How to set QListWidget size MAX = QMainWindow ?

[Kenneth]

EngineerMainWindow::EngineerMainWindow(QWidget *parent, Qt::WFlags fl)
  : QMainWindow( parent, fl )
{
    //====== set main window size, title
    //======main window already has layout, don't set layout
    setWindowTitle( tr("Engineer Mode") );  
    this->setMaximumSize ( 171, 176 );
 
    QListWidget *mList = new QListWidget( this );
    QListWidgetItem *item = 0;
 
#if 0
    //====== set widget list size
    mList->setMaximumWidth ( 171 );
    mList->setMinimumHeight ( 176 );
    //mList->setMaximumHeight ( 176 );
#endif
#if 0
    //mList->setMaximumSize ( mList->maximumSize() );
    QSize se = mList->maximumSize();
    qWarning()<< "max size = " << se;  // ==== printf : max size =  QSize(171,16777215)
    mList->setMaximumSize ( se );
#endif
 
}

EngineerMainWindow::EngineerMainWindow(QWidget *parent, Qt::WFlags fl)
  : QMainWindow( parent, fl )
{
    //====== set main window size, title
    //======main window already has layout, don't set layout
    setWindowTitle( tr("Engineer Mode") );  
    this->setMaximumSize ( 171, 176 );
    
    QListWidget *mList = new QListWidget( this );
    QListWidgetItem *item = 0;

#if 0
    //====== set widget list size
    mList->setMaximumWidth ( 171 );
    mList->setMinimumHeight ( 176 );
    //mList->setMaximumHeight ( 176 );
#endif
#if 0
    //mList->setMaximumSize ( mList->maximumSize() );
    QSize se = mList->maximumSize();
    qWarning()<< "max size = " << se;  // ==== printf : max size =  QSize(171,16777215)
    mList->setMaximumSize ( se );
#endif

}

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I set my QMainWindow size MaximumSize ( 171, 176 );
Then I added a QListWidget on the MainWindow,
I would like let the QListWidget Size the same as MainWindow,
But I try a lot of API of Qtopia, the ListWidget always display 60% area of the MainWindow.
Wolud you tell me why ?? Thanks !!
PS: if I set QListWidget size (171,176) first, the I get QSize will the same as my setting(171,176) ...@@'', but it displaying on the screen size that is not (171, 176),
it looks like (120, 176), the height is ok, but width is wrong...

[Kumosan]

You could try to use a layout. Add one to your QMainWidget and add your QListWidget. Does not matter that it is your only widget in the layout. Usually works for me.

[jpn]

How about setting the list widget as a central widget of the main window? See QMainWindow::setCentralWidget().

[Kenneth]

COOL~
Thanks~

I use QMainWindow::setCentralWidget ( QWidget * widget ) ,
it seems to be OK.