframe &)dst = it->second;

    dst.updateUnit(m_imp->m_measure);

    if (dst.m_type == TDoubleKeyframe::Expression ||

        dst.m_type == TDoubleKeyframe::SimilarShape)

      dst.m_expression.setText(dst.m_expressionText);

    if (dst.m_type == TDoubleKeyframe::File)

      dst.m_fileData.setParams(dst.m_fileParams);

  }

  if (!keyframes.empty()) {

    keyframes[0].m_prevType = TDoubleKeyframe::None;

    for (int i                = 1; i < (int)keyframes.size(); i++)

      keyframes[i].m_prevType = keyframes[i - 1].m_type;

  }

  m_imp->notify(TParamChange(this, 0, 0, true, false, false));

#ifndef NDEBUG

  for (int i = 0; i + 1 < (int)keyframes.size(); i++) {

    assert(keyframes[i].m_frame <= keyframes[i + 1].m_frame);

  }

#endif

}

//---------------------------------------------------------

void TDoubleParam::setKeyframe(const TDoubleKeyframe &k) {

  DoubleKeyframeVector &keyframes = m_imp->m_keyframes;

  DoubleKeyframeVector::iterator it;

  it = std::lower_bound(keyframes.begin(), keyframes.end(), k);

  if (it != keyframes.end() && it->m_frame == k.m_frame) {

    // int index = std::distance(keyframes.begin(), it);

    TActualDoubleKeyframe &dst = *it;

    (TDoubleKeyframe &)dst     = k;

    dst.updateUnit(m_imp->m_measure);

  } else {

    it = keyframes.insert(it, TActualDoubleKeyframe(k));

    // int index = std::distance(keyframes.begin(), it);

    // TDoubleKeyframe oldKeyframe = *it;

    it->m_expression.setGrammar(m_imp->m_grammar);

    it->m_expression.setOwnerParameter(this);

    it->updateUnit(m_imp->m_measure);

  }

  it->m_isKeyframe = true;

  if (it->m_type == TDoubleKeyframe::Expression)

    it->m_expression.setText(it->m_expressionText);

  if (it->m_type == TDoubleKeyframe::File)

    it->m_fileData.setParams(it->m_fileParams);

  if (it == keyframes.begin())

    it->m_prevType = TDoubleKeyframe::None;

  else

    it->m_prevType = it[-1].m_type;

  if (it + 1 != keyframes.end()) it[1].m_prevType = it->m_type;

  m_imp->notify(TParamChange(this, 0, 0, true, false, false));

  assert(it == keyframes.begin() || (it - 1)->m_frame < it->m_frame);

  assert(it + 1 == keyframes.end() || (it + 1)->m_frame > it->m_frame);

}

//---------------------------------------------------------

void TDoubleParam::setDefaultValue(double value) {

  assert(m_imp);

  if (m_imp->m_defaultValue != value) {

    m_imp->m_defaultValue = value;

    // gmt, 19-6-2010; needed to get a notification in the FxParamsGraphicEditor

    // (Camera Stand)

    // when a param (without keyframes) is changed

    m_imp->notify(TParamChange(this, 0, 0, true, false, false));

  }

}

//---------------------------------------------------------

bool TDoubleParam::isDefault() const {

  return m_imp->m_keyframes.empty() &&

         // m_imp->m_type == Keyframes &&

         m_imp->m_defaultValue == 0;

}

//---------------------------------------------------------

int TDoubleParam::getKeyframeCount() const { return m_imp->m_keyframes.size(); }

//---------------------------------------------------------

void TDoubleParam::getKeyframes(std::set<double> &frames) const {</double>

  for (DoubleKeyframeVector::iterator it = m_imp->m_keyframes.begin();

       it != m_imp->m_keyframes.end(); ++it)

    frames.insert(it->m_frame);

}

//---------------------------------------------------------

bool TDoubleParam::hasKeyframes() const { return !m_imp->m_keyframes.empty(); }