Hello Ian
Thank's for your reply.
Would you send the part of your code that is not working? If you use
Filler(my_widget, 'middle', 10) then my_widget should be only 10 rows
high and the rest of the space will be blank. If you want to use that
extra space for something then the ListBox needs to behave like a flow
widget, so you could use BoxAdapter(my_widget, 10) instead.
I solved this! It was a stupid error, I was trying to make a list of a
list!!!!
The problem here is that ListBox objects are always selectable, since
you might want to scroll through unselectable content. If you don't
mind not being able to scroll that one ListBox you can make it
unselectable by subclassing ListBox:
class UnselectableListBox(urwid.ListBox):
_selectable = False
It work perfectly [if you did not know ;)]
The third point I also understood. But now I really need some help. As
you can see from my attached code (sorry if it not clean, but I am
really new on this python stuff), I create a class CUPSconsole where I
created two empty (actually with one empty element) listboxes. I was
expecting (again sorry if i going to say something really stupid) that
when I call "update_readings()" function the listbox contents should be
updated. But nothing happens. What am I doing wrong? What have I missed?
Thanks for all the trouble Ian, and for such nice package.
Pedro
import urwid
import urwid.raw_display
from urwid.raw_display import Screen
import string,os
dumy=0
finishedlist = ["Column not-selected"]
queuedlist = ["Column Selectable" ]*10
class UnselectableListBox(urwid.ListBox):
_selectable = False
class SelText(urwid.Text):
"""
A selectable text widget. See urwid.Text.
"""
def selectable(self):
"""
Make widget selectable.
"""
return True
def keypress(self, size, key):
"""
Don't handle any keys.
"""
return key
class NotSelText(urwid.Text):
"""
A selectable text widget. See urwid.Text.
"""
def selectable(self):
"""
Make widget selectable.
"""
return False
class CUPSconsole:
""" CUPS console """
palette = [
('body', 'black', 'light gray', 'standout'),
('header', 'white', 'dark red', 'bold'),
('button normal','light gray', 'dark blue', 'standout'),
('button select','white', 'dark green'),
('button disabled','dark gray','dark blue'),
('edit', 'light gray', 'dark blue'),
('bigtext', 'white', 'black'),
('chars', 'light gray', 'black'),
('title', 'white', 'dark cyan'),
]
def __init__(self):
HEADER = urwid.Pile([
urwid.AttrWrap(urwid.Text(""), 'header'),
urwid.AttrWrap(urwid.Text("HPLaser Printer Queue", 'center'), 'header'),
urwid.AttrWrap(urwid.Text(""), 'header')
])
#dummy Listbox
self.queue_widget = urwid.AttrWrap(urwid.ListBox(#
[urwid.AttrWrap(SelText(""), None, 'edit')]), 'chars')
self.queue_widget.set_focus(0)
self.finish_widget = urwid.AttrWrap(UnselectableListBox(#
[urwid.AttrWrap(NotSelText(" "), None, 'edit')]), 'chars')
ControlColumns = urwid.Columns([self.queue_widget, self.finish_widget], dividechars=2, focus_column=0)
ControlColumns = urwid.Padding(ControlColumns, ('fixed left', 2), ('fixed right', 2))
self.top = urwid.AttrWrap( urwid.Filler(ControlColumns, 'middle', 10) , 'title')
self.top = urwid.Frame( self.top, header=HEADER )
self.update_readings()
def update_readings(self):
reverselist = list(reversed(queuedlist))
self.queue_widget.body = urwid.AttrWrap(urwid.ListBox(#
[urwid.AttrWrap(SelText(dummy), None, 'edit')
for dummy in reverselist]),'chars')
def main(self):
self.ui = Screen()
self.ui.register_palette( self.palette )
self.ui.run_wrapper (self.run )
def run(self):
global dumy
size = self.ui.get_cols_rows()
while True:
self.top.footer = urwid.AttrWrap(urwid.Text("%s"%(dumy)), 'header')
canvas = self.top.render(size, focus=1)
self.ui.draw_screen(size,canvas)
keys = None
while not keys:
keys = self.ui.get_input()
for k in keys:
if "window resize" in keys:
size = self.ui.get_cols_rows()
if k == "s":
return
if urwid.is_mouse_event(k):
event, button, col, row = k
self.ui.mouse_event(dim, event, button, col, row, focus=True)
else:
self.top.keypress(size, k)
dumy = self.queue_widget.get_focus()[1]
if k == "enter":
pass
if k == "k":
pass
def console():
do_display()
def do_display():
printerdisplay = CUPSconsole()
printerdisplay.main()
if __name__ == "__main__":
console()
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