import os.path from PIL import Image, ImageDraw, ImageDraw2 from .helper import ( assert_image_equal, assert_image_similar, hopper, skip_unless_feature, ) BLACK = (0, 0, 0) WHITE = (255, 255, 255) GRAY = (190, 190, 190) DEFAULT_MODE = "RGB" IMAGES_PATH = os.path.join("Tests", "images", "imagedraw") # Image size W, H = 100, 100 # Bounding box points X0 = int(W / 4) X1 = int(X0 * 3) Y0 = int(H / 4) Y1 = int(X0 * 3) # Two kinds of bounding box BBOX1 = [(X0, Y0), (X1, Y1)] BBOX2 = [X0, Y0, X1, Y1] # Two kinds of coordinate sequences POINTS1 = [(10, 10), (20, 40), (30, 30)] POINTS2 = [10, 10, 20, 40, 30, 30] KITE_POINTS = [(10, 50), (70, 10), (90, 50), (70, 90), (10, 50)] FONT_PATH = "Tests/fonts/FreeMono.ttf" def test_sanity(): im = hopper("RGB").copy() draw = ImageDraw2.Draw(im) pen = ImageDraw2.Pen("blue", width=7) draw.line(list(range(10)), pen) draw, handler = ImageDraw.getdraw(im) pen = ImageDraw2.Pen("blue", width=7) draw.line(list(range(10)), pen) def helper_ellipse(mode, bbox): # Arrange im = Image.new("RGB", (W, H)) draw = ImageDraw2.Draw(im) pen = ImageDraw2.Pen("blue", width=2) brush = ImageDraw2.Brush("green") expected = "Tests/images/imagedraw_ellipse_{}.png".format(mode) # Act draw.ellipse(bbox, pen, brush) # Assert assert_image_similar(im, Image.open(expected), 1) def test_ellipse1(): helper_ellipse("RGB", BBOX1) def test_ellipse2(): helper_ellipse("RGB", BBOX2) def test_ellipse_edge(): # Arrange im = Image.new("RGB", (W, H)) draw = ImageDraw2.Draw(im) brush = ImageDraw2.Brush("white") # Act draw.ellipse(((0, 0), (W - 1, H)), brush) # Assert assert_image_similar(im, Image.open("Tests/images/imagedraw_ellipse_edge.png"), 1) def helper_line(points): # Arrange im = Image.new("RGB", (W, H)) draw = ImageDraw2.Draw(im) pen = ImageDraw2.Pen("yellow", width=2) # Act draw.line(points, pen) # Assert assert_image_equal(im, Image.open("Tests/images/imagedraw_line.png")) def test_line1_pen(): helper_line(POINTS1) def test_line2_pen(): helper_line(POINTS2) def test_line_pen_as_brush(): # Arrange im = Image.new("RGB", (W, H)) draw = ImageDraw2.Draw(im) pen = None brush = ImageDraw2.Pen("yellow", width=2) # Act # Pass in the pen as the brush parameter draw.line(POINTS1, pen, brush) # Assert assert_image_equal(im, Image.open("Tests/images/imagedraw_line.png")) def helper_polygon(points): # Arrange im = Image.new("RGB", (W, H)) draw = ImageDraw2.Draw(im) pen = ImageDraw2.Pen("blue", width=2) brush = ImageDraw2.Brush("red") # Act draw.polygon(points, pen, brush) # Assert assert_image_equal(im, Image.open("Tests/images/imagedraw_polygon.png")) def test_polygon1(): helper_polygon(POINTS1) def test_polygon2(): helper_polygon(POINTS2) def helper_rectangle(bbox): # Arrange im = Image.new("RGB", (W, H)) draw = ImageDraw2.Draw(im) pen = ImageDraw2.Pen("green", width=2) brush = ImageDraw2.Brush("black") # Act draw.rectangle(bbox, pen, brush) # Assert assert_image_equal(im, Image.open("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)] brush = ImageDraw2.Brush("orange") draw = ImageDraw2.Draw(im) expected = "Tests/images/imagedraw_big_rectangle.png" # Act draw.rectangle(bbox, brush) # Assert assert_image_similar(im, Image.open(expected), 1) @skip_unless_feature("freetype2") def test_text(): # Arrange im = Image.new("RGB", (W, H)) draw = ImageDraw2.Draw(im) font = ImageDraw2.Font("white", FONT_PATH) expected = "Tests/images/imagedraw2_text.png" # Act draw.text((5, 5), "ImageDraw2", font) # Assert assert_image_similar(im, Image.open(expected), 13) @skip_unless_feature("freetype2") def test_textsize(): # Arrange im = Image.new("RGB", (W, H)) draw = ImageDraw2.Draw(im) font = ImageDraw2.Font("white", FONT_PATH) # Act size = draw.textsize("ImageDraw2", font) # Assert assert size[1] == 12 @skip_unless_feature("freetype2") def test_textsize_empty_string(): # Arrange im = Image.new("RGB", (W, H)) draw = ImageDraw2.Draw(im) font = ImageDraw2.Font("white", FONT_PATH) # Act # Should not cause 'SystemError: returned NULL without setting an error' draw.textsize("", font) draw.textsize("\n", font) draw.textsize("test\n", font) @skip_unless_feature("freetype2") def test_flush(): # Arrange im = Image.new("RGB", (W, H)) draw = ImageDraw2.Draw(im) font = ImageDraw2.Font("white", FONT_PATH) # Act draw.text((5, 5), "ImageDraw2", font) im2 = draw.flush() # Assert assert_image_equal(im, im2)