List of editable labels on dockwidget

danga96

hello to the whole community Qt Forum,
I would like to create a Label list, or something equivalent, in a dockwidget in a window; This list must be dynamic, in practice it represents a list of connected users, and I need a way to represent it.
I hope I was clear
Thanks in advance :)

SGaist

Hi,

Do you mean something like a QListWidget ? Or QListView with a QStandardItemModel storing your connected users information ?

danga96

@SGaist
Thank you for your reply; could you tell me how I can use the QstandardItemModel library with the QListView in a dockWidget?

SGaist

QDockWidget is just a container widget, that's currently not your main concern.

Did you already read the Model/View Programming chapter in Qt's documentation ?

danga96

@SGaist
I wrote these lines, I would like to know how I can go from this to a direct access visualization model.

	QWidget* multiWidget = new QWidget();
	QScrollArea* area = new QScrollArea();
	area->setWidget(multiWidget);
	QVBoxLayout* layout = new QVBoxLayout();
	multiWidget->setLayout(layout);
	area->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOn);
	area->setWidgetResizable(true);
	QVector<QLabel*> ql;
	for (int i = 0; i < 50; i++) ql.push_back(new QLabel("Label "+i));
	for (int i = 0; i < 50; i++) {
		layout->addWidget(ql[i]);
	}
	qw->setWidget(area);//qw is the dockwidget

mrjj

Hi

    int nrow = 4;
    int ncol = 1;

    // create QListView 
    auto listView = new QListView(this);
   // create the model
    QStandardItemModel *model = new QStandardItemModel( nrow, ncol, this );

    //fill the model 
    for ( int r = 0; r < nrow; r++ ) {
        QString sstr = "( " + QString::number(r) + " )";
        QStandardItem *item = new QStandardItem(sstr);
        model->setItem(r, 0, item);
    }

    //set model to the view
    listView->setModel(model);

Then assign listView to a layout that you have put on qw.
ListView can do its own scrolling so no need for ScrollArea.

danga96

@mrjj
Thank you for your reply; I tried its code, and it does just what I wanted, now I'd like to know how to do this with labels, because the QstandarItem constructor doesn't accept Qlabel as a parameter.

SGaist

Why do you want to use labels ? QListView already provides the necessary plumbing to edit the content of the model.

danga96

Yes indeed, you're right, with QListView I managed to get the same thing;
Thank you all;