Hi,
I have built up an app using glade-2 and it loads and runs fine using
gtk.glade. One of my widgets is a TreeView using a ListStore and I'm
having a bit of trouble figuring out how to make all the columns
expand.
Google hasn't turned up a solution and the PyGTK FAQ Entry 13.19
gives a hint as such:
Another thing to note is that renderers use the normal GTK packing
mechanism. If you want one renderer to expand and take up any extra
space (or `compete' for it if more than one cell has expand=TRUE),
pack it with expand=TRUE, and vice-versa.
I not sure how to perform the packing of the column so I can set
expand to TRUE.
Here's what I've got so far:
class ListView:
def __init__ (self, view, model, hdrs, renderers, sel_cb):
self.view = view
view.set_model (model)
view.set_headers_visible (gtk.TRUE)
for i in xrange (len (hdrs)):
# Set text to i+2 to skip over the PYOBJECT in column 0 of
# the model and the BOOLEAN in column 1.
col = gtk.TreeViewColumn (hdrs[i], renderers[i],
text=i+2, editable=1)
renderers[i].set_property ('xalign', 0.50)
renderers[i].set_property ('font-desc', font_fixed)
col.set_resizable (gtk.TRUE)
col.set_alignment (0.50)
# This is obviously wrong.
col.pack_start (renderers[i], expand=gtk.TRUE)
view.append_column (col)
view.show()
sel = view.get_selection ()
sel.set_mode ('single')
sel.connect ('changed', sel_cb)
Elsewhere, I define the following and pass them to the ListView init
method:
types = [ gobject.TYPE_STRING ] * 10
renderers = [ gtk.CellRendererText () ] * 10
hdrs = [ 'Address', 'Name',
'Bit 7', 'Bit 6', 'Bit 5', 'Bit 4',
'Bit 3', 'Bit 2', 'Bit 1', 'Bit 0' ]
And the view is instantiated with this:
def setup_treeview (self, widget_name, types, hdrs, renderers, sel_cb):
model = ListModel (*types)
view = self.wTree.get_widget (widget_name)
view = ListView (view, model.store, hdrs, renderers, sel_cb)
The problem code is:
# This is obviously wrong.
col.pack_start (renderers[i], expand=gtk.TRUE)
which generates quite a few of these:
(gui.py:26663): Gtk-CRITICAL **: file gtktreeviewcolumn.c: line 1234
(gtk_tree_view_column_pack_start): assertion `!
gtk_tree_view_column_get_cell_info (tree_column, cell)' failed
>From reading the docs, I kinda think that my call to col.pack_start()
is not the right approach as it seems to expect a specific cell, not a
renderer instance.
Just in cases it's of interest, here's how I'm adding my data to the
list store model:
def insert_row (self, data):
"""Also adds the python object, 'data' to the store in the first
column. Set the value of the boolean to TRUE so we can edit the
cells later.
"""
iter = self.store.append ()
args = [0, data, 1, gtk.TRUE]
for i in range (len (data)):
args.extend ([i+2, data[i]])
self.store.set (iter, *args)
I'm using the current 2.2.x gtk+ libs.
Any insight into how to do this is appreciated.
Thanks.
Ted Roth
_______________________________________________
pygtk mailing list [EMAIL PROTECTED]
http://www.daa.com.au/mailman/listinfo/pygtk
Read the PyGTK FAQ: http://www.async.com.br/faq/pygtk/
