Skip to content
  • Categories
  • Recent
  • Tags
  • Popular
  • Users
  • Groups
  • Search
  • Get Qt Extensions
  • Unsolved
Collapse
Brand Logo
  1. Home
  2. Qt Development
  3. General and Desktop
  4. TableView cell showing data and image
Forum Updated to NodeBB v4.3 + New Features

TableView cell showing data and image

Scheduled Pinned Locked Moved General and Desktop
5 Posts 2 Posters 1.6k Views 1 Watching
  • Oldest to Newest
  • Newest to Oldest
  • Most Votes
Reply
  • Reply as topic
Log in to reply
This topic has been deleted. Only users with topic management privileges can see it.
  • M Offline
    M Offline
    mookie
    wrote on last edited by
    #1

    Im new to QT so theres probably something that i am missing here, but i have created the following class

    @
    // Log for database
    // DateTime, CurrentUser, LogType, Description

    LogModel::LogModel(QSqlDatabase database, QObject *parent)
    : QSqlRelationalTableModel(parent, database)
    {
    connect(this, SIGNAL(rowsInserted(const QModelIndex&, int, int)), SIGNAL(countChanged()));
    connect(this, SIGNAL(rowsRemoved(const QModelIndex&, int, int)), SIGNAL(countChanged()));

    }

    QVariant LogModel::data(const QModelIndex& idx, int role) const
    {
    QVariant value= QSqlQueryModel::data(idx, role);

    // Column 1 is for icon
    if (idx.column()==1 && role==Qt::DecorationRole)
    {
         QString iconstring = QString("%1").arg(idx.data().toString());
         QIcon icon = QIcon(QPixmap(iconstring));
         value= icon;
    
    
    }
    
      return value;
    

    }
    @

    in my main class I set the header data as follows

    @
    m_logModel->setTable(QLatin1String("Logs"));
    if (m_logModel->lastError().isValid())
    return false;
    m_logModel->setHeaderData(1,Qt::Horizontal,"",Qt::DecorationRole);
    m_logModel->setHeaderData(2,Qt::Horizontal,QObject::tr("Date"));
    m_logModel->setHeaderData(3,Qt::Horizontal,QObject::tr("User"));
    m_logModel->setHeaderData(4,Qt::Horizontal,QObject::tr("Description"));
    @

    The problem i am having is that cell 1 is showing both the returned icon as well as the result from that database.
    what am i doing incorrect?

    1 Reply Last reply
    0
    • SGaistS Offline
      SGaistS Offline
      SGaist
      Lifetime Qt Champion
      wrote on last edited by
      #2

      Hi and welcome to devnet,

      Do you mean that you get both the text from the database and the icon your are providing ? If so it's normal, the decoration doesn't hide the text.

      You would need to either not return the text when asks for the display role, add a QIdentityProxyModel that does that (keeps your model clean) or create a QStyledItemDelegate that doesn't paint the text.

      Hope it helps

      Interested in AI ? www.idiap.ch
      Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

      1 Reply Last reply
      0
      • M Offline
        M Offline
        mookie
        wrote on last edited by
        #3

        Ill try that, i suppose thats why it comes across as data a second time but with a different role? can i just return null?

        1 Reply Last reply
        0
        • SGaistS Offline
          SGaistS Offline
          SGaist
          Lifetime Qt Champion
          wrote on last edited by
          #4

          Yes you can, but are you sure you won't need it elsewhere ? That's why you should rather use QIdentityProxyModel or a custom delegate. Doing so your model will be easily reusable.

          Interested in AI ? www.idiap.ch
          Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

          1 Reply Last reply
          0
          • M Offline
            M Offline
            mookie
            wrote on last edited by
            #5

            Yes, im not using this data for anything other than for logging purposes. I will look into QIdentityProxyModel though. thank you for your help

            1 Reply Last reply
            0

            • Login

            • Login or register to search.
            • First post
              Last post
            0
            • Categories
            • Recent
            • Tags
            • Popular
            • Users
            • Groups
            • Search
            • Get Qt Extensions
            • Unsolved