def _image_height(image, **kwargs):
root = kwargs.get('root')
path = os.path.abspath(
os.path.join(root.get_opt('path'),
StringValue(image).value))
size = __get_size(path, root=root)
return NumberValue([size[1], 'px'])
def parse(self, target):
if isinstance(target, ParseNode):
name = self.data[1].data[0][1:]
for i in xrange(int(float(self.data[2])),
int(float(self.data[3])) + 1):
body = self.data[4].copy()
body.ctx.update({name: NumberValue(i)})
body.parse(target)
def _percentage(value, **kwargs):
value = NumberValue(value)
if not value.units == '%':
value.value *= 100
value.units = '%'
return value
def _blue(color, **kwargs):
""" Gets the blue component of a color.
"""
return NumberValue(color.value[2])
def _green(color, **kwargs):
""" Gets the green component of a color.
"""
return NumberValue(color.value[1])
def _red(color, **kwargs):
""" Gets the red component of a color.
"""
return NumberValue(color.value[0])
def _comparable(n1, n2, **kwargs):
n1, n2 = NumberValue(n1), NumberValue(n2)
type1 = CONV_TYPE.get(n1.units)
type2 = CONV_TYPE.get(n2.units)
return BooleanValue(type1 == type2)
def _unitless(value, **kwargs):
if NumberValue(value).units:
return BooleanValue(False)
return BooleanValue(True)
def _unit(value, **kwargs):
return NumberValue(value).units
def _pi(**kwargs):
return NumberValue(math.pi)
def _percentage(value, **kwargs):
value = NumberValue(value)
if not value.units == '%':
value.value *= 100
value.units = '%'
return value
def _alpha(color, **kwargs):
c = ColorValue(color).value
return NumberValue(c[3])
def _saturation(color, **kwargs):
""" Get saturation value of HSL color.
"""
s = colorsys.rgb_to_hls(*map(lambda x: x / 255.0, color.value[:3]))[2]
return NumberValue((s * 100, '%'))
def _lightness(color, **kwargs):
""" Get lightness value of HSL color.
"""
l = colorsys.rgb_to_hls(*map(lambda x: x / 255.0, color.value[:3]))[1]
return NumberValue((l * 100, '%'))
def _hue(color, **kwargs):
""" Get hue value of HSL color.
"""
h = colorsys.rgb_to_hls(*map(lambda x: x / 255.0, color.value[:3]))[0]
return NumberValue(h * 360.0)
def _percentage(value, root=None):
value = NumberValue(value)
if not value.units == '%':
value.value *= 100
value.units = '%'
return value
