#ifndef MULTIPLESELECTION_H
#define MULTIPLESELECTION_H

// TnzQt includes
#include "toonzqt/selection.h"

// STD includes
#include <algorithm>

//**********************************************************************
//    MultipleSelection  definition
//**********************************************************************

/*!
  \brief      Represents a selection of multiple objects.

  \details    This template class implements a TSelection storing
              multiple objects.

  \remark     The stored objects must support operator<().
*/

template <typename T>
class MultipleSelection : public TSelection
{
public:
	typedef T object_type;
	typedef std::vector<T> objects_container;

public:
	MultipleSelection() {}
	MultipleSelection(const T &t) : m_objects(1, t) {}
	MultipleSelection(const std::vector<T> &objects)
		: m_objects(objects)
	{
		std::sort(m_objects.begin(), m_objects.end());
	}

	bool isEmpty() const { return m_objects.empty(); }
	void selectNone()
	{
		m_objects.clear();
		notifyView();
	}

	bool contains(int v) const
	{
		return std::binary_search(m_objects.begin(), m_objects.end(), v);
	}

	bool contains(const MultipleSelection &other) const
	{
		return std::includes(m_objects.begin(), m_objects.end(),
							 other.m_objects.begin(), other.m_objects.end());
	}

	const objects_container &objects() const { return m_objects; }
	void setObjects(const objects_container &objects)
	{
		m_objects = objects;
		std::sort(m_objects.begin(), m_objects.end());
	}

	bool hasSingleObject() const
	{
		return (m_objects.size() == 1);
	}

protected:
	objects_container m_objects; //!< Selected objects
};

#endif // MULTIPLESELECTION_H