Hi all! I'm working on adding something like a placeholder text to an edit box. (inheriting urwid.Edit). I'm finding it tricky to style the placeholder text, as the edit_text couldn't be styled as of now (?).
I guess if we somehow revert the places of caption and edit_text as specified in the Edit widget, this might be resolved; The caption being placeholder text, simply handled through connect_signal locally.
We could maybe add it as a boolean parameter, something like suffix_caption?
I'm looking forward to opening an issue/PR for the same upon feedback :)
I am having trouble getting the Overlay widget to work. I want to use it to display a single question box and I am using the following code:
text = urwid.Text(prompt)
buttons = [("weight", 1, urwid.Button(x, get_selection, choices.index(x)) for x in choices]
colums = urwid.Columns(buttons)
pile = urwid.Pile([("pack", text), columns])
box = urwid.LineBox(pile)
overlay = urwid.Overlay(box, frame.contents["body"], "center", ("relative", 40), "middle", ("relative", 20))
frame.contents["body"] = overlayHowever, I get an ValueError when urwid is trying to render the buttons in the Columns widget because the Text("<") widget for the button is a flow widget but size argument to its render() method is a two-element tuple. What is the proper way to use Overlay()?
import urwid
selected = 0
def get_selection(*args):
selected = True
def show_overlay(*args):
prompt = "This is a test prompt"
choices = ["OK", "Cancel"]
text = urwid.Text(prompt)
buttons = [("weight", 1, urwid.Button(x, get_selection, choices.index(x)))
for x in choices]
columns = urwid.Columns(buttons)
pile = urwid.Pile([("pack", text), columns])
box = urwid.LineBox(pile)
frame = args[1]
overlay = urwid.Overlay(
box, frame.contents["body"][0], "center", ("relative", 40), "middle", ("relative", 20))
frame.contents["body"] = (overlay, None)
show_button = urwid.Button("show")
main_pile = urwid.Pile([urwid.Text("This is the main body"),
show_button])
filler = urwid.Filler(main_pile)
frame = urwid.Frame(filler)
urwid.connect_signal(show_button, "click", show_overlay, frame)
loop = urwid.MainLoop(frame, unhandled_input=urwid.ExitMainLoop)
loop.run()loop.widget but that doesn't really do what I wanted. I guess what I meant is that I want something line Gnome's Dialog boxes that block the main application while the dialog is up. My guess is that they accomplish this with a separate event loop. Does zulip-terminal's implementation do the main application blocking that I am trying to describe?
Hi all :)
I am a bit lost, trying to get a key press for the following widget.
In all previous widgets I had some kind of walkableList or Edit field, but this one only has "displaying" widgets.
If I press ESC or "b" nothing happens.
If I add an urwid.Edit in the msg_pile it works (pressing "b" adds a line).
import urwid
class TestWidget(urwid.WidgetWrap):
def __init__(self):
msg_pile = urwid.Pile([urwid.Text("Connecting to emonio...")])
content = urwid.BoxAdapter(urwid.LineBox(urwid.Filler(msg_pile, height="flow", valign="top"), title="Preparing"), 19)
key_hints = urwid.Text("ESC - quit | b - back", align="center")
self._w = urwid.Pile([content, key_hints])
self.run()
def run(self):
self.add_new_line("Adding a test line...")
def keypress(self, size, key):
if key == "esc":
raise urwid.ExitMainLoop()
elif key == "b":
self.add_new_line("Added a line via keypress()")
def add_new_line(self, text):
self._w.widget_list[0].original_widget.original_widget.original_widget.widget_list.append(urwid.Text(text))
widget = urwid.Padding(urwid.Filler(TestWidget(), valign="top", height="flow", top=3), align="center", width=47)
loop = urwid.MainLoop(widget)
loop.run()I am thinking that it is because it has no widget, which reacts to any key, so no key event is passed all the way up to my TestWidget.
PS: I am happy for each hint/ suggestion for improvement, as I am relatively new to urwid and still learning ;)
r_button = urwid.RadioButton(g_radio_button_group, 'Hi', False, on_state_change=on_mode_button)
locn_list_options = urwid.GridFlow(g_radio_button_group, 15, 3, 1, 'left')
substitute_screen_pile = urwid.Pile([locn_list_options])
7 replies
Hi all :)
I am a bit lost, trying to get a key press for the following widget.
In all previous widgets I had some kind of walkableList or Edit field, but this one only has "displaying" widgets.
If I press ESC or "b" nothing happens.
If I add anurwid.Editin themsg_pileit works (pressing "b" adds a line).
To answer my own question, I once again read the docs.
This time I understood, that _selectable needs to be true, so that a keypress will be handled.
So I set _selectable = True to for my widget and now it works :)
I get an error AttributeError: 'ListBox' object has no attribute 'rows' and not sure why. Cannot seem to figure out. To run this script enter any value on the input field prompt.
prints in a urwid application for debugging purposes? I want the gui thread to halt when I call print in another thread otherwise I don't actually see the prints
1 reply
