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# Copyright (C) 2013-2018 Ruby-GNOME2 Project Team
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
class TestPangoMatrix < Test::Unit::TestCase
include PangoTestUtils
def test_new
matrix = Pango::Matrix.new
assert_equal([
1.0, 0.0,
0.0, 1.0,
0.0,
0.0,
],
matrix.to_a)
end
def test_translate
matrix = Pango::Matrix.new
new_matrix = matrix.translate(10, 20)
assert_equal([
1.0, 0.0,
0.0, 1.0,
10.0,
20.0,
],
new_matrix.to_a)
assert_equal(Pango::Matrix.new.to_a,
matrix.to_a)
end
def test_translate!
matrix = Pango::Matrix.new
matrix.translate!(10, 20)
assert_equal([
1.0, 0.0,
0.0, 1.0,
10.0,
20.0,
],
matrix.to_a)
end
def test_scale
matrix = Pango::Matrix.new
new_matrix = matrix.scale(3, 5)
assert_equal([
3.0, 0.0,
0.0, 5.0,
0.0,
0.0,
],
new_matrix.to_a)
assert_equal(Pango::Matrix.new.to_a,
matrix.to_a)
end
def test_scale!
matrix = Pango::Matrix.new
matrix.scale!(3, 5)
assert_equal([
3.0, 0.0,
0.0, 5.0,
0.0,
0.0,
],
matrix.to_a)
end
def test_rotate
matrix = Pango::Matrix.new
new_matrix = matrix.rotate(60)
sin = Math.sin(60 * Math::PI / 180)
cos = Math.cos(60 * Math::PI / 180)
assert_equal([
cos, sin,
-sin, cos,
0.0,
0.0,
],
new_matrix.to_a)
assert_equal(Pango::Matrix.new.to_a,
matrix.to_a)
end
def test_rotate!
matrix = Pango::Matrix.new
matrix.rotate!(60)
sin = Math.sin(60 * Math::PI / 180)
cos = Math.cos(60 * Math::PI / 180)
n_digits = 10
assert_equal([
cos, sin,
-sin, cos,
0.0,
0.0,
].collect {|number| number.round(n_digits)},
matrix.to_a.collect {|number| number.round(n_digits)})
end
def test_concat
matrix = Pango::Matrix.new
new_matrix = matrix.concat(Pango::Matrix.new.scale(3, 5))
assert_equal([
3.0, 0.0,
0.0, 5.0,
0.0,
0.0,
],
new_matrix.to_a)
assert_equal(Pango::Matrix.new.to_a,
matrix.to_a)
end
def test_plus
matrix = Pango::Matrix.new
new_matrix = matrix + Pango::Matrix.new.scale(3, 5)
assert_equal([
3.0, 0.0,
0.0, 5.0,
0.0,
0.0,
],
new_matrix.to_a)
assert_equal(Pango::Matrix.new.to_a,
matrix.to_a)
end
def test_concat!
matrix = Pango::Matrix.new
matrix.concat!(Pango::Matrix.new.scale(3, 5))
assert_equal([
3.0, 0.0,
0.0, 5.0,
0.0,
0.0,
],
matrix.to_a)
end
end
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