def test_alpha_composite(self):
# https://stackoverflow.com/questions/3374878
# Arrange
from PIL2 import ImageDraw
expected_colors = sorted([
(1122, (128, 127, 0, 255)),
(1089, (0, 255, 0, 255)),
(3300, (255, 0, 0, 255)),
(1156, (170, 85, 0, 192)),
(1122, (0, 255, 0, 128)),
(1122, (255, 0, 0, 128)),
(1089, (0, 255, 0, 0))])
dst = Image.new('RGBA', size=(100, 100), color=(0, 255, 0, 255))
draw = ImageDraw.Draw(dst)
draw.rectangle((0, 33, 100, 66), fill=(0, 255, 0, 128))
draw.rectangle((0, 67, 100, 100), fill=(0, 255, 0, 0))
src = Image.new('RGBA', size=(100, 100), color=(255, 0, 0, 255))
draw = ImageDraw.Draw(src)
draw.rectangle((33, 0, 66, 100), fill=(255, 0, 0, 128))
draw.rectangle((67, 0, 100, 100), fill=(255, 0, 0, 0))
# Act
img = Image.alpha_composite(dst, src)
# Assert
img_colors = sorted(img.getcolors())
self.assertEqual(img_colors, expected_colors)
def test_similar(self):
text = 'EmbeddedBitmap'
font_outline = ImageFont.truetype(font='Tests/fonts/DejaVuSans.ttf',
size=24)
font_bitmap = ImageFont.truetype(
font='Tests/fonts/DejaVuSans-bitmap.ttf', size=24)
size_outline = font_outline.getsize(text)
size_bitmap = font_bitmap.getsize(text)
size_final = (max(size_outline[0],
size_bitmap[0]), max(size_outline[1],
size_bitmap[1]))
im_bitmap = Image.new('RGB', size_final, (255, 255, 255))
im_outline = im_bitmap.copy()
draw_bitmap = ImageDraw.Draw(im_bitmap)
draw_outline = ImageDraw.Draw(im_outline)
# Metrics are different on the bitmap and ttf fonts,
# more so on some platforms and versions of freetype than others.
# Mac has a 1px difference, linux doesn't.
draw_bitmap.text((0, size_final[1] - size_bitmap[1]),
text,
fill=(0, 0, 0),
font=font_bitmap)
draw_outline.text((0, size_final[1] - size_outline[1]),
text,
fill=(0, 0, 0),
font=font_outline)
self.assert_image_similar(im_bitmap, im_outline, 20)
def test_floodfill(self):
# Arrange
im = Image.new("RGB", (W, H))
draw = ImageDraw.Draw(im)
draw.rectangle(BBOX2, outline="yellow", fill="green")
centre_point = (int(W / 2), int(H / 2))
red = ImageColor.getrgb("red")
im_floodfill = Image.open("Tests/images/imagedraw_floodfill.png")
# Act
ImageDraw.floodfill(im, centre_point, red)
# Assert
self.assert_image_equal(im, im_floodfill)
# Test that using the same colour does not change the image
ImageDraw.floodfill(im, centre_point, red)
self.assert_image_equal(im, im_floodfill)
# Test that filling outside the image does not change the image
ImageDraw.floodfill(im, (W, H), red)
self.assert_image_equal(im, im_floodfill)
# Test filling at the edge of an image
im = Image.new("RGB", (1, 1))
ImageDraw.floodfill(im, (0, 0), red)
self.assert_image_equal(im, Image.new("RGB", (1, 1), red))
def _test_high_characters(self, message):
tempname = self.save_font()
font = ImageFont.load(tempname)
im = Image.new("L", (750, 30), "white")
draw = ImageDraw.Draw(im)
draw.text((0, 0), message, "black", font=font)
with Image.open('Tests/images/high_ascii_chars.png') as target:
self.assert_image_similar(im, target, 0)
def test_draw(self):
tempname = self.save_font()
font = ImageFont.load(tempname)
im = Image.new("L", (130, 30), "white")
draw = ImageDraw.Draw(im)
draw.text((0, 0), message, 'black', font=font)
with Image.open('Tests/images/test_draw_pbm_target.png') as target:
self.assert_image_similar(im, target, 0)
def test_multiline_width(self):
ttf = self.get_font()
im = Image.new(mode='RGB', size=(300, 100))
draw = ImageDraw.Draw(im)
self.assertEqual(
draw.textsize("longest line", font=ttf)[0],
draw.multiline_textsize("longest line\nline", font=ttf)[0])
def test_render_empty(self):
# issue 2666
font = self.get_font()
im = Image.new(mode='RGB', size=(300, 100))
target = im.copy()
draw = ImageDraw.Draw(im)
# should not crash here.
draw.text((10, 10), '', font=font)
self.assert_image_equal(im, target)
def test_sanity(self):
im = hopper("RGB").copy()
draw = ImageDraw.ImageDraw(im)
draw = ImageDraw.Draw(im)
draw.ellipse(list(range(4)))
draw.line(list(range(10)))
draw.polygon(list(range(100)))
draw.rectangle(list(range(4)))
def test_unknown_align(self):
im = Image.new(mode='RGB', size=(300, 100))
draw = ImageDraw.Draw(im)
ttf = self.get_font()
# Act/Assert
self.assertRaises(ValueError,
draw.multiline_text, (0, 0),
TEST_TEXT,
font=ttf,
align="unknown")
def helper_ellipse(self, mode, bbox):
# Arrange
im = Image.new(mode, (W, H))
draw = ImageDraw.Draw(im)
expected = "Tests/images/imagedraw_ellipse_{}.png".format(mode)
# Act
draw.ellipse(bbox, fill="green", outline="blue")
# Assert
self.assert_image_similar(im, Image.open(expected), 1)
def helper_chord(self, mode, bbox, start, end):
# Arrange
im = Image.new(mode, (W, H))
draw = ImageDraw.Draw(im)
expected = "Tests/images/imagedraw_chord_{}.png".format(mode)
# Act
draw.chord(bbox, start, end, fill="red", outline="yellow")
# Assert
self.assert_image_similar(im, Image.open(expected), 1)
def test_ellipse_edge(self):
# Arrange
im = Image.new("RGB", (W, H))
draw = ImageDraw.Draw(im)
# Act
draw.ellipse(((0, 0), (W - 1, H)), fill="white")
# Assert
self.assert_image_similar(
im, Image.open("Tests/images/imagedraw_ellipse_edge.png"), 1)
def test_text_direction_rtl(self):
ttf = ImageFont.truetype(FONT_PATH, FONT_SIZE)
im = Image.new(mode='RGB', size=(300, 100))
draw = ImageDraw.Draw(im)
draw.text((0, 0), 'English عربي', font=ttf, fill=500, direction='rtl')
target = 'Tests/images/test_direction_rtl.png'
target_img = Image.open(target)
self.assert_image_similar(im, target_img, .5)
def helper_pieslice(self, bbox, start, end):
# Arrange
im = Image.new("RGB", (W, H))
draw = ImageDraw.Draw(im)
# Act
draw.pieslice(bbox, start, end, fill="white", outline="blue")
# Assert
self.assert_image_similar(
im, Image.open("Tests/images/imagedraw_pieslice.png"), 1)
def create_base_image_draw(self,
size,
mode=DEFAULT_MODE,
background1=WHITE,
background2=GRAY):
img = Image.new(mode, size, background1)
for x in range(0, size[0]):
for y in range(0, size[1]):
if (x + y) % 2 == 0:
img.putpixel((x, y), background2)
return (img, ImageDraw.Draw(img))
def helper_point(self, points):
# Arrange
im = Image.new("RGB", (W, H))
draw = ImageDraw.Draw(im)
# Act
draw.point(points, fill="yellow")
# Assert
self.assert_image_equal(im,
Image.open("Tests/images/imagedraw_point.png"))
def helper_polygon(self, points):
# Arrange
im = Image.new("RGB", (W, H))
draw = ImageDraw.Draw(im)
# Act
draw.polygon(points, fill="red", outline="blue")
# Assert
self.assert_image_equal(
im, Image.open("Tests/images/imagedraw_polygon.png"))
def helper_rectangle(self, bbox):
# Arrange
im = Image.new("RGB", (W, H))
draw = ImageDraw.Draw(im)
# Act
draw.rectangle(bbox, fill="black", outline="green")
# Assert
self.assert_image_equal(
im, Image.open("Tests/images/imagedraw_rectangle.png"))
def test_complex_unicode_text(self):
ttf = ImageFont.truetype(FONT_PATH, FONT_SIZE)
im = Image.new(mode='RGB', size=(300, 100))
draw = ImageDraw.Draw(im)
draw.text((0, 0), 'السلام عليكم', font=ttf, fill=500)
target = 'Tests/images/test_complex_unicode_text.png'
target_img = Image.open(target)
self.assert_image_similar(im, target_img, .5)
def test_reduce(self):
test_color = 254
for size in range(400000, 400010, 2):
i = Image.new('L', (size, 1), 0)
draw = ImageDraw.Draw(i)
draw.rectangle((0, 0, i.size[0] // 2 - 1, 0), test_color)
px = i.resize((5, i.size[1]), Image.BICUBIC).load()
if px[2, 0] != test_color // 2:
self.assertEqual(test_color // 2, px[2, 0])
def test_kerning_features(self):
ttf = ImageFont.truetype(FONT_PATH, FONT_SIZE)
im = Image.new(mode='RGB', size=(300, 100))
draw = ImageDraw.Draw(im)
draw.text((0, 0), 'TeToAV', font=ttf, fill=500, features=['-kern'])
target = 'Tests/images/test_kerning_features.png'
target_img = Image.open(target)
self.assert_image_similar(im, target_img, .5)
def test_textsize_empty_string(self):
# https://github.com/python-pillow/Pillow2/issues/2783
# Arrange
im = Image.new("RGB", (W, H))
draw = ImageDraw.Draw(im)
# Act
# Should not cause 'SystemError: <built-in method getsize of
# ImagingFont object at 0x...> returned NULL without setting an error'
draw.textsize("")
draw.textsize("\n")
draw.textsize("test\n")
def test_y_offset(self):
ttf = ImageFont.truetype("Tests/fonts/NotoNastaliqUrdu-Regular.ttf",
FONT_SIZE)
im = Image.new(mode='RGB', size=(300, 100))
draw = ImageDraw.Draw(im)
draw.text((0, 0), 'العالم العربي', font=ttf, fill=500)
target = 'Tests/images/test_y_offset.png'
target_img = Image.open(target)
self.assert_image_similar(im, target_img, 1.7)
def helper_arc(self, bbox, start, end):
# Arrange
im = Image.new("RGB", (W, H))
draw = ImageDraw.Draw(im)
# Act
draw.arc(bbox, start, end)
# Assert
self.assert_image_similar(im,
Image.open("Tests/images/imagedraw_arc.png"),
1)
def test_bitmap(self):
# Arrange
small = Image.open("Tests/images/pil123rgba.png").resize((50, 50))
im = Image.new("RGB", (W, H))
draw = ImageDraw.Draw(im)
# Act
draw.bitmap((10, 10), small)
# Assert
self.assert_image_equal(
im, Image.open("Tests/images/imagedraw_bitmap.png"))
def _render(self, font):
txt = "Hello World!"
ttf = ImageFont.truetype(font,
FONT_SIZE,
layout_engine=self.LAYOUT_ENGINE)
ttf.getsize(txt)
img = Image.new("RGB", (256, 64), "white")
d = ImageDraw.Draw(img)
d.text((10, 10), txt, font=ttf, fill='black')
return img
def test_multiline_spacing(self):
ttf = self.get_font()
im = Image.new(mode='RGB', size=(300, 100))
draw = ImageDraw.Draw(im)
draw.multiline_text((0, 0), TEST_TEXT, font=ttf, spacing=10)
target = 'Tests/images/multiline_text_spacing.png'
target_img = Image.open(target)
# Epsilon ~.5 fails with FreeType 2.7
self.assert_image_similar(im, target_img, self.metrics['multiline'])
def test_line_joint(self):
im = Image.new("RGB", (500, 325))
draw = ImageDraw.Draw(im)
expected = "Tests/images/imagedraw_line_joint_curve.png"
# Act
xy = [(400, 280), (380, 280), (450, 280), (440, 120), (350, 200),
(310, 280), (300, 280), (250, 280), (250, 200), (150, 200),
(150, 260), (50, 200), (150, 50), (250, 100)]
draw.line(xy, GRAY, 50, "curve")
# Assert
self.assert_image_similar(im, Image.open(expected), 3)
def test_ligature_features(self):
ttf = ImageFont.truetype(FONT_PATH, FONT_SIZE)
im = Image.new(mode='RGB', size=(300, 100))
draw = ImageDraw.Draw(im)
draw.text((0, 0), 'filling', font=ttf, fill=500, features=['-liga'])
target = 'Tests/images/test_ligature_features.png'
target_img = Image.open(target)
self.assert_image_similar(im, target_img, .5)
liga_size = ttf.getsize('fi', features=['-liga'])
self.assertEqual(liga_size, (13, 19))
def test_arc_end_le_start(self):
# Arrange
im = Image.new("RGB", (W, H))
draw = ImageDraw.Draw(im)
start = 270.5
end = 0
# Act
draw.arc(BBOX1, start=start, end=end)
# Assert
self.assert_image_equal(
im, Image.open("Tests/images/imagedraw_arc_end_le_start.png"))
