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<h1>Source code for PIL.PcfFontFile</h1><div class="highlight"><pre>
<span></span><span class="c1">#</span>
<span class="c1"># THIS IS WORK IN PROGRESS</span>
<span class="c1">#</span>
<span class="c1"># The Python Imaging Library</span>
<span class="c1"># $Id$</span>
<span class="c1">#</span>
<span class="c1"># portable compiled font file parser</span>
<span class="c1">#</span>
<span class="c1"># history:</span>
<span class="c1"># 1997-08-19 fl created</span>
<span class="c1"># 2003-09-13 fl fixed loading of unicode fonts</span>
<span class="c1">#</span>
<span class="c1"># Copyright (c) 1997-2003 by Secret Labs AB.</span>
<span class="c1"># Copyright (c) 1997-2003 by Fredrik Lundh.</span>
<span class="c1">#</span>
<span class="c1"># See the README file for information on usage and redistribution.</span>
<span class="c1">#</span>
<span class="kn">from</span> <span class="nn">.</span> <span class="k">import</span> <span class="n">Image</span><span class="p">,</span> <span class="n">FontFile</span>
<span class="kn">from</span> <span class="nn">._binary</span> <span class="k">import</span> <span class="n">i8</span><span class="p">,</span> <span class="n">i16le</span> <span class="k">as</span> <span class="n">l16</span><span class="p">,</span> <span class="n">i32le</span> <span class="k">as</span> <span class="n">l32</span><span class="p">,</span> <span class="n">i16be</span> <span class="k">as</span> <span class="n">b16</span><span class="p">,</span> <span class="n">i32be</span> <span class="k">as</span> <span class="n">b32</span>
<span class="c1"># --------------------------------------------------------------------</span>
<span class="c1"># declarations</span>
<span class="n">PCF_MAGIC</span> <span class="o">=</span> <span class="mh">0x70636601</span> <span class="c1"># "\x01fcp"</span>
<span class="n">PCF_PROPERTIES</span> <span class="o">=</span> <span class="p">(</span><span class="mi">1</span> <span class="o"><<</span> <span class="mi">0</span><span class="p">)</span>
<span class="n">PCF_ACCELERATORS</span> <span class="o">=</span> <span class="p">(</span><span class="mi">1</span> <span class="o"><<</span> <span class="mi">1</span><span class="p">)</span>
<span class="n">PCF_METRICS</span> <span class="o">=</span> <span class="p">(</span><span class="mi">1</span> <span class="o"><<</span> <span class="mi">2</span><span class="p">)</span>
<span class="n">PCF_BITMAPS</span> <span class="o">=</span> <span class="p">(</span><span class="mi">1</span> <span class="o"><<</span> <span class="mi">3</span><span class="p">)</span>
<span class="n">PCF_INK_METRICS</span> <span class="o">=</span> <span class="p">(</span><span class="mi">1</span> <span class="o"><<</span> <span class="mi">4</span><span class="p">)</span>
<span class="n">PCF_BDF_ENCODINGS</span> <span class="o">=</span> <span class="p">(</span><span class="mi">1</span> <span class="o"><<</span> <span class="mi">5</span><span class="p">)</span>
<span class="n">PCF_SWIDTHS</span> <span class="o">=</span> <span class="p">(</span><span class="mi">1</span> <span class="o"><<</span> <span class="mi">6</span><span class="p">)</span>
<span class="n">PCF_GLYPH_NAMES</span> <span class="o">=</span> <span class="p">(</span><span class="mi">1</span> <span class="o"><<</span> <span class="mi">7</span><span class="p">)</span>
<span class="n">PCF_BDF_ACCELERATORS</span> <span class="o">=</span> <span class="p">(</span><span class="mi">1</span> <span class="o"><<</span> <span class="mi">8</span><span class="p">)</span>
<span class="n">BYTES_PER_ROW</span> <span class="o">=</span> <span class="p">[</span>
<span class="k">lambda</span> <span class="n">bits</span><span class="p">:</span> <span class="p">((</span><span class="n">bits</span><span class="o">+</span><span class="mi">7</span><span class="p">)</span> <span class="o">>></span> <span class="mi">3</span><span class="p">),</span>
<span class="k">lambda</span> <span class="n">bits</span><span class="p">:</span> <span class="p">((</span><span class="n">bits</span><span class="o">+</span><span class="mi">15</span><span class="p">)</span> <span class="o">>></span> <span class="mi">3</span><span class="p">)</span> <span class="o">&</span> <span class="o">~</span><span class="mi">1</span><span class="p">,</span>
<span class="k">lambda</span> <span class="n">bits</span><span class="p">:</span> <span class="p">((</span><span class="n">bits</span><span class="o">+</span><span class="mi">31</span><span class="p">)</span> <span class="o">>></span> <span class="mi">3</span><span class="p">)</span> <span class="o">&</span> <span class="o">~</span><span class="mi">3</span><span class="p">,</span>
<span class="k">lambda</span> <span class="n">bits</span><span class="p">:</span> <span class="p">((</span><span class="n">bits</span><span class="o">+</span><span class="mi">63</span><span class="p">)</span> <span class="o">>></span> <span class="mi">3</span><span class="p">)</span> <span class="o">&</span> <span class="o">~</span><span class="mi">7</span><span class="p">,</span>
<span class="p">]</span>
<div class="viewcode-block" id="sz"><a class="viewcode-back" href="../../PIL.html#PIL.PcfFontFile.sz">[docs]</a><span class="k">def</span> <span class="nf">sz</span><span class="p">(</span><span class="n">s</span><span class="p">,</span> <span class="n">o</span><span class="p">):</span>
<span class="k">return</span> <span class="n">s</span><span class="p">[</span><span class="n">o</span><span class="p">:</span><span class="n">s</span><span class="o">.</span><span class="n">index</span><span class="p">(</span><span class="sa">b</span><span class="s2">"</span><span class="se">\0</span><span class="s2">"</span><span class="p">,</span> <span class="n">o</span><span class="p">)]</span></div>
<span class="c1">##</span>
<span class="c1"># Font file plugin for the X11 PCF format.</span>
<div class="viewcode-block" id="PcfFontFile"><a class="viewcode-back" href="../../PIL.html#PIL.PcfFontFile.PcfFontFile">[docs]</a><span class="k">class</span> <span class="nc">PcfFontFile</span><span class="p">(</span><span class="n">FontFile</span><span class="o">.</span><span class="n">FontFile</span><span class="p">):</span>
<span class="n">name</span> <span class="o">=</span> <span class="s2">"name"</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">fp</span><span class="p">):</span>
<span class="n">magic</span> <span class="o">=</span> <span class="n">l32</span><span class="p">(</span><span class="n">fp</span><span class="o">.</span><span class="n">read</span><span class="p">(</span><span class="mi">4</span><span class="p">))</span>
<span class="k">if</span> <span class="n">magic</span> <span class="o">!=</span> <span class="n">PCF_MAGIC</span><span class="p">:</span>
<span class="k">raise</span> <span class="ne">SyntaxError</span><span class="p">(</span><span class="s2">"not a PCF file"</span><span class="p">)</span>
<span class="n">FontFile</span><span class="o">.</span><span class="n">FontFile</span><span class="o">.</span><span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span>
<span class="n">count</span> <span class="o">=</span> <span class="n">l32</span><span class="p">(</span><span class="n">fp</span><span class="o">.</span><span class="n">read</span><span class="p">(</span><span class="mi">4</span><span class="p">))</span>
<span class="bp">self</span><span class="o">.</span><span class="n">toc</span> <span class="o">=</span> <span class="p">{}</span>
<span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="n">count</span><span class="p">):</span>
<span class="nb">type</span> <span class="o">=</span> <span class="n">l32</span><span class="p">(</span><span class="n">fp</span><span class="o">.</span><span class="n">read</span><span class="p">(</span><span class="mi">4</span><span class="p">))</span>
<span class="bp">self</span><span class="o">.</span><span class="n">toc</span><span class="p">[</span><span class="nb">type</span><span class="p">]</span> <span class="o">=</span> <span class="n">l32</span><span class="p">(</span><span class="n">fp</span><span class="o">.</span><span class="n">read</span><span class="p">(</span><span class="mi">4</span><span class="p">)),</span> <span class="n">l32</span><span class="p">(</span><span class="n">fp</span><span class="o">.</span><span class="n">read</span><span class="p">(</span><span class="mi">4</span><span class="p">)),</span> <span class="n">l32</span><span class="p">(</span><span class="n">fp</span><span class="o">.</span><span class="n">read</span><span class="p">(</span><span class="mi">4</span><span class="p">))</span>
<span class="bp">self</span><span class="o">.</span><span class="n">fp</span> <span class="o">=</span> <span class="n">fp</span>
<span class="bp">self</span><span class="o">.</span><span class="n">info</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_load_properties</span><span class="p">()</span>
<span class="n">metrics</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_load_metrics</span><span class="p">()</span>
<span class="n">bitmaps</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_load_bitmaps</span><span class="p">(</span><span class="n">metrics</span><span class="p">)</span>
<span class="n">encoding</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_load_encoding</span><span class="p">()</span>
<span class="c1">#</span>
<span class="c1"># create glyph structure</span>
<span class="k">for</span> <span class="n">ch</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="mi">256</span><span class="p">):</span>
<span class="n">ix</span> <span class="o">=</span> <span class="n">encoding</span><span class="p">[</span><span class="n">ch</span><span class="p">]</span>
<span class="k">if</span> <span class="n">ix</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
<span class="n">x</span><span class="p">,</span> <span class="n">y</span><span class="p">,</span> <span class="n">l</span><span class="p">,</span> <span class="n">r</span><span class="p">,</span> <span class="n">w</span><span class="p">,</span> <span class="n">a</span><span class="p">,</span> <span class="n">d</span><span class="p">,</span> <span class="n">f</span> <span class="o">=</span> <span class="n">metrics</span><span class="p">[</span><span class="n">ix</span><span class="p">]</span>
<span class="n">glyph</span> <span class="o">=</span> <span class="p">(</span><span class="n">w</span><span class="p">,</span> <span class="mi">0</span><span class="p">),</span> <span class="p">(</span><span class="n">l</span><span class="p">,</span> <span class="n">d</span><span class="o">-</span><span class="n">y</span><span class="p">,</span> <span class="n">x</span><span class="o">+</span><span class="n">l</span><span class="p">,</span> <span class="n">d</span><span class="p">),</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="n">x</span><span class="p">,</span> <span class="n">y</span><span class="p">),</span> <span class="n">bitmaps</span><span class="p">[</span><span class="n">ix</span><span class="p">]</span>
<span class="bp">self</span><span class="o">.</span><span class="n">glyph</span><span class="p">[</span><span class="n">ch</span><span class="p">]</span> <span class="o">=</span> <span class="n">glyph</span>
<span class="k">def</span> <span class="nf">_getformat</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">tag</span><span class="p">):</span>
<span class="nb">format</span><span class="p">,</span> <span class="n">size</span><span class="p">,</span> <span class="n">offset</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">toc</span><span class="p">[</span><span class="n">tag</span><span class="p">]</span>
<span class="n">fp</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">fp</span>
<span class="n">fp</span><span class="o">.</span><span class="n">seek</span><span class="p">(</span><span class="n">offset</span><span class="p">)</span>
<span class="nb">format</span> <span class="o">=</span> <span class="n">l32</span><span class="p">(</span><span class="n">fp</span><span class="o">.</span><span class="n">read</span><span class="p">(</span><span class="mi">4</span><span class="p">))</span>
<span class="k">if</span> <span class="nb">format</span> <span class="o">&</span> <span class="mi">4</span><span class="p">:</span>
<span class="n">i16</span><span class="p">,</span> <span class="n">i32</span> <span class="o">=</span> <span class="n">b16</span><span class="p">,</span> <span class="n">b32</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">i16</span><span class="p">,</span> <span class="n">i32</span> <span class="o">=</span> <span class="n">l16</span><span class="p">,</span> <span class="n">l32</span>
<span class="k">return</span> <span class="n">fp</span><span class="p">,</span> <span class="nb">format</span><span class="p">,</span> <span class="n">i16</span><span class="p">,</span> <span class="n">i32</span>
<span class="k">def</span> <span class="nf">_load_properties</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="c1">#</span>
<span class="c1"># font properties</span>
<span class="n">properties</span> <span class="o">=</span> <span class="p">{}</span>
<span class="n">fp</span><span class="p">,</span> <span class="nb">format</span><span class="p">,</span> <span class="n">i16</span><span class="p">,</span> <span class="n">i32</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_getformat</span><span class="p">(</span><span class="n">PCF_PROPERTIES</span><span class="p">)</span>
<span class="n">nprops</span> <span class="o">=</span> <span class="n">i32</span><span class="p">(</span><span class="n">fp</span><span class="o">.</span><span class="n">read</span><span class="p">(</span><span class="mi">4</span><span class="p">))</span>
<span class="c1"># read property description</span>
<span class="n">p</span> <span class="o">=</span> <span class="p">[]</span>
<span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="n">nprops</span><span class="p">):</span>
<span class="n">p</span><span class="o">.</span><span class="n">append</span><span class="p">((</span><span class="n">i32</span><span class="p">(</span><span class="n">fp</span><span class="o">.</span><span class="n">read</span><span class="p">(</span><span class="mi">4</span><span class="p">)),</span> <span class="n">i8</span><span class="p">(</span><span class="n">fp</span><span class="o">.</span><span class="n">read</span><span class="p">(</span><span class="mi">1</span><span class="p">)),</span> <span class="n">i32</span><span class="p">(</span><span class="n">fp</span><span class="o">.</span><span class="n">read</span><span class="p">(</span><span class="mi">4</span><span class="p">))))</span>
<span class="k">if</span> <span class="n">nprops</span> <span class="o">&</span> <span class="mi">3</span><span class="p">:</span>
<span class="n">fp</span><span class="o">.</span><span class="n">seek</span><span class="p">(</span><span class="mi">4</span> <span class="o">-</span> <span class="p">(</span><span class="n">nprops</span> <span class="o">&</span> <span class="mi">3</span><span class="p">),</span> <span class="mi">1</span><span class="p">)</span> <span class="c1"># pad</span>
<span class="n">data</span> <span class="o">=</span> <span class="n">fp</span><span class="o">.</span><span class="n">read</span><span class="p">(</span><span class="n">i32</span><span class="p">(</span><span class="n">fp</span><span class="o">.</span><span class="n">read</span><span class="p">(</span><span class="mi">4</span><span class="p">)))</span>
<span class="k">for</span> <span class="n">k</span><span class="p">,</span> <span class="n">s</span><span class="p">,</span> <span class="n">v</span> <span class="ow">in</span> <span class="n">p</span><span class="p">:</span>
<span class="n">k</span> <span class="o">=</span> <span class="n">sz</span><span class="p">(</span><span class="n">data</span><span class="p">,</span> <span class="n">k</span><span class="p">)</span>
<span class="k">if</span> <span class="n">s</span><span class="p">:</span>
<span class="n">v</span> <span class="o">=</span> <span class="n">sz</span><span class="p">(</span><span class="n">data</span><span class="p">,</span> <span class="n">v</span><span class="p">)</span>
<span class="n">properties</span><span class="p">[</span><span class="n">k</span><span class="p">]</span> <span class="o">=</span> <span class="n">v</span>
<span class="k">return</span> <span class="n">properties</span>
<span class="k">def</span> <span class="nf">_load_metrics</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="c1">#</span>
<span class="c1"># font metrics</span>
<span class="n">metrics</span> <span class="o">=</span> <span class="p">[]</span>
<span class="n">fp</span><span class="p">,</span> <span class="nb">format</span><span class="p">,</span> <span class="n">i16</span><span class="p">,</span> <span class="n">i32</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_getformat</span><span class="p">(</span><span class="n">PCF_METRICS</span><span class="p">)</span>
<span class="n">append</span> <span class="o">=</span> <span class="n">metrics</span><span class="o">.</span><span class="n">append</span>
<span class="k">if</span> <span class="p">(</span><span class="nb">format</span> <span class="o">&</span> <span class="mh">0xff00</span><span class="p">)</span> <span class="o">==</span> <span class="mh">0x100</span><span class="p">:</span>
<span class="c1"># "compressed" metrics</span>
<span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="n">i16</span><span class="p">(</span><span class="n">fp</span><span class="o">.</span><span class="n">read</span><span class="p">(</span><span class="mi">2</span><span class="p">))):</span>
<span class="n">left</span> <span class="o">=</span> <span class="n">i8</span><span class="p">(</span><span class="n">fp</span><span class="o">.</span><span class="n">read</span><span class="p">(</span><span class="mi">1</span><span class="p">))</span> <span class="o">-</span> <span class="mi">128</span>
<span class="n">right</span> <span class="o">=</span> <span class="n">i8</span><span class="p">(</span><span class="n">fp</span><span class="o">.</span><span class="n">read</span><span class="p">(</span><span class="mi">1</span><span class="p">))</span> <span class="o">-</span> <span class="mi">128</span>
<span class="n">width</span> <span class="o">=</span> <span class="n">i8</span><span class="p">(</span><span class="n">fp</span><span class="o">.</span><span class="n">read</span><span class="p">(</span><span class="mi">1</span><span class="p">))</span> <span class="o">-</span> <span class="mi">128</span>
<span class="n">ascent</span> <span class="o">=</span> <span class="n">i8</span><span class="p">(</span><span class="n">fp</span><span class="o">.</span><span class="n">read</span><span class="p">(</span><span class="mi">1</span><span class="p">))</span> <span class="o">-</span> <span class="mi">128</span>
<span class="n">descent</span> <span class="o">=</span> <span class="n">i8</span><span class="p">(</span><span class="n">fp</span><span class="o">.</span><span class="n">read</span><span class="p">(</span><span class="mi">1</span><span class="p">))</span> <span class="o">-</span> <span class="mi">128</span>
<span class="n">xsize</span> <span class="o">=</span> <span class="n">right</span> <span class="o">-</span> <span class="n">left</span>
<span class="n">ysize</span> <span class="o">=</span> <span class="n">ascent</span> <span class="o">+</span> <span class="n">descent</span>
<span class="n">append</span><span class="p">(</span>
<span class="p">(</span><span class="n">xsize</span><span class="p">,</span> <span class="n">ysize</span><span class="p">,</span> <span class="n">left</span><span class="p">,</span> <span class="n">right</span><span class="p">,</span> <span class="n">width</span><span class="p">,</span>
<span class="n">ascent</span><span class="p">,</span> <span class="n">descent</span><span class="p">,</span> <span class="mi">0</span><span class="p">)</span>
<span class="p">)</span>
<span class="k">else</span><span class="p">:</span>
<span class="c1"># "jumbo" metrics</span>
<span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="n">i32</span><span class="p">(</span><span class="n">fp</span><span class="o">.</span><span class="n">read</span><span class="p">(</span><span class="mi">4</span><span class="p">))):</span>
<span class="n">left</span> <span class="o">=</span> <span class="n">i16</span><span class="p">(</span><span class="n">fp</span><span class="o">.</span><span class="n">read</span><span class="p">(</span><span class="mi">2</span><span class="p">))</span>
<span class="n">right</span> <span class="o">=</span> <span class="n">i16</span><span class="p">(</span><span class="n">fp</span><span class="o">.</span><span class="n">read</span><span class="p">(</span><span class="mi">2</span><span class="p">))</span>
<span class="n">width</span> <span class="o">=</span> <span class="n">i16</span><span class="p">(</span><span class="n">fp</span><span class="o">.</span><span class="n">read</span><span class="p">(</span><span class="mi">2</span><span class="p">))</span>
<span class="n">ascent</span> <span class="o">=</span> <span class="n">i16</span><span class="p">(</span><span class="n">fp</span><span class="o">.</span><span class="n">read</span><span class="p">(</span><span class="mi">2</span><span class="p">))</span>
<span class="n">descent</span> <span class="o">=</span> <span class="n">i16</span><span class="p">(</span><span class="n">fp</span><span class="o">.</span><span class="n">read</span><span class="p">(</span><span class="mi">2</span><span class="p">))</span>
<span class="n">attributes</span> <span class="o">=</span> <span class="n">i16</span><span class="p">(</span><span class="n">fp</span><span class="o">.</span><span class="n">read</span><span class="p">(</span><span class="mi">2</span><span class="p">))</span>
<span class="n">xsize</span> <span class="o">=</span> <span class="n">right</span> <span class="o">-</span> <span class="n">left</span>
<span class="n">ysize</span> <span class="o">=</span> <span class="n">ascent</span> <span class="o">+</span> <span class="n">descent</span>
<span class="n">append</span><span class="p">(</span>
<span class="p">(</span><span class="n">xsize</span><span class="p">,</span> <span class="n">ysize</span><span class="p">,</span> <span class="n">left</span><span class="p">,</span> <span class="n">right</span><span class="p">,</span> <span class="n">width</span><span class="p">,</span>
<span class="n">ascent</span><span class="p">,</span> <span class="n">descent</span><span class="p">,</span> <span class="n">attributes</span><span class="p">)</span>
<span class="p">)</span>
<span class="k">return</span> <span class="n">metrics</span>
<span class="k">def</span> <span class="nf">_load_bitmaps</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">metrics</span><span class="p">):</span>
<span class="c1">#</span>
<span class="c1"># bitmap data</span>
<span class="n">bitmaps</span> <span class="o">=</span> <span class="p">[]</span>
<span class="n">fp</span><span class="p">,</span> <span class="nb">format</span><span class="p">,</span> <span class="n">i16</span><span class="p">,</span> <span class="n">i32</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_getformat</span><span class="p">(</span><span class="n">PCF_BITMAPS</span><span class="p">)</span>
<span class="n">nbitmaps</span> <span class="o">=</span> <span class="n">i32</span><span class="p">(</span><span class="n">fp</span><span class="o">.</span><span class="n">read</span><span class="p">(</span><span class="mi">4</span><span class="p">))</span>
<span class="k">if</span> <span class="n">nbitmaps</span> <span class="o">!=</span> <span class="nb">len</span><span class="p">(</span><span class="n">metrics</span><span class="p">):</span>
<span class="k">raise</span> <span class="ne">IOError</span><span class="p">(</span><span class="s2">"Wrong number of bitmaps"</span><span class="p">)</span>
<span class="n">offsets</span> <span class="o">=</span> <span class="p">[]</span>
<span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="n">nbitmaps</span><span class="p">):</span>
<span class="n">offsets</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">i32</span><span class="p">(</span><span class="n">fp</span><span class="o">.</span><span class="n">read</span><span class="p">(</span><span class="mi">4</span><span class="p">)))</span>
<span class="n">bitmapSizes</span> <span class="o">=</span> <span class="p">[]</span>
<span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="mi">4</span><span class="p">):</span>
<span class="n">bitmapSizes</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">i32</span><span class="p">(</span><span class="n">fp</span><span class="o">.</span><span class="n">read</span><span class="p">(</span><span class="mi">4</span><span class="p">)))</span>
<span class="c1"># byteorder = format & 4 # non-zero => MSB</span>
<span class="n">bitorder</span> <span class="o">=</span> <span class="nb">format</span> <span class="o">&</span> <span class="mi">8</span> <span class="c1"># non-zero => MSB</span>
<span class="n">padindex</span> <span class="o">=</span> <span class="nb">format</span> <span class="o">&</span> <span class="mi">3</span>
<span class="n">bitmapsize</span> <span class="o">=</span> <span class="n">bitmapSizes</span><span class="p">[</span><span class="n">padindex</span><span class="p">]</span>
<span class="n">offsets</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">bitmapsize</span><span class="p">)</span>
<span class="n">data</span> <span class="o">=</span> <span class="n">fp</span><span class="o">.</span><span class="n">read</span><span class="p">(</span><span class="n">bitmapsize</span><span class="p">)</span>
<span class="n">pad</span> <span class="o">=</span> <span class="n">BYTES_PER_ROW</span><span class="p">[</span><span class="n">padindex</span><span class="p">]</span>
<span class="n">mode</span> <span class="o">=</span> <span class="s2">"1;R"</span>
<span class="k">if</span> <span class="n">bitorder</span><span class="p">:</span>
<span class="n">mode</span> <span class="o">=</span> <span class="s2">"1"</span>
<span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="n">nbitmaps</span><span class="p">):</span>
<span class="n">x</span><span class="p">,</span> <span class="n">y</span><span class="p">,</span> <span class="n">l</span><span class="p">,</span> <span class="n">r</span><span class="p">,</span> <span class="n">w</span><span class="p">,</span> <span class="n">a</span><span class="p">,</span> <span class="n">d</span><span class="p">,</span> <span class="n">f</span> <span class="o">=</span> <span class="n">metrics</span><span class="p">[</span><span class="n">i</span><span class="p">]</span>
<span class="n">b</span><span class="p">,</span> <span class="n">e</span> <span class="o">=</span> <span class="n">offsets</span><span class="p">[</span><span class="n">i</span><span class="p">],</span> <span class="n">offsets</span><span class="p">[</span><span class="n">i</span><span class="o">+</span><span class="mi">1</span><span class="p">]</span>
<span class="n">bitmaps</span><span class="o">.</span><span class="n">append</span><span class="p">(</span>
<span class="n">Image</span><span class="o">.</span><span class="n">frombytes</span><span class="p">(</span><span class="s2">"1"</span><span class="p">,</span> <span class="p">(</span><span class="n">x</span><span class="p">,</span> <span class="n">y</span><span class="p">),</span> <span class="n">data</span><span class="p">[</span><span class="n">b</span><span class="p">:</span><span class="n">e</span><span class="p">],</span> <span class="s2">"raw"</span><span class="p">,</span> <span class="n">mode</span><span class="p">,</span> <span class="n">pad</span><span class="p">(</span><span class="n">x</span><span class="p">))</span>
<span class="p">)</span>
<span class="k">return</span> <span class="n">bitmaps</span>
<span class="k">def</span> <span class="nf">_load_encoding</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="c1"># map character code to bitmap index</span>
<span class="n">encoding</span> <span class="o">=</span> <span class="p">[</span><span class="kc">None</span><span class="p">]</span> <span class="o">*</span> <span class="mi">256</span>
<span class="n">fp</span><span class="p">,</span> <span class="nb">format</span><span class="p">,</span> <span class="n">i16</span><span class="p">,</span> <span class="n">i32</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_getformat</span><span class="p">(</span><span class="n">PCF_BDF_ENCODINGS</span><span class="p">)</span>
<span class="n">firstCol</span><span class="p">,</span> <span class="n">lastCol</span> <span class="o">=</span> <span class="n">i16</span><span class="p">(</span><span class="n">fp</span><span class="o">.</span><span class="n">read</span><span class="p">(</span><span class="mi">2</span><span class="p">)),</span> <span class="n">i16</span><span class="p">(</span><span class="n">fp</span><span class="o">.</span><span class="n">read</span><span class="p">(</span><span class="mi">2</span><span class="p">))</span>
<span class="n">firstRow</span><span class="p">,</span> <span class="n">lastRow</span> <span class="o">=</span> <span class="n">i16</span><span class="p">(</span><span class="n">fp</span><span class="o">.</span><span class="n">read</span><span class="p">(</span><span class="mi">2</span><span class="p">)),</span> <span class="n">i16</span><span class="p">(</span><span class="n">fp</span><span class="o">.</span><span class="n">read</span><span class="p">(</span><span class="mi">2</span><span class="p">))</span>
<span class="n">i16</span><span class="p">(</span><span class="n">fp</span><span class="o">.</span><span class="n">read</span><span class="p">(</span><span class="mi">2</span><span class="p">))</span> <span class="c1"># default</span>
<span class="n">nencoding</span> <span class="o">=</span> <span class="p">(</span><span class="n">lastCol</span> <span class="o">-</span> <span class="n">firstCol</span> <span class="o">+</span> <span class="mi">1</span><span class="p">)</span> <span class="o">*</span> <span class="p">(</span><span class="n">lastRow</span> <span class="o">-</span> <span class="n">firstRow</span> <span class="o">+</span> <span class="mi">1</span><span class="p">)</span>
<span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="n">nencoding</span><span class="p">):</span>
<span class="n">encodingOffset</span> <span class="o">=</span> <span class="n">i16</span><span class="p">(</span><span class="n">fp</span><span class="o">.</span><span class="n">read</span><span class="p">(</span><span class="mi">2</span><span class="p">))</span>
<span class="k">if</span> <span class="n">encodingOffset</span> <span class="o">!=</span> <span class="mh">0xFFFF</span><span class="p">:</span>
<span class="k">try</span><span class="p">:</span>
<span class="n">encoding</span><span class="p">[</span><span class="n">i</span><span class="o">+</span><span class="n">firstCol</span><span class="p">]</span> <span class="o">=</span> <span class="n">encodingOffset</span>
<span class="k">except</span> <span class="ne">IndexError</span><span class="p">:</span>
<span class="k">break</span> <span class="c1"># only load ISO-8859-1 glyphs</span>
<span class="k">return</span> <span class="n">encoding</span></div>
</pre></div>
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