[Interest] Proxy model prepending rows to model
Clément Geiger
clement.geiger at gmail.com
Wed Oct 23 11:07:23 CEST 2013
Hi,
I have a base model, a table with two columns and a bunch of rows.
To display it in a QComboBox, I'm using a proxy model that merges the two
columns in one.
>From there on I thought it would be cool to a row on top of everything
saying "<Select Stuff>".
So I did that in the ProxyModel:
int ServicesListProxyModel::rowCount(QModelIndex const &) const
{
return model()->rowCount() + 1;
}
// ...
QVariant ServicesListProxyModel::data(QModelIndex const & index, int role)
{
if(index.row() == 0)
return tr("Select a service");
QModelIndex sourceId = model()->index(index.row() - 1,
ServicesListModel::Column_ID);
QModelIndex sourceName = model()->index(index.row() - 1,
QiServicesListModel::Column_Name);
// return the normal line of text agregating id and name
}
It works nicely, however I get this in the console output:
QAbstractItemModel::endInsertRows: Invalid index ( 79 , 0 ) in model
QProxyModel(0xad8050)
Am I missing something obvious here ?
Thanks a bunch in advance :)
Clément
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