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import unittest
import pytest
import gi
try:
gi.require_foreign("cairo")
import cairo
has_cairo = True
except ImportError:
has_cairo = False
has_region = has_cairo and hasattr(cairo, "Region")
try:
from gi.repository import Gtk, Gdk
Gtk, Gdk
except ImportError:
Gtk = None
Gdk = None
from gi.repository import GObject, Regress
@unittest.skipUnless(has_cairo, "built without cairo support")
class Test(unittest.TestCase):
def test_gvalue_converters(self):
surface = cairo.ImageSurface(cairo.FORMAT_ARGB32, 10, 10)
context = cairo.Context(surface)
matrix = cairo.Matrix()
objects = {
"CairoContext": context,
"CairoSurface": surface,
"CairoFontFace": context.get_font_face(),
"CairoScaledFont": context.get_scaled_font(),
"CairoPattern": context.get_source(),
"CairoMatrix": matrix,
}
for type_name, cairo_obj in objects.items():
gtype = GObject.type_from_name(type_name)
v = GObject.Value()
assert v.init(gtype) is None
assert v.get_value() is None
v.set_value(None)
assert v.get_value() is None
v.set_value(cairo_obj)
assert v.get_value() == cairo_obj
def test_cairo_context(self):
context = Regress.test_cairo_context_full_return()
self.assertTrue(isinstance(context, cairo.Context))
surface = cairo.ImageSurface(cairo.FORMAT_ARGB32, 10, 10)
context = cairo.Context(surface)
Regress.test_cairo_context_none_in(context)
def test_cairo_context_full_in(self):
surface = cairo.ImageSurface(cairo.FORMAT_ARGB32, 10, 10)
context = cairo.Context(surface)
Regress.test_cairo_context_full_in(context)
with pytest.raises(TypeError):
Regress.test_cairo_context_full_in(object())
def test_cairo_context_none_return(self):
context = Regress.test_cairo_context_none_return()
self.assertTrue(isinstance(context, cairo.Context))
def test_cairo_path_full_return(self):
path = Regress.test_cairo_path_full_return()
if hasattr(cairo, "Path"): # pycairo 1.15.1+
assert isinstance(path, cairo.Path)
def test_cairo_path_none_in(self):
surface = cairo.ImageSurface(cairo.FORMAT_ARGB32, 10, 10)
context = cairo.Context(surface)
path = context.copy_path()
Regress.test_cairo_path_none_in(path)
surface.finish()
with pytest.raises(TypeError):
Regress.test_cairo_path_none_in(object())
def test_cairo_path_full_in_full_return(self):
surface = cairo.ImageSurface(cairo.FORMAT_ARGB32, 10, 10)
context = cairo.Context(surface)
context.move_to(10, 10)
context.curve_to(10, 10, 3, 4, 5, 6)
path = context.copy_path()
new_path = Regress.test_cairo_path_full_in_full_return(path)
assert list(path) == list(new_path)
surface.finish()
def test_cairo_font_options_full_return(self):
options = Regress.test_cairo_font_options_full_return()
assert isinstance(options, cairo.FontOptions)
def test_cairo_font_options_none_return(self):
options = Regress.test_cairo_font_options_none_return()
assert isinstance(options, cairo.FontOptions)
def test_cairo_font_options_full_in(self):
options = cairo.FontOptions()
Regress.test_cairo_font_options_full_in(options)
with pytest.raises(TypeError):
Regress.test_cairo_font_options_full_in(object())
def test_cairo_font_options_none_in(self):
options = cairo.FontOptions()
Regress.test_cairo_font_options_none_in(options)
def test_cairo_font_face_full_return(self):
surface = cairo.ImageSurface(cairo.FORMAT_ARGB32, 10, 10)
context = cairo.Context(surface)
font_face = Regress.test_cairo_font_face_full_return(context)
assert font_face
def test_cairo_scaled_font_full_return(self):
surface = cairo.ImageSurface(cairo.FORMAT_ARGB32, 10, 10)
context = cairo.Context(surface)
scaled_font = Regress.test_cairo_scaled_font_full_return(context)
assert scaled_font
def test_cairo_pattern_full_in(self):
pattern = cairo.SolidPattern(1, 1, 1, 1)
Regress.test_cairo_pattern_full_in(pattern)
with pytest.raises(TypeError):
Regress.test_cairo_pattern_full_in(object())
def test_cairo_pattern_none_in(self):
pattern = cairo.SolidPattern(1, 1, 1, 1)
Regress.test_cairo_pattern_none_in(pattern)
def test_cairo_pattern_full_return(self):
pattern = Regress.test_cairo_pattern_full_return()
self.assertTrue(isinstance(pattern, cairo.Pattern))
self.assertTrue(isinstance(pattern, cairo.SolidPattern))
def test_cairo_pattern_none_return(self):
pattern = Regress.test_cairo_pattern_none_return()
self.assertTrue(isinstance(pattern, cairo.Pattern))
self.assertTrue(isinstance(pattern, cairo.SolidPattern))
def test_cairo_region_full_in(self):
region = cairo.Region()
Regress.test_cairo_region_full_in(region)
with pytest.raises(TypeError):
Regress.test_cairo_region_full_in(object())
def test_cairo_matrix_none_in(self):
matrix = cairo.Matrix()
Regress.test_cairo_matrix_none_in(matrix)
with pytest.raises(TypeError):
Regress.test_cairo_matrix_none_in(object())
def test_cairo_matrix_none_return(self):
matrix = Regress.test_cairo_matrix_none_return()
assert matrix == cairo.Matrix()
def test_cairo_matrix_out_caller_allocates(self):
matrix = Regress.test_cairo_matrix_out_caller_allocates()
assert matrix == cairo.Matrix()
def test_cairo_surface(self):
surface = Regress.test_cairo_surface_none_return()
self.assertTrue(isinstance(surface, cairo.ImageSurface))
self.assertTrue(isinstance(surface, cairo.Surface))
self.assertEqual(surface.get_format(), cairo.FORMAT_ARGB32)
self.assertEqual(surface.get_width(), 10)
self.assertEqual(surface.get_height(), 10)
surface = Regress.test_cairo_surface_full_return()
self.assertTrue(isinstance(surface, cairo.ImageSurface))
self.assertTrue(isinstance(surface, cairo.Surface))
self.assertEqual(surface.get_format(), cairo.FORMAT_ARGB32)
self.assertEqual(surface.get_width(), 10)
self.assertEqual(surface.get_height(), 10)
surface = cairo.ImageSurface(cairo.FORMAT_ARGB32, 10, 10)
Regress.test_cairo_surface_none_in(surface)
surface = Regress.test_cairo_surface_full_out()
self.assertTrue(isinstance(surface, cairo.ImageSurface))
self.assertTrue(isinstance(surface, cairo.Surface))
self.assertEqual(surface.get_format(), cairo.FORMAT_ARGB32)
self.assertEqual(surface.get_width(), 10)
self.assertEqual(surface.get_height(), 10)
def test_cairo_surface_full_in(self):
surface = cairo.ImageSurface(cairo.FORMAT_ARGB32, 10, 10)
Regress.test_cairo_surface_full_in(surface)
with pytest.raises(TypeError):
Regress.test_cairo_surface_full_in(object())
def test_require_foreign(self):
self.assertEqual(gi.require_foreign("cairo"), None)
self.assertEqual(gi.require_foreign("cairo", "Context"), None)
self.assertRaises(ImportError, gi.require_foreign, "invalid_module")
self.assertRaises(
ImportError, gi.require_foreign, "invalid_module", "invalid_symbol"
)
self.assertRaises(ImportError, gi.require_foreign, "cairo", "invalid_symbol")
@unittest.skipUnless(has_cairo, "built without cairo support")
@unittest.skipUnless(has_region, "built without cairo.Region support")
@unittest.skipUnless(Gdk, "Gdk not available")
class TestRegion(unittest.TestCase):
def test_region_to_py(self):
surface = cairo.ImageSurface(cairo.FORMAT_ARGB32, 10, 10)
context = cairo.Context(surface)
context.paint()
region = Gdk.cairo_region_create_from_surface(surface)
r = region.get_extents()
self.assertEqual((r.height, r.width), (10, 10))
def test_region_from_py(self):
surface = cairo.ImageSurface(cairo.FORMAT_ARGB32, 10, 10)
context = cairo.Context(surface)
region = cairo.Region(cairo.RectangleInt(0, 0, 42, 42))
Gdk.cairo_region(context, region)
self.assertTrue("42" in repr(list(context.copy_path())))
@unittest.skipUnless(has_cairo, "built without cairo support")
@unittest.skipUnless(Gtk, "Gtk not available")
class TestPango(unittest.TestCase):
def test_cairo_font_options(self):
window = Gtk.Window()
if Gtk._version == "4.0":
window.set_font_options(cairo.FontOptions())
font_opts = window.get_font_options()
else:
screen = window.get_screen()
font_opts = screen.get_font_options()
assert font_opts is not None
self.assertTrue(isinstance(font_opts.get_subpixel_order(), int))
if has_cairo:
from gi.repository import cairo as CairoGObject
# Use PyGI signals to test non-introspected foreign marshaling.
class CairoSignalTester(GObject.Object):
sig_context = GObject.Signal(arg_types=[CairoGObject.Context])
sig_surface = GObject.Signal(arg_types=[CairoGObject.Surface])
sig_font_face = GObject.Signal(arg_types=[CairoGObject.FontFace])
sig_scaled_font = GObject.Signal(arg_types=[CairoGObject.ScaledFont])
sig_pattern = GObject.Signal(arg_types=[CairoGObject.Pattern])
@unittest.skipUnless(has_cairo, "built without cairo support")
class TestSignalMarshaling(unittest.TestCase):
# Tests round tripping of cairo objects through non-introspected signals.
def setUp(self):
self.surface = cairo.ImageSurface(cairo.FORMAT_ARGB32, 10, 10)
self.context = cairo.Context(self.surface)
self.tester = CairoSignalTester()
def pass_object_through_signal(self, obj, signal):
"""Pass the given `obj` through the `signal` emission storing the
`obj` passed through the signal and returning it.
"""
passthrough_result = []
def callback(instance, passthrough):
passthrough_result.append(passthrough)
signal.connect(callback)
signal.emit(obj)
return passthrough_result[0]
def test_context(self):
result = self.pass_object_through_signal(self.context, self.tester.sig_context)
self.assertTrue(isinstance(result, cairo.Context))
with pytest.raises(TypeError):
self.pass_object_through_signal(object(), self.tester.sig_context)
def test_surface(self):
result = self.pass_object_through_signal(self.surface, self.tester.sig_surface)
self.assertTrue(isinstance(result, cairo.Surface))
def test_font_face(self):
font_face = self.context.get_font_face()
result = self.pass_object_through_signal(font_face, self.tester.sig_font_face)
self.assertTrue(isinstance(result, cairo.FontFace))
with pytest.raises(TypeError):
self.pass_object_through_signal(object(), self.tester.sig_font_face)
def test_scaled_font(self):
scaled_font = cairo.ScaledFont(
self.context.get_font_face(),
cairo.Matrix(),
cairo.Matrix(),
self.context.get_font_options(),
)
result = self.pass_object_through_signal(
scaled_font, self.tester.sig_scaled_font
)
self.assertTrue(isinstance(result, cairo.ScaledFont))
with pytest.raises(TypeError):
result = self.pass_object_through_signal(
object(), self.tester.sig_scaled_font
)
def test_pattern(self):
pattern = cairo.SolidPattern(1, 1, 1, 1)
result = self.pass_object_through_signal(pattern, self.tester.sig_pattern)
self.assertTrue(isinstance(result, cairo.Pattern))
self.assertTrue(isinstance(result, cairo.SolidPattern))
with pytest.raises(TypeError):
result = self.pass_object_through_signal(object(), self.tester.sig_pattern)
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