[solved] openPersistentEditor(index) not working

Hareen Laks

Dear friends,

Can you help me please?

I'm trying to apply QSpinbox delegate to my application.

I tried to imitate Spin Box Delegate Example in Qt creator and "QItemDelegate tutorial video":http://www.youtube.com/watch?v=EJf-vZ6FQfc.

I successfully created the delegates. But openPersistentEditor() method not working. Which use to display the data already in edit mode.

What is missing?

Here my codes.

@ QStandardItemModel *item_model;
ComponentDelegate *component_delegate;

    item_model = new QStandardItemModel(4,2,this);
    component_delegate = new ComponentDelegate(this);

    for (int row = 0; row < 4; ++row) {
        for (int col = 0; col < 2; ++col) {
            QModelIndex index = item_model->index(row,col,QModelIndex());
            ui->height_amperate_tableview->openPersistentEditor(index);
            item_model->setData(index,0);
        }
    }

    ui->height_amperate_tableview->horizontalHeader()->setStretchLastSection(true);
    ui->height_amperate_tableview->setModel(item_model);
    ui->height_amperate_tableview->setItemDelegate(component_delegate);@

@class ComponentDelegate:public QItemDelegate
{
public:
ComponentDelegate(QObject *parent): QItemDelegate(parent){}

QWidget *createEditor(QWidget *parent, const QStyleOptionViewItem &option, const QModelIndex &index) const
{
    QSpinBox *editor=new QSpinBox(parent);
    editor->setMinimum(0);
    editor->setMaximum(100);
    return editor;
}

void setEditorData(QWidget *editor, const QModelIndex &index) const
{
    int value = index.model()->data(index,Qt::EditRole).toInt();

    QSpinBox *spinbox = static_cast<QSpinBox*>(editor);
    spinbox->setValue(value);
}

void setModelData(QWidget *editor, QAbstractItemModel *model, const QModelIndex &index) const
{
    QSpinBox *spinbox = static_cast<QSpinBox*>(editor);
    spinbox->interpretText();
    int value = spinbox->value();
    model->setData(index,value,Qt::EditRole);
}

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

};@

Thanks in advance.

SGaist

Hi,

One thing from your code that look strange is that you are opening the persistent editor before setting your delegate.

Hareen Laks

Thank you for replying me.

As you mentioned I set the delegate before opening the persistent editor.

@
QStandardItemModel *item_model;
ComponentDelegate *component_delegate;

item_model = new QStandardItemModel(4,2,this);
component_delegate = new ComponentDelegate(this);

ui->height_amperate_tableview->horizontalHeader()->setStretchLastSection(true);

ui->height_amperate_tableview->setModel(item_model);

ui->height_amperate_tableview->setItemDelegate(component_delegate);

for (int row = 0; row < 4; ++row) {
for (int col = 0; col < 2; ++col) {
QModelIndex index = item_model->index(row,col,QModelIndex());
ui->height_amperate_tableview->openPersistentEditor(index);
item_model->setData(index,0);
}
}

@

It is working Now.

Thank you very much for your help.

SGaist

You're welcome !

Since your view is working please update the thread title prepending [solved] so other forum users may know a solution has been found :)

Hareen Laks

just forgot. :)

thanks.