What is the difference between selectionChanged & currentChanged?

[IndikaU]

Hi,

I'm using a a QTableView to show data of QStandardItem model. For each individual cell change I'm going to update a custom data structure. However to detect the current cell change I need a signal to catch.

I found QItemSelectionModel::currentChanged & QItemSelectionModel::selectionChanged in the documentation. Anyway I'm bit confused with these two. Can anyone please explain the different ( despite of the signatures ) purposes of these two?

Thank you,
Indika...

[saimel]

The difference consists in the data type of the parameters of the signals, QItemSelectionModel::currentChanged receive two parameters, boths are QModelIndex data type and QItemSelectionModel::selectionChanged receive two parameters too, but this are QItemSelection data type, so in dependence of you want to do with this values you have to decide which signal to catch.

[ChrisW67]

The current cell is the one that you would edit if you started typing (or pressed F2)... it is a single cell and not necessarily related to the selection. On screen it typically has a faint box border.

The selection is a set of highlighted cells that would typically be the target of a copy/paste/drag type action. The selection can be empty, a single cell, whole rows/columns, contiguous or disjoint collections of cells depending on options. On screen the selection is typically rendered as white text on a dark background instead of black on white like unselected cells.