HightLight particular Row in QStandardItemModel QTableView

[rex]

Hello every one i am working a data representing software where i show some pressure type data in a QTableView.. I have written a function to tell if the pressure data has exceeded the limits which is set by the user in the GUI. But i wanted to highlight the QTableView Cell which has crossed the limit. I could not find out how to hightlight. Can some one pls help me out with this problem i don't know how to hightlight the a particular row data in table view.. The Data in the Table View is refreshed every 3 seconds.

for(int kt=0; kt<pressuredata.count(); kt++)
	 {
		 if((maxval < pressuredata.at(kt).toFloat())||(minval > pressuredata.at(kt).toFloat()))
			{
					qLed2_2->setColor(Qt::red);
					label_9->setText("Pressure Limit Excceded");
					setlimiflag =1;
                                        limitposi = kt;
					break;
			}			
 
		  else	
			   setlimiflag =0;

for(int kt=0; kt<pressuredata.count(); kt++)
	 {
		 if((maxval < pressuredata.at(kt).toFloat())||(minval > pressuredata.at(kt).toFloat()))
			{
					qLed2_2->setColor(Qt::red);
					label_9->setText("Pressure Limit Excceded");
					setlimiflag =1;
                                        limitposi = kt;
					break;
			}			

		  else	
			   setlimiflag =0;

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I am thinking the position kt can be used to highlight the particular row in the table view which is out of limits.. Give me some suggestions on how i could go about this. and how should i highlight a row in QTableView. ??

Regards

[aamer4yu]

You can set background color for all columns in the row u want.
Other way is to use a delegate. In delegate you can check for a condition and then paint accordingly

[Octal]

Currently, I see two ways of doing this :

try setting the Qt::BackgroundRole of the designated cell in your model.

Otherwise, you could try defining your own delegate (QStyledItemDelegate) and overriding the

QStyledItemDelegate::paint

QStyledItemDelegate::paint

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method to highlight your cell :

void MyDelegate::::paint ( QPainter * painter, const QStyleOptionViewItem & option, const QModelIndex & index ) const 
{
    int value = index.model()->data().toInt();
    if (value > max)
    {
        painter->fillRect(option.rect, Qt::red);
    }
}

void MyDelegate::::paint ( QPainter * painter, const QStyleOptionViewItem & option, const QModelIndex & index ) const 
{
    int value = index.model()->data().toInt();
    if (value > max)
    {
        painter->fillRect(option.rect, Qt::red);
    }
}

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(didn't try the code).