suggestions for repeating display views

[mzimmers]

@VRonin thanks for the link. I looked at one of the mapper examples (simplewidgetmapper), and I think this is the way to go for me.

In fact, I'm thinking about changing the entire UI. Instead of separate summary/detail areas, I could provide the user with two lists: one for the MAC address, and one for the device name. When the user makes a selection, all the details area (contained in a grid like the simplewidgetmapper example) would update. The user could then edit the details and press a "commit" button.

How does this sound so far?

EDIT:

So, I've begun an in-place conversion from QTableView to using individual widgets (and QDataWidgetMapper). (I've only implemented 2 fields so far.) I think I must be missing a step, because the fields don't initialize on startup the way they did with the table view.

    mapper = new QDataWidgetMapper(this);
    mapper->setModel(d->getModel());
    mapper->addMapping(ui->comboBoxMacAddr, 0);
    mapper->addMapping(ui->deviceName, 1);

    ui->gridLayout->addWidget(ui->labelMacAddr, 0, 0, 1, 1);
    ui->gridLayout->addWidget(ui->comboBoxMacAddr, 0, 1, 1, 1);
    ui->gridLayout->addWidget(ui->labelDevName, 1, 0, 1, 1);
    ui->gridLayout->addWidget(ui->deviceName, 1, 1, 1, 1);

Have I indeed left out a step? It may be noteworthy that, once I select a row in my table (I still have the table active), the update properly affects these fields.

Thanks...

[VRonin]

@mzimmers said in suggestions for repeating display views:

the fields don't initialize on startup

What would the expected behaviour be?

[mzimmers]

I was expecting that the widgets that I mapped to the model would be automatically updated with the model data. (This is how the view table worked.) Could the problem be that I have multiple views setting on the same model? (I still have my view table active.)

If it looks like I misunderstood the correct use of the mapper, please let me know and I'll make whatever changes necessary.

[VRonin]

You just missed the connection.

@VRonin said in suggestions for repeating display views:

like explained here: http://doc.qt.io/qt-5/qdatawidgetmapper.html#setCurrentModelIndex

connect(view->selectionModel(),&QItemSelectionModel::currentRowChanged,mapper,&QDataWidgetMapper::setCurrentModelIndex);

[mzimmers]

I actually have that connection, and it handles updating the fields once a row is changed. What's missing is the initial setting of the fields before the user selects a row.

In production, this app is going to be collecting data from remote devices all the time. When it gets the first message (no matter from which device), I'd like to populate the MAC address and device name fields with the information from that message, as it does the view table.

[VRonin]

You can call view->selectionModel()->setCurrentIndex(view->model()->index(0,0)); when you insert the first row to populate the linked widgets

[mzimmers]

@VRonin: this solution seems to require the table view. I was hoping to eliminate the table view once I got my individually mapped widgets working. Am I barking up the wrong tree here?

[VRonin]

How would you select which device to show details for?

[mzimmers]

Hi VRonin - I was thinking to use a combo box for the MAC address.

I'm getting the impression that this isn't a great idea, though, so perhaps I'll keep the table after all. The summary area (above the fold) will be read-only, and the details area will permit editing (and a commit).

[VRonin]

@mzimmers said in suggestions for repeating display views:

I was thinking to use a combo box for the MAC address.

Then it's just a small change to the connect statement:
connect(combo,QOverload<int>::of(&QComboBox::currentIndexChanged),mapper,&QDataWidgetMapper::setCurrentIndex);