def test_draw(self):
pen = FreeTypePen(None)
box(pen)
width, height = 500, 500
buf1, _ = pen.buffer(width=width, height=height)
buf2 = b"\xff" * width * height
self.assertEqual(buf1, buf2)
def test_cubic_vs_quadratic(self):
pen1, pen2 = FreeTypePen(None), FreeTypePen(None)
draw_cubic(pen1)
draw_quadratic(pen2)
width, height = 500, 500
buf1, _ = pen1.buffer(width=width, height=height)
buf2, _ = pen2.buffer(width=width, height=height)
self.assertEqual(len(buf1), len(buf2))
self.assertGreater(psnr(buf1, buf2), PSNR_THRESHOLD)
def test_skew(self):
pen = FreeTypePen(None)
box(pen)
t = Scale(0.05, 0.05).skew(math.pi / 4.0).translate(1234, 5678)
width, height = None, None
buf1, size1 = pen.buffer(width=width, height=height, transform=t)
buf2, size2 = load_pgm(os.path.join(DATA_DIR, "test_skew.pgm"))
self.assertEqual(len(buf1), len(buf2))
self.assertEqual(size1, size2)
self.assertGreater(psnr(buf1, buf2), PSNR_THRESHOLD)
def test_contain(self):
pen = FreeTypePen(None)
star(pen)
t = Scale(0.05, 0.05)
width, height = 0, 0
buf1, size1 = pen.buffer(width=width,
height=height,
transform=t,
contain=True)
buf2, size2 = load_pgm(os.path.join(DATA_DIR,
"test_non_zero_fill.pgm"))
self.assertEqual(len(buf1), len(buf2))
self.assertEqual(size1, size2)
self.assertGreater(psnr(buf1, buf2), PSNR_THRESHOLD)
def test_even_odd_fill(self):
pen = FreeTypePen(None)
star(pen)
t = Scale(0.05, 0.05)
width, height = t.transformPoint((1000, 1000))
t = t.translate(0, 200)
buf1, size1 = pen.buffer(width=width,
height=height,
transform=t,
evenOdd=True)
buf2, size2 = load_pgm(os.path.join(DATA_DIR,
"test_even_odd_fill.pgm"))
self.assertEqual(len(buf1), len(buf2))
self.assertEqual(size1, size2)
self.assertGreater(psnr(buf1, buf2), PSNR_THRESHOLD)
def test_bbox_and_cbox(self):
pen = FreeTypePen(None)
draw_cubic(pen)
self.assertEqual(pen.bbox, (50.0, 0.0, 450.0, 500.0))
self.assertEqual(pen.cbox, (50.0, 0.0, 450.0, 500.0))
def test_empty(self):
pen = FreeTypePen(None)
width, height = 500, 500
buf, size = pen.buffer(width=width, height=height)
self.assertEqual(b"\0" * size[0] * size[1], buf)
def test_zero_size(self):
pen = FreeTypePen(None)
star(pen)
width, height = 0, 0
buf1, size = pen.buffer(width=width,
height=height,
transform=Offset(0, 200),
contain=True)
buf2, _ = pen.buffer(width=1000,
height=1000,
transform=Offset(0, 200),
contain=True)
self.assertEqual(size, (1000, 1000))
self.assertEqual(buf1, buf2)
pen = FreeTypePen(None)
box(pen, offset=(250, 250))
width, height = 0, 0
buf1, size = pen.buffer(width=width, height=height, contain=True)
buf2, _ = pen.buffer(width=500,
height=500,
transform=Offset(0, 0),
contain=True)
self.assertEqual(size, (750, 750))
self.assertEqual(buf1, buf2)
pen = FreeTypePen(None)
box(pen, offset=(-1234, -5678))
width, height = 0, 0
buf1, size = pen.buffer(width=width, height=height, contain=True)
buf2, _ = pen.buffer(width=500,
height=500,
transform=Offset(1234, 5678),
contain=True)
self.assertEqual(size, (500, 500))
self.assertEqual(buf1, buf2)
def test_none_size(self):
pen = FreeTypePen(None)
star(pen)
width, height = None, None
buf1, size = pen.buffer(width=width,
height=height,
transform=Offset(0, 200))
buf2, _ = pen.buffer(width=1000, height=1000, transform=Offset(0, 200))
self.assertEqual(size, (1000, 1000))
self.assertEqual(buf1, buf2)
pen = FreeTypePen(None)
box(pen, offset=(250, 250))
width, height = None, None
buf1, size = pen.buffer(width=width, height=height)
buf2, _ = pen.buffer(width=500,
height=500,
transform=Offset(-250, -250))
self.assertEqual(size, (500, 500))
self.assertEqual(buf1, buf2)
pen = FreeTypePen(None)
box(pen, offset=(-1234, -5678))
width, height = None, None
buf1, size = pen.buffer(width=width, height=height)
buf2, _ = pen.buffer(width=500,
height=500,
transform=Offset(1234, 5678))
self.assertEqual(size, (500, 500))
self.assertEqual(buf1, buf2)