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1352 lines
34 KiB
Python
1352 lines
34 KiB
Python
import os.path
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import pytest
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from PIL import Image, ImageColor, ImageDraw, ImageFont
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from .helper import (
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assert_image_equal,
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assert_image_equal_tofile,
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assert_image_similar_tofile,
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hopper,
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skip_unless_feature,
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)
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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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def test_sanity():
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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():
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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():
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im = hopper("RGB").copy()
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with pytest.raises(ValueError):
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ImageDraw.ImageDraw(im, mode="L")
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def helper_arc(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_tofile(im, "Tests/images/imagedraw_arc.png", 1)
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def test_arc1():
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helper_arc(BBOX1, 0, 180)
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helper_arc(BBOX1, 0.5, 180.4)
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def test_arc2():
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helper_arc(BBOX2, 0, 180)
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helper_arc(BBOX2, 0.5, 180.4)
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def test_arc_end_le_start():
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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_tofile(im, "Tests/images/imagedraw_arc_end_le_start.png")
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def test_arc_no_loops():
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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_tofile(im, "Tests/images/imagedraw_arc_no_loops.png", 1)
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def test_arc_width():
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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(BBOX1, 10, 260, width=5)
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# Assert
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assert_image_similar_tofile(im, "Tests/images/imagedraw_arc_width.png", 1)
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def test_arc_width_pieslice_large():
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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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# 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_tofile(im, "Tests/images/imagedraw_arc_width_pieslice.png", 1)
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def test_arc_width_fill():
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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(BBOX1, 10, 260, fill="yellow", width=5)
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# Assert
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assert_image_similar_tofile(im, "Tests/images/imagedraw_arc_width_fill.png", 1)
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def test_arc_width_non_whole_angle():
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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_tofile(im, expected, 1)
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def test_arc_high():
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# Arrange
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im = Image.new("RGB", (200, 200))
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draw = ImageDraw.Draw(im)
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# Act
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draw.arc([10, 10, 89, 189], 20, 330, width=20, fill="white")
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draw.arc([110, 10, 189, 189], 20, 150, width=20, fill="white")
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# Assert
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assert_image_equal_tofile(im, "Tests/images/imagedraw_arc_high.png")
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def test_bitmap():
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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_tofile(im, "Tests/images/imagedraw_bitmap.png")
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def helper_chord(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 = f"Tests/images/imagedraw_chord_{mode}.png"
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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_tofile(im, expected, 1)
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def test_chord1():
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for mode in ["RGB", "L"]:
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helper_chord(mode, BBOX1, 0, 180)
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def test_chord2():
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for mode in ["RGB", "L"]:
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helper_chord(mode, BBOX2, 0, 180)
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def test_chord_width():
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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.chord(BBOX1, 10, 260, outline="yellow", width=5)
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# Assert
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assert_image_similar_tofile(im, "Tests/images/imagedraw_chord_width.png", 1)
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def test_chord_width_fill():
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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.chord(BBOX1, 10, 260, fill="red", outline="yellow", width=5)
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# Assert
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assert_image_similar_tofile(im, "Tests/images/imagedraw_chord_width_fill.png", 1)
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def test_chord_zero_width():
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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.chord(BBOX1, 10, 260, fill="red", outline="yellow", width=0)
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# Assert
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assert_image_equal_tofile(im, "Tests/images/imagedraw_chord_zero_width.png")
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def test_chord_too_fat():
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# Arrange
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im = Image.new("RGB", (100, 100))
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draw = ImageDraw.Draw(im)
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# Act
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draw.chord([-150, -150, 99, 99], 15, 60, width=10, fill="white", outline="red")
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# Assert
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assert_image_equal_tofile(im, "Tests/images/imagedraw_chord_too_fat.png")
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def helper_ellipse(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 = f"Tests/images/imagedraw_ellipse_{mode}.png"
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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_tofile(im, expected, 1)
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def test_ellipse1():
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for mode in ["RGB", "L"]:
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helper_ellipse(mode, BBOX1)
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def test_ellipse2():
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for mode in ["RGB", "L"]:
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helper_ellipse(mode, BBOX2)
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def test_ellipse_translucent():
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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 = "Tests/images/imagedraw_ellipse_translucent.png"
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assert_image_similar_tofile(im, expected, 1)
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def test_ellipse_edge():
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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 - 1)), fill="white")
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# Assert
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assert_image_similar_tofile(im, "Tests/images/imagedraw_ellipse_edge.png", 1)
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def test_ellipse_symmetric():
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for width, bbox in (
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(100, (24, 24, 75, 75)),
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(101, (25, 25, 75, 75)),
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):
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im = Image.new("RGB", (width, 100))
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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():
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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(BBOX1, outline="blue", width=5)
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# Assert
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assert_image_similar_tofile(im, "Tests/images/imagedraw_ellipse_width.png", 1)
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def test_ellipse_width_large():
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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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# 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_tofile(im, "Tests/images/imagedraw_ellipse_width_large.png", 1)
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def test_ellipse_width_fill():
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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(BBOX1, fill="green", outline="blue", width=5)
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# Assert
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assert_image_similar_tofile(im, "Tests/images/imagedraw_ellipse_width_fill.png", 1)
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def test_ellipse_zero_width():
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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(BBOX1, fill="green", outline="blue", width=0)
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# Assert
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assert_image_equal_tofile(im, "Tests/images/imagedraw_ellipse_zero_width.png")
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def ellipse_various_sizes_helper(filled):
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ellipse_sizes = range(32)
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image_size = sum(ellipse_sizes) + len(ellipse_sizes) + 1
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im = Image.new("RGB", (image_size, image_size))
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draw = ImageDraw.Draw(im)
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x = 1
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for w in ellipse_sizes:
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y = 1
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for h in ellipse_sizes:
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border = [x, y, x + w - 1, y + h - 1]
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if filled:
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draw.ellipse(border, fill="white")
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else:
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draw.ellipse(border, outline="white")
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y += h + 1
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x += w + 1
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return im
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def test_ellipse_various_sizes():
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im = ellipse_various_sizes_helper(False)
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assert_image_equal_tofile(im, "Tests/images/imagedraw_ellipse_various_sizes.png")
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def test_ellipse_various_sizes_filled():
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im = ellipse_various_sizes_helper(True)
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assert_image_equal_tofile(
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im, "Tests/images/imagedraw_ellipse_various_sizes_filled.png"
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)
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def helper_line(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_tofile(im, "Tests/images/imagedraw_line.png")
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def test_line1():
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helper_line(POINTS1)
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def test_line2():
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helper_line(POINTS2)
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def test_shape1():
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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_tofile(im, "Tests/images/imagedraw_shape1.png")
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def test_shape2():
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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_tofile(im, "Tests/images/imagedraw_shape2.png")
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def helper_pieslice(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_tofile(im, "Tests/images/imagedraw_pieslice.png", 1)
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def test_pieslice1():
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helper_pieslice(BBOX1, -92, 46)
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helper_pieslice(BBOX1, -92.2, 46.2)
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def test_pieslice2():
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helper_pieslice(BBOX2, -92, 46)
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helper_pieslice(BBOX2, -92.2, 46.2)
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def test_pieslice_width():
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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(BBOX1, 10, 260, outline="blue", width=5)
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# Assert
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assert_image_similar_tofile(im, "Tests/images/imagedraw_pieslice_width.png", 1)
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def test_pieslice_width_fill():
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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_tofile(im, expected, 1)
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def test_pieslice_zero_width():
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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(BBOX1, 10, 260, fill="white", outline="blue", width=0)
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# Assert
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assert_image_equal_tofile(im, "Tests/images/imagedraw_pieslice_zero_width.png")
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def test_pieslice_wide():
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# Arrange
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im = Image.new("RGB", (200, 100))
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draw = ImageDraw.Draw(im)
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# Act
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draw.pieslice([0, 0, 199, 99], 190, 170, width=10, fill="white", outline="red")
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# Assert
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assert_image_equal_tofile(im, "Tests/images/imagedraw_pieslice_wide.png")
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def helper_point(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_tofile(im, "Tests/images/imagedraw_point.png")
|
|
|
|
|
|
def test_point1():
|
|
helper_point(POINTS1)
|
|
|
|
|
|
def test_point2():
|
|
helper_point(POINTS2)
|
|
|
|
|
|
def helper_polygon(points):
|
|
# Arrange
|
|
im = Image.new("RGB", (W, H))
|
|
draw = ImageDraw.Draw(im)
|
|
|
|
# Act
|
|
draw.polygon(points, fill="red", outline="blue")
|
|
|
|
# Assert
|
|
assert_image_equal_tofile(im, "Tests/images/imagedraw_polygon.png")
|
|
|
|
|
|
def test_polygon1():
|
|
helper_polygon(POINTS1)
|
|
|
|
|
|
def test_polygon2():
|
|
helper_polygon(POINTS2)
|
|
|
|
|
|
def test_polygon_kite():
|
|
# Test drawing lines of different gradients (dx>dy, dy>dx) and
|
|
# vertical (dx==0) and horizontal (dy==0) lines
|
|
for mode in ["RGB", "L"]:
|
|
# Arrange
|
|
im = Image.new(mode, (W, H))
|
|
draw = ImageDraw.Draw(im)
|
|
expected = f"Tests/images/imagedraw_polygon_kite_{mode}.png"
|
|
|
|
# Act
|
|
draw.polygon(KITE_POINTS, fill="blue", outline="yellow")
|
|
|
|
# Assert
|
|
assert_image_equal_tofile(im, expected)
|
|
|
|
|
|
def test_polygon_1px_high():
|
|
# Test drawing a 1px high polygon
|
|
# Arrange
|
|
im = Image.new("RGB", (3, 3))
|
|
draw = ImageDraw.Draw(im)
|
|
expected = "Tests/images/imagedraw_polygon_1px_high.png"
|
|
|
|
# Act
|
|
draw.polygon([(0, 1), (0, 1), (2, 1), (2, 1)], "#f00")
|
|
|
|
# Assert
|
|
assert_image_equal_tofile(im, expected)
|
|
|
|
|
|
def helper_rectangle(bbox):
|
|
# Arrange
|
|
im = Image.new("RGB", (W, H))
|
|
draw = ImageDraw.Draw(im)
|
|
|
|
# Act
|
|
draw.rectangle(bbox, fill="black", outline="green")
|
|
|
|
# Assert
|
|
assert_image_equal_tofile(im, "Tests/images/imagedraw_rectangle.png")
|
|
|
|
|
|
def test_rectangle1():
|
|
helper_rectangle(BBOX1)
|
|
|
|
|
|
def test_rectangle2():
|
|
helper_rectangle(BBOX2)
|
|
|
|
|
|
def test_big_rectangle():
|
|
# Test drawing a rectangle bigger than the image
|
|
# Arrange
|
|
im = Image.new("RGB", (W, H))
|
|
bbox = [(-1, -1), (W + 1, H + 1)]
|
|
draw = ImageDraw.Draw(im)
|
|
|
|
# Act
|
|
draw.rectangle(bbox, fill="orange")
|
|
|
|
# Assert
|
|
assert_image_similar_tofile(im, "Tests/images/imagedraw_big_rectangle.png", 1)
|
|
|
|
|
|
def test_rectangle_width():
|
|
# Arrange
|
|
im = Image.new("RGB", (W, H))
|
|
draw = ImageDraw.Draw(im)
|
|
expected = "Tests/images/imagedraw_rectangle_width.png"
|
|
|
|
# Act
|
|
draw.rectangle(BBOX1, outline="green", width=5)
|
|
|
|
# Assert
|
|
assert_image_equal_tofile(im, expected)
|
|
|
|
|
|
def test_rectangle_width_fill():
|
|
# Arrange
|
|
im = Image.new("RGB", (W, H))
|
|
draw = ImageDraw.Draw(im)
|
|
expected = "Tests/images/imagedraw_rectangle_width_fill.png"
|
|
|
|
# Act
|
|
draw.rectangle(BBOX1, fill="blue", outline="green", width=5)
|
|
|
|
# Assert
|
|
assert_image_equal_tofile(im, expected)
|
|
|
|
|
|
def test_rectangle_zero_width():
|
|
# Arrange
|
|
im = Image.new("RGB", (W, H))
|
|
draw = ImageDraw.Draw(im)
|
|
|
|
# Act
|
|
draw.rectangle(BBOX1, fill="blue", outline="green", width=0)
|
|
|
|
# Assert
|
|
assert_image_equal_tofile(im, "Tests/images/imagedraw_rectangle_zero_width.png")
|
|
|
|
|
|
def test_rectangle_I16():
|
|
# Arrange
|
|
im = Image.new("I;16", (W, H))
|
|
draw = ImageDraw.Draw(im)
|
|
|
|
# Act
|
|
draw.rectangle(BBOX1, fill="black", outline="green")
|
|
|
|
# Assert
|
|
assert_image_equal_tofile(im.convert("I"), "Tests/images/imagedraw_rectangle_I.png")
|
|
|
|
|
|
def test_rectangle_translucent_outline():
|
|
# Arrange
|
|
im = Image.new("RGB", (W, H))
|
|
draw = ImageDraw.Draw(im, "RGBA")
|
|
|
|
# Act
|
|
draw.rectangle(BBOX1, fill="black", outline=(0, 255, 0, 127), width=5)
|
|
|
|
# Assert
|
|
assert_image_equal_tofile(
|
|
im, "Tests/images/imagedraw_rectangle_translucent_outline.png"
|
|
)
|
|
|
|
|
|
@pytest.mark.parametrize(
|
|
"xy",
|
|
[(10, 20, 190, 180), ([10, 20], [190, 180]), ((10, 20), (190, 180))],
|
|
)
|
|
def test_rounded_rectangle(xy):
|
|
# Arrange
|
|
im = Image.new("RGB", (200, 200))
|
|
draw = ImageDraw.Draw(im)
|
|
|
|
# Act
|
|
draw.rounded_rectangle(xy, 30, fill="red", outline="green", width=5)
|
|
|
|
# Assert
|
|
assert_image_equal_tofile(im, "Tests/images/imagedraw_rounded_rectangle.png")
|
|
|
|
|
|
@pytest.mark.parametrize(
|
|
"xy, radius, type",
|
|
[
|
|
((10, 20, 190, 180), 30.5, "given"),
|
|
((10, 10, 181, 190), 90, "width"),
|
|
((10, 20, 190, 181), 85, "height"),
|
|
],
|
|
)
|
|
def test_rounded_rectangle_non_integer_radius(xy, radius, type):
|
|
# Arrange
|
|
im = Image.new("RGB", (200, 200))
|
|
draw = ImageDraw.Draw(im)
|
|
|
|
# Act
|
|
draw.rounded_rectangle(xy, radius, fill="red", outline="green", width=5)
|
|
|
|
# Assert
|
|
assert_image_equal_tofile(
|
|
im,
|
|
"Tests/images/imagedraw_rounded_rectangle_non_integer_radius_" + type + ".png",
|
|
)
|
|
|
|
|
|
def test_rounded_rectangle_zero_radius():
|
|
# Arrange
|
|
im = Image.new("RGB", (W, H))
|
|
draw = ImageDraw.Draw(im)
|
|
|
|
# Act
|
|
draw.rounded_rectangle(BBOX1, 0, fill="blue", outline="green", width=5)
|
|
|
|
# Assert
|
|
assert_image_equal_tofile(im, "Tests/images/imagedraw_rectangle_width_fill.png")
|
|
|
|
|
|
@pytest.mark.parametrize(
|
|
"xy, suffix",
|
|
[
|
|
((20, 10, 80, 90), "x"),
|
|
((10, 20, 90, 80), "y"),
|
|
((20, 20, 80, 80), "both"),
|
|
],
|
|
)
|
|
def test_rounded_rectangle_translucent(xy, suffix):
|
|
# Arrange
|
|
im = Image.new("RGB", (W, H))
|
|
draw = ImageDraw.Draw(im, "RGBA")
|
|
|
|
# Act
|
|
draw.rounded_rectangle(
|
|
xy, 30, fill=(255, 0, 0, 127), outline=(0, 255, 0, 127), width=5
|
|
)
|
|
|
|
# Assert
|
|
assert_image_equal_tofile(
|
|
im, "Tests/images/imagedraw_rounded_rectangle_" + suffix + ".png"
|
|
)
|
|
|
|
|
|
def test_floodfill():
|
|
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():
|
|
# 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_tofile(im, "Tests/images/imagedraw_floodfill2.png")
|
|
|
|
|
|
def test_floodfill_thresh():
|
|
# 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_tofile(im, "Tests/images/imagedraw_floodfill2.png")
|
|
|
|
|
|
def test_floodfill_not_negative():
|
|
# 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_tofile(im, "Tests/images/imagedraw_floodfill_not_negative.png")
|
|
|
|
|
|
def create_base_image_draw(
|
|
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():
|
|
expected = os.path.join(IMAGES_PATH, "square.png")
|
|
img, draw = create_base_image_draw((10, 10))
|
|
draw.polygon([(2, 2), (2, 7), (7, 7), (7, 2)], BLACK)
|
|
assert_image_equal_tofile(img, expected, "square as normal polygon failed")
|
|
img, draw = create_base_image_draw((10, 10))
|
|
draw.polygon([(7, 7), (7, 2), (2, 2), (2, 7)], BLACK)
|
|
assert_image_equal_tofile(img, expected, "square as inverted polygon failed")
|
|
img, draw = create_base_image_draw((10, 10))
|
|
draw.rectangle((2, 2, 7, 7), BLACK)
|
|
assert_image_equal_tofile(img, expected, "square as normal rectangle failed")
|
|
img, draw = create_base_image_draw((10, 10))
|
|
draw.rectangle((7, 7, 2, 2), BLACK)
|
|
assert_image_equal_tofile(img, expected, "square as inverted rectangle failed")
|
|
|
|
|
|
def test_triangle_right():
|
|
img, draw = create_base_image_draw((20, 20))
|
|
draw.polygon([(3, 5), (17, 5), (10, 12)], BLACK)
|
|
assert_image_equal_tofile(
|
|
img, os.path.join(IMAGES_PATH, "triangle_right.png"), "triangle right failed"
|
|
)
|
|
|
|
|
|
def test_line_horizontal():
|
|
img, draw = create_base_image_draw((20, 20))
|
|
draw.line((5, 5, 14, 5), BLACK, 2)
|
|
assert_image_equal_tofile(
|
|
img,
|
|
os.path.join(IMAGES_PATH, "line_horizontal_w2px_normal.png"),
|
|
"line straight horizontal normal 2px wide failed",
|
|
)
|
|
|
|
img, draw = create_base_image_draw((20, 20))
|
|
draw.line((14, 5, 5, 5), BLACK, 2)
|
|
assert_image_equal_tofile(
|
|
img,
|
|
os.path.join(IMAGES_PATH, "line_horizontal_w2px_inverted.png"),
|
|
"line straight horizontal inverted 2px wide failed",
|
|
)
|
|
|
|
expected = os.path.join(IMAGES_PATH, "line_horizontal_w3px.png")
|
|
img, draw = create_base_image_draw((20, 20))
|
|
draw.line((5, 5, 14, 5), BLACK, 3)
|
|
assert_image_equal_tofile(
|
|
img, expected, "line straight horizontal normal 3px wide failed"
|
|
)
|
|
img, draw = create_base_image_draw((20, 20))
|
|
draw.line((14, 5, 5, 5), BLACK, 3)
|
|
assert_image_equal_tofile(
|
|
img, expected, "line straight horizontal inverted 3px wide failed"
|
|
)
|
|
|
|
img, draw = create_base_image_draw((200, 110))
|
|
draw.line((5, 55, 195, 55), BLACK, 101)
|
|
assert_image_equal_tofile(
|
|
img,
|
|
os.path.join(IMAGES_PATH, "line_horizontal_w101px.png"),
|
|
"line straight horizontal 101px wide failed",
|
|
)
|
|
|
|
|
|
def test_line_h_s1_w2():
|
|
pytest.skip("failing")
|
|
img, draw = create_base_image_draw((20, 20))
|
|
draw.line((5, 5, 14, 6), BLACK, 2)
|
|
assert_image_equal_tofile(
|
|
img,
|
|
os.path.join(IMAGES_PATH, "line_horizontal_slope1px_w2px.png"),
|
|
"line horizontal 1px slope 2px wide failed",
|
|
)
|
|
|
|
|
|
def test_line_vertical():
|
|
img, draw = create_base_image_draw((20, 20))
|
|
draw.line((5, 5, 5, 14), BLACK, 2)
|
|
assert_image_equal_tofile(
|
|
img,
|
|
os.path.join(IMAGES_PATH, "line_vertical_w2px_normal.png"),
|
|
"line straight vertical normal 2px wide failed",
|
|
)
|
|
|
|
img, draw = create_base_image_draw((20, 20))
|
|
draw.line((5, 14, 5, 5), BLACK, 2)
|
|
assert_image_equal_tofile(
|
|
img,
|
|
os.path.join(IMAGES_PATH, "line_vertical_w2px_inverted.png"),
|
|
"line straight vertical inverted 2px wide failed",
|
|
)
|
|
|
|
expected = os.path.join(IMAGES_PATH, "line_vertical_w3px.png")
|
|
img, draw = create_base_image_draw((20, 20))
|
|
draw.line((5, 5, 5, 14), BLACK, 3)
|
|
assert_image_equal_tofile(
|
|
img, expected, "line straight vertical normal 3px wide failed"
|
|
)
|
|
img, draw = create_base_image_draw((20, 20))
|
|
draw.line((5, 14, 5, 5), BLACK, 3)
|
|
assert_image_equal_tofile(
|
|
img, expected, "line straight vertical inverted 3px wide failed"
|
|
)
|
|
|
|
img, draw = create_base_image_draw((110, 200))
|
|
draw.line((55, 5, 55, 195), BLACK, 101)
|
|
assert_image_equal_tofile(
|
|
img,
|
|
os.path.join(IMAGES_PATH, "line_vertical_w101px.png"),
|
|
"line straight vertical 101px wide failed",
|
|
)
|
|
|
|
img, draw = create_base_image_draw((20, 20))
|
|
draw.line((5, 5, 6, 14), BLACK, 2)
|
|
assert_image_equal_tofile(
|
|
img,
|
|
os.path.join(IMAGES_PATH, "line_vertical_slope1px_w2px.png"),
|
|
"line vertical 1px slope 2px wide failed",
|
|
)
|
|
|
|
|
|
def test_line_oblique_45():
|
|
expected = os.path.join(IMAGES_PATH, "line_oblique_45_w3px_a.png")
|
|
img, draw = create_base_image_draw((20, 20))
|
|
draw.line((5, 5, 14, 14), BLACK, 3)
|
|
assert_image_equal_tofile(img, expected, "line oblique 45 normal 3px wide A failed")
|
|
img, draw = create_base_image_draw((20, 20))
|
|
draw.line((14, 14, 5, 5), BLACK, 3)
|
|
assert_image_equal_tofile(
|
|
img, expected, "line oblique 45 inverted 3px wide A failed"
|
|
)
|
|
|
|
expected = os.path.join(IMAGES_PATH, "line_oblique_45_w3px_b.png")
|
|
img, draw = create_base_image_draw((20, 20))
|
|
draw.line((14, 5, 5, 14), BLACK, 3)
|
|
assert_image_equal_tofile(img, expected, "line oblique 45 normal 3px wide B failed")
|
|
img, draw = create_base_image_draw((20, 20))
|
|
draw.line((5, 14, 14, 5), BLACK, 3)
|
|
assert_image_equal_tofile(
|
|
img, expected, "line oblique 45 inverted 3px wide B failed"
|
|
)
|
|
|
|
|
|
def test_wide_line_dot():
|
|
# 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)
|
|
|
|
# Act
|
|
draw.line([(50, 50), (50, 50)], width=3)
|
|
|
|
# Assert
|
|
assert_image_similar_tofile(im, "Tests/images/imagedraw_wide_line_dot.png", 1)
|
|
|
|
|
|
def test_wide_line_larger_than_int():
|
|
# Arrange
|
|
im = Image.new("RGB", (W, H))
|
|
draw = ImageDraw.Draw(im)
|
|
expected = "Tests/images/imagedraw_wide_line_larger_than_int.png"
|
|
|
|
# Act
|
|
draw.line([(0, 0), (32768, 32768)], width=3)
|
|
|
|
# Assert
|
|
assert_image_similar_tofile(im, expected, 1)
|
|
|
|
|
|
@pytest.mark.parametrize(
|
|
"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),
|
|
],
|
|
(
|
|
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,
|
|
),
|
|
[
|
|
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,
|
|
],
|
|
],
|
|
)
|
|
def test_line_joint(xy):
|
|
im = Image.new("RGB", (500, 325))
|
|
draw = ImageDraw.Draw(im)
|
|
|
|
# Act
|
|
draw.line(xy, GRAY, 50, "curve")
|
|
|
|
# Assert
|
|
assert_image_similar_tofile(im, "Tests/images/imagedraw_line_joint_curve.png", 3)
|
|
|
|
|
|
def test_textsize_empty_string():
|
|
# 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")
|
|
|
|
|
|
@skip_unless_feature("freetype2")
|
|
def test_textsize_stroke():
|
|
# Arrange
|
|
im = Image.new("RGB", (W, H))
|
|
draw = ImageDraw.Draw(im)
|
|
font = ImageFont.truetype("Tests/fonts/FreeMono.ttf", 20)
|
|
|
|
# Act / Assert
|
|
assert draw.textsize("A", font, stroke_width=2) == (16, 20)
|
|
assert draw.multiline_textsize("ABC\nAaaa", font, stroke_width=2) == (52, 44)
|
|
|
|
|
|
@skip_unless_feature("freetype2")
|
|
def test_stroke():
|
|
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((12, 12), "A", "#f00", font, stroke_width=2, stroke_fill=stroke_fill)
|
|
|
|
# Assert
|
|
assert_image_similar_tofile(
|
|
im, "Tests/images/imagedraw_stroke_" + suffix + ".png", 3.1
|
|
)
|
|
|
|
|
|
@skip_unless_feature("freetype2")
|
|
def test_stroke_descender():
|
|
# Arrange
|
|
im = Image.new("RGB", (120, 130))
|
|
draw = ImageDraw.Draw(im)
|
|
font = ImageFont.truetype("Tests/fonts/FreeMono.ttf", 120)
|
|
|
|
# Act
|
|
draw.text((12, 2), "y", "#f00", font, stroke_width=2, stroke_fill="#0f0")
|
|
|
|
# Assert
|
|
assert_image_similar_tofile(im, "Tests/images/imagedraw_stroke_descender.png", 6.76)
|
|
|
|
|
|
@skip_unless_feature("freetype2")
|
|
def test_stroke_multiline():
|
|
# Arrange
|
|
im = Image.new("RGB", (100, 250))
|
|
draw = ImageDraw.Draw(im)
|
|
font = ImageFont.truetype("Tests/fonts/FreeMono.ttf", 120)
|
|
|
|
# Act
|
|
draw.multiline_text(
|
|
(12, 12), "A\nB", "#f00", font, stroke_width=2, stroke_fill="#0f0"
|
|
)
|
|
|
|
# Assert
|
|
assert_image_similar_tofile(im, "Tests/images/imagedraw_stroke_multiline.png", 3.3)
|
|
|
|
|
|
def test_same_color_outline():
|
|
# 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 = f"Tests/images/imagedraw_outline_{operation}_{mode}.png"
|
|
assert_image_similar_tofile(im, expected, 1)
|
|
|
|
|
|
@pytest.mark.parametrize(
|
|
"n_sides, rotation, polygon_name",
|
|
[(4, 0, "square"), (8, 0, "regular_octagon"), (4, 45, "square")],
|
|
)
|
|
def test_draw_regular_polygon(n_sides, rotation, polygon_name):
|
|
im = Image.new("RGBA", size=(W, H), color=(255, 0, 0, 0))
|
|
filename_base = f"Tests/images/imagedraw_{polygon_name}"
|
|
filename = (
|
|
f"{filename_base}.png"
|
|
if rotation == 0
|
|
else f"{filename_base}_rotate_{rotation}.png"
|
|
)
|
|
draw = ImageDraw.Draw(im)
|
|
bounding_circle = ((W // 2, H // 2), 25)
|
|
draw.regular_polygon(bounding_circle, n_sides, rotation=rotation, fill="red")
|
|
assert_image_equal_tofile(im, filename)
|
|
|
|
|
|
@pytest.mark.parametrize(
|
|
"n_sides, expected_vertices",
|
|
[
|
|
(3, [(28.35, 62.5), (71.65, 62.5), (50.0, 25.0)]),
|
|
(4, [(32.32, 67.68), (67.68, 67.68), (67.68, 32.32), (32.32, 32.32)]),
|
|
(
|
|
5,
|
|
[
|
|
(35.31, 70.23),
|
|
(64.69, 70.23),
|
|
(73.78, 42.27),
|
|
(50.0, 25.0),
|
|
(26.22, 42.27),
|
|
],
|
|
),
|
|
(
|
|
6,
|
|
[
|
|
(37.5, 71.65),
|
|
(62.5, 71.65),
|
|
(75.0, 50.0),
|
|
(62.5, 28.35),
|
|
(37.5, 28.35),
|
|
(25.0, 50.0),
|
|
],
|
|
),
|
|
],
|
|
)
|
|
def test_compute_regular_polygon_vertices(n_sides, expected_vertices):
|
|
bounding_circle = (W // 2, H // 2, 25)
|
|
vertices = ImageDraw._compute_regular_polygon_vertices(bounding_circle, n_sides, 0)
|
|
assert vertices == expected_vertices
|
|
|
|
|
|
@pytest.mark.parametrize(
|
|
"n_sides, bounding_circle, rotation, expected_error, error_message",
|
|
[
|
|
(None, (50, 50, 25), 0, TypeError, "n_sides should be an int"),
|
|
(1, (50, 50, 25), 0, ValueError, "n_sides should be an int > 2"),
|
|
(3, 50, 0, TypeError, "bounding_circle should be a tuple"),
|
|
(
|
|
3,
|
|
(50, 50, 100, 100),
|
|
0,
|
|
ValueError,
|
|
"bounding_circle should contain 2D coordinates "
|
|
"and a radius (e.g. (x, y, r) or ((x, y), r) )",
|
|
),
|
|
(
|
|
3,
|
|
(50, 50, "25"),
|
|
0,
|
|
ValueError,
|
|
"bounding_circle should only contain numeric data",
|
|
),
|
|
(
|
|
3,
|
|
((50, 50, 50), 25),
|
|
0,
|
|
ValueError,
|
|
"bounding_circle centre should contain 2D coordinates (e.g. (x, y))",
|
|
),
|
|
(
|
|
3,
|
|
(50, 50, 0),
|
|
0,
|
|
ValueError,
|
|
"bounding_circle radius should be > 0",
|
|
),
|
|
(
|
|
3,
|
|
(50, 50, 25),
|
|
"0",
|
|
ValueError,
|
|
"rotation should be an int or float",
|
|
),
|
|
],
|
|
)
|
|
def test_compute_regular_polygon_vertices_input_error_handling(
|
|
n_sides, bounding_circle, rotation, expected_error, error_message
|
|
):
|
|
with pytest.raises(expected_error) as e:
|
|
ImageDraw._compute_regular_polygon_vertices(bounding_circle, n_sides, rotation)
|
|
assert str(e.value) == error_message
|