Is there an easy way to show boolean fields as checkboxes?

[zeroptr]

Hi all,

I have tableview showing some data form a table.. Table has boolean fields.. I don't want them to show as true or false, I want to show them as checkboxes...

is there an easy way or tecnique to show booean fields as checkboxes at tableview?

Thanks..

[mrjj]

@zeroptr said:

Hi you can maybe use the checkable property

https://forum.qt.io/topic/25740/checkbox-in-qtableview/3

[zeroptr]

Hi mrjj,

I could not find a way to implement your sample to QSQLTableModel... It did not work...

I searched all samples given by QT.. but nothing on this. I found the sample spinbox delegate I transform QSpinBox to QCheckBox When I edit the Cell I get a checkbox but "true" "false" terms remains on the cell..

Any help is soooo valuable.. thanks...

[mrjj]

@zeroptr said:
ok.
the more full blown way is to use a delegate
Maybe this works better for you
http://stackoverflow.com/questions/21498857/how-do-i-get-my-qtableview-with-qsqltablemodel-to-have-checkboxes-and-multiline

note the
ui->myTable->setItemDelegateForColumn(xxx)
as it sets the delegate and you must also do that on your tableview

[zeroptr]

Hi mrjj,

The code at stackoverflow is seems to work at first sight but it's buggy.. it cannot update data in the row.. I try to figure out why for 3 hours...

Regards..

[zeroptr]

Hi All bug free version of the code is like this..

class definition

class CheckBoxDelegate: public QItemDelegate
{
    Q_OBJECT
public:
    CheckBoxDelegate(QObject *parent = 0);

    void paint( QPainter *painter,
                        const QStyleOptionViewItem &option,
                        const QModelIndex &index ) const;


    QWidget *createEditor( QWidget *parent,
                        const QStyleOptionViewItem &option,
                        const QModelIndex &index ) const;

    void setEditorData( QWidget *editor,
                        const QModelIndex &index ) const;

    void setModelData( QWidget *editor,
                        QAbstractItemModel *model,
                        const QModelIndex &index ) const;

    void updateEditorGeometry( QWidget *editor,
                        const QStyleOptionViewItem &option,
                        const QModelIndex &index ) const;

    mutable QCheckBox * theCheckBox;

private slots:

    void setData(bool val);


};

Class

CheckBoxDelegate::CheckBoxDelegate(QObject *parent ):QItemDelegate(parent)
{
}

void CheckBoxDelegate::paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const
{
    //drawCheck(painter,option,option.rect,index.model()->data(index,Qt::DisplayRole).toBool()?Qt::Checked:Qt::Unchecked);
    drawDisplay(painter,option,option.rect,index.model()->data( index, Qt::DisplayRole ).toBool()?QString("      ").append(tr("Var")):QString("      ").append(tr("Yok")));
    drawFocus(painter,option,option.rect);
}

QWidget *CheckBoxDelegate::createEditor(QWidget *parent, const QStyleOptionViewItem &option, const QModelIndex &index) const
{
    theCheckBox = new QCheckBox( parent );
    QObject::connect(theCheckBox,SIGNAL(toggled(bool)),this,SLOT(setData(bool)));
    return theCheckBox;
}

void CheckBoxDelegate::setEditorData(QWidget *editor, const QModelIndex &index) const
{
    bool val = index.model()->data( index, Qt::DisplayRole ).toBool();

    (static_cast<QCheckBox*>( editor ))->setChecked(val);

}

void CheckBoxDelegate::setModelData(QWidget *editor, QAbstractItemModel *model, const QModelIndex &index) const
{
    model->setData( index, (bool)(static_cast<QCheckBox*>( editor )->isChecked() ) );
}


void CheckBoxDelegate::updateEditorGeometry(QWidget *editor, const QStyleOptionViewItem &option, const QModelIndex &index) const
{
    editor->setGeometry( option.rect );
}

void CheckBoxDelegate::setData(bool val)
{
    emit commitData(theCheckBox);
}

and don't forget

ui->myTable->setItemDelegateForColumn(xxx)

Have a nice day...