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<h1>Source code for PIL.XbmImagePlugin</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"># XBM File handling</span>
<span class="c1">#</span>
<span class="c1"># History:</span>
<span class="c1"># 1995-09-08 fl Created</span>
<span class="c1"># 1996-11-01 fl Added save support</span>
<span class="c1"># 1997-07-07 fl Made header parser more tolerant</span>
<span class="c1"># 1997-07-22 fl Fixed yet another parser bug</span>
<span class="c1"># 2001-02-17 fl Use 're' instead of 'regex' (Python 2.1) (0.4)</span>
<span class="c1"># 2001-05-13 fl Added hotspot handling (based on code from Bernhard Herzog)</span>
<span class="c1"># 2004-02-24 fl Allow some whitespace before first #define</span>
<span class="c1">#</span>
<span class="c1"># Copyright (c) 1997-2004 by Secret Labs AB</span>
<span class="c1"># Copyright (c) 1996-1997 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">import</span> <span class="nn">re</span>
<span class="kn">from</span> <span class="nn">.</span> <span class="k">import</span> <span class="n">Image</span><span class="p">,</span> <span class="n">ImageFile</span>
<span class="n">__version__</span> <span class="o">=</span> <span class="s2">"0.6"</span>
<span class="c1"># XBM header</span>
<span class="n">xbm_head</span> <span class="o">=</span> <span class="n">re</span><span class="o">.</span><span class="n">compile</span><span class="p">(</span>
<span class="sa">br</span><span class="s2">"\s*#define[ \t]+.*_width[ \t]+(?P<width>[0-9]+)[\r\n]+"</span>
<span class="sa">b</span><span class="s2">"#define[ </span><span class="se">\t</span><span class="s2">]+.*_height[ </span><span class="se">\t</span><span class="s2">]+(?P<height>[0-9]+)[</span><span class="se">\r\n</span><span class="s2">]+"</span>
<span class="sa">b</span><span class="s2">"(?P<hotspot>"</span>
<span class="sa">b</span><span class="s2">"#define[ </span><span class="se">\t</span><span class="s2">]+[^_]*_x_hot[ </span><span class="se">\t</span><span class="s2">]+(?P<xhot>[0-9]+)[</span><span class="se">\r\n</span><span class="s2">]+"</span>
<span class="sa">b</span><span class="s2">"#define[ </span><span class="se">\t</span><span class="s2">]+[^_]*_y_hot[ </span><span class="se">\t</span><span class="s2">]+(?P<yhot>[0-9]+)[</span><span class="se">\r\n</span><span class="s2">]+"</span>
<span class="sa">b</span><span class="s2">")?"</span>
<span class="sa">b</span><span class="s2">"[</span><span class="se">\\</span><span class="s2">000-</span><span class="se">\\</span><span class="s2">377]*_bits</span><span class="se">\\</span><span class="s2">[</span><span class="se">\\</span><span class="s2">]"</span>
<span class="p">)</span>
<span class="k">def</span> <span class="nf">_accept</span><span class="p">(</span><span class="n">prefix</span><span class="p">):</span>
<span class="k">return</span> <span class="n">prefix</span><span class="o">.</span><span class="n">lstrip</span><span class="p">()[:</span><span class="mi">7</span><span class="p">]</span> <span class="o">==</span> <span class="sa">b</span><span class="s2">"#define"</span>
<span class="c1">##</span>
<span class="c1"># Image plugin for X11 bitmaps.</span>
<div class="viewcode-block" id="XbmImageFile"><a class="viewcode-back" href="../../reference/plugins.html#PIL.XbmImagePlugin.XbmImageFile">[docs]</a><span class="k">class</span> <span class="nc">XbmImageFile</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="nb">format</span> <span class="o">=</span> <span class="s2">"XBM"</span>
<span class="n">format_description</span> <span class="o">=</span> <span class="s2">"X11 Bitmap"</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="n">m</span> <span class="o">=</span> <span class="n">xbm_head</span><span class="o">.</span><span class="n">match</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">read</span><span class="p">(</span><span class="mi">512</span><span class="p">))</span>
<span class="k">if</span> <span class="n">m</span><span class="p">:</span>
<span class="n">xsize</span> <span class="o">=</span> <span class="nb">int</span><span class="p">(</span><span class="n">m</span><span class="o">.</span><span class="n">group</span><span class="p">(</span><span class="s2">"width"</span><span class="p">))</span>
<span class="n">ysize</span> <span class="o">=</span> <span class="nb">int</span><span class="p">(</span><span class="n">m</span><span class="o">.</span><span class="n">group</span><span class="p">(</span><span class="s2">"height"</span><span class="p">))</span>
<span class="k">if</span> <span class="n">m</span><span class="o">.</span><span class="n">group</span><span class="p">(</span><span class="s2">"hotspot"</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">info</span><span class="p">[</span><span class="s2">"hotspot"</span><span class="p">]</span> <span class="o">=</span> <span class="p">(</span>
<span class="nb">int</span><span class="p">(</span><span class="n">m</span><span class="o">.</span><span class="n">group</span><span class="p">(</span><span class="s2">"xhot"</span><span class="p">)),</span> <span class="nb">int</span><span class="p">(</span><span class="n">m</span><span class="o">.</span><span class="n">group</span><span class="p">(</span><span class="s2">"yhot"</span><span class="p">))</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="s2">"1"</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_size</span> <span class="o">=</span> <span class="n">xsize</span><span class="p">,</span> <span class="n">ysize</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="s2">"xbm"</span><span class="p">,</span> <span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="mi">0</span><span class="p">)</span><span class="o">+</span><span class="bp">self</span><span class="o">.</span><span class="n">size</span><span class="p">,</span> <span class="n">m</span><span class="o">.</span><span class="n">end</span><span class="p">(),</span> <span class="kc">None</span><span class="p">)]</span></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="k">if</span> <span class="n">im</span><span class="o">.</span><span class="n">mode</span> <span class="o">!=</span> <span class="s2">"1"</span><span class="p">:</span>
<span class="k">raise</span> <span class="ne">IOError</span><span class="p">(</span><span class="s2">"cannot write mode </span><span class="si">%s</span><span class="s2"> as XBM"</span> <span class="o">%</span> <span class="n">im</span><span class="o">.</span><span class="n">mode</span><span class="p">)</span>
<span class="n">fp</span><span class="o">.</span><span class="n">write</span><span class="p">((</span><span class="s2">"#define im_width </span><span class="si">%d</span><span class="se">\n</span><span class="s2">"</span> <span class="o">%</span> <span class="n">im</span><span class="o">.</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">encode</span><span class="p">(</span><span class="s1">'ascii'</span><span class="p">))</span>
<span class="n">fp</span><span class="o">.</span><span class="n">write</span><span class="p">((</span><span class="s2">"#define im_height </span><span class="si">%d</span><span class="se">\n</span><span class="s2">"</span> <span class="o">%</span> <span class="n">im</span><span class="o">.</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">encode</span><span class="p">(</span><span class="s1">'ascii'</span><span class="p">))</span>
<span class="n">hotspot</span> <span class="o">=</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">"hotspot"</span><span class="p">)</span>
<span class="k">if</span> <span class="n">hotspot</span><span class="p">:</span>
<span class="n">fp</span><span class="o">.</span><span class="n">write</span><span class="p">((</span><span class="s2">"#define im_x_hot </span><span class="si">%d</span><span class="se">\n</span><span class="s2">"</span> <span class="o">%</span> <span class="n">hotspot</span><span class="p">[</span><span class="mi">0</span><span class="p">])</span><span class="o">.</span><span class="n">encode</span><span class="p">(</span><span class="s1">'ascii'</span><span class="p">))</span>
<span class="n">fp</span><span class="o">.</span><span class="n">write</span><span class="p">((</span><span class="s2">"#define im_y_hot </span><span class="si">%d</span><span class="se">\n</span><span class="s2">"</span> <span class="o">%</span> <span class="n">hotspot</span><span class="p">[</span><span class="mi">1</span><span class="p">])</span><span class="o">.</span><span class="n">encode</span><span class="p">(</span><span class="s1">'ascii'</span><span class="p">))</span>
<span class="n">fp</span><span class="o">.</span><span class="n">write</span><span class="p">(</span><span class="sa">b</span><span class="s2">"static char im_bits[] = {</span><span class="se">\n</span><span class="s2">"</span><span class="p">)</span>
<span class="n">ImageFile</span><span class="o">.</span><span class="n">_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="p">[(</span><span class="s2">"xbm"</span><span class="p">,</span> <span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="mi">0</span><span class="p">)</span><span class="o">+</span><span class="n">im</span><span class="o">.</span><span class="n">size</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="kc">None</span><span class="p">)])</span>
<span class="n">fp</span><span class="o">.</span><span class="n">write</span><span class="p">(</span><span class="sa">b</span><span class="s2">"};</span><span class="se">\n</span><span class="s2">"</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">XbmImageFile</span><span class="o">.</span><span class="n">format</span><span class="p">,</span> <span class="n">XbmImageFile</span><span class="p">,</span> <span class="n">_accept</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">XbmImageFile</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_extension</span><span class="p">(</span><span class="n">XbmImageFile</span><span class="o">.</span><span class="n">format</span><span class="p">,</span> <span class="s2">".xbm"</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">XbmImageFile</span><span class="o">.</span><span class="n">format</span><span class="p">,</span> <span class="s2">"image/xbm"</span><span class="p">)</span>
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