def extract(cls, context: StyleParsingContext, xml_attrib: str):
(h_edge, h_offset, v_edge,
v_offset) = utils.parse_position(xml_attrib)
if h_edge == "right":
if h_offset.units is styles.LengthType.Units.px:
h_offset = styles.LengthType(
context.doc.get_px_resolution().width - h_offset.value,
h_offset.units)
elif h_offset.units is styles.LengthType.Units.pct or h_offset.units is styles.LengthType.Units.rw:
h_offset = styles.LengthType(100 - h_offset.value,
h_offset.units)
else:
raise ValueError(
"Units other than px, pct, rh, rw used in tts:position"
)
if v_edge == "bottom":
if v_offset.units is styles.LengthType.Units.px:
v_offset = styles.LengthType(
context.doc.get_px_resolution().height -
v_offset.value, v_offset.units)
elif v_offset.units is styles.LengthType.Units.pct or v_offset.units is styles.LengthType.Units.rh:
v_offset = styles.LengthType(100 - v_offset.value,
v_offset.units)
else:
raise ValueError(
"Units other than px, pct, rh, rw used in tts:position"
)
return styles.PositionType(x=h_offset, y=v_offset)
def extract(cls, context: StyleParsingContext, xml_attrib: str):
if xml_attrib == "auto":
r = styles.PositionType(
x=styles.LengthType(0, styles.LengthType.Units.pct),
y=styles.LengthType(0, styles.LengthType.Units.pct))
else:
s = xml_attrib.split(" ")
if len(s) != 2:
raise ValueError("tts:origin has not two components")
r = styles.PositionType(
x=StyleProperties.ttml_length_to_model(context, s[0]),
y=StyleProperties.ttml_length_to_model(context, s[1]))
return r
def extract(cls, context: StyleParsingContext, xml_attrib: str):
(h_edge, h_offset, v_edge, v_offset) = utils.parse_position(xml_attrib)
return styles.PositionType(
h_offset=h_offset,
v_offset=v_offset,
h_edge=styles.PositionType.HEdge(h_edge),
v_edge=styles.PositionType.VEdge(v_edge)
)
def test_style_property_Origin_has_px(self):
prop = styles.PositionType(
styles.LengthType(1, styles.LengthType.units.px),
styles.LengthType(1, styles.LengthType.units.em))
self.assertEqual(imsc_styles.StyleProperties.Origin.has_px(prop), True)
prop = styles.PositionType(
styles.LengthType(1, styles.LengthType.units.px),
styles.LengthType(1, styles.LengthType.units.px))
self.assertEqual(imsc_styles.StyleProperties.Origin.has_px(prop), True)
prop = styles.PositionType(
styles.LengthType(1, styles.LengthType.units.em),
styles.LengthType(1, styles.LengthType.units.px))
self.assertEqual(imsc_styles.StyleProperties.Origin.has_px(prop), True)
prop = styles.PositionType(
styles.LengthType(1, styles.LengthType.units.em),
styles.LengthType(1, styles.LengthType.units.em))
self.assertEqual(imsc_styles.StyleProperties.Origin.has_px(prop),
False)
def extract(cls, context: StyleParsingContext, xml_attrib: str):
return styles.PositionType(x=styles.LengthType(),
y=styles.LengthType())