101 lines
3.1 KiB
Python
101 lines
3.1 KiB
Python
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"""Pens for creating UFO glyphs."""
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from robofab.objects.objectsBase import MOVE, LINE, CORNER, CURVE, QCURVE, OFFCURVE
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from robofab.objects.objectsRF import RContour, RSegment, RPoint
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from robofab.pens.pointPen import BasePointToSegmentPen
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from robofab.pens.adapterPens import SegmentToPointPen
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class RFUFOPen(SegmentToPointPen):
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def __init__(self, glyph):
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SegmentToPointPen.__init__(self, RFUFOPointPen(glyph))
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class RFUFOPointPen(BasePointToSegmentPen):
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"""Point pen for building objectsRF glyphs"""
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def __init__(self, glyph):
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BasePointToSegmentPen.__init__(self)
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self.glyph = glyph
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def _flushContour(self, segments):
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#
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# adapted from robofab.pens.adapterPens.PointToSegmentPen
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#
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assert len(segments) >= 1
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# if we only have one point and it has a name, we must have an anchor
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first = segments[0]
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segmentType, points = first
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pt, smooth, name, kwargs = points[0]
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if len(segments) == 1 and name != None:
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self.glyph.appendAnchor(name, pt)
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return
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# we must have a contour
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contour = RContour()
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contour.setParent(self.glyph)
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if segments[0][0] == "move":
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# It's an open path.
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closed = False
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points = segments[0][1]
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assert len(points) == 1
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movePt, smooth, name, kwargs = points[0]
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del segments[0]
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else:
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# It's a closed path, do a moveTo to the last
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# point of the last segment. only if it isn't a qcurve
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closed = True
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segmentType, points = segments[-1]
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movePt, smooth, name, kwargs = points[-1]
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## THIS IS STILL UNDECIDED!!!
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# since objectsRF currently follows the FL model of not
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# allowing open contours, remove the last segment
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# since it is being replaced by a move
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if segmentType == 'line':
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del segments[-1]
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# construct a move segment and apply it to the contou if we aren't dealing with a qcurve
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segment = RSegment()
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segment.setParent(contour)
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segment.smooth = smooth
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rPoint = RPoint(x=movePt[0], y=movePt[1], pointType=MOVE, name=name)
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rPoint.setParent(segment)
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segment.points = [rPoint]
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contour.segments.append(segment)
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# do the rest of the segments
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for segmentType, points in segments:
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points = [pt for pt, smooth, name, kwargs in points]
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if segmentType == "line":
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assert len(points) == 1
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sType = LINE
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elif segmentType == "curve":
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sType = CURVE
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elif segmentType == "qcurve":
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sType = QCURVE
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else:
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assert 0, "illegal segmentType: %s" % segmentType
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segment = RSegment()
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segment.setParent(contour)
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segment.smooth = smooth
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rPoints = []
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# handle the offCurves
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for point in points[:-1]:
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rPoint = RPoint(x=point[0], y=point[1], pointType=OFFCURVE, name=name)
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rPoint.setParent(segment)
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rPoints.append(rPoint)
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# now the onCurve
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point = points[-1]
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rPoint = RPoint(x=point[0], y=point[1], pointType=sType, name=name)
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rPoint.setParent(segment)
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rPoints.append(rPoint)
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# apply them to the segment
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segment.points = rPoints
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contour.segments.append(segment)
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self.glyph.contours.append(contour)
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def addComponent(self, glyphName, transform):
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xx, xy, yx, yy, dx, dy = transform
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self.glyph.appendComponent(baseGlyph=glyphName, offset=(dx, dy), scale=(xx, yy))
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