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import urwid
class CursorPudding(urwid.Widget):
_sizing = frozenset(['flow'])
_selectable = True
def __init__(self):
self.cursor_col = 0
def rows(self, size, focus=False):
return 1
def render(self, size, focus=False):
(maxcol,) = size
num_pudding = maxcol / len("Pudding")
cursor = None
if focus:
cursor = self.get_cursor_coords(size)
return urwid.TextCanvas(["Pudding" * num_pudding], [], cursor, maxcol)
def get_cursor_coords(self, size):
(maxcol,) = size
col = min(self.cursor_col, maxcol - 1)
return col, 0
def keypress(self, size, key):
(maxcol, ) = size
if key == 'left':
col = self.cursor_col - 1
elif key == 'right':
col = self.cursor_col + 1
else:
return key
self.cursor_x = max(0, min(maxcol - 1, col))
self._invalidate()
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