Setting size of QTableView columns to fit the contents programatically

[Pavel Bazika]

Hi,

I'm trying to set columns width of QTableView to fit displayed contents.

Using QHeaderView::ResizeToContents is not an option, because the model displayed by QTableView represent quite big data on remote server. QHeaderView::ResizeToContents causes all data is read first to get the biggest width, which is something to be avoided (otherwise I could use QTableWidget).

Instead I'm using a proxy where I monitor data passing thru and resize the column when neccesary. The problem is, that I don't know how to get the proper width. I tried

QFontMetrics{ tableWidget->font() }.horizontalAdvance(str)

and

QFontMetrics{ tableWidget->font() }.boundingRect(str).width()

and then I call

tableWidget->horizontalHeader()->resizeSection()

but the value from font metrics is not big enough and the string still doesn't fit into the cell.

Thanks for any help

Pavel

[Christian Ehrlicher]

You have to add also some margins left and right of the text.