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import unittest
from unittests import wtc
import wx
import six
from six import BytesIO as FileLikeObject
import os
pngFile = os.path.join(os.path.dirname(__file__), 'toucan.png')
#---------------------------------------------------------------------------
def makeBuf(w, h, bpp=1, init=0):
"Make a simple buffer for testing with"
buf = bytearray([init] * (w*h*bpp))
return buf
class image_Tests(wtc.WidgetTestCase):
def test_imageCtor1(self):
img = wx.Image()
self.assertTrue(not img.IsOk())
img.Create(100,100)
self.assertTrue(img.IsOk())
def test_imageCtor2(self):
img = wx.Image(100,100)
self.assertTrue(img.IsOk())
def test_imageCtor3(self):
img = wx.Image(wx.Size(100,100))
self.assertTrue(img.IsOk())
img = wx.Image((100,100))
self.assertTrue(img.IsOk())
def test_imageCtor4(self):
w = h = 10
buf = makeBuf(w,h,3)
img = wx.Image(w, h, buf)
self.assertTrue(img.IsOk())
def test_imageCtor5(self):
w = h = 10
buf = makeBuf(w,h,3)
alpha = makeBuf(w,h)
img = wx.Image(w, h, buf, alpha)
self.assertTrue(img.IsOk())
def test_imageCtor4b(self):
w = h = 10
buf = makeBuf(w,h,3)
img = wx.Image((w, h), buf)
self.assertTrue(img.IsOk())
def test_imageCtor4c(self):
w = h = 10
buf = makeBuf(w,h,3)
with self.assertRaises(ValueError):
# should be an exception here because the buffer is the wrong size
img = wx.Image((w, h+1), buf)
def test_imageCtor5b(self):
w = h = 10
buf = makeBuf(w,h,3)
alpha = makeBuf(w,h)
img = wx.Image((w, h), buf, alpha)
self.assertTrue(img.IsOk())
def test_imageCtor6(self):
img = wx.Image(pngFile, wx.BITMAP_TYPE_PNG)
self.assertTrue(img.IsOk())
def test_imageCtor7(self):
img = wx.Image(pngFile, 'image/png')
self.assertTrue(img.IsOk())
def test_imageCtor8(self):
with open(pngFile, 'rb') as f:
data = f.read()
stream = FileLikeObject(data)
img = wx.Image(stream, wx.BITMAP_TYPE_PNG)
self.assertTrue(img.IsOk())
def test_imageCtor9(self):
with open(pngFile, 'rb') as f:
data = f.read()
stream = FileLikeObject(data)
img = wx.Image(stream, 'image/png')
self.assertTrue(img.IsOk())
def test_imageSetData1(self):
w = h = 10
img = wx.Image(w,h)
buf = makeBuf(w,h,3, init=2)
img.SetData(buf)
self.assertTrue(img.IsOk())
self.assertTrue(img.GetRed(1,1) == 2)
def test_imageSetData2(self):
w = h = 10
img = wx.Image(1,1)
buf = makeBuf(w,h,3, init=2)
img.SetData(buf, w, h)
self.assertTrue(img.IsOk())
self.assertTrue(img.GetRed(1,1) == 2)
def test_imageSetAlpha1(self):
w = h = 10
img = wx.Image(w,h)
buf = makeBuf(w,h, init=2)
img.SetAlpha(buf)
self.assertTrue(img.IsOk())
self.assertTrue(img.GetRed(1,1) == 0)
self.assertTrue(img.GetAlpha(1,1) == 2)
def test_imageGetData(self):
img = wx.Image(pngFile)
data = img.GetData()
self.assertEqual(len(data), img.Width * img.Height * 3)
self.assertTrue(isinstance(data, bytearray))
def test_imageGetAlpha(self):
img = wx.Image(pngFile)
data = img.GetAlpha()
self.assertEqual(len(data), img.Width * img.Height)
self.assertTrue(isinstance(data, bytearray))
def test_imageGetDataBuffer(self):
w = h = 10
img = wx.Image(w, h)
self.assertTrue(img.IsOk())
data = img.GetDataBuffer()
self.assertTrue(isinstance(data, memoryview))
if six.PY2:
data[0] = b'1'
data[1] = b'2'
data[2] = b'3'
self.assertEqual(ord('1'), img.GetRed(0,0))
self.assertEqual(ord('2'), img.GetGreen(0,0))
self.assertEqual(ord('3'), img.GetBlue(0,0))
else:
data[0] = 1
data[1] = 2
data[2] = 3
self.assertEqual(1, img.GetRed(0,0))
self.assertEqual(2, img.GetGreen(0,0))
self.assertEqual(3, img.GetBlue(0,0))
def test_imageGetAlphaDataBuffer(self):
w = h = 10
img = wx.Image(w, h)
img.InitAlpha()
self.assertTrue(img.IsOk())
data = img.GetAlphaBuffer()
self.assertTrue(isinstance(data, memoryview))
if six.PY2:
data[0] = b'1'
data[1] = b'2'
data[2] = b'3'
self.assertEqual(ord('1'), img.GetAlpha(0,0))
self.assertEqual(ord('2'), img.GetAlpha(1,0))
self.assertEqual(ord('3'), img.GetAlpha(2,0))
else:
data[0] = 1
data[1] = 2
data[2] = 3
self.assertEqual(1, img.GetAlpha(0,0))
self.assertEqual(2, img.GetAlpha(1,0))
self.assertEqual(3, img.GetAlpha(2,0))
def test_imageSetDataBuffer1(self):
w = h = 10
img = wx.Image(w,h)
buf = makeBuf(w,h,3)
img.SetDataBuffer(buf)
buf[0] = 1
buf[1] = 2
buf[2] = 3
self.assertEqual(1, img.GetRed(0,0))
self.assertEqual(2, img.GetGreen(0,0))
self.assertEqual(3, img.GetBlue(0,0))
def test_imageSetDataBuffer2(self):
w = h = 10
img = wx.Image(1,1)
buf = makeBuf(w,h,3)
img.SetDataBuffer(buf, w, h)
buf[0] = 1
buf[1] = 2
buf[2] = 3
self.assertEqual(1, img.GetRed(0,0))
self.assertEqual(2, img.GetGreen(0,0))
self.assertEqual(3, img.GetBlue(0,0))
def test_imageSetAlphaBuffer(self):
w = h = 10
img = wx.Image(w,h)
buf = makeBuf(w,h)
img.SetAlphaBuffer(buf)
buf[0] = 1
buf[1] = 2
buf[2] = 3
self.assertEqual(1, img.GetAlpha(0,0))
self.assertEqual(2, img.GetAlpha(1,0))
self.assertEqual(3, img.GetAlpha(2,0))
def test_imageNestedClasses(self):
rgb = wx.Image.RGBValue(1,2,3)
self.assertEqual(rgb.red, 1)
self.assertEqual(rgb.green, 2)
self.assertEqual(rgb.blue, 3)
rgb.red = 4
rgb.green = 5
rgb.blue = 6
hsv = wx.Image.HSVValue(1.1, 1.2, 1.3)
self.assertEqual(hsv.hue, 1.1)
self.assertEqual(hsv.saturation, 1.2)
self.assertEqual(hsv.value, 1.3)
hsv.hue = 2.1
hsv.saturation = 2.2
hsv.value = 2.3
def test_imageRGBHSV(self):
rgb = wx.Image.RGBValue(1,2,3)
hsv = wx.Image.RGBtoHSV(rgb)
rgb = wx.Image.HSVtoRGB(hsv)
self.assertEqual(rgb.red, 1)
self.assertEqual(rgb.green, 2)
self.assertEqual(rgb.blue, 3)
def test_imageProperties(self):
img = wx.Image(pngFile)
self.assertTrue(img.IsOk())
img.Width
img.Height
img.MaskRed
img.MaskGreen
img.MaskBlue
img.Type
def test_imageMethodChain(self):
img = wx.Image(100,100).Rescale(75,75).Resize((100,100), (0,0), 40,60,80)
self.assertTrue(img.IsOk())
def test_imageOtherStuff(self):
img = wx.Image(pngFile)
self.assertTrue(img.IsOk())
r, g, b = img.FindFirstUnusedColour()
r, g, b = img.GetOrFindMaskColour()
def test_imageHandlerDerivation(self):
class TestImageHandler(wx.ImageHandler):
def __init__(self):
wx.ImageHandler.__init__(self)
self.Name = "Foo File"
self.Extension = "foo"
self.MimeType = 'image/foo'
self.Type = wx.BITMAP_TYPE_JPEG
def DoCanRead(self, stream):
return True
imghndlr = TestImageHandler()
wx.Image.AddHandler(imghndlr)
def test_imageHandlerStandardDerivations(self):
# checks that all of the standard wx derivations are available.
wx.GIFHandler()
wx.IFFHandler()
wx.JPEGHandler()
wx.PCXHandler()
wx.PNGHandler()
wx.PNMHandler()
wx.TGAHandler()
wx.TIFFHandler()
wx.XPMHandler()
def test_imageHandlerStandardDerivationsDerivation(self):
for cls in (wx.GIFHandler, wx.IFFHandler, wx.JPEGHandler,
wx.PCXHandler, wx.PNGHandler, wx.PNMHandler,
wx.TGAHandler, wx.TIFFHandler,wx.XPMHandler):
class TestImageHandler(cls):
def __init__(self):
cls.__init__(self)
ext = cls.__name__.replace("Handler", "")
self.Name = "%s File" % ext
self.Extension = ext
self.MimeType = 'image/ext'
self.Type = getattr(wx, "BITMAP_TYPE_%s" % ext)
def DoCanRead(self, stream):
return True
imghndlr = TestImageHandler()
wx.Image.AddHandler(imghndlr)
#---------------------------------------------------------------------------
if __name__ == '__main__':
unittest.main()
|
