Problem using QVector through classes.

Ducbr

Hi there!
First of all thanks for this web, I just started developing in QT few weeks ago and it has helped me really much. But now I'm dealing with a really disturbing problem concerning QVector, so I decided signing up and see if anyone could help me. The problem is in the following Code:

@InsertDate.cpp
InsertDate::InsertDate(QTableWidget table, QVector<QDate> vec_dates, QWidget *parent)
:QWidget(parent)
{
this->dates=vec_dates;
this->tabla=table;

BuildWindow();
connect(Guardar,SIGNAL(clicked()),this,SLOT(SaveDate()));
connect(Cancelar,SIGNAL(clicked()),this,SLOT(close()));

}
InsertDate::~InsertDate(){
delete this;
}

void InsertDate:: SaveDate(){
int aux = tabla->rowCount();

bool valido = QDate::isValid(yyyy->value(),mm->value(),dd->value());
if(!valido){
    QMessageBox mes;
    mes.warning(0,QString("Error"),QString("La fecha no es valida"));
}else{
    QDate *dateis = new QDate(yyyy->value(),mm->value(),dd->value());
    tabla->setRowCount(aux+1);
    tabla->setItem(aux,0,new QTableWidgetItem(dateis->toString("dd/MM/yyyy")));
    //tabla->setItem(aux,1,new QTableWidgetItem(mm->text()));
    //vec_dates.insert(vec_dates.size(),dateis);

    this->close();
}

}
@

As you can see i'm trying to modify a Vector of QDates. I've been using QVector to create Spins in other files and worked as expected, but here i can't modify it. The problem then is that when i try to modify dates inserting a QDate it doesn't modify the vec_dates QVector, so I tried using this:

@
connect(Guardar,SIGNAL(clicked()),this,SLOT(SaveDate(QVector<QDate*>)));
...
void InsertDate:: SaveDate(QVector<Qdate*> vec_dates){...}
@

but it crashes.
I've got no idea left of how to do it and I really need to understand why it is not working,

If needed, here are the headers:

@InsertDate.h
class InsertDate : public QWidget
{
Q_OBJECT
public:
explicit InsertDate(QTableWidget table, QVector<QDate> vec_dates, QWidget *parent = 0);
~InsertDate();
void BuildWindow();

public slots:
void SaveDate();

private:
QVector<QDate*> dates;
QTableWidget *tabla;

QHBoxLayout *HBox;
QSpinBox *dd;    QSpinBox *mm;    QSpinBox *yyyy;
QPushButton *Guardar;    QPushButton *Cancelar;

};
@

@
calendar.h
....
public:
QVector<QDate*> holidays;
...

calendar.cpp
void calendar:: AddHoliday()
{
insertWindow = new InsertDate(ui->FesTable,holidays);
insertWindow->show();
}

@

I beg your help. Thanks, and if any code you need to understand it is missing just say and i'll upload it asap.

DerManu

You're never modifying the dates vector, how should the dates appear in it then? Your saveDates function should have something like dates->append(dateis);
//EDIT: Ah yes, and you're creating a copy of a vector to date pointers. But you actually want a pointer to a vector of dates. so QVector<QDate> *dates;
Because it's the date vector you want to modify, not each individual date only.

A few remarks:

Program in english, when it's an english programming language. Don't mix languages by bringing in non-english variable names.
Why not use a QVector<QDate>? I don't see a benefit using pointers to dates here, only more chances to do mistakes.
A method called "saveDate" shouldn't call this->quit();. That's unexpected behaviour and will confuse other programmers and probably the future you. At least call it "saveAndClose", or "acceptDate" or whatever.

Ducbr

Hi thanks! Maybe that's where my problem with the pointers, i'll try it now. And yes, I program in english, the problem is my partner in this project doesn't so she complains me everytime about just using english because doesn't understand it. Thanks for the advice anyway =)

Ducbr

Well now i can say it's defenetly solved.
Thanks mate =)