U Dv f@s>ddlmZddlmZddgZGdddeZd ddZdS) )pairwise)ContourFilterPenreversedContourReverseContourPencs*eZdZdZdfdd ZddZZS)raFilter pen that passes outline data to another pen, but reversing the winding direction of all contours. Components are simply passed through unchanged. Closed contours are reversed in such a way that the first point remains the first point. Fcst|||_dSN)super__init__outputImpliedClosingLine)selfZoutPenr  __class__D/tmp/pip-unpacked-wheel-qlge9rch/fontTools/pens/reverseContourPen.pyrs zReverseContourPen.__init__cCs t||jSr)rr )r contourr r r filterContourszReverseContourPen.filterContour)F)__name__ __module__ __qualname____doc__rr __classcell__r r r rrsFccs|sdSt|dkstd|d}|dks4t|dk}|d\}}|dks^td||d }|d kr|dks~td |rtd |dftt|dd d }|s|dkrd}nd}||fVn0|d \}}|d } |r||fV|| kr(d| ffV|t|dd |ff|d <t|dkrD|d\} } n ||} } |s| dkr|| kr|d=|r|t|dd | f|d <n*|| ffV|t|dd |ff|d <t|ddD]6\\} } \}}| tt| dd |d ffVq|r dnddfVdS)zGenerator that takes a list of pen's (operator, operands) tuples, and yields them with the winding direction reversed. Nzinvalid contourr)endPath closePathr)moveToqCurveToz invalid initial segment type: %rrz)off-curve only paths must end with 'None'z,only one qCurveTo allowed per off-curve pathrrFTZlineTo)reverserr )lenAssertionErrorpoptuplereversedr)rr Z contourTypeclosedZ firstTypeZfirstPtsZ firstOnCurveZlastTypeZlastPtsZ lastOnCurveZ secondTypeZ secondPtsZcurTypeZcurPts_ZnextPtsr r rrsP    "      (N)F)ZfontTools.misc.arrayToolsrZfontTools.pens.filterPenr__all__rrr r r rs