def test_wrap_text_empty(self):
font = create_traitsfont("Courier")
font_metrics = QtGui.QFontMetrics(font)
average_char_width = font_metrics.averageCharWidth()
line_spacing = font_metrics.lineSpacing()
width = 500 * average_char_width
height = 100 * line_spacing
lines = wrap_text_with_elision("", font, width, height)
self.assertEqual(lines, [])
def test_wrap_text_basic(self):
font = create_traitsfont("Courier")
font_metrics = QtGui.QFontMetrics(font)
average_char_width = font_metrics.averageCharWidth()
line_spacing = font_metrics.lineSpacing()
width = 500 * average_char_width
height = 100 * line_spacing
lines = wrap_text_with_elision(lorem_ipsum, font, width, height)
self.assertEqual(lines, [line.rstrip() for line in lorem_ipsum.splitlines()])
def test_wrap_text_narrow(self):
font = create_traitsfont("Courier")
font_metrics = QtGui.QFontMetrics(font)
average_char_width = font_metrics.averageCharWidth()
line_spacing = font_metrics.lineSpacing()
width = 20 * average_char_width
height = 100 * line_spacing
lines = wrap_text_with_elision(lorem_ipsum, font, width, height)
# add one char slack as depends on OS, exact font, etc.
self.assertTrue(all(len(line) <= 21 for line in lines))
def test_wrap_text_short(self):
font = create_traitsfont("Courier")
font_metrics = QtGui.QFontMetrics(font)
average_char_width = font_metrics.averageCharWidth()
line_spacing = font_metrics.lineSpacing()
width = 500 * average_char_width
height = 3 * line_spacing
lines = wrap_text_with_elision(lorem_ipsum, font, width, height)
expected_lines = get_expected_lines(lorem_ipsum, 500)[:3]
self.assertEqual(lines, expected_lines)
def test_wrap_text_narrow_short(self):
font = create_traitsfont("Courier")
font_metrics = QtGui.QFontMetrics(font)
average_char_width = font_metrics.averageCharWidth()
line_spacing = font_metrics.lineSpacing()
width = 20 * average_char_width
height = 20 * line_spacing
lines = wrap_text_with_elision(lorem_ipsum, font, width, height)
# add one char slack as depends on OS, exact font, etc.
self.assertTrue(all(len(line) <= 21 for line in lines))
# different os elide the last line slightly differently,
# just check last character shows elision.
self.assertEqual(lines[19][-1], '\u2026')
def test_wrap_text_narrow_short(self):
font = create_traitsfont("Courier")
font_metrics = QtGui.QFontMetrics(font)
average_char_width = font_metrics.averageCharWidth()
line_spacing = font_metrics.lineSpacing()
width = 20 * average_char_width
height = 20 * line_spacing
lines = wrap_text_with_elision(lorem_ipsum, font, width, height)
# add one char slack as depends on OS, exact font, etc.
self.assertTrue(all(len(line) <= 21 for line in lines))
# different os elide the last line slightly differently,
# just check end of last line shows elision.
# In most systems elision is marked with ellipsis
# but it has been reported as "..." on NetBSD.
if lines[19][-1] == ".":
self.assertEqual(lines[19][-3:], "...")
else:
self.assertEqual(lines[19][-1], "\u2026")
