Reputation: 45
it should be really easy, but something just doesn't work and i can't find the problem.
I have two classes, like below:
1) individualtab
#ifndef INDIVIDUALTAB_H
#define INDIVIDUALTAB_H
#include <QMainWindow>
#include <QInputDialog>
#include <QTableWidget>
#include <QVBoxLayout>
#include <QLabel>
class IndividualTab : public QWidget
{
Q_OBJECT
public:
IndividualTab(QWidget *parent = 0);
QTableWidget *table;
QVBoxLayout *layout;
};
#endif // INDIVIDUALTAB_H
IndividualTab::IndividualTab(QWidget *parent) : QWidget()
{
table = new QTableWidget(0,4);
layout = new QVBoxLayout();
}
2) secondclass
#ifndef SECONDCLASS_H
#define SECONDCLASS_H
#include "individualtab.h"
class secondClass : public QMainWindow
{
Q_OBJECT
public:
explicit secondClass(QWidget *parent = 0);
Ui::secondClass *ui;
~secondClass();
QList<IndividualTab> *individualTabList;
};
#endif // SECONDCLASS_H
secondClass::secondClass(QWidget *parent) : QMainWindow(parent), ui(new Ui::secondClass)
{
ui->setupUi(this);
}
secondClass::~secondClass()
{
delete ui;
}
void secondClass::addNewItem()
{
//Getting parameters
QList<QString> parameters;
//creating QList
//Updating individualTab
for(int i = 0; i < ui->tabWidget->count(); i++)
{
if(parameters.at(0) == ui->tabWidget->tabText(i))
{
IndividualTab tab = individualTabList->at(i);
tab.addItem(parameters);
break;
}
}
}
When i compile i have this error:
In file included from ../secondclass.h:5:0,
from ../secondclass.cpp:1:
/usr/include/qt4/QtGui/qwidget.h: In copy constructor 'IndividualTab::IndividualTab(const IndividualTab&)':
/usr/include/qt4/QtGui/qwidget.h:806:5: error: 'QWidget::QWidget(const QWidget&)' is private
../individualtab.h:10:7: error: within this context
../secondclass.cpp: In member function 'void SecondClass::addNewItem()':
../secondclass.cpp:142:56: note: synthesized method 'IndividualTab::IndividualTab(const IndividualTab&)' first required here
I tought that the problem was in IndividualTab tab = individualTabList->at(i);
So i changed in
IndividualTab *tab = new IndividualTab();
tab = individualTabList->at(i);
but in this case, i had this error:
../secondclass.cpp: In member function 'void SecondClass::addNewItem()':
../secondclass.cpp:143:42: error: cannot convert 'const IndividualTab' to 'IndividualTab*' in assignment
../secondclass.cpp:144:17: error: request for member 'addItem' in 'tab', which is of non-class type 'IndividualTab*'
In file included from ../secondclass.h:5:0,
from ../secondclass.cpp:1:
/usr/include/qt4/QtGui/qwidget.h: In copy constructor 'IndividualTab::IndividualTab(const IndividualTab&)':
../individualtab.h:10:7: instantiated from 'void QList<T>::node_construct(QList<T>::Node*, const T&) [with T = IndividualTab]'
/usr/include/qt4/QtCore/qlist.h:512:13: instantiated from 'void QList<T>::append(const T&) [with T = IndividualTab]'
../Ripetizioni/secondclass.cpp:112:38: instantiated from here
/usr/include/qt4/QtGui/qwidget.h:806:5: error: 'QWidget::QWidget(const QWidget&)' is private
../individualtab.h:10:7: error: within this context
In file included from /usr/include/qt4/QtCore/qobject.h:50:0,
from /usr/include/qt4/QtGui/qwidget.h:46,
from /usr/include/qt4/QtGui/qmainwindow.h:45,
from /usr/include/qt4/QtGui/QMainWindow:1,
from ../secondclass.h:4,
from ../secondclass.cpp:1:
/usr/include/qt4/QtCore/qlist.h: In member function 'void QList<T>::node_construct(QList<T>::Node*, const T&) [with T = IndividualTab]':
/usr/include/qt4/QtCore/qlist.h:372:58: note: synthesized method 'IndividualTab::IndividualTab(const IndividualTab&)' first required here
thanks in advance!
Upvotes: 0
Views: 769
Reputation: 206859
QWidget
s aren't meant to be copied. Your individualTabList
should be a container of pointers-to-IndividualTab
. And there's no good reason for that member itself to be a pointer. Change the declaration to:
QList<IndividualTab*> individualTabList;
Then you can:
IndividualTab *tab = individualTabList.at(i);
Upvotes: 3