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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
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<h1>Source code for matplotlib.afm</h1><div class="highlight"><pre>
<span></span><span class="sd">"""</span>
<span class="sd">This is a python interface to Adobe Font Metrics Files. Although a</span>
<span class="sd">number of other python implementations exist, and may be more complete</span>
<span class="sd">than this, it was decided not to go with them because they were</span>
<span class="sd">either:</span>
<span class="sd"> 1) copyrighted or used a non-BSD compatible license</span>
<span class="sd"> 2) had too many dependencies and a free standing lib was needed</span>
<span class="sd"> 3) Did more than needed and it was easier to write afresh rather than</span>
<span class="sd"> figure out how to get just what was needed.</span>
<span class="sd">It is pretty easy to use, and requires only built-in python libs:</span>
<span class="sd"> >>> from matplotlib import rcParams</span>
<span class="sd"> >>> import os.path</span>
<span class="sd"> >>> afm_fname = os.path.join(rcParams['datapath'],</span>
<span class="sd"> ... 'fonts', 'afm', 'ptmr8a.afm')</span>
<span class="sd"> >>></span>
<span class="sd"> >>> from matplotlib.afm import AFM</span>
<span class="sd"> >>> with open(afm_fname, 'rb') as fh:</span>
<span class="sd"> ... afm = AFM(fh)</span>
<span class="sd"> >>> afm.string_width_height('What the heck?')</span>
<span class="sd"> (6220.0, 694)</span>
<span class="sd"> >>> afm.get_fontname()</span>
<span class="sd"> 'Times-Roman'</span>
<span class="sd"> >>> afm.get_kern_dist('A', 'f')</span>
<span class="sd"> 0</span>
<span class="sd"> >>> afm.get_kern_dist('A', 'y')</span>
<span class="sd"> -92.0</span>
<span class="sd"> >>> afm.get_bbox_char('!')</span>
<span class="sd"> [130, -9, 238, 676]</span>
<span class="sd">As in the Adobe Font Metrics File Format Specification, all dimensions</span>
<span class="sd">are given in units of 1/1000 of the scale factor (point size) of the font</span>
<span class="sd">being used.</span>
<span class="sd">"""</span>
<span class="kn">from</span> <span class="nn">collections</span> <span class="k">import</span> <span class="n">namedtuple</span>
<span class="kn">import</span> <span class="nn">logging</span>
<span class="kn">import</span> <span class="nn">re</span>
<span class="kn">from</span> <span class="nn">._mathtext_data</span> <span class="k">import</span> <span class="n">uni2type1</span>
<span class="kn">from</span> <span class="nn">matplotlib.cbook</span> <span class="k">import</span> <span class="n">deprecated</span>
<span class="n">_log</span> <span class="o">=</span> <span class="n">logging</span><span class="o">.</span><span class="n">getLogger</span><span class="p">(</span><span class="vm">__name__</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">_to_int</span><span class="p">(</span><span class="n">x</span><span class="p">):</span>
<span class="c1"># Some AFM files have floats where we are expecting ints -- there is</span>
<span class="c1"># probably a better way to handle this (support floats, round rather</span>
<span class="c1"># than truncate). But I don't know what the best approach is now and</span>
<span class="c1"># this change to _to_int should at least prevent mpl from crashing on</span>
<span class="c1"># these JDH (2009-11-06)</span>
<span class="k">return</span> <span class="nb">int</span><span class="p">(</span><span class="nb">float</span><span class="p">(</span><span class="n">x</span><span class="p">))</span>
<span class="k">def</span> <span class="nf">_to_float</span><span class="p">(</span><span class="n">x</span><span class="p">):</span>
<span class="c1"># Some AFM files use "," instead of "." as decimal separator -- this</span>
<span class="c1"># shouldn't be ambiguous (unless someone is wicked enough to use "," as</span>
<span class="c1"># thousands separator...).</span>
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">x</span><span class="p">,</span> <span class="nb">bytes</span><span class="p">):</span>
<span class="c1"># Encoding doesn't really matter -- if we have codepoints >127 the call</span>
<span class="c1"># to float() will error anyways.</span>
<span class="n">x</span> <span class="o">=</span> <span class="n">x</span><span class="o">.</span><span class="n">decode</span><span class="p">(</span><span class="s1">'latin-1'</span><span class="p">)</span>
<span class="k">return</span> <span class="nb">float</span><span class="p">(</span><span class="n">x</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="s1">','</span><span class="p">,</span> <span class="s1">'.'</span><span class="p">))</span>
<span class="k">def</span> <span class="nf">_to_str</span><span class="p">(</span><span class="n">x</span><span class="p">):</span>
<span class="k">return</span> <span class="n">x</span><span class="o">.</span><span class="n">decode</span><span class="p">(</span><span class="s1">'utf8'</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">_to_list_of_ints</span><span class="p">(</span><span class="n">s</span><span class="p">):</span>
<span class="n">s</span> <span class="o">=</span> <span class="n">s</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="sa">b</span><span class="s1">','</span><span class="p">,</span> <span class="sa">b</span><span class="s1">' '</span><span class="p">)</span>
<span class="k">return</span> <span class="p">[</span><span class="n">_to_int</span><span class="p">(</span><span class="n">val</span><span class="p">)</span> <span class="k">for</span> <span class="n">val</span> <span class="ow">in</span> <span class="n">s</span><span class="o">.</span><span class="n">split</span><span class="p">()]</span>
<span class="k">def</span> <span class="nf">_to_list_of_floats</span><span class="p">(</span><span class="n">s</span><span class="p">):</span>
<span class="k">return</span> <span class="p">[</span><span class="n">_to_float</span><span class="p">(</span><span class="n">val</span><span class="p">)</span> <span class="k">for</span> <span class="n">val</span> <span class="ow">in</span> <span class="n">s</span><span class="o">.</span><span class="n">split</span><span class="p">()]</span>
<span class="k">def</span> <span class="nf">_to_bool</span><span class="p">(</span><span class="n">s</span><span class="p">):</span>
<span class="k">if</span> <span class="n">s</span><span class="o">.</span><span class="n">lower</span><span class="p">()</span><span class="o">.</span><span class="n">strip</span><span class="p">()</span> <span class="ow">in</span> <span class="p">(</span><span class="sa">b</span><span class="s1">'false'</span><span class="p">,</span> <span class="sa">b</span><span class="s1">'0'</span><span class="p">,</span> <span class="sa">b</span><span class="s1">'no'</span><span class="p">):</span>
<span class="k">return</span> <span class="kc">False</span>
<span class="k">else</span><span class="p">:</span>
<span class="k">return</span> <span class="kc">True</span>
<span class="k">def</span> <span class="nf">_sanity_check</span><span class="p">(</span><span class="n">fh</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Check if the file looks like AFM; if it doesn't, raise `RuntimeError`.</span>
<span class="sd"> """</span>
<span class="c1"># Remember the file position in case the caller wants to</span>
<span class="c1"># do something else with the file.</span>
<span class="n">pos</span> <span class="o">=</span> <span class="n">fh</span><span class="o">.</span><span class="n">tell</span><span class="p">()</span>
<span class="k">try</span><span class="p">:</span>
<span class="n">line</span> <span class="o">=</span> <span class="nb">next</span><span class="p">(</span><span class="n">fh</span><span class="p">)</span>
<span class="k">finally</span><span class="p">:</span>
<span class="n">fh</span><span class="o">.</span><span class="n">seek</span><span class="p">(</span><span class="n">pos</span><span class="p">,</span> <span class="mi">0</span><span class="p">)</span>
<span class="c1"># AFM spec, Section 4: The StartFontMetrics keyword [followed by a</span>
<span class="c1"># version number] must be the first line in the file, and the</span>
<span class="c1"># EndFontMetrics keyword must be the last non-empty line in the</span>
<span class="c1"># file. We just check the first line.</span>
<span class="k">if</span> <span class="ow">not</span> <span class="n">line</span><span class="o">.</span><span class="n">startswith</span><span class="p">(</span><span class="sa">b</span><span class="s1">'StartFontMetrics'</span><span class="p">):</span>
<span class="k">raise</span> <span class="ne">RuntimeError</span><span class="p">(</span><span class="s1">'Not an AFM file'</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">_parse_header</span><span class="p">(</span><span class="n">fh</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Reads the font metrics header (up to the char metrics) and returns</span>
<span class="sd"> a dictionary mapping *key* to *val*. *val* will be converted to the</span>
<span class="sd"> appropriate python type as necessary; e.g.:</span>
<span class="sd"> * 'False'->False</span>
<span class="sd"> * '0'->0</span>
<span class="sd"> * '-168 -218 1000 898'-> [-168, -218, 1000, 898]</span>
<span class="sd"> Dictionary keys are</span>
<span class="sd"> StartFontMetrics, FontName, FullName, FamilyName, Weight,</span>
<span class="sd"> ItalicAngle, IsFixedPitch, FontBBox, UnderlinePosition,</span>
<span class="sd"> UnderlineThickness, Version, Notice, EncodingScheme, CapHeight,</span>
<span class="sd"> XHeight, Ascender, Descender, StartCharMetrics</span>
<span class="sd"> """</span>
<span class="n">header_converters</span> <span class="o">=</span> <span class="p">{</span>
<span class="sa">b</span><span class="s1">'StartFontMetrics'</span><span class="p">:</span> <span class="n">_to_float</span><span class="p">,</span>
<span class="sa">b</span><span class="s1">'FontName'</span><span class="p">:</span> <span class="n">_to_str</span><span class="p">,</span>
<span class="sa">b</span><span class="s1">'FullName'</span><span class="p">:</span> <span class="n">_to_str</span><span class="p">,</span>
<span class="sa">b</span><span class="s1">'FamilyName'</span><span class="p">:</span> <span class="n">_to_str</span><span class="p">,</span>
<span class="sa">b</span><span class="s1">'Weight'</span><span class="p">:</span> <span class="n">_to_str</span><span class="p">,</span>
<span class="sa">b</span><span class="s1">'ItalicAngle'</span><span class="p">:</span> <span class="n">_to_float</span><span class="p">,</span>
<span class="sa">b</span><span class="s1">'IsFixedPitch'</span><span class="p">:</span> <span class="n">_to_bool</span><span class="p">,</span>
<span class="sa">b</span><span class="s1">'FontBBox'</span><span class="p">:</span> <span class="n">_to_list_of_ints</span><span class="p">,</span>
<span class="sa">b</span><span class="s1">'UnderlinePosition'</span><span class="p">:</span> <span class="n">_to_float</span><span class="p">,</span>
<span class="sa">b</span><span class="s1">'UnderlineThickness'</span><span class="p">:</span> <span class="n">_to_float</span><span class="p">,</span>
<span class="sa">b</span><span class="s1">'Version'</span><span class="p">:</span> <span class="n">_to_str</span><span class="p">,</span>
<span class="c1"># Some AFM files have non-ASCII characters (which are not allowed by</span>
<span class="c1"># the spec). Given that there is actually no public API to even access</span>
<span class="c1"># this field, just return it as straight bytes.</span>
<span class="sa">b</span><span class="s1">'Notice'</span><span class="p">:</span> <span class="k">lambda</span> <span class="n">x</span><span class="p">:</span> <span class="n">x</span><span class="p">,</span>
<span class="sa">b</span><span class="s1">'EncodingScheme'</span><span class="p">:</span> <span class="n">_to_str</span><span class="p">,</span>
<span class="sa">b</span><span class="s1">'CapHeight'</span><span class="p">:</span> <span class="n">_to_float</span><span class="p">,</span> <span class="c1"># Is the second version a mistake, or</span>
<span class="sa">b</span><span class="s1">'Capheight'</span><span class="p">:</span> <span class="n">_to_float</span><span class="p">,</span> <span class="c1"># do some AFM files contain 'Capheight'? -JKS</span>
<span class="sa">b</span><span class="s1">'XHeight'</span><span class="p">:</span> <span class="n">_to_float</span><span class="p">,</span>
<span class="sa">b</span><span class="s1">'Ascender'</span><span class="p">:</span> <span class="n">_to_float</span><span class="p">,</span>
<span class="sa">b</span><span class="s1">'Descender'</span><span class="p">:</span> <span class="n">_to_float</span><span class="p">,</span>
<span class="sa">b</span><span class="s1">'StdHW'</span><span class="p">:</span> <span class="n">_to_float</span><span class="p">,</span>
<span class="sa">b</span><span class="s1">'StdVW'</span><span class="p">:</span> <span class="n">_to_float</span><span class="p">,</span>
<span class="sa">b</span><span class="s1">'StartCharMetrics'</span><span class="p">:</span> <span class="n">_to_int</span><span class="p">,</span>
<span class="sa">b</span><span class="s1">'CharacterSet'</span><span class="p">:</span> <span class="n">_to_str</span><span class="p">,</span>
<span class="sa">b</span><span class="s1">'Characters'</span><span class="p">:</span> <span class="n">_to_int</span><span class="p">,</span>
<span class="p">}</span>
<span class="n">d</span> <span class="o">=</span> <span class="p">{}</span>
<span class="k">for</span> <span class="n">line</span> <span class="ow">in</span> <span class="n">fh</span><span class="p">:</span>
<span class="n">line</span> <span class="o">=</span> <span class="n">line</span><span class="o">.</span><span class="n">rstrip</span><span class="p">()</span>
<span class="k">if</span> <span class="n">line</span><span class="o">.</span><span class="n">startswith</span><span class="p">(</span><span class="sa">b</span><span class="s1">'Comment'</span><span class="p">):</span>
<span class="k">continue</span>
<span class="n">lst</span> <span class="o">=</span> <span class="n">line</span><span class="o">.</span><span class="n">split</span><span class="p">(</span><span class="sa">b</span><span class="s1">' '</span><span class="p">,</span> <span class="mi">1</span><span class="p">)</span>
<span class="n">key</span> <span class="o">=</span> <span class="n">lst</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
<span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">lst</span><span class="p">)</span> <span class="o">==</span> <span class="mi">2</span><span class="p">:</span>
<span class="n">val</span> <span class="o">=</span> <span class="n">lst</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">val</span> <span class="o">=</span> <span class="sa">b</span><span class="s1">''</span>
<span class="k">try</span><span class="p">:</span>
<span class="n">converter</span> <span class="o">=</span> <span class="n">header_converters</span><span class="p">[</span><span class="n">key</span><span class="p">]</span>
<span class="k">except</span> <span class="ne">KeyError</span><span class="p">:</span>
<span class="n">_log</span><span class="o">.</span><span class="n">error</span><span class="p">(</span><span class="s1">'Found an unknown keyword in AFM header (was </span><span class="si">%r</span><span class="s1">)'</span> <span class="o">%</span> <span class="n">key</span><span class="p">)</span>
<span class="k">continue</span>
<span class="k">try</span><span class="p">:</span>
<span class="n">d</span><span class="p">[</span><span class="n">key</span><span class="p">]</span> <span class="o">=</span> <span class="n">converter</span><span class="p">(</span><span class="n">val</span><span class="p">)</span>
<span class="k">except</span> <span class="ne">ValueError</span><span class="p">:</span>
<span class="n">_log</span><span class="o">.</span><span class="n">error</span><span class="p">(</span><span class="s1">'Value error parsing header in AFM: </span><span class="si">%s</span><span class="s1">, </span><span class="si">%s</span><span class="s1">'</span><span class="p">,</span> <span class="n">key</span><span class="p">,</span> <span class="n">val</span><span class="p">)</span>
<span class="k">continue</span>
<span class="k">if</span> <span class="n">key</span> <span class="o">==</span> <span class="sa">b</span><span class="s1">'StartCharMetrics'</span><span class="p">:</span>
<span class="k">return</span> <span class="n">d</span>
<span class="k">raise</span> <span class="ne">RuntimeError</span><span class="p">(</span><span class="s1">'Bad parse'</span><span class="p">)</span>
<span class="n">CharMetrics</span> <span class="o">=</span> <span class="n">namedtuple</span><span class="p">(</span><span class="s1">'CharMetrics'</span><span class="p">,</span> <span class="s1">'width, name, bbox'</span><span class="p">)</span>
<span class="n">CharMetrics</span><span class="o">.</span><span class="vm">__doc__</span> <span class="o">=</span> <span class="s2">"""</span>
<span class="s2"> Represents the character metrics of a single character.</span>
<span class="s2"> Notes</span>
<span class="s2"> -----</span>
<span class="s2"> The fields do currently only describe a subset of character metrics</span>
<span class="s2"> information defined in the AFM standard.</span>
<span class="s2"> """</span>
<span class="n">CharMetrics</span><span class="o">.</span><span class="n">width</span><span class="o">.</span><span class="vm">__doc__</span> <span class="o">=</span> <span class="s2">"""The character width (WX)."""</span>
<span class="n">CharMetrics</span><span class="o">.</span><span class="n">name</span><span class="o">.</span><span class="vm">__doc__</span> <span class="o">=</span> <span class="s2">"""The character name (N)."""</span>
<span class="n">CharMetrics</span><span class="o">.</span><span class="n">bbox</span><span class="o">.</span><span class="vm">__doc__</span> <span class="o">=</span> <span class="s2">"""</span>
<span class="s2"> The bbox of the character (B) as a tuple (*llx*, *lly*, *urx*, *ury*)."""</span>
<span class="k">def</span> <span class="nf">_parse_char_metrics</span><span class="p">(</span><span class="n">fh</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Parse the given filehandle for character metrics information and return</span>
<span class="sd"> the information as dicts.</span>
<span class="sd"> It is assumed that the file cursor is on the line behind</span>
<span class="sd"> 'StartCharMetrics'.</span>
<span class="sd"> Returns</span>
<span class="sd"> -------</span>
<span class="sd"> ascii_d : dict</span>
<span class="sd"> A mapping "ASCII num of the character" to `.CharMetrics`.</span>
<span class="sd"> name_d : dict</span>
<span class="sd"> A mapping "character name" to `.CharMetrics`.</span>
<span class="sd"> Notes</span>
<span class="sd"> -----</span>
<span class="sd"> This function is incomplete per the standard, but thus far parses</span>
<span class="sd"> all the sample afm files tried.</span>
<span class="sd"> """</span>
<span class="n">required_keys</span> <span class="o">=</span> <span class="p">{</span><span class="s1">'C'</span><span class="p">,</span> <span class="s1">'WX'</span><span class="p">,</span> <span class="s1">'N'</span><span class="p">,</span> <span class="s1">'B'</span><span class="p">}</span>
<span class="n">ascii_d</span> <span class="o">=</span> <span class="p">{}</span>
<span class="n">name_d</span> <span class="o">=</span> <span class="p">{}</span>
<span class="k">for</span> <span class="n">line</span> <span class="ow">in</span> <span class="n">fh</span><span class="p">:</span>
<span class="c1"># We are defensively letting values be utf8. The spec requires</span>
<span class="c1"># ascii, but there are non-compliant fonts in circulation</span>
<span class="n">line</span> <span class="o">=</span> <span class="n">_to_str</span><span class="p">(</span><span class="n">line</span><span class="o">.</span><span class="n">rstrip</span><span class="p">())</span> <span class="c1"># Convert from byte-literal</span>
<span class="k">if</span> <span class="n">line</span><span class="o">.</span><span class="n">startswith</span><span class="p">(</span><span class="s1">'EndCharMetrics'</span><span class="p">):</span>
<span class="k">return</span> <span class="n">ascii_d</span><span class="p">,</span> <span class="n">name_d</span>
<span class="c1"># Split the metric line into a dictionary, keyed by metric identifiers</span>
<span class="n">vals</span> <span class="o">=</span> <span class="nb">dict</span><span class="p">(</span><span class="n">s</span><span class="o">.</span><span class="n">strip</span><span class="p">()</span><span class="o">.</span><span class="n">split</span><span class="p">(</span><span class="s1">' '</span><span class="p">,</span> <span class="mi">1</span><span class="p">)</span> <span class="k">for</span> <span class="n">s</span> <span class="ow">in</span> <span class="n">line</span><span class="o">.</span><span class="n">split</span><span class="p">(</span><span class="s1">';'</span><span class="p">)</span> <span class="k">if</span> <span class="n">s</span><span class="p">)</span>
<span class="c1"># There may be other metrics present, but only these are needed</span>
<span class="k">if</span> <span class="ow">not</span> <span class="n">required_keys</span><span class="o">.</span><span class="n">issubset</span><span class="p">(</span><span class="n">vals</span><span class="p">):</span>
<span class="k">raise</span> <span class="ne">RuntimeError</span><span class="p">(</span><span class="s1">'Bad char metrics line: </span><span class="si">%s</span><span class="s1">'</span> <span class="o">%</span> <span class="n">line</span><span class="p">)</span>
<span class="n">num</span> <span class="o">=</span> <span class="n">_to_int</span><span class="p">(</span><span class="n">vals</span><span class="p">[</span><span class="s1">'C'</span><span class="p">])</span>
<span class="n">wx</span> <span class="o">=</span> <span class="n">_to_float</span><span class="p">(</span><span class="n">vals</span><span class="p">[</span><span class="s1">'WX'</span><span class="p">])</span>
<span class="n">name</span> <span class="o">=</span> <span class="n">vals</span><span class="p">[</span><span class="s1">'N'</span><span class="p">]</span>
<span class="n">bbox</span> <span class="o">=</span> <span class="n">_to_list_of_floats</span><span class="p">(</span><span class="n">vals</span><span class="p">[</span><span class="s1">'B'</span><span class="p">])</span>
<span class="n">bbox</span> <span class="o">=</span> <span class="nb">list</span><span class="p">(</span><span class="nb">map</span><span class="p">(</span><span class="nb">int</span><span class="p">,</span> <span class="n">bbox</span><span class="p">))</span>
<span class="n">metrics</span> <span class="o">=</span> <span class="n">CharMetrics</span><span class="p">(</span><span class="n">wx</span><span class="p">,</span> <span class="n">name</span><span class="p">,</span> <span class="n">bbox</span><span class="p">)</span>
<span class="c1"># Workaround: If the character name is 'Euro', give it the</span>
<span class="c1"># corresponding character code, according to WinAnsiEncoding (see PDF</span>
<span class="c1"># Reference).</span>
<span class="k">if</span> <span class="n">name</span> <span class="o">==</span> <span class="s1">'Euro'</span><span class="p">:</span>
<span class="n">num</span> <span class="o">=</span> <span class="mi">128</span>
<span class="k">if</span> <span class="n">num</span> <span class="o">!=</span> <span class="o">-</span><span class="mi">1</span><span class="p">:</span>
<span class="n">ascii_d</span><span class="p">[</span><span class="n">num</span><span class="p">]</span> <span class="o">=</span> <span class="n">metrics</span>
<span class="n">name_d</span><span class="p">[</span><span class="n">name</span><span class="p">]</span> <span class="o">=</span> <span class="n">metrics</span>
<span class="k">raise</span> <span class="ne">RuntimeError</span><span class="p">(</span><span class="s1">'Bad parse'</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">_parse_kern_pairs</span><span class="p">(</span><span class="n">fh</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Return a kern pairs dictionary; keys are (*char1*, *char2*) tuples and</span>
<span class="sd"> values are the kern pair value. For example, a kern pairs line like</span>
<span class="sd"> ``KPX A y -50``</span>
<span class="sd"> will be represented as::</span>
<span class="sd"> d[ ('A', 'y') ] = -50</span>
<span class="sd"> """</span>
<span class="n">line</span> <span class="o">=</span> <span class="nb">next</span><span class="p">(</span><span class="n">fh</span><span class="p">)</span>
<span class="k">if</span> <span class="ow">not</span> <span class="n">line</span><span class="o">.</span><span class="n">startswith</span><span class="p">(</span><span class="sa">b</span><span class="s1">'StartKernPairs'</span><span class="p">):</span>
<span class="k">raise</span> <span class="ne">RuntimeError</span><span class="p">(</span><span class="s1">'Bad start of kern pairs data: </span><span class="si">%s</span><span class="s1">'</span> <span class="o">%</span> <span class="n">line</span><span class="p">)</span>
<span class="n">d</span> <span class="o">=</span> <span class="p">{}</span>
<span class="k">for</span> <span class="n">line</span> <span class="ow">in</span> <span class="n">fh</span><span class="p">:</span>
<span class="n">line</span> <span class="o">=</span> <span class="n">line</span><span class="o">.</span><span class="n">rstrip</span><span class="p">()</span>
<span class="k">if</span> <span class="ow">not</span> <span class="n">line</span><span class="p">:</span>
<span class="k">continue</span>
<span class="k">if</span> <span class="n">line</span><span class="o">.</span><span class="n">startswith</span><span class="p">(</span><span class="sa">b</span><span class="s1">'EndKernPairs'</span><span class="p">):</span>
<span class="nb">next</span><span class="p">(</span><span class="n">fh</span><span class="p">)</span> <span class="c1"># EndKernData</span>
<span class="k">return</span> <span class="n">d</span>
<span class="n">vals</span> <span class="o">=</span> <span class="n">line</span><span class="o">.</span><span class="n">split</span><span class="p">()</span>
<span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">vals</span><span class="p">)</span> <span class="o">!=</span> <span class="mi">4</span> <span class="ow">or</span> <span class="n">vals</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">!=</span> <span class="sa">b</span><span class="s1">'KPX'</span><span class="p">:</span>
<span class="k">raise</span> <span class="ne">RuntimeError</span><span class="p">(</span><span class="s1">'Bad kern pairs line: </span><span class="si">%s</span><span class="s1">'</span> <span class="o">%</span> <span class="n">line</span><span class="p">)</span>
<span class="n">c1</span><span class="p">,</span> <span class="n">c2</span><span class="p">,</span> <span class="n">val</span> <span class="o">=</span> <span class="n">_to_str</span><span class="p">(</span><span class="n">vals</span><span class="p">[</span><span class="mi">1</span><span class="p">]),</span> <span class="n">_to_str</span><span class="p">(</span><span class="n">vals</span><span class="p">[</span><span class="mi">2</span><span class="p">]),</span> <span class="n">_to_float</span><span class="p">(</span><span class="n">vals</span><span class="p">[</span><span class="mi">3</span><span class="p">])</span>
<span class="n">d</span><span class="p">[(</span><span class="n">c1</span><span class="p">,</span> <span class="n">c2</span><span class="p">)]</span> <span class="o">=</span> <span class="n">val</span>
<span class="k">raise</span> <span class="ne">RuntimeError</span><span class="p">(</span><span class="s1">'Bad kern pairs parse'</span><span class="p">)</span>
<span class="n">CompositePart</span> <span class="o">=</span> <span class="n">namedtuple</span><span class="p">(</span><span class="s1">'CompositePart'</span><span class="p">,</span> <span class="s1">'name, dx, dy'</span><span class="p">)</span>
<span class="n">CompositePart</span><span class="o">.</span><span class="vm">__doc__</span> <span class="o">=</span> <span class="s2">"""</span>
<span class="s2"> Represents the information on a composite element of a composite char."""</span>
<span class="n">CompositePart</span><span class="o">.</span><span class="n">name</span><span class="o">.</span><span class="vm">__doc__</span> <span class="o">=</span> <span class="s2">"""Name of the part, e.g. 'acute'."""</span>
<span class="n">CompositePart</span><span class="o">.</span><span class="n">dx</span><span class="o">.</span><span class="vm">__doc__</span> <span class="o">=</span> <span class="s2">"""x-displacement of the part from the origin."""</span>
<span class="n">CompositePart</span><span class="o">.</span><span class="n">dy</span><span class="o">.</span><span class="vm">__doc__</span> <span class="o">=</span> <span class="s2">"""y-displacement of the part from the origin."""</span>
<span class="k">def</span> <span class="nf">_parse_composites</span><span class="p">(</span><span class="n">fh</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Parse the given filehandle for composites information return them as a</span>
<span class="sd"> dict.</span>
<span class="sd"> It is assumed that the file cursor is on the line behind 'StartComposites'.</span>
<span class="sd"> Returns</span>
<span class="sd"> -------</span>
<span class="sd"> composites : dict</span>
<span class="sd"> A dict mapping composite character names to a parts list. The parts</span>
<span class="sd"> list is a list of `.CompositePart` entries describing the parts of</span>
<span class="sd"> the composite.</span>
<span class="sd"> Example</span>
<span class="sd"> -------</span>
<span class="sd"> A composite definition line::</span>
<span class="sd"> CC Aacute 2 ; PCC A 0 0 ; PCC acute 160 170 ;</span>
<span class="sd"> will be represented as::</span>
<span class="sd"> composites['Aacute'] = [CompositePart(name='A', dx=0, dy=0),</span>
<span class="sd"> CompositePart(name='acute', dx=160, dy=170)]</span>
<span class="sd"> """</span>
<span class="n">composites</span> <span class="o">=</span> <span class="p">{}</span>
<span class="k">for</span> <span class="n">line</span> <span class="ow">in</span> <span class="n">fh</span><span class="p">:</span>
<span class="n">line</span> <span class="o">=</span> <span class="n">line</span><span class="o">.</span><span class="n">rstrip</span><span class="p">()</span>
<span class="k">if</span> <span class="ow">not</span> <span class="n">line</span><span class="p">:</span>
<span class="k">continue</span>
<span class="k">if</span> <span class="n">line</span><span class="o">.</span><span class="n">startswith</span><span class="p">(</span><span class="sa">b</span><span class="s1">'EndComposites'</span><span class="p">):</span>
<span class="k">return</span> <span class="n">composites</span>
<span class="n">vals</span> <span class="o">=</span> <span class="n">line</span><span class="o">.</span><span class="n">split</span><span class="p">(</span><span class="sa">b</span><span class="s1">';'</span><span class="p">)</span>
<span class="n">cc</span> <span class="o">=</span> <span class="n">vals</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="o">.</span><span class="n">split</span><span class="p">()</span>
<span class="n">name</span><span class="p">,</span> <span class="n">numParts</span> <span class="o">=</span> <span class="n">cc</span><span class="p">[</span><span class="mi">1</span><span class="p">],</span> <span class="n">_to_int</span><span class="p">(</span><span class="n">cc</span><span class="p">[</span><span class="mi">2</span><span class="p">])</span>
<span class="n">pccParts</span> <span class="o">=</span> <span class="p">[]</span>
<span class="k">for</span> <span class="n">s</span> <span class="ow">in</span> <span class="n">vals</span><span class="p">[</span><span class="mi">1</span><span class="p">:</span><span class="o">-</span><span class="mi">1</span><span class="p">]:</span>
<span class="n">pcc</span> <span class="o">=</span> <span class="n">s</span><span class="o">.</span><span class="n">split</span><span class="p">()</span>
<span class="n">part</span> <span class="o">=</span> <span class="n">CompositePart</span><span class="p">(</span><span class="n">pcc</span><span class="p">[</span><span class="mi">1</span><span class="p">],</span> <span class="n">_to_float</span><span class="p">(</span><span class="n">pcc</span><span class="p">[</span><span class="mi">2</span><span class="p">]),</span> <span class="n">_to_float</span><span class="p">(</span><span class="n">pcc</span><span class="p">[</span><span class="mi">3</span><span class="p">]))</span>
<span class="n">pccParts</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">part</span><span class="p">)</span>
<span class="n">composites</span><span class="p">[</span><span class="n">name</span><span class="p">]</span> <span class="o">=</span> <span class="n">pccParts</span>
<span class="k">raise</span> <span class="ne">RuntimeError</span><span class="p">(</span><span class="s1">'Bad composites parse'</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">_parse_optional</span><span class="p">(</span><span class="n">fh</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Parse the optional fields for kern pair data and composites.</span>
<span class="sd"> Returns</span>
<span class="sd"> -------</span>
<span class="sd"> kern_data : dict</span>
<span class="sd"> A dict containing kerning information. May be empty.</span>
<span class="sd"> See `._parse_kern_pairs`.</span>
<span class="sd"> composites : dict</span>
<span class="sd"> A dict containing composite information. May be empty.</span>
<span class="sd"> See `._parse_composites`.</span>
<span class="sd"> """</span>
<span class="n">optional</span> <span class="o">=</span> <span class="p">{</span>
<span class="sa">b</span><span class="s1">'StartKernData'</span><span class="p">:</span> <span class="n">_parse_kern_pairs</span><span class="p">,</span>
<span class="sa">b</span><span class="s1">'StartComposites'</span><span class="p">:</span> <span class="n">_parse_composites</span><span class="p">,</span>
<span class="p">}</span>
<span class="n">d</span> <span class="o">=</span> <span class="p">{</span><span class="sa">b</span><span class="s1">'StartKernData'</span><span class="p">:</span> <span class="p">{},</span>
<span class="sa">b</span><span class="s1">'StartComposites'</span><span class="p">:</span> <span class="p">{}}</span>
<span class="k">for</span> <span class="n">line</span> <span class="ow">in</span> <span class="n">fh</span><span class="p">:</span>
<span class="n">line</span> <span class="o">=</span> <span class="n">line</span><span class="o">.</span><span class="n">rstrip</span><span class="p">()</span>
<span class="k">if</span> <span class="ow">not</span> <span class="n">line</span><span class="p">:</span>
<span class="k">continue</span>
<span class="n">key</span> <span class="o">=</span> <span class="n">line</span><span class="o">.</span><span class="n">split</span><span class="p">()[</span><span class="mi">0</span><span class="p">]</span>
<span class="k">if</span> <span class="n">key</span> <span class="ow">in</span> <span class="n">optional</span><span class="p">:</span>
<span class="n">d</span><span class="p">[</span><span class="n">key</span><span class="p">]</span> <span class="o">=</span> <span class="n">optional</span><span class="p">[</span><span class="n">key</span><span class="p">](</span><span class="n">fh</span><span class="p">)</span>
<span class="k">return</span> <span class="n">d</span><span class="p">[</span><span class="sa">b</span><span class="s1">'StartKernData'</span><span class="p">],</span> <span class="n">d</span><span class="p">[</span><span class="sa">b</span><span class="s1">'StartComposites'</span><span class="p">]</span>
<div class="viewcode-block" id="parse_afm"><a class="viewcode-back" href="../../api/afm_api.html#matplotlib.afm.parse_afm">[docs]</a><span class="nd">@deprecated</span><span class="p">(</span><span class="s2">"3.0"</span><span class="p">,</span> <span class="n">alternative</span><span class="o">=</span><span class="s2">"the AFM class"</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">parse_afm</span><span class="p">(</span><span class="n">fh</span><span class="p">):</span>
<span class="k">return</span> <span class="n">_parse_afm</span><span class="p">(</span><span class="n">fh</span><span class="p">)</span></div>
<span class="k">def</span> <span class="nf">_parse_afm</span><span class="p">(</span><span class="n">fh</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Parse the Adobe Font Metrics file in file handle *fh*.</span>
<span class="sd"> Returns</span>
<span class="sd"> -------</span>
<span class="sd"> header : dict</span>
<span class="sd"> A header dict. See :func:`_parse_header`.</span>
<span class="sd"> cmetrics_by_ascii : dict</span>
<span class="sd"> From :func:`_parse_char_metrics`.</span>
<span class="sd"> cmetrics_by_name : dict</span>
<span class="sd"> From :func:`_parse_char_metrics`.</span>
<span class="sd"> kernpairs : dict</span>
<span class="sd"> From :func:`_parse_kern_pairs`.</span>
<span class="sd"> composites : dict</span>
<span class="sd"> From :func:`_parse_composites`</span>
<span class="sd"> """</span>
<span class="n">_sanity_check</span><span class="p">(</span><span class="n">fh</span><span class="p">)</span>
<span class="n">header</span> <span class="o">=</span> <span class="n">_parse_header</span><span class="p">(</span><span class="n">fh</span><span class="p">)</span>
<span class="n">cmetrics_by_ascii</span><span class="p">,</span> <span class="n">cmetrics_by_name</span> <span class="o">=</span> <span class="n">_parse_char_metrics</span><span class="p">(</span><span class="n">fh</span><span class="p">)</span>
<span class="n">kernpairs</span><span class="p">,</span> <span class="n">composites</span> <span class="o">=</span> <span class="n">_parse_optional</span><span class="p">(</span><span class="n">fh</span><span class="p">)</span>
<span class="k">return</span> <span class="n">header</span><span class="p">,</span> <span class="n">cmetrics_by_ascii</span><span class="p">,</span> <span class="n">cmetrics_by_name</span><span class="p">,</span> <span class="n">kernpairs</span><span class="p">,</span> <span class="n">composites</span>
<div class="viewcode-block" id="AFM"><a class="viewcode-back" href="../../api/afm_api.html#matplotlib.afm.AFM">[docs]</a><span class="k">class</span> <span class="nc">AFM</span><span class="p">(</span><span class="nb">object</span><span class="p">):</span>
<span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">fh</span><span class="p">):</span>
<span class="sd">"""Parse the AFM file in file object *fh*."""</span>
<span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_header</span><span class="p">,</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_metrics</span><span class="p">,</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_metrics_by_name</span><span class="p">,</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_kern</span><span class="p">,</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_composite</span><span class="p">)</span> <span class="o">=</span> <span class="n">_parse_afm</span><span class="p">(</span><span class="n">fh</span><span class="p">)</span>
<div class="viewcode-block" id="AFM.get_bbox_char"><a class="viewcode-back" href="../../api/afm_api.html#matplotlib.afm.AFM.get_bbox_char">[docs]</a> <span class="k">def</span> <span class="nf">get_bbox_char</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">c</span><span class="p">,</span> <span class="n">isord</span><span class="o">=</span><span class="kc">False</span><span class="p">):</span>
<span class="k">if</span> <span class="ow">not</span> <span class="n">isord</span><span class="p">:</span>
<span class="n">c</span> <span class="o">=</span> <span class="nb">ord</span><span class="p">(</span><span class="n">c</span><span class="p">)</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_metrics</span><span class="p">[</span><span class="n">c</span><span class="p">]</span><span class="o">.</span><span class="n">bbox</span></div>
<div class="viewcode-block" id="AFM.string_width_height"><a class="viewcode-back" href="../../api/afm_api.html#matplotlib.afm.AFM.string_width_height">[docs]</a> <span class="k">def</span> <span class="nf">string_width_height</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">s</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Return the string width (including kerning) and string height</span>
<span class="sd"> as a (*w*, *h*) tuple.</span>
<span class="sd"> """</span>
<span class="k">if</span> <span class="ow">not</span> <span class="nb">len</span><span class="p">(</span><span class="n">s</span><span class="p">):</span>
<span class="k">return</span> <span class="mi">0</span><span class="p">,</span> <span class="mi">0</span>
<span class="n">total_width</span> <span class="o">=</span> <span class="mi">0</span>
<span class="n">namelast</span> <span class="o">=</span> <span class="kc">None</span>
<span class="n">miny</span> <span class="o">=</span> <span class="mf">1e9</span>
<span class="n">maxy</span> <span class="o">=</span> <span class="mi">0</span>
<span class="k">for</span> <span class="n">c</span> <span class="ow">in</span> <span class="n">s</span><span class="p">:</span>
<span class="k">if</span> <span class="n">c</span> <span class="o">==</span> <span class="s1">'</span><span class="se">\n</span><span class="s1">'</span><span class="p">:</span>
<span class="k">continue</span>
<span class="n">wx</span><span class="p">,</span> <span class="n">name</span><span class="p">,</span> <span class="n">bbox</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_metrics</span><span class="p">[</span><span class="nb">ord</span><span class="p">(</span><span class="n">c</span><span class="p">)]</span>
<span class="n">total_width</span> <span class="o">+=</span> <span class="n">wx</span> <span class="o">+</span> <span class="bp">self</span><span class="o">.</span><span class="n">_kern</span><span class="o">.</span><span class="n">get</span><span class="p">((</span><span class="n">namelast</span><span class="p">,</span> <span class="n">name</span><span class="p">),</span> <span class="mi">0</span><span class="p">)</span>
<span class="n">l</span><span class="p">,</span> <span class="n">b</span><span class="p">,</span> <span class="n">w</span><span class="p">,</span> <span class="n">h</span> <span class="o">=</span> <span class="n">bbox</span>
<span class="n">miny</span> <span class="o">=</span> <span class="nb">min</span><span class="p">(</span><span class="n">miny</span><span class="p">,</span> <span class="n">b</span><span class="p">)</span>
<span class="n">maxy</span> <span class="o">=</span> <span class="nb">max</span><span class="p">(</span><span class="n">maxy</span><span class="p">,</span> <span class="n">b</span> <span class="o">+</span> <span class="n">h</span><span class="p">)</span>
<span class="n">namelast</span> <span class="o">=</span> <span class="n">name</span>
<span class="k">return</span> <span class="n">total_width</span><span class="p">,</span> <span class="n">maxy</span> <span class="o">-</span> <span class="n">miny</span></div>
<div class="viewcode-block" id="AFM.get_str_bbox_and_descent"><a class="viewcode-back" href="../../api/afm_api.html#matplotlib.afm.AFM.get_str_bbox_and_descent">[docs]</a> <span class="k">def</span> <span class="nf">get_str_bbox_and_descent</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">s</span><span class="p">):</span>
<span class="sd">"""Return the string bounding box and the maximal descent."""</span>
<span class="k">if</span> <span class="ow">not</span> <span class="nb">len</span><span class="p">(</span><span class="n">s</span><span class="p">):</span>
<span class="k">return</span> <span class="mi">0</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="mi">0</span>
<span class="n">total_width</span> <span class="o">=</span> <span class="mi">0</span>
<span class="n">namelast</span> <span class="o">=</span> <span class="kc">None</span>
<span class="n">miny</span> <span class="o">=</span> <span class="mf">1e9</span>
<span class="n">maxy</span> <span class="o">=</span> <span class="mi">0</span>
<span class="n">left</span> <span class="o">=</span> <span class="mi">0</span>
<span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">s</span><span class="p">,</span> <span class="nb">str</span><span class="p">):</span>
<span class="n">s</span> <span class="o">=</span> <span class="n">_to_str</span><span class="p">(</span><span class="n">s</span><span class="p">)</span>
<span class="k">for</span> <span class="n">c</span> <span class="ow">in</span> <span class="n">s</span><span class="p">:</span>
<span class="k">if</span> <span class="n">c</span> <span class="o">==</span> <span class="s1">'</span><span class="se">\n</span><span class="s1">'</span><span class="p">:</span>
<span class="k">continue</span>
<span class="n">name</span> <span class="o">=</span> <span class="n">uni2type1</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="nb">ord</span><span class="p">(</span><span class="n">c</span><span class="p">),</span> <span class="s1">'question'</span><span class="p">)</span>
<span class="k">try</span><span class="p">:</span>
<span class="n">wx</span><span class="p">,</span> <span class="n">_</span><span class="p">,</span> <span class="n">bbox</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_metrics_by_name</span><span class="p">[</span><span class="n">name</span><span class="p">]</span>
<span class="k">except</span> <span class="ne">KeyError</span><span class="p">:</span>
<span class="n">name</span> <span class="o">=</span> <span class="s1">'question'</span>
<span class="n">wx</span><span class="p">,</span> <span class="n">_</span><span class="p">,</span> <span class="n">bbox</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_metrics_by_name</span><span class="p">[</span><span class="n">name</span><span class="p">]</span>
<span class="n">total_width</span> <span class="o">+=</span> <span class="n">wx</span> <span class="o">+</span> <span class="bp">self</span><span class="o">.</span><span class="n">_kern</span><span class="o">.</span><span class="n">get</span><span class="p">((</span><span class="n">namelast</span><span class="p">,</span> <span class="n">name</span><span class="p">),</span> <span class="mi">0</span><span class="p">)</span>
<span class="n">l</span><span class="p">,</span> <span class="n">b</span><span class="p">,</span> <span class="n">w</span><span class="p">,</span> <span class="n">h</span> <span class="o">=</span> <span class="n">bbox</span>
<span class="n">left</span> <span class="o">=</span> <span class="nb">min</span><span class="p">(</span><span class="n">left</span><span class="p">,</span> <span class="n">l</span><span class="p">)</span>
<span class="n">miny</span> <span class="o">=</span> <span class="nb">min</span><span class="p">(</span><span class="n">miny</span><span class="p">,</span> <span class="n">b</span><span class="p">)</span>
<span class="n">maxy</span> <span class="o">=</span> <span class="nb">max</span><span class="p">(</span><span class="n">maxy</span><span class="p">,</span> <span class="n">b</span> <span class="o">+</span> <span class="n">h</span><span class="p">)</span>
<span class="n">namelast</span> <span class="o">=</span> <span class="n">name</span>
<span class="k">return</span> <span class="n">left</span><span class="p">,</span> <span class="n">miny</span><span class="p">,</span> <span class="n">total_width</span><span class="p">,</span> <span class="n">maxy</span> <span class="o">-</span> <span class="n">miny</span><span class="p">,</span> <span class="o">-</span><span class="n">miny</span></div>
<div class="viewcode-block" id="AFM.get_str_bbox"><a class="viewcode-back" href="../../api/afm_api.html#matplotlib.afm.AFM.get_str_bbox">[docs]</a> <span class="k">def</span> <span class="nf">get_str_bbox</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">s</span><span class="p">):</span>
<span class="sd">"""Return the string bounding box."""</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">get_str_bbox_and_descent</span><span class="p">(</span><span class="n">s</span><span class="p">)[:</span><span class="mi">4</span><span class="p">]</span></div>
<div class="viewcode-block" id="AFM.get_name_char"><a class="viewcode-back" href="../../api/afm_api.html#matplotlib.afm.AFM.get_name_char">[docs]</a> <span class="k">def</span> <span class="nf">get_name_char</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">c</span><span class="p">,</span> <span class="n">isord</span><span class="o">=</span><span class="kc">False</span><span class="p">):</span>
<span class="sd">"""Get the name of the character, i.e., ';' is 'semicolon'."""</span>
<span class="k">if</span> <span class="ow">not</span> <span class="n">isord</span><span class="p">:</span>
<span class="n">c</span> <span class="o">=</span> <span class="nb">ord</span><span class="p">(</span><span class="n">c</span><span class="p">)</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_metrics</span><span class="p">[</span><span class="n">c</span><span class="p">]</span><span class="o">.</span><span class="n">name</span></div>
<div class="viewcode-block" id="AFM.get_width_char"><a class="viewcode-back" href="../../api/afm_api.html#matplotlib.afm.AFM.get_width_char">[docs]</a> <span class="k">def</span> <span class="nf">get_width_char</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">c</span><span class="p">,</span> <span class="n">isord</span><span class="o">=</span><span class="kc">False</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Get the width of the character from the character metric WX field.</span>
<span class="sd"> """</span>
<span class="k">if</span> <span class="ow">not</span> <span class="n">isord</span><span class="p">:</span>
<span class="n">c</span> <span class="o">=</span> <span class="nb">ord</span><span class="p">(</span><span class="n">c</span><span class="p">)</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_metrics</span><span class="p">[</span><span class="n">c</span><span class="p">]</span><span class="o">.</span><span class="n">width</span></div>
<div class="viewcode-block" id="AFM.get_width_from_char_name"><a class="viewcode-back" href="../../api/afm_api.html#matplotlib.afm.AFM.get_width_from_char_name">[docs]</a> <span class="k">def</span> <span class="nf">get_width_from_char_name</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">):</span>
<span class="sd">"""Get the width of the character from a type1 character name."""</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_metrics_by_name</span><span class="p">[</span><span class="n">name</span><span class="p">]</span><span class="o">.</span><span class="n">width</span></div>
<div class="viewcode-block" id="AFM.get_height_char"><a class="viewcode-back" href="../../api/afm_api.html#matplotlib.afm.AFM.get_height_char">[docs]</a> <span class="k">def</span> <span class="nf">get_height_char</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">c</span><span class="p">,</span> <span class="n">isord</span><span class="o">=</span><span class="kc">False</span><span class="p">):</span>
<span class="sd">"""Get the bounding box (ink) height of character *c* (space is 0)."""</span>
<span class="k">if</span> <span class="ow">not</span> <span class="n">isord</span><span class="p">:</span>
<span class="n">c</span> <span class="o">=</span> <span class="nb">ord</span><span class="p">(</span><span class="n">c</span><span class="p">)</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_metrics</span><span class="p">[</span><span class="n">c</span><span class="p">]</span><span class="o">.</span><span class="n">bbox</span><span class="p">[</span><span class="o">-</span><span class="mi">1</span><span class="p">]</span></div>
<div class="viewcode-block" id="AFM.get_kern_dist"><a class="viewcode-back" href="../../api/afm_api.html#matplotlib.afm.AFM.get_kern_dist">[docs]</a> <span class="k">def</span> <span class="nf">get_kern_dist</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">c1</span><span class="p">,</span> <span class="n">c2</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Return the kerning pair distance (possibly 0) for chars *c1* and *c2*.</span>
<span class="sd"> """</span>
<span class="n">name1</span><span class="p">,</span> <span class="n">name2</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">get_name_char</span><span class="p">(</span><span class="n">c1</span><span class="p">),</span> <span class="bp">self</span><span class="o">.</span><span class="n">get_name_char</span><span class="p">(</span><span class="n">c2</span><span class="p">)</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">get_kern_dist_from_name</span><span class="p">(</span><span class="n">name1</span><span class="p">,</span> <span class="n">name2</span><span class="p">)</span></div>
<div class="viewcode-block" id="AFM.get_kern_dist_from_name"><a class="viewcode-back" href="../../api/afm_api.html#matplotlib.afm.AFM.get_kern_dist_from_name">[docs]</a> <span class="k">def</span> <span class="nf">get_kern_dist_from_name</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name1</span><span class="p">,</span> <span class="n">name2</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Return the kerning pair distance (possibly 0) for chars</span>
<span class="sd"> *name1* and *name2*.</span>
<span class="sd"> """</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_kern</span><span class="o">.</span><span class="n">get</span><span class="p">((</span><span class="n">name1</span><span class="p">,</span> <span class="n">name2</span><span class="p">),</span> <span class="mi">0</span><span class="p">)</span></div>
<div class="viewcode-block" id="AFM.get_fontname"><a class="viewcode-back" href="../../api/afm_api.html#matplotlib.afm.AFM.get_fontname">[docs]</a> <span class="k">def</span> <span class="nf">get_fontname</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">"""Return the font name, e.g., 'Times-Roman'."""</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_header</span><span class="p">[</span><span class="sa">b</span><span class="s1">'FontName'</span><span class="p">]</span></div>
<div class="viewcode-block" id="AFM.get_fullname"><a class="viewcode-back" href="../../api/afm_api.html#matplotlib.afm.AFM.get_fullname">[docs]</a> <span class="k">def</span> <span class="nf">get_fullname</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">"""Return the font full name, e.g., 'Times-Roman'."""</span>
<span class="n">name</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_header</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="sa">b</span><span class="s1">'FullName'</span><span class="p">)</span>
<span class="k">if</span> <span class="n">name</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span> <span class="c1"># use FontName as a substitute</span>
<span class="n">name</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_header</span><span class="p">[</span><span class="sa">b</span><span class="s1">'FontName'</span><span class="p">]</span>
<span class="k">return</span> <span class="n">name</span></div>
<div class="viewcode-block" id="AFM.get_familyname"><a class="viewcode-back" href="../../api/afm_api.html#matplotlib.afm.AFM.get_familyname">[docs]</a> <span class="k">def</span> <span class="nf">get_familyname</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">"""Return the font family name, e.g., 'Times'."""</span>
<span class="n">name</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_header</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="sa">b</span><span class="s1">'FamilyName'</span><span class="p">)</span>
<span class="k">if</span> <span class="n">name</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
<span class="k">return</span> <span class="n">name</span>
<span class="c1"># FamilyName not specified so we'll make a guess</span>
<span class="n">name</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">get_fullname</span><span class="p">()</span>
<span class="n">extras</span> <span class="o">=</span> <span class="p">(</span><span class="sa">r</span><span class="s1">'(?i)([ -](regular|plain|italic|oblique|bold|semibold|'</span>
<span class="sa">r</span><span class="s1">'light|ultralight|extra|condensed))+$'</span><span class="p">)</span>
<span class="k">return</span> <span class="n">re</span><span class="o">.</span><span class="n">sub</span><span class="p">(</span><span class="n">extras</span><span class="p">,</span> <span class="s1">''</span><span class="p">,</span> <span class="n">name</span><span class="p">)</span></div>
<span class="nd">@property</span>
<span class="k">def</span> <span class="nf">family_name</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">"""The font family name, e.g., 'Times'."""</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">get_familyname</span><span class="p">()</span>
<div class="viewcode-block" id="AFM.get_weight"><a class="viewcode-back" href="../../api/afm_api.html#matplotlib.afm.AFM.get_weight">[docs]</a> <span class="k">def</span> <span class="nf">get_weight</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">"""Return the font weight, e.g., 'Bold' or 'Roman'."""</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_header</span><span class="p">[</span><span class="sa">b</span><span class="s1">'Weight'</span><span class="p">]</span></div>
<div class="viewcode-block" id="AFM.get_angle"><a class="viewcode-back" href="../../api/afm_api.html#matplotlib.afm.AFM.get_angle">[docs]</a> <span class="k">def</span> <span class="nf">get_angle</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">"""Return the fontangle as float."""</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_header</span><span class="p">[</span><span class="sa">b</span><span class="s1">'ItalicAngle'</span><span class="p">]</span></div>
<div class="viewcode-block" id="AFM.get_capheight"><a class="viewcode-back" href="../../api/afm_api.html#matplotlib.afm.AFM.get_capheight">[docs]</a> <span class="k">def</span> <span class="nf">get_capheight</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">"""Return the cap height as float."""</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_header</span><span class="p">[</span><span class="sa">b</span><span class="s1">'CapHeight'</span><span class="p">]</span></div>
<div class="viewcode-block" id="AFM.get_xheight"><a class="viewcode-back" href="../../api/afm_api.html#matplotlib.afm.AFM.get_xheight">[docs]</a> <span class="k">def</span> <span class="nf">get_xheight</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">"""Return the xheight as float."""</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_header</span><span class="p">[</span><span class="sa">b</span><span class="s1">'XHeight'</span><span class="p">]</span></div>
<div class="viewcode-block" id="AFM.get_underline_thickness"><a class="viewcode-back" href="../../api/afm_api.html#matplotlib.afm.AFM.get_underline_thickness">[docs]</a> <span class="k">def</span> <span class="nf">get_underline_thickness</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">"""Return the underline thickness as float."""</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_header</span><span class="p">[</span><span class="sa">b</span><span class="s1">'UnderlineThickness'</span><span class="p">]</span></div>
<div class="viewcode-block" id="AFM.get_horizontal_stem_width"><a class="viewcode-back" href="../../api/afm_api.html#matplotlib.afm.AFM.get_horizontal_stem_width">[docs]</a> <span class="k">def</span> <span class="nf">get_horizontal_stem_width</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Return the standard horizontal stem width as float, or *None* if</span>
<span class="sd"> not specified in AFM file.</span>
<span class="sd"> """</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_header</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="sa">b</span><span class="s1">'StdHW'</span><span class="p">,</span> <span class="kc">None</span><span class="p">)</span></div>
<div class="viewcode-block" id="AFM.get_vertical_stem_width"><a class="viewcode-back" href="../../api/afm_api.html#matplotlib.afm.AFM.get_vertical_stem_width">[docs]</a> <span class="k">def</span> <span class="nf">get_vertical_stem_width</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Return the standard vertical stem width as float, or *None* if</span>
<span class="sd"> not specified in AFM file.</span>
<span class="sd"> """</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_header</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="sa">b</span><span class="s1">'StdVW'</span><span class="p">,</span> <span class="kc">None</span><span class="p">)</span></div></div>
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