describable.cpp
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	#include "specs/describable.h"
	#include "descriptor.h"

	#include <QString>

	#include "skerror.h"

	using namespace symkit;

	Describable::Describable(Descriptor *desc)

	: descriptor(desc)
	{

	}

	Describable::~Describable()
	{
	release();
	}

	void Describable::bind(Descriptor * desc)
	{
	if (!desc)
	throw SKError(ERR_NULL_POINTER,
	"bindDescriptor",
	"symgraph.Descriptable",
	"Cannot bind a null pointer as descriptor");

	descriptor = desc;
	}

	void Describable::release()
	{
	descriptor = 0;
	}

	bool Describable::isBound() const
	{
	return descriptor != 0;
	}

	Descriptor * Describable::getDescriptor()
	{
	return descriptor;
	}

	void Describable::updateDescriptor(float dt)
	{
	descriptor->update(dt);
	}