Coloring a QTableview column

[Potch]

Hello,

So far I use the following way to color the colum of a tableview :

// Color the colum
    for (int i = FirstLine; i < Max_Number_of_Lines; i++)
        InputDataModel->setData(InputDataModel->index(i, SelectedColumn), SelectedVariableColor, Qt::BackgroundRole);

// Color the colum
    for (int i = FirstLine; i < Max_Number_of_Lines; i++)
        InputDataModel->setData(InputDataModel->index(i, SelectedColumn), SelectedVariableColor, Qt::BackgroundRole);

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It works but it is very slow when Max_Number_of_Lines is greater than 2000. Then I have to wait 2 or 3s before it's colored.

Would you know if there is a faster (and more clever) way to proceed ?

Thanks in advance

[talk2amulya]

1. create your own item delegete
2. derive it from QStyledItemDelegate
3. override the paint function
4. use the option variable to get the rect and fill it with ur color(read about it from Qt Assistant first)
5. set this delegate on ur choice of column using setItemDelegateForColumn

[Potch]

Ok thanks.
I will follow your advises.