<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>widgets example code: menu.py — Matplotlib v1.1.1 documentation</title> <link rel="stylesheet" href="../../_static/mpl.css" type="text/css" /> <link rel="stylesheet" href="../../_static/pygments.css" type="text/css" /> <script type="text/javascript"> var DOCUMENTATION_OPTIONS = { URL_ROOT: '../../', VERSION: '1.1.1', COLLAPSE_INDEX: false, FILE_SUFFIX: '.html', HAS_SOURCE: true }; </script> <script type="text/javascript" src="../../_static/jquery.js"></script> <script type="text/javascript" src="../../_static/underscore.js"></script> <script type="text/javascript" src="../../_static/doctools.js"></script> <link rel="search" type="application/opensearchdescription+xml" title="Search within Matplotlib v1.1.1 documentation" href="../../_static/opensearch.xml"/> <link rel="top" title="Matplotlib v1.1.1 documentation" href="../../index.html" /> </head> <body> <!-- Piwik --> <script type="text/javascript"> if ("matplotlib.sourceforge.net" == document.location.hostname || "matplotlib.sf.net" == document.location.hostname) { var pkBaseURL = (("https:" == document.location.protocol) ? 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<h3>Navigation</h3> <ul> <li class="right" style="margin-right: 10px"> <a href="../../genindex.html" title="General Index" accesskey="I">index</a></li> <li class="right" > <a href="../../py-modindex.html" title="Python Module Index" >modules</a> |</li> <li><a href="../../index.html">home</a>| </li> <li><a href="../../search.html">search</a>| </li> <li><a href="../index.html">examples</a>| </li> <li><a href="../../gallery.html">gallery</a>| </li> <li><a href="../../contents.html">docs</a> »</li> </ul> </div> <div class="sphinxsidebar"> <div class="sphinxsidebarwrapper"> <h3>This Page</h3> <ul class="this-page-menu"> <li><a href="../../_sources/examples/widgets/menu.txt" rel="nofollow">Show Source</a></li> </ul> <div id="searchbox" style="display: none"> <h3>Quick search</h3> <form class="search" action="../../search.html" method="get"> <input type="text" name="q" size="18" /> <input type="submit" value="Go" /> <input type="hidden" name="check_keywords" value="yes" /> <input type="hidden" name="area" value="default" /> </form> <p class="searchtip" style="font-size: 90%"> Enter search terms or a module, class or function name. </p> </div> <script type="text/javascript">$('#searchbox').show(0);</script> </div> </div> <div class="document"> <div class="documentwrapper"> <div class="bodywrapper"> <div class="body"> <div class="section" id="widgets-example-code-menu-py"> <span id="widgets-menu"></span><h1>widgets example code: menu.py<a class="headerlink" href="#widgets-example-code-menu-py" title="Permalink to this headline">ΒΆ</a></h1> <p>[<a class="reference external" href="menu.py">source code</a>]</p> <div class="highlight-python"><div class="highlight"><pre><span class="kn">import</span> <span class="nn">numpy</span> <span class="kn">as</span> <span class="nn">np</span> <span class="kn">import</span> <span class="nn">matplotlib</span> <span class="kn">import</span> <span class="nn">matplotlib.colors</span> <span class="kn">as</span> <span class="nn">colors</span> <span class="kn">import</span> <span class="nn">matplotlib.patches</span> <span class="kn">as</span> <span class="nn">patches</span> <span class="kn">import</span> <span class="nn">matplotlib.mathtext</span> <span class="kn">as</span> <span class="nn">mathtext</span> <span class="kn">import</span> <span class="nn">matplotlib.pyplot</span> <span class="kn">as</span> <span class="nn">plt</span> <span class="kn">import</span> <span class="nn">matplotlib.artist</span> <span class="kn">as</span> <span class="nn">artist</span> <span class="kn">import</span> <span class="nn">matplotlib.image</span> <span class="kn">as</span> <span class="nn">image</span> <span class="k">class</span> <span class="nc">ItemProperties</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">fontsize</span><span class="o">=</span><span class="mi">14</span><span class="p">,</span> <span class="n">labelcolor</span><span class="o">=</span><span class="s">'black'</span><span class="p">,</span> <span class="n">bgcolor</span><span class="o">=</span><span class="s">'yellow'</span><span class="p">,</span> <span class="n">alpha</span><span class="o">=</span><span class="mf">1.0</span><span class="p">):</span> <span class="bp">self</span><span class="o">.</span><span class="n">fontsize</span> <span class="o">=</span> <span class="n">fontsize</span> <span class="bp">self</span><span class="o">.</span><span class="n">labelcolor</span> <span class="o">=</span> <span class="n">labelcolor</span> <span class="bp">self</span><span class="o">.</span><span class="n">bgcolor</span> <span class="o">=</span> <span class="n">bgcolor</span> <span class="bp">self</span><span class="o">.</span><span class="n">alpha</span> <span class="o">=</span> <span class="n">alpha</span> <span class="bp">self</span><span class="o">.</span><span class="n">labelcolor_rgb</span> <span class="o">=</span> <span class="n">colors</span><span class="o">.</span><span class="n">colorConverter</span><span class="o">.</span><span class="n">to_rgb</span><span class="p">(</span><span class="n">labelcolor</span><span class="p">)</span> <span class="bp">self</span><span class="o">.</span><span class="n">bgcolor_rgb</span> <span class="o">=</span> <span class="n">colors</span><span class="o">.</span><span class="n">colorConverter</span><span class="o">.</span><span class="n">to_rgb</span><span class="p">(</span><span class="n">bgcolor</span><span class="p">)</span> <span class="k">class</span> <span class="nc">MenuItem</span><span class="p">(</span><span class="n">artist</span><span class="o">.</span><span class="n">Artist</span><span class="p">):</span> <span class="n">parser</span> <span class="o">=</span> <span class="n">mathtext</span><span class="o">.</span><span class="n">MathTextParser</span><span class="p">(</span><span class="s">"Bitmap"</span><span class="p">)</span> <span class="n">padx</span> <span class="o">=</span> <span class="mi">5</span> <span class="n">pady</span> <span class="o">=</span> <span class="mi">5</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">fig</span><span class="p">,</span> <span class="n">labelstr</span><span class="p">,</span> <span class="n">props</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span> <span class="n">hoverprops</span><span class="o">=</span><span class="bp">None</span><span class="p">,</span> <span class="n">on_select</span><span class="o">=</span><span class="bp">None</span><span class="p">):</span> <span class="n">artist</span><span class="o">.</span><span class="n">Artist</span><span class="o">.</span><span class="n">__init__</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">set_figure</span><span class="p">(</span><span class="n">fig</span><span class="p">)</span> <span class="bp">self</span><span class="o">.</span><span class="n">labelstr</span> <span class="o">=</span> <span class="n">labelstr</span> <span class="k">if</span> <span class="n">props</span> <span class="ow">is</span> <span class="bp">None</span><span class="p">:</span> <span class="n">props</span> <span class="o">=</span> <span class="n">ItemProperties</span><span class="p">()</span> <span class="k">if</span> <span class="n">hoverprops</span> <span class="ow">is</span> <span class="bp">None</span><span class="p">:</span> <span class="n">hoverprops</span> <span class="o">=</span> <span class="n">ItemProperties</span><span class="p">()</span> <span class="bp">self</span><span class="o">.</span><span class="n">props</span> <span class="o">=</span> <span class="n">props</span> <span class="bp">self</span><span class="o">.</span><span class="n">hoverprops</span> <span class="o">=</span> <span class="n">hoverprops</span> <span class="bp">self</span><span class="o">.</span><span class="n">on_select</span> <span class="o">=</span> <span class="n">on_select</span> <span class="n">x</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">depth</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">parser</span><span class="o">.</span><span class="n">to_mask</span><span class="p">(</span> <span class="n">labelstr</span><span class="p">,</span> <span class="n">fontsize</span><span class="o">=</span><span class="n">props</span><span class="o">.</span><span class="n">fontsize</span><span class="p">,</span> <span class="n">dpi</span><span class="o">=</span><span class="n">fig</span><span class="o">.</span><span class="n">dpi</span><span class="p">)</span> <span class="k">if</span> <span class="n">props</span><span class="o">.</span><span class="n">fontsize</span><span class="o">!=</span><span class="n">hoverprops</span><span class="o">.</span><span class="n">fontsize</span><span class="p">:</span> <span class="k">raise</span> <span class="ne">NotImplementedError</span><span class="p">(</span> <span class="s">'support for different font sizes not implemented'</span><span class="p">)</span> <span class="bp">self</span><span class="o">.</span><span class="n">labelwidth</span> <span class="o">=</span> <span class="n">x</span><span class="o">.</span><span class="n">shape</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span> <span class="bp">self</span><span class="o">.</span><span class="n">labelheight</span> <span class="o">=</span> <span class="n">x</span><span class="o">.</span><span class="n">shape</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">labelArray</span> <span class="o">=</span> <span class="n">np</span><span class="o">.</span><span class="n">zeros</span><span class="p">((</span><span class="n">x</span><span class="o">.</span><span class="n">shape</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="n">x</span><span class="o">.</span><span class="n">shape</span><span class="p">[</span><span class="mi">1</span><span class="p">],</span> <span class="mi">4</span><span class="p">))</span> <span class="bp">self</span><span class="o">.</span><span class="n">labelArray</span><span class="p">[:,</span> <span class="p">:,</span> <span class="o">-</span><span class="mi">1</span><span class="p">]</span> <span class="o">=</span> <span class="n">x</span><span class="o">/</span><span class="mf">255.</span> <span class="bp">self</span><span class="o">.</span><span class="n">label</span> <span class="o">=</span> <span class="n">image</span><span class="o">.</span><span class="n">FigureImage</span><span class="p">(</span><span class="n">fig</span><span class="p">,</span> <span class="n">origin</span><span class="o">=</span><span class="s">'upper'</span><span class="p">)</span> <span class="bp">self</span><span class="o">.</span><span class="n">label</span><span class="o">.</span><span class="n">set_array</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">labelArray</span><span class="p">)</span> <span class="c"># we'll update these later</span> <span class="bp">self</span><span class="o">.</span><span class="n">rect</span> <span class="o">=</span> <span class="n">patches</span><span class="o">.</span><span class="n">Rectangle</span><span class="p">((</span><span class="mi">0</span><span class="p">,</span><span class="mi">0</span><span class="p">),</span> <span class="mi">1</span><span class="p">,</span><span class="mi">1</span><span class="p">)</span> <span class="bp">self</span><span class="o">.</span><span class="n">set_hover_props</span><span class="p">(</span><span class="bp">False</span><span class="p">)</span> <span class="n">fig</span><span class="o">.</span><span class="n">canvas</span><span class="o">.</span><span class="n">mpl_connect</span><span class="p">(</span><span class="s">'button_release_event'</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">check_select</span><span class="p">)</span> <span class="k">def</span> <span class="nf">check_select</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">event</span><span class="p">):</span> <span class="n">over</span><span class="p">,</span> <span class="n">junk</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">rect</span><span class="o">.</span><span class="n">contains</span><span class="p">(</span><span class="n">event</span><span class="p">)</span> <span class="k">if</span> <span class="ow">not</span> <span class="n">over</span><span class="p">:</span> <span class="k">return</span> <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">on_select</span> <span class="ow">is</span> <span class="ow">not</span> <span class="bp">None</span><span class="p">:</span> <span class="bp">self</span><span class="o">.</span><span class="n">on_select</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span> <span class="k">def</span> <span class="nf">set_extent</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">x</span><span class="p">,</span> <span class="n">y</span><span class="p">,</span> <span class="n">w</span><span class="p">,</span> <span class="n">h</span><span class="p">):</span> <span class="k">print</span> <span class="n">x</span><span class="p">,</span> <span class="n">y</span><span class="p">,</span> <span class="n">w</span><span class="p">,</span> <span class="n">h</span> <span class="bp">self</span><span class="o">.</span><span class="n">rect</span><span class="o">.</span><span class="n">set_x</span><span class="p">(</span><span class="n">x</span><span class="p">)</span> <span class="bp">self</span><span class="o">.</span><span class="n">rect</span><span class="o">.</span><span class="n">set_y</span><span class="p">(</span><span class="n">y</span><span class="p">)</span> <span class="bp">self</span><span class="o">.</span><span class="n">rect</span><span class="o">.</span><span class="n">set_width</span><span class="p">(</span><span class="n">w</span><span class="p">)</span> <span class="bp">self</span><span class="o">.</span><span class="n">rect</span><span class="o">.</span><span class="n">set_height</span><span class="p">(</span><span class="n">h</span><span class="p">)</span> <span class="bp">self</span><span class="o">.</span><span class="n">label</span><span class="o">.</span><span class="n">ox</span> <span class="o">=</span> <span class="n">x</span><span class="o">+</span><span class="bp">self</span><span class="o">.</span><span class="n">padx</span> <span class="bp">self</span><span class="o">.</span><span class="n">label</span><span class="o">.</span><span class="n">oy</span> <span class="o">=</span> <span class="n">y</span><span class="o">-</span><span class="bp">self</span><span class="o">.</span><span class="n">depth</span><span class="o">+</span><span class="bp">self</span><span class="o">.</span><span class="n">pady</span><span class="o">/</span><span class="mf">2.</span> <span class="bp">self</span><span class="o">.</span><span class="n">rect</span><span class="o">.</span><span class="n">_update_patch_transform</span><span class="p">()</span> <span class="bp">self</span><span class="o">.</span><span class="n">hover</span> <span class="o">=</span> <span class="bp">False</span> <span class="k">def</span> <span class="nf">draw</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">renderer</span><span class="p">):</span> <span class="bp">self</span><span class="o">.</span><span class="n">rect</span><span class="o">.</span><span class="n">draw</span><span class="p">(</span><span class="n">renderer</span><span class="p">)</span> <span class="bp">self</span><span class="o">.</span><span class="n">label</span><span class="o">.</span><span class="n">draw</span><span class="p">(</span><span class="n">renderer</span><span class="p">)</span> <span class="k">def</span> <span class="nf">set_hover_props</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">b</span><span class="p">):</span> <span class="k">if</span> <span class="n">b</span><span class="p">:</span> <span class="n">props</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">hoverprops</span> <span class="k">else</span><span class="p">:</span> <span class="n">props</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">props</span> <span class="n">r</span><span class="p">,</span> <span class="n">g</span><span class="p">,</span> <span class="n">b</span> <span class="o">=</span> <span class="n">props</span><span class="o">.</span><span class="n">labelcolor_rgb</span> <span class="bp">self</span><span class="o">.</span><span class="n">labelArray</span><span class="p">[:,</span> <span class="p">:,</span> <span class="mi">0</span><span class="p">]</span> <span class="o">=</span> <span class="n">r</span> <span class="bp">self</span><span class="o">.</span><span class="n">labelArray</span><span class="p">[:,</span> <span class="p">:,</span> <span class="mi">1</span><span class="p">]</span> <span class="o">=</span> <span class="n">g</span> <span class="bp">self</span><span class="o">.</span><span class="n">labelArray</span><span class="p">[:,</span> <span class="p">:,</span> <span class="mi">2</span><span class="p">]</span> <span class="o">=</span> <span class="n">b</span> <span class="bp">self</span><span class="o">.</span><span class="n">label</span><span class="o">.</span><span class="n">set_array</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">labelArray</span><span class="p">)</span> <span class="bp">self</span><span class="o">.</span><span class="n">rect</span><span class="o">.</span><span class="n">set</span><span class="p">(</span><span class="n">facecolor</span><span class="o">=</span><span class="n">props</span><span class="o">.</span><span class="n">bgcolor</span><span class="p">,</span> <span class="n">alpha</span><span class="o">=</span><span class="n">props</span><span class="o">.</span><span class="n">alpha</span><span class="p">)</span> <span class="k">def</span> <span class="nf">set_hover</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">event</span><span class="p">):</span> <span class="s">'check the hover status of event and return true if status is changed'</span> <span class="n">b</span><span class="p">,</span><span class="n">junk</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">rect</span><span class="o">.</span><span class="n">contains</span><span class="p">(</span><span class="n">event</span><span class="p">)</span> <span class="n">changed</span> <span class="o">=</span> <span class="p">(</span><span class="n">b</span> <span class="o">!=</span> <span class="bp">self</span><span class="o">.</span><span class="n">hover</span><span class="p">)</span> <span class="k">if</span> <span class="n">changed</span><span class="p">:</span> <span class="bp">self</span><span class="o">.</span><span class="n">set_hover_props</span><span class="p">(</span><span class="n">b</span><span class="p">)</span> <span class="bp">self</span><span class="o">.</span><span class="n">hover</span> <span class="o">=</span> <span class="n">b</span> <span class="k">return</span> <span class="n">changed</span> <span class="k">class</span> <span class="nc">Menu</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">fig</span><span class="p">,</span> <span class="n">menuitems</span><span class="p">):</span> <span class="bp">self</span><span class="o">.</span><span class="n">figure</span> <span class="o">=</span> <span class="n">fig</span> <span class="n">fig</span><span class="o">.</span><span class="n">suppressComposite</span> <span class="o">=</span> <span class="bp">True</span> <span class="bp">self</span><span class="o">.</span><span class="n">menuitems</span> <span class="o">=</span> <span class="n">menuitems</span> <span class="bp">self</span><span class="o">.</span><span class="n">numitems</span> <span class="o">=</span> <span class="nb">len</span><span class="p">(</span><span class="n">menuitems</span><span class="p">)</span> <span class="n">maxw</span> <span class="o">=</span> <span class="nb">max</span><span class="p">([</span><span class="n">item</span><span class="o">.</span><span class="n">labelwidth</span> <span class="k">for</span> <span class="n">item</span> <span class="ow">in</span> <span class="n">menuitems</span><span class="p">])</span> <span class="n">maxh</span> <span class="o">=</span> <span class="nb">max</span><span class="p">([</span><span class="n">item</span><span class="o">.</span><span class="n">labelheight</span> <span class="k">for</span> <span class="n">item</span> <span class="ow">in</span> <span class="n">menuitems</span><span class="p">])</span> <span class="n">totalh</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">numitems</span><span class="o">*</span><span class="n">maxh</span> <span class="o">+</span> <span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">numitems</span><span class="o">+</span><span class="mi">1</span><span class="p">)</span><span class="o">*</span><span class="mi">2</span><span class="o">*</span><span class="n">MenuItem</span><span class="o">.</span><span class="n">pady</span> <span class="n">x0</span> <span class="o">=</span> <span class="mi">100</span> <span class="n">y0</span> <span class="o">=</span> <span class="mi">400</span> <span class="n">width</span> <span class="o">=</span> <span class="n">maxw</span> <span class="o">+</span> <span class="mi">2</span><span class="o">*</span><span class="n">MenuItem</span><span class="o">.</span><span class="n">padx</span> <span class="n">height</span> <span class="o">=</span> <span class="n">maxh</span><span class="o">+</span><span class="n">MenuItem</span><span class="o">.</span><span class="n">pady</span> <span class="k">for</span> <span class="n">item</span> <span class="ow">in</span> <span class="n">menuitems</span><span class="p">:</span> <span class="n">left</span> <span class="o">=</span> <span class="n">x0</span> <span class="n">bottom</span> <span class="o">=</span> <span class="n">y0</span><span class="o">-</span><span class="n">maxh</span><span class="o">-</span><span class="n">MenuItem</span><span class="o">.</span><span class="n">pady</span> <span class="n">item</span><span class="o">.</span><span class="n">set_extent</span><span class="p">(</span><span class="n">left</span><span class="p">,</span> <span class="n">bottom</span><span class="p">,</span> <span class="n">width</span><span class="p">,</span> <span class="n">height</span><span class="p">)</span> <span class="n">fig</span><span class="o">.</span><span class="n">artists</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">item</span><span class="p">)</span> <span class="n">y0</span> <span class="o">-=</span> <span class="n">maxh</span> <span class="o">+</span> <span class="n">MenuItem</span><span class="o">.</span><span class="n">pady</span> <span class="n">fig</span><span class="o">.</span><span class="n">canvas</span><span class="o">.</span><span class="n">mpl_connect</span><span class="p">(</span><span class="s">'motion_notify_event'</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">on_move</span><span class="p">)</span> <span class="k">def</span> <span class="nf">on_move</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">event</span><span class="p">):</span> <span class="n">draw</span> <span class="o">=</span> <span class="bp">False</span> <span class="k">for</span> <span class="n">item</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">menuitems</span><span class="p">:</span> <span class="n">draw</span> <span class="o">=</span> <span class="n">item</span><span class="o">.</span><span class="n">set_hover</span><span class="p">(</span><span class="n">event</span><span class="p">)</span> <span class="k">if</span> <span class="n">draw</span><span class="p">:</span> <span class="bp">self</span><span class="o">.</span><span class="n">figure</span><span class="o">.</span><span class="n">canvas</span><span class="o">.</span><span class="n">draw</span><span class="p">()</span> <span class="k">break</span> <span class="n">fig</span> <span class="o">=</span> <span class="n">plt</span><span class="o">.</span><span class="n">figure</span><span class="p">()</span> <span class="n">fig</span><span class="o">.</span><span class="n">subplots_adjust</span><span class="p">(</span><span class="n">left</span><span class="o">=</span><span class="mf">0.3</span><span class="p">)</span> <span class="n">props</span> <span class="o">=</span> <span class="n">ItemProperties</span><span class="p">(</span><span class="n">labelcolor</span><span class="o">=</span><span class="s">'black'</span><span class="p">,</span> <span class="n">bgcolor</span><span class="o">=</span><span class="s">'yellow'</span><span class="p">,</span> <span class="n">fontsize</span><span class="o">=</span><span class="mi">15</span><span class="p">,</span> <span class="n">alpha</span><span class="o">=</span><span class="mf">0.2</span><span class="p">)</span> <span class="n">hoverprops</span> <span class="o">=</span> <span class="n">ItemProperties</span><span class="p">(</span><span class="n">labelcolor</span><span class="o">=</span><span class="s">'white'</span><span class="p">,</span> <span class="n">bgcolor</span><span class="o">=</span><span class="s">'blue'</span><span class="p">,</span> <span class="n">fontsize</span><span class="o">=</span><span class="mi">15</span><span class="p">,</span> <span class="n">alpha</span><span class="o">=</span><span class="mf">0.2</span><span class="p">)</span> <span class="n">menuitems</span> <span class="o">=</span> <span class="p">[]</span> <span class="k">for</span> <span class="n">label</span> <span class="ow">in</span> <span class="p">(</span><span class="s">'open'</span><span class="p">,</span> <span class="s">'close'</span><span class="p">,</span> <span class="s">'save'</span><span class="p">,</span> <span class="s">'save as'</span><span class="p">,</span> <span class="s">'quit'</span><span class="p">):</span> <span class="k">def</span> <span class="nf">on_select</span><span class="p">(</span><span class="n">item</span><span class="p">):</span> <span class="k">print</span> <span class="s">'you selected'</span><span class="p">,</span> <span class="n">item</span><span class="o">.</span><span class="n">labelstr</span> <span class="n">item</span> <span class="o">=</span> <span class="n">MenuItem</span><span class="p">(</span><span class="n">fig</span><span class="p">,</span> <span class="n">label</span><span class="p">,</span> <span class="n">props</span><span class="o">=</span><span class="n">props</span><span class="p">,</span> <span class="n">hoverprops</span><span class="o">=</span><span class="n">hoverprops</span><span class="p">,</span> <span class="n">on_select</span><span class="o">=</span><span class="n">on_select</span><span class="p">)</span> <span class="n">menuitems</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">item</span><span class="p">)</span> <span class="n">menu</span> <span class="o">=</span> <span class="n">Menu</span><span class="p">(</span><span class="n">fig</span><span class="p">,</span> <span class="n">menuitems</span><span class="p">)</span> <span class="n">plt</span><span class="o">.</span><span class="n">show</span><span class="p">()</span> </pre></div> </div> <p>Keywords: python, matplotlib, pylab, example, codex (see <a class="reference internal" href="../../faq/howto_faq.html#how-to-search-examples"><em>Search examples</em></a>)</p> </div> </div> </div> </div> <div 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