How add overwriteMode in QTableWidget.

Anton Shelenkov

I need overwriteMode in QTableWidget. This function contains in QPlainTextEdit. How to add this in QTableWidget?

raven-worx

@Anton-Shelenkov
Editor widgets in itemviews are mostly QLineEdit widgets, which do not have such a property.

You can try to create a QPlainTextEdit widget as editor by subclassing QStyledItemDelegate:

QWidget* MyDelegate::createEditor(QWidget * parent, const QStyleOptionViewItem & option, const QModelIndex & index) const
{
      QPlainTextEdit* editor = new QPlainTextEdit( parent );
           editor->setGeometry( option.rect );
           editor->setPlainText( index.data().toString() );
           editor->setOverwriteMode( true );
      return editor;
}

void MyDelegate::setEditorData(QWidget * editor, const QModelIndex & index) const
{
     if( QPlainTextEdit* edit = qobject_cast<QPlainTextEdit*>(editor) )
     {
            edit ->setPlainText( index.data().toString() );
     }
}

void MyDelegate::setModelData(QWidget * editor, QAbstractItemModel * model, const QModelIndex & index) const
{
     if( QPlainTextEdit* edit = qobject_cast<QPlainTextEdit*>(editor) )
     {
            model->setData( index, QVariant::fromValue<QString>(edit->toPlainText()) );
     }
}

(untested)

Anton Shelenkov

@raven-worx Thanks, your solution work, but in qtableWidget adding PlainText Edits and it work incorrectly because it contains some lines,how to correct this problem?

mrjj

@Anton-Shelenkov
Hi
Can you explain a bit more what is wrong with MyDelegate ?
In what way does it work incorrectly and what do you mean with "some lines" ?

To work correctly, what should it do ?

Anton Shelenkov

@mrjj Default qtableWidgetItem have only one row.
In you solution in every QTableWidgetItem added QPlainTextEdit and when i press enter in TableWidgetItem is added new row and is added scrolbar. I want save tableWidgetItem behavior like lineEdit or default item.

raven-worx

@Anton-Shelenkov
try adding setMaximumBlockCount(1) to the created QPlainTextEdit editor