Qt creating a class and using in a vector - c++

Question

I'm new in Qt and C++. I want to implement a vector with using a class called Item. I think I'm doing a beginners mistake. I'm getting the below error. Can someone please help?
C:\Qt\Qt5.6.1\5.6\msvc2015_64\include\QtCore\qvector.h:631: error: C2280: 'Item::Item(const Item &)': attempting to reference a deleted function
Below is my mainwindow.cpp:
#include "mainwindow.h"
#include "ui_mainwindow.h"
#include <QVector>
#include <QtCore>
#include <QtGui>
#include <QMessageBox>
MainWindow::MainWindow(QWidget *parent) :
QMainWindow(parent),
ui(new Ui::MainWindow)
{
ui->setupUi(this);
}
void MainWindow::AddRoot(QString item)
{
QTreeWidgetItem *itm = new QTreeWidgetItem(ui->treeWidget);
itm->setText(0,item);
ui->treeWidget->addTopLevelItem(itm);
}
void MainWindow::AddChild(QTreeWidgetItem *parent,QString item)
{
}
MainWindow::~MainWindow()
{
delete ui;
}
void MainWindow::on_pushButton_clicked()
{
Item item;
item.setDescription(ui->lineEdit->text());
data.push_back(item);
ui->treeWidget->setColumnCount(1);
AddRoot(item.getDescription());
}
And my item.cpp class
#include "item.h"
#include <QtCore>
#include <QtGui>
Item::Item()
{
}
void Item::setDescription(QString desc)
{
Description = desc;
}
void Item::setEnterDate(QDateTime enterDate)
{
EnterDate = enterDate;
}
void Item::setEndDate(QDateTime endDate)
{
EndDate = endDate;
}
QString Item::getDescription()
{
return Description;
}
QDateTime Item::getEnterDate()
{
return EnterDate;
}
QDateTime Item::getEndDate()
{
return EndDate;
}
#ifndef MAINWINDOW_H
#define MAINWINDOW_H
#include <QMainWindow>
#include <item.h>
#include <QtGui>
#include <QtCore>
#include <QTreeWidget>
mainwindow.h:
namespace Ui {
class MainWindow;
}
class MainWindow : public QMainWindow
{
Q_OBJECT
public:
explicit MainWindow(QWidget *parent = 0);
~MainWindow();
QVector<Item> data;
void AddRoot(QString item);
void AddChild(QTreeWidgetItem *parent,QString item);
private slots:
void on_pushButton_clicked();
private:
Ui::MainWindow *ui;
};
#endif // MAINWINDOW_H
item.h:
#ifndef ITEM_H
#define ITEM_H
#include <QtCore>
#include <QtGui>
class Item : public QObject
{
Q_OBJECT
public:
explicit Item(QObject *parent = 0);
QString Description;
QDateTime EnterDate;
QDateTime EndDate;
QString getDescription();
QDateTime getEnterDate();
QDateTime getEndDate();
void setDescription(QString desc);
void setEnterDate(QDateTime enterDate);
void setEndDate(QDateTime endDate);
};
#endif // ITEM_H

Answer 1

Item is a QObject. QObjects are know for not having a copy constructor. In order to use the QVector, the item needs to have a copy constructor. Either change Item to not being a QObject, or use QSharedPointer (but only if you understand ownership).