David M. Cook wrote:
You shouldn't be needing to do all thse tricks :)What was the secret?I spoke too soon. I'm no closer to understanding how Rectangles are handled
by pygtk. I was embarassed that I might be rehashing old ground, but there
is almost nothing on this subject in over 11M of pygtk list archives.
gdk.Rectangle has a copy method. Playing around a bit, you can get a
GdkRectangle by copying, say, Widget.allocation:
rect = somewidget.allocation.copy()
However, I tried passing this to TreeView.get_visible_rect, but the passed
in rect doesn't change. I was able to get what I wanted (the first visible
row & col on the top left (origin) of the TreeView) with
TreeView.get_path_at_pos(0,0) (if you want the column number in the
callback, you'll need to attach an integer to ViewColumn at creation time;
there are still a few holes in the C-Gtk TreeView API.)
There isn't very many cases in GTK where inout GdkRectangle arguments are used. For in args, you should be able to just pass a sequence of integers to get it to work. As out arguments are not pythonic, I have converted them to return values in most places. If I have missed one, please submit a bugzilla bug so that it can be fixed.
James.
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