Storing alias name in QCompleter's item?

lansing

I have a QCompleter with the tree model for a QPlainTextEdit. I have set it up so that on typing, a popup with the list will appear at the spot. When I'm done selecting, my selection will be pasted in the textEdit. The problem is that in my list, I have some very long strings, that makes the pop up width to stretch over my entire screen. How do I store the strings in shorter version in the popup but then give the original version when it was pasted?

// adding items
for (const auto & module : myList) {
    QStandardItem * pModuleItem = new QStandardItem(module.name);
    pRootItem->appendRow(pModuleItem);

    for(const auto & function : module.functions)
    {
        QStandardItem * pFunctionItem = new QStandardItem(function.name); // some of the names are too long
        pModuleItem->appendRow(pFunctionItem);
    }
}

When I select like module1 -> Func1(abcdefghijklmnopq), I want it to look like module1 -> Func1 in the popup, and then have it output Func1(abcdefghijklmnopq) to the textedit.

mrjj

Hi
We could store extra string via another role ( a custom role)
https://doc.qt.io/qt-5/qstandarditem.html#setData

and then use
https://doc.qt.io/qt-5/qcompleter.html#activated-1
to get the index, then grab the other ROLE's text and then insert that into the QPlainTextEdit.

lansing

@mrjj said in Storing alias name in QCompleter's item?:

get the index, t

Thanks I got it working

QStandardItem * pFunctionItem = new QStandardItem();
pFunctionItem->setData(function.fullName, 1);
pFunctionItem->setData(function.name, 2); // shorter version
pModuleItem->appendRow(pFunctionItem);

/// in the signal
connect(completer, QOverload<const QModelIndex &>::of(&QCompleter::activated),
    [=](const QModelIndex &index){  
        qDebug () << index.data(1); // print out the longer version
    });

mrjj

@lansing

Oh wait

pFunctionItem->setData(function.fullName, 1);
pFunctionItem->setData(function.name, 2); // shorter version

should be maybe be

pFunctionItem->setData(function.fullName, Qt::UserRole );
pFunctionItem->setData(function.name,Qt::DisplayRole);

to follow
enum ItemDataRole { DisplayRole, DecorationRole, EditRole, ToolTipRole, StatusTipRole, …, UserRole }.

and be easier to read for others :)

lansing

@mrjj said in Storing alias name in QCompleter's item?:

Qt::DisplayRole

Thanks