o h2@sddlZddlmZmZddlmZddlmZddlm Z ddl m Z ddl m Z Gdd d eZ Gd d d e ZGd d d ZdS)N)curve_to_quadraticcurves_to_quadratic)decomposeSuperBezierSegment) FilterPenReverseContourPen)BasePointToSegmentPen)ReverseContourPointPencs<eZdZdZ   d fdd ZfddZd d ZZS) Cu2QuPena A filter pen to convert cubic bezier curves to quadratic b-splines using the FontTools SegmentPen protocol. Args: other_pen: another SegmentPen used to draw the transformed outline. max_err: maximum approximation error in font units. For optimal results, if you know the UPEM of the font, we recommend setting this to a value equal, or close to UPEM / 1000. reverse_direction: flip the contours' direction but keep starting point. stats: a dictionary counting the point numbers of quadratic segments. all_quadratic: if True (default), only quadratic b-splines are generated. if False, quadratic curves or cubic curves are generated depending on which one is more economical. FNTcs.|rt|}t|||_||_||_dSN)rsuper__init__max_errstats all_quadratic)self other_penrreverse_directionrr __class__k/var/www/html/construction_image-detection-poc/venv/lib/python3.10/site-packages/fontTools/pens/cu2quPen.pyr )s   zCu2QuPen.__init__cs|j|||f}t||j|j}|jdur(tt|d}|j|dd|j|<|jr6|j|dddSt|dkrG|j|dddSt|dksOJt j |dddS)Nr) current_ptrrrrstrlengetqCurveTor curveTo)rpt1pt2pt3curveresultnrrr_convert_curve8s  zCu2QuPen._convert_curvecGsPt|}|dkr|j|dS|dkr!t|D]}|j|qdS|j|dS)Nr)rr(rr )rpointsr'segmentrrrr!Gs  zCu2QuPen.curveToFNT)__name__ __module__ __qualname____doc__r r(r! __classcell__rrrrr s r c@sfeZdZdZdejfdejfdejfdejfdZ   dd d Zd d Z d dZ ddZ ddZ dS) Cu2QuPointPenaA filter pen to convert cubic bezier curves to quadratic b-splines using the FontTools PointPen protocol. Args: other_point_pen: another PointPen used to draw the transformed outline. max_err: maximum approximation error in font units. For optimal results, if you know the UPEM of the font, we recommend setting this to a value equal, or close to UPEM / 1000. reverse_direction: reverse the winding direction of all contours. stats: a dictionary counting the point numbers of quadratic segments. all_quadratic: if True (default), only quadratic b-splines are generated. if False, quadratic curves or cubic curves are generated depending on which one is more economical. rrr)movelineqcurver%FNTcCs6t||r t||_n||_||_||_||_dSr )rr r penrrr)rother_point_penrrrrrrrr js   zCu2QuPointPen.__init__cCst|dksJ|dddk}g}|dd}|dd}|D]\}}|dkr||D]p}|d\} } } } |dd|dd} }|| || g}t||j|j}|jdurktt|d}|j|dd|j|<dd|ddD}|| | | | f|jst|dkr|d |gn|d|g|dd}q-q |||g|dd}q |r|dd|dd}| |dS) Nrrr2r%rcSsg|]}|ddifqS)FNr).0ptrrr z/Cu2QuPointPen._flushContour..r4) r_split_super_bezier_segmentsrrrrrrappend _drawPoints)rsegmentsclosed new_segments prev_points prev_on_curve segment_typer) sub_pointson_curvesmoothnamekwargsbcp1bcp2cubicquadr' new_pointsrrr _flushContour{s6     zCu2QuPointPen._flushContourc Csg}t|d}|dkr|||S|dkri|d\}}}}|d}ttdd|DD]8\} } g} | ddD] } | | ddifq:| |dkrV| ||||fn | | dddif|| q.|Std|) Nrrr7cSsg|]\}}}}|qSrr)r8r9_rrrr:r;z>Cu2QuPointPen._split_super_bezier_segments..FTz$expected 2 control points, found: %d)rr= enumeraterAssertionError) rr) sub_segmentsr'rFrGrHrInum_sub_segmentsirE new_segmentpointrrrr<s(      z*Cu2QuPointPen._split_super_bezier_segmentsc Cs2|j}|g}|j}t|D]m\}\}}||vrx||\}} | t||s6Jd|d|dt||dd} |dkrC| }n| D]\} } } }|j| d| | fi|qE|d\} } } }| durk|dksjJq|j| || | fi|qtd||D]\} } } }|j| d| | fi|q|dS)Nzillegal z segment point count: expected z, got r7rr4zunexpected segment type: %r)r5 beginPath_Cu2QuPointPen__points_requiredrQraddPointrRendPath)rr?r5last_offcurvespoints_requiredrUrDr)r'op offcurvesr9rGrHrIrrrr>s8     zCu2QuPointPen._drawPointscCs |jdusJ|j||dSr ) currentPathr5 addComponent)r baseGlyphNametransformationrrrraszCu2QuPointPen.addComponentr+) r,r-r.r/operatoreqgerYr rOr<r>rarrrrr1Ss  ! #r1c@sreZdZdZdddZddZddZd d Zd d Zd dZ ddZ ddZ ddZ ddZ ddZddZdS) Cu2QuMultiPenaA filter multi-pen to convert cubic bezier curves to quadratic b-splines in a interpolation-compatible manner, using the FontTools SegmentPen protocol. Args: other_pens: list of SegmentPens used to draw the transformed outlines. max_err: maximum approximation error in font units. For optimal results, if you know the UPEM of the font, we recommend setting this to a value equal, or close to UPEM / 1000. reverse_direction: flip the contours' direction but keep starting point. This pen does not follow the normal SegmentPen protocol. Instead, its moveTo/lineTo/qCurveTo/curveTo methods take a list of tuples that are arguments that would normally be passed to a SegmentPen, one item for each of the pens in other_pens. FcCs.|r dd|D}||_||_d|_d|_dS)NcSsg|]}t|ddqS)T)outputImpliedClosingLiner)r8r5rrrr:s z*Cu2QuMultiPen.__init__..)pensr start_pts current_pts)r other_pensrrrrrr s zCu2QuMultiPen.__init__cCs|jdur tddS)NzmoveTo is requiredrkrRrrrr_check_contour_is_open z$Cu2QuMultiPen._check_contour_is_opencCs|jdur tddS)Nz closePath or endPath is requiredrmrnrrr_check_contour_is_closedrpz&Cu2QuMultiPen._check_contour_is_closedcCs:|jdurt|j|jD] \}}|j|q d|_dSdSr )rjziprimoveTo)rr9r5rrr _add_moveTos   zCu2QuMultiPen._add_moveTocCs |||_|_|dSr )rqrjrkrt)rptsrrrrss  zCu2QuMultiPen.moveTocCs:||t||jD] \}}|j|q||_dSr )rortrrrilineTork)rrur9r5rrrrvs   zCu2QuMultiPen.lineTocCsv|t|ddkr|dd|DdS|g}t||jD]\}}|j|||dfq$||_dS)NrrcSsg|]}|dfqS)rr)r8r)rrrr:sz*Cu2QuMultiPen.qCurveTo..r7) rorrvrtrrrir r=rk)r pointsListrkr)r5rrrr s  zCu2QuMultiPen.qCurveTocCslg}t|j|D] \}}|||qt||jgt|}g}|D] }||ddq#||dS)Nr)rrrkr=rrrr )rrwcurvesrr) quadratics quadraticrrr_curves_to_quadratic&sz"Cu2QuMultiPen._curves_to_quadraticcCs|||dSr )ror{)rrwrrrr!0szCu2QuMultiPen.curveTocC6||jdur|jD]}|q d|_|_dSr )rorjri closePathrkrr5rrrr}4    zCu2QuMultiPen.closePathcCr|r )rorjrir[rkr~rrrr[;rzCu2QuMultiPen.endPathcCs.|t||jD] \}}|||q dSr )rqrrrira)r glyphNametransformationstransr5rrrraBszCu2QuMultiPen.addComponentN)F)r,r-r.r/r rorqrtrsrvr r{r!r}r[rarrrrrgs     rg)rdfontTools.cu2qurrfontTools.pens.basePenrfontTools.pens.filterPenr fontTools.pens.reverseContourPenrfontTools.pens.pointPenrr r r1rgrrrrs     ;