How to make QLabel text selectble in QStyledItemDelegate type of class

goetz

Unfortunately, I don't have any solution for this at all, not even for using that functionality outside of a list/tree view.

umen242

Thanks for the help , still looking for solution ...

stima_ua

@
pseudo code

class QModelIndex;

IView {
public:
virtual void setSelected(const QModelIndex& index, bool flag) = 0;
}

MyListView : public QListView, public IView {
ItemDelegate *delegate;

public:
    MyListView(QWidget *parent = 0) : QListView(parent)
    {
         delegate = new ItemDelegate;
         delegate->setView(this);

        setItemDelegate(delegate);
    }
 
void setSelected(const QModelIndex& index, bool flag) {
       QListWidgetItem *item = item(index.row());
       MyWidget *w = static_cast<MyWidget*>(itemWidget(item));

      w->setSelected(flag);
}

}

void ItemDelegate::setView(IView *view)
{
this->view = view; //pimpl
}

void ItemDelegate::paint (QPainter* p, const QStyleOptionViewIte& o, const QModelIndex& i) const
{
QStyleOptionViewItemV4 option = o;

initStyleOption(&option, i);

bool selected = ( option.state &  QStyle::State_Selected );
view->setSelected(i, selected);

QSyledItemDelegate::paint(p, o, i);
}
@

KA51O

How about using a lineEdit or something like this (some kind of text editor widget) and set the image containing the information you additionally want to display as the background of that text editor field?

umen242

i have no problem , i just need to see how to do it right .. some start point

andre

I gather you need to have text selectable for a read-only table, right?

So... what you could try, is to set QLabel as your 'editor' by using a custom delegate or by using a class like [[doc:QItemEditorCreator]] or [[doc:QStandardItemEditorCreator]]. Then, you could use a [[doc:QIdentityProxyModel]] to make the cells in your table writable again. That way, when you click a table cell, the editor will be used. However, in this case the editor will be a QLabel: still not editable, but selectable nontheless.

umen242

Hi and thanks for the replay ,
im using ListView , and the selectable text is part of the item delegate
in this item there will be also images. its not a table.

umen242

Ok i found great solution , i really what you to say what you think ,
after looking at the code of "QTwitter":http://qt-apps.org/content/show.php/qTwitter?content=99087 , i saw it uses custom widget as the item
i mean widget that made in the Q Designer .

andre

If you are after a list-based UI like that, I would suggest looking into embedding a QML-based listview in your application.

umen242

Hi thanks for the replay , yes i do look after list based look.
I will look into QML .
can you give me your opinion about the solution used in the QTwitter ?

andre

Sorry, I have no time to dig through its code right now, and I can't judge only based on screenshots.
Just using a widget for every item in the model would not be performant for larger models. No idea if that is the approach taken though.

umen242

thanks again for your opinion , its not large list its like 30 items in first in last out kind of way .

How to make QLabel text selectble in QStyledItemDelegate type of class

IView { public: virtual void setSelected(const QModelIndex& index, bool flag) = 0; }

}

IView {
public:
virtual void setSelected(const QModelIndex& index, bool flag) = 0;
}