def _interpolate(self, factor, minKerning, maxKerning,
round=True, suppressError=True):
"""
This is the environment implementation of :meth:`BaseKerning.interpolate`.
* **factor** will be an :ref:`type-int-float`, ``tuple`` or ``list``.
* **minKerning** will be a :class:`BaseKerning` object.
* **maxKerning** will be a :class:`BaseKerning` object.
* **round** will be a ``bool`` indicating if the interpolated kerning
should be rounded.
* **suppressError** will be a ``bool`` indicating if incompatible data
should be ignored.
Subclasses may override this method.
"""
import fontMath
kerningGroupCompatibility = self._testKerningGroupCompatibility(
minKerning,
maxKerning,
suppressError=suppressError
)
if not kerningGroupCompatibility:
self.clear()
else:
minKerning = fontMath.MathKerning(
kerning=minKerning, groups=minKerning.font.groups)
maxKerning = fontMath.MathKerning(
kerning=maxKerning, groups=maxKerning.font.groups)
result = interpolate(minKerning, maxKerning, factor)
if round:
result.round()
self.clear()
result.extractKerning(self.font)
def _interpolate(self,
factor,
minKerning,
maxKerning,
round=True,
suppressError=True):
"""
This is the environment implementation of :meth:`BaseKerning.interpolate`.
* **factor** will be an :ref:`type-int-float`, ``tuple`` or ``list``.
* **minKerning** will be a :class:`BaseKerning` object.
* **maxKerning** will be a :class:`BaseKerning` object.
* **round** will be a ``bool`` indicating if the interpolated kerning
should be rounded.
* **suppressError** will be a ``bool`` indicating if incompatible data
should be ignored.
Subclasses may override this method.
"""
import fontMath
minKerning = fontMath.MathKerning(kerning=minKerning,
groups=minKerning.font.groups)
maxKerning = fontMath.MathKerning(kerning=maxKerning,
groups=maxKerning.font.groups)
result = interpolate(minKerning, maxKerning, factor)
if round:
result.round()
self.clear()
result.extractKerning(self.font)
def _interpolate(self, factor, minInfo, maxInfo, round=True, suppressError=True):
"""
Subclasses may override this method.
"""
minInfo = minInfo._toMathInfo()
maxInfo = maxInfo._toMathInfo()
result = interpolate(minInfo, maxInfo, factor)
if round:
result = result.round()
self._fromMathInfo(result)
def _interpolate(self, factor, minInfo, maxInfo, round=True, suppressError=True):
"""
Subclasses may override this method.
"""
minInfo = minInfo._toMathInfo()
maxInfo = maxInfo._toMathInfo()
result = interpolate(minInfo, maxInfo, factor)
if result is None and not suppressError:
raise FontPartsError(("Info from font '%s' and font '%s' could not be "
"interpolated.")
% (minInfo.font.name, maxInfo.font.name))
if round:
result = result.round()
self._fromMathInfo(result)
def _interpolate(self, factor, minInfo, maxInfo, round=True, suppressError=True):
"""
Subclasses may override this method.
"""
minInfo = minInfo._toMathInfo()
maxInfo = maxInfo._toMathInfo()
result = interpolate(minInfo, maxInfo, factor)
if result is None and not suppressError:
raise FontPartsError(("Info from font '%s' and font '%s' could not be "
"interpolated.")
% (minInfo.font.name, maxInfo.font.name))
if round:
result = result.round()
self._fromMathInfo(result)
def _interpolate(self,
factor,
minInfo,
maxInfo,
round=True,
suppressError=True):
"""
Subclasses may override this method.
"""
from fontMath.mathFunctions import setRoundIntegerFunction
setRoundIntegerFunction(normalizers.normalizeVisualRounding)
minInfo = minInfo._toMathInfo()
maxInfo = maxInfo._toMathInfo()
result = interpolate(minInfo, maxInfo, factor)
if result is None and not suppressError:
raise FontPartsError(
("Info from font '%s' and font '%s' could not be "
"interpolated.") % (minInfo.font.name, maxInfo.font.name))
if round:
result = result.round()
self._fromMathInfo(result)
def _interpolate(self,
factor,
minKerning,
maxKerning,
round=True,
suppressError=True):
"""
This is the environment implementation of :meth:`BaseKerning.interpolate`.
* **factor** will be an :ref:`type-int-float`, ``tuple`` or ``list``.
* **minKerning** will be a :class:`BaseKerning` object.
* **maxKerning** will be a :class:`BaseKerning` object.
* **round** will be a ``bool`` indicating if the interpolated kerning
should be rounded.
* **suppressError** will be a ``bool`` indicating if incompatible data
should be ignored.
Subclasses may override this method.
"""
import fontMath
from fontMath.mathFunctions import setRoundIntegerFunction
setRoundIntegerFunction(normalizers.normalizeVisualRounding)
kerningGroupCompatibility = self._testKerningGroupCompatibility(
minKerning, maxKerning, suppressError=suppressError)
if not kerningGroupCompatibility:
self.clear()
else:
minKerning = fontMath.MathKerning(kerning=minKerning,
groups=minKerning.font.groups)
maxKerning = fontMath.MathKerning(kerning=maxKerning,
groups=maxKerning.font.groups)
result = interpolate(minKerning, maxKerning, factor)
if round:
result.round()
self.clear()
result.extractKerning(self.font)