src/model.h

#pragma once
#include <memory>
#include "main.h"
#include "header.h"
#include "objecttypes/modelobject.h"

class Model : public QObject
{
	Q_OBJECT
public:
	class EditContext;
	Model();
	Model(const Model &) = delete;
	int size() const;
	EditContext edit();
private:
	template<typename T, typename... Args>
	T* append(Args&&... args);
	template<typename T, typename... Args>
	T* insert(int position, Args&&... args);
	bool modified = false;
	QString path;
	using ModelObjectPointer = std::unique_ptr<modelobjects::BaseObject>;
	LDHeader header;
	std::vector<ModelObjectPointer> body;
};

template<typename T, typename... Args>
T* Model::append(Args&&... args)
{
	this->body.push_back(std::make_unique<T>(args...));
	return static_cast<T*>(this->body.back().get());
}

template<typename T, typename... Args>
T* Model::insert(int position, Args&&... args)
{
	this->body.insert(position, std::make_unique<T>(args...));
	return this->body[position];
}