problem with editors on repaint of model with use of custom delegate

[pospiech]

I have a tableView which uses a DoubleSpinBoxDelegate as an editor. That itself works fine.

But If I repaint the whole model after one entry has changed (because all the other entries depend on that value), the editor does not close and all other editors do not work anymore.

The delegates are set up using


// delay
delegateSpinBox = new DoubleSpinBoxDelegate(this) ;
delegateSpinBox->setEditor(new QDoubleSpinBox(this));
delegateSpinBox->setLocalLanguage(QLocale::German);
delegateSpinBox->Editor()->setRange(10,20e7);
delegateSpinBox->Editor()->setDecimals(3);
delegateSpinBox->Editor()->setSingleStep(1);
tableViewVariation->setItemDelegateForColumn(4,delegateSpinBox);


The model entries have to change in case the delay changes:



void widgetCouplerVariationList::OnTableDataChanged(con st QModelIndex & index)
{
int col = index.column();
int row = index.row();

switch(col)
{
case 4: // delay
{
double delay = index.data().toDouble();
(*VariationList)[row].delay = delay;
updateModelList();
break;
}
} // end switch




void widgetCouplerVariationList::updateModelList()
{
size_t size = VariationList->size();
if (size > 0)
{
double length = 0;

modelVariationList->blockSignals(true);
// modelVariationList->clear();
modelVariationList->setRowCount(size);
modelVariationList->setColumnCount(5);

int column = 0;

QStandardItem *item;
item = new QStandardItem(QString("lines")); modelVariationList->setHorizontalHeaderItem(column, item); column++;
item = new QStandardItem(QString("period")); modelVariationList->setHorizontalHeaderItem(column, item); column++;
item = new QStandardItem(QString("graylevel")); modelVariationList->setHorizontalHeaderItem(column, item); column++;
item = new QStandardItem(QString("chirp")); modelVariationList->setHorizontalHeaderItem(column, item); column++;
item = new QStandardItem(QString("delay")); modelVariationList->setHorizontalHeaderItem(column, item); column++;
item = new QStandardItem(QString("length")); modelVariationList->setHorizontalHeaderItem(column, item); column++;

tableViewVariation->verticalHeader()->setDefaultSectionSize(tableViewVariation->verticalHeader()->minimumSectionSize()+2);

for (int i = 0; i < (int)size ; i++)
{

double velocity = CouplerSettings.Velocity;
double chirp = (*VariationList)[i].chirp * 1e3;
double delay = (*VariationList)[i].delay;
double phase = (*VariationList)[i].phase;
length = length + velocity*delay*1e-3;
int column = 0;

QStandardItem *newItem;
newItem = new QStandardItem(QString("%L1").arg((*VariationList)[i].powerIndex + 1));
modelVariationList->setItem(i, column, newItem); column++;

newItem = new QStandardItem(QString("%L1").arg((*VariationList)[i].period,0,'f',3));
modelVariationList->setItem(i, column, newItem); column++;

newItem = new QStandardItem(QString("%L1").arg(int(phase)));
//newItem->setFlags(newItem->flags() & ~Qt::ItemIsEditable);
modelVariationList->setItem(i, column, newItem); column++;

newItem = new QStandardItem(QString("%L1").arg(chirp,0,'f',4));
modelVariationList->setItem(i, column, newItem); column++;

newItem = new QStandardItem(QString("%L1").arg(delay,0,'f',3));
modelVariationList->setItem(i, column, newItem); column++;

newItem = new QStandardItem(QString("%L1").arg(length,0,'f',3));
modelVariationList->setItem(i, column, newItem); column++;

}
tableViewVariation->setModel(modelVariationList);
modelVariationList->blockSignals(false);
}
}



Now if 'updateModelList()' gets called from within 'OnTableDataChanged(const QModelIndex & index)' the editors of delegates do not work anymore and the current one does no vanish.