def italicizeGlyph(f,
g,
angle=10,
stemWidth=185,
meanYCenter=-825,
narrowAmount=1):
unic = g.unicode #save unicode
glyph = f[g.name]
slope = np.tanh(math.pi * angle / 180)
# determine how far on the x axis the glyph should slide
# to compensate for the slant.
# meanYCenter:
# -600 is a magic number that assumes a 2048 unit em square,
# and -825 for a 2816 unit em square. (UPM*0.29296875)
m = Transform(1, 0, slope, 1, 0, 0)
xoffset, junk = m.transformPoint((0, meanYCenter))
m = Transform(narrowAmount, 0, slope, 1, xoffset, 0)
if len(glyph) > 0:
g2 = italicize(f[g.name], angle, xoffset=xoffset, stemWidth=stemWidth)
f.insertGlyph(g2, g.name)
transformFLGlyphMembers(f[g.name], m)
if unic > 0xFFFF: #restore unicode
g.unicode = unic
def getGlyph(self, glyph, skew, rotation, addComponents=False):
skew = radians(skew)
rotation = radians(-rotation)
dest = glyph.copy()
if not addComponents:
for component in dest.components:
pointPen = DecomposePointPen(glyph.getParent(), dest.getPointPen(), component.transformation)
component.drawPoints(pointPen)
dest.removeComponent(component)
for contour in list(dest):
if contour.open:
dest.removeContour(contour)
if skew == 0 and rotation == 0:
return dest
for contour in dest:
for bPoint in contour.bPoints:
bcpIn = bPoint.bcpIn
bcpOut = bPoint.bcpOut
if bcpIn == (0, 0):
continue
if bcpOut == (0, 0):
continue
if bcpIn[0] == bcpOut[0] and bcpIn[1] != bcpOut[1]:
bPoint.anchorLabels = ["extremePoint"]
if rotation and bcpIn[0] != bcpOut[0] and bcpIn[1] == bcpOut[1]:
bPoint.anchorLabels = ["extremePoint"]
cx, cy = 0, 0
box = glyph.box
if box:
cx = box[0] + (box[2] - box[0]) * .5
cy = box[1] + (box[3] - box[1]) * .5
t = Transform()
t = t.skew(skew)
t = t.translate(cx, cy).rotate(rotation).translate(-cx, -cy)
# RF3
if version >= "3.0":
dest.transformBy(tuple(t))
# RF1
else:
dest.transform(t)
dest.extremePoints(round=0)
for contour in dest:
for point in contour.points:
if "extremePoint" in point.labels:
point.selected = True
point.smooth = True
else:
point.selected = False
dest.removeSelection()
dest.round()
return dest
def getKernel(radius, amplitude=1, depth=50, angle=0):
"""
>>> a = getKernel(5)
>>> a[(0,0)]
0.03662899097662087
>>> a[(2,0)]
0.02371649522786113
"""
t = Transform()
t = t.rotate(angle)
lines = getCircle(0, 0, radius)
sigma = (radius+1) / math.sqrt(2*math.log(depth))
grid = {}
total = 0
for y, (xMin, xMax) in lines.items():
for x in range(xMin, xMax+1, 1):
g = xyGaussian(x,y, amplitude, 0, 0, sigma, sigma)
grid[(x,y)]=grid.get((x,y), 0)+g
total += g
# scale the amplitude based on the total
grid = {k: float(v)/total for k, v in grid.items()}
# rotate the grid
grid = grid
new = {}
for k, v in grid.items():
k_ = t.transformPoint(k)
new[k_] = v
grid = new
return grid
def test_reverseTransform(self):
t = Transform(2, 0, 0, 3, 1, 6)
reverse_t = t.reverseTransform((4, 3, 2, 1, 5, 6))
assert reverse_t == Transform(8, 6, 6, 3, 21, 15)
t = Transform(4, 3, 2, 1, 5, 6)
reverse_t = t.transform((2, 0, 0, 3, 1, 6))
assert reverse_t == Transform(8, 6, 6, 3, 21, 15)
def transformationAtCenter(matrix, centerPoint):
"""Helper function for rotate(), scale() and skew() to apply a
transformation with a specified center point.
>>> transformationAtCenter((2, 0, 0, 2, 0, 0), (0, 0))
(2, 0, 0, 2, 0, 0)
>>> transformationAtCenter((2, 0, 0, 2, 0, 0), (100, 200))
(2, 0, 0, 2, -100, -200)
>>> transformationAtCenter((-2, 0, 0, 2, 0, 0), (100, 200))
(-2, 0, 0, 2, 300, -200)
>>> t = Transform(*transformationAtCenter((0, 1, 1, 0, 0, 0), (100, 200)))
>>> t.transformPoint((100, 200))
(100, 200)
>>> t.transformPoint((0, 0))
(-100, 100)
"""
if centerPoint == (0, 0):
return matrix
t = Transform()
cx, cy = centerPoint
t = t.translate(cx, cy)
t = t.transform(matrix)
t = t.translate(-cx, -cy)
return tuple(t)
def GlyphConstructionBuilder(construction, font):
# create a construction glyph
destination = ConstructionGlyph(font)
# test if the input is a proper string
try:
construction = str(construction)
except:
return destination
# parse the note
destination.note, construction = parseNote(construction)
# check if there is a = sing
if glyphNameSplit not in construction:
return destination
# remove all spaces and tabs
construction = removeSpacesAndTabs(construction)
# escape math formulas inside a ` `
construction = forceEscapingMathOperations(construction)
# extract the name
destination.name, construction = parseGlyphName(construction)
# extract glyph attributes
glyphAttributes, construction = parseGlyphattributes(construction, font)
# split into base glyphs, ligatures
baseGlyphs = construction.split(baseGlyphSplit)
advanceWidth = 0
# start
for baseGlyph in baseGlyphs:
# split into mark glyphs
markGlyphs = baseGlyph.split(markGlyphSplit)
baseGlyph = None
baseMarkGlyph = None
baseTransformMatrix = [1, 0, 0, 1, 0, 0]
markTransformMap = {}
advanceHeight = 0
for markGlyph in markGlyphs:
markGlyph = reEscapeMathOperations(markGlyph)
component, transformMatrix = parsePositions(baseMarkGlyph, markGlyph, font, markTransformMap, advanceWidth, advanceHeight)
destination.addComponent(component, transformMatrix)
markTransformMap[component] = transformMatrix
baseMarkGlyph = component
if baseGlyph is None:
baseGlyph = component
baseTransformMatrix = transformMatrix
if baseGlyph in font:
width = font[baseGlyph].width
t = Transform(*baseTransformMatrix)
width, y = t.transformPoint((width-advanceWidth, 0))
advanceWidth += width
destination.width = advanceWidth
for key, value in glyphAttributes.items():
setattr(destination, key, value)
return destination
def makeSVGShape(glyph, name=None, width=None, opacity=None):
attrs = {
'id':
'mathShape',
'title':
"None",
'xmlns':
"http://www.w3.org/2000/svg",
'xmlns:xlink':
"http://www.w3.org/1999/xlink",
'xml:space':
'preserve',
'style':
"fill-rule:nonzero;clip-rule:evenodd;stroke-linejoin:round;stroke-miterlimit:1.41421;",
}
# try to get the bounds from the bounds layer.
# if that does not work, get it from the glyph itself.
bounds = None
try:
boundsGlyph = glyph.getLayer('bounds')
if boundsGlyph is not None:
bounds = boundsGlyph.box
# print 'using bounds from bounds layer'
except:
pass
# print 'using bounds from glyph'
if bounds is None:
boundsPen = BoundsPen({})
glyph.draw(boundsPen)
bounds = boundsPen.bounds
xOffset = 0
yOffset = 0
attrs['id'] = name
if width is None:
attrs['width'] = "100%"
else:
attrs['width'] = width
if name is not None:
attrs['name'] = name
else:
attrs['name'] = glyph.name
if opacity is not None:
attrs['fill-opacity'] = "%3.3f" % opacity
t = Transform()
# print bounds, -(bounds[3]-bounds[1])
t = t.scale(1, -1)
t = t.translate(0, -bounds[3])
vb = (0, 0, glyph.width, bounds[3] - bounds[1])
attrs['viewBox'] = "%3.3f %3.3f %3.3f %3.3f" % (vb[0], vb[1], vb[2], vb[3])
attrs['enable-background'] = attrs['viewBox']
sPen = MathImageSVGPathPen({})
tPen = TransformPen(sPen, t)
glyph.draw(tPen)
path = "<path d=\"%s\"/>" % (sPen.getCommands())
tag = "<svg %s>%s</svg>" % (" ".join(
["%s=\"%s\"" % (k, v) for k, v in attrs.items()]), path)
return vb, tag
def _get_controlPointBounds(self):
from fontTools.misc.transform import Transform
# storage
glyphRects = {}
componentReferences = {}
# scan loaded glyphs
for glyphName, glyph in self._glyphs.items():
if glyphName in self._scheduledForDeletion:
continue
glyphRect = glyph.controlPointBounds
if glyphRect:
glyphRects[glyphName] = glyphRect
# scan glyphs that have not been loaded
if self._glyphSet is not None:
for glyphName, fileName in self._glyphSet.contents.items():
if glyphName in self._glyphs or glyphName in self._scheduledForDeletion:
continue
glif = self._glyphSet.getGLIF(glyphName)
points, components = _fetchControlPointBoundsData(glif)
if points:
glyphRects[glyphName] = calcBounds(points)
for base, transformation in components:
xScale, xyScale, yxScale, yScale, xOffset, yOffset = transformation
if glyphName not in componentReferences:
componentReferences[glyphName] = []
componentReferences[glyphName].append((base, xScale, xyScale, yxScale, yScale, xOffset, yOffset))
# get the transformed component bounding boxes and update the glyphs
for glyphName, components in componentReferences.items():
glyphRect = glyphRects.get(glyphName, (None, None, None, None))
# XXX this doesn't handle nested components
for base, xScale, xyScale, yxScale, yScale, xOffset, yOffset in components:
# base glyph doesn't exist
if base not in glyphRects:
continue
baseRect = glyphRects[base]
# base glyph has no points
if None in baseRect:
continue
# transform the base rect
transform = Transform(xx=xScale, xy=xyScale, yx=yxScale, yy=yScale, dx=xOffset, dy=yOffset)
xMin, yMin, xMax, yMax = baseRect
(xMin, yMin), (xMax, yMax) = transform.transformPoints([(xMin, yMin), (xMax, yMax)])
componentRect = (xMin, yMin, xMax, yMax)
# update the glyph rect
if None in glyphRect:
glyphRect = componentRect
else:
glyphRect = unionRect(glyphRect, componentRect)
# store the updated rect
glyphRects[glyphName] = glyphRect
# work out the unified rect
fontRect = None
for glyphRect in glyphRects.values():
if fontRect is None:
fontRect = glyphRect
elif glyphRect is not None:
fontRect = unionRect(fontRect, glyphRect)
# done
return fontRect
def skew(self, x=0, y=0, point=None):
t = Transform()
if not point:
point = self.bounds().point("C") # maybe should be getFrame()?
t = t.translate(point.x, point.y)
t = t.skew(x, y)
t = t.translate(-point.x, -point.y)
return self.transform(t)
def rotate(self, degrees, point=None):
t = Transform()
if not point:
point = self.point("C")
t = t.translate(point.x, point.y)
t = t.rotate(math.radians(degrees))
t = t.translate(-point.x, -point.y)
return self.transform(t)
def skew(self, x=0, y=0, unalign=True):
t = Transform()
if unalign != False:
point = self.bounds().point("SW") # maybe should be getFrame()?
t = t.translate(point.x, point.y)
t = t.skew(x, y)
if unalign != False:
t = t.translate(-point.x, -point.y)
return self.transform(t)
def rotate(self, degrees, point=None):
"""Rotate this shape by a degree (in 360-scale, counterclockwise)."""
t = Transform()
if not point:
point = self.bounds().point("C") # maybe should be getFrame()?
t = t.translate(point.x, point.y)
t = t.rotate(math.radians(degrees))
t = t.translate(-point.x, -point.y)
return self.transform(t, transformFrame=False)
def transform(self, transform, center=(0, 0)):
cx, cy = center
t = Transform()
t = t.translate(cx, cy)
t = t.transform(transform)
t = t.translate(-cx, -cy)
matrix = skia.Matrix()
matrix.setAffine(t)
self.path.transform(matrix)
def scale(self, scaleX, scaleY=None, point=None):
"""Scale this shape by a percentage amount (1-scale)."""
t = Transform()
if point != False:
point = self.bounds().point("C") if point == None else point # maybe should be getFrame()?
t = t.translate(point.x, point.y)
t = t.scale(scaleX, scaleY or scaleX)
if point != False:
t = t.translate(-point.x, -point.y)
return self.transform(t)
def adjust_anchors(anchor_data, ufo, component):
"""Adjust anchors to which a mark component may have been attached."""
glyph = ufo[component.baseGlyph]
t = Transform(*component.transformation)
for anchor in glyph.anchors:
# only adjust if this anchor has data and the component also contains
# the associated mark anchor (e.g. "_top" for "top")
if (anchor.name in anchor_data and
any(a.name == '_' + anchor.name for a in glyph.anchors)):
anchor_data[anchor.name] = t.transformPoint((anchor.x, anchor.y))
def rotate(self, degrees, point=None):
if Transform:
t = Transform()
if not point:
point = self.mid
t = t.translate(point.x, point.y)
t = t.rotate(math.radians(degrees))
t = t.translate(-point.x, -point.y)
return self.transform(t)
else:
raise Exception("fontTools not installed")
def adjust_anchors(anchor_data, ufo, component):
"""Adjust anchors to which a mark component may have been attached."""
glyph = ufo[component.baseGlyph]
t = Transform(*component.transformation)
for anchor in glyph.anchors:
# only adjust if this anchor has data and the component also contains
# the associated mark anchor (e.g. "_top" for "top")
if (anchor.name in anchor_data and
any(a.name == '_' + anchor.name for a in glyph.anchors)):
anchor_data[anchor.name] = t.transformPoint((anchor.x, anchor.y))
def makeSVGShape(glyph, name=None, width=None, opacity=None):
attrs = {
'id': 'mathShape',
'title': "None",
'xmlns': "http://www.w3.org/2000/svg",
'xmlns:xlink' : "http://www.w3.org/1999/xlink",
'xml:space':'preserve',
'style': "fill-rule:nonzero;clip-rule:evenodd;stroke-linejoin:round;stroke-miterlimit:1.41421;",
}
# try to get the bounds from the bounds layer.
# if that does not work, get it from the glyph itself.
bounds = None
try:
boundsGlyph = glyph.getLayer('bounds')
if boundsGlyph is not None:
bounds = boundsGlyph.box
# print 'using bounds from bounds layer'
except:
pass
# print 'using bounds from glyph'
if bounds is None:
boundsPen = BoundsPen({})
glyph.draw(boundsPen)
bounds = boundsPen.bounds
xOffset = 0
yOffset = 0
attrs['id']= name;
if width is None:
attrs['width'] = "100%"
else:
attrs['width'] = width
if name is not None:
attrs['name'] = name
else:
attrs['name'] = glyph.name
if opacity is not None:
attrs['fill-opacity'] = "%3.3f"%opacity
t = Transform()
# print bounds, -(bounds[3]-bounds[1])
t = t.scale(1,-1)
t = t.translate(0, -bounds[3])
vb = (0, 0, glyph.width, bounds[3]-bounds[1])
attrs['viewBox'] = "%3.3f %3.3f %3.3f %3.3f"%(vb[0],vb[1],vb[2],vb[3])
attrs['enable-background'] = attrs['viewBox']
sPen = MathImageSVGPathPen({})
tPen = TransformPen(sPen, t)
glyph.draw(tPen)
path = "<path d=\"%s\"/>"%(sPen.getCommands())
tag = "<svg %s>%s</svg>"%(" ".join(["%s=\"%s\""%(k,v) for k, v in attrs.items()]), path)
return vb, tag
def test_reverseTransform(self):
t = Transform(2, 0, 0, 3, 1, 6)
reverse_t = t.reverseTransform((4, 3, 2, 1, 5, 6))
assert reverse_t == Transform(8, 6, 6, 3, 21, 15)
t = Transform(4, 3, 2, 1, 5, 6)
reverse_t = t.transform((2, 0, 0, 3, 1, 6))
assert reverse_t == Transform(8, 6, 6, 3, 21, 15)
def _adjust_anchors(anchor_data, glyphSet, component):
"""
Adjust base anchors to which a mark component may have been attached, by
moving the base anchor attached to a mark anchor to the position of
the mark component's base anchor.
"""
glyph = glyphSet[component.baseGlyph]
t = Transform(*component.transformation)
for anchor in glyph.anchors:
# only adjust if this anchor has data and the component also contains
# the associated mark anchor (e.g. "_top" for "top")
if anchor.name in anchor_data and any(a.name == "_" + anchor.name
for a in glyph.anchors):
anchor_data[anchor.name] = t.transformPoint((anchor.x, anchor.y))
def filter(self, glyph):
if not glyph.components:
return False
ufo2ft.util.deepCopyContours(self.context.glyphSet, glyph, glyph,
Transform())
glyph.clearComponents()
return True
def SelectedComponentsQPainterPathFactory(glyph):
pen = OnlyComponentsQtPen(glyph.layer)
pointPen = PointToSegmentPen(pen)
selectedPen = OnlyComponentsQtPen(glyph.layer)
selectedPointPen = PointToSegmentPen(selectedPen)
originPts = []
for component in glyph.components:
if component.selected:
component.drawPoints(selectedPointPen)
t = Transform(*component.transformation)
originPts.append(t.transformPoint((0, 0)))
else:
component.drawPoints(pointPen)
pen.path.setFillRule(Qt.WindingFill)
selectedPen.path.setFillRule(Qt.WindingFill)
return (pen.path, selectedPen.path, originPts)
def propogateAnchors(layer):
for component in layer.components:
clayer = component.layer or component.component.layers[0]
propogateAnchors(clayer)
for anchor in clayer.anchors:
names = [a.name for a in layer.anchors]
name = anchor.name
if name.startswith("_") or name in names:
continue
x, y = anchor.position.x, anchor.position.y
if component.transform != DEFAULT_TRANSFORM:
t = Transform(*component.transform.value)
x, y = t.transformPoint((x, y))
new = GSAnchor(name)
new.position.x, new.position.y = (x, y)
layer.anchors[name] = new
def condenseFont(font, scale=.8, stemWidth=185):
f = font.copy()
xscale = scale
CAPS = ("A B C.cn D.cn E F G.cn H I J K L M N O.cn P Q.cn R S T U.cn V W X "
"Y Z one two three four five six seven eight nine zero").split()
LC = ("a.cn b.cn c.cn d.cn e.cn f g.cn h i j k l m n o.cn p.cn q.cn r s t "
"u v w x y z").split()
# for g in [f[name] for name in LC]:
for g in f:
if len(g) > 0:
# print g.name
if g.name in lessCondensed:
scale = xscale * 1.1
if g.name in uncondensed:
continue
if g.name in moreCondensed:
scale = xscale * .90
# g2 = condenseGlyph(g, xscale)
# g.clear()
# g2.drawPoints(g.getPointPen())
m = Transform(xscale, 0, 0, 1, 20, 0)
g.transform(m)
transformFLGlyphMembers(g, m, transformAnchors=False)
if g.width != 0:
g.width += 40
return f
def build_font(srcs, metadata, filename):
ascent = 880
descent = 120
upem = ascent + descent
scale = upem / 360.0
transform = Transform(scale, 0, 0, -scale, 0, ascent)
glyphs = collect_glyphs(srcs, transform=transform)
builder = FontBuilder(1000, isTTF=False)
builder.setupGlyphOrder([glyph.name for glyph in glyphs])
builder.setupCharacterMap({0: ".notdef"})
psname = metadata["psName"]
builder.setupCFF(psname, {"FullName": psname},
{glyph.name: glyph.charstring
for glyph in glyphs}, {})
builder.setupHorizontalMetrics(
{glyph.name: glyph.get_hmetrics()
for glyph in glyphs})
builder.setupHorizontalHeader(ascent=ascent, descent=-descent)
builder.setupNameTable({})
builder.setupOS2()
builder.setupPost()
builder.setupVerticalMetrics(
{glyph.name: glyph.get_vmetrics(ascent=ascent)
for glyph in glyphs})
builder.setupVerticalOrigins({}, ascent)
builder.setupVerticalHeader(ascent=ascent, descent=-descent)
builder.save(filename)
class Component(object):
baseGlyph = attr.ib(type=str)
transformation = attr.ib(
default=Identity,
converter=lambda t: t if isinstance(t, Transform) else Transform(*t),
type=Transform,
)
identifier = attr.ib(default=None, type=Optional[str])
# -----------
# Pen methods
# -----------
def draw(self, pen):
pointPen = PointToSegmentPen(pen)
self.drawPoints(pointPen)
def drawPoints(self, pointPen):
try:
pointPen.addComponent(
self.baseGlyph, self.transformation, identifier=self.identifier
)
except TypeError:
pointPen.addComponent(self.baseGlyph, self.transformation)
warnings.warn(
"The addComponent method needs an identifier kwarg. "
"The component's identifier value has been discarded.",
UserWarning,
)
def decompose_glyphs(self, ufos):
"""Move components of UFOs' glyphs to their outlines."""
for ufo in ufos:
print('>> Decomposing glyphs for ' + self._font_name(ufo))
for glyph in ufo:
self._deep_copy_contours(ufo, glyph, glyph, Transform())
glyph.clearComponents()
def _getBounds(self, boundsAttr):
layer = self.layer
if layer is None:
return None
if self.baseGlyph not in layer:
return None
glyph = layer[self.baseGlyph]
bounds = getattr(glyph, boundsAttr)
if bounds is None:
return None
if self.transformation == _defaultTransformation:
return bounds
xMin, yMin, xMax, yMax = bounds
t = Transform(*self.transformation)
points = [(xMin, yMin), (xMax, yMax)]
(xMin, yMin), (xMax, yMax) = t.transformPoints(points)
return xMin, yMin, xMax, yMax
def __init__(self, outPen, transformation):
if not hasattr(transformation, "transformPoint"):
from fontTools.misc.transform import Transform
transformation = Transform(*transformation)
self._transformation = transformation
self._transformPoint = transformation.transformPoint
self._outPen = outPen
self._stack = []
def addComponent(self, baseGlyph, transformation, identifier=None, **kwargs):
if baseGlyph in self.modified:
# multiply the component's transformation matrix with the inverse
# of the filter's transformation matrix to compensate for the
# transformation already applied to the base glyph
transformation = Transform(*transformation).transform(self._inverted)
super().addComponent(baseGlyph, transformation, identifier=identifier, **kwargs)
def _getBounds(self, boundsAttr):
layer = self.layer
if layer is None:
return None
if self.baseGlyph not in layer:
return None
glyph = layer[self.baseGlyph]
bounds = getattr(glyph, boundsAttr)
if bounds is None:
return None
if self.transformation == _defaultTransformation:
return bounds
xMin, yMin, xMax, yMax = bounds
t = Transform(*self.transformation)
points = [(xMin, yMin), (xMax, yMax)]
(xMin, yMin), (xMax, yMax) = t.transformPoints(points)
return xMin, yMin, xMax, yMax
def _adjust_anchors(anchor_data, ufo, parent, component):
"""Adjust anchors to which a mark component may have been attached."""
glyph = ufo[component.baseGlyph]
t = Transform(*component.transformation)
_componentAnchor = _componentAnchorFromLib(parent, component)
for anchor in glyph.anchors:
# adjust either if component is attached to a specific named anchor
# (e.g. top_2 for a ligature glyph)
# rather than to the standard anchors (top/bottom)
if _componentAnchor and _componentAnchor in anchor_data:
anchor_data[_componentAnchor] = t.transformPoint(
(anchor.x, anchor.y))
# ... or this anchor has data and the component also contains
# the associated mark anchor (e.g. "_top" for "top") ...
elif anchor.name in anchor_data and any(a.name == "_" + anchor.name
for a in glyph.anchors):
anchor_data[anchor.name] = t.transformPoint((anchor.x, anchor.y))
def get_anchor_data(anchor_data, ufo, components, anchor_name):
"""Get data for an anchor from a list of components."""
anchors = []
for component in components:
for anchor in ufo[component.baseGlyph].anchors:
if anchor.name == anchor_name:
anchors.append((anchor, component))
break
if len(anchors) > 1:
for i, (anchor, component) in enumerate(anchors):
t = Transform(*component.transformation)
name = '%s_%d' % (anchor.name, i + 1)
anchor_data[name] = t.transformPoint((anchor.x, anchor.y))
elif anchors:
anchor, component = anchors[0]
t = Transform(*component.transformation)
anchor_data[anchor.name] = t.transformPoint((anchor.x, anchor.y))
def addComponent(self, glyphName, transformation):
self._outPen.addComponent(
glyphName,
Transform(
*transformation[:4],
self.roundFunc(transformation[4]),
self.roundFunc(transformation[5]),
),
)
def translate(self, x, y=None, transformFrame=True):
"""Translate this shape by `x` and `y` (pixel values)."""
if y is None:
y = x
img = self.img()
if img:
img["rect"] = img["rect"].offset(x, y)
return self.transform(Transform(1, 0, 0, 1, x, y),
transformFrame=transformFrame)
def _flattenComponent(glyphSet, component):
"""Returns a list of tuples (baseGlyph, transform) of nested component."""
glyph = glyphSet[component.baseGlyph]
# Any contour will cause components to be decomposed
if not glyph.components or len(glyph) > 0:
transformation = Transform(*component.transformation)
return [(component.baseGlyph, transformation)]
all_flattened_components = []
for nested in glyph.components:
flattened_components = _flattenComponent(glyphSet, nested)
for i, (name, tr) in enumerate(flattened_components):
flat_tr = Transform(*component.transformation)
flat_tr = flat_tr.translate(tr.dx, tr.dy)
flat_tr = flat_tr.transform((tr.xx, tr.xy, tr.yx, tr.yy, 0, 0))
flattened_components[i] = (name, flat_tr)
all_flattened_components.extend(flattened_components)
return all_flattened_components
def decompose_glyphs(self, ufos, glyph_filter=lambda g: True):
"""Move components of UFOs' glyphs to their outlines."""
for ufo in ufos:
logger.info('Decomposing glyphs for ' + self._font_name(ufo))
for glyph in ufo:
if not glyph.components or not glyph_filter(glyph):
continue
self._deep_copy_contours(ufo, glyph, glyph, Transform())
glyph.clearComponents()
def getGlyph(self, glyph, skew, rotation, addComponents=False):
skew = radians(skew)
rotation = radians(-rotation)
dest = glyph.copy()
if skew == 0 and rotation == 0:
return dest
for contour in dest:
for bPoint in contour.bPoints:
bcpIn = bPoint.bcpIn
bcpOut = bPoint.bcpOut
if bcpIn == (0, 0):
continue
if bcpOut == (0, 0):
continue
if bcpIn[0] == bcpOut[0] and bcpIn[1] != bcpOut[1]:
bPoint.anchorLabels = ["extremePoint"]
if rotation and bcpIn[0] != bcpOut[0] and bcpIn[1] == bcpOut[1]:
bPoint.anchorLabels = ["extremePoint"]
cx, cy = 0, 0
box = dest.box
if box:
cx = box[0] + (box[2] - box[0]) * .5
cy = box[1] + (box[3] - box[1]) * .5
t = Transform()
t = t.skew(skew)
t = t.translate(cx, cy).rotate(rotation).translate(-cx, -cy)
dest.transform(t)
dest.extremePoints(round=0)
for contour in dest:
for point in contour.points:
if "extremePoint" in point.labels:
point.selected = True
point.smooth = True
else:
point.selected = False
dest.removeSelection()
dest.round()
return dest
def addComponent(self, baseGlyphName, transformation, **kwargs):
self._outPen.addComponent(
baseGlyphName,
Transform(
*transformation[:4],
self.roundFunc(transformation[4]),
self.roundFunc(transformation[5]),
),
**kwargs,
)
def _getBounds(self, boundsAttr):
glyph = self.getParent()
if glyph is None:
return None
font = glyph.getParent()
if font is None:
return None
if self.baseGlyph not in font:
return None
glyph = font[self.baseGlyph]
bounds = getattr(glyph, boundsAttr)
if bounds is None:
return None
if self.transformation == _defaultTransformation:
return bounds
xMin, yMin, xMax, yMax = bounds
t = Transform(*self.transformation)
points = [(xMin, yMin), (xMax, yMax)]
(xMin, yMin), (xMax, yMax) = t.transformPoints(points)
return xMin, yMin, xMax, yMax
def propagate_anchors(ufo):
"""Copy anchors from parent glyphs' components to the parent."""
from fontTools.misc.transform import Transform
def get_anchor(glyph, name):
return next((a for a in glyph.anchors if a.name == name), None)
for parent in ufo:
added_here = {}
# don't propagate anchors for mark glyphs
if any(a.name.startswith('_') for a in parent.anchors):
continue
# try to get anchors from base (first) components
glyph = parent
transformation = Transform()
while glyph.components:
component = glyph.components[0]
glyph = ufo[component.baseGlyph]
transformation = transformation.transform(component.transformation)
for anchor in glyph.anchors:
if get_anchor(parent, anchor.name) is None:
added_here[anchor.name] = transformation.transformPoint(
(anchor.x, anchor.y))
# adjust anchors to which a mark has been attached
for component in parent.components[1:]:
glyph = ufo[component.baseGlyph]
transformation = Transform(*component.transformation)
for anchor in glyph.anchors:
if (anchor.name in added_here and
get_anchor(glyph, '_' + anchor.name) is not None):
added_here[anchor.name] = transformation.transformPoint(
(anchor.x, anchor.y))
for name, (x, y) in added_here.items():
anchor_dict = {'name': name, 'x': x, 'y': y}
parent.appendAnchor(glyph.anchorClass(anchorDict=anchor_dict))
def italicizeGlyph(f, g, angle=10, stemWidth=185):
unic = g.unicode #save unicode
glyph = f[g.name]
slope = np.tanh(math.pi * angle / 180)
# determine how far on the x axis the glyph should slide
# to compensate for the slant. -600 is a magic number
# that assumes a 2048 unit em square
MEAN_YCENTER = -600
m = Transform(1, 0, slope, 1, 0, 0)
xoffset, junk = m.transformPoint((0, MEAN_YCENTER))
m = Transform(.97, 0, slope, 1, xoffset, 0)
if len(glyph) > 0:
g2 = italicize(f[g.name], angle, xoffset=xoffset, stemWidth=stemWidth)
f.insertGlyph(g2, g.name)
transformFLGlyphMembers(f[g.name], m)
if unic > 0xFFFF: #restore unicode
g.unicode = unic
def test_rotate(self):
t = Transform()
assert t.rotate(math.pi / 2) == Transform(0, 1, -1, 0, 0, 0)
t = Transform()
assert t.rotate(-math.pi / 2) == Transform(0, -1, 1, 0, 0, 0)
t = Transform()
assert tuple(t.rotate(math.radians(30))) == pytest.approx(
tuple(Transform(0.866025, 0.5, -0.5, 0.866025, 0, 0)))
def transformationAtCenter(matrix, centerPoint):
"""Helper function for rotate(), scale() and skew() to apply a transformation
with a specified center point.
>>> transformationAtCenter((2, 0, 0, 2, 0, 0), (0, 0))
(2, 0, 0, 2, 0, 0)
>>> transformationAtCenter((2, 0, 0, 2, 0, 0), (100, 200))
(2, 0, 0, 2, -100, -200)
>>> transformationAtCenter((-2, 0, 0, 2, 0, 0), (100, 200))
(-2, 0, 0, 2, 300, -200)
>>> t = Transform(*transformationAtCenter((0, 1, 1, 0, 0, 0), (100, 200)))
>>> t.transformPoint((100, 200))
(100, 200)
>>> t.transformPoint((0, 0))
(-100, 100)
"""
if centerPoint == (0, 0):
return matrix
t = Transform()
cx, cy = centerPoint
t = t.translate(cx, cy)
t = t.transform(matrix)
t = t.translate(-cx, -cy)
return tuple(t)
def test_toPS(self):
t = Transform().scale(2, 3).translate(4, 5)
assert t.toPS() == '[2 0 0 3 8 15]'
def test_transformPoints(self):
t = Transform(2, 0, 0, 3, 0, 0)
assert t.transformPoints(
[(0, 0), (0, 100), (100, 100), (100, 0)]
) == [(0, 0), (0, 300), (200, 300), (200, 0)]
def GlyphConstructionBuilder(construction, font):
# create a construction glyph
destination = ConstructionGlyph(font)
# test if the input is a proper string
try:
construction = str(construction)
except Exception:
return destination
# parse decomposing
shouldDecompose, construction = parseShouldDecompose(construction)
# parse the note
destination.note, construction = parseNote(construction)
# check if there is a = sing
if glyphNameSplit not in construction:
return destination
# remove all spaces and tabs
construction = removeSpacesAndTabs(construction)
# escape math formulas inside a ` `
construction = forceEscapingMathOperations(construction)
# extract the name
destination.name, construction = parseGlyphName(construction)
# extract glyph attributes
glyphAttributes, construction = parseGlyphattributes(construction, font)
# split into base glyphs, ligatures
baseGlyphs = construction.split(baseGlyphSplit)
advanceWidth = 0
previousBaseGlyph = None
# start
for baseGlyph in baseGlyphs:
applyKerning, baseGlyph = parseApplyKerning(baseGlyph)
# split into mark glyphs
markGlyphs = baseGlyph.split(markGlyphSplit)
baseGlyph = None
baseMarkGlyph = None
baseTransformMatrix = [1, 0, 0, 1, 0, 0]
markTransformMap = {}
advanceHeight = 0
for markGlyph in markGlyphs:
markGlyph = reEscapeMathOperations(markGlyph)
component, transformMatrix = parsePositions(baseMarkGlyph, markGlyph, font, markTransformMap, advanceWidth, advanceHeight)
baseMarkGlyph = component
if baseGlyph is None:
baseGlyph = component
if applyKerning:
kern = kernValueForGlyphPair(font, (previousBaseGlyph, baseGlyph))
if kern:
t = Transform(*transformMatrix).translate(kern, 0)
transformMatrix = t[:]
baseTransformMatrix = transformMatrix
destination.addComponent(component, transformMatrix)
markTransformMap[component] = transformMatrix
if baseGlyph in font:
width = font[baseGlyph].width
t = Transform(*baseTransformMatrix)
width, y = t.transformPoint((width - advanceWidth, 0))
advanceWidth += width
previousBaseGlyph = baseGlyph
destination.width = advanceWidth
for key, value in glyphAttributes.items():
setattr(destination, key, value)
if shouldDecompose:
destination._shouldDecompose = True
return destination
def test_scale(self):
t = Transform()
assert t.scale(5) == Transform(5, 0, 0, 5, 0, 0)
assert t.scale(5, 6) == Transform(5, 0, 0, 6, 0, 0)
def test_inverse(self):
t = Transform().translate(2, 3).scale(4, 5)
assert t.transformPoint((10, 20)) == (42, 103)
it = t.inverse()
assert it.transformPoint((42, 103)) == (10.0, 20.0)
assert Transform().inverse() == Transform()
def transform_bbox(bbox, matrix): t = Transform(*matrix) ll_x, ll_y = t.transformPoint((bbox[0], bbox[1])) tr_x, tr_y = t.transformPoint((bbox[2], bbox[3])) return normRect((ll_x, ll_y, tr_x, tr_y))
def test_examples(self):
t = Transform()
assert repr(t) == "<Transform [1 0 0 1 0 0]>"
assert t.scale(2) == Transform(2, 0, 0, 2, 0, 0)
assert t.scale(2.5, 5.5) == Transform(2.5, 0, 0, 5.5, 0, 0)
assert t.scale(2, 3).transformPoint((100, 100)) == (200, 300)
def test_translate(self):
t = Transform()
assert t.translate(20, 30) == Transform(1, 0, 0, 1, 20, 30)
def test_transform(self):
t = Transform(2, 0, 0, 3, 1, 6)
assert t.transform((4, 3, 2, 1, 5, 6)) == Transform(8, 9, 4, 3, 11, 24)
def parsePositions(baseGlyph, markGlyph, font, markTransformMap, advanceWidth, advanceHeight):
xx, xy, yx, yy, x, y = 1, 0, 0, 1, advanceWidth, advanceHeight
baseGlyphX = baseGlyphY = baseGlyph
markFixedX = markFixedY = False
flipX = flipY = False
if positionSplit in markGlyph:
markGlyph, position = markGlyph.split(positionSplit)
if positionXYSplit in position:
positions = position.split(positionXYSplit)
if len(positions) == 6:
xx, xy, yx, yy, positionX, positionY = positions
xx = float(xx)
xy = float(xy)
yx = float(yx)
yy = float(yy)
elif len(positions) == 2:
positionX, positionY = positions
else:
raise GlyphBuilderError("mark positions should have 6 or 2 options")
else:
positionX = positionY = position
if positionBaseSplit in positionX:
baseGlyphX, positionX = positionX.split(positionBaseSplit)
if positionBaseSplit in positionY:
baseGlyphY, positionY = positionY.split(positionBaseSplit)
if flipMarkGlyphSplit in positionX:
flipY = True
positionX = positionX.replace(flipMarkGlyphSplit, "")
if flipMarkGlyphSplit in positionY:
flipX = True
positionY = positionY.replace(flipMarkGlyphSplit, "")
if positionX and positionY:
baseX = baseY = 0
markX = markY = 0
if markGlyph not in font:
if glyphSuffixSplit in markGlyph:
markGlyph = markGlyph.split(glyphSuffixSplit)[0]
markPoint1, markAngle1, markFixedX = parsePosition(markGlyph, font, positionX, direction="x", prefix="_")
markPoint2, markAngle2, markFixedY = parsePosition(markGlyph, font, positionY, direction="y", prefix="_")
intersection = _intersectAngles(markPoint1, markAngle1, markPoint2, markAngle2)
if intersection is not None:
markX, markY = intersection
if baseGlyphX in font and baseGlyphY in font:
basePoint1, baseAngle1, _ = parsePosition(baseGlyphX, font, positionX, direction="x", isBase=True)
basePoint2, baseAngle2, _ = parsePosition(baseGlyphY, font, positionY, direction="y", isBase=True)
intersection = _intersectAngles(basePoint1, baseAngle1, basePoint2, baseAngle2)
if intersection is not None:
baseX, baseY = intersection
# calculate the offset
if not markFixedX:
x += baseX - markX
else:
x += markX
if not markFixedY:
y += baseY - markY
else:
y += markY
if not markFixedX:
baseTransform = markTransformMap.get(baseGlyphX)
if baseTransform:
x += baseTransform[4] - advanceWidth
if not markFixedY:
baseTransform = markTransformMap.get(baseGlyphY)
if baseTransform:
y += baseTransform[5] - advanceHeight
transformMatrix = (xx, xy, yx, yy, x, y)
if flipX:
bounds = font[markGlyph].bounds
if bounds:
minx, miny, maxx, maxy = bounds
bt = Transform(*transformMatrix)
minx, miny = bt.transformPoint((minx, miny))
maxx, maxy = bt.transformPoint((maxx, maxy))
t = Transform()
t = t.translate(0, miny)
t = t.scale(1, -1)
t = t.translate(0, -maxy)
t = t.transform(bt)
transformMatrix = t[:]
if flipY:
bounds = font[markGlyph].bounds
if bounds:
minx, miny, maxx, maxy = bounds
bt = Transform(*transformMatrix)
minx, miny = bt.transformPoint((minx, miny))
maxx, maxy = bt.transformPoint((maxx, maxy))
t = Transform()
t = t.translate(minx, 0)
t = t.scale(-1, 1)
t = t.translate(-maxx, 0)
t = t.transform(bt)
transformMatrix = t[:]
return markGlyph, transformMatrix
