Viewing file:  support.py (4.48 KB) -rw-r--r--
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import functools
import re
import tkinter
import unittest
class AbstractTkTest:
@classmethod
def setUpClass(cls):
cls._old_support_default_root = tkinter._support_default_root
destroy_default_root()
tkinter.NoDefaultRoot()
cls.root = tkinter.Tk()
cls.wantobjects = cls.root.wantobjects()
# De-maximize main window.
# Some window managers can maximize new windows.
cls.root.wm_state('normal')
try:
cls.root.wm_attributes('-zoomed', False)
except tkinter.TclError:
pass
@classmethod
def tearDownClass(cls):
cls.root.update_idletasks()
cls.root.destroy()
del cls.root
tkinter._default_root = None
tkinter._support_default_root = cls._old_support_default_root
def setUp(self):
self.root.deiconify()
def tearDown(self):
for w in self.root.winfo_children():
w.destroy()
self.root.withdraw()
class AbstractDefaultRootTest:
def setUp(self):
self._old_support_default_root = tkinter._support_default_root
destroy_default_root()
tkinter._support_default_root = True
self.wantobjects = tkinter.wantobjects
def tearDown(self):
destroy_default_root()
tkinter._default_root = None
tkinter._support_default_root = self._old_support_default_root
def _test_widget(self, constructor):
# no master passing
x = constructor()
self.assertIsNotNone(tkinter._default_root)
self.assertIs(x.master, tkinter._default_root)
self.assertIs(x.tk, tkinter._default_root.tk)
x.destroy()
destroy_default_root()
tkinter.NoDefaultRoot()
self.assertRaises(RuntimeError, constructor)
self.assertFalse(hasattr(tkinter, '_default_root'))
def destroy_default_root():
if getattr(tkinter, '_default_root', None):
tkinter._default_root.update_idletasks()
tkinter._default_root.destroy()
tkinter._default_root = None
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):
if len(version) <= 2:
return unittest.skipUnless(tcl_version >= version,
'requires Tcl version >= ' + '.'.join(map(str, version)))
def deco(test):
@functools.wraps(test)
def newtest(self):
if get_tk_patchlevel() < version:
self.skipTest('requires Tcl version >= ' +
'.'.join(map(str, version)))
test(self)
return newtest
return deco
_tk_patchlevel = None
def get_tk_patchlevel():
global _tk_patchlevel
if _tk_patchlevel is None:
tcl = tkinter.Tcl()
patchlevel = tcl.call('info', 'patchlevel')
m = re.fullmatch(r'(\d+)\.(\d+)([ab.])(\d+)', patchlevel)
major, minor, releaselevel, serial = m.groups()
major, minor, serial = int(major), int(minor), int(serial)
releaselevel = {'a': 'alpha', 'b': 'beta', '.': 'final'}[releaselevel]
if releaselevel == 'final':
_tk_patchlevel = major, minor, serial, releaselevel, 0
else:
_tk_patchlevel = major, minor, 0, releaselevel, serial
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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