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# -*- coding: utf-8 -*-
import pytest
from sdl2 import ext as sdl2ext
from sdl2.ext.compat import byteify, ExperimentalWarning
from sdl2.ext.pixelaccess import pixels2d
from sdl2 import surface, sdlttf
RESOURCES = sdl2ext.Resources(__file__, "resources")
FONTMAP = ["0123456789",
"ABCDEFGHIJ",
"KLMNOPQRST",
"UVWXYZ ",
"abcdefghij",
"klmnopqrst",
"uvwxyz ",
",;.:!?-+()"
]
class TestSDL2ExtFont(object):
__tags__ = ["sdl", "sdl2ext"]
@classmethod
def setup_class(cls):
try:
sdl2ext.init()
except sdl2ext.SDLError:
raise pytest.skip('Video subsystem not supported')
@classmethod
def teardown_class(cls):
sdl2ext.quit()
def test_BitmapFont(self):
# Initialize surface and sprite for tests
fontpath = byteify(RESOURCES.get_path("font.bmp"), "utf-8")
sf = surface.SDL_LoadBMP(fontpath)
sprite = sdl2ext.SoftwareSprite(sf.contents, True)
# Try SoftwareSprite surface
font = sdl2ext.BitmapFont(sprite, (32, 32), FONTMAP)
assert font.size == (32, 32)
# Try SDL_Surface surface
font = sdl2ext.BitmapFont(sf.contents, (32, 32), FONTMAP)
assert font.size == (32, 32)
# Try SDL_Surface pointer surface
font = sdl2ext.BitmapFont(sf, (32, 32), FONTMAP)
assert font.size == (32, 32)
# Try invalid surface type
with pytest.raises(TypeError):
font = sdl2ext.BitmapFont("hello", (32, 32), FONTMAP)
def test_BitmapFont_render(self):
# Initialize font and BitmapFont for tests
fontpath = byteify(RESOURCES.get_path("font.bmp"), "utf-8")
sf = surface.SDL_LoadBMP(fontpath)
font = sdl2ext.BitmapFont(sf.contents, (32, 32), FONTMAP)
# Try rendering some text
msg = "hello there!"
text = font.render(msg)
assert isinstance(text, sdl2ext.SoftwareSprite)
assert text.size[0] == 32 * len(msg)
# Test exception for missing glyph
with pytest.raises(ValueError):
font.render("this_should_fail")
def test_BitmapFont_render_on(self):
np = pytest.importorskip("numpy", reason="numpy module is not available")
# Initialize font, surface, and BitmapFont for tests
fontpath = byteify(RESOURCES.get_path("font.bmp"), "utf-8")
sf = surface.SDL_LoadBMP(fontpath)
font = sdl2ext.BitmapFont(sf.contents, (32, 32), FONTMAP)
# Try rendering some text
target = surface.SDL_CreateRGBSurface(0, 32*5, 32, 32, 0, 0, 0, 0)
with pytest.warns(ExperimentalWarning):
view = pixels2d(target, transpose=False)
mid_row = view[16, :].copy()
font.render_on(target, "TEST!")
assert not np.all(mid_row == view[16, :]) # ensure surface changed
# Try rendering some text with an offset
target2 = surface.SDL_CreateRGBSurface(0, 32*5, 32, 32, 0, 0, 0, 0)
with pytest.warns(ExperimentalWarning):
view2 = pixels2d(target2, transpose=False)
font.render_on(target2, "TEST!", offset=(5, 0))
assert not np.all(mid_row == view2[16, :]) # ensure surface changed
assert not np.all(view[16, :] == view2[16, :]) # ensure offset worked
# Test exception for missing glyph
with pytest.raises(ValueError):
font.render_on(target, "%nope")
def test_BitmapFont_contains(self):
sf = surface.SDL_LoadBMP(byteify(RESOURCES.get_path("font.bmp"),
"utf-8"))
assert isinstance(sf.contents, surface.SDL_Surface)
font = sdl2ext.BitmapFont(sf, (32, 32), FONTMAP)
assert isinstance(font, sdl2ext.BitmapFont)
for ch in "abcde12345.-,+":
assert font.contains(ch)
for ch in "äöüß":
assert not font.contains(ch)
def test_BitmapFont_can_render(self):
sf = surface.SDL_LoadBMP(byteify(RESOURCES.get_path("font.bmp"),
"utf-8"))
assert isinstance(sf.contents, surface.SDL_Surface)
font = sdl2ext.BitmapFont(sf, (32, 32), FONTMAP)
assert isinstance(font, sdl2ext.BitmapFont)
assert font.can_render("text")
assert font.can_render("473285435hfsjadfhriuewtrhefd")
assert not font.can_render("testä")
def test_FontManager(self):
fm = sdl2ext.FontManager(RESOURCES.get_path("tuffy.ttf"),
bg_color=(100, 0, 0))
assert isinstance(fm, sdl2ext.FontManager)
assert fm.default_font == "tuffy"
assert fm.size == 16
assert fm.bg_color == sdl2ext.Color(100, 0, 0, 0)
def test_FontManager_default_font(self):
fm = sdl2ext.FontManager(RESOURCES.get_path("tuffy.ttf"))
assert fm.default_font == "tuffy"
assert fm.size == 16
with pytest.raises(ValueError):
fm.default_font = "Inexistent Alias"
fm.add(RESOURCES.get_path("tuffy.copy.ttf"), size = 10)
fm.default_font = "tuffy.copy"
fm.size = 10
assert fm.default_font == "tuffy.copy"
assert fm.size == 10
fm.default_font = "tuffy.copy"
fm.size = 16
assert fm.default_font == "tuffy.copy"
assert fm.size == 16
def test_FontManager_add(self):
fm = sdl2ext.FontManager(RESOURCES.get_path("tuffy.ttf"))
assert "tuffy" in fm.aliases
assert "tuffy" in fm.fonts
assert 16 in fm.fonts["tuffy"]
assert isinstance(fm.fonts["tuffy"][16].contents, sdlttf.TTF_Font)
# Do some metrics tests
# NOTE: Ascent & other font metrics changed in FreeType 2.10, so we
# test against both < 2.10 and >= 2.10 values
font = fm.fonts["tuffy"][16]
assert sdlttf.TTF_FontAscent(font) in [13, 16]
fm.add(RESOURCES.get_path("tuffy.ttf"), size=12)
font = fm.fonts["tuffy"][12]
assert sdlttf.TTF_FontAscent(font) in [10, 12]
with pytest.raises(IOError):
fm.add("inexistent.ttf")
# I don't find a scenario raising a TTF_Error.
# self.assertRaises(sdl2ext.SDLError, fm.add, "resources/tuffy.ttf",
# size=-1)
# Close the font manager and add a new font
fm.close()
fm.add(RESOURCES.get_path("tuffy.ttf"), size=12)
assert isinstance(fm.fonts["tuffy"][12].contents, sdlttf.TTF_Font)
def test_FontManager_close(self):
fm = sdl2ext.FontManager(RESOURCES.get_path("tuffy.ttf"))
fm.add(RESOURCES.get_path("tuffy.ttf"), size=20)
fm.add(RESOURCES.get_path("tuffy.ttf"), alias="Foo", size=10)
fm.close()
assert fm.fonts == {}
# How to make sure TTF_CloseFont was called on each loaded font?
def test_FontManager_render(self):
fm = sdl2ext.FontManager(RESOURCES.get_path("tuffy.ttf"))
text_surf = fm.render("text")
assert isinstance(text_surf, surface.SDL_Surface)
assert text_surf.w > 1
text_surf = fm.render("text", size=10)
assert isinstance(text_surf, surface.SDL_Surface)
text_surf = fm.render("""
text long enough to have it wrapped at 100 px width.""", size=20, width=100)
assert isinstance(text_surf, surface.SDL_Surface)
assert text_surf.w > 1
assert text_surf.w == 100
with pytest.raises(KeyError):
fm.render("text", alias="inexistent")
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