Add selection checkbox to display selected state of treeview rows

Closes #13457

tryton/tryton/gui/main.py

@@ -772,6 +772,9 @@ class Main(Gtk.Application):
             expand=True, fill=True, padding=0)
         treeview = screen.current_view.treeview
         treeview.set_headers_visible(False)
+        for col in treeview.get_columns():
+            if col._type in {'selection', 'optional', 'drag'}:
+                col.set_visible(False)
 
         # Favorite column
         column = Gtk.TreeViewColumn()

tryton/tryton/gui/window/view_form/view/list.py

@@ -451,6 +451,8 @@ class ViewTree(View):
             grid_lines = Gtk.TreeViewGridLines.VERTICAL
 
         super().__init__(view_id, screen, xml)
+
+        self.set_selection_column()
         self.set_drag_and_drop()
 
         self.mnemonic_widget = self.treeview
@@ -616,6 +618,21 @@ class ViewTree(View):
                     else:
                         arrow.clear()
 
+    def set_selection_column(self):
+        def select_data_func(column, cell, model, iter_, selection):
+            cell.set_property('active', selection.iter_is_selected(iter_))
+
+        selection = self.treeview.get_selection()
+        column = Gtk.TreeViewColumn()
+        column.set_sizing(Gtk.TreeViewColumnSizing.FIXED)
+        column.name = None
+        column._type = 'selection'
+        cell = Gtk.CellRendererToggle()
+        cell.set_sensitive(False)
+        column.pack_start(cell, expand=False)
+        column.set_cell_data_func(cell, select_data_func, selection)
+        self.treeview.insert_column(column, 0)
+
     def set_drag_and_drop(self):
         dnd = False
         if self.children_field:
@@ -1153,7 +1170,7 @@ class ViewTree(View):
                 column.set_visible(not unique or bool(self.children_field))
         if self.children_field:
             for i, column in enumerate(self.treeview.get_columns()):
-                if (self.draggable or self.optionals) and not i:
+                if column._type in {'selection', 'optional', 'drag'}:
                     continue
                 if column.get_visible():
                     self.treeview.set_expander_column(column)