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<h1>Source code for PIL.IcnsImagePlugin</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"># macOS icns file decoder, based on icns.py by Bob Ippolito.</span>
<span class="c1">#</span>
<span class="c1"># history:</span>
<span class="c1"># 2004-10-09 fl Turned into a PIL plugin; removed 2.3 dependencies.</span>
<span class="c1">#</span>
<span class="c1"># Copyright (c) 2004 by Bob Ippolito.</span>
<span class="c1"># Copyright (c) 2004 by Secret Labs.</span>
<span class="c1"># Copyright (c) 2004 by Fredrik Lundh.</span>
<span class="c1"># Copyright (c) 2014 by Alastair Houghton.</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">PIL</span> <span class="k">import</span> <span class="n">Image</span><span class="p">,</span> <span class="n">ImageFile</span><span class="p">,</span> <span class="n">PngImagePlugin</span>
<span class="kn">from</span> <span class="nn">PIL._binary</span> <span class="k">import</span> <span class="n">i8</span>
<span class="kn">import</span> <span class="nn">io</span>
<span class="kn">import</span> <span class="nn">os</span>
<span class="kn">import</span> <span class="nn">shutil</span>
<span class="kn">import</span> <span class="nn">struct</span>
<span class="kn">import</span> <span class="nn">sys</span>
<span class="kn">import</span> <span class="nn">tempfile</span>
<span class="n">enable_jpeg2k</span> <span class="o">=</span> <span class="nb">hasattr</span><span class="p">(</span><span class="n">Image</span><span class="o">.</span><span class="n">core</span><span class="p">,</span> <span class="s1">'jp2klib_version'</span><span class="p">)</span>
<span class="k">if</span> <span class="n">enable_jpeg2k</span><span class="p">:</span>
<span class="kn">from</span> <span class="nn">PIL</span> <span class="k">import</span> <span class="n">Jpeg2KImagePlugin</span>
<span class="n">HEADERSIZE</span> <span class="o">=</span> <span class="mi">8</span>
<div class="viewcode-block" id="nextheader"><a class="viewcode-back" href="../../reference/plugins.html#PIL.IcnsImagePlugin.nextheader">[docs]</a><span class="k">def</span> <span class="nf">nextheader</span><span class="p">(</span><span class="n">fobj</span><span class="p">):</span>
<span class="k">return</span> <span class="n">struct</span><span class="o">.</span><span class="n">unpack</span><span class="p">(</span><span class="s1">'>4sI'</span><span class="p">,</span> <span class="n">fobj</span><span class="o">.</span><span class="n">read</span><span class="p">(</span><span class="n">HEADERSIZE</span><span class="p">))</span></div>
<div class="viewcode-block" id="read_32t"><a class="viewcode-back" href="../../reference/plugins.html#PIL.IcnsImagePlugin.read_32t">[docs]</a><span class="k">def</span> <span class="nf">read_32t</span><span class="p">(</span><span class="n">fobj</span><span class="p">,</span> <span class="n">start_length</span><span class="p">,</span> <span class="n">size</span><span class="p">):</span>
<span class="c1"># The 128x128 icon seems to have an extra header for some reason.</span>
<span class="p">(</span><span class="n">start</span><span class="p">,</span> <span class="n">length</span><span class="p">)</span> <span class="o">=</span> <span class="n">start_length</span>
<span class="n">fobj</span><span class="o">.</span><span class="n">seek</span><span class="p">(</span><span class="n">start</span><span class="p">)</span>
<span class="n">sig</span> <span class="o">=</span> <span class="n">fobj</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">sig</span> <span class="o">!=</span> <span class="sa">b</span><span class="s1">'</span><span class="se">\x00\x00\x00\x00</span><span class="s1">'</span><span class="p">:</span>
<span class="k">raise</span> <span class="ne">SyntaxError</span><span class="p">(</span><span class="s1">'Unknown signature, expecting 0x00000000'</span><span class="p">)</span>
<span class="k">return</span> <span class="n">read_32</span><span class="p">(</span><span class="n">fobj</span><span class="p">,</span> <span class="p">(</span><span class="n">start</span> <span class="o">+</span> <span class="mi">4</span><span class="p">,</span> <span class="n">length</span> <span class="o">-</span> <span class="mi">4</span><span class="p">),</span> <span class="n">size</span><span class="p">)</span></div>
<div class="viewcode-block" id="read_32"><a class="viewcode-back" href="../../reference/plugins.html#PIL.IcnsImagePlugin.read_32">[docs]</a><span class="k">def</span> <span class="nf">read_32</span><span class="p">(</span><span class="n">fobj</span><span class="p">,</span> <span class="n">start_length</span><span class="p">,</span> <span class="n">size</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Read a 32bit RGB icon resource. Seems to be either uncompressed or</span>
<span class="sd"> an RLE packbits-like scheme.</span>
<span class="sd"> """</span>
<span class="p">(</span><span class="n">start</span><span class="p">,</span> <span class="n">length</span><span class="p">)</span> <span class="o">=</span> <span class="n">start_length</span>
<span class="n">fobj</span><span class="o">.</span><span class="n">seek</span><span class="p">(</span><span class="n">start</span><span class="p">)</span>
<span class="n">pixel_size</span> <span class="o">=</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">size</span><span class="p">[</span><span class="mi">2</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">size</span><span class="p">[</span><span class="mi">2</span><span class="p">])</span>
<span class="n">sizesq</span> <span class="o">=</span> <span class="n">pixel_size</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">*</span> <span class="n">pixel_size</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span>
<span class="k">if</span> <span class="n">length</span> <span class="o">==</span> <span class="n">sizesq</span> <span class="o">*</span> <span class="mi">3</span><span class="p">:</span>
<span class="c1"># uncompressed ("RGBRGBGB")</span>
<span class="n">indata</span> <span class="o">=</span> <span class="n">fobj</span><span class="o">.</span><span class="n">read</span><span class="p">(</span><span class="n">length</span><span class="p">)</span>
<span class="n">im</span> <span class="o">=</span> <span class="n">Image</span><span class="o">.</span><span class="n">frombuffer</span><span class="p">(</span><span class="s2">"RGB"</span><span class="p">,</span> <span class="n">pixel_size</span><span class="p">,</span> <span class="n">indata</span><span class="p">,</span> <span class="s2">"raw"</span><span class="p">,</span> <span class="s2">"RGB"</span><span class="p">,</span> <span class="mi">0</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="c1"># decode image</span>
<span class="n">im</span> <span class="o">=</span> <span class="n">Image</span><span class="o">.</span><span class="n">new</span><span class="p">(</span><span class="s2">"RGB"</span><span class="p">,</span> <span class="n">pixel_size</span><span class="p">,</span> <span class="kc">None</span><span class="p">)</span>
<span class="k">for</span> <span class="n">band_ix</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="mi">3</span><span class="p">):</span>
<span class="n">data</span> <span class="o">=</span> <span class="p">[]</span>
<span class="n">bytesleft</span> <span class="o">=</span> <span class="n">sizesq</span>
<span class="k">while</span> <span class="n">bytesleft</span> <span class="o">></span> <span class="mi">0</span><span class="p">:</span>
<span class="n">byte</span> <span class="o">=</span> <span class="n">fobj</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="k">if</span> <span class="ow">not</span> <span class="n">byte</span><span class="p">:</span>
<span class="k">break</span>
<span class="n">byte</span> <span class="o">=</span> <span class="n">i8</span><span class="p">(</span><span class="n">byte</span><span class="p">)</span>
<span class="k">if</span> <span class="n">byte</span> <span class="o">&</span> <span class="mh">0x80</span><span class="p">:</span>
<span class="n">blocksize</span> <span class="o">=</span> <span class="n">byte</span> <span class="o">-</span> <span class="mi">125</span>
<span class="n">byte</span> <span class="o">=</span> <span class="n">fobj</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="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">blocksize</span><span class="p">):</span>
<span class="n">data</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">byte</span><span class="p">)</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">blocksize</span> <span class="o">=</span> <span class="n">byte</span> <span class="o">+</span> <span class="mi">1</span>
<span class="n">data</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">fobj</span><span class="o">.</span><span class="n">read</span><span class="p">(</span><span class="n">blocksize</span><span class="p">))</span>
<span class="n">bytesleft</span> <span class="o">-=</span> <span class="n">blocksize</span>
<span class="k">if</span> <span class="n">bytesleft</span> <span class="o"><=</span> <span class="mi">0</span><span class="p">:</span>
<span class="k">break</span>
<span class="k">if</span> <span class="n">bytesleft</span> <span class="o">!=</span> <span class="mi">0</span><span class="p">:</span>
<span class="k">raise</span> <span class="ne">SyntaxError</span><span class="p">(</span>
<span class="s2">"Error reading channel [</span><span class="si">%r</span><span class="s2"> left]"</span> <span class="o">%</span> <span class="n">bytesleft</span>
<span class="p">)</span>
<span class="n">band</span> <span class="o">=</span> <span class="n">Image</span><span class="o">.</span><span class="n">frombuffer</span><span class="p">(</span>
<span class="s2">"L"</span><span class="p">,</span> <span class="n">pixel_size</span><span class="p">,</span> <span class="sa">b</span><span class="s2">""</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">data</span><span class="p">),</span> <span class="s2">"raw"</span><span class="p">,</span> <span class="s2">"L"</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="mi">1</span>
<span class="p">)</span>
<span class="n">im</span><span class="o">.</span><span class="n">im</span><span class="o">.</span><span class="n">putband</span><span class="p">(</span><span class="n">band</span><span class="o">.</span><span class="n">im</span><span class="p">,</span> <span class="n">band_ix</span><span class="p">)</span>
<span class="k">return</span> <span class="p">{</span><span class="s2">"RGB"</span><span class="p">:</span> <span class="n">im</span><span class="p">}</span></div>
<div class="viewcode-block" id="read_mk"><a class="viewcode-back" href="../../reference/plugins.html#PIL.IcnsImagePlugin.read_mk">[docs]</a><span class="k">def</span> <span class="nf">read_mk</span><span class="p">(</span><span class="n">fobj</span><span class="p">,</span> <span class="n">start_length</span><span class="p">,</span> <span class="n">size</span><span class="p">):</span>
<span class="c1"># Alpha masks seem to be uncompressed</span>
<span class="n">start</span> <span class="o">=</span> <span class="n">start_length</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
<span class="n">fobj</span><span class="o">.</span><span class="n">seek</span><span class="p">(</span><span class="n">start</span><span class="p">)</span>
<span class="n">pixel_size</span> <span class="o">=</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">size</span><span class="p">[</span><span class="mi">2</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">size</span><span class="p">[</span><span class="mi">2</span><span class="p">])</span>
<span class="n">sizesq</span> <span class="o">=</span> <span class="n">pixel_size</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">*</span> <span class="n">pixel_size</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span>
<span class="n">band</span> <span class="o">=</span> <span class="n">Image</span><span class="o">.</span><span class="n">frombuffer</span><span class="p">(</span>
<span class="s2">"L"</span><span class="p">,</span> <span class="n">pixel_size</span><span class="p">,</span> <span class="n">fobj</span><span class="o">.</span><span class="n">read</span><span class="p">(</span><span class="n">sizesq</span><span class="p">),</span> <span class="s2">"raw"</span><span class="p">,</span> <span class="s2">"L"</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="mi">1</span>
<span class="p">)</span>
<span class="k">return</span> <span class="p">{</span><span class="s2">"A"</span><span class="p">:</span> <span class="n">band</span><span class="p">}</span></div>
<div class="viewcode-block" id="read_png_or_jpeg2000"><a class="viewcode-back" href="../../reference/plugins.html#PIL.IcnsImagePlugin.read_png_or_jpeg2000">[docs]</a><span class="k">def</span> <span class="nf">read_png_or_jpeg2000</span><span class="p">(</span><span class="n">fobj</span><span class="p">,</span> <span class="n">start_length</span><span class="p">,</span> <span class="n">size</span><span class="p">):</span>
<span class="p">(</span><span class="n">start</span><span class="p">,</span> <span class="n">length</span><span class="p">)</span> <span class="o">=</span> <span class="n">start_length</span>
<span class="n">fobj</span><span class="o">.</span><span class="n">seek</span><span class="p">(</span><span class="n">start</span><span class="p">)</span>
<span class="n">sig</span> <span class="o">=</span> <span class="n">fobj</span><span class="o">.</span><span class="n">read</span><span class="p">(</span><span class="mi">12</span><span class="p">)</span>
<span class="k">if</span> <span class="n">sig</span><span class="p">[:</span><span class="mi">8</span><span class="p">]</span> <span class="o">==</span> <span class="sa">b</span><span class="s1">'</span><span class="se">\x89</span><span class="s1">PNG</span><span class="se">\x0d\x0a\x1a\x0a</span><span class="s1">'</span><span class="p">:</span>
<span class="n">fobj</span><span class="o">.</span><span class="n">seek</span><span class="p">(</span><span class="n">start</span><span class="p">)</span>
<span class="n">im</span> <span class="o">=</span> <span class="n">PngImagePlugin</span><span class="o">.</span><span class="n">PngImageFile</span><span class="p">(</span><span class="n">fobj</span><span class="p">)</span>
<span class="k">return</span> <span class="p">{</span><span class="s2">"RGBA"</span><span class="p">:</span> <span class="n">im</span><span class="p">}</span>
<span class="k">elif</span> <span class="n">sig</span><span class="p">[:</span><span class="mi">4</span><span class="p">]</span> <span class="o">==</span> <span class="sa">b</span><span class="s1">'</span><span class="se">\xff\x4f\xff\x51</span><span class="s1">'</span> \
<span class="ow">or</span> <span class="n">sig</span><span class="p">[:</span><span class="mi">4</span><span class="p">]</span> <span class="o">==</span> <span class="sa">b</span><span class="s1">'</span><span class="se">\x0d\x0a\x87\x0a</span><span class="s1">'</span> \
<span class="ow">or</span> <span class="n">sig</span> <span class="o">==</span> <span class="sa">b</span><span class="s1">'</span><span class="se">\x00\x00\x00\x0c</span><span class="s1">jP </span><span class="se">\x0d\x0a\x87\x0a</span><span class="s1">'</span><span class="p">:</span>
<span class="k">if</span> <span class="ow">not</span> <span class="n">enable_jpeg2k</span><span class="p">:</span>
<span class="k">raise</span> <span class="ne">ValueError</span><span class="p">(</span><span class="s1">'Unsupported icon subimage format (rebuild PIL '</span>
<span class="s1">'with JPEG 2000 support to fix this)'</span><span class="p">)</span>
<span class="c1"># j2k, jpc or j2c</span>
<span class="n">fobj</span><span class="o">.</span><span class="n">seek</span><span class="p">(</span><span class="n">start</span><span class="p">)</span>
<span class="n">jp2kstream</span> <span class="o">=</span> <span class="n">fobj</span><span class="o">.</span><span class="n">read</span><span class="p">(</span><span class="n">length</span><span class="p">)</span>
<span class="n">f</span> <span class="o">=</span> <span class="n">io</span><span class="o">.</span><span class="n">BytesIO</span><span class="p">(</span><span class="n">jp2kstream</span><span class="p">)</span>
<span class="n">im</span> <span class="o">=</span> <span class="n">Jpeg2KImagePlugin</span><span class="o">.</span><span class="n">Jpeg2KImageFile</span><span class="p">(</span><span class="n">f</span><span class="p">)</span>
<span class="k">if</span> <span class="n">im</span><span class="o">.</span><span class="n">mode</span> <span class="o">!=</span> <span class="s1">'RGBA'</span><span class="p">:</span>
<span class="n">im</span> <span class="o">=</span> <span class="n">im</span><span class="o">.</span><span class="n">convert</span><span class="p">(</span><span class="s1">'RGBA'</span><span class="p">)</span>
<span class="k">return</span> <span class="p">{</span><span class="s2">"RGBA"</span><span class="p">:</span> <span class="n">im</span><span class="p">}</span>
<span class="k">else</span><span class="p">:</span>
<span class="k">raise</span> <span class="ne">ValueError</span><span class="p">(</span><span class="s1">'Unsupported icon subimage format'</span><span class="p">)</span></div>
<div class="viewcode-block" id="IcnsFile"><a class="viewcode-back" href="../../reference/plugins.html#PIL.IcnsImagePlugin.IcnsFile">[docs]</a><span class="k">class</span> <span class="nc">IcnsFile</span><span class="p">(</span><span class="nb">object</span><span class="p">):</span>
<span class="n">SIZES</span> <span class="o">=</span> <span class="p">{</span>
<span class="p">(</span><span class="mi">512</span><span class="p">,</span> <span class="mi">512</span><span class="p">,</span> <span class="mi">2</span><span class="p">):</span> <span class="p">[</span>
<span class="p">(</span><span class="sa">b</span><span class="s1">'ic10'</span><span class="p">,</span> <span class="n">read_png_or_jpeg2000</span><span class="p">),</span>
<span class="p">],</span>
<span class="p">(</span><span class="mi">512</span><span class="p">,</span> <span class="mi">512</span><span class="p">,</span> <span class="mi">1</span><span class="p">):</span> <span class="p">[</span>
<span class="p">(</span><span class="sa">b</span><span class="s1">'ic09'</span><span class="p">,</span> <span class="n">read_png_or_jpeg2000</span><span class="p">),</span>
<span class="p">],</span>
<span class="p">(</span><span class="mi">256</span><span class="p">,</span> <span class="mi">256</span><span class="p">,</span> <span class="mi">2</span><span class="p">):</span> <span class="p">[</span>
<span class="p">(</span><span class="sa">b</span><span class="s1">'ic14'</span><span class="p">,</span> <span class="n">read_png_or_jpeg2000</span><span class="p">),</span>
<span class="p">],</span>
<span class="p">(</span><span class="mi">256</span><span class="p">,</span> <span class="mi">256</span><span class="p">,</span> <span class="mi">1</span><span class="p">):</span> <span class="p">[</span>
<span class="p">(</span><span class="sa">b</span><span class="s1">'ic08'</span><span class="p">,</span> <span class="n">read_png_or_jpeg2000</span><span class="p">),</span>
<span class="p">],</span>
<span class="p">(</span><span class="mi">128</span><span class="p">,</span> <span class="mi">128</span><span class="p">,</span> <span class="mi">2</span><span class="p">):</span> <span class="p">[</span>
<span class="p">(</span><span class="sa">b</span><span class="s1">'ic13'</span><span class="p">,</span> <span class="n">read_png_or_jpeg2000</span><span class="p">),</span>
<span class="p">],</span>
<span class="p">(</span><span class="mi">128</span><span class="p">,</span> <span class="mi">128</span><span class="p">,</span> <span class="mi">1</span><span class="p">):</span> <span class="p">[</span>
<span class="p">(</span><span class="sa">b</span><span class="s1">'ic07'</span><span class="p">,</span> <span class="n">read_png_or_jpeg2000</span><span class="p">),</span>
<span class="p">(</span><span class="sa">b</span><span class="s1">'it32'</span><span class="p">,</span> <span class="n">read_32t</span><span class="p">),</span>
<span class="p">(</span><span class="sa">b</span><span class="s1">'t8mk'</span><span class="p">,</span> <span class="n">read_mk</span><span class="p">),</span>
<span class="p">],</span>
<span class="p">(</span><span class="mi">64</span><span class="p">,</span> <span class="mi">64</span><span class="p">,</span> <span class="mi">1</span><span class="p">):</span> <span class="p">[</span>
<span class="p">(</span><span class="sa">b</span><span class="s1">'icp6'</span><span class="p">,</span> <span class="n">read_png_or_jpeg2000</span><span class="p">),</span>
<span class="p">],</span>
<span class="p">(</span><span class="mi">32</span><span class="p">,</span> <span class="mi">32</span><span class="p">,</span> <span class="mi">2</span><span class="p">):</span> <span class="p">[</span>
<span class="p">(</span><span class="sa">b</span><span class="s1">'ic12'</span><span class="p">,</span> <span class="n">read_png_or_jpeg2000</span><span class="p">),</span>
<span class="p">],</span>
<span class="p">(</span><span class="mi">48</span><span class="p">,</span> <span class="mi">48</span><span class="p">,</span> <span class="mi">1</span><span class="p">):</span> <span class="p">[</span>
<span class="p">(</span><span class="sa">b</span><span class="s1">'ih32'</span><span class="p">,</span> <span class="n">read_32</span><span class="p">),</span>
<span class="p">(</span><span class="sa">b</span><span class="s1">'h8mk'</span><span class="p">,</span> <span class="n">read_mk</span><span class="p">),</span>
<span class="p">],</span>
<span class="p">(</span><span class="mi">32</span><span class="p">,</span> <span class="mi">32</span><span class="p">,</span> <span class="mi">1</span><span class="p">):</span> <span class="p">[</span>
<span class="p">(</span><span class="sa">b</span><span class="s1">'icp5'</span><span class="p">,</span> <span class="n">read_png_or_jpeg2000</span><span class="p">),</span>
<span class="p">(</span><span class="sa">b</span><span class="s1">'il32'</span><span class="p">,</span> <span class="n">read_32</span><span class="p">),</span>
<span class="p">(</span><span class="sa">b</span><span class="s1">'l8mk'</span><span class="p">,</span> <span class="n">read_mk</span><span class="p">),</span>
<span class="p">],</span>
<span class="p">(</span><span class="mi">16</span><span class="p">,</span> <span class="mi">16</span><span class="p">,</span> <span class="mi">2</span><span class="p">):</span> <span class="p">[</span>
<span class="p">(</span><span class="sa">b</span><span class="s1">'ic11'</span><span class="p">,</span> <span class="n">read_png_or_jpeg2000</span><span class="p">),</span>
<span class="p">],</span>
<span class="p">(</span><span class="mi">16</span><span class="p">,</span> <span class="mi">16</span><span class="p">,</span> <span class="mi">1</span><span class="p">):</span> <span class="p">[</span>
<span class="p">(</span><span class="sa">b</span><span class="s1">'icp4'</span><span class="p">,</span> <span class="n">read_png_or_jpeg2000</span><span class="p">),</span>
<span class="p">(</span><span class="sa">b</span><span class="s1">'is32'</span><span class="p">,</span> <span class="n">read_32</span><span class="p">),</span>
<span class="p">(</span><span class="sa">b</span><span class="s1">'s8mk'</span><span class="p">,</span> <span class="n">read_mk</span><span class="p">),</span>
<span class="p">],</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">fobj</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> fobj is a file-like object as an icns resource</span>
<span class="sd"> """</span>
<span class="c1"># signature : (start, length)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">dct</span> <span class="o">=</span> <span class="n">dct</span> <span class="o">=</span> <span class="p">{}</span>
<span class="bp">self</span><span class="o">.</span><span class="n">fobj</span> <span class="o">=</span> <span class="n">fobj</span>
<span class="n">sig</span><span class="p">,</span> <span class="n">filesize</span> <span class="o">=</span> <span class="n">nextheader</span><span class="p">(</span><span class="n">fobj</span><span class="p">)</span>
<span class="k">if</span> <span class="n">sig</span> <span class="o">!=</span> <span class="sa">b</span><span class="s1">'icns'</span><span class="p">:</span>
<span class="k">raise</span> <span class="ne">SyntaxError</span><span class="p">(</span><span class="s1">'not an icns file'</span><span class="p">)</span>
<span class="n">i</span> <span class="o">=</span> <span class="n">HEADERSIZE</span>
<span class="k">while</span> <span class="n">i</span> <span class="o"><</span> <span class="n">filesize</span><span class="p">:</span>
<span class="n">sig</span><span class="p">,</span> <span class="n">blocksize</span> <span class="o">=</span> <span class="n">nextheader</span><span class="p">(</span><span class="n">fobj</span><span class="p">)</span>
<span class="k">if</span> <span class="n">blocksize</span> <span class="o"><=</span> <span class="mi">0</span><span class="p">:</span>
<span class="k">raise</span> <span class="ne">SyntaxError</span><span class="p">(</span><span class="s1">'invalid block header'</span><span class="p">)</span>
<span class="n">i</span> <span class="o">+=</span> <span class="n">HEADERSIZE</span>
<span class="n">blocksize</span> <span class="o">-=</span> <span class="n">HEADERSIZE</span>
<span class="n">dct</span><span class="p">[</span><span class="n">sig</span><span class="p">]</span> <span class="o">=</span> <span class="p">(</span><span class="n">i</span><span class="p">,</span> <span class="n">blocksize</span><span class="p">)</span>
<span class="n">fobj</span><span class="o">.</span><span class="n">seek</span><span class="p">(</span><span class="n">blocksize</span><span class="p">,</span> <span class="mi">1</span><span class="p">)</span>
<span class="n">i</span> <span class="o">+=</span> <span class="n">blocksize</span>
<div class="viewcode-block" id="IcnsFile.itersizes"><a class="viewcode-back" href="../../reference/plugins.html#PIL.IcnsImagePlugin.IcnsFile.itersizes">[docs]</a> <span class="k">def</span> <span class="nf">itersizes</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="n">sizes</span> <span class="o">=</span> <span class="p">[]</span>
<span class="k">for</span> <span class="n">size</span><span class="p">,</span> <span class="n">fmts</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">SIZES</span><span class="o">.</span><span class="n">items</span><span class="p">():</span>
<span class="k">for</span> <span class="p">(</span><span class="n">fmt</span><span class="p">,</span> <span class="n">reader</span><span class="p">)</span> <span class="ow">in</span> <span class="n">fmts</span><span class="p">:</span>
<span class="k">if</span> <span class="n">fmt</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">dct</span><span class="p">:</span>
<span class="n">sizes</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">size</span><span class="p">)</span>
<span class="k">break</span>
<span class="k">return</span> <span class="n">sizes</span></div>
<div class="viewcode-block" id="IcnsFile.bestsize"><a class="viewcode-back" href="../../reference/plugins.html#PIL.IcnsImagePlugin.IcnsFile.bestsize">[docs]</a> <span class="k">def</span> <span class="nf">bestsize</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="n">sizes</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">itersizes</span><span class="p">()</span>
<span class="k">if</span> <span class="ow">not</span> <span class="n">sizes</span><span class="p">:</span>
<span class="k">raise</span> <span class="ne">SyntaxError</span><span class="p">(</span><span class="s2">"No 32bit icon resources found"</span><span class="p">)</span>
<span class="k">return</span> <span class="nb">max</span><span class="p">(</span><span class="n">sizes</span><span class="p">)</span></div>
<div class="viewcode-block" id="IcnsFile.dataforsize"><a class="viewcode-back" href="../../reference/plugins.html#PIL.IcnsImagePlugin.IcnsFile.dataforsize">[docs]</a> <span class="k">def</span> <span class="nf">dataforsize</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">size</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Get an icon resource as {channel: array}. Note that</span>
<span class="sd"> the arrays are bottom-up like windows bitmaps and will likely</span>
<span class="sd"> need to be flipped or transposed in some way.</span>
<span class="sd"> """</span>
<span class="n">dct</span> <span class="o">=</span> <span class="p">{}</span>
<span class="k">for</span> <span class="n">code</span><span class="p">,</span> <span class="n">reader</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">SIZES</span><span class="p">[</span><span class="n">size</span><span class="p">]:</span>
<span class="n">desc</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">dct</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">code</span><span class="p">)</span>
<span class="k">if</span> <span class="n">desc</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
<span class="n">dct</span><span class="o">.</span><span class="n">update</span><span class="p">(</span><span class="n">reader</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">fobj</span><span class="p">,</span> <span class="n">desc</span><span class="p">,</span> <span class="n">size</span><span class="p">))</span>
<span class="k">return</span> <span class="n">dct</span></div>
<div class="viewcode-block" id="IcnsFile.getimage"><a class="viewcode-back" href="../../reference/plugins.html#PIL.IcnsImagePlugin.IcnsFile.getimage">[docs]</a> <span class="k">def</span> <span class="nf">getimage</span><span class="p">(</span><span class="bp">self</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="k">if</span> <span class="n">size</span> <span class="ow">is</span> <span class="kc">None</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">bestsize</span><span class="p">()</span>
<span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">size</span><span class="p">)</span> <span class="o">==</span> <span class="mi">2</span><span class="p">:</span>
<span class="n">size</span> <span class="o">=</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="n">size</span><span class="p">[</span><span class="mi">1</span><span class="p">],</span> <span class="mi">1</span><span class="p">)</span>
<span class="n">channels</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">dataforsize</span><span class="p">(</span><span class="n">size</span><span class="p">)</span>
<span class="n">im</span> <span class="o">=</span> <span class="n">channels</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">'RGBA'</span><span class="p">,</span> <span class="kc">None</span><span class="p">)</span>
<span class="k">if</span> <span class="n">im</span><span class="p">:</span>
<span class="k">return</span> <span class="n">im</span>
<span class="n">im</span> <span class="o">=</span> <span class="n">channels</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"RGB"</span><span class="p">)</span><span class="o">.</span><span class="n">copy</span><span class="p">()</span>
<span class="k">try</span><span class="p">:</span>
<span class="n">im</span><span class="o">.</span><span class="n">putalpha</span><span class="p">(</span><span class="n">channels</span><span class="p">[</span><span class="s2">"A"</span><span class="p">])</span>
<span class="k">except</span> <span class="ne">KeyError</span><span class="p">:</span>
<span class="k">pass</span>
<span class="k">return</span> <span class="n">im</span></div></div>
<span class="c1">##</span>
<span class="c1"># Image plugin for Mac OS icons.</span>
<div class="viewcode-block" id="IcnsImageFile"><a class="viewcode-back" href="../../reference/plugins.html#PIL.IcnsImagePlugin.IcnsImageFile">[docs]</a><span class="k">class</span> <span class="nc">IcnsImageFile</span><span class="p">(</span><span class="n">ImageFile</span><span class="o">.</span><span class="n">ImageFile</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> PIL image support for Mac OS .icns files.</span>
<span class="sd"> Chooses the best resolution, but will possibly load</span>
<span class="sd"> a different size image if you mutate the size attribute</span>
<span class="sd"> before calling 'load'.</span>
<span class="sd"> The info dictionary has a key 'sizes' that is a list</span>
<span class="sd"> of sizes that the icns file has.</span>
<span class="sd"> """</span>
<span class="nb">format</span> <span class="o">=</span> <span class="s2">"ICNS"</span>
<span class="n">format_description</span> <span class="o">=</span> <span class="s2">"Mac OS icns resource"</span>
<span class="k">def</span> <span class="nf">_open</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">icns</span> <span class="o">=</span> <span class="n">IcnsFile</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">fp</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">mode</span> <span class="o">=</span> <span class="s1">'RGBA'</span>
<span class="bp">self</span><span class="o">.</span><span class="n">info</span><span class="p">[</span><span class="s1">'sizes'</span><span class="p">]</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">icns</span><span class="o">.</span><span class="n">itersizes</span><span class="p">()</span>
<span class="bp">self</span><span class="o">.</span><span class="n">best_size</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">icns</span><span class="o">.</span><span class="n">bestsize</span><span class="p">()</span>
<span class="bp">self</span><span class="o">.</span><span class="n">size</span> <span class="o">=</span> <span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">best_size</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">*</span> <span class="bp">self</span><span class="o">.</span><span class="n">best_size</span><span class="p">[</span><span class="mi">2</span><span class="p">],</span>
<span class="bp">self</span><span class="o">.</span><span class="n">best_size</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span> <span class="o">*</span> <span class="bp">self</span><span class="o">.</span><span class="n">best_size</span><span class="p">[</span><span class="mi">2</span><span class="p">])</span>
<span class="c1"># Just use this to see if it's loaded or not yet.</span>
<span class="bp">self</span><span class="o">.</span><span class="n">tile</span> <span class="o">=</span> <span class="p">(</span><span class="s1">''</span><span class="p">,)</span>
<span class="nd">@property</span>
<span class="k">def</span> <span class="nf">size</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">_size</span>
<span class="nd">@size</span><span class="o">.</span><span class="n">setter</span>
<span class="k">def</span> <span class="nf">size</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">value</span><span class="p">):</span>
<span class="n">info_size</span> <span class="o">=</span> <span class="n">value</span>
<span class="k">if</span> <span class="n">info_size</span> <span class="ow">not</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">info</span><span class="p">[</span><span class="s1">'sizes'</span><span class="p">]</span> <span class="ow">and</span> <span class="nb">len</span><span class="p">(</span><span class="n">info_size</span><span class="p">)</span> <span class="o">==</span> <span class="mi">2</span><span class="p">:</span>
<span class="n">info_size</span> <span class="o">=</span> <span class="p">(</span><span class="n">info_size</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="n">info_size</span><span class="p">[</span><span class="mi">1</span><span class="p">],</span> <span class="mi">1</span><span class="p">)</span>
<span class="k">if</span> <span class="n">info_size</span> <span class="ow">not</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">info</span><span class="p">[</span><span class="s1">'sizes'</span><span class="p">]</span> <span class="ow">and</span> <span class="nb">len</span><span class="p">(</span><span class="n">info_size</span><span class="p">)</span> <span class="o">==</span> <span class="mi">3</span> <span class="ow">and</span> \
<span class="n">info_size</span><span class="p">[</span><span class="mi">2</span><span class="p">]</span> <span class="o">==</span> <span class="mi">1</span><span class="p">:</span>
<span class="n">simple_sizes</span> <span class="o">=</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">size</span><span class="p">[</span><span class="mi">2</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">size</span><span class="p">[</span><span class="mi">2</span><span class="p">])</span>
<span class="k">for</span> <span class="n">size</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">info</span><span class="p">[</span><span class="s1">'sizes'</span><span class="p">]]</span>
<span class="k">if</span> <span class="n">value</span> <span class="ow">in</span> <span class="n">simple_sizes</span><span class="p">:</span>
<span class="n">info_size</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">info</span><span class="p">[</span><span class="s1">'sizes'</span><span class="p">][</span><span class="n">simple_sizes</span><span class="o">.</span><span class="n">index</span><span class="p">(</span><span class="n">value</span><span class="p">)]</span>
<span class="k">if</span> <span class="n">info_size</span> <span class="ow">not</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">info</span><span class="p">[</span><span class="s1">'sizes'</span><span class="p">]:</span>
<span class="k">raise</span> <span class="ne">ValueError</span><span class="p">(</span>
<span class="s2">"This is not one of the allowed sizes of this image"</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_size</span> <span class="o">=</span> <span class="n">value</span>
<div class="viewcode-block" id="IcnsImageFile.load"><a class="viewcode-back" href="../../reference/plugins.html#PIL.IcnsImagePlugin.IcnsImageFile.load">[docs]</a> <span class="k">def</span> <span class="nf">load</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">size</span><span class="p">)</span> <span class="o">==</span> <span class="mi">3</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">best_size</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">size</span>
<span class="bp">self</span><span class="o">.</span><span class="n">size</span> <span class="o">=</span> <span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">best_size</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">*</span> <span class="bp">self</span><span class="o">.</span><span class="n">best_size</span><span class="p">[</span><span class="mi">2</span><span class="p">],</span>
<span class="bp">self</span><span class="o">.</span><span class="n">best_size</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span> <span class="o">*</span> <span class="bp">self</span><span class="o">.</span><span class="n">best_size</span><span class="p">[</span><span class="mi">2</span><span class="p">])</span>
<span class="n">Image</span><span class="o">.</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="p">)</span>
<span class="k">if</span> <span class="ow">not</span> <span class="bp">self</span><span class="o">.</span><span class="n">tile</span><span class="p">:</span>
<span class="k">return</span>
<span class="bp">self</span><span class="o">.</span><span class="n">load_prepare</span><span class="p">()</span>
<span class="c1"># This is likely NOT the best way to do it, but whatever.</span>
<span class="n">im</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">icns</span><span class="o">.</span><span class="n">getimage</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">best_size</span><span class="p">)</span>
<span class="c1"># If this is a PNG or JPEG 2000, it won't be loaded yet</span>
<span class="n">im</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">im</span> <span class="o">=</span> <span class="n">im</span><span class="o">.</span><span class="n">im</span>
<span class="bp">self</span><span class="o">.</span><span class="n">mode</span> <span class="o">=</span> <span class="n">im</span><span class="o">.</span><span class="n">mode</span>
<span class="bp">self</span><span class="o">.</span><span class="n">size</span> <span class="o">=</span> <span class="n">im</span><span class="o">.</span><span class="n">size</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">_exclusive_fp</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">close</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="kc">None</span>
<span class="bp">self</span><span class="o">.</span><span class="n">icns</span> <span class="o">=</span> <span class="kc">None</span>
<span class="bp">self</span><span class="o">.</span><span class="n">tile</span> <span class="o">=</span> <span class="p">()</span>
<span class="bp">self</span><span class="o">.</span><span class="n">load_end</span><span class="p">()</span></div></div>
<span class="k">def</span> <span class="nf">_save</span><span class="p">(</span><span class="n">im</span><span class="p">,</span> <span class="n">fp</span><span class="p">,</span> <span class="n">filename</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Saves the image as a series of PNG files,</span>
<span class="sd"> that are then converted to a .icns file</span>
<span class="sd"> using the macOS command line utility 'iconutil'.</span>
<span class="sd"> macOS only.</span>
<span class="sd"> """</span>
<span class="k">if</span> <span class="nb">hasattr</span><span class="p">(</span><span class="n">fp</span><span class="p">,</span> <span class="s2">"flush"</span><span class="p">):</span>
<span class="n">fp</span><span class="o">.</span><span class="n">flush</span><span class="p">()</span>
<span class="c1"># create the temporary set of pngs</span>
<span class="n">iconset</span> <span class="o">=</span> <span class="n">tempfile</span><span class="o">.</span><span class="n">mkdtemp</span><span class="p">(</span><span class="s1">'.iconset'</span><span class="p">)</span>
<span class="n">provided_images</span> <span class="o">=</span> <span class="p">{</span><span class="n">im</span><span class="o">.</span><span class="n">width</span><span class="p">:</span> <span class="n">im</span>
<span class="k">for</span> <span class="n">im</span> <span class="ow">in</span> <span class="n">im</span><span class="o">.</span><span class="n">encoderinfo</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">"append_images"</span><span class="p">,</span> <span class="p">[])}</span>
<span class="n">last_w</span> <span class="o">=</span> <span class="kc">None</span>
<span class="n">second_path</span> <span class="o">=</span> <span class="kc">None</span>
<span class="k">for</span> <span class="n">w</span> <span class="ow">in</span> <span class="p">[</span><span class="mi">16</span><span class="p">,</span> <span class="mi">32</span><span class="p">,</span> <span class="mi">128</span><span class="p">,</span> <span class="mi">256</span><span class="p">,</span> <span class="mi">512</span><span class="p">]:</span>
<span class="n">prefix</span> <span class="o">=</span> <span class="s1">'icon_</span><span class="si">{}</span><span class="s1">x</span><span class="si">{}</span><span class="s1">'</span><span class="o">.</span><span class="n">format</span><span class="p">(</span><span class="n">w</span><span class="p">,</span> <span class="n">w</span><span class="p">)</span>
<span class="n">first_path</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">iconset</span><span class="p">,</span> <span class="n">prefix</span><span class="o">+</span><span class="s1">'.png'</span><span class="p">)</span>
<span class="k">if</span> <span class="n">last_w</span> <span class="o">==</span> <span class="n">w</span><span class="p">:</span>
<span class="n">shutil</span><span class="o">.</span><span class="n">copyfile</span><span class="p">(</span><span class="n">second_path</span><span class="p">,</span> <span class="n">first_path</span><span class="p">)</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">im_w</span> <span class="o">=</span> <span class="n">provided_images</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">w</span><span class="p">,</span> <span class="n">im</span><span class="o">.</span><span class="n">resize</span><span class="p">((</span><span class="n">w</span><span class="p">,</span> <span class="n">w</span><span class="p">),</span> <span class="n">Image</span><span class="o">.</span><span class="n">LANCZOS</span><span class="p">))</span>
<span class="n">im_w</span><span class="o">.</span><span class="n">save</span><span class="p">(</span><span class="n">first_path</span><span class="p">)</span>
<span class="n">second_path</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">iconset</span><span class="p">,</span> <span class="n">prefix</span><span class="o">+</span><span class="s1">'@2x.png'</span><span class="p">)</span>
<span class="n">im_w2</span> <span class="o">=</span> <span class="n">provided_images</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">w</span><span class="o">*</span><span class="mi">2</span><span class="p">,</span> <span class="n">im</span><span class="o">.</span><span class="n">resize</span><span class="p">((</span><span class="n">w</span><span class="o">*</span><span class="mi">2</span><span class="p">,</span> <span class="n">w</span><span class="o">*</span><span class="mi">2</span><span class="p">),</span> <span class="n">Image</span><span class="o">.</span><span class="n">LANCZOS</span><span class="p">))</span>
<span class="n">im_w2</span><span class="o">.</span><span class="n">save</span><span class="p">(</span><span class="n">second_path</span><span class="p">)</span>
<span class="n">last_w</span> <span class="o">=</span> <span class="n">w</span><span class="o">*</span><span class="mi">2</span>
<span class="c1"># iconutil -c icns -o {} {}</span>
<span class="kn">from</span> <span class="nn">subprocess</span> <span class="k">import</span> <span class="n">Popen</span><span class="p">,</span> <span class="n">PIPE</span><span class="p">,</span> <span class="n">CalledProcessError</span>
<span class="n">convert_cmd</span> <span class="o">=</span> <span class="p">[</span><span class="s2">"iconutil"</span><span class="p">,</span> <span class="s2">"-c"</span><span class="p">,</span> <span class="s2">"icns"</span><span class="p">,</span> <span class="s2">"-o"</span><span class="p">,</span> <span class="n">filename</span><span class="p">,</span> <span class="n">iconset</span><span class="p">]</span>
<span class="k">with</span> <span class="nb">open</span><span class="p">(</span><span class="n">os</span><span class="o">.</span><span class="n">devnull</span><span class="p">,</span> <span class="s1">'wb'</span><span class="p">)</span> <span class="k">as</span> <span class="n">devnull</span><span class="p">:</span>
<span class="n">convert_proc</span> <span class="o">=</span> <span class="n">Popen</span><span class="p">(</span><span class="n">convert_cmd</span><span class="p">,</span> <span class="n">stdout</span><span class="o">=</span><span class="n">PIPE</span><span class="p">,</span> <span class="n">stderr</span><span class="o">=</span><span class="n">devnull</span><span class="p">)</span>
<span class="n">convert_proc</span><span class="o">.</span><span class="n">stdout</span><span class="o">.</span><span class="n">close</span><span class="p">()</span>
<span class="n">retcode</span> <span class="o">=</span> <span class="n">convert_proc</span><span class="o">.</span><span class="n">wait</span><span class="p">()</span>
<span class="c1"># remove the temporary files</span>
<span class="n">shutil</span><span class="o">.</span><span class="n">rmtree</span><span class="p">(</span><span class="n">iconset</span><span class="p">)</span>
<span class="k">if</span> <span class="n">retcode</span><span class="p">:</span>
<span class="k">raise</span> <span class="n">CalledProcessError</span><span class="p">(</span><span class="n">retcode</span><span class="p">,</span> <span class="n">convert_cmd</span><span class="p">)</span>
<span class="n">Image</span><span class="o">.</span><span class="n">register_open</span><span class="p">(</span><span class="n">IcnsImageFile</span><span class="o">.</span><span class="n">format</span><span class="p">,</span> <span class="n">IcnsImageFile</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="mi">4</span><span class="p">]</span> <span class="o">==</span> <span class="sa">b</span><span class="s1">'icns'</span><span class="p">)</span>
<span class="n">Image</span><span class="o">.</span><span class="n">register_extension</span><span class="p">(</span><span class="n">IcnsImageFile</span><span class="o">.</span><span class="n">format</span><span class="p">,</span> <span class="s1">'.icns'</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="s1">'darwin'</span><span class="p">:</span>
<span class="n">Image</span><span class="o">.</span><span class="n">register_save</span><span class="p">(</span><span class="n">IcnsImageFile</span><span class="o">.</span><span class="n">format</span><span class="p">,</span> <span class="n">_save</span><span class="p">)</span>
<span class="n">Image</span><span class="o">.</span><span class="n">register_mime</span><span class="p">(</span><span class="n">IcnsImageFile</span><span class="o">.</span><span class="n">format</span><span class="p">,</span> <span class="s2">"image/icns"</span><span class="p">)</span>
<span class="k">if</span> <span class="vm">__name__</span> <span class="o">==</span> <span class="s1">'__main__'</span><span class="p">:</span>
<span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">sys</span><span class="o">.</span><span class="n">argv</span><span class="p">)</span> <span class="o"><</span> <span class="mi">2</span><span class="p">:</span>
<span class="nb">print</span><span class="p">(</span><span class="s2">"Syntax: python IcnsImagePlugin.py [file]"</span><span class="p">)</span>
<span class="n">sys</span><span class="o">.</span><span class="n">exit</span><span class="p">()</span>
<span class="n">imf</span> <span class="o">=</span> <span class="n">IcnsImageFile</span><span class="p">(</span><span class="nb">open</span><span class="p">(</span><span class="n">sys</span><span class="o">.</span><span class="n">argv</span><span class="p">[</span><span class="mi">1</span><span class="p">],</span> <span class="s1">'rb'</span><span class="p">))</span>
<span class="k">for</span> <span class="n">size</span> <span class="ow">in</span> <span class="n">imf</span><span class="o">.</span><span class="n">info</span><span class="p">[</span><span class="s1">'sizes'</span><span class="p">]:</span>
<span class="n">imf</span><span class="o">.</span><span class="n">size</span> <span class="o">=</span> <span class="n">size</span>
<span class="n">imf</span><span class="o">.</span><span class="n">load</span><span class="p">()</span>
<span class="n">im</span> <span class="o">=</span> <span class="n">imf</span><span class="o">.</span><span class="n">im</span>
<span class="n">im</span><span class="o">.</span><span class="n">save</span><span class="p">(</span><span class="s1">'out-</span><span class="si">%s</span><span class="s1">-</span><span class="si">%s</span><span class="s1">-</span><span class="si">%s</span><span class="s1">.png'</span> <span class="o">%</span> <span class="n">size</span><span class="p">)</span>
<span class="n">im</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">sys</span><span class="o">.</span><span class="n">argv</span><span class="p">[</span><span class="mi">1</span><span class="p">])</span>
<span class="n">im</span><span class="o">.</span><span class="n">save</span><span class="p">(</span><span class="s2">"out.png"</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="s1">'windows'</span><span class="p">:</span>
<span class="n">os</span><span class="o">.</span><span class="n">startfile</span><span class="p">(</span><span class="s2">"out.png"</span><span class="p">)</span>
</pre></div>
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