Esempio n. 1
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def _GetCoordinates(font, glyphName):
	"""font, glyphName --> glyph coordinates as expected by "gvar" table

	The result includes four "phantom points" for the glyph metrics,
	as mandated by the "gvar" spec.
	"""
	glyf = font["glyf"]
	if glyphName not in glyf.glyphs: return None
	glyph = glyf[glyphName]
	if glyph.isComposite():
		coord = GlyphCoordinates([(getattr(c, 'x', 0),getattr(c, 'y', 0)) for c in glyph.components])
		control = (glyph.numberOfContours,[c.glyphName for c in glyph.components])
	else:
		allData = glyph.getCoordinates(glyf)
		coord = allData[0]
		control = (glyph.numberOfContours,)+allData[1:]

	# Add phantom points for (left, right, top, bottom) positions.
	horizontalAdvanceWidth, leftSideBearing = font["hmtx"].metrics[glyphName]
	if not hasattr(glyph, 'xMin'):
		glyph.recalcBounds(glyf)
	leftSideX = glyph.xMin - leftSideBearing
	rightSideX = leftSideX + horizontalAdvanceWidth
	# XXX these are incorrect.  Load vmtx and fix.
	topSideY = glyph.yMax
	bottomSideY = -glyph.yMin
	coord = coord.copy()
	coord.extend([(leftSideX, 0),
	              (rightSideX, 0),
	              (0, topSideY),
	              (0, bottomSideY)])

	return coord, control
Esempio n. 2
0
def _GetCoordinates(font, glyphName):
	"""font, glyphName --> glyph coordinates as expected by "gvar" table

	The result includes four "phantom points" for the glyph metrics,
	as mandated by the "gvar" spec.
	"""
	glyf = font["glyf"]
	if glyphName not in glyf.glyphs: return None
	glyph = glyf[glyphName]
	if glyph.isComposite():
		coord = GlyphCoordinates([(getattr(c, 'x', 0),getattr(c, 'y', 0)) for c in glyph.components])
		control = [c.glyphName for c in glyph.components]
	else:
		allData = glyph.getCoordinates(glyf)
		coord = allData[0]
		control = allData[1:]

	# Add phantom points for (left, right, top, bottom) positions.
	horizontalAdvanceWidth, leftSideBearing = font["hmtx"].metrics[glyphName]
	if not hasattr(glyph, 'xMin'):
		glyph.recalcBounds(glyf)
	leftSideX = glyph.xMin - leftSideBearing
	rightSideX = leftSideX + horizontalAdvanceWidth
	# XXX these are incorrect.  Load vmtx and fix.
	topSideY = glyph.yMax
	bottomSideY = -glyph.yMin
	coord = coord.copy()
	coord.extend([(leftSideX, 0),
	              (rightSideX, 0),
	              (0, topSideY),
	              (0, bottomSideY)])

	return coord, control
Esempio n. 3
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def _GetCoordinates(font, glyphName, defaultVerticalOrigin=None):
    """font, glyphName --> glyph coordinates as expected by "gvar" table

	The result includes four "phantom points" for the glyph metrics,
	as mandated by the "gvar" spec.
	"""
    glyf = font["glyf"]
    if glyphName not in glyf.glyphs: return None
    glyph = glyf[glyphName]
    if glyph.isComposite():
        coord = GlyphCoordinates([(getattr(c, 'x', 0), getattr(c, 'y', 0))
                                  for c in glyph.components])
        control = (glyph.numberOfContours,
                   [c.glyphName for c in glyph.components])
    else:
        allData = glyph.getCoordinates(glyf)
        coord = allData[0]
        control = (glyph.numberOfContours, ) + allData[1:]

    # Add phantom points for (left, right, top, bottom) positions.
    phantomPoints = _get_phantom_points(font, glyphName, defaultVerticalOrigin)
    coord = coord.copy()
    coord.extend(phantomPoints)

    return coord, control
Esempio n. 4
0
def _GetCoordinates(font, glyphName, defaultVerticalOrigin=None):
	"""font, glyphName --> glyph coordinates as expected by "gvar" table

	The result includes four "phantom points" for the glyph metrics,
	as mandated by the "gvar" spec.
	"""
	glyf = font["glyf"]
	if glyphName not in glyf.glyphs: return None
	glyph = glyf[glyphName]
	if glyph.isComposite():
		coord = GlyphCoordinates([(getattr(c, 'x', 0),getattr(c, 'y', 0)) for c in glyph.components])
		control = (glyph.numberOfContours,[c.glyphName for c in glyph.components])
	else:
		allData = glyph.getCoordinates(glyf)
		coord = allData[0]
		control = (glyph.numberOfContours,)+allData[1:]

	# Add phantom points for (left, right, top, bottom) positions.
	phantomPoints = _get_phantom_points(font, glyphName, defaultVerticalOrigin)
	coord = coord.copy()
	coord.extend(phantomPoints)

	return coord, control