QTableView, adding headers and content

[SPlatten]

@mrjj , I'm using Qt 5.9.2 and so far I've added:

mptwRecs = new QTableWidget(this);
mpsiModel = new QStandardItemModel(this);
mptwRecs->setModel(mpsiModel);

This will not compile and I get the error message:

C2248: `QTableWidget::setModel` cannot access private member declared in class `QTableWidget`

Fixed, looks like I have to use QTableView.

[mrjj]

@SPlatten
Hi
yes the TableWIDGET comes with its onw internal model and it wont use external one.
So yes., Use TreeView.

[SPlatten]

@mrjj , did you mean TreeView or are you just trying to confuse me...more ? :)

[mrjj]

@SPlatten

Sorry :)
I meant TableView. (no trees)

[SPlatten]

@mrjj , next related question, when I add the rows I use:

lstRow.append(new QStandardItem(strValue));

Later once the list is ready to add:

mpsiModel->appendRow(lstRow);

The question is how do I get access to the row list when I want to delete each instance of QStandardItem?

[mrjj]

@SPlatten
Hi
Well the models own the items so you dont need to clean up. It will do.
If you want to empty it, you can call clear() on it.

[SPlatten]

@mrjj , thank you.

[SPlatten]

@mrjj , A few more tweets, each row has a lot of space and padding top and bottom of each row, including headers, I would like to remove this and also I would like to disable editing of the cells.

I want to make it so when I double click a row it selects that row and then signals my application of this.

[mrjj]

@SPlatten

hi
selecting row:
table->setSelectionBehavior(QAbstractItemView::SelectRows);

for nonediting, you can set that on the item

item->setFlags(item->flags() & ~Qt::ItemIsEditable) // we remove the edit flag. there are others flags so we only clear that one out as not to fux up stuff

for the spaces:

QHeaderView* header=tableView->verticalHeader();
header->setDefaultSectionSize(20); // 20 px height for all

[SPlatten]

@mrjj ,the headers I want to resize are the horizontal headers, I tried:

QHeaderView* phvHorizontal(mptvRecs->horizontalHeader());
phvHoriztonal->setDefaultSectionSize(14);

However that effects the header width and not the height.

[mrjj]

@SPlatten
Hi
The verticalheader() gives access to the "height"

[SPlatten]

@mrjj, checking this out now...also I'm using a lambda connection to connect to:

QObject::connect(mptvRecs, &QTableView::doubleClicked, [this, objJSONdataTypes]() {
    ...
});

This works, but is there anyway to get access to the parameter associated with the doubleClicked signal from lambda ?

[Edit]...trying

QObject::connect(mptvRecs, &QTableView::doubleClicked, [this, objJSONdataTypes](const QModelIndex& crIndex) {
    ...
});

[Edit2], yes that works!

[SPlatten]

@mrjj , Is there a way to remove the padding which seems to be present above and below the text regardless of the height setting ?

If I use setFixedHeight there are still several pixels above the text.

[Edit] Yes, by using setStyleSheet on header.