mirror of
https://github.com/python-pillow/Pillow.git
synced 2024-09-20 19:08:58 +03:00
386 lines
14 KiB
Python
386 lines
14 KiB
Python
from __future__ import annotations
|
|
|
|
import pytest
|
|
|
|
from PIL import Image, ImageDraw, ImageFont
|
|
|
|
from .helper import assert_image_similar_tofile, skip_unless_feature
|
|
|
|
FONT_SIZE = 20
|
|
FONT_PATH = "Tests/fonts/DejaVuSans/DejaVuSans.ttf"
|
|
|
|
pytestmark = skip_unless_feature("raqm")
|
|
|
|
|
|
def test_english() -> None:
|
|
# smoke test, this should not fail
|
|
ttf = ImageFont.truetype(FONT_PATH, FONT_SIZE)
|
|
im = Image.new(mode="RGB", size=(300, 100))
|
|
draw = ImageDraw.Draw(im)
|
|
draw.text((0, 0), "TEST", font=ttf, fill=500, direction="ltr")
|
|
|
|
|
|
def test_complex_text() -> None:
|
|
ttf = ImageFont.truetype(FONT_PATH, FONT_SIZE)
|
|
|
|
im = Image.new(mode="RGB", size=(300, 100))
|
|
draw = ImageDraw.Draw(im)
|
|
draw.text((0, 0), "اهلا عمان", font=ttf, fill=500)
|
|
|
|
target = "Tests/images/test_text.png"
|
|
assert_image_similar_tofile(im, target, 0.5)
|
|
|
|
|
|
def test_y_offset() -> None:
|
|
ttf = ImageFont.truetype("Tests/fonts/NotoNastaliqUrdu-Regular.ttf", FONT_SIZE)
|
|
|
|
im = Image.new(mode="RGB", size=(300, 100))
|
|
draw = ImageDraw.Draw(im)
|
|
draw.text((0, 0), "العالم العربي", font=ttf, fill=500)
|
|
|
|
target = "Tests/images/test_y_offset.png"
|
|
assert_image_similar_tofile(im, target, 1.7)
|
|
|
|
|
|
def test_complex_unicode_text() -> None:
|
|
ttf = ImageFont.truetype(FONT_PATH, FONT_SIZE)
|
|
|
|
im = Image.new(mode="RGB", size=(300, 100))
|
|
draw = ImageDraw.Draw(im)
|
|
draw.text((0, 0), "السلام عليكم", font=ttf, fill=500)
|
|
|
|
target = "Tests/images/test_complex_unicode_text.png"
|
|
assert_image_similar_tofile(im, target, 0.5)
|
|
|
|
ttf = ImageFont.truetype("Tests/fonts/KhmerOSBattambang-Regular.ttf", FONT_SIZE)
|
|
|
|
im = Image.new(mode="RGB", size=(300, 100))
|
|
draw = ImageDraw.Draw(im)
|
|
draw.text((0, 0), "លោកុប្បត្តិ", font=ttf, fill=500)
|
|
|
|
target = "Tests/images/test_complex_unicode_text2.png"
|
|
assert_image_similar_tofile(im, target, 2.33)
|
|
|
|
|
|
def test_text_direction_rtl() -> None:
|
|
ttf = ImageFont.truetype(FONT_PATH, FONT_SIZE)
|
|
|
|
im = Image.new(mode="RGB", size=(300, 100))
|
|
draw = ImageDraw.Draw(im)
|
|
draw.text((0, 0), "English عربي", font=ttf, fill=500, direction="rtl")
|
|
|
|
target = "Tests/images/test_direction_rtl.png"
|
|
assert_image_similar_tofile(im, target, 0.5)
|
|
|
|
|
|
def test_text_direction_ltr() -> None:
|
|
ttf = ImageFont.truetype(FONT_PATH, FONT_SIZE)
|
|
|
|
im = Image.new(mode="RGB", size=(300, 100))
|
|
draw = ImageDraw.Draw(im)
|
|
draw.text((0, 0), "سلطنة عمان Oman", font=ttf, fill=500, direction="ltr")
|
|
|
|
target = "Tests/images/test_direction_ltr.png"
|
|
assert_image_similar_tofile(im, target, 0.5)
|
|
|
|
|
|
def test_text_direction_rtl2() -> None:
|
|
ttf = ImageFont.truetype(FONT_PATH, FONT_SIZE)
|
|
|
|
im = Image.new(mode="RGB", size=(300, 100))
|
|
draw = ImageDraw.Draw(im)
|
|
draw.text((0, 0), "Oman سلطنة عمان", font=ttf, fill=500, direction="rtl")
|
|
|
|
target = "Tests/images/test_direction_ltr.png"
|
|
assert_image_similar_tofile(im, target, 0.5)
|
|
|
|
|
|
def test_text_direction_ttb() -> None:
|
|
ttf = ImageFont.truetype("Tests/fonts/NotoSansJP-Regular.otf", FONT_SIZE)
|
|
|
|
im = Image.new(mode="RGB", size=(100, 300))
|
|
draw = ImageDraw.Draw(im)
|
|
try:
|
|
draw.text((0, 0), "English あい", font=ttf, fill=500, direction="ttb")
|
|
except ValueError as ex:
|
|
if str(ex) == "libraqm 0.7 or greater required for 'ttb' direction":
|
|
pytest.skip("libraqm 0.7 or greater not available")
|
|
|
|
target = "Tests/images/test_direction_ttb.png"
|
|
assert_image_similar_tofile(im, target, 2.8)
|
|
|
|
|
|
def test_text_direction_ttb_stroke() -> None:
|
|
ttf = ImageFont.truetype("Tests/fonts/NotoSansJP-Regular.otf", 50)
|
|
|
|
im = Image.new(mode="RGB", size=(100, 300))
|
|
draw = ImageDraw.Draw(im)
|
|
try:
|
|
draw.text(
|
|
(27, 27),
|
|
"あい",
|
|
font=ttf,
|
|
fill=500,
|
|
direction="ttb",
|
|
stroke_width=2,
|
|
stroke_fill="#0f0",
|
|
)
|
|
except ValueError as ex:
|
|
if str(ex) == "libraqm 0.7 or greater required for 'ttb' direction":
|
|
pytest.skip("libraqm 0.7 or greater not available")
|
|
|
|
target = "Tests/images/test_direction_ttb_stroke.png"
|
|
assert_image_similar_tofile(im, target, 19.4)
|
|
|
|
|
|
def test_ligature_features() -> None:
|
|
ttf = ImageFont.truetype(FONT_PATH, FONT_SIZE)
|
|
|
|
im = Image.new(mode="RGB", size=(300, 100))
|
|
draw = ImageDraw.Draw(im)
|
|
draw.text((0, 0), "filling", font=ttf, fill=500, features=["-liga"])
|
|
target = "Tests/images/test_ligature_features.png"
|
|
assert_image_similar_tofile(im, target, 0.5)
|
|
|
|
liga_bbox = ttf.getbbox("fi", features=["-liga"])
|
|
assert liga_bbox == (0, 4, 13, 19)
|
|
|
|
|
|
def test_kerning_features() -> None:
|
|
ttf = ImageFont.truetype(FONT_PATH, FONT_SIZE)
|
|
|
|
im = Image.new(mode="RGB", size=(300, 100))
|
|
draw = ImageDraw.Draw(im)
|
|
draw.text((0, 0), "TeToAV", font=ttf, fill=500, features=["-kern"])
|
|
|
|
target = "Tests/images/test_kerning_features.png"
|
|
assert_image_similar_tofile(im, target, 0.5)
|
|
|
|
|
|
def test_arabictext_features() -> None:
|
|
ttf = ImageFont.truetype(FONT_PATH, FONT_SIZE)
|
|
|
|
im = Image.new(mode="RGB", size=(300, 100))
|
|
draw = ImageDraw.Draw(im)
|
|
draw.text(
|
|
(0, 0),
|
|
"اللغة العربية",
|
|
font=ttf,
|
|
fill=500,
|
|
features=["-fina", "-init", "-medi"],
|
|
)
|
|
|
|
target = "Tests/images/test_arabictext_features.png"
|
|
assert_image_similar_tofile(im, target, 0.5)
|
|
|
|
|
|
def test_x_max_and_y_offset() -> None:
|
|
ttf = ImageFont.truetype("Tests/fonts/ArefRuqaa-Regular.ttf", 40)
|
|
|
|
im = Image.new(mode="RGB", size=(50, 100))
|
|
draw = ImageDraw.Draw(im)
|
|
draw.text((0, 0), "لح", font=ttf, fill=500)
|
|
|
|
target = "Tests/images/test_x_max_and_y_offset.png"
|
|
assert_image_similar_tofile(im, target, 0.5)
|
|
|
|
|
|
def test_language() -> None:
|
|
ttf = ImageFont.truetype(FONT_PATH, FONT_SIZE)
|
|
|
|
im = Image.new(mode="RGB", size=(300, 100))
|
|
draw = ImageDraw.Draw(im)
|
|
draw.text((0, 0), "абвг", font=ttf, fill=500, language="sr")
|
|
|
|
target = "Tests/images/test_language.png"
|
|
assert_image_similar_tofile(im, target, 0.5)
|
|
|
|
|
|
@pytest.mark.parametrize("mode", ("L", "1"))
|
|
@pytest.mark.parametrize(
|
|
"text, direction, expected",
|
|
(
|
|
("سلطنة عمان Oman", None, 173.703125),
|
|
("سلطنة عمان Oman", "ltr", 173.703125),
|
|
("Oman سلطنة عمان", "rtl", 173.703125),
|
|
("English عربي", "rtl", 123.796875),
|
|
("test", "ttb", 80.0),
|
|
),
|
|
ids=("None", "ltr", "rtl2", "rtl", "ttb"),
|
|
)
|
|
def test_getlength(
|
|
mode: str, text: str, direction: str | None, expected: float
|
|
) -> None:
|
|
ttf = ImageFont.truetype(FONT_PATH, FONT_SIZE)
|
|
im = Image.new(mode, (1, 1), 0)
|
|
d = ImageDraw.Draw(im)
|
|
|
|
try:
|
|
assert d.textlength(text, ttf, direction) == expected
|
|
except ValueError as ex:
|
|
if (
|
|
direction == "ttb"
|
|
and str(ex) == "libraqm 0.7 or greater required for 'ttb' direction"
|
|
):
|
|
pytest.skip("libraqm 0.7 or greater not available")
|
|
|
|
|
|
@pytest.mark.parametrize("mode", ("L", "1"))
|
|
@pytest.mark.parametrize("direction", ("ltr", "ttb"))
|
|
@pytest.mark.parametrize(
|
|
"text",
|
|
("i" + ("\u030C" * 15) + "i", "i" + "\u032C" * 15 + "i", "\u035Cii", "i\u0305i"),
|
|
ids=("caron-above", "caron-below", "double-breve", "overline"),
|
|
)
|
|
def test_getlength_combine(mode: str, direction: str, text: str) -> None:
|
|
if text == "i\u0305i" and direction == "ttb":
|
|
pytest.skip("fails with this font")
|
|
|
|
ttf = ImageFont.truetype("Tests/fonts/NotoSans-Regular.ttf", 48)
|
|
|
|
try:
|
|
target = ttf.getlength("ii", mode, direction)
|
|
actual = ttf.getlength(text, mode, direction)
|
|
|
|
assert actual == target
|
|
except ValueError as ex:
|
|
if (
|
|
direction == "ttb"
|
|
and str(ex) == "libraqm 0.7 or greater required for 'ttb' direction"
|
|
):
|
|
pytest.skip("libraqm 0.7 or greater not available")
|
|
|
|
|
|
@pytest.mark.parametrize("anchor", ("lt", "mm", "rb", "sm"))
|
|
def test_anchor_ttb(anchor: str) -> None:
|
|
text = "f"
|
|
path = f"Tests/images/test_anchor_ttb_{text}_{anchor}.png"
|
|
f = ImageFont.truetype("Tests/fonts/NotoSans-Regular.ttf", 120)
|
|
|
|
im = Image.new("RGB", (200, 400), "white")
|
|
d = ImageDraw.Draw(im)
|
|
d.line(((0, 200), (200, 200)), "gray")
|
|
d.line(((100, 0), (100, 400)), "gray")
|
|
try:
|
|
d.text((100, 200), text, fill="black", anchor=anchor, direction="ttb", font=f)
|
|
except ValueError as ex:
|
|
if str(ex) == "libraqm 0.7 or greater required for 'ttb' direction":
|
|
pytest.skip("libraqm 0.7 or greater not available")
|
|
|
|
assert_image_similar_tofile(im, path, 1) # fails at 5
|
|
|
|
|
|
combine_tests = (
|
|
# extends above (e.g. issue #4553)
|
|
("caron", "a\u030C\u030C\u030C\u030C\u030Cb", None, None, 0.08),
|
|
("caron_la", "a\u030C\u030C\u030C\u030C\u030Cb", "la", None, 0.08),
|
|
("caron_lt", "a\u030C\u030C\u030C\u030C\u030Cb", "lt", None, 0.08),
|
|
("caron_ls", "a\u030C\u030C\u030C\u030C\u030Cb", "ls", None, 0.08),
|
|
("caron_ttb", "ca" + ("\u030C" * 15) + "b", None, "ttb", 0.3),
|
|
("caron_ttb_lt", "ca" + ("\u030C" * 15) + "b", "lt", "ttb", 0.3),
|
|
# extends below
|
|
("caron_below", "a\u032C\u032C\u032C\u032C\u032Cb", None, None, 0.02),
|
|
("caron_below_ld", "a\u032C\u032C\u032C\u032C\u032Cb", "ld", None, 0.02),
|
|
("caron_below_lb", "a\u032C\u032C\u032C\u032C\u032Cb", "lb", None, 0.02),
|
|
("caron_below_ls", "a\u032C\u032C\u032C\u032C\u032Cb", "ls", None, 0.02),
|
|
("caron_below_ttb", "a" + ("\u032C" * 15) + "b", None, "ttb", 0.03),
|
|
("caron_below_ttb_lb", "a" + ("\u032C" * 15) + "b", "lb", "ttb", 0.03),
|
|
# extends to the right (e.g. issue #3745)
|
|
("double_breve_below", "a\u035Ci", None, None, 0.02),
|
|
("double_breve_below_ma", "a\u035Ci", "ma", None, 0.02),
|
|
("double_breve_below_ra", "a\u035Ci", "ra", None, 0.02),
|
|
("double_breve_below_ttb", "a\u035Cb", None, "ttb", 0.02),
|
|
("double_breve_below_ttb_rt", "a\u035Cb", "rt", "ttb", 0.02),
|
|
("double_breve_below_ttb_mt", "a\u035Cb", "mt", "ttb", 0.02),
|
|
("double_breve_below_ttb_st", "a\u035Cb", "st", "ttb", 0.02),
|
|
# extends to the left (fail=0.064)
|
|
("overline", "i\u0305", None, None, 0.02),
|
|
("overline_la", "i\u0305", "la", None, 0.02),
|
|
("overline_ra", "i\u0305", "ra", None, 0.02),
|
|
("overline_ttb", "i\u0305", None, "ttb", 0.02),
|
|
("overline_ttb_rt", "i\u0305", "rt", "ttb", 0.02),
|
|
("overline_ttb_mt", "i\u0305", "mt", "ttb", 0.02),
|
|
("overline_ttb_st", "i\u0305", "st", "ttb", 0.02),
|
|
)
|
|
|
|
|
|
# this tests various combining characters for anchor alignment and clipping
|
|
@pytest.mark.parametrize(
|
|
"name, text, anchor, dir, epsilon", combine_tests, ids=[r[0] for r in combine_tests]
|
|
)
|
|
def test_combine(
|
|
name: str, text: str, dir: str | None, anchor: str | None, epsilon: float
|
|
) -> None:
|
|
path = f"Tests/images/test_combine_{name}.png"
|
|
f = ImageFont.truetype("Tests/fonts/NotoSans-Regular.ttf", 48)
|
|
|
|
im = Image.new("RGB", (400, 400), "white")
|
|
d = ImageDraw.Draw(im)
|
|
d.line(((0, 200), (400, 200)), "gray")
|
|
d.line(((200, 0), (200, 400)), "gray")
|
|
try:
|
|
d.text((200, 200), text, fill="black", anchor=anchor, direction=dir, font=f)
|
|
except ValueError as ex:
|
|
if str(ex) == "libraqm 0.7 or greater required for 'ttb' direction":
|
|
pytest.skip("libraqm 0.7 or greater not available")
|
|
|
|
assert_image_similar_tofile(im, path, epsilon)
|
|
|
|
|
|
@pytest.mark.parametrize(
|
|
"anchor, align",
|
|
(
|
|
("lm", "left"), # pass with getsize
|
|
("lm", "center"), # fail at 2.12
|
|
("lm", "right"), # fail at 2.57
|
|
("mm", "left"), # fail at 2.12
|
|
("mm", "center"), # pass with getsize
|
|
("mm", "right"), # fail at 2.12
|
|
("rm", "left"), # fail at 2.57
|
|
("rm", "center"), # fail at 2.12
|
|
("rm", "right"), # pass with getsize
|
|
),
|
|
)
|
|
def test_combine_multiline(anchor: str, align: str) -> None:
|
|
# test that multiline text uses getlength, not getsize or getbbox
|
|
|
|
path = f"Tests/images/test_combine_multiline_{anchor}_{align}.png"
|
|
f = ImageFont.truetype("Tests/fonts/NotoSans-Regular.ttf", 48)
|
|
text = "i\u0305\u035C\ntext" # i with overline and double breve, and a word
|
|
|
|
im = Image.new("RGB", (400, 400), "white")
|
|
d = ImageDraw.Draw(im)
|
|
d.line(((0, 200), (400, 200)), "gray")
|
|
d.line(((200, 0), (200, 400)), "gray")
|
|
bbox = d.multiline_textbbox((200, 200), text, anchor=anchor, font=f, align=align)
|
|
d.rectangle(bbox, outline="red")
|
|
d.multiline_text((200, 200), text, fill="black", anchor=anchor, font=f, align=align)
|
|
|
|
assert_image_similar_tofile(im, path, 0.015)
|
|
|
|
|
|
def test_anchor_invalid_ttb() -> None:
|
|
font = ImageFont.truetype(FONT_PATH, FONT_SIZE)
|
|
im = Image.new("RGB", (100, 100), "white")
|
|
d = ImageDraw.Draw(im)
|
|
d.font = font
|
|
|
|
for anchor in ["", "l", "a", "lax", "xa", "la", "ls", "ld", "lx"]:
|
|
with pytest.raises(ValueError):
|
|
font.getmask2("hello", anchor=anchor, direction="ttb")
|
|
with pytest.raises(ValueError):
|
|
font.getbbox("hello", anchor=anchor, direction="ttb")
|
|
with pytest.raises(ValueError):
|
|
d.text((0, 0), "hello", anchor=anchor, direction="ttb")
|
|
with pytest.raises(ValueError):
|
|
d.textbbox((0, 0), "hello", anchor=anchor, direction="ttb")
|
|
with pytest.raises(ValueError):
|
|
d.multiline_text((0, 0), "foo\nbar", anchor=anchor, direction="ttb")
|
|
with pytest.raises(ValueError):
|
|
d.multiline_textbbox((0, 0), "foo\nbar", anchor=anchor, direction="ttb")
|
|
# ttb multiline text does not support anchors at all
|
|
with pytest.raises(ValueError):
|
|
d.multiline_text((0, 0), "foo\nbar", anchor="mm", direction="ttb")
|
|
with pytest.raises(ValueError):
|
|
d.multiline_textbbox((0, 0), "foo\nbar", anchor="mm", direction="ttb")
|