Widgets in QGridLayout placed at top left

[anarion]

Hi, It's my first time trying Qt and followed the tutorials on widgets first, then the address book tutorial. My problem is with arranging widgets in a QGridLayout, I use proper row/column numbers but when I run the program, all of them are palced at top left.

/Here's the code\
adressbook.hpp:

#include <QWidget>
#include <QLineEdit>
#include <QTextEdit>
 
class address_book: public QWidget {
	Q_OBJECT
	QLineEdit name;
	QTextEdit address;
 
public:
	address_book(QWidget *parent=0);
};

#include <QWidget>
#include <QLineEdit>
#include <QTextEdit>

class address_book: public QWidget {
	Q_OBJECT
	QLineEdit name;
	QTextEdit address;

public:
	address_book(QWidget *parent=0);
};

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addressbook.cpp:

#include "addressbook.hpp"
#include <QLabel>
#include <QGridLayout>
 
address_book::address_book(QWidget *parent): QWidget(parent), name(), address() {
	QLabel lname(tr("Name:"));
	QLabel laddress(tr("Address:"));
 
	QGridLayout layout(this);
	layout.setSpacing(10);
 
	layout.addWidget(&lname, 0, 0);
	layout.addWidget(&name, 0, 1);
 
	layout.addWidget(&laddress, 1, 0);
	layout.addWidget(&address, 1, 1);
 
	setWindowTitle(tr("Address Book"));
}

#include "addressbook.hpp"
#include <QLabel>
#include <QGridLayout>

address_book::address_book(QWidget *parent): QWidget(parent), name(), address() {
	QLabel lname(tr("Name:"));
	QLabel laddress(tr("Address:"));

	QGridLayout layout(this);
	layout.setSpacing(10);

	layout.addWidget(&lname, 0, 0);
	layout.addWidget(&name, 0, 1);

	layout.addWidget(&laddress, 1, 0);
	layout.addWidget(&address, 1, 1);

	setWindowTitle(tr("Address Book"));
}

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Here's the screenshot:
app.jpg

What might be causing this behaviour?

[Lykurg]

Create your layout on the heap, not on the stack! Right now it will be deleted after the constructor, so that in the end the widgets are not layouted (since their layout is getting deleted...)

[anarion]

damn... wasn't looking at it from that aspect
Thanks! it works.