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import unittest
import Tkinter
def get_tk_root():
try:
root = Tkinter._default_root
except AttributeError:
# it is possible to disable default root in Tkinter, although
# I haven't seen people doing it (but apparently someone did it
# here).
root = None
if root is None:
# create a new master only if there isn't one already
root = Tkinter.Tk()
return root
def root_deiconify():
root = get_tk_root()
root.deiconify()
def root_withdraw():
root = get_tk_root()
root.withdraw()
def simulate_mouse_click(widget, x, y):
"""Generate proper events to click at the x, y position (tries to act
like an X server)."""
widget.event_generate('<Enter>', x=0, y=0)
widget.event_generate('<Motion>', x=x, y=y)
widget.event_generate('<ButtonPress-1>', x=x, y=y)
widget.event_generate('<ButtonRelease-1>', x=x, y=y)
import _tkinter
tcl_version = tuple(map(int, _tkinter.TCL_VERSION.split('.')))
def requires_tcl(*version):
return unittest.skipUnless(tcl_version >= version,
'requires Tcl version >= ' + '.'.join(map(str, version)))
_tk_patchlevel = None
def get_tk_patchlevel():
global _tk_patchlevel
if _tk_patchlevel is None:
tcl = Tkinter.Tcl()
patchlevel = []
for x in tcl.call('info', 'patchlevel').split('.'):
try:
x = int(x, 10)
except ValueError:
x = -1
patchlevel.append(x)
_tk_patchlevel = tuple(patchlevel)
return _tk_patchlevel
units = {
'c': 72 / 2.54, # centimeters
'i': 72, # inches
'm': 72 / 25.4, # millimeters
'p': 1, # points
}
def pixels_conv(value):
return float(value[:-1]) * units[value[-1:]]
def tcl_obj_eq(actual, expected):
if actual == expected:
return True
if isinstance(actual, _tkinter.Tcl_Obj):
if isinstance(expected, str):
return str(actual) == expected
if isinstance(actual, tuple):
if isinstance(expected, tuple):
return (len(actual) == len(expected) and
all(tcl_obj_eq(act, exp)
for act, exp in zip(actual, expected)))
return False
def widget_eq(actual, expected):
if actual == expected:
return True
if isinstance(actual, (str, Tkinter.Widget)):
if isinstance(expected, (str, Tkinter.Widget)):
return str(actual) == str(expected)
return False
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