³ò @wOGc@sdZddkZddkZddklZeZeZe Z d„Z d„Z d„Z d„Zd„Zd „Zd „Zd „Zd „Zd „Zddd„ƒYZedjo`dZxWeieƒD]BZeeiieeƒƒZeeƒZeidƒ\Z Z!qÐWndS(sÒ This is a python interface to Adobe Font Metrics Files. Although a number of other python implementations exist (and may be more complete than mine) I decided not to go with them because either they were either 1) copyighted or used a non-BSD compatible license 2) had too many dependencies and I wanted a free standing lib 3) Did more than I needed and it was easier to write my own than figure out how to just get what I needed from theirs It is pretty easy to use, and requires only built-in python libs >>> from afm import AFM >>> fh = file('ptmr8a.afm') >>> afm = AFM(fh) >>> afm.string_width_height('What the heck?') (6220.0, 683) >>> afm.get_fontname() 'Times-Roman' >>> afm.get_kern_dist('A', 'f') 0 >>> afm.get_kern_dist('A', 'y') -92.0 >>> afm.get_bbox_char('!') [130, -9, 238, 676] >>> afm.get_bbox_font() [-168, -218, 1000, 898] AUTHOR: John D. Hunter iÿÿÿÿN(t uni2type1cCs=|iddƒ}g}|iƒD]}|t|ƒq#~S(Nt,t (treplacetsplitt_to_int(tst_[1]tval((s7/Users/cmoad/workspace/matplotlib/lib/matplotlib/afm.pyt_to_list_of_ints-scCs+g}|iƒD]}|t|ƒq~S(N(Rt _to_float(RRR((s7/Users/cmoad/workspace/matplotlib/lib/matplotlib/afm.pyt_to_list_of_floats1scCs)|iƒiƒdjotSntSdS(Ntfalset0tno(sfalseR sno(tlowertstriptFalsetTrue(R((s7/Users/cmoad/workspace/matplotlib/lib/matplotlib/afm.pyt_to_bool3s!cCsT|iƒ}z|iƒ}Wd|i|dƒX|idƒptdƒ‚ndS(sU Check if the file at least looks like AFM. If not, raise RuntimeError. NitStartFontMetricssNot an AFM file(ttelltreadlinetseekt startswitht RuntimeError(tfhtpostline((s7/Users/cmoad/workspace/matplotlib/lib/matplotlib/afm.pyt _sanity_check8s  cCsôhtd<td<td<td<td<td<td<td<td <td <td <td <td <td<td<td<td<td<td<td<td<td<td<}h}x|iƒ}|pPn|iƒ}|idƒoqÞn|iddƒ}|d}t |ƒdjo|d}nd}y|||ƒ||False, '0'->0, '-168 -218 1000 898'-> [-168, -218, 1000, 898] Dictionary keys are StartFontMetrics, FontName, FullName, FamilyName, Weight, ItalicAngle, IsFixedPitch, FontBBox, UnderlinePosition, UnderlineThickness, Version, Notice, EncodingScheme, CapHeight, XHeight, Ascender, Descender, StartCharMetrics RtFontNametFullNamet FamilyNametWeightt ItalicAnglet IsFixedPitchtFontBBoxtUnderlinePositiontUnderlineThicknesstVersiontNoticetEncodingSchemet CapHeightt CapheighttXHeighttAscendert DescendertStdHWtStdVWtStartCharMetricst CharacterSett CharacterstCommentRiiits"Value error parsing header in AFM:s/Found an unknown keyword in AFM header (was %s)s Bad parseN(R t_to_strRR RRtrstripRRtlent ValueErrortsyststderrtKeyErrorR(RtheaderConverterstdRtlsttkeyR((s7/Users/cmoad/workspace/matplotlib/lib/matplotlib/afm.pyt _parse_headerMsX                           c CsEh}h}x&|iƒ}|pPn|iƒ}|idƒo||fSn|idƒd }t|ƒdjotd|ƒ‚nt|diƒdƒ}t|diƒdƒ}|diƒd}t|ddƒ}|d jo d }n|d jo|||f||RGtc1tc2R((s7/Users/cmoad/workspace/matplotlib/lib/matplotlib/afm.pyt_parse_kern_pairs±s$      $&c Cs"h}x |iƒ}|pPn|iƒ}t|ƒdjoq n|idƒo|Sn|idƒ}|diƒ}|dt|dƒ}}g}xc|dd!D]T}|iƒ} | dt| dƒt| dƒ}} } |i|| | fƒq­W|||RRGtccRJtnumPartstpccPartsRtpcctdxtdy((s7/Users/cmoad/workspace/matplotlib/lib/matplotlib/afm.pyt_parse_compositesÒs&    , cCsÄhtd<td<}hhd<hd<}xy|iƒ}|pPn|iƒ}t|ƒdjoq3n|iƒd}|i|ƒo|||ƒ||RR@tl((s7/Users/cmoad/workspace/matplotlib/lib/matplotlib/afm.pyt_parse_optionalôs     +cCsOt|ƒt|ƒ}t|ƒ\}}t|ƒ}||||d|dfS(s@ Parse the Adobe Font Metics file in file handle fh Return value is a (dhead, dcmetrics, dkernpairs, dcomposite) tuple where dhead : a parse_header dict dcmetrics : a parse_composites dict dkernpairs : a parse_kern_pairs dict, possibly {} dcomposite : a parse_composites dict , possibly {} ii(RRARLRa(Rtdheadtdcmetrics_asciitdcmetrics_namet doptional((s7/Users/cmoad/workspace/matplotlib/lib/matplotlib/afm.pyt parse_afms   tAFMcBsÑeZd„Zed„Zd„Zd„Zd„Zed„Zed„Z d„Z ed„Z d „Z d „Z d „Zd „Zd „Zd„Zd„Zd„Zd„Zd„Zd„Zd„ZRS(cCsLt|ƒ\}}}}}||_||_||_||_||_dS(s6 Parse the AFM file in file object fh N(Rft_headert_kernt_metricst_metrics_by_namet _composite(tselfRRbRcRdt dkernpairst dcomposite((s7/Users/cmoad/workspace/matplotlib/lib/matplotlib/afm.pyt__init__!s     cCs1|pt|ƒ}n|i|\}}}|S(N(tordRj(RmtctisordRIRJRK((s7/Users/cmoad/workspace/matplotlib/lib/matplotlib/afm.pyt get_bbox_char.scCs t|ƒpdSnd}d}d}d}xÏ|D]Ç}|djoq4n|it|ƒ\}}} | \} } } } y|i||f}Wntj o d}nX|||7}| | }||jo |}n| }||jo |}q4q4W|||fS(sf Return the string width (including kerning) and string height as a w,h tuple igeÍÍAs (iiN(R8tNoneRjRqRiR<(RmRttotalwtnamelasttminytmaxyRrRIRJRKR`tbtwthtkptthismaxtthismin((s7/Users/cmoad/workspace/matplotlib/lib/matplotlib/afm.pytstring_width_height3s$ c Cs–t|ƒpdSnd}d}d}d}d}t|tƒp|iƒ}nx(|D] }|djoqZntit|ƒdƒ}y|i|\} } Wn,t j o d}|i|\} } nX| \} } } }| |jo | }ny|i ||f}Wnt j o d}nX|| |7}| |}||jo |}n| }||jo |}qZqZW|||||| fS(s0 Return the string bounding box igeÍÍAs tquestion(iiiiN( R8Rut isinstancetunicodetdecodeRtgetRqRkR<Ri(RmRRvRwRxRytleftRrRJRIRKR`RzR{R|R}R~R((s7/Users/cmoad/workspace/matplotlib/lib/matplotlib/afm.pytget_str_bbox_and_descentQs6 cCs|i|ƒd S(s0 Return the string bounding box i(R‡(RmR((s7/Users/cmoad/workspace/matplotlib/lib/matplotlib/afm.pyt get_str_bboxwscCs1|pt|ƒ}n|i|\}}}|S(sG Get the name of the character, ie, ';' is 'semicolon' (RqRj(RmRrRsRIRJRK((s7/Users/cmoad/workspace/matplotlib/lib/matplotlib/afm.pyt get_name_char}scCs1|pt|ƒ}n|i|\}}}|S(s[ Get the width of the character from the character metric WX field (RqRj(RmRrRsRIRJRK((s7/Users/cmoad/workspace/matplotlib/lib/matplotlib/afm.pytget_width_char…scCs|i|\}}|S(sL Get the width of the character from a type1 character name (Rk(RmRJRIRK((s7/Users/cmoad/workspace/matplotlib/lib/matplotlib/afm.pytget_width_from_char_nameŽscCs5|pt|ƒ}n|i|\}}}|dS(ss Get the height of character c from the bounding box. This is the ink height (space is 0) iÿÿÿÿ(RqRj(RmRrRsRIRJRK((s7/Users/cmoad/workspace/matplotlib/lib/matplotlib/afm.pytget_height_char•scCs/|i|ƒ|i|ƒ}}|i||ƒS(s[ Return the kerning pair distance (possibly 0) for chars c1 and c2 (R‰tget_kern_dist_from_name(RmRPRQtname1tname2((s7/Users/cmoad/workspace/matplotlib/lib/matplotlib/afm.pyt get_kern_distžscCs'y|i||fSWn dSnXdS(s[ Return the kerning pair distance (possibly 0) for chars c1 and c2 iN(Ri(RmRŽR((s7/Users/cmoad/workspace/matplotlib/lib/matplotlib/afm.pyR¦scCs |idS(s%Return the font name, eg, Times-RomanR(Rh(Rm((s7/Users/cmoad/workspace/matplotlib/lib/matplotlib/afm.pyt get_fontname®scCs |idS(s*Return the font full name, eg, Times-RomanR(Rh(Rm((s7/Users/cmoad/workspace/matplotlib/lib/matplotlib/afm.pyt get_fullname²scCs |idS(s&Return the font family name, eg, TimesR (Rh(Rm((s7/Users/cmoad/workspace/matplotlib/lib/matplotlib/afm.pytget_familyname¶scCs |idS(s-Return the font weight, eg, 'Bold' or 'Roman'R!(Rh(Rm((s7/Users/cmoad/workspace/matplotlib/lib/matplotlib/afm.pyt get_weightºscCs |idS(sReturn the fontangle as floatR"(Rh(Rm((s7/Users/cmoad/workspace/matplotlib/lib/matplotlib/afm.pyt get_angle¾scCs |idS(sReturn the cap height as floatR*(Rh(Rm((s7/Users/cmoad/workspace/matplotlib/lib/matplotlib/afm.pyt get_capheightÂscCs |idS(sReturn the xheight as floatR,(Rh(Rm((s7/Users/cmoad/workspace/matplotlib/lib/matplotlib/afm.pyt get_xheightÆscCs |idS(s'Return the underline thickness as floatR&(Rh(Rm((s7/Users/cmoad/workspace/matplotlib/lib/matplotlib/afm.pytget_underline_thicknessÊscCs|iiddƒS(ss Return the standard horizontal stem width as float, or None if not specified in AFM file. R/N(RhR…Ru(Rm((s7/Users/cmoad/workspace/matplotlib/lib/matplotlib/afm.pytget_horizontal_stem_widthÎscCs|iiddƒS(sq Return the standard vertical stem width as float, or None if not specified in AFM file. R0N(RhR…Ru(Rm((s7/Users/cmoad/workspace/matplotlib/lib/matplotlib/afm.pytget_vertical_stem_widthÕs(t__name__t __module__RpRRtR€R‡RˆR‰RŠR‹RŒRRR‘R’R“R”R•R–R—R˜R™Rš(((s7/Users/cmoad/workspace/matplotlib/lib/matplotlib/afm.pyRgs*   &              t__main__s!/usr/local/share/fonts/afms/adobesJohn Hunter is the Man!(("t__doc__R:tost_mathtext_dataRtintRtfloatR tstrR6R R RRRARLRRR[RaRfRgR›tpathnametlistdirtfnametfiletpathtjoinRtafmR€R{R|(((s7/Users/cmoad/workspace/matplotlib/lib/matplotlib/afm.pys#s.     A # ! "  ¾