How to simply change the background colour of a cell inside a TableView

[VRonin]

@G4bandit said in How to simply change the background colour of a cell inside a TableView:

Do not know how to

It's the same as

QSortFilterProxyModel* proxyModel = new QSortFilterProxyModel(this);
   proxyModel->setSourceModel(TblModel);
   ui->TV_DBOut->setModel(proxyModel);

but instead of QSortFilterProxyModel use ExtraRolesProxyModel

[G4bandit]

I got it!!!

SUCESS :D

Thanks a lot

[G4bandit]

If someone ask how to change the color of headers,- here is a helpful link:

https://stackoverflow.com/questions/32147213/how-to-change-the-background-color-from-the-headerhorizontal-vertical-qtable#32147945

tview->model()->setHeaderData(0,Qt::Horizontal,QBrush(QColor("red")),Qt::BackgroundRole);
tview->show();

QApplication::setStyle(QStyleFactory::create("Fusion"));

The last line was on my PC (Win) necessary to get the effect.

[paul_espinosa]

@G4banditi need to do somo simililar can help me please , i cant understand

[VRonin]

I now implemented a generic proxy for this, I called it Role Mask Proxy Model. I have an example that changes the background, it uses QStringListModel but it's exactly the same with other base models

[paul_espinosa]

@VRonin so mucth thanks , wonderfull library, i can do

[paul_espinosa]

if i use a QSqlRelationalTableModel, Role Mask Proxy Model works????

[VRonin]

Yes, works on any model

[paul_espinosa]

@VRonin thanks for your help, now i have a problem, i can not save the data of my QSqlTableModel , i used the example exem_rolemaskeditablesql.cpp i can edit the data but i can not save,

[VRonin]

If you call addMaskedRole passing either Qt::DisplayRole or Qt::EditRole any change will stay in the proxy and not be passed to the source model.

You should only mask the roles that you need, in this case Qt::BackgroundRole.

If it's still not clear, please post us the code using RoleMaskProxyModel and we'll be more specific on the changes to make