def extract(cls, context: StyleParsingContext, xml_attrib: str):
if xml_attrib == "auto":
return styles.ExtentType(
height=styles.LengthType(1, styles.LengthType.Units.rh),
width=styles.LengthType(1, styles.LengthType.Units.rw))
s = xml_attrib.split(" ")
if len(s) != 2:
raise ValueError("Bad tts:extent syntax")
return styles.ExtentType(
height=StyleProperties.ttml_length_to_model(context, s[1]),
width=StyleProperties.ttml_length_to_model(context, s[0]))
def test_compute_padding(self):
doc = model.ContentDocument()
r1 = model.Region("r1", doc)
r1.set_style(styles.StyleProperties.ShowBackground, styles.ShowBackgroundType.always)
r1.set_style(
styles.StyleProperties.Extent,
styles.ExtentType(
width=styles.LengthType(50, styles.LengthType.Units.pct),
height=styles.LengthType(25, styles.LengthType.Units.pct)
)
)
r1.set_style(
styles.StyleProperties.Padding,
styles.PaddingType(
before=styles.LengthType(5, styles.LengthType.Units.pct),
after=styles.LengthType(10, styles.LengthType.Units.pct),
start=styles.LengthType(15, styles.LengthType.Units.pct),
end=styles.LengthType(20, styles.LengthType.Units.pct)
)
)
doc.put_region(r1)
isd = ISD.from_model(doc, 0)
region = list(isd.iter_regions())[0]
padding: styles.PaddingType = region.get_style(styles.StyleProperties.Padding)
self.assertAlmostEqual(padding.before.value, 25 * 0.05)
self.assertAlmostEqual(padding.after.value, 25 * 0.10)
self.assertAlmostEqual(padding.start.value, 50 * 0.15)
self.assertAlmostEqual(padding.end.value, 50 * 0.2)
def test_compute_extent_em(self):
doc = model.ContentDocument()
r1 = model.Region("r1", doc)
r1.set_style(styles.StyleProperties.ShowBackground, styles.ShowBackgroundType.always)
r1.set_style(
styles.StyleProperties.Extent,
styles.ExtentType(
width=styles.LengthType(20, styles.LengthType.Units.em),
height=styles.LengthType(3, styles.LengthType.Units.em)
)
)
doc.put_region(r1)
isd = ISD.from_model(doc, 0)
region = list(isd.iter_regions())[0]
extent: styles.ExtentType = region.get_style(styles.StyleProperties.Extent)
self.assertAlmostEqual(extent.width.value, 100*20/doc.get_cell_resolution().rows)
self.assertEqual(extent.width.units, styles.LengthType.Units.rh)
self.assertAlmostEqual(extent.height.value, 100*3/doc.get_cell_resolution().rows)
self.assertEqual(extent.height.units, styles.LengthType.Units.rh)
def test_compute_extent_pct(self):
doc = model.ContentDocument()
r1 = model.Region("r1", doc)
r1.set_style(styles.StyleProperties.ShowBackground, styles.ShowBackgroundType.always)
r1.set_style(
styles.StyleProperties.Extent,
styles.ExtentType(
width=styles.LengthType(50, styles.LengthType.Units.pct),
height=styles.LengthType(25, styles.LengthType.Units.pct)
)
)
doc.put_region(r1)
isd = ISD.from_model(doc, 0)
region = list(isd.iter_regions())[0]
extent: styles.ExtentType = region.get_style(styles.StyleProperties.Extent)
self.assertEqual(extent.height.value, 25)
self.assertEqual(extent.height.units, styles.LengthType.Units.rh)
self.assertEqual(extent.width.value, 50)
self.assertEqual(extent.width.units, styles.LengthType.Units.rw)
def _get_region_from_model(doc: model.ContentDocument, x_origin: Number,
y_origin: Number, width: Number, height: Number,
display_align: styles.DisplayAlignType):
"""Returns a matching region from `doc` or creates one
"""
found_region = None
regions = list(doc.iter_regions())
for r in regions:
r_origin: styles.CoordinateType = r.get_style(
styles.StyleProperties.Origin)
assert r_origin is not None
assert r_origin.x.units is styles.LengthType.Units.pct
assert r_origin.y.units is styles.LengthType.Units.pct
if r_origin.x.value != x_origin or r_origin.y.value != y_origin:
continue
r_extent: styles.ExtentType = r.get_style(
styles.StyleProperties.Extent)
assert r_extent is not None
assert r_extent.height.units is styles.LengthType.Units.pct
assert r_extent.width.units is styles.LengthType.Units.pct
if r_extent.height.value != height or r_extent.width.value != width:
continue
r_display_align: styles.DisplayAlignType = r.get_style(
styles.StyleProperties.DisplayAlign)
assert r_display_align is not None
if r_display_align != display_align:
continue
found_region = r
break
if found_region is None:
found_region = model.Region(f"r{len(regions)}", doc)
found_region.set_style(
styles.StyleProperties.Extent,
styles.ExtentType(
height=styles.LengthType(height, styles.LengthType.Units.pct),
width=styles.LengthType(width, styles.LengthType.Units.pct),
))
found_region.set_style(
styles.StyleProperties.Origin,
styles.CoordinateType(
x=styles.LengthType(x_origin, styles.LengthType.Units.pct),
y=styles.LengthType(y_origin, styles.LengthType.Units.pct)))
found_region.set_style(styles.StyleProperties.DisplayAlign,
display_align)
doc.put_region(found_region)
return found_region
def test_style_property_extent_has_px(self):
prop = styles.ExtentType(
styles.LengthType(1, styles.LengthType.units.px),
styles.LengthType(1, styles.LengthType.units.em))
self.assertEqual(imsc_styles.StyleProperties.Extent.has_px(prop), True)
prop = styles.ExtentType(
styles.LengthType(1, styles.LengthType.units.px),
styles.LengthType(1, styles.LengthType.units.px))
self.assertEqual(imsc_styles.StyleProperties.Extent.has_px(prop), True)
prop = styles.ExtentType(
styles.LengthType(1, styles.LengthType.units.em),
styles.LengthType(1, styles.LengthType.units.px))
self.assertEqual(imsc_styles.StyleProperties.Extent.has_px(prop), True)
prop = styles.ExtentType(
styles.LengthType(1, styles.LengthType.units.em),
styles.LengthType(1, styles.LengthType.units.em))
self.assertEqual(imsc_styles.StyleProperties.Extent.has_px(prop),
False)
def test_compute_extent_em(self):
doc = model.ContentDocument()
r1 = model.Region("r1", doc)
r1.set_style(styles.StyleProperties.ShowBackground,
styles.ShowBackgroundType.always)
with self.assertRaises(ValueError) as _context:
r1.set_style(
styles.StyleProperties.Extent,
styles.ExtentType(
width=styles.LengthType(20, styles.LengthType.Units.em),
height=styles.LengthType(3, styles.LengthType.Units.em)))
def to_model(data_file: typing.IO, _config = None, progress_callback=lambda _: None):
"""Converts an SRT document to the data model"""
doc = model.ContentDocument()
region = model.Region(_DEFAULT_REGION_ID, doc)
region.set_style(
styles.StyleProperties.Origin,
styles.CoordinateType(
x=styles.LengthType(5, styles.LengthType.Units.pct),
y=styles.LengthType(5, styles.LengthType.Units.pct)
)
)
region.set_style(
styles.StyleProperties.Extent,
styles.ExtentType(
height=styles.LengthType(90, styles.LengthType.Units.pct),
width=styles.LengthType(90, styles.LengthType.Units.pct)
)
)
region.set_style(
styles.StyleProperties.DisplayAlign,
styles.DisplayAlignType.after
)
region.set_style(
styles.StyleProperties.TextAlign,
styles.TextAlignType.center
)
region.set_style(
styles.StyleProperties.LineHeight,
_DEFAULT_LINE_HEIGHT
)
region.set_style(
styles.StyleProperties.FontFamily,
_DEFAULT_FONT_STACK
)
region.set_style(
styles.StyleProperties.FontSize,
_DEFAULT_FONT_SIZE
)
region.set_style(
styles.StyleProperties.Color,
_DEFAULT_TEXT_COLOR
)
region.set_style(
styles.StyleProperties.TextOutline,
styles.TextOutlineType(
_DEFAULT_OUTLINE_THICKNESS,
_DEFAULT_OUTLINE_COLOR
)
)
doc.put_region(region)
body = model.Body(doc)
body.set_region(region)
doc.set_body(body)
div = model.Div(doc)
body.push_child(div)
lines : str = data_file.readlines()
state = _State.COUNTER
current_p = None
for line_index, line in enumerate(_none_terminated(lines)):
if state is _State.COUNTER:
if line is None:
break
if _EMPTY_RE.fullmatch(line):
continue
if _COUNTER_RE.search(line) is None:
LOGGER.fatal("Missing subtitle counter at line %s", line_index)
return None
progress_callback(line_index/len(lines))
state = _State.TC
continue
if state is _State.TC:
if line is None:
break
m = _TIMECODE_RE.search(line)
if m is None:
LOGGER.fatal("Missing timecode at line %s", line_index)
return None
current_p = model.P(doc)
current_p.set_begin(
int(m.group('begin_h')) * 3600 +
int(m.group('begin_m')) * 60 +
int(m.group('begin_s')) +
int(m.group('begin_ms')) / 1000
)
current_p.set_end(
int(m.group('end_h')) * 3600 +
int(m.group('end_m')) * 60 +
int(m.group('end_s')) +
int(m.group('end_ms')) / 1000
)
state = _State.TEXT
continue
if state in (_State.TEXT, _State.TEXT_MORE):
if line is None or _EMPTY_RE.fullmatch(line):
subtitle_text = subtitle_text.strip('\r\n')\
.replace(r"\n\r", "\n")\
.replace(r"{bold}", r"<bold>")\
.replace(r"{/bold}", r"</bold>")\
.replace(r"{italic}", r"<italic>")\
.replace(r"{/italic}", r"</italic>")\
.replace(r"{underline}", r"<underline>")\
.replace(r"{/underline}", r"</underline>")
parser = _TextParser(current_p, line_index)
parser.feed(subtitle_text)
parser.close()
state = _State.COUNTER
continue
if state is _State.TEXT:
div.push_child(current_p)
subtitle_text = ""
if state is _State.TEXT_MORE:
current_p.push_child(model.Br(current_p.get_doc()))
subtitle_text += line
state = _State.TEXT_MORE
continue
return doc