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# Copyright (C) 2016-2022 Ruby-GNOME 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 TestPangoContext < Test::Unit::TestCase
include GtkTestUtils
def test_set_shape_renderer
text = "this is a test"
label = Gtk::Label.new(text)
layout = label.layout
last_block_arguments = nil
layout.context.set_shape_renderer do |cr, attr, do_path|
last_block_arguments = [cr.class, attr.class, do_path]
end
metrics = layout.context.get_metrics(layout.font_description)
ascent = metrics.ascent
logical_rect = Pango::Rectangle.new(0, -ascent, ascent, ascent)
ink_rect = logical_rect.dup
attrs = Pango::AttrList.new
attr = Pango::AttrShape.new(ink_rect, logical_rect, "a")
attr.start_index = text[0, text.index("a")].bytesize
attr.end_index = attr.start_index + "a".bytesize
attrs.insert(attr)
label.attributes = attrs
window = Gtk::Window.new
main_loop = GLib::MainLoop.new
window.child = label
GLib::Timeout.add(1000) do
window.destroy
main_loop.quit
GLib::Source::REMOVE
end
window.present
main_loop.run
assert_equal([Cairo::Context, Pango::AttrShape, false],
last_block_arguments)
end
end
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