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913 lines
28 KiB
Python
913 lines
28 KiB
Python
import os.path
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import unittest
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from PIL import Image, ImageColor, ImageDraw, ImageFont, features
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from .helper import PillowTestCase, assert_image_equal, assert_image_similar, hopper
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BLACK = (0, 0, 0)
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WHITE = (255, 255, 255)
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GRAY = (190, 190, 190)
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DEFAULT_MODE = "RGB"
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IMAGES_PATH = os.path.join("Tests", "images", "imagedraw")
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# Image size
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W, H = 100, 100
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# Bounding box points
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X0 = int(W / 4)
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X1 = int(X0 * 3)
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Y0 = int(H / 4)
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Y1 = int(X0 * 3)
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# Two kinds of bounding box
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BBOX1 = [(X0, Y0), (X1, Y1)]
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BBOX2 = [X0, Y0, X1, Y1]
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# Two kinds of coordinate sequences
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POINTS1 = [(10, 10), (20, 40), (30, 30)]
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POINTS2 = [10, 10, 20, 40, 30, 30]
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KITE_POINTS = [(10, 50), (70, 10), (90, 50), (70, 90), (10, 50)]
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HAS_FREETYPE = features.check("freetype2")
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class TestImageDraw(PillowTestCase):
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def test_sanity(self):
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im = hopper("RGB").copy()
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draw = ImageDraw.ImageDraw(im)
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draw = ImageDraw.Draw(im)
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draw.ellipse(list(range(4)))
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draw.line(list(range(10)))
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draw.polygon(list(range(100)))
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draw.rectangle(list(range(4)))
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def test_valueerror(self):
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with Image.open("Tests/images/chi.gif") as im:
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draw = ImageDraw.Draw(im)
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draw.line((0, 0), fill=(0, 0, 0))
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def test_mode_mismatch(self):
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im = hopper("RGB").copy()
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self.assertRaises(ValueError, ImageDraw.ImageDraw, im, mode="L")
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def helper_arc(self, bbox, start, end):
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# Arrange
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im = Image.new("RGB", (W, H))
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draw = ImageDraw.Draw(im)
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# Act
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draw.arc(bbox, start, end)
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# Assert
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assert_image_similar(im, Image.open("Tests/images/imagedraw_arc.png"), 1)
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def test_arc1(self):
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self.helper_arc(BBOX1, 0, 180)
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self.helper_arc(BBOX1, 0.5, 180.4)
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def test_arc2(self):
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self.helper_arc(BBOX2, 0, 180)
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self.helper_arc(BBOX2, 0.5, 180.4)
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def test_arc_end_le_start(self):
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# Arrange
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im = Image.new("RGB", (W, H))
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draw = ImageDraw.Draw(im)
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start = 270.5
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end = 0
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# Act
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draw.arc(BBOX1, start=start, end=end)
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# Assert
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assert_image_equal(
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im, Image.open("Tests/images/imagedraw_arc_end_le_start.png")
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)
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def test_arc_no_loops(self):
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# No need to go in loops
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# Arrange
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im = Image.new("RGB", (W, H))
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draw = ImageDraw.Draw(im)
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start = 5
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end = 370
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# Act
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draw.arc(BBOX1, start=start, end=end)
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# Assert
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assert_image_similar(
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im, Image.open("Tests/images/imagedraw_arc_no_loops.png"), 1
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)
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def test_arc_width(self):
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# Arrange
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im = Image.new("RGB", (W, H))
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draw = ImageDraw.Draw(im)
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expected = "Tests/images/imagedraw_arc_width.png"
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# Act
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draw.arc(BBOX1, 10, 260, width=5)
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# Assert
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assert_image_similar(im, Image.open(expected), 1)
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def test_arc_width_pieslice_large(self):
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# Tests an arc with a large enough width that it is a pieslice
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# Arrange
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im = Image.new("RGB", (W, H))
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draw = ImageDraw.Draw(im)
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expected = "Tests/images/imagedraw_arc_width_pieslice.png"
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# Act
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draw.arc(BBOX1, 10, 260, fill="yellow", width=100)
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# Assert
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assert_image_similar(im, Image.open(expected), 1)
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def test_arc_width_fill(self):
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# Arrange
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im = Image.new("RGB", (W, H))
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draw = ImageDraw.Draw(im)
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expected = "Tests/images/imagedraw_arc_width_fill.png"
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# Act
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draw.arc(BBOX1, 10, 260, fill="yellow", width=5)
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# Assert
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assert_image_similar(im, Image.open(expected), 1)
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def test_arc_width_non_whole_angle(self):
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# Arrange
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im = Image.new("RGB", (W, H))
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draw = ImageDraw.Draw(im)
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expected = "Tests/images/imagedraw_arc_width_non_whole_angle.png"
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# Act
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draw.arc(BBOX1, 10, 259.5, width=5)
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# Assert
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assert_image_similar(im, Image.open(expected), 1)
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def test_bitmap(self):
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# Arrange
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im = Image.new("RGB", (W, H))
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draw = ImageDraw.Draw(im)
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with Image.open("Tests/images/pil123rgba.png") as small:
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small = small.resize((50, 50), Image.NEAREST)
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# Act
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draw.bitmap((10, 10), small)
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# Assert
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assert_image_equal(im, Image.open("Tests/images/imagedraw_bitmap.png"))
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def helper_chord(self, mode, bbox, start, end):
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# Arrange
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im = Image.new(mode, (W, H))
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draw = ImageDraw.Draw(im)
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expected = "Tests/images/imagedraw_chord_{}.png".format(mode)
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# Act
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draw.chord(bbox, start, end, fill="red", outline="yellow")
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# Assert
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assert_image_similar(im, Image.open(expected), 1)
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def test_chord1(self):
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for mode in ["RGB", "L"]:
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self.helper_chord(mode, BBOX1, 0, 180)
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self.helper_chord(mode, BBOX1, 0.5, 180.4)
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def test_chord2(self):
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for mode in ["RGB", "L"]:
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self.helper_chord(mode, BBOX2, 0, 180)
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self.helper_chord(mode, BBOX2, 0.5, 180.4)
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def test_chord_width(self):
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# Arrange
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im = Image.new("RGB", (W, H))
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draw = ImageDraw.Draw(im)
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expected = "Tests/images/imagedraw_chord_width.png"
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# Act
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draw.chord(BBOX1, 10, 260, outline="yellow", width=5)
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# Assert
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assert_image_similar(im, Image.open(expected), 1)
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def test_chord_width_fill(self):
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# Arrange
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im = Image.new("RGB", (W, H))
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draw = ImageDraw.Draw(im)
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expected = "Tests/images/imagedraw_chord_width_fill.png"
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# Act
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draw.chord(BBOX1, 10, 260, fill="red", outline="yellow", width=5)
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# Assert
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assert_image_similar(im, Image.open(expected), 1)
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def helper_ellipse(self, mode, bbox):
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# Arrange
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im = Image.new(mode, (W, H))
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draw = ImageDraw.Draw(im)
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expected = "Tests/images/imagedraw_ellipse_{}.png".format(mode)
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# Act
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draw.ellipse(bbox, fill="green", outline="blue")
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# Assert
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assert_image_similar(im, Image.open(expected), 1)
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def test_ellipse1(self):
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for mode in ["RGB", "L"]:
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self.helper_ellipse(mode, BBOX1)
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def test_ellipse2(self):
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for mode in ["RGB", "L"]:
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self.helper_ellipse(mode, BBOX2)
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def test_ellipse_translucent(self):
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# Arrange
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im = Image.new("RGB", (W, H))
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draw = ImageDraw.Draw(im, "RGBA")
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# Act
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draw.ellipse(BBOX1, fill=(0, 255, 0, 127))
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# Assert
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expected = Image.open("Tests/images/imagedraw_ellipse_translucent.png")
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assert_image_similar(im, expected, 1)
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def test_ellipse_edge(self):
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# Arrange
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im = Image.new("RGB", (W, H))
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draw = ImageDraw.Draw(im)
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# Act
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draw.ellipse(((0, 0), (W - 1, H)), fill="white")
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# Assert
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assert_image_similar(
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im, Image.open("Tests/images/imagedraw_ellipse_edge.png"), 1
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)
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def test_ellipse_symmetric(self):
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for bbox in [(25, 25, 76, 76), (25, 25, 75, 75)]:
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im = Image.new("RGB", (101, 101))
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draw = ImageDraw.Draw(im)
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draw.ellipse(bbox, fill="green", outline="blue")
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assert_image_equal(im, im.transpose(Image.FLIP_LEFT_RIGHT))
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def test_ellipse_width(self):
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# Arrange
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im = Image.new("RGB", (W, H))
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draw = ImageDraw.Draw(im)
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expected = "Tests/images/imagedraw_ellipse_width.png"
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# Act
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draw.ellipse(BBOX1, outline="blue", width=5)
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# Assert
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assert_image_similar(im, Image.open(expected), 1)
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def test_ellipse_width_large(self):
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# Arrange
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im = Image.new("RGB", (500, 500))
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draw = ImageDraw.Draw(im)
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expected = "Tests/images/imagedraw_ellipse_width_large.png"
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# Act
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draw.ellipse((25, 25, 475, 475), outline="blue", width=75)
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# Assert
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assert_image_similar(im, Image.open(expected), 1)
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def test_ellipse_width_fill(self):
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# Arrange
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im = Image.new("RGB", (W, H))
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draw = ImageDraw.Draw(im)
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expected = "Tests/images/imagedraw_ellipse_width_fill.png"
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# Act
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draw.ellipse(BBOX1, fill="green", outline="blue", width=5)
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# Assert
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assert_image_similar(im, Image.open(expected), 1)
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def helper_line(self, points):
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# Arrange
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im = Image.new("RGB", (W, H))
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draw = ImageDraw.Draw(im)
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# Act
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draw.line(points, fill="yellow", width=2)
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# Assert
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assert_image_equal(im, Image.open("Tests/images/imagedraw_line.png"))
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def test_line1(self):
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self.helper_line(POINTS1)
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def test_line2(self):
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self.helper_line(POINTS2)
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def test_shape1(self):
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# Arrange
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im = Image.new("RGB", (100, 100), "white")
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draw = ImageDraw.Draw(im)
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x0, y0 = 5, 5
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x1, y1 = 5, 50
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x2, y2 = 95, 50
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x3, y3 = 95, 5
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# Act
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s = ImageDraw.Outline()
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s.move(x0, y0)
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s.curve(x1, y1, x2, y2, x3, y3)
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s.line(x0, y0)
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draw.shape(s, fill=1)
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# Assert
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assert_image_equal(im, Image.open("Tests/images/imagedraw_shape1.png"))
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def test_shape2(self):
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# Arrange
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im = Image.new("RGB", (100, 100), "white")
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draw = ImageDraw.Draw(im)
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x0, y0 = 95, 95
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x1, y1 = 95, 50
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x2, y2 = 5, 50
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x3, y3 = 5, 95
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# Act
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s = ImageDraw.Outline()
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s.move(x0, y0)
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s.curve(x1, y1, x2, y2, x3, y3)
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s.line(x0, y0)
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draw.shape(s, outline="blue")
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# Assert
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assert_image_equal(im, Image.open("Tests/images/imagedraw_shape2.png"))
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def helper_pieslice(self, bbox, start, end):
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# Arrange
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im = Image.new("RGB", (W, H))
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draw = ImageDraw.Draw(im)
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# Act
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draw.pieslice(bbox, start, end, fill="white", outline="blue")
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# Assert
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assert_image_similar(im, Image.open("Tests/images/imagedraw_pieslice.png"), 1)
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def test_pieslice1(self):
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self.helper_pieslice(BBOX1, -90, 45)
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self.helper_pieslice(BBOX1, -90.5, 45.4)
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def test_pieslice2(self):
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self.helper_pieslice(BBOX2, -90, 45)
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self.helper_pieslice(BBOX2, -90.5, 45.4)
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def test_pieslice_width(self):
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# Arrange
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im = Image.new("RGB", (W, H))
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draw = ImageDraw.Draw(im)
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expected = "Tests/images/imagedraw_pieslice_width.png"
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# Act
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draw.pieslice(BBOX1, 10, 260, outline="blue", width=5)
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# Assert
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assert_image_similar(im, Image.open(expected), 1)
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def test_pieslice_width_fill(self):
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# Arrange
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im = Image.new("RGB", (W, H))
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draw = ImageDraw.Draw(im)
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expected = "Tests/images/imagedraw_pieslice_width_fill.png"
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# Act
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draw.pieslice(BBOX1, 10, 260, fill="white", outline="blue", width=5)
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# Assert
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assert_image_similar(im, Image.open(expected), 1)
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def helper_point(self, points):
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# Arrange
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im = Image.new("RGB", (W, H))
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draw = ImageDraw.Draw(im)
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# Act
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draw.point(points, fill="yellow")
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# Assert
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assert_image_equal(im, Image.open("Tests/images/imagedraw_point.png"))
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def test_point1(self):
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self.helper_point(POINTS1)
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def test_point2(self):
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self.helper_point(POINTS2)
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def helper_polygon(self, points):
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# Arrange
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im = Image.new("RGB", (W, H))
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draw = ImageDraw.Draw(im)
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# Act
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draw.polygon(points, fill="red", outline="blue")
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# Assert
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assert_image_equal(im, Image.open("Tests/images/imagedraw_polygon.png"))
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def test_polygon1(self):
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self.helper_polygon(POINTS1)
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def test_polygon2(self):
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self.helper_polygon(POINTS2)
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def test_polygon_kite(self):
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# Test drawing lines of different gradients (dx>dy, dy>dx) and
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# vertical (dx==0) and horizontal (dy==0) lines
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for mode in ["RGB", "L"]:
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# Arrange
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im = Image.new(mode, (W, H))
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draw = ImageDraw.Draw(im)
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expected = "Tests/images/imagedraw_polygon_kite_{}.png".format(mode)
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# Act
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draw.polygon(KITE_POINTS, fill="blue", outline="yellow")
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# Assert
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assert_image_equal(im, Image.open(expected))
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def helper_rectangle(self, bbox):
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# Arrange
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im = Image.new("RGB", (W, H))
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draw = ImageDraw.Draw(im)
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# Act
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draw.rectangle(bbox, fill="black", outline="green")
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# Assert
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assert_image_equal(im, Image.open("Tests/images/imagedraw_rectangle.png"))
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def test_rectangle1(self):
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self.helper_rectangle(BBOX1)
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def test_rectangle2(self):
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self.helper_rectangle(BBOX2)
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def test_big_rectangle(self):
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# Test drawing a rectangle bigger than the image
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# Arrange
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im = Image.new("RGB", (W, H))
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bbox = [(-1, -1), (W + 1, H + 1)]
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draw = ImageDraw.Draw(im)
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expected = "Tests/images/imagedraw_big_rectangle.png"
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# Act
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draw.rectangle(bbox, fill="orange")
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# Assert
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assert_image_similar(im, Image.open(expected), 1)
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def test_rectangle_width(self):
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# Arrange
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im = Image.new("RGB", (W, H))
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draw = ImageDraw.Draw(im)
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expected = "Tests/images/imagedraw_rectangle_width.png"
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# Act
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draw.rectangle(BBOX1, outline="green", width=5)
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# Assert
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assert_image_equal(im, Image.open(expected))
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def test_rectangle_width_fill(self):
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# Arrange
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im = Image.new("RGB", (W, H))
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draw = ImageDraw.Draw(im)
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expected = "Tests/images/imagedraw_rectangle_width_fill.png"
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# Act
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draw.rectangle(BBOX1, fill="blue", outline="green", width=5)
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# Assert
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assert_image_equal(im, Image.open(expected))
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def test_rectangle_I16(self):
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# Arrange
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im = Image.new("I;16", (W, H))
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draw = ImageDraw.Draw(im)
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# Act
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draw.rectangle(BBOX1, fill="black", outline="green")
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# Assert
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assert_image_equal(
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im.convert("I"), Image.open("Tests/images/imagedraw_rectangle_I.png")
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)
|
|
|
|
def test_floodfill(self):
|
|
red = ImageColor.getrgb("red")
|
|
|
|
for mode, value in [("L", 1), ("RGBA", (255, 0, 0, 0)), ("RGB", red)]:
|
|
# Arrange
|
|
im = Image.new(mode, (W, H))
|
|
draw = ImageDraw.Draw(im)
|
|
draw.rectangle(BBOX2, outline="yellow", fill="green")
|
|
centre_point = (int(W / 2), int(H / 2))
|
|
|
|
# Act
|
|
ImageDraw.floodfill(im, centre_point, value)
|
|
|
|
# Assert
|
|
expected = "Tests/images/imagedraw_floodfill_" + mode + ".png"
|
|
with Image.open(expected) as im_floodfill:
|
|
assert_image_equal(im, im_floodfill)
|
|
|
|
# Test that using the same colour does not change the image
|
|
ImageDraw.floodfill(im, centre_point, red)
|
|
assert_image_equal(im, im_floodfill)
|
|
|
|
# Test that filling outside the image does not change the image
|
|
ImageDraw.floodfill(im, (W, H), red)
|
|
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)
|
|
assert_image_equal(im, Image.new("RGB", (1, 1), red))
|
|
|
|
def test_floodfill_border(self):
|
|
# floodfill() is experimental
|
|
|
|
# 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))
|
|
|
|
# Act
|
|
ImageDraw.floodfill(
|
|
im,
|
|
centre_point,
|
|
ImageColor.getrgb("red"),
|
|
border=ImageColor.getrgb("black"),
|
|
)
|
|
|
|
# Assert
|
|
assert_image_equal(im, Image.open("Tests/images/imagedraw_floodfill2.png"))
|
|
|
|
def test_floodfill_thresh(self):
|
|
# floodfill() is experimental
|
|
|
|
# Arrange
|
|
im = Image.new("RGB", (W, H))
|
|
draw = ImageDraw.Draw(im)
|
|
draw.rectangle(BBOX2, outline="darkgreen", fill="green")
|
|
centre_point = (int(W / 2), int(H / 2))
|
|
|
|
# Act
|
|
ImageDraw.floodfill(im, centre_point, ImageColor.getrgb("red"), thresh=30)
|
|
|
|
# Assert
|
|
assert_image_equal(im, Image.open("Tests/images/imagedraw_floodfill2.png"))
|
|
|
|
def test_floodfill_not_negative(self):
|
|
# floodfill() is experimental
|
|
# Test that floodfill does not extend into negative coordinates
|
|
|
|
# Arrange
|
|
im = Image.new("RGB", (W, H))
|
|
draw = ImageDraw.Draw(im)
|
|
draw.line((W / 2, 0, W / 2, H / 2), fill="green")
|
|
draw.line((0, H / 2, W / 2, H / 2), fill="green")
|
|
|
|
# Act
|
|
ImageDraw.floodfill(im, (int(W / 4), int(H / 4)), ImageColor.getrgb("red"))
|
|
|
|
# Assert
|
|
assert_image_equal(
|
|
im, Image.open("Tests/images/imagedraw_floodfill_not_negative.png")
|
|
)
|
|
|
|
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 test_square(self):
|
|
with Image.open(os.path.join(IMAGES_PATH, "square.png")) as expected:
|
|
expected.load()
|
|
img, draw = self.create_base_image_draw((10, 10))
|
|
draw.polygon([(2, 2), (2, 7), (7, 7), (7, 2)], BLACK)
|
|
assert_image_equal(img, expected, "square as normal polygon failed")
|
|
img, draw = self.create_base_image_draw((10, 10))
|
|
draw.polygon([(7, 7), (7, 2), (2, 2), (2, 7)], BLACK)
|
|
assert_image_equal(img, expected, "square as inverted polygon failed")
|
|
img, draw = self.create_base_image_draw((10, 10))
|
|
draw.rectangle((2, 2, 7, 7), BLACK)
|
|
assert_image_equal(img, expected, "square as normal rectangle failed")
|
|
img, draw = self.create_base_image_draw((10, 10))
|
|
draw.rectangle((7, 7, 2, 2), BLACK)
|
|
assert_image_equal(img, expected, "square as inverted rectangle failed")
|
|
|
|
def test_triangle_right(self):
|
|
with Image.open(os.path.join(IMAGES_PATH, "triangle_right.png")) as expected:
|
|
expected.load()
|
|
img, draw = self.create_base_image_draw((20, 20))
|
|
draw.polygon([(3, 5), (17, 5), (10, 12)], BLACK)
|
|
assert_image_equal(img, expected, "triangle right failed")
|
|
|
|
def test_line_horizontal(self):
|
|
with Image.open(
|
|
os.path.join(IMAGES_PATH, "line_horizontal_w2px_normal.png")
|
|
) as expected:
|
|
expected.load()
|
|
img, draw = self.create_base_image_draw((20, 20))
|
|
draw.line((5, 5, 14, 5), BLACK, 2)
|
|
assert_image_equal(
|
|
img, expected, "line straight horizontal normal 2px wide failed"
|
|
)
|
|
with Image.open(
|
|
os.path.join(IMAGES_PATH, "line_horizontal_w2px_inverted.png")
|
|
) as expected:
|
|
expected.load()
|
|
img, draw = self.create_base_image_draw((20, 20))
|
|
draw.line((14, 5, 5, 5), BLACK, 2)
|
|
assert_image_equal(
|
|
img, expected, "line straight horizontal inverted 2px wide failed"
|
|
)
|
|
with Image.open(
|
|
os.path.join(IMAGES_PATH, "line_horizontal_w3px.png")
|
|
) as expected:
|
|
expected.load()
|
|
img, draw = self.create_base_image_draw((20, 20))
|
|
draw.line((5, 5, 14, 5), BLACK, 3)
|
|
assert_image_equal(
|
|
img, expected, "line straight horizontal normal 3px wide failed"
|
|
)
|
|
img, draw = self.create_base_image_draw((20, 20))
|
|
draw.line((14, 5, 5, 5), BLACK, 3)
|
|
assert_image_equal(
|
|
img, expected, "line straight horizontal inverted 3px wide failed"
|
|
)
|
|
with Image.open(
|
|
os.path.join(IMAGES_PATH, "line_horizontal_w101px.png")
|
|
) as expected:
|
|
expected.load()
|
|
img, draw = self.create_base_image_draw((200, 110))
|
|
draw.line((5, 55, 195, 55), BLACK, 101)
|
|
assert_image_equal(
|
|
img, expected, "line straight horizontal 101px wide failed"
|
|
)
|
|
|
|
def test_line_h_s1_w2(self):
|
|
self.skipTest("failing")
|
|
with Image.open(
|
|
os.path.join(IMAGES_PATH, "line_horizontal_slope1px_w2px.png")
|
|
) as expected:
|
|
expected.load()
|
|
img, draw = self.create_base_image_draw((20, 20))
|
|
draw.line((5, 5, 14, 6), BLACK, 2)
|
|
assert_image_equal(
|
|
img, expected, "line horizontal 1px slope 2px wide failed"
|
|
)
|
|
|
|
def test_line_vertical(self):
|
|
with Image.open(
|
|
os.path.join(IMAGES_PATH, "line_vertical_w2px_normal.png")
|
|
) as expected:
|
|
expected.load()
|
|
img, draw = self.create_base_image_draw((20, 20))
|
|
draw.line((5, 5, 5, 14), BLACK, 2)
|
|
assert_image_equal(
|
|
img, expected, "line straight vertical normal 2px wide failed"
|
|
)
|
|
with Image.open(
|
|
os.path.join(IMAGES_PATH, "line_vertical_w2px_inverted.png")
|
|
) as expected:
|
|
expected.load()
|
|
img, draw = self.create_base_image_draw((20, 20))
|
|
draw.line((5, 14, 5, 5), BLACK, 2)
|
|
assert_image_equal(
|
|
img, expected, "line straight vertical inverted 2px wide failed"
|
|
)
|
|
with Image.open(
|
|
os.path.join(IMAGES_PATH, "line_vertical_w3px.png")
|
|
) as expected:
|
|
expected.load()
|
|
img, draw = self.create_base_image_draw((20, 20))
|
|
draw.line((5, 5, 5, 14), BLACK, 3)
|
|
assert_image_equal(
|
|
img, expected, "line straight vertical normal 3px wide failed"
|
|
)
|
|
img, draw = self.create_base_image_draw((20, 20))
|
|
draw.line((5, 14, 5, 5), BLACK, 3)
|
|
assert_image_equal(
|
|
img, expected, "line straight vertical inverted 3px wide failed"
|
|
)
|
|
with Image.open(
|
|
os.path.join(IMAGES_PATH, "line_vertical_w101px.png")
|
|
) as expected:
|
|
expected.load()
|
|
img, draw = self.create_base_image_draw((110, 200))
|
|
draw.line((55, 5, 55, 195), BLACK, 101)
|
|
assert_image_equal(
|
|
img, expected, "line straight vertical 101px wide failed"
|
|
)
|
|
with Image.open(
|
|
os.path.join(IMAGES_PATH, "line_vertical_slope1px_w2px.png")
|
|
) as expected:
|
|
expected.load()
|
|
img, draw = self.create_base_image_draw((20, 20))
|
|
draw.line((5, 5, 6, 14), BLACK, 2)
|
|
assert_image_equal(img, expected, "line vertical 1px slope 2px wide failed")
|
|
|
|
def test_line_oblique_45(self):
|
|
with Image.open(
|
|
os.path.join(IMAGES_PATH, "line_oblique_45_w3px_a.png")
|
|
) as expected:
|
|
expected.load()
|
|
img, draw = self.create_base_image_draw((20, 20))
|
|
draw.line((5, 5, 14, 14), BLACK, 3)
|
|
assert_image_equal(
|
|
img, expected, "line oblique 45 normal 3px wide A failed"
|
|
)
|
|
img, draw = self.create_base_image_draw((20, 20))
|
|
draw.line((14, 14, 5, 5), BLACK, 3)
|
|
assert_image_equal(
|
|
img, expected, "line oblique 45 inverted 3px wide A failed"
|
|
)
|
|
with Image.open(
|
|
os.path.join(IMAGES_PATH, "line_oblique_45_w3px_b.png")
|
|
) as expected:
|
|
expected.load()
|
|
img, draw = self.create_base_image_draw((20, 20))
|
|
draw.line((14, 5, 5, 14), BLACK, 3)
|
|
assert_image_equal(
|
|
img, expected, "line oblique 45 normal 3px wide B failed"
|
|
)
|
|
img, draw = self.create_base_image_draw((20, 20))
|
|
draw.line((5, 14, 14, 5), BLACK, 3)
|
|
assert_image_equal(
|
|
img, expected, "line oblique 45 inverted 3px wide B failed"
|
|
)
|
|
|
|
def test_wide_line_dot(self):
|
|
# Test drawing a wide "line" from one point to another just draws
|
|
# a single point
|
|
# Arrange
|
|
im = Image.new("RGB", (W, H))
|
|
draw = ImageDraw.Draw(im)
|
|
expected = "Tests/images/imagedraw_wide_line_dot.png"
|
|
|
|
# Act
|
|
draw.line([(50, 50), (50, 50)], width=3)
|
|
|
|
# Assert
|
|
assert_image_similar(im, Image.open(expected), 1)
|
|
|
|
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
|
|
assert_image_similar(im, Image.open(expected), 3)
|
|
|
|
def test_textsize_empty_string(self):
|
|
# https://github.com/python-pillow/Pillow/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")
|
|
|
|
@unittest.skipUnless(HAS_FREETYPE, "ImageFont not available")
|
|
def test_textsize_stroke(self):
|
|
# Arrange
|
|
im = Image.new("RGB", (W, H))
|
|
draw = ImageDraw.Draw(im)
|
|
font = ImageFont.truetype("Tests/fonts/FreeMono.ttf", 20)
|
|
|
|
# Act / Assert
|
|
self.assertEqual(draw.textsize("A", font, stroke_width=2), (16, 20))
|
|
self.assertEqual(
|
|
draw.multiline_textsize("ABC\nAaaa", font, stroke_width=2), (52, 44)
|
|
)
|
|
|
|
@unittest.skipUnless(HAS_FREETYPE, "ImageFont not available")
|
|
def test_stroke(self):
|
|
for suffix, stroke_fill in {"same": None, "different": "#0f0"}.items():
|
|
# Arrange
|
|
im = Image.new("RGB", (120, 130))
|
|
draw = ImageDraw.Draw(im)
|
|
font = ImageFont.truetype("Tests/fonts/FreeMono.ttf", 120)
|
|
|
|
# Act
|
|
draw.text(
|
|
(10, 10), "A", "#f00", font, stroke_width=2, stroke_fill=stroke_fill
|
|
)
|
|
|
|
# Assert
|
|
assert_image_similar(
|
|
im, Image.open("Tests/images/imagedraw_stroke_" + suffix + ".png"), 3.1
|
|
)
|
|
|
|
@unittest.skipUnless(HAS_FREETYPE, "ImageFont not available")
|
|
def test_stroke_multiline(self):
|
|
# Arrange
|
|
im = Image.new("RGB", (100, 250))
|
|
draw = ImageDraw.Draw(im)
|
|
font = ImageFont.truetype("Tests/fonts/FreeMono.ttf", 120)
|
|
|
|
# Act
|
|
draw.multiline_text(
|
|
(10, 10), "A\nB", "#f00", font, stroke_width=2, stroke_fill="#0f0"
|
|
)
|
|
|
|
# Assert
|
|
assert_image_similar(
|
|
im, Image.open("Tests/images/imagedraw_stroke_multiline.png"), 3.3
|
|
)
|
|
|
|
def test_same_color_outline(self):
|
|
# Prepare shape
|
|
x0, y0 = 5, 5
|
|
x1, y1 = 5, 50
|
|
x2, y2 = 95, 50
|
|
x3, y3 = 95, 5
|
|
|
|
s = ImageDraw.Outline()
|
|
s.move(x0, y0)
|
|
s.curve(x1, y1, x2, y2, x3, y3)
|
|
s.line(x0, y0)
|
|
|
|
# Begin
|
|
for mode in ["RGB", "L"]:
|
|
for fill, outline in [["red", None], ["red", "red"], ["red", "#f00"]]:
|
|
for operation, args in {
|
|
"chord": [BBOX1, 0, 180],
|
|
"ellipse": [BBOX1],
|
|
"shape": [s],
|
|
"pieslice": [BBOX1, -90, 45],
|
|
"polygon": [[(18, 30), (85, 30), (60, 72)]],
|
|
"rectangle": [BBOX1],
|
|
}.items():
|
|
# Arrange
|
|
im = Image.new(mode, (W, H))
|
|
draw = ImageDraw.Draw(im)
|
|
|
|
# Act
|
|
draw_method = getattr(draw, operation)
|
|
args += [fill, outline]
|
|
draw_method(*args)
|
|
|
|
# Assert
|
|
expected = "Tests/images/imagedraw_outline_{}_{}.png".format(
|
|
operation, mode
|
|
)
|
|
assert_image_similar(im, Image.open(expected), 1)
|