Hi,
I've received a question about a taskbar app I wrote, and I'm hoping
someone here might recognise the problem. After some correspondence
we've found that the colours in a pixmap appear strange when the app
is run remotely on a Debian box, using a Solaris box for the display.
When it can't find anything better, the taskbar uses a default icon
created from inline xpm data like this:
default_icon = [
"16 16 2 1",
"# c #000000",
". c None",
"................",
"................",
"..############..",
"..#..........#..",
"..#..........#..",
"..#..........#..",
"..#..........#..",
"..#..........#..",
"..#..........#..",
"..#..........#..",
"..#..........#..",
"..#..........#..",
"..#..........#..",
"..############..",
"................",
"................"]
The way it does this is (I think) pretty standard:
p = create_pixmap_from_xpm_d(self.mainbox, None, default_icon)
self.icon = GtkPixmap(p[0], p[1])
self.icon.show()
self.mainbox.pack_start(self.icon, FALSE,FALSE,2)
self.mainbox.reorder_child(self.icon, 0)
...
(Here, 'self' is a subclassed GtkToggleButton).
He reports that when it's running on the Debian box but displayed on
the Solaris box, "though I get a square, it's mottled white & black &
yellow & green etc. (The interior is OK (transparent), just the
boundary is peculiar.)"
The problem does not manifest itself when it's displayed on the Debian
box.
Rather confusingly, it is also not manifest in this simple script,
whether the display is remote or local:
--8<----------------------------------------------------------
#! /usr/bin/env python
from gtk import *
w = GtkWindow(WINDOW_TOPLEVEL)
w.connect('delete_event', mainquit)
open_icon = [
"16 16 2 1",
"# c #000000",
". c None",
"................",
"................",
"..############..",
"..#..........#..",
"..#..........#..",
"..#..........#..",
"..#..........#..",
"..#..........#..",
"..#..........#..",
"..#..........#..",
"..#..........#..",
"..#..........#..",
"..#..........#..",
"..############..",
"................",
"................"
]
p = create_pixmap_from_xpm_d(w, None, open_icon)
icon = GtkPixmap(p[0], p[1])
icon.show()
w.add(icon)
w.show()
w.set_default_size(200,200)
mainloop()
--8<----------------------------------------------------------
I'm short on ideas, so I'd be extremely grateful to anyone who could
offer any suggestions as to why this might be happening. I don't have
the hardware to reproduce it, but Brian is also lurking here and will
be able to test out any theories (however far-fetched!).
Thanks,
-Rob
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