How to set text color QTableView with QFileSystemModel in Qt?

Question

I use Qtableview to show file and folder (only show icon, filename, size). I want to paint text color(all text in row) for a few specific files.

Eg: file starts with 'ABC' is gray; 'XYZ' is red,...

I would derive a new QStyledItemDelegate, override `paint` and change the `.palette` option on the way. — Johannes Schaub - litb, May 21 '18 at 10:59

score 0 · Accepted Answer · answered May 21 '18 at 11:32

0

Best practice is to use QIdentityProxyModel and override a data method for necessary roles. For example:

QVariant MyProxy::data(const QModelIndex &index, int role) const
{
  // Whatever you want in condition:
  if ( sourceModel()->data(index, Qt::TextRole).toString() == "SomeFile.txt" )
    switch( role )
    {
    case Qt::ForegroundRole: return Qt::Red;
    case Qt::BackgroundRole: return Qt::Blue; // or any brush, etc
    default:
      break;
    }

  return sourceModel()->data(role);
}

//...
MyProxy proxy = new MyProxy{};
proxy->setSourceModel( yourModel );
view->setModel( proxy );

answered May 21 '18 at 11:32

Dmitry Sazonov

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But when reuse this model, I can't convert QFileSystemModel to use a few function such as filePath,... and show size both is 0 bytes – kien bui May 22 '18 at 02:42
Please Keep model unchanged, only change color of row – kien bui May 22 '18 at 02:51
@kienbui you don't need to modify anything via proxy model. Do what you want with source model - changes will be applied automatically. – Dmitry Sazonov May 22 '18 at 06:54
but when I use proxymodel, size of file set is 0 bytes – kien bui May 22 '18 at 06:55

How to set text color QTableView with QFileSystemModel in Qt?

1 Answers1