mirror of
https://github.com/python-pillow/Pillow.git
synced 2024-11-10 19:56:47 +03:00
727 lines
24 KiB
Python
727 lines
24 KiB
Python
import copy
|
||
import distutils.version
|
||
import os
|
||
import re
|
||
import shutil
|
||
import sys
|
||
from io import BytesIO
|
||
|
||
import pytest
|
||
from PIL import Image, ImageDraw, ImageFont
|
||
|
||
from .helper import (
|
||
assert_image_equal,
|
||
assert_image_similar,
|
||
assert_image_similar_tofile,
|
||
is_pypy,
|
||
is_win32,
|
||
skip_unless_feature,
|
||
)
|
||
|
||
FONT_PATH = "Tests/fonts/FreeMono.ttf"
|
||
FONT_SIZE = 20
|
||
|
||
TEST_TEXT = "hey you\nyou are awesome\nthis looks awkward"
|
||
|
||
|
||
pytestmark = skip_unless_feature("freetype2")
|
||
|
||
|
||
class TestImageFont:
|
||
LAYOUT_ENGINE = ImageFont.LAYOUT_BASIC
|
||
|
||
# Freetype has different metrics depending on the version.
|
||
# (and, other things, but first things first)
|
||
METRICS = {
|
||
(">=2.3", "<2.4"): {"multiline": 30, "textsize": 12, "getters": (13, 16)},
|
||
(">=2.7",): {"multiline": 6.2, "textsize": 2.5, "getters": (12, 16)},
|
||
"Default": {"multiline": 0.5, "textsize": 0.5, "getters": (12, 16)},
|
||
}
|
||
|
||
@classmethod
|
||
def setup_class(self):
|
||
freetype = distutils.version.StrictVersion(ImageFont.core.freetype2_version)
|
||
|
||
self.metrics = self.METRICS["Default"]
|
||
for conditions, metrics in self.METRICS.items():
|
||
if not isinstance(conditions, tuple):
|
||
continue
|
||
|
||
for condition in conditions:
|
||
version = re.sub("[<=>]", "", condition)
|
||
if (condition.startswith(">=") and freetype >= version) or (
|
||
condition.startswith("<") and freetype < version
|
||
):
|
||
# Condition was met
|
||
continue
|
||
|
||
# Condition failed
|
||
break
|
||
else:
|
||
# All conditions were met
|
||
self.metrics = metrics
|
||
|
||
def get_font(self):
|
||
return ImageFont.truetype(
|
||
FONT_PATH, FONT_SIZE, layout_engine=self.LAYOUT_ENGINE
|
||
)
|
||
|
||
def test_sanity(self):
|
||
assert re.search(r"\d+\.\d+\.\d+$", ImageFont.core.freetype2_version)
|
||
|
||
def test_font_properties(self):
|
||
ttf = self.get_font()
|
||
assert ttf.path == FONT_PATH
|
||
assert ttf.size == FONT_SIZE
|
||
|
||
ttf_copy = ttf.font_variant()
|
||
assert ttf_copy.path == FONT_PATH
|
||
assert ttf_copy.size == FONT_SIZE
|
||
|
||
ttf_copy = ttf.font_variant(size=FONT_SIZE + 1)
|
||
assert ttf_copy.size == FONT_SIZE + 1
|
||
|
||
second_font_path = "Tests/fonts/DejaVuSans.ttf"
|
||
ttf_copy = ttf.font_variant(font=second_font_path)
|
||
assert ttf_copy.path == second_font_path
|
||
|
||
def test_font_with_name(self):
|
||
self.get_font()
|
||
self._render(FONT_PATH)
|
||
|
||
def _font_as_bytes(self):
|
||
with open(FONT_PATH, "rb") as f:
|
||
font_bytes = BytesIO(f.read())
|
||
return font_bytes
|
||
|
||
def test_font_with_filelike(self):
|
||
ImageFont.truetype(
|
||
self._font_as_bytes(), FONT_SIZE, layout_engine=self.LAYOUT_ENGINE
|
||
)
|
||
self._render(self._font_as_bytes())
|
||
# Usage note: making two fonts from the same buffer fails.
|
||
# shared_bytes = self._font_as_bytes()
|
||
# self._render(shared_bytes)
|
||
# with pytest.raises(Exception):
|
||
# _render(shared_bytes)
|
||
|
||
def test_font_with_open_file(self):
|
||
with open(FONT_PATH, "rb") as f:
|
||
self._render(f)
|
||
|
||
def test_non_unicode_path(self, tmp_path):
|
||
tempfile = str(tmp_path / ("temp_" + chr(128) + ".ttf"))
|
||
try:
|
||
shutil.copy(FONT_PATH, tempfile)
|
||
except UnicodeEncodeError:
|
||
pytest.skip("Unicode path could not be created")
|
||
|
||
ImageFont.truetype(tempfile, FONT_SIZE)
|
||
|
||
def test_unavailable_layout_engine(self):
|
||
have_raqm = ImageFont.core.HAVE_RAQM
|
||
ImageFont.core.HAVE_RAQM = False
|
||
|
||
try:
|
||
ttf = ImageFont.truetype(
|
||
FONT_PATH, FONT_SIZE, layout_engine=ImageFont.LAYOUT_RAQM
|
||
)
|
||
finally:
|
||
ImageFont.core.HAVE_RAQM = have_raqm
|
||
|
||
assert ttf.layout_engine == ImageFont.LAYOUT_BASIC
|
||
|
||
def _render(self, font):
|
||
txt = "Hello World!"
|
||
ttf = ImageFont.truetype(font, FONT_SIZE, layout_engine=self.LAYOUT_ENGINE)
|
||
ttf.getsize(txt)
|
||
|
||
img = Image.new("RGB", (256, 64), "white")
|
||
d = ImageDraw.Draw(img)
|
||
d.text((10, 10), txt, font=ttf, fill="black")
|
||
|
||
return img
|
||
|
||
def test_render_equal(self):
|
||
img_path = self._render(FONT_PATH)
|
||
with open(FONT_PATH, "rb") as f:
|
||
font_filelike = BytesIO(f.read())
|
||
img_filelike = self._render(font_filelike)
|
||
|
||
assert_image_equal(img_path, img_filelike)
|
||
|
||
def test_textsize_equal(self):
|
||
im = Image.new(mode="RGB", size=(300, 100))
|
||
draw = ImageDraw.Draw(im)
|
||
ttf = self.get_font()
|
||
|
||
txt = "Hello World!"
|
||
size = draw.textsize(txt, ttf)
|
||
draw.text((10, 10), txt, font=ttf)
|
||
draw.rectangle((10, 10, 10 + size[0], 10 + size[1]))
|
||
|
||
target = "Tests/images/rectangle_surrounding_text.png"
|
||
with Image.open(target) as target_img:
|
||
|
||
# Epsilon ~.5 fails with FreeType 2.7
|
||
assert_image_similar(im, target_img, self.metrics["textsize"])
|
||
|
||
def test_render_multiline(self):
|
||
im = Image.new(mode="RGB", size=(300, 100))
|
||
draw = ImageDraw.Draw(im)
|
||
ttf = self.get_font()
|
||
line_spacing = draw.textsize("A", font=ttf)[1] + 4
|
||
lines = TEST_TEXT.split("\n")
|
||
y = 0
|
||
for line in lines:
|
||
draw.text((0, y), line, font=ttf)
|
||
y += line_spacing
|
||
|
||
target = "Tests/images/multiline_text.png"
|
||
with Image.open(target) as target_img:
|
||
|
||
# some versions of freetype have different horizontal spacing.
|
||
# setting a tight epsilon, I'm showing the original test failure
|
||
# at epsilon = ~38.
|
||
assert_image_similar(im, target_img, self.metrics["multiline"])
|
||
|
||
def test_render_multiline_text(self):
|
||
ttf = self.get_font()
|
||
|
||
# Test that text() correctly connects to multiline_text()
|
||
# and that align defaults to left
|
||
im = Image.new(mode="RGB", size=(300, 100))
|
||
draw = ImageDraw.Draw(im)
|
||
draw.text((0, 0), TEST_TEXT, font=ttf)
|
||
|
||
target = "Tests/images/multiline_text.png"
|
||
with Image.open(target) as target_img:
|
||
|
||
# Epsilon ~.5 fails with FreeType 2.7
|
||
assert_image_similar(im, target_img, self.metrics["multiline"])
|
||
|
||
# Test that text() can pass on additional arguments
|
||
# to multiline_text()
|
||
draw.text(
|
||
(0, 0), TEST_TEXT, fill=None, font=ttf, anchor=None, spacing=4, align="left"
|
||
)
|
||
draw.text((0, 0), TEST_TEXT, None, ttf, None, 4, "left")
|
||
|
||
# Test align center and right
|
||
for align, ext in {"center": "_center", "right": "_right"}.items():
|
||
im = Image.new(mode="RGB", size=(300, 100))
|
||
draw = ImageDraw.Draw(im)
|
||
draw.multiline_text((0, 0), TEST_TEXT, font=ttf, align=align)
|
||
|
||
target = "Tests/images/multiline_text" + ext + ".png"
|
||
with Image.open(target) as target_img:
|
||
|
||
# Epsilon ~.5 fails with FreeType 2.7
|
||
assert_image_similar(im, target_img, self.metrics["multiline"])
|
||
|
||
def test_unknown_align(self):
|
||
im = Image.new(mode="RGB", size=(300, 100))
|
||
draw = ImageDraw.Draw(im)
|
||
ttf = self.get_font()
|
||
|
||
# Act/Assert
|
||
with pytest.raises(ValueError):
|
||
draw.multiline_text((0, 0), TEST_TEXT, font=ttf, align="unknown")
|
||
|
||
def test_draw_align(self):
|
||
im = Image.new("RGB", (300, 100), "white")
|
||
draw = ImageDraw.Draw(im)
|
||
ttf = self.get_font()
|
||
line = "some text"
|
||
draw.text((100, 40), line, (0, 0, 0), font=ttf, align="left")
|
||
|
||
def test_multiline_size(self):
|
||
ttf = self.get_font()
|
||
im = Image.new(mode="RGB", size=(300, 100))
|
||
draw = ImageDraw.Draw(im)
|
||
|
||
# Test that textsize() correctly connects to multiline_textsize()
|
||
assert draw.textsize(TEST_TEXT, font=ttf) == draw.multiline_textsize(
|
||
TEST_TEXT, font=ttf
|
||
)
|
||
|
||
# Test that multiline_textsize corresponds to ImageFont.textsize()
|
||
# for single line text
|
||
assert ttf.getsize("A") == draw.multiline_textsize("A", font=ttf)
|
||
|
||
# Test that textsize() can pass on additional arguments
|
||
# to multiline_textsize()
|
||
draw.textsize(TEST_TEXT, font=ttf, spacing=4)
|
||
draw.textsize(TEST_TEXT, ttf, 4)
|
||
|
||
def test_multiline_width(self):
|
||
ttf = self.get_font()
|
||
im = Image.new(mode="RGB", size=(300, 100))
|
||
draw = ImageDraw.Draw(im)
|
||
|
||
assert (
|
||
draw.textsize("longest line", font=ttf)[0]
|
||
== draw.multiline_textsize("longest line\nline", font=ttf)[0]
|
||
)
|
||
|
||
def test_multiline_spacing(self):
|
||
ttf = self.get_font()
|
||
|
||
im = Image.new(mode="RGB", size=(300, 100))
|
||
draw = ImageDraw.Draw(im)
|
||
draw.multiline_text((0, 0), TEST_TEXT, font=ttf, spacing=10)
|
||
|
||
target = "Tests/images/multiline_text_spacing.png"
|
||
with Image.open(target) as target_img:
|
||
|
||
# Epsilon ~.5 fails with FreeType 2.7
|
||
assert_image_similar(im, target_img, self.metrics["multiline"])
|
||
|
||
def test_rotated_transposed_font(self):
|
||
img_grey = Image.new("L", (100, 100))
|
||
draw = ImageDraw.Draw(img_grey)
|
||
word = "testing"
|
||
font = self.get_font()
|
||
|
||
orientation = Image.ROTATE_90
|
||
transposed_font = ImageFont.TransposedFont(font, orientation=orientation)
|
||
|
||
# Original font
|
||
draw.font = font
|
||
box_size_a = draw.textsize(word)
|
||
|
||
# Rotated font
|
||
draw.font = transposed_font
|
||
box_size_b = draw.textsize(word)
|
||
|
||
# Check (w,h) of box a is (h,w) of box b
|
||
assert box_size_a[0] == box_size_b[1]
|
||
assert box_size_a[1] == box_size_b[0]
|
||
|
||
def test_unrotated_transposed_font(self):
|
||
img_grey = Image.new("L", (100, 100))
|
||
draw = ImageDraw.Draw(img_grey)
|
||
word = "testing"
|
||
font = self.get_font()
|
||
|
||
orientation = None
|
||
transposed_font = ImageFont.TransposedFont(font, orientation=orientation)
|
||
|
||
# Original font
|
||
draw.font = font
|
||
box_size_a = draw.textsize(word)
|
||
|
||
# Rotated font
|
||
draw.font = transposed_font
|
||
box_size_b = draw.textsize(word)
|
||
|
||
# Check boxes a and b are same size
|
||
assert box_size_a == box_size_b
|
||
|
||
def test_rotated_transposed_font_get_mask(self):
|
||
# Arrange
|
||
text = "mask this"
|
||
font = self.get_font()
|
||
orientation = Image.ROTATE_90
|
||
transposed_font = ImageFont.TransposedFont(font, orientation=orientation)
|
||
|
||
# Act
|
||
mask = transposed_font.getmask(text)
|
||
|
||
# Assert
|
||
assert mask.size == (13, 108)
|
||
|
||
def test_unrotated_transposed_font_get_mask(self):
|
||
# Arrange
|
||
text = "mask this"
|
||
font = self.get_font()
|
||
orientation = None
|
||
transposed_font = ImageFont.TransposedFont(font, orientation=orientation)
|
||
|
||
# Act
|
||
mask = transposed_font.getmask(text)
|
||
|
||
# Assert
|
||
assert mask.size == (108, 13)
|
||
|
||
def test_free_type_font_get_name(self):
|
||
# Arrange
|
||
font = self.get_font()
|
||
|
||
# Act
|
||
name = font.getname()
|
||
|
||
# Assert
|
||
assert ("FreeMono", "Regular") == name
|
||
|
||
def test_free_type_font_get_metrics(self):
|
||
# Arrange
|
||
font = self.get_font()
|
||
|
||
# Act
|
||
ascent, descent = font.getmetrics()
|
||
|
||
# Assert
|
||
assert isinstance(ascent, int)
|
||
assert isinstance(descent, int)
|
||
assert (ascent, descent) == (16, 4) # too exact check?
|
||
|
||
def test_free_type_font_get_offset(self):
|
||
# Arrange
|
||
font = self.get_font()
|
||
text = "offset this"
|
||
|
||
# Act
|
||
offset = font.getoffset(text)
|
||
|
||
# Assert
|
||
assert offset == (0, 3)
|
||
|
||
def test_free_type_font_get_mask(self):
|
||
# Arrange
|
||
font = self.get_font()
|
||
text = "mask this"
|
||
|
||
# Act
|
||
mask = font.getmask(text)
|
||
|
||
# Assert
|
||
assert mask.size == (108, 13)
|
||
|
||
def test_load_path_not_found(self):
|
||
# Arrange
|
||
filename = "somefilenamethatdoesntexist.ttf"
|
||
|
||
# Act/Assert
|
||
with pytest.raises(OSError):
|
||
ImageFont.load_path(filename)
|
||
with pytest.raises(OSError):
|
||
ImageFont.truetype(filename)
|
||
|
||
def test_load_non_font_bytes(self):
|
||
with open("Tests/images/hopper.jpg", "rb") as f:
|
||
with pytest.raises(OSError):
|
||
ImageFont.truetype(f)
|
||
|
||
def test_default_font(self):
|
||
# Arrange
|
||
txt = 'This is a "better than nothing" default font.'
|
||
im = Image.new(mode="RGB", size=(300, 100))
|
||
draw = ImageDraw.Draw(im)
|
||
|
||
target = "Tests/images/default_font.png"
|
||
with Image.open(target) as target_img:
|
||
|
||
# Act
|
||
default_font = ImageFont.load_default()
|
||
draw.text((10, 10), txt, font=default_font)
|
||
|
||
# Assert
|
||
assert_image_equal(im, target_img)
|
||
|
||
def test_getsize_empty(self):
|
||
# issue #2614
|
||
font = self.get_font()
|
||
# should not crash.
|
||
assert (0, 0) == font.getsize("")
|
||
|
||
def test_render_empty(self):
|
||
# issue 2666
|
||
font = self.get_font()
|
||
im = Image.new(mode="RGB", size=(300, 100))
|
||
target = im.copy()
|
||
draw = ImageDraw.Draw(im)
|
||
# should not crash here.
|
||
draw.text((10, 10), "", font=font)
|
||
assert_image_equal(im, target)
|
||
|
||
def test_unicode_pilfont(self):
|
||
# should not segfault, should return UnicodeDecodeError
|
||
# issue #2826
|
||
font = ImageFont.load_default()
|
||
with pytest.raises(UnicodeEncodeError):
|
||
font.getsize("’")
|
||
|
||
@pytest.mark.skipif(is_pypy(), reason="failing on PyPy")
|
||
def test_unicode_extended(self):
|
||
# issue #3777
|
||
text = "A\u278A\U0001F12B"
|
||
target = "Tests/images/unicode_extended.png"
|
||
|
||
ttf = ImageFont.truetype(
|
||
"Tests/fonts/NotoSansSymbols-Regular.ttf",
|
||
FONT_SIZE,
|
||
layout_engine=self.LAYOUT_ENGINE,
|
||
)
|
||
img = Image.new("RGB", (100, 60))
|
||
d = ImageDraw.Draw(img)
|
||
d.text((10, 10), text, font=ttf)
|
||
|
||
assert_image_similar_tofile(img, target, self.metrics["multiline"])
|
||
|
||
def _test_fake_loading_font(self, monkeypatch, path_to_fake, fontname):
|
||
# Make a copy of FreeTypeFont so we can patch the original
|
||
free_type_font = copy.deepcopy(ImageFont.FreeTypeFont)
|
||
with monkeypatch.context() as m:
|
||
m.setattr(ImageFont, "_FreeTypeFont", free_type_font, raising=False)
|
||
|
||
def loadable_font(filepath, size, index, encoding, *args, **kwargs):
|
||
if filepath == path_to_fake:
|
||
return ImageFont._FreeTypeFont(
|
||
FONT_PATH, size, index, encoding, *args, **kwargs
|
||
)
|
||
return ImageFont._FreeTypeFont(
|
||
filepath, size, index, encoding, *args, **kwargs
|
||
)
|
||
|
||
m.setattr(ImageFont, "FreeTypeFont", loadable_font)
|
||
font = ImageFont.truetype(fontname)
|
||
# Make sure it's loaded
|
||
name = font.getname()
|
||
assert ("FreeMono", "Regular") == name
|
||
|
||
@pytest.mark.skipif(is_win32(), reason="requires Unix or macOS")
|
||
def test_find_linux_font(self, monkeypatch):
|
||
# A lot of mocking here - this is more for hitting code and
|
||
# catching syntax like errors
|
||
font_directory = "/usr/local/share/fonts"
|
||
monkeypatch.setattr(sys, "platform", "linux")
|
||
monkeypatch.setenv("XDG_DATA_DIRS", "/usr/share/:/usr/local/share/")
|
||
|
||
def fake_walker(path):
|
||
if path == font_directory:
|
||
return [
|
||
(
|
||
path,
|
||
[],
|
||
["Arial.ttf", "Single.otf", "Duplicate.otf", "Duplicate.ttf"],
|
||
)
|
||
]
|
||
return [(path, [], ["some_random_font.ttf"])]
|
||
|
||
monkeypatch.setattr(os, "walk", fake_walker)
|
||
# Test that the font loads both with and without the
|
||
# extension
|
||
self._test_fake_loading_font(
|
||
monkeypatch, font_directory + "/Arial.ttf", "Arial.ttf"
|
||
)
|
||
self._test_fake_loading_font(
|
||
monkeypatch, font_directory + "/Arial.ttf", "Arial"
|
||
)
|
||
|
||
# Test that non-ttf fonts can be found without the
|
||
# extension
|
||
self._test_fake_loading_font(
|
||
monkeypatch, font_directory + "/Single.otf", "Single"
|
||
)
|
||
|
||
# Test that ttf fonts are preferred if the extension is
|
||
# not specified
|
||
self._test_fake_loading_font(
|
||
monkeypatch, font_directory + "/Duplicate.ttf", "Duplicate"
|
||
)
|
||
|
||
@pytest.mark.skipif(is_win32(), reason="requires Unix or macOS")
|
||
def test_find_macos_font(self, monkeypatch):
|
||
# Like the linux test, more cover hitting code rather than testing
|
||
# correctness.
|
||
font_directory = "/System/Library/Fonts"
|
||
monkeypatch.setattr(sys, "platform", "darwin")
|
||
|
||
def fake_walker(path):
|
||
if path == font_directory:
|
||
return [
|
||
(
|
||
path,
|
||
[],
|
||
["Arial.ttf", "Single.otf", "Duplicate.otf", "Duplicate.ttf"],
|
||
)
|
||
]
|
||
return [(path, [], ["some_random_font.ttf"])]
|
||
|
||
monkeypatch.setattr(os, "walk", fake_walker)
|
||
self._test_fake_loading_font(
|
||
monkeypatch, font_directory + "/Arial.ttf", "Arial.ttf"
|
||
)
|
||
self._test_fake_loading_font(
|
||
monkeypatch, font_directory + "/Arial.ttf", "Arial"
|
||
)
|
||
self._test_fake_loading_font(
|
||
monkeypatch, font_directory + "/Single.otf", "Single"
|
||
)
|
||
self._test_fake_loading_font(
|
||
monkeypatch, font_directory + "/Duplicate.ttf", "Duplicate"
|
||
)
|
||
|
||
def test_imagefont_getters(self):
|
||
# Arrange
|
||
t = self.get_font()
|
||
|
||
# Act / Assert
|
||
assert t.getmetrics() == (16, 4)
|
||
assert t.font.ascent == 16
|
||
assert t.font.descent == 4
|
||
assert t.font.height == 20
|
||
assert t.font.x_ppem == 20
|
||
assert t.font.y_ppem == 20
|
||
assert t.font.glyphs == 4177
|
||
assert t.getsize("A") == (12, 16)
|
||
assert t.getsize("AB") == (24, 16)
|
||
assert t.getsize("M") == self.metrics["getters"]
|
||
assert t.getsize("y") == (12, 20)
|
||
assert t.getsize("a") == (12, 16)
|
||
assert t.getsize_multiline("A") == (12, 16)
|
||
assert t.getsize_multiline("AB") == (24, 16)
|
||
assert t.getsize_multiline("a") == (12, 16)
|
||
assert t.getsize_multiline("ABC\n") == (36, 36)
|
||
assert t.getsize_multiline("ABC\nA") == (36, 36)
|
||
assert t.getsize_multiline("ABC\nAaaa") == (48, 36)
|
||
|
||
def test_getsize_stroke(self):
|
||
# Arrange
|
||
t = self.get_font()
|
||
|
||
# Act / Assert
|
||
for stroke_width in [0, 2]:
|
||
assert t.getsize("A", stroke_width=stroke_width) == (
|
||
12 + stroke_width * 2,
|
||
16 + stroke_width * 2,
|
||
)
|
||
assert t.getsize_multiline("ABC\nAaaa", stroke_width=stroke_width) == (
|
||
48 + stroke_width * 2,
|
||
36 + stroke_width * 4,
|
||
)
|
||
|
||
def test_complex_font_settings(self):
|
||
# Arrange
|
||
t = self.get_font()
|
||
# Act / Assert
|
||
if t.layout_engine == ImageFont.LAYOUT_BASIC:
|
||
with pytest.raises(KeyError):
|
||
t.getmask("абвг", direction="rtl")
|
||
with pytest.raises(KeyError):
|
||
t.getmask("абвг", features=["-kern"])
|
||
with pytest.raises(KeyError):
|
||
t.getmask("абвг", language="sr")
|
||
|
||
def test_variation_get(self):
|
||
font = self.get_font()
|
||
|
||
freetype = distutils.version.StrictVersion(ImageFont.core.freetype2_version)
|
||
if freetype < "2.9.1":
|
||
with pytest.raises(NotImplementedError):
|
||
font.get_variation_names()
|
||
with pytest.raises(NotImplementedError):
|
||
font.get_variation_axes()
|
||
return
|
||
|
||
with pytest.raises(OSError):
|
||
font.get_variation_names()
|
||
with pytest.raises(OSError):
|
||
font.get_variation_axes()
|
||
|
||
font = ImageFont.truetype("Tests/fonts/AdobeVFPrototype.ttf")
|
||
assert font.get_variation_names(), [
|
||
b"ExtraLight",
|
||
b"Light",
|
||
b"Regular",
|
||
b"Semibold",
|
||
b"Bold",
|
||
b"Black",
|
||
b"Black Medium Contrast",
|
||
b"Black High Contrast",
|
||
b"Default",
|
||
]
|
||
assert font.get_variation_axes() == [
|
||
{"name": b"Weight", "minimum": 200, "maximum": 900, "default": 389},
|
||
{"name": b"Contrast", "minimum": 0, "maximum": 100, "default": 0},
|
||
]
|
||
|
||
font = ImageFont.truetype("Tests/fonts/TINY5x3GX.ttf")
|
||
assert font.get_variation_names() == [
|
||
b"20",
|
||
b"40",
|
||
b"60",
|
||
b"80",
|
||
b"100",
|
||
b"120",
|
||
b"140",
|
||
b"160",
|
||
b"180",
|
||
b"200",
|
||
b"220",
|
||
b"240",
|
||
b"260",
|
||
b"280",
|
||
b"300",
|
||
b"Regular",
|
||
]
|
||
assert font.get_variation_axes() == [
|
||
{"name": b"Size", "minimum": 0, "maximum": 300, "default": 0}
|
||
]
|
||
|
||
def _check_text(self, font, path, epsilon):
|
||
im = Image.new("RGB", (100, 75), "white")
|
||
d = ImageDraw.Draw(im)
|
||
d.text((10, 10), "Text", font=font, fill="black")
|
||
|
||
try:
|
||
with Image.open(path) as expected:
|
||
assert_image_similar(im, expected, epsilon)
|
||
except AssertionError:
|
||
if "_adobe" in path:
|
||
path = path.replace("_adobe", "_adobe_older_harfbuzz")
|
||
with Image.open(path) as expected:
|
||
assert_image_similar(im, expected, epsilon)
|
||
else:
|
||
raise
|
||
|
||
def test_variation_set_by_name(self):
|
||
font = self.get_font()
|
||
|
||
freetype = distutils.version.StrictVersion(ImageFont.core.freetype2_version)
|
||
if freetype < "2.9.1":
|
||
with pytest.raises(NotImplementedError):
|
||
font.set_variation_by_name("Bold")
|
||
return
|
||
|
||
with pytest.raises(OSError):
|
||
font.set_variation_by_name("Bold")
|
||
|
||
font = ImageFont.truetype("Tests/fonts/AdobeVFPrototype.ttf", 36)
|
||
self._check_text(font, "Tests/images/variation_adobe.png", 11)
|
||
for name in ["Bold", b"Bold"]:
|
||
font.set_variation_by_name(name)
|
||
self._check_text(font, "Tests/images/variation_adobe_name.png", 11)
|
||
|
||
font = ImageFont.truetype("Tests/fonts/TINY5x3GX.ttf", 36)
|
||
self._check_text(font, "Tests/images/variation_tiny.png", 40)
|
||
for name in ["200", b"200"]:
|
||
font.set_variation_by_name(name)
|
||
self._check_text(font, "Tests/images/variation_tiny_name.png", 40)
|
||
|
||
def test_variation_set_by_axes(self):
|
||
font = self.get_font()
|
||
|
||
freetype = distutils.version.StrictVersion(ImageFont.core.freetype2_version)
|
||
if freetype < "2.9.1":
|
||
with pytest.raises(NotImplementedError):
|
||
font.set_variation_by_axes([100])
|
||
return
|
||
|
||
with pytest.raises(OSError):
|
||
font.set_variation_by_axes([500, 50])
|
||
|
||
font = ImageFont.truetype("Tests/fonts/AdobeVFPrototype.ttf", 36)
|
||
font.set_variation_by_axes([500, 50])
|
||
self._check_text(font, "Tests/images/variation_adobe_axes.png", 5.1)
|
||
|
||
font = ImageFont.truetype("Tests/fonts/TINY5x3GX.ttf", 36)
|
||
font.set_variation_by_axes([100])
|
||
self._check_text(font, "Tests/images/variation_tiny_axes.png", 32.5)
|
||
|
||
|
||
@skip_unless_feature("raqm")
|
||
class TestImageFont_RaqmLayout(TestImageFont):
|
||
LAYOUT_ENGINE = ImageFont.LAYOUT_RAQM
|