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  1. #include <QFileSystemModel>
  2.  
  3. TreeModel_left::TreeModel_left(QObject* parent) : TreeModel(parent) {}
  4. //TreeModel inherits from QFileSystemModel
  5.  
  6. QVariant TreeModel_left::data(const QModelIndex& index, int role) const
  7.     {
  8.          if (index.column() == 0 && role == Qt::CheckStateRole) {
  9.              return checkstatus; //checkstatus is Qt::CheckState
  10.         }
  11.  
  12.       return QFileSystemModel::data(index, role);
  13.     }
  14.  
  15. Qt::ItemFlags TreeModel_left::flags(const QModelIndex& index) const {
  16.     if (!index.isValid())
  17.             return Qt::NoItemFlags;
  18.  
  19.         Qt::ItemFlags flags = QFileSystemModel::flags(index);
  20.         if (index.column() == 0) {
  21.             flags |= Qt::ItemIsUserCheckable;
  22.         }
  23.  
  24.         return flags;
  25. }
  26.  
  27. bool TreeModel_left::setData(const QModelIndex& index, const QVariant& value, int role) {
  28.  
  29.         if (index.column() == 0 && role == Qt::CheckStateRole) {
  30.             Qt::CheckState state = static_cast<Qt::CheckState>(value.toInt());
  31.             checkstatus = state; //checkstatus is Qt::CheckState
  32.         }
  33.  
  34.         return QFileSystemModel::setData(index, value, role);
  35. }
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https://ideone.com/Xrrdo9
language:
C++ (gcc 8.3)
created:
11 years ago
visibility:
secret

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