Hi, I'm trying to set a customised cursor for a drawing application. I want the
cursor to
reflect the size and color of the selected pen.
pm=gtk.gdk.Pixmap(page.canvas.window,10,10,1)
gc = pm.new_gc(foreground=gtk.gdk.color_parse('black'))
pm.draw_rectangle(gc, True, 0, 0, 9, 9)
mask=gtk.gdk.Pixmap(page.canvas.window,10,10,1)
gc = mask.new_gc(foreground = gtk.gdk.color_parse('white'))
mask.draw_rectangle(gc, False, 0, 0, 9, 9)
cur=gtk.gdk.Cursor(pm, mask, gtk.gdk.color_parse('white'),
gtk.gdk.color_parse('black'), 5, 5)
page.canvas.window.set_cursor(cur)
What I get is a whole lot of random garbage in a square roughly the right size.
If I set the depth
of pm to -1, I get an X error ('BadMatch (invalid parameter attributes)') and
the program crashes.
Could anyone give me some pointers to fix this?
Also, I'm not very clear on the role's of the fg and bg in the Cursor
contructor, the documentation
is not very illuminating:
fg : the unallocated foreground gtk.gdk.Color
bg : the unallocated background gtk.gdk.Color
'unallocated' ??
cheers,
Alexei
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