I'm developing an application using Quickly. I have a Gtk.TreeView with a Gtk.ListStore as its model. The selection mode of the Gtk.SelectionMode is set to Gtk.SelectionMode.MULTIPLE.

The problem is that the Gtk.SelectionMode does not behave as it should:

• Only one row can be selected at a time.


• Impossible to select multiple rows using the Ctrl or Shift key.


• Once a row is selected, it can't be deselected using the Ctrl key.


• Nothing happens when I press the arrow keys.

The problem can be easily reproduced by creating a new Ubuntu application using Quickly (or you can download a test application below).

$ quickly create ubuntu-application test

$ cd test

$ quickly design

Create a TreeView with a ListStore as its model. Set the mode of the GtkTreeSelection to 'Multiple'. Add some columns and values to the ListStore. Add some TreeViewColumns with CellRendererTexts to the Treeview.

$ quickly run -v

Note you can't select multiple rows.

Some things I've already tried, but did not change anything:

• Setting the selection mode in the code.

  
  
  

  self.ui.selection.set_mode(Gtk.SelectionMode.MULTIPLE)

  
  
  

  or

  
  
  

  self.ui.treeview.get_selection().set_mode(Gtk.SelectionMode.MULTIPLE)




• Moving the GtkTreeSelection <child> below the GtkTreeViewColumn <child> in the UI file.




• Deleting the GtkTreeSelection from the UI file and setting the selection with

  
  
  

  self.ui.treeview.get_selection().set_mode(Gtk.SelectionMode.MULTIPLE)

Am I overlooking something obvious? Or could this be a bug?

On a side note, if you set the selection to 'Single', it's also not possible to deselect the row.

EDIT

If you'd like to help me out, you can download a test application here instead of creating a new project with Quickly on your own. Please note you need Quickly to run it.

$ cd test

$ quickly run

I've implemented some callbacks for testing purposes in test/test/TestWindow.py. You can find the UI definition in test/data/ui/TestWindow.ui.