Black list of QCombobox items

VRonin

Is the list of options in the combobox fixed or does it change from cell to cell?

Kaluss

For each row is different.
This is a product list which has to set different label.

VRonin

How does each row know what list to show?

Kaluss

From configuration.
It's a global object.

For each combobx the list of items will be the same, but which item is set it depends on configuration.
Each row represents one product from configuration.

VRonin

@Kaluss said in Black list of QCombobox items:

For each combobx the list of items will be the same

That's what I wanted to know

#include <QStringListModel>
#include <QComboBox>
#include <QStyledItemDelegate>
class ComboDelegate : public QStyledItemDelegate{
    Q_DISABLE_COPY(ComboDelegate)
public:
    ComboDelegate(QObject* parent = Q_NULLPTR)
        : QStyledItemDelegate(parent)
        , m_options(new QStringListModel(this))
    {}
    QStringList options() const {return m_options->stringList();}
    void setOptions(const QStringList& opt){
        m_options->setStringList(opt);
    }
    virtual QWidget* createEditor(QWidget *parent, const QStyleOptionViewItem &option, const QModelIndex &index) const Q_DECL_OVERRIDE{
        Q_UNUSED(option);
        Q_UNUSED(index);
        QComboBox* editor = new QComboBox(parent);
        editor->setModel(m_options);
        return editor;
    }
    virtual void setEditorData(QWidget *editor, const QModelIndex &index) const Q_DECL_OVERRIDE{
        QComboBox* cbEditor = qobject_cast<QComboBox*>(editor);
        Q_ASSERT(cbEditor);
        cbEditor->setCurrentIndex(cbEditor->findText(index.data().toString()));
    }
    virtual void setModelData(QWidget *editor, QAbstractItemModel *model, const QModelIndex &index) const Q_DECL_OVERRIDE{
        QComboBox* cbEditor = qobject_cast<QComboBox*>(editor);
        Q_ASSERT(cbEditor);
        model->setData(index,cbEditor->currentText());
    }
private:
    QStringListModel* m_options;
};

Kaluss

Hi,
I get the error:
qt has no member named 'stOptions'.

Its shouldn't be there just options?

If I change it to options I get:
error: no matching function for call to 'ComboDelegate::options(QStringList&)'
case 0: _t->options(reinterpret_cast< QStringList>(_v)); break;
^

VRonin

I updated the code above to make it more efficient. how are you using it?

Kaluss

this->m_tableview_main->setItemDelegateForColumn(4, new ComboDelegate);

But I have the same problem as above.
The list of available items is black.

What I have to do show editor permanently not only at edition mode?

VRonin

@Kaluss said in Black list of QCombobox items:

What I have to do show editor permanently not only at edition mode?

reimplement paint() on the delegate.

Before I get into it. Are you 100% adamant you don't set a stylesheet anywhere in the tableView or the widgets that are in parental relationship to it?

Kaluss

Hi,
I found the reason. But it's not completely clear for me.
It was:
this->m_tableview_main->setStyleSheet("background-color:transparent;");

Anyway, thanks for your help and examples.
It helped me much.

BR/T