lugarci2
22nd October 2016, 17:57
Hi, I have a QTableView with a QSortFilterProxyModel as it's model. Source model for the proxy is a custom model subclassing QAbstractTableModel. I update the source model every minute. I made a function for that thats get called every minute:
void CustomModel::update()
{
for(int i = 0; i < alarms.size(); i++)
alarms[i]->addMinute();
timer->start((60 - QTime::currentTime().second()) *1000);
emit dataChanged(index(0, 0), index(alarms.size(), 3));
}
The problem is that the proxy model doesn't update it's values, except if i repaint the window (by minimizing and maximizing the window), or click a table header. Also i want it sorted, and does that a couple of times, but later it stops. Here is the code i use on my main window:
proxyModel->setSourceModel(&CustomModelInstance);
proxyModel->setDynamicSortFilter(true);
proxyModel->sort(2, Qt::DescendingOrder);
I thought that by calling dataChanged() when updating values on the source model every proxy model should also update itself. What im doing wrong?
void CustomModel::update()
{
for(int i = 0; i < alarms.size(); i++)
alarms[i]->addMinute();
timer->start((60 - QTime::currentTime().second()) *1000);
emit dataChanged(index(0, 0), index(alarms.size(), 3));
}
The problem is that the proxy model doesn't update it's values, except if i repaint the window (by minimizing and maximizing the window), or click a table header. Also i want it sorted, and does that a couple of times, but later it stops. Here is the code i use on my main window:
proxyModel->setSourceModel(&CustomModelInstance);
proxyModel->setDynamicSortFilter(true);
proxyModel->sort(2, Qt::DescendingOrder);
I thought that by calling dataChanged() when updating values on the source model every proxy model should also update itself. What im doing wrong?