#include "tdoubleparamrelayproperty.h"

//*****************************************************************************
//    TDoubleParamRelayProperty  implementation
//*****************************************************************************

TDoubleParamRelayProperty::TDoubleParamRelayProperty(const std::string &name, TDoubleParamP param)
	: TProperty(name), m_frame()
{
	if (param)
		setParam(param);
}

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

TDoubleParamRelayProperty::~TDoubleParamRelayProperty()
{
	if (m_param)
		m_param->removeObserver(this);
}

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

TDoubleParamRelayProperty::TDoubleParamRelayProperty(const TDoubleParamRelayProperty &other)
	: TProperty(other), m_param(other.m_param), m_frame(other.m_frame)
{
	if (m_param)
		m_param->addObserver(this);
}

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

TDoubleParamRelayProperty &TDoubleParamRelayProperty::operator=(const TDoubleParamRelayProperty &other)
{
	TProperty::operator=(other);

	if (m_param)
		m_param->removeObserver(this);

	m_param = other.m_param;
	m_frame = other.m_frame;

	if (m_param)
		m_param->addObserver(this);

	return *this;
}

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

TProperty *TDoubleParamRelayProperty::clone() const
{
	return new TDoubleParamRelayProperty(*this);
}

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

std::string TDoubleParamRelayProperty::getValueAsString()
{
	return m_param ? toString(m_param->getValue(m_frame)) : "";
}

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

void TDoubleParamRelayProperty::setParam(const TDoubleParamP &param)
{
	if (m_param == param)
		return;

	if (m_param)
		m_param->removeObserver(this);

	m_param = param;

	if (param)
		param->addObserver(this);
}

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

void TDoubleParamRelayProperty::setValue(double v)
{
	if (m_param)
		m_param->setValue(m_frame, v);
}

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

double TDoubleParamRelayProperty::getValue() const
{
	return m_param ? m_param->getValue(m_frame) : 0.0;
}

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

void TDoubleParamRelayProperty::accept(TProperty::Visitor &v)
{
	if (TDoubleParamRelayProperty::Visitor *vv = dynamic_cast<TDoubleParamRelayProperty::Visitor *>(&v))
		vv->visit(this);
}

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

void TDoubleParamRelayProperty::onChange(const TParamChange &)
{
	notifyListeners();
}