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# -*- Mode: Python; py-indent-offset: 4 -*-
# coding=utf-8
# vim: tabstop=4 shiftwidth=4 expandtab
import unittest
import gi
try:
gi.require_foreign('cairo')
import cairo
from gi.repository import Regress
has_cairo = True
except ImportError:
has_cairo = False
try:
from gi.repository import Gtk
Gtk # pyflakes
except:
Gtk = None
from gi.repository import GObject
@unittest.skipUnless(has_cairo, 'built without cairo support')
class Test(unittest.TestCase):
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_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_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(Gtk, 'Gtk not available')
class TestPango(unittest.TestCase):
def test_cairo_font_options(self):
screen = Gtk.Window().get_screen()
font_opts = screen.get_font_options()
self.assertEqual(type(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))
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))
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))
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))
if __name__ == '__main__':
unittest.main()
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