Hi list,
I'm using drag & drop on an empty treeview.
When the data are drop i get this warning and nothing happen in the
treeview:
GtkWarning: gtk_tree_view_scroll_to_cell: assertion
`tree_view->priv->tree != NULL' failed
Now when i append an empty row: self.model.append(None, ["","",'','',''])
It works but this empty row is annoying me after.
How can i use DnD on an empty treeview?
Thanks for the answer.
regards,
Philippe Collet
Here is the code i use:
TARGETS = [
('text/plain', 0, 0),
('TEXT', 0, 1),
('STRING', 0, 2),
]
self.enable_model_drag_source(gtk.gdk.BUTTON1_MASK,
[('text/plain', 0, 0)],
gtk.gdk.ACTION_DEFAULT | gtk.gdk.ACTION_COPY)
self.connect("drag-data-get", self.drag_data_get_data)
self.enable_model_drag_dest(TARGETS,gtk.gdk.ACTION_DEFAULT)
self.connect("drag_data_received", self.drag_data_received_cb)
def drag_data_received_cb(self, treeview, context, x, y, selection,
info, etime):
path = None
position = None
iter = None
model = treeview.get_model()
name = selection.data
print name
drop_info = treeview.get_dest_row_at_pos(x, y)
if drop_info:
path, position = drop_info
iter = model.get_iter(path)
list=
self.kernelM.guiM.window.visuPanel.fTreeview.get_data_list_from_name(name)
if (position == gtk.TREE_VIEW_DROP_BEFORE
or position == gtk.TREE_VIEW_DROP_INTO_OR_BEFORE):
model.insert_before(None,iter,[name,list[0],list[1],list[2],list[3]])
elif position == gtk.TREE_VIEW_DROP_AFTER:
new_iter = model.insert_after(parent=None, sibling=iter,
row=[name,list[1],list[2],list[3],list[4]])
if model.iter_next(iter) != None:
if context.action == gtk.gdk.ACTION_MOVE:
context.finish(True, True, etime)
self.move_to_end()
return True
def drag_data_get_data(self, treeview, context, selection,
target_id,etime):
#if (GTK_WIDGET_REALIZED(treeview)):
#treeselection = treeview.get_selection()
#model, iter = treeselection.get_selected()
data = self.selItems_list[0].name
selection.set(selection.target, 8, data)
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