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import unittest
from unittests import wtc
import wx
import os
import warnings
pngFile = os.path.join(os.path.dirname(__file__), 'toucan.png')
#---------------------------------------------------------------------------
class dc_Tests(wtc.WidgetTestCase):
def test_ConstantsExist(self):
wx.CLEAR
wx.XOR
wx.INVERT
wx.OR_REVERSE
wx.AND_REVERSE
wx.COPY
wx.AND
wx.AND_INVERT
wx.NO_OP
wx.NOR
wx.EQUIV
wx.SRC_INVERT
wx.OR_INVERT
wx.NAND
wx.OR
wx.SET
wx.FLOOD_SURFACE
wx.FLOOD_BORDER
wx.MM_TEXT
wx.MM_METRIC
wx.MM_LOMETRIC
wx.MM_TWIPS
wx.MM_POINTS
def test_FontMetrics(self):
fm = wx.FontMetrics()
fm.height
fm.ascent
fm.descent
fm.internalLeading
fm.externalLeading
fm.averageWidth
def test_DCClipper(self):
dc = wx.ClientDC(self.frame)
c = wx.DCClipper(dc, wx.Rect(10,10,25,25))
del c
c = wx.DCClipper(dc, (10,10,25,25))
del c
c = wx.DCClipper(dc, 10,10,25,25)
del c
r = wx.Region(10,10,25,25)
c = wx.DCClipper(dc, r)
del c
def test_DCBrushChanger(self):
dc = wx.ClientDC(self.frame)
c = wx.DCBrushChanger(dc, wx.Brush('blue'))
del c
def test_DCPenChanger(self):
dc = wx.ClientDC(self.frame)
c = wx.DCPenChanger(dc, wx.Pen('blue'))
del c
def test_DCTextColourChanger(self):
dc = wx.ClientDC(self.frame)
c = wx.DCTextColourChanger(dc)
c.Set('blue')
del c
c = wx.DCTextColourChanger(dc, 'blue')
del c
def test_DCFontChanger(self):
dc = wx.ClientDC(self.frame)
font = wx.FFont(12, wx.FONTFAMILY_SWISS)
c = wx.DCFontChanger(dc)
c.Set(font)
del c
c = wx.DCFontChanger(dc, font)
del c
def test_NativeHandle(self):
dc = wx.MemoryDC(wx.Bitmap(10,10))
h = dc.GetHandle()
self.assertTrue(h is not None)
self.assertNotEqual(int(h), 0)
def test_NativeWinHandle(self):
dc = wx.ClientDC(self.frame)
with warnings.catch_warnings():
warnings.simplefilter("error")
with self.assertRaises(wx.wxPyDeprecationWarning):
try:
h = dc.GetHDC()
except NotImplementedError:
pass
def test_NativeGTKHandle(self):
dc = wx.ClientDC(self.frame)
with warnings.catch_warnings():
warnings.simplefilter("error")
with self.assertRaises(wx.wxPyDeprecationWarning):
try:
h = dc.GetGdkDrawable()
except NotImplementedError:
pass
def test_NativeMacHandle(self):
dc = wx.MemoryDC(wx.Bitmap(10,10))
with warnings.catch_warnings():
warnings.simplefilter("error")
with self.assertRaises(wx.wxPyDeprecationWarning):
try:
h = dc.GetCGContext()
except NotImplementedError:
pass
def test_dcTextExtents(self):
dc = wx.ClientDC(self.frame)
size = dc.GetTextExtent('Test String')
assert isinstance(size, wx.Size)
assert size.Get() > (0,0)
mlsize = dc.GetMultiLineTextExtent('Test String\n2nd line')
assert isinstance(mlsize, wx.Size)
assert mlsize.Get() > (0,0)
assert mlsize.Get() > size.Get()
def test_dcFullTextExtents(self):
dc = wx.ClientDC(self.frame)
size = dc.GetFullTextExtent('Test String')
assert isinstance(size, tuple)
assert len(size) == 4
mlsize = dc.GetFullMultiLineTextExtent('Test String\n2nd line')
assert isinstance(mlsize, tuple)
assert len(mlsize) == 3
def test_trickyStuff(self):
# execute some tricky tweaks to make sure they work are as they are supposed to.
dc = wx.ClientDC(self.frame)
bmp = wx.Bitmap(pngFile)
dc.DrawLabel("toucan", bmp, (10,10, 200, 100))
values = dc.GetPartialTextExtents("Hello")
self.assertTrue(type(values) == list)
self.assertTrue(len(values) == 5)
def test_dcPointLists(self):
dc = wx.ClientDC(self.frame)
dc.DrawLines([wx.Point(5,5), wx.Point(25,5), wx.Point(25,25), wx.Point(25,5), wx.Point(5,5)])
dc.DrawLines( [(15,15), (35,15), (35,35), (35,15), (15,15)] )
def test_dcContextManager(self):
import wx.siplib
with wx.ClientDC(self.frame) as dc:
dc.DrawLine(0,0,100,100)
# check ownership
assert wx.siplib.ispyowned(dc)
assert not wx.siplib.isdeleted(dc)
# check the DC's ownership has changed
assert not wx.siplib.ispyowned(dc)
assert wx.siplib.isdeleted(dc)
#---------------------------------------------------------------------------
if __name__ == '__main__':
unittest.main()
|
