Russian Qt Forum

class CExample1 {
...
  QWidget * theCenter;
};

class CExample2 {
...
  QWidget theCenter;
};

///client.h
сlass Client : public QDialog
 {
     Q_OBJECT

 public:
     Client(QWidget *parent = 0);
...
 private:
     QPushButton *quitButton;
     QDialogButtonBox *buttonBox;
...

 };

///!!!client.cpp
Client::Client(QWidget *parent)
     : QDialog(parent)
 {   

     quitButton = new QPushButton(tr("Quit"));

     buttonBox = new QDialogButtonBox;
     buttonBox->addButton(quitButton, QDialogButtonBox::RejectRole);
    
     connect(quitButton, SIGNAL(clicked()), this, SLOT(close()));
....
     QGridLayout *mainLayout = new QGridLayout;
     mainLayout->addWidget(buttonBox, ....);
     setLayout(mainLayout);
....
 }

///client.h
[code]lass Client : public QDialog
 {
     Q_OBJECT

 public:
     Client(QWidget *parent = 0);
...

 };

///!!!client.cpp
Client::Client(QWidget *parent)
     : QDialog(parent)
 {   

     quitButton = new QPushButton(tr("Quit"));

     QPushButton *buttonBox = new QDialogButtonBox;
     ButtonBox *buttonBox->addButton(quitButton, QDialogButtonBox::RejectRole);
    
     connect(quitButton, SIGNAL(clicked()), this, SLOT(close()));
....
     QGridLayout *mainLayout = new QGridLayout;
     mainLayout->addWidget(buttonBox, ....);
     setLayout(mainLayout);
....
 }

int main(int argc, char *argv[])
{
Application app(argc, argv);
Qlabel *label = new QLabel ("Hellow Qt!");
label->show();
return app.exec();

quitButton = new QPushButton(tr("Quit"));

Test::Test(QWidget *parent)
	: QDialog(parent)
{
	m_label.setParent(this);
	m_label.setText("hello");
}

#include <QtGui>
#include <qDebug>

class MyLabel : public QLabel {
public:
	MyLabel( QWidget * parent = 0 ) : QLabel(parent) {}

    virtual ~MyLabel( void )  
	{ 
		qDebug() << "destruct MyLabel"; 
	}	
};

class MyFrame : public QFrame {
public:
	MyFrame( QWidget * parent = 0 ) : QFrame(parent) {}

    virtual ~MyFrame( void )  
	{ 
		qDebug() << "destruct MyFrame"; 
	}	
};

class MyDialog : public QDialog {
public:
	MyDialog( QWidget * parent = 0 ) : QDialog(parent)
	{
		mFrame.setParent(this);
		mLabel.setParent(&mFrame);
	}

// data	
	MyLabel mLabel;
	MyFrame mFrame;
};

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);

	MyDialog dlg;
	return 0;
}