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<h1>Source code for PIL.ImageFont</h1><div class="highlight"><pre>
<span></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"># PIL raster font management</span>
<span class="c1">#</span>
<span class="c1"># History:</span>
<span class="c1"># 1996-08-07 fl created (experimental)</span>
<span class="c1"># 1997-08-25 fl minor adjustments to handle fonts from pilfont 0.3</span>
<span class="c1"># 1999-02-06 fl rewrote most font management stuff in C</span>
<span class="c1"># 1999-03-17 fl take pth files into account in load_path (from Richard Jones)</span>
<span class="c1"># 2001-02-17 fl added freetype support</span>
<span class="c1"># 2001-05-09 fl added TransposedFont wrapper class</span>
<span class="c1"># 2002-03-04 fl make sure we have a "L" or "1" font</span>
<span class="c1"># 2002-12-04 fl skip non-directory entries in the system path</span>
<span class="c1"># 2003-04-29 fl add embedded default font</span>
<span class="c1"># 2003-09-27 fl added support for truetype charmap encodings</span>
<span class="c1">#</span>
<span class="c1"># Todo:</span>
<span class="c1"># Adapt to PILFONT2 format (16-bit fonts, compressed, single file)</span>
<span class="c1">#</span>
<span class="c1"># Copyright (c) 1997-2003 by Secret Labs AB</span>
<span class="c1"># Copyright (c) 1996-2003 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="kn">from</span> <span class="nn">._util</span> <span class="k">import</span> <span class="n">isDirectory</span><span class="p">,</span> <span class="n">isPath</span><span class="p">,</span> <span class="n">py3</span>
<span class="kn">import</span> <span class="nn">os</span>
<span class="kn">import</span> <span class="nn">sys</span>
<span class="n">LAYOUT_BASIC</span> <span class="o">=</span> <span class="mi">0</span>
<span class="n">LAYOUT_RAQM</span> <span class="o">=</span> <span class="mi">1</span>
<span class="k">class</span> <span class="nc">_imagingft_not_installed</span><span class="p">(</span><span class="nb">object</span><span class="p">):</span>
<span class="c1"># module placeholder</span>
<span class="k">def</span> <span class="nf">__getattr__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="nb">id</span><span class="p">):</span>
<span class="k">raise</span> <span class="ne">ImportError</span><span class="p">(</span><span class="s2">"The _imagingft C module is not installed"</span><span class="p">)</span>
<span class="k">try</span><span class="p">:</span>
<span class="kn">from</span> <span class="nn">.</span> <span class="k">import</span> <span class="n">_imagingft</span> <span class="k">as</span> <span class="n">core</span>
<span class="k">except</span> <span class="ne">ImportError</span><span class="p">:</span>
<span class="n">core</span> <span class="o">=</span> <span class="n">_imagingft_not_installed</span><span class="p">()</span>
<span class="c1"># FIXME: add support for pilfont2 format (see FontFile.py)</span>
<span class="c1"># --------------------------------------------------------------------</span>
<span class="c1"># Font metrics format:</span>
<span class="c1"># "PILfont" LF</span>
<span class="c1"># fontdescriptor LF</span>
<span class="c1"># (optional) key=value... LF</span>
<span class="c1"># "DATA" LF</span>
<span class="c1"># binary data: 256*10*2 bytes (dx, dy, dstbox, srcbox)</span>
<span class="c1">#</span>
<span class="c1"># To place a character, cut out srcbox and paste at dstbox,</span>
<span class="c1"># relative to the character position. Then move the character</span>
<span class="c1"># position according to dx, dy.</span>
<span class="c1"># --------------------------------------------------------------------</span>
<span class="k">class</span> <span class="nc">ImageFont</span><span class="p">(</span><span class="nb">object</span><span class="p">):</span>
<span class="s2">"PIL font wrapper"</span>
<span class="k">def</span> <span class="nf">_load_pilfont</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">filename</span><span class="p">):</span>
<span class="k">with</span> <span class="nb">open</span><span class="p">(</span><span class="n">filename</span><span class="p">,</span> <span class="s2">"rb"</span><span class="p">)</span> <span class="k">as</span> <span class="n">fp</span><span class="p">:</span>
<span class="k">for</span> <span class="n">ext</span> <span class="ow">in</span> <span class="p">(</span><span class="s2">".png"</span><span class="p">,</span> <span class="s2">".gif"</span><span class="p">,</span> <span class="s2">".pbm"</span><span class="p">):</span>
<span class="k">try</span><span class="p">:</span>
<span class="n">fullname</span> <span class="o">=</span> <span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">splitext</span><span class="p">(</span><span class="n">filename</span><span class="p">)[</span><span class="mi">0</span><span class="p">]</span> <span class="o">+</span> <span class="n">ext</span>
<span class="n">image</span> <span class="o">=</span> <span class="n">Image</span><span class="o">.</span><span class="n">open</span><span class="p">(</span><span class="n">fullname</span><span class="p">)</span>
<span class="k">except</span> <span class="ne">Exception</span><span class="p">:</span>
<span class="k">pass</span>
<span class="k">else</span><span class="p">:</span>
<span class="k">if</span> <span class="n">image</span> <span class="ow">and</span> <span class="n">image</span><span class="o">.</span><span class="n">mode</span> <span class="ow">in</span> <span class="p">(</span><span class="s2">"1"</span><span class="p">,</span> <span class="s2">"L"</span><span class="p">):</span>
<span class="k">break</span>
<span class="k">else</span><span class="p">:</span>
<span class="k">raise</span> <span class="ne">IOError</span><span class="p">(</span><span class="s2">"cannot find glyph data file"</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">file</span> <span class="o">=</span> <span class="n">fullname</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_load_pilfont_data</span><span class="p">(</span><span class="n">fp</span><span class="p">,</span> <span class="n">image</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">_load_pilfont_data</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">file</span><span class="p">,</span> <span class="n">image</span><span class="p">):</span>
<span class="c1"># read PILfont header</span>
<span class="k">if</span> <span class="n">file</span><span class="o">.</span><span class="n">readline</span><span class="p">()</span> <span class="o">!=</span> <span class="sa">b</span><span class="s2">"PILfont</span><span class="se">\n</span><span class="s2">"</span><span class="p">:</span>
<span class="k">raise</span> <span class="ne">SyntaxError</span><span class="p">(</span><span class="s2">"Not a PILfont file"</span><span class="p">)</span>
<span class="n">file</span><span class="o">.</span><span class="n">readline</span><span class="p">()</span><span class="o">.</span><span class="n">split</span><span class="p">(</span><span class="sa">b</span><span class="s2">";"</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">info</span> <span class="o">=</span> <span class="p">[]</span> <span class="c1"># FIXME: should be a dictionary</span>
<span class="k">while</span> <span class="kc">True</span><span class="p">:</span>
<span class="n">s</span> <span class="o">=</span> <span class="n">file</span><span class="o">.</span><span class="n">readline</span><span class="p">()</span>
<span class="k">if</span> <span class="ow">not</span> <span class="n">s</span> <span class="ow">or</span> <span class="n">s</span> <span class="o">==</span> <span class="sa">b</span><span class="s2">"DATA</span><span class="se">\n</span><span class="s2">"</span><span class="p">:</span>
<span class="k">break</span>
<span class="bp">self</span><span class="o">.</span><span class="n">info</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">s</span><span class="p">)</span>
<span class="c1"># read PILfont metrics</span>
<span class="n">data</span> <span class="o">=</span> <span class="n">file</span><span class="o">.</span><span class="n">read</span><span class="p">(</span><span class="mi">256</span><span class="o">*</span><span class="mi">20</span><span class="p">)</span>
<span class="c1"># check image</span>
<span class="k">if</span> <span class="n">image</span><span class="o">.</span><span class="n">mode</span> <span class="ow">not</span> <span class="ow">in</span> <span class="p">(</span><span class="s2">"1"</span><span class="p">,</span> <span class="s2">"L"</span><span class="p">):</span>
<span class="k">raise</span> <span class="ne">TypeError</span><span class="p">(</span><span class="s2">"invalid font image mode"</span><span class="p">)</span>
<span class="n">image</span><span class="o">.</span><span class="n">load</span><span class="p">()</span>
<span class="bp">self</span><span class="o">.</span><span class="n">font</span> <span class="o">=</span> <span class="n">Image</span><span class="o">.</span><span class="n">core</span><span class="o">.</span><span class="n">font</span><span class="p">(</span><span class="n">image</span><span class="o">.</span><span class="n">im</span><span class="p">,</span> <span class="n">data</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">getsize</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">text</span><span class="p">,</span> <span class="o">*</span><span class="n">args</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">font</span><span class="o">.</span><span class="n">getsize</span><span class="p">(</span><span class="n">text</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">getmask</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">text</span><span class="p">,</span> <span class="n">mode</span><span class="o">=</span><span class="s2">""</span><span class="p">,</span> <span class="o">*</span><span class="n">args</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">font</span><span class="o">.</span><span class="n">getmask</span><span class="p">(</span><span class="n">text</span><span class="p">,</span> <span class="n">mode</span><span class="p">)</span>
<span class="c1">##</span>
<span class="c1"># Wrapper for FreeType fonts. Application code should use the</span>
<span class="c1"># <b>truetype</b> factory function to create font objects.</span>
<span class="k">class</span> <span class="nc">FreeTypeFont</span><span class="p">(</span><span class="nb">object</span><span class="p">):</span>
<span class="s2">"FreeType font wrapper (requires _imagingft service)"</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">font</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">size</span><span class="o">=</span><span class="mi">10</span><span class="p">,</span> <span class="n">index</span><span class="o">=</span><span class="mi">0</span><span class="p">,</span> <span class="n">encoding</span><span class="o">=</span><span class="s2">""</span><span class="p">,</span>
<span class="n">layout_engine</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
<span class="c1"># FIXME: use service provider instead</span>
<span class="bp">self</span><span class="o">.</span><span class="n">path</span> <span class="o">=</span> <span class="n">font</span>
<span class="bp">self</span><span class="o">.</span><span class="n">size</span> <span class="o">=</span> <span class="n">size</span>
<span class="bp">self</span><span class="o">.</span><span class="n">index</span> <span class="o">=</span> <span class="n">index</span>
<span class="bp">self</span><span class="o">.</span><span class="n">encoding</span> <span class="o">=</span> <span class="n">encoding</span>
<span class="k">if</span> <span class="n">layout_engine</span> <span class="ow">not</span> <span class="ow">in</span> <span class="p">(</span><span class="n">LAYOUT_BASIC</span><span class="p">,</span> <span class="n">LAYOUT_RAQM</span><span class="p">):</span>
<span class="n">layout_engine</span> <span class="o">=</span> <span class="n">LAYOUT_BASIC</span>
<span class="k">if</span> <span class="n">core</span><span class="o">.</span><span class="n">HAVE_RAQM</span><span class="p">:</span>
<span class="n">layout_engine</span> <span class="o">=</span> <span class="n">LAYOUT_RAQM</span>
<span class="k">if</span> <span class="n">layout_engine</span> <span class="o">==</span> <span class="n">LAYOUT_RAQM</span> <span class="ow">and</span> <span class="ow">not</span> <span class="n">core</span><span class="o">.</span><span class="n">HAVE_RAQM</span><span class="p">:</span>
<span class="n">layout_engine</span> <span class="o">=</span> <span class="n">LAYOUT_BASIC</span>
<span class="bp">self</span><span class="o">.</span><span class="n">layout_engine</span> <span class="o">=</span> <span class="n">layout_engine</span>
<span class="k">if</span> <span class="n">isPath</span><span class="p">(</span><span class="n">font</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">font</span> <span class="o">=</span> <span class="n">core</span><span class="o">.</span><span class="n">getfont</span><span class="p">(</span><span class="n">font</span><span class="p">,</span> <span class="n">size</span><span class="p">,</span> <span class="n">index</span><span class="p">,</span> <span class="n">encoding</span><span class="p">,</span>
<span class="n">layout_engine</span><span class="o">=</span><span class="n">layout_engine</span><span class="p">)</span>
<span class="k">else</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">font_bytes</span> <span class="o">=</span> <span class="n">font</span><span class="o">.</span><span class="n">read</span><span class="p">()</span>
<span class="bp">self</span><span class="o">.</span><span class="n">font</span> <span class="o">=</span> <span class="n">core</span><span class="o">.</span><span class="n">getfont</span><span class="p">(</span>
<span class="s2">""</span><span class="p">,</span> <span class="n">size</span><span class="p">,</span> <span class="n">index</span><span class="p">,</span> <span class="n">encoding</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">font_bytes</span><span class="p">,</span> <span class="n">layout_engine</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">_multiline_split</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">text</span><span class="p">):</span>
<span class="n">split_character</span> <span class="o">=</span> <span class="s2">"</span><span class="se">\n</span><span class="s2">"</span> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">text</span><span class="p">,</span> <span class="nb">str</span><span class="p">)</span> <span class="k">else</span> <span class="sa">b</span><span class="s2">"</span><span class="se">\n</span><span class="s2">"</span>
<span class="k">return</span> <span class="n">text</span><span class="o">.</span><span class="n">split</span><span class="p">(</span><span class="n">split_character</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">getname</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">font</span><span class="o">.</span><span class="n">family</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">font</span><span class="o">.</span><span class="n">style</span>
<span class="k">def</span> <span class="nf">getmetrics</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">font</span><span class="o">.</span><span class="n">ascent</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">font</span><span class="o">.</span><span class="n">descent</span>
<span class="k">def</span> <span class="nf">getsize</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">text</span><span class="p">,</span> <span class="n">direction</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">features</span><span class="o">=</span><span class="kc">None</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">font</span><span class="o">.</span><span class="n">getsize</span><span class="p">(</span><span class="n">text</span><span class="p">,</span> <span class="n">direction</span><span class="p">,</span> <span class="n">features</span><span class="p">)</span>
<span class="k">return</span> <span class="p">(</span><span class="n">size</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">+</span> <span class="n">offset</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="n">size</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span> <span class="o">+</span> <span class="n">offset</span><span class="p">[</span><span class="mi">1</span><span class="p">])</span>
<span class="k">def</span> <span class="nf">getsize_multiline</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">text</span><span class="p">,</span> <span class="n">direction</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span>
<span class="n">spacing</span><span class="o">=</span><span class="mi">4</span><span class="p">,</span> <span class="n">features</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
<span class="n">max_width</span> <span class="o">=</span> <span class="mi">0</span>
<span class="n">lines</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_multiline_split</span><span class="p">(</span><span class="n">text</span><span class="p">)</span>
<span class="n">line_spacing</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">getsize</span><span class="p">(</span><span class="s1">'A'</span><span class="p">)[</span><span class="mi">1</span><span class="p">]</span> <span class="o">+</span> <span class="n">spacing</span>
<span class="k">for</span> <span class="n">line</span> <span class="ow">in</span> <span class="n">lines</span><span class="p">:</span>
<span class="n">line_width</span><span class="p">,</span> <span class="n">line_height</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">getsize</span><span class="p">(</span><span class="n">line</span><span class="p">,</span> <span class="n">direction</span><span class="p">,</span> <span class="n">features</span><span class="p">)</span>
<span class="n">max_width</span> <span class="o">=</span> <span class="nb">max</span><span class="p">(</span><span class="n">max_width</span><span class="p">,</span> <span class="n">line_width</span><span class="p">)</span>
<span class="k">return</span> <span class="n">max_width</span><span class="p">,</span> <span class="nb">len</span><span class="p">(</span><span class="n">lines</span><span class="p">)</span><span class="o">*</span><span class="n">line_spacing</span> <span class="o">-</span> <span class="n">spacing</span>
<span class="k">def</span> <span class="nf">getoffset</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">text</span><span class="p">):</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">font</span><span class="o">.</span><span class="n">getsize</span><span class="p">(</span><span class="n">text</span><span class="p">)[</span><span class="mi">1</span><span class="p">]</span>
<span class="k">def</span> <span class="nf">getmask</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">text</span><span class="p">,</span> <span class="n">mode</span><span class="o">=</span><span class="s2">""</span><span class="p">,</span> <span class="n">direction</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">features</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">getmask2</span><span class="p">(</span><span class="n">text</span><span class="p">,</span> <span class="n">mode</span><span class="p">,</span> <span class="n">direction</span><span class="o">=</span><span class="n">direction</span><span class="p">,</span>
<span class="n">features</span><span class="o">=</span><span class="n">features</span><span class="p">)[</span><span class="mi">0</span><span class="p">]</span>
<span class="k">def</span> <span class="nf">getmask2</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">text</span><span class="p">,</span> <span class="n">mode</span><span class="o">=</span><span class="s2">""</span><span class="p">,</span> <span class="n">fill</span><span class="o">=</span><span class="n">Image</span><span class="o">.</span><span class="n">core</span><span class="o">.</span><span class="n">fill</span><span class="p">,</span> <span class="n">direction</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span>
<span class="n">features</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="o">*</span><span class="n">args</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</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">font</span><span class="o">.</span><span class="n">getsize</span><span class="p">(</span><span class="n">text</span><span class="p">,</span> <span class="n">direction</span><span class="p">,</span> <span class="n">features</span><span class="p">)</span>
<span class="n">im</span> <span class="o">=</span> <span class="n">fill</span><span class="p">(</span><span class="s2">"L"</span><span class="p">,</span> <span class="n">size</span><span class="p">,</span> <span class="mi">0</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">font</span><span class="o">.</span><span class="n">render</span><span class="p">(</span><span class="n">text</span><span class="p">,</span> <span class="n">im</span><span class="o">.</span><span class="n">id</span><span class="p">,</span> <span class="n">mode</span> <span class="o">==</span> <span class="s2">"1"</span><span class="p">,</span> <span class="n">direction</span><span class="p">,</span> <span class="n">features</span><span class="p">)</span>
<span class="k">return</span> <span class="n">im</span><span class="p">,</span> <span class="n">offset</span>
<span class="k">def</span> <span class="nf">font_variant</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">font</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">size</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">index</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">encoding</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span>
<span class="n">layout_engine</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Create a copy of this FreeTypeFont object,</span>
<span class="sd"> using any specified arguments to override the settings.</span>
<span class="sd"> Parameters are identical to the parameters used to initialize this</span>
<span class="sd"> object.</span>
<span class="sd"> :return: A FreeTypeFont object.</span>
<span class="sd"> """</span>
<span class="k">return</span> <span class="n">FreeTypeFont</span><span class="p">(</span>
<span class="n">font</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">path</span> <span class="k">if</span> <span class="n">font</span> <span class="ow">is</span> <span class="kc">None</span> <span class="k">else</span> <span class="n">font</span><span class="p">,</span>
<span class="n">size</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">size</span> <span class="k">if</span> <span class="n">size</span> <span class="ow">is</span> <span class="kc">None</span> <span class="k">else</span> <span class="n">size</span><span class="p">,</span>
<span class="n">index</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">index</span> <span class="k">if</span> <span class="n">index</span> <span class="ow">is</span> <span class="kc">None</span> <span class="k">else</span> <span class="n">index</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">encoding</span> <span class="k">if</span> <span class="n">encoding</span> <span class="ow">is</span> <span class="kc">None</span> <span class="k">else</span> <span class="n">encoding</span><span class="p">,</span>
<span class="n">layout_engine</span><span class="o">=</span><span class="n">layout_engine</span> <span class="ow">or</span> <span class="bp">self</span><span class="o">.</span><span class="n">layout_engine</span>
<span class="p">)</span>
<span class="k">class</span> <span class="nc">TransposedFont</span><span class="p">(</span><span class="nb">object</span><span class="p">):</span>
<span class="s2">"Wrapper for writing rotated or mirrored text"</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">font</span><span class="p">,</span> <span class="n">orientation</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Wrapper that creates a transposed font from any existing font</span>
<span class="sd"> object.</span>
<span class="sd"> :param font: A font object.</span>
<span class="sd"> :param orientation: An optional orientation. If given, this should</span>
<span class="sd"> be one of Image.FLIP_LEFT_RIGHT, Image.FLIP_TOP_BOTTOM,</span>
<span class="sd"> Image.ROTATE_90, Image.ROTATE_180, or Image.ROTATE_270.</span>
<span class="sd"> """</span>
<span class="bp">self</span><span class="o">.</span><span class="n">font</span> <span class="o">=</span> <span class="n">font</span>
<span class="bp">self</span><span class="o">.</span><span class="n">orientation</span> <span class="o">=</span> <span class="n">orientation</span> <span class="c1"># any 'transpose' argument, or None</span>
<span class="k">def</span> <span class="nf">getsize</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">text</span><span class="p">,</span> <span class="o">*</span><span class="n">args</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</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="bp">self</span><span class="o">.</span><span class="n">font</span><span class="o">.</span><span class="n">getsize</span><span class="p">(</span><span class="n">text</span><span class="p">)</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">orientation</span> <span class="ow">in</span> <span class="p">(</span><span class="n">Image</span><span class="o">.</span><span class="n">ROTATE_90</span><span class="p">,</span> <span class="n">Image</span><span class="o">.</span><span class="n">ROTATE_270</span><span class="p">):</span>
<span class="k">return</span> <span class="n">h</span><span class="p">,</span> <span class="n">w</span>
<span class="k">return</span> <span class="n">w</span><span class="p">,</span> <span class="n">h</span>
<span class="k">def</span> <span class="nf">getmask</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">text</span><span class="p">,</span> <span class="n">mode</span><span class="o">=</span><span class="s2">""</span><span class="p">,</span> <span class="o">*</span><span class="n">args</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span>
<span class="n">im</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">font</span><span class="o">.</span><span class="n">getmask</span><span class="p">(</span><span class="n">text</span><span class="p">,</span> <span class="n">mode</span><span class="p">,</span> <span class="o">*</span><span class="n">args</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">)</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">orientation</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">im</span><span class="o">.</span><span class="n">transpose</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">orientation</span><span class="p">)</span>
<span class="k">return</span> <span class="n">im</span>
<div class="viewcode-block" id="load"><a class="viewcode-back" href="../../reference/ImageFont.html#PIL.ImageFont.load">[docs]</a><span class="k">def</span> <span class="nf">load</span><span class="p">(</span><span class="n">filename</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Load a font file. This function loads a font object from the given</span>
<span class="sd"> bitmap font file, and returns the corresponding font object.</span>
<span class="sd"> :param filename: Name of font file.</span>
<span class="sd"> :return: A font object.</span>
<span class="sd"> :exception IOError: If the file could not be read.</span>
<span class="sd"> """</span>
<span class="n">f</span> <span class="o">=</span> <span class="n">ImageFont</span><span class="p">()</span>
<span class="n">f</span><span class="o">.</span><span class="n">_load_pilfont</span><span class="p">(</span><span class="n">filename</span><span class="p">)</span>
<span class="k">return</span> <span class="n">f</span></div>
<div class="viewcode-block" id="truetype"><a class="viewcode-back" href="../../reference/ImageFont.html#PIL.ImageFont.truetype">[docs]</a><span class="k">def</span> <span class="nf">truetype</span><span class="p">(</span><span class="n">font</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">size</span><span class="o">=</span><span class="mi">10</span><span class="p">,</span> <span class="n">index</span><span class="o">=</span><span class="mi">0</span><span class="p">,</span> <span class="n">encoding</span><span class="o">=</span><span class="s2">""</span><span class="p">,</span>
<span class="n">layout_engine</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Load a TrueType or OpenType font from a file or file-like object,</span>
<span class="sd"> and create a font object.</span>
<span class="sd"> This function loads a font object from the given file or file-like</span>
<span class="sd"> object, and creates a font object for a font of the given size.</span>
<span class="sd"> This function requires the _imagingft service.</span>
<span class="sd"> :param font: A filename or file-like object containing a TrueType font.</span>
<span class="sd"> Under Windows, if the file is not found in this filename,</span>
<span class="sd"> the loader also looks in Windows :file:`fonts/` directory.</span>
<span class="sd"> :param size: The requested size, in points.</span>
<span class="sd"> :param index: Which font face to load (default is first available face).</span>
<span class="sd"> :param encoding: Which font encoding to use (default is Unicode). Common</span>
<span class="sd"> encodings are "unic" (Unicode), "symb" (Microsoft</span>
<span class="sd"> Symbol), "ADOB" (Adobe Standard), "ADBE" (Adobe Expert),</span>
<span class="sd"> and "armn" (Apple Roman). See the FreeType documentation</span>
<span class="sd"> for more information.</span>
<span class="sd"> :param layout_engine: Which layout engine to use, if available:</span>
<span class="sd"> `ImageFont.LAYOUT_BASIC` or `ImageFont.LAYOUT_RAQM`.</span>
<span class="sd"> :return: A font object.</span>
<span class="sd"> :exception IOError: If the file could not be read.</span>
<span class="sd"> """</span>
<span class="k">try</span><span class="p">:</span>
<span class="k">return</span> <span class="n">FreeTypeFont</span><span class="p">(</span><span class="n">font</span><span class="p">,</span> <span class="n">size</span><span class="p">,</span> <span class="n">index</span><span class="p">,</span> <span class="n">encoding</span><span class="p">,</span> <span class="n">layout_engine</span><span class="p">)</span>
<span class="k">except</span> <span class="ne">IOError</span><span class="p">:</span>
<span class="n">ttf_filename</span> <span class="o">=</span> <span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">basename</span><span class="p">(</span><span class="n">font</span><span class="p">)</span>
<span class="n">dirs</span> <span class="o">=</span> <span class="p">[]</span>
<span class="k">if</span> <span class="n">sys</span><span class="o">.</span><span class="n">platform</span> <span class="o">==</span> <span class="s2">"win32"</span><span class="p">:</span>
<span class="c1"># check the windows font repository</span>
<span class="c1"># NOTE: must use uppercase WINDIR, to work around bugs in</span>
<span class="c1"># 1.5.2's os.environ.get()</span>
<span class="n">windir</span> <span class="o">=</span> <span class="n">os</span><span class="o">.</span><span class="n">environ</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"WINDIR"</span><span class="p">)</span>
<span class="k">if</span> <span class="n">windir</span><span class="p">:</span>
<span class="n">dirs</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">windir</span><span class="p">,</span> <span class="s2">"fonts"</span><span class="p">))</span>
<span class="k">elif</span> <span class="n">sys</span><span class="o">.</span><span class="n">platform</span> <span class="ow">in</span> <span class="p">(</span><span class="s1">'linux'</span><span class="p">,</span> <span class="s1">'linux2'</span><span class="p">):</span>
<span class="n">lindirs</span> <span class="o">=</span> <span class="n">os</span><span class="o">.</span><span class="n">environ</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"XDG_DATA_DIRS"</span><span class="p">,</span> <span class="s2">""</span><span class="p">)</span>
<span class="k">if</span> <span class="ow">not</span> <span class="n">lindirs</span><span class="p">:</span>
<span class="c1"># According to the freedesktop spec, XDG_DATA_DIRS should</span>
<span class="c1"># default to /usr/share</span>
<span class="n">lindirs</span> <span class="o">=</span> <span class="s1">'/usr/share'</span>
<span class="n">dirs</span> <span class="o">+=</span> <span class="p">[</span><span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">lindir</span><span class="p">,</span> <span class="s2">"fonts"</span><span class="p">)</span>
<span class="k">for</span> <span class="n">lindir</span> <span class="ow">in</span> <span class="n">lindirs</span><span class="o">.</span><span class="n">split</span><span class="p">(</span><span class="s2">":"</span><span class="p">)]</span>
<span class="k">elif</span> <span class="n">sys</span><span class="o">.</span><span class="n">platform</span> <span class="o">==</span> <span class="s1">'darwin'</span><span class="p">:</span>
<span class="n">dirs</span> <span class="o">+=</span> <span class="p">[</span><span class="s1">'/Library/Fonts'</span><span class="p">,</span> <span class="s1">'/System/Library/Fonts'</span><span class="p">,</span>
<span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">expanduser</span><span class="p">(</span><span class="s1">'~/Library/Fonts'</span><span class="p">)]</span>
<span class="n">ext</span> <span class="o">=</span> <span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">splitext</span><span class="p">(</span><span class="n">ttf_filename</span><span class="p">)[</span><span class="mi">1</span><span class="p">]</span>
<span class="n">first_font_with_a_different_extension</span> <span class="o">=</span> <span class="kc">None</span>
<span class="k">for</span> <span class="n">directory</span> <span class="ow">in</span> <span class="n">dirs</span><span class="p">:</span>
<span class="k">for</span> <span class="n">walkroot</span><span class="p">,</span> <span class="n">walkdir</span><span class="p">,</span> <span class="n">walkfilenames</span> <span class="ow">in</span> <span class="n">os</span><span class="o">.</span><span class="n">walk</span><span class="p">(</span><span class="n">directory</span><span class="p">):</span>
<span class="k">for</span> <span class="n">walkfilename</span> <span class="ow">in</span> <span class="n">walkfilenames</span><span class="p">:</span>
<span class="k">if</span> <span class="n">ext</span> <span class="ow">and</span> <span class="n">walkfilename</span> <span class="o">==</span> <span class="n">ttf_filename</span><span class="p">:</span>
<span class="n">fontpath</span> <span class="o">=</span> <span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">walkroot</span><span class="p">,</span> <span class="n">walkfilename</span><span class="p">)</span>
<span class="k">return</span> <span class="n">FreeTypeFont</span><span class="p">(</span><span class="n">fontpath</span><span class="p">,</span> <span class="n">size</span><span class="p">,</span> <span class="n">index</span><span class="p">,</span>
<span class="n">encoding</span><span class="p">,</span> <span class="n">layout_engine</span><span class="p">)</span>
<span class="k">elif</span> <span class="p">(</span><span class="ow">not</span> <span class="n">ext</span> <span class="ow">and</span>
<span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">splitext</span><span class="p">(</span><span class="n">walkfilename</span><span class="p">)[</span><span class="mi">0</span><span class="p">]</span> <span class="o">==</span> <span class="n">ttf_filename</span><span class="p">):</span>
<span class="n">fontpath</span> <span class="o">=</span> <span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">walkroot</span><span class="p">,</span> <span class="n">walkfilename</span><span class="p">)</span>
<span class="k">if</span> <span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">splitext</span><span class="p">(</span><span class="n">fontpath</span><span class="p">)[</span><span class="mi">1</span><span class="p">]</span> <span class="o">==</span> <span class="s1">'.ttf'</span><span class="p">:</span>
<span class="k">return</span> <span class="n">FreeTypeFont</span><span class="p">(</span><span class="n">fontpath</span><span class="p">,</span> <span class="n">size</span><span class="p">,</span> <span class="n">index</span><span class="p">,</span>
<span class="n">encoding</span><span class="p">,</span> <span class="n">layout_engine</span><span class="p">)</span>
<span class="k">if</span> <span class="ow">not</span> <span class="n">ext</span> \
<span class="ow">and</span> <span class="n">first_font_with_a_different_extension</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
<span class="n">first_font_with_a_different_extension</span> <span class="o">=</span> <span class="n">fontpath</span>
<span class="k">if</span> <span class="n">first_font_with_a_different_extension</span><span class="p">:</span>
<span class="k">return</span> <span class="n">FreeTypeFont</span><span class="p">(</span><span class="n">first_font_with_a_different_extension</span><span class="p">,</span> <span class="n">size</span><span class="p">,</span>
<span class="n">index</span><span class="p">,</span> <span class="n">encoding</span><span class="p">,</span> <span class="n">layout_engine</span><span class="p">)</span>
<span class="k">raise</span></div>
<div class="viewcode-block" id="load_path"><a class="viewcode-back" href="../../reference/ImageFont.html#PIL.ImageFont.load_path">[docs]</a><span class="k">def</span> <span class="nf">load_path</span><span class="p">(</span><span class="n">filename</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Load font file. Same as :py:func:`~PIL.ImageFont.load`, but searches for a</span>
<span class="sd"> bitmap font along the Python path.</span>
<span class="sd"> :param filename: Name of font file.</span>
<span class="sd"> :return: A font object.</span>
<span class="sd"> :exception IOError: If the file could not be read.</span>
<span class="sd"> """</span>
<span class="k">for</span> <span class="n">directory</span> <span class="ow">in</span> <span class="n">sys</span><span class="o">.</span><span class="n">path</span><span class="p">:</span>
<span class="k">if</span> <span class="n">isDirectory</span><span class="p">(</span><span class="n">directory</span><span class="p">):</span>
<span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">filename</span><span class="p">,</span> <span class="nb">str</span><span class="p">):</span>
<span class="k">if</span> <span class="n">py3</span><span class="p">:</span>
<span class="n">filename</span> <span class="o">=</span> <span class="n">filename</span><span class="o">.</span><span class="n">decode</span><span class="p">(</span><span class="s2">"utf-8"</span><span class="p">)</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">filename</span> <span class="o">=</span> <span class="n">filename</span><span class="o">.</span><span class="n">encode</span><span class="p">(</span><span class="s2">"utf-8"</span><span class="p">)</span>
<span class="k">try</span><span class="p">:</span>
<span class="k">return</span> <span class="n">load</span><span class="p">(</span><span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">directory</span><span class="p">,</span> <span class="n">filename</span><span class="p">))</span>
<span class="k">except</span> <span class="ne">IOError</span><span class="p">:</span>
<span class="k">pass</span>
<span class="k">raise</span> <span class="ne">IOError</span><span class="p">(</span><span class="s2">"cannot find font file"</span><span class="p">)</span></div>
<div class="viewcode-block" id="load_default"><a class="viewcode-back" href="../../reference/ImageFont.html#PIL.ImageFont.load_default">[docs]</a><span class="k">def</span> <span class="nf">load_default</span><span class="p">():</span>
<span class="sd">"""Load a "better than nothing" default font.</span>
<span class="sd"> .. versionadded:: 1.1.4</span>
<span class="sd"> :return: A font object.</span>
<span class="sd"> """</span>
<span class="kn">from</span> <span class="nn">io</span> <span class="k">import</span> <span class="n">BytesIO</span>
<span class="kn">import</span> <span class="nn">base64</span>
<span class="n">f</span> <span class="o">=</span> <span class="n">ImageFont</span><span class="p">()</span>
<span class="n">f</span><span class="o">.</span><span class="n">_load_pilfont_data</span><span class="p">(</span>
<span class="c1"># courB08</span>
<span class="n">BytesIO</span><span class="p">(</span><span class="n">base64</span><span class="o">.</span><span class="n">b64decode</span><span class="p">(</span><span class="sa">b</span><span class="s1">'''</span>
<span class="s1">UElMZm9udAo7Ozs7OzsxMDsKREFUQQoAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA</span>
<span class="s1">AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA</span>
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<span class="s1">BgAAAAD/+gAFAAABIwAAASgABgAGAAAAAf/5AAQAAQEoAAABKwAIAAYAAAAA//kABAABASsAAAEv</span>
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<span class="s1">AUYAAAFMAAcABgAAAAD/+wAFAAABTAAAAVEABQAGAAAAAP/5AAYAAAFRAAABVwAHAAYAAAAA//sA</span>
<span class="s1">BQAAAVcAAAFcAAUABgAAAAD/+QAFAAABXAAAAWEABwAGAAAAAP/7AAYAAgFhAAABZwAHAAYAAP//</span>
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<span class="s1">AAG6AAABwAAFAAYAAP////sABgAAAcAAAAHHAAUABgAAAAD/+wAGAAABxwAAAc0ABQAGAAD////7</span>
<span class="s1">AAYAAgHNAAAB1AAHAAYAAAAA//sABQAAAdQAAAHZAAUABgAAAAH/+QAFAAEB2QAAAd0ACAAGAAAA</span>
<span class="s1">Av/6AAMAAQHdAAAB3gAHAAYAAAAA//kABAABAd4AAAHiAAgABgAAAAD/+wAF//0B4gAAAecAAgAA</span>
<span class="s1">AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA</span>
<span class="s1">AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA</span>
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<span class="s1">AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA</span>
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<span class="s1">AAYAAAAA//kABQABAgAAAAIFAAgABgAAAAH/+gAE//sCBQAAAggAAQAGAAAAAP/5AAYAAAIIAAAC</span>
<span class="s1">DgAHAAYAAAAB//kABf/+Ag4AAAISAAUABgAA////+wAGAAACEgAAAhkABQAGAAAAAP/7AAX//gIZ</span>
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<span class="s1">pQAKAKwAEgAGAAD////4AAYAAACsAAoAswASAAYAAP////gABgAAALMACgC6ABIABgAA////+QAG</span>
<span class="s1">AAAAugAKAMEAEQAGAAD////4AAYAAgDBAAoAyAAUAAYAAP////kABQACAMgACgDOABMABgAA////</span>
<span class="s1">+QAGAAIAzgAKANUAEw==</span>
<span class="s1">'''</span><span class="p">)),</span> <span class="n">Image</span><span class="o">.</span><span class="n">open</span><span class="p">(</span><span class="n">BytesIO</span><span class="p">(</span><span class="n">base64</span><span class="o">.</span><span class="n">b64decode</span><span class="p">(</span><span class="sa">b</span><span class="s1">'''</span>
<span class="s1">iVBORw0KGgoAAAANSUhEUgAAAx4AAAAUAQAAAAArMtZoAAAEwElEQVR4nABlAJr/AHVE4czCI/4u</span>
<span class="s1">Mc4b7vuds/xzjz5/3/7u/n9vMe7vnfH/9++vPn/xyf5zhxzjt8GHw8+2d83u8x27199/nxuQ6Od9</span>
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<span class="s1">/yLFBrIBAAAA//9i1HhcwdhizX7u8NZNzyLbvT97bfrMf/QHI8evOwcSqGUJAAAA//9iYBB81iSw</span>
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<span class="s1">oJodAAAAAP//Yqo/83+dxePWlxl3npsel9lvLfPcqlE9725C+acfVLMEAAAA//9i+s9gwCoaaGMR</span>
<span class="s1">evta/58PTEWzr21hufPjA8N+qlnBwAAAAAD//2JiWLci5v1+HmFXDqcnULE/MxgYGBj+f6CaJQAA</span>
<span class="s1">AAD//2Ji2FrkY3iYpYC5qDeGgeEMAwPDvwQBBoYvcTwOVLMEAAAA//9isDBgkP///0EOg9z35v//</span>
<span class="s1">Gc/eeW7BwPj5+QGZhANUswMAAAD//2JgqGBgYGBgqEMXlvhMPUsAAAAA//8iYDd1AAAAAP//AwDR</span>
<span class="s1">w7IkEbzhVQAAAABJRU5ErkJggg==</span>
<span class="s1">'''</span><span class="p">))))</span>
<span class="k">return</span> <span class="n">f</span></div>
</pre></div>
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