Adding a label to the top/curent dialog

tony67

Hi All
I want to add a label to a current dialog on top of a frame. What I do to draw the label is the following

    game_layout.board.at( 0 ).level_data.at( 0 ).lable->move( 100, 100 );
    game_layout.board.at( 0 ).level_data.at( 0 ).lable->show( );

however this opens a new widget for the label. How can I force it to draw the lable to the current dialog and the frame , eg ui->frame.
I've tried


    ui->frame->game_layout.board.at( 0 ).level_data.at( 0 ).lable->move( 100, 100 );
    ui->frame->game_layout.board.at( 0 ).level_data.at( 0 ).lable->show( );

but this as you'd expect gives an error. So I do I associate the label with the current dialog and the frame?

Thanks

tony67

should add I've seen addwidget eg ui->frame->addWidget however this function doesn't seem to exist? If I use ui->frame I'm only offered addaction(s)

the_

@tony67

If your frame has a layout, you can add the widget to the layout.

QLabel *myLabel = new QLabel(this);
ui->frame->layout()->addWidget(myLabel);

tony67

@the_ said:

QLabel *myLabel = new QLabel(this);
ui->frame->layout()->addWidget(myLabel);

Hi tried this and it just causes a seg fault?

kshegunov

@tony67 said:

Hi tried this and it just causes a seg fault?

Then your frame doesn't have a layout. Then ui->frame->layout() returns NULL, and voila you get a null dereferencing thus a segfault. Add a layout to your frame, and then add the widget(s) to it. This also have the nice side effect of you not calling, move and show and any such things.

tony67

got it to work in a different way

    QGridLayout *layout = new QGridLayout();
    ui->frame->setLayout( layout );


layout->addWidget(  game_layout.board.at( level ).level_data.at( element ).lable ,level ,element );