def _build_tree_view(self):
self.tree = Tree()
self.tree.add_filter("even",self.even_filter)
self.tree.add_filter("odd",self.odd_filter)
self.tree.add_filter("flat",self.flat_filter,{"flat": True})
self.tree.add_filter("leaf",self.leaf_filter)
self.view_tree = self.tree.get_viewtree()
self.mod_counter = 0
self.view_tree.register_cllbck('node-added-inview',self._update_title)
self.view_tree.register_cllbck('node-modified-inview',self._modified_count)
self.view_tree.register_cllbck('node-deleted-inview',self._update_title)
desc = {}
col_name = 'label'
col = {}
col['title'] = "Title"
col['value'] = [str, self.task_label_column]
col['expandable'] = True
col['resizable'] = True
col['sorting'] = 'label'
col['order'] = 0
desc[col_name] = col
tree_view = TreeView(self.view_tree, desc)
# Polish TreeView
def on_row_activate(sender,a,b):
print(
"Selected nodes are: {0!s}".format(
tree_view.get_selected_nodes()
)
)
tree_view.set_dnd_name('liblarch-demo/liblarch_widget')
tree_view.set_multiple_selection(True)
tree_view.set_property("enable-tree-lines", True)
tree_view.connect('row-activated', on_row_activate)
return tree_view
