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<h1>Source code for pyo.lib.events</h1><div class="highlight"><pre>
<span></span><span class="sd">"""</span>
<span class="sd">This submodule contains a set of tools to generate sequence of events.</span>
<span class="sd">The purpose of the Event framework is to allow the user to generate a</span>
<span class="sd">sequence of events with as few as possible parameters to specify.</span>
<span class="sd">:py:class:`Events` is the heart of the framework. An Events object computes</span>
<span class="sd">parameters, generally designed with event generator objects, builds the events</span>
<span class="sd">and plays the sequence.</span>
<span class="sd">See the Events framework examples in the documentation for different use cases.</span>
<span class="sd">"""</span>
<span class="sd">"""</span>
<span class="sd">Copyright 2019 Olivier Belanger</span>
<span class="sd">This file is part of pyo, a python module to help digital signal</span>
<span class="sd">processing script creation.</span>
<span class="sd">pyo is free software: you can redistribute it and/or modify</span>
<span class="sd">it under the terms of the GNU General Public License as published by</span>
<span class="sd">the Free Software Foundation, either version 3 of the License, or</span>
<span class="sd">(at your option) any later version.</span>
<span class="sd">pyo is distributed in the hope that it will be useful,</span>
<span class="sd">but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
<span class="sd">MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span>
<span class="sd">GNU General Public License for more details.</span>
<span class="sd">You should have received a copy of the GNU General Public License</span>
<span class="sd">along with pyo. If not, see <http://www.gnu.org/licenses/>.</span>
<span class="sd">"""</span>
<span class="kn">import</span> <span class="nn">math</span>
<span class="kn">import</span> <span class="nn">copy</span>
<span class="kn">import</span> <span class="nn">random</span>
<span class="kn">from</span> <span class="nn">._core</span> <span class="kn">import</span> <span class="o">*</span>
<span class="kn">from</span> <span class="nn">.pattern</span> <span class="kn">import</span> <span class="n">Pattern</span><span class="p">,</span> <span class="n">CallAfter</span>
<span class="kn">from</span> <span class="nn">.tableprocess</span> <span class="kn">import</span> <span class="n">TableRead</span>
<span class="kn">from</span> <span class="nn">.controls</span> <span class="kn">import</span> <span class="n">Fader</span><span class="p">,</span> <span class="n">Adsr</span>
<span class="kn">from</span> <span class="nn">.generators</span> <span class="kn">import</span> <span class="n">RCOsc</span>
<span class="kn">from</span> <span class="nn">.effects</span> <span class="kn">import</span> <span class="n">STRev</span>
<span class="kn">from</span> <span class="nn">.pan</span> <span class="kn">import</span> <span class="n">Pan</span>
<span class="n">inf</span> <span class="o">=</span> <span class="n">math</span><span class="o">.</span><span class="n">inf</span>
<span class="n">PYO_EVENT_OPERATOR_ADD</span> <span class="o">=</span> <span class="mi">1000</span>
<span class="n">PYO_EVENT_OPERATOR_SUB</span> <span class="o">=</span> <span class="mi">1001</span>
<span class="n">PYO_EVENT_OPERATOR_MUL</span> <span class="o">=</span> <span class="mi">1002</span>
<span class="n">PYO_EVENT_OPERATOR_DIV</span> <span class="o">=</span> <span class="mi">1003</span>
<span class="n">PYO_EVENT_OPERATOR_POW</span> <span class="o">=</span> <span class="mi">1004</span>
<span class="n">PYO_EVENT_OPERATOR_MOD</span> <span class="o">=</span> <span class="mi">1005</span>
<span class="n">PYO_EVENT_OPERATOR_FLR</span> <span class="o">=</span> <span class="mi">1006</span>
<span class="n">PYO_EVENT_FILTER_FLOOR</span> <span class="o">=</span> <span class="mi">1100</span>
<span class="n">PYO_EVENT_FILTER_CEIL</span> <span class="o">=</span> <span class="mi">1101</span>
<span class="n">PYO_EVENT_FILTER_ROUND</span> <span class="o">=</span> <span class="mi">1102</span>
<span class="n">PYO_EVENT_FILTER_ABS</span> <span class="o">=</span> <span class="mi">1103</span>
<span class="n">PYO_EVENT_FILTER_SNAP</span> <span class="o">=</span> <span class="mi">1104</span>
<span class="n">PYO_EVENT_FILTER_DEVIATE</span> <span class="o">=</span> <span class="mi">1105</span>
<span class="n">PYO_EVENT_FILTER_CLIP</span> <span class="o">=</span> <span class="mi">1106</span>
<span class="n">PYO_EVENT_FILTER_SCALE</span> <span class="o">=</span> <span class="mi">1107</span>
<span class="n">PYO_EVENT_FILTER_RESCALE</span> <span class="o">=</span> <span class="mi">1108</span>
<span class="n">PYO_EVENT_FILTER_IFTRUE</span> <span class="o">=</span> <span class="mi">1109</span>
<span class="c1"># Utility functions</span>
<span class="c1">###################</span>
<span class="k">def</span> <span class="nf">degreeToMidiNote</span><span class="p">(</span><span class="n">value</span><span class="p">):</span>
<span class="s2">"Converts an octave.degree notation to a MIDI note."</span>
<span class="n">st</span> <span class="o">=</span> <span class="nb">str</span><span class="p">(</span><span class="n">value</span><span class="p">)</span>
<span class="k">if</span> <span class="n">st</span><span class="o">.</span><span class="n">count</span><span class="p">(</span><span class="s2">"."</span><span class="p">)</span> <span class="o">==</span> <span class="mi">0</span><span class="p">:</span>
<span class="k">try</span><span class="p">:</span>
<span class="nb">oct</span> <span class="o">=</span> <span class="nb">int</span><span class="p">(</span><span class="n">st</span><span class="p">)</span>
<span class="n">deg</span> <span class="o">=</span> <span class="mi">0</span>
<span class="k">except</span><span class="p">:</span>
<span class="nb">oct</span> <span class="o">=</span> <span class="mi">0</span>
<span class="n">deg</span> <span class="o">=</span> <span class="mi">0</span>
<span class="k">elif</span> <span class="n">st</span><span class="o">.</span><span class="n">count</span><span class="p">(</span><span class="s2">"."</span><span class="p">)</span> <span class="o">==</span> <span class="mi">1</span><span class="p">:</span>
<span class="n">dotPos</span> <span class="o">=</span> <span class="n">st</span><span class="o">.</span><span class="n">find</span><span class="p">(</span><span class="s2">"."</span><span class="p">)</span>
<span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">st</span><span class="p">)</span> <span class="o">>=</span> <span class="p">(</span><span class="n">dotPos</span> <span class="o">+</span> <span class="mi">3</span><span class="p">):</span>
<span class="n">st</span> <span class="o">=</span> <span class="n">st</span><span class="p">[:</span> <span class="n">dotPos</span> <span class="o">+</span> <span class="mi">3</span><span class="p">]</span>
<span class="k">try</span><span class="p">:</span>
<span class="nb">oct</span><span class="p">,</span> <span class="n">deg</span> <span class="o">=</span> <span class="n">st</span><span class="o">.</span><span class="n">split</span><span class="p">(</span><span class="s2">"."</span><span class="p">)</span>
<span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">deg</span><span class="p">)</span> <span class="o">==</span> <span class="mi">1</span><span class="p">:</span>
<span class="n">deg</span> <span class="o">=</span> <span class="s2">"</span><span class="si">%s</span><span class="s2">0"</span> <span class="o">%</span> <span class="n">deg</span>
<span class="nb">oct</span><span class="p">,</span> <span class="n">deg</span> <span class="o">=</span> <span class="nb">int</span><span class="p">(</span><span class="nb">oct</span><span class="p">),</span> <span class="nb">int</span><span class="p">(</span><span class="n">deg</span><span class="p">)</span>
<span class="k">except</span><span class="p">:</span>
<span class="nb">oct</span><span class="p">,</span> <span class="n">deg</span> <span class="o">=</span> <span class="mi">0</span><span class="p">,</span> <span class="mi">0</span>
<span class="k">return</span> <span class="nb">oct</span> <span class="o">*</span> <span class="mi">12</span> <span class="o">+</span> <span class="n">deg</span>
<span class="k">def</span> <span class="nf">midiNoteToDegree</span><span class="p">(</span><span class="n">value</span><span class="p">):</span>
<span class="s2">"Converts a MIDI note to an octave.degree notation."</span>
<span class="nb">oct</span> <span class="o">=</span> <span class="nb">int</span><span class="p">(</span><span class="n">value</span> <span class="o">/</span> <span class="mi">12</span><span class="p">)</span>
<span class="n">deg</span> <span class="o">=</span> <span class="n">value</span> <span class="o">%</span> <span class="mi">12</span>
<span class="k">return</span> <span class="s2">"</span><span class="si">%d</span><span class="s2">.</span><span class="si">%02d</span><span class="s2">"</span> <span class="o">%</span> <span class="p">(</span><span class="nb">oct</span><span class="p">,</span> <span class="n">deg</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">getValueFromAttribute</span><span class="p">(</span><span class="n">master</span><span class="p">,</span> <span class="n">key</span><span class="p">,</span> <span class="n">currentDict</span><span class="p">,</span> <span class="n">valueIfNone</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
<span class="s2">"Retrieve the value of an Events attribute, resolving its type."</span>
<span class="n">attribute</span> <span class="o">=</span> <span class="n">master</span><span class="p">[</span><span class="n">key</span><span class="p">]</span>
<span class="n">returnValue</span> <span class="o">=</span> <span class="kc">None</span>
<span class="k">if</span> <span class="n">key</span> <span class="ow">in</span> <span class="n">currentDict</span><span class="p">:</span>
<span class="k">return</span> <span class="n">currentDict</span><span class="p">[</span><span class="n">key</span><span class="p">]</span>
<span class="k">elif</span> <span class="n">attribute</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
<span class="n">returnValue</span> <span class="o">=</span> <span class="n">valueIfNone</span>
<span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">attribute</span><span class="p">,</span> <span class="n">EventKey</span><span class="p">):</span>
<span class="k">if</span> <span class="n">attribute</span><span class="o">.</span><span class="n">externalMaster</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
<span class="k">if</span> <span class="n">attribute</span><span class="o">.</span><span class="n">getKey</span><span class="p">()</span> <span class="ow">in</span> <span class="n">currentDict</span><span class="p">:</span>
<span class="n">returnValue</span> <span class="o">=</span> <span class="n">currentDict</span><span class="p">[</span><span class="n">attribute</span><span class="o">.</span><span class="n">getKey</span><span class="p">()]</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">returnValue</span> <span class="o">=</span> <span class="n">getValueFromAttribute</span><span class="p">(</span><span class="n">master</span><span class="p">,</span> <span class="n">attribute</span><span class="o">.</span><span class="n">getKey</span><span class="p">(),</span> <span class="n">currentDict</span><span class="p">)</span>
<span class="n">currentDict</span><span class="p">[</span><span class="n">attribute</span><span class="o">.</span><span class="n">getKey</span><span class="p">()]</span> <span class="o">=</span> <span class="n">returnValue</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">returnValue</span> <span class="o">=</span> <span class="n">attribute</span><span class="o">.</span><span class="n">externalMaster</span><span class="o">.</span><span class="n">getCurrentDict</span><span class="p">()</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">attribute</span><span class="o">.</span><span class="n">getKey</span><span class="p">(),</span> <span class="kc">None</span><span class="p">)</span>
<span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">attribute</span><span class="p">,</span> <span class="n">PyoObject</span><span class="p">):</span>
<span class="n">returnValue</span> <span class="o">=</span> <span class="n">attribute</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="kc">False</span><span class="p">)</span>
<span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">attribute</span><span class="p">,</span> <span class="n">PyoTableObject</span><span class="p">):</span>
<span class="n">returnValue</span> <span class="o">=</span> <span class="n">attribute</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">attribute</span><span class="o">.</span><span class="n">setMaster</span><span class="p">(</span><span class="n">master</span><span class="p">)</span>
<span class="n">returnValue</span> <span class="o">=</span> <span class="n">attribute</span><span class="o">.</span><span class="n">next</span><span class="p">()</span>
<span class="n">currentDict</span><span class="p">[</span><span class="n">key</span><span class="p">]</span> <span class="o">=</span> <span class="n">returnValue</span>
<span class="k">return</span> <span class="n">returnValue</span>
<span class="c1"># Utility classes</span>
<span class="c1">#################</span>
<span class="k">class</span> <span class="nc">MarkovGen</span><span class="p">:</span>
<span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">lst</span><span class="p">,</span> <span class="n">order</span><span class="o">=</span><span class="mi">2</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">originalList</span> <span class="o">=</span> <span class="n">lst</span>
<span class="bp">self</span><span class="o">.</span><span class="n">temporaryList</span> <span class="o">=</span> <span class="p">[]</span>
<span class="bp">self</span><span class="o">.</span><span class="n">playedNotes</span> <span class="o">=</span> <span class="p">[]</span>
<span class="bp">self</span><span class="o">.</span><span class="n">order</span> <span class="o">=</span> <span class="n">order</span>
<span class="bp">self</span><span class="o">.</span><span class="n">startPlayback</span><span class="p">()</span>
<span class="k">def</span> <span class="nf">startPlayback</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">playedNotes</span> <span class="o">=</span> <span class="p">[]</span>
<span class="k">for</span> <span class="n">val</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">originalList</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">temporaryList</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">val</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="bp">self</span><span class="o">.</span><span class="n">order</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">temporaryList</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">originalList</span><span class="p">[</span><span class="n">i</span><span class="p">])</span>
<span class="bp">self</span><span class="o">.</span><span class="n">playedNotes</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">originalList</span><span class="p">[</span><span class="nb">len</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">originalList</span><span class="p">)</span> <span class="o">-</span> <span class="bp">self</span><span class="o">.</span><span class="n">order</span> <span class="p">:]</span>
<span class="k">def</span> <span class="nf">next</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="n">newValue</span> <span class="o">=</span> <span class="mi">0</span>
<span class="n">condition</span> <span class="o">=</span> <span class="kc">False</span>
<span class="bp">self</span><span class="o">.</span><span class="n">probTable</span> <span class="o">=</span> <span class="p">[]</span>
<span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="nb">len</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">temporaryList</span><span class="p">)</span> <span class="o">-</span> <span class="bp">self</span><span class="o">.</span><span class="n">order</span><span class="p">):</span>
<span class="k">for</span> <span class="n">iord</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">order</span><span class="p">):</span>
<span class="k">if</span> <span class="p">(</span>
<span class="bp">self</span><span class="o">.</span><span class="n">playedNotes</span><span class="p">[</span><span class="nb">len</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">playedNotes</span><span class="p">)</span> <span class="o">-</span> <span class="p">(</span><span class="n">iord</span> <span class="o">+</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">temporaryList</span><span class="p">[(</span><span class="bp">self</span><span class="o">.</span><span class="n">order</span> <span class="o">-</span> <span class="mi">1</span><span class="p">)</span> <span class="o">+</span> <span class="n">i</span> <span class="o">-</span> <span class="n">iord</span><span class="p">]</span>
<span class="p">):</span>
<span class="n">condition</span> <span class="o">=</span> <span class="kc">False</span>
<span class="k">break</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">condition</span> <span class="o">=</span> <span class="kc">True</span>
<span class="k">if</span> <span class="n">condition</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">probTable</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">temporaryList</span><span class="p">[</span><span class="n">i</span> <span class="o">+</span> <span class="bp">self</span><span class="o">.</span><span class="n">order</span><span class="p">])</span>
<span class="n">newValue</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">probTable</span><span class="p">[</span><span class="n">random</span><span class="o">.</span><span class="n">randint</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="p">(</span><span class="nb">len</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">probTable</span><span class="p">)</span> <span class="o">-</span> <span class="mi">1</span><span class="p">))]</span>
<span class="bp">self</span><span class="o">.</span><span class="n">playedNotes</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">newValue</span><span class="p">)</span>
<span class="k">return</span> <span class="n">newValue</span>
<span class="k">def</span> <span class="nf">setOrder</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">order</span><span class="p">):</span>
<span class="k">if</span> <span class="n">order</span> <span class="o">!=</span> <span class="bp">self</span><span class="o">.</span><span class="n">order</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">order</span> <span class="o">=</span> <span class="n">order</span>
<span class="bp">self</span><span class="o">.</span><span class="n">startPlayback</span><span class="p">()</span>
<span class="c1"># Instruments</span>
<span class="c1">#############</span>
<div class="viewcode-block" id="EventInstrument"><a class="viewcode-back" href="../../../api/classes/events.html#pyo.EventInstrument">[docs]</a><span class="k">class</span> <span class="nc">EventInstrument</span><span class="p">(</span><span class="nb">object</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Base class for an Events instrument. All attributes given to the Events</span>
<span class="sd"> object can be accessed as self.attribute_name inside the instrument.</span>
<span class="sd"> This base class constructs an envelope, named self.env, according to the</span>
<span class="sd"> value given to 'envelope' (ex.: a LinTable object) or to 'attack', 'decay',</span>
<span class="sd"> 'sustain' and 'release' attributes of the event. The envelope is also</span>
<span class="sd"> scaled by the value of self.amp, defined by 'amp', 'db' or 'midivel'</span>
<span class="sd"> arguments of the Events object.</span>
<span class="sd"> This base class also creates a self.freq variable based on 'freq', 'degree'</span>
<span class="sd"> or 'midinote' arguments. This variable can be used in the instrument to</span>
<span class="sd"> control the pitch of the sound.</span>
<span class="sd"> All resources are automatically destroyed when the lifetime of the event</span>
<span class="sd"> is over. The lifetime of the event is set as self.dur + self.tail ('dur'</span>
<span class="sd"> or 'beat' and 'tail' arguments of Events).</span>
<span class="sd"> .. note::</span>
<span class="sd"> The user has almost no reason to instantiate an EventInstrument object</span>
<span class="sd"> himself. Instead, he should use it as a parent class for its own instruments.</span>
<span class="sd"> """</span>
<span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="o">**</span><span class="n">args</span><span class="p">):</span>
<span class="k">for</span> <span class="n">key</span><span class="p">,</span> <span class="n">val</span> <span class="ow">in</span> <span class="n">args</span><span class="o">.</span><span class="n">items</span><span class="p">():</span>
<span class="nb">setattr</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">key</span><span class="p">,</span> <span class="n">val</span><span class="p">)</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">envelope</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">env</span> <span class="o">=</span> <span class="n">TableRead</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">envelope</span><span class="p">,</span> <span class="mf">1.0</span> <span class="o">/</span> <span class="bp">self</span><span class="o">.</span><span class="n">dur</span><span class="p">,</span> <span class="n">mul</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">amp</span><span class="p">)</span><span class="o">.</span><span class="n">play</span><span class="p">()</span>
<span class="k">elif</span> <span class="bp">self</span><span class="o">.</span><span class="n">decay</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">env</span> <span class="o">=</span> <span class="n">Adsr</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">attack</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">decay</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">sustain</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">release</span><span class="p">,</span> <span class="n">dur</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">dur</span><span class="p">,</span> <span class="n">mul</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">amp</span><span class="p">)</span><span class="o">.</span><span class="n">play</span><span class="p">()</span>
<span class="k">else</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">env</span> <span class="o">=</span> <span class="n">Fader</span><span class="p">(</span><span class="n">fadein</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">attack</span><span class="p">,</span> <span class="n">fadeout</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">release</span><span class="p">,</span> <span class="n">dur</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">dur</span><span class="p">,</span> <span class="n">mul</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">amp</span><span class="p">)</span><span class="o">.</span><span class="n">play</span><span class="p">()</span>
<span class="bp">self</span><span class="o">.</span><span class="n">clearWhenDone</span> <span class="o">=</span> <span class="n">CallAfter</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">clear</span><span class="p">,</span> <span class="n">time</span><span class="o">=</span><span class="mi">0</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">clearWhenDone</span><span class="o">.</span><span class="n">play</span><span class="p">(</span><span class="n">delay</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">dur</span> <span class="o">+</span> <span class="bp">self</span><span class="o">.</span><span class="n">tail</span><span class="p">,</span> <span class="n">dur</span><span class="o">=</span><span class="mf">0.25</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">clear</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">removeFunction</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">instanceId</span><span class="p">)</span></div>
<span class="k">class</span> <span class="nc">DefaultInstrument</span><span class="p">(</span><span class="n">EventInstrument</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> The default instrument, playing a stereo RC oscillator, used when</span>
<span class="sd"> 'instr' attribute is not defined for an Events object.</span>
<span class="sd"> """</span>
<span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="o">**</span><span class="n">args</span><span class="p">):</span>
<span class="n">EventInstrument</span><span class="o">.</span><span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="o">**</span><span class="n">args</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">osc</span> <span class="o">=</span> <span class="n">RCOsc</span><span class="p">(</span><span class="n">freq</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">freq</span><span class="p">,</span> <span class="n">sharp</span><span class="o">=</span><span class="mf">0.5</span><span class="p">,</span> <span class="n">mul</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">env</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">sig</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">osc</span><span class="o">.</span><span class="n">mix</span><span class="p">(</span><span class="mi">2</span><span class="p">)</span><span class="o">.</span><span class="n">out</span><span class="p">()</span>
<span class="c1"># Event Scale</span>
<span class="c1">#############</span>
<div class="viewcode-block" id="EventScale"><a class="viewcode-back" href="../../../api/classes/events.html#pyo.EventScale">[docs]</a><span class="k">class</span> <span class="nc">EventScale</span><span class="p">:</span>
<span class="sd">"""</span>
<span class="sd"> Musical scale builder.</span>
<span class="sd"> EventScale constructs a list of pitches according to its arguments.</span>
<span class="sd"> EventScale works similarly to list, ie. uses slicing with square brackets</span>
<span class="sd"> to access data, with the first element at index 0.</span>
<span class="sd"> It also accept the len() function, which returns the number of elements in</span>
<span class="sd"> the scale.</span>
<span class="sd"> :Args:</span>
<span class="sd"> root: str, optional</span>
<span class="sd"> The base note (fundamental) of the scale. Possible values are:</span>
<span class="sd"> 'C', 'C#', 'Db', 'D', 'D#', 'Eb', 'E', 'F', 'F#',</span>
<span class="sd"> 'Gb', 'G', 'G#', 'Ab', 'A', 'A#', 'Bb', 'B'.</span>
<span class="sd"> Defaults to 'C'.</span>
<span class="sd"> scale: str, optional</span>
<span class="sd"> The scale name to construct. Possible scales are:</span>
<span class="sd"> 'major', 'minorH', 'minorM', 'ionian', 'dorian', 'phrygian',</span>
<span class="sd"> 'lydian', 'mixolydian', 'aeolian', 'locrian', 'wholeTone',</span>
<span class="sd"> 'majorPenta', 'minorPenta', 'egyptian', 'majorBlues', 'minorBlues',</span>
<span class="sd"> 'minorHungarian'.</span>
<span class="sd"> Defaults to 'major'.</span>
<span class="sd"> first: int, optional</span>
<span class="sd"> The first octave of the generated scale, in multiple of 12. A value</span>
<span class="sd"> of 4, for a root of 'C' means the first note of the scale will be 48.</span>
<span class="sd"> Defaults to 4.</span>
<span class="sd"> octaves: int, optional</span>
<span class="sd"> The number of octaves in the generated scale. Defaults to 2.</span>
<span class="sd"> type: int, optional</span>
<span class="sd"> The unit type in which the values are stored. Possible types are:</span>
<span class="sd"> 0: MIDI note</span>
<span class="sd"> 1: Hertz</span>
<span class="sd"> 2: octave.degree notation (MIDI note 48 is 4.00 in octave.degrees)</span>
<span class="sd"> .. note::</span>
<span class="sd"> Here is a table showing the relationship between the three unit types that</span>
<span class="sd"> EventScale can handle.</span>
<span class="sd"> ======== ======== ========</span>
<span class="sd"> midi oct.deg Hertz</span>
<span class="sd"> ======== ======== ========</span>
<span class="sd"> 48 4.00 130.81</span>
<span class="sd"> 50 4.02 146.83</span>
<span class="sd"> 52 4.04 164.81</span>
<span class="sd"> 53 4.05 174.61</span>
<span class="sd"> 55 4.07 195.99</span>
<span class="sd"> 57 4.09 220.00</span>
<span class="sd"> 59 4.11 246.94</span>
<span class="sd"> 60 5.00 261.62</span>
<span class="sd"> ======== ======== ========</span>
<span class="sd"> >>> s = Server().boot()</span>
<span class="sd"> >>> s.start()</span>
<span class="sd"> >>> scl = EventScale(root="C", scale="major", first=4, octaves=2, type=2)</span>
<span class="sd"> >>> e = Events(degree=EventDrunk(scl, maxStep=-2), beat=1/4., db=-6).play()</span>
<span class="sd"> """</span>
<span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">root</span><span class="o">=</span><span class="s2">"C"</span><span class="p">,</span> <span class="n">scale</span><span class="o">=</span><span class="s2">"major"</span><span class="p">,</span> <span class="n">first</span><span class="o">=</span><span class="mi">4</span><span class="p">,</span> <span class="n">octaves</span><span class="o">=</span><span class="mi">2</span><span class="p">,</span> <span class="nb">type</span><span class="o">=</span><span class="mi">0</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">rootDegrees</span> <span class="o">=</span> <span class="p">{</span>
<span class="s2">"C"</span><span class="p">:</span> <span class="mi">0</span><span class="p">,</span>
<span class="s2">"C#"</span><span class="p">:</span> <span class="mi">1</span><span class="p">,</span>
<span class="s2">"Db"</span><span class="p">:</span> <span class="mi">1</span><span class="p">,</span>
<span class="s2">"D"</span><span class="p">:</span> <span class="mi">2</span><span class="p">,</span>
<span class="s2">"D#"</span><span class="p">:</span> <span class="mi">3</span><span class="p">,</span>
<span class="s2">"Eb"</span><span class="p">:</span> <span class="mi">3</span><span class="p">,</span>
<span class="s2">"E"</span><span class="p">:</span> <span class="mi">4</span><span class="p">,</span>
<span class="s2">"F"</span><span class="p">:</span> <span class="mi">5</span><span class="p">,</span>
<span class="s2">"F#"</span><span class="p">:</span> <span class="mi">6</span><span class="p">,</span>
<span class="s2">"Gb"</span><span class="p">:</span> <span class="mi">6</span><span class="p">,</span>
<span class="s2">"G"</span><span class="p">:</span> <span class="mi">7</span><span class="p">,</span>
<span class="s2">"G#"</span><span class="p">:</span> <span class="mi">8</span><span class="p">,</span>
<span class="s2">"Ab"</span><span class="p">:</span> <span class="mi">8</span><span class="p">,</span>
<span class="s2">"A"</span><span class="p">:</span> <span class="mi">9</span><span class="p">,</span>
<span class="s2">"A#"</span><span class="p">:</span> <span class="mi">10</span><span class="p">,</span>
<span class="s2">"Bb"</span><span class="p">:</span> <span class="mi">10</span><span class="p">,</span>
<span class="s2">"B"</span><span class="p">:</span> <span class="mi">11</span><span class="p">,</span>
<span class="p">}</span>
<span class="bp">self</span><span class="o">.</span><span class="n">scales</span> <span class="o">=</span> <span class="p">{</span>
<span class="s2">"major"</span><span class="p">:</span> <span class="p">[</span><span class="mi">0</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="mi">4</span><span class="p">,</span> <span class="mi">5</span><span class="p">,</span> <span class="mi">7</span><span class="p">,</span> <span class="mi">9</span><span class="p">,</span> <span class="mi">11</span><span class="p">],</span>
<span class="s2">"minorH"</span><span class="p">:</span> <span class="p">[</span><span class="mi">0</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="mi">3</span><span class="p">,</span> <span class="mi">5</span><span class="p">,</span> <span class="mi">7</span><span class="p">,</span> <span class="mi">8</span><span class="p">,</span> <span class="mi">11</span><span class="p">],</span>
<span class="s2">"minorM"</span><span class="p">:</span> <span class="p">[</span><span class="mi">0</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="mi">3</span><span class="p">,</span> <span class="mi">5</span><span class="p">,</span> <span class="mi">7</span><span class="p">,</span> <span class="mi">9</span><span class="p">,</span> <span class="mi">11</span><span class="p">],</span>
<span class="s2">"ionian"</span><span class="p">:</span> <span class="p">[</span><span class="mi">0</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="mi">4</span><span class="p">,</span> <span class="mi">5</span><span class="p">,</span> <span class="mi">7</span><span class="p">,</span> <span class="mi">9</span><span class="p">,</span> <span class="mi">11</span><span class="p">],</span>
<span class="s2">"dorian"</span><span class="p">:</span> <span class="p">[</span><span class="mi">0</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="mi">3</span><span class="p">,</span> <span class="mi">5</span><span class="p">,</span> <span class="mi">7</span><span class="p">,</span> <span class="mi">9</span><span class="p">,</span> <span class="mi">10</span><span class="p">],</span>
<span class="s2">"phrygian"</span><span class="p">:</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">3</span><span class="p">,</span> <span class="mi">5</span><span class="p">,</span> <span class="mi">7</span><span class="p">,</span> <span class="mi">8</span><span class="p">,</span> <span class="mi">10</span><span class="p">],</span>
<span class="s2">"lydian"</span><span class="p">:</span> <span class="p">[</span><span class="mi">0</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="mi">4</span><span class="p">,</span> <span class="mi">6</span><span class="p">,</span> <span class="mi">7</span><span class="p">,</span> <span class="mi">9</span><span class="p">,</span> <span class="mi">11</span><span class="p">],</span>
<span class="s2">"mixolydian"</span><span class="p">:</span> <span class="p">[</span><span class="mi">0</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="mi">4</span><span class="p">,</span> <span class="mi">5</span><span class="p">,</span> <span class="mi">7</span><span class="p">,</span> <span class="mi">9</span><span class="p">,</span> <span class="mi">10</span><span class="p">],</span>
<span class="s2">"aeolian"</span><span class="p">:</span> <span class="p">[</span><span class="mi">0</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="mi">3</span><span class="p">,</span> <span class="mi">5</span><span class="p">,</span> <span class="mi">7</span><span class="p">,</span> <span class="mi">8</span><span class="p">,</span> <span class="mi">10</span><span class="p">],</span>
<span class="s2">"locrian"</span><span class="p">:</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">3</span><span class="p">,</span> <span class="mi">5</span><span class="p">,</span> <span class="mi">6</span><span class="p">,</span> <span class="mi">8</span><span class="p">,</span> <span class="mi">10</span><span class="p">],</span>
<span class="s2">"wholeTone"</span><span class="p">:</span> <span class="p">[</span><span class="mi">0</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="mi">4</span><span class="p">,</span> <span class="mi">6</span><span class="p">,</span> <span class="mi">8</span><span class="p">,</span> <span class="mi">10</span><span class="p">],</span>
<span class="s2">"majorPenta"</span><span class="p">:</span> <span class="p">[</span><span class="mi">0</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="mi">4</span><span class="p">,</span> <span class="mi">7</span><span class="p">,</span> <span class="mi">9</span><span class="p">],</span>
<span class="s2">"minorPenta"</span><span class="p">:</span> <span class="p">[</span><span class="mi">0</span><span class="p">,</span> <span class="mi">3</span><span class="p">,</span> <span class="mi">5</span><span class="p">,</span> <span class="mi">7</span><span class="p">,</span> <span class="mi">10</span><span class="p">],</span>
<span class="s2">"egyptian"</span><span class="p">:</span> <span class="p">[</span><span class="mi">0</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="mi">5</span><span class="p">,</span> <span class="mi">7</span><span class="p">,</span> <span class="mi">10</span><span class="p">],</span>
<span class="s2">"majorBlues"</span><span class="p">:</span> <span class="p">[</span><span class="mi">0</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="mi">5</span><span class="p">,</span> <span class="mi">7</span><span class="p">,</span> <span class="mi">9</span><span class="p">],</span>
<span class="s2">"minorBlues"</span><span class="p">:</span> <span class="p">[</span><span class="mi">0</span><span class="p">,</span> <span class="mi">3</span><span class="p">,</span> <span class="mi">5</span><span class="p">,</span> <span class="mi">8</span><span class="p">,</span> <span class="mi">10</span><span class="p">],</span>
<span class="s2">"minorHungarian"</span><span class="p">:</span> <span class="p">[</span><span class="mi">0</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="mi">3</span><span class="p">,</span> <span class="mi">6</span><span class="p">,</span> <span class="mi">7</span><span class="p">,</span> <span class="mi">8</span><span class="p">,</span> <span class="mi">11</span><span class="p">],</span>
<span class="p">}</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_init</span> <span class="o">=</span> <span class="kc">True</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_length</span> <span class="o">=</span> <span class="mi">0</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_root</span> <span class="o">=</span> <span class="s2">"c"</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_scale</span> <span class="o">=</span> <span class="s2">"major"</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_first</span> <span class="o">=</span> <span class="n">first</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_octaves</span> <span class="o">=</span> <span class="n">octaves</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_type</span> <span class="o">=</span> <span class="nb">type</span>
<span class="bp">self</span><span class="o">.</span><span class="n">setRoot</span><span class="p">(</span><span class="n">root</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">setScale</span><span class="p">(</span><span class="n">scale</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">data</span> <span class="o">=</span> <span class="p">[]</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_init</span> <span class="o">=</span> <span class="kc">False</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_populate</span><span class="p">()</span>
<span class="k">def</span> <span class="nf">_populate</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">_init</span><span class="p">:</span>
<span class="k">return</span>
<span class="k">del</span> <span class="bp">self</span><span class="o">.</span><span class="n">data</span><span class="p">[:]</span>
<span class="n">degree</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">rootDegrees</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_root</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">rootDegrees</span><span class="p">[</span><span class="s2">"C"</span><span class="p">])</span>
<span class="n">currentScale</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">scales</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_scale</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">scales</span><span class="p">[</span><span class="s2">"major"</span><span class="p">])</span>
<span class="n">length</span> <span class="o">=</span> <span class="nb">len</span><span class="p">(</span><span class="n">currentScale</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">length</span> <span class="o">*</span> <span class="bp">self</span><span class="o">.</span><span class="n">_octaves</span> <span class="o">+</span> <span class="mi">1</span><span class="p">):</span>
<span class="n">octave</span> <span class="o">=</span> <span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_first</span> <span class="o">+</span> <span class="nb">int</span><span class="p">(</span><span class="n">i</span> <span class="o">/</span> <span class="n">length</span><span class="p">))</span> <span class="o">*</span> <span class="mi">12</span>
<span class="bp">self</span><span class="o">.</span><span class="n">data</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">currentScale</span><span class="p">[</span><span class="n">i</span> <span class="o">%</span> <span class="n">length</span><span class="p">]</span> <span class="o">+</span> <span class="n">octave</span> <span class="o">+</span> <span class="n">degree</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_length</span> <span class="o">=</span> <span class="nb">len</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">data</span><span class="p">)</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">_type</span> <span class="o">==</span> <span class="mi">1</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">data</span> <span class="o">=</span> <span class="n">midiToHz</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">data</span><span class="p">)</span>
<span class="k">elif</span> <span class="bp">self</span><span class="o">.</span><span class="n">_type</span> <span class="o">==</span> <span class="mi">2</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">data</span> <span class="o">=</span> <span class="p">[</span><span class="n">midiNoteToDegree</span><span class="p">(</span><span class="n">x</span><span class="p">)</span> <span class="k">for</span> <span class="n">x</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">data</span><span class="p">]</span>
<span class="k">def</span> <span class="fm">__len__</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">_length</span>
<span class="k">def</span> <span class="fm">__getitem__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">key</span><span class="p">):</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">data</span><span class="p">[</span><span class="n">key</span><span class="p">]</span>
<span class="k">def</span> <span class="fm">__setitem__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">key</span><span class="p">,</span> <span class="n">item</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">data</span><span class="p">[</span><span class="n">key</span><span class="p">]</span> <span class="o">=</span> <span class="n">item</span>
<div class="viewcode-block" id="EventScale.setRoot"><a class="viewcode-back" href="../../../api/classes/events.html#pyo.EventScale.setRoot">[docs]</a> <span class="k">def</span> <span class="nf">setRoot</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="sd">"""</span>
<span class="sd"> Replace the `root` attribute and reconstruct the scale.</span>
<span class="sd"> :Args:</span>
<span class="sd"> x: string</span>
<span class="sd"> New `root` attribute.</span>
<span class="sd"> """</span>
<span class="k">if</span> <span class="n">x</span> <span class="ow">not</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">rootDegrees</span><span class="p">:</span>
<span class="nb">print</span><span class="p">(</span><span class="s2">"EventScale: does not recognize root '</span><span class="si">%s</span><span class="s2">'..."</span> <span class="o">%</span> <span class="n">x</span><span class="p">)</span>
<span class="nb">print</span><span class="p">(</span><span class="s2">"... Using 'C'."</span><span class="p">)</span>
<span class="n">x</span> <span class="o">=</span> <span class="s2">"C"</span>
<span class="k">if</span> <span class="n">x</span> <span class="o">!=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_root</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_root</span> <span class="o">=</span> <span class="n">x</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_populate</span><span class="p">()</span></div>
<div class="viewcode-block" id="EventScale.setScale"><a class="viewcode-back" href="../../../api/classes/events.html#pyo.EventScale.setScale">[docs]</a> <span class="k">def</span> <span class="nf">setScale</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="sd">"""</span>
<span class="sd"> Replace the `scale` attribute and reconstruct the scale.</span>
<span class="sd"> :Args:</span>
<span class="sd"> x: string</span>
<span class="sd"> New `scale` attribute.</span>
<span class="sd"> """</span>
<span class="k">if</span> <span class="n">x</span> <span class="ow">not</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">scales</span><span class="p">:</span>
<span class="nb">print</span><span class="p">(</span><span class="s2">"EventScale: does not recognize scale '</span><span class="si">%s</span><span class="s2">'..."</span> <span class="o">%</span> <span class="n">x</span><span class="p">)</span>
<span class="nb">print</span><span class="p">(</span><span class="s2">"... Using 'major'."</span><span class="p">)</span>
<span class="n">x</span> <span class="o">=</span> <span class="s2">"major"</span>
<span class="k">if</span> <span class="n">x</span> <span class="o">!=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_scale</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_scale</span> <span class="o">=</span> <span class="n">x</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_populate</span><span class="p">()</span></div>
<div class="viewcode-block" id="EventScale.setFirst"><a class="viewcode-back" href="../../../api/classes/events.html#pyo.EventScale.setFirst">[docs]</a> <span class="k">def</span> <span class="nf">setFirst</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="sd">"""</span>
<span class="sd"> Replace the `first` attribute and reconstruct the scale.</span>
<span class="sd"> :Args:</span>
<span class="sd"> x: int</span>
<span class="sd"> New `int` attribute.</span>
<span class="sd"> """</span>
<span class="k">if</span> <span class="n">x</span> <span class="o">!=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_first</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_first</span> <span class="o">=</span> <span class="n">x</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_populate</span><span class="p">()</span></div>
<div class="viewcode-block" id="EventScale.setOctaves"><a class="viewcode-back" href="../../../api/classes/events.html#pyo.EventScale.setOctaves">[docs]</a> <span class="k">def</span> <span class="nf">setOctaves</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="sd">"""</span>
<span class="sd"> Replace the `octaves` attribute and reconstruct the scale.</span>
<span class="sd"> :Args:</span>
<span class="sd"> x: int</span>
<span class="sd"> New `octaves` attribute.</span>
<span class="sd"> """</span>
<span class="k">if</span> <span class="n">x</span> <span class="o">!=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_octaves</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_octaves</span> <span class="o">=</span> <span class="n">x</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_populate</span><span class="p">()</span></div>
<div class="viewcode-block" id="EventScale.setType"><a class="viewcode-back" href="../../../api/classes/events.html#pyo.EventScale.setType">[docs]</a> <span class="k">def</span> <span class="nf">setType</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="sd">"""</span>
<span class="sd"> Replace the `type` attribute and reconstruct the scale.</span>
<span class="sd"> :Args:</span>
<span class="sd"> x: int</span>
<span class="sd"> New `type` attribute.</span>
<span class="sd"> """</span>
<span class="k">if</span> <span class="n">x</span> <span class="o">!=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_type</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_type</span> <span class="o">=</span> <span class="n">x</span>
<span class="bp">self</span><span class="o">.</span><span class="n">_populate</span><span class="p">()</span></div>
<span class="nd">@property</span>
<span class="k">def</span> <span class="nf">root</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">"""string. Name of the fundamental key."""</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_root</span>
<span class="nd">@root</span><span class="o">.</span><span class="n">setter</span>
<span class="k">def</span> <span class="nf">root</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="bp">self</span><span class="o">.</span><span class="n">setRoot</span><span class="p">(</span><span class="n">x</span><span class="p">)</span>
<span class="nd">@property</span>
<span class="k">def</span> <span class="nf">scale</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">"""string. Name of scale to generate."""</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_scale</span>
<span class="nd">@scale</span><span class="o">.</span><span class="n">setter</span>
<span class="k">def</span> <span class="nf">scale</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="bp">self</span><span class="o">.</span><span class="n">setScale</span><span class="p">(</span><span class="n">x</span><span class="p">)</span>
<span class="nd">@property</span>
<span class="k">def</span> <span class="nf">first</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">"""int. First octave to generate."""</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_first</span>
<span class="nd">@first</span><span class="o">.</span><span class="n">setter</span>
<span class="k">def</span> <span class="nf">first</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="bp">self</span><span class="o">.</span><span class="n">setFirst</span><span class="p">(</span><span class="n">x</span><span class="p">)</span>
<span class="nd">@property</span>
<span class="k">def</span> <span class="nf">octaves</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">"""int. Number of octaves to generate."""</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_octaves</span>
<span class="nd">@octaves</span><span class="o">.</span><span class="n">setter</span>
<span class="k">def</span> <span class="nf">octaves</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="bp">self</span><span class="o">.</span><span class="n">setOctaves</span><span class="p">(</span><span class="n">x</span><span class="p">)</span>
<span class="nd">@property</span>
<span class="k">def</span> <span class="nf">type</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">"""int. Unit in which pitch values are stored."""</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_type</span>
<span class="nd">@type</span><span class="o">.</span><span class="n">setter</span>
<span class="k">def</span> <span class="nf">type</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="bp">self</span><span class="o">.</span><span class="n">setType</span><span class="p">(</span><span class="n">x</span><span class="p">)</span></div>
<span class="c1"># Event Generators</span>
<span class="c1">##################</span>
<div class="viewcode-block" id="EventGenerator"><a class="viewcode-back" href="../../../api/classes/events.html#pyo.EventGenerator">[docs]</a><span class="k">class</span> <span class="nc">EventGenerator</span><span class="p">:</span>
<span class="sd">"""</span>
<span class="sd"> Base class for all event generators.</span>
<span class="sd"> This class contains the common behaviours of all event generators.</span>
<span class="sd"> Each EventGenerator contains a particular algorithm that can produce a</span>
<span class="sd"> sequence of values triggered by an Events mecanism for one of its arguments.</span>
<span class="sd"> The EventGenerator allows very flexible control of the algorithm parameters.</span>
<span class="sd"> It can be a single value, another EventGenerator or an audio signal (PyoObject).</span>
<span class="sd"> Arithmetic operations are allowed on EventGenerator. An EventDummy is</span>
<span class="sd"> then created to apply the operation to each value produced by the generator.</span>
<span class="sd"> Arithmetic operators are:</span>
<span class="sd"> +: float, PyoObject or EventGenerator</span>
<span class="sd"> Addition.</span>
<span class="sd"> -: float, PyoObject or EventGenerator</span>
<span class="sd"> Substraction</span>
<span class="sd"> *: float, PyoObject or EventGenerator</span>
<span class="sd"> Multiplication</span>
<span class="sd"> /: float, PyoObject or EventGenerator</span>
<span class="sd"> Division</span>
<span class="sd"> %: float, PyoObject or EventGenerator</span>
<span class="sd"> Modulo (remaining of the division)</span>
<span class="sd"> **: float, PyoObject or EventGenerator</span>
<span class="sd"> Exponent</span>
<span class="sd"> //: float, PyoObject or EventGenerator</span>
<span class="sd"> Quantizer (returns te nearest multiple of its argument)</span>
<span class="sd"> EventGenerator has a number of filter methods that can be applied on</span>
<span class="sd"> any generator to modify its output values. Available filter methods are:</span>
<span class="sd"> floor:</span>
<span class="sd"> Return an EventFilter computing the largest integer less than or</span>
<span class="sd"> equal to its input value.</span>
<span class="sd"> ceil:</span>
<span class="sd"> Return an EventFilter computing the smallest integer greater than</span>
<span class="sd"> or equal to its input value.</span>
<span class="sd"> round:</span>
<span class="sd"> Return an EventFilter computing the nearest integer to its input value.</span>
<span class="sd"> snap:</span>
<span class="sd"> Return an EventFilter which choose the nearest value of its input</span>
<span class="sd"> value in a list of choices.</span>
<span class="sd"> deviate:</span>
<span class="sd"> Return an EventFilter which randomly move, up or down, its input value.</span>
<span class="sd"> clip:</span>
<span class="sd"> Return an EventFilter which clips its input value between predefined</span>
<span class="sd"> limits.</span>
<span class="sd"> scale:</span>
<span class="sd"> Return an EventFilter which maps its input value, in the range 0 to 1,</span>
<span class="sd"> to an output range, with a scaling curve.</span>
<span class="sd"> rescale:</span>
<span class="sd"> Return an EventFilter which maps its input value, given in an input</span>
<span class="sd"> range, to an output range with a scaling curve.</span>
<span class="sd"> iftrue:</span>
<span class="sd"> Return an EventFilter which compares its input value to a comparison</span>
<span class="sd"> value and outputs it if the comparison is True.</span>
<span class="sd"> """</span>
<span class="k">def</span> <span class="fm">__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">generator</span> <span class="o">=</span> <span class="kc">None</span>
<span class="bp">self</span><span class="o">.</span><span class="n">master</span> <span class="o">=</span> <span class="kc">None</span>
<span class="bp">self</span><span class="o">.</span><span class="n">stopEventsWhenDone</span> <span class="o">=</span> <span class="kc">False</span>
<span class="k">def</span> <span class="nf">_inspect_generator</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">generator</span><span class="p">):</span>
<span class="c1"># Inspect the value passed as a generator argument.</span>
<span class="k">if</span> <span class="nb">type</span><span class="p">(</span><span class="n">generator</span><span class="p">)</span> <span class="ow">in</span> <span class="p">[</span><span class="nb">type</span><span class="p">([]),</span> <span class="nb">type</span><span class="p">(())]:</span>
<span class="n">generator</span> <span class="o">=</span> <span class="n">EventSeq</span><span class="p">(</span><span class="n">generator</span><span class="p">)</span>
<span class="k">elif</span> <span class="nb">type</span><span class="p">(</span><span class="n">generator</span><span class="p">)</span> <span class="ow">in</span> <span class="p">[</span><span class="nb">type</span><span class="p">(</span><span class="mi">0</span><span class="p">),</span> <span class="nb">type</span><span class="p">(</span><span class="mf">0.0</span><span class="p">)]:</span>
<span class="n">generator</span> <span class="o">=</span> <span class="n">EventSeq</span><span class="p">([</span><span class="n">generator</span><span class="p">])</span>
<span class="k">return</span> <span class="n">generator</span>
<span class="k">def</span> <span class="nf">_inspect_values</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">values</span><span class="p">):</span>
<span class="c1"># Inspect the value passed as a values argument.</span>
<span class="k">if</span> <span class="ow">not</span> <span class="n">values</span><span class="p">:</span>
<span class="n">values</span> <span class="o">=</span> <span class="p">[</span><span class="mi">0</span><span class="p">]</span>
<span class="k">return</span> <span class="n">values</span>
<span class="k">def</span> <span class="nf">_inspect_occurrences</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">occurrences</span><span class="p">):</span>
<span class="c1"># Inspect the value passed as an occurrences argument.</span>
<span class="k">if</span> <span class="n">occurrences</span> <span class="o"><</span> <span class="mi">1</span><span class="p">:</span>
<span class="n">occurrences</span> <span class="o">=</span> <span class="mi">1</span>
<span class="k">return</span> <span class="n">occurrences</span>
<span class="k">def</span> <span class="nf">_internalGeneratorNextCall</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="c1"># Return the next value of an internal generator.</span>
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">generator</span><span class="p">,</span> <span class="n">EventKey</span><span class="p">):</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">generator</span><span class="o">.</span><span class="n">needToResetTarget</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">generator</span><span class="o">.</span><span class="n">needToResetTarget</span> <span class="o">=</span> <span class="kc">False</span>
<span class="k">try</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">master</span><span class="p">[</span><span class="bp">self</span><span class="o">.</span><span class="n">generator</span><span class="o">.</span><span class="n">getKey</span><span class="p">()]</span><span class="o">.</span><span class="n">reset</span><span class="p">()</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">generator</span><span class="o">.</span><span class="n">getKey</span><span class="p">()</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">master</span><span class="o">.</span><span class="n">getCurrentDict</span><span class="p">():</span>
<span class="k">del</span> <span class="bp">self</span><span class="o">.</span><span class="n">master</span><span class="o">.</span><span class="n">getCurrentDict</span><span class="p">()[</span><span class="bp">self</span><span class="o">.</span><span class="n">generator</span><span class="o">.</span><span class="n">getKey</span><span class="p">()]</span>
<span class="k">except</span><span class="p">:</span>
<span class="k">pass</span>
<span class="n">value</span> <span class="o">=</span> <span class="n">getValueFromAttribute</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">master</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">generator</span><span class="o">.</span><span class="n">getKey</span><span class="p">(),</span> <span class="bp">self</span><span class="o">.</span><span class="n">master</span><span class="o">.</span><span class="n">getCurrentDict</span><span class="p">())</span>
<span class="k">else</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">generator</span><span class="o">.</span><span class="n">setMaster</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">master</span><span class="p">)</span>
<span class="n">value</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">generator</span><span class="o">.</span><span class="n">next</span><span class="p">()</span>
<span class="k">if</span> <span class="n">value</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">generator</span> <span class="o">=</span> <span class="kc">None</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">next</span><span class="p">()</span>
<span class="k">return</span> <span class="n">value</span>
<span class="k">def</span> <span class="nf">_checkValueTypeAndIncrementCount</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="c1"># Final check of the value produced by the generator in the next() method.</span>
<span class="bp">self</span><span class="o">.</span><span class="n">count</span> <span class="o">+=</span> <span class="mi">1</span>
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">value</span><span class="p">,</span> <span class="n">EventGenerator</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">generator</span> <span class="o">=</span> <span class="n">value</span>
<span class="bp">self</span><span class="o">.</span><span class="n">generator</span><span class="o">.</span><span class="n">reset</span><span class="p">()</span>
<span class="n">value</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">next</span><span class="p">()</span>
<span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">value</span><span class="p">,</span> <span class="n">PyoObject</span><span class="p">):</span>
<span class="n">value</span> <span class="o">=</span> <span class="n">value</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="kc">False</span><span class="p">)</span>
<span class="k">return</span> <span class="n">value</span>
<span class="k">def</span> <span class="fm">__add__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">generator</span><span class="p">):</span>
<span class="n">generator</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_inspect_generator</span><span class="p">(</span><span class="n">generator</span><span class="p">)</span>
<span class="k">return</span> <span class="n">EventDummy</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">generator</span><span class="p">,</span> <span class="n">PYO_EVENT_OPERATOR_ADD</span><span class="p">)</span>
<span class="k">def</span> <span class="fm">__sub__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">generator</span><span class="p">):</span>
<span class="n">generator</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_inspect_generator</span><span class="p">(</span><span class="n">generator</span><span class="p">)</span>
<span class="k">return</span> <span class="n">EventDummy</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">generator</span><span class="p">,</span> <span class="n">PYO_EVENT_OPERATOR_SUB</span><span class="p">)</span>
<span class="k">def</span> <span class="fm">__mul__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">generator</span><span class="p">):</span>
<span class="n">generator</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_inspect_generator</span><span class="p">(</span><span class="n">generator</span><span class="p">)</span>
<span class="k">return</span> <span class="n">EventDummy</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">generator</span><span class="p">,</span> <span class="n">PYO_EVENT_OPERATOR_MUL</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">__div__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">generator</span><span class="p">):</span>
<span class="n">generator</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_inspect_generator</span><span class="p">(</span><span class="n">generator</span><span class="p">)</span>
<span class="k">return</span> <span class="n">EventDummy</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">generator</span><span class="p">,</span> <span class="n">PYO_EVENT_OPERATOR_DIV</span><span class="p">)</span>
<span class="k">def</span> <span class="fm">__truediv__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">generator</span><span class="p">):</span>
<span class="n">generator</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_inspect_generator</span><span class="p">(</span><span class="n">generator</span><span class="p">)</span>
<span class="k">return</span> <span class="n">EventDummy</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">generator</span><span class="p">,</span> <span class="n">PYO_EVENT_OPERATOR_DIV</span><span class="p">)</span>
<span class="k">def</span> <span class="fm">__pow__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">generator</span><span class="p">):</span>
<span class="n">generator</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_inspect_generator</span><span class="p">(</span><span class="n">generator</span><span class="p">)</span>
<span class="k">return</span> <span class="n">EventDummy</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">generator</span><span class="p">,</span> <span class="n">PYO_EVENT_OPERATOR_POW</span><span class="p">)</span>
<span class="k">def</span> <span class="fm">__mod__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">generator</span><span class="p">):</span>
<span class="n">generator</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_inspect_generator</span><span class="p">(</span><span class="n">generator</span><span class="p">)</span>
<span class="k">return</span> <span class="n">EventDummy</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">generator</span><span class="p">,</span> <span class="n">PYO_EVENT_OPERATOR_MOD</span><span class="p">)</span>
<span class="k">def</span> <span class="fm">__floordiv__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">generator</span><span class="p">):</span>
<span class="n">generator</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_inspect_generator</span><span class="p">(</span><span class="n">generator</span><span class="p">)</span>
<span class="k">return</span> <span class="n">EventDummy</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">generator</span><span class="p">,</span> <span class="n">PYO_EVENT_OPERATOR_FLR</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">setMaster</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">master</span><span class="p">):</span>
<span class="c1"># Keep a reference of the master player (an Events object).</span>
<span class="bp">self</span><span class="o">.</span><span class="n">master</span> <span class="o">=</span> <span class="n">master</span>
<span class="k">def</span> <span class="nf">copy</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="c1"># Return a deep copy of this generator (used in Events.events()).</span>
<span class="k">return</span> <span class="n">copy</span><span class="o">.</span><span class="n">deepcopy</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">reset</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="c1"># Reset the generator to its init state. Implemented in child objects.</span>
<span class="k">pass</span>
<span class="k">def</span> <span class="nf">next</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="c1"># Internally called to produce the next value. Implemented in child objects.</span>
<span class="k">pass</span>
<span class="k">def</span> <span class="nf">resetEmbeddedGenerator</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="c1"># Recursively resets embedded generators. Used when starting a sequence.</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">generator</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">generator</span><span class="o">.</span><span class="n">resetEmbeddedGenerator</span><span class="p">()</span>
<span class="bp">self</span><span class="o">.</span><span class="n">generator</span><span class="o">.</span><span class="n">reset</span><span class="p">()</span>
<div class="viewcode-block" id="EventGenerator.floor"><a class="viewcode-back" href="../../../api/classes/events.html#pyo.EventGenerator.floor">[docs]</a> <span class="k">def</span> <span class="nf">floor</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Return an EventFilter computing the largest integer less than or</span>
<span class="sd"> equal to its input value.</span>
<span class="sd"> """</span>
<span class="k">return</span> <span class="n">EventFilter</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">PYO_EVENT_FILTER_FLOOR</span><span class="p">)</span></div>
<div class="viewcode-block" id="EventGenerator.ceil"><a class="viewcode-back" href="../../../api/classes/events.html#pyo.EventGenerator.ceil">[docs]</a> <span class="k">def</span> <span class="nf">ceil</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Return an EventFilter computing the smallest integer greater than or</span>
<span class="sd"> equal to its input value.</span>
<span class="sd"> """</span>
<span class="k">return</span> <span class="n">EventFilter</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">PYO_EVENT_FILTER_CEIL</span><span class="p">)</span></div>
<div class="viewcode-block" id="EventGenerator.round"><a class="viewcode-back" href="../../../api/classes/events.html#pyo.EventGenerator.round">[docs]</a> <span class="k">def</span> <span class="nf">round</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Return an EventFilter computing the nearest integer to its input value.</span>
<span class="sd"> If two values are equally close, rounding is done toward the even choice.</span>
<span class="sd"> """</span>
<span class="k">return</span> <span class="n">EventFilter</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">PYO_EVENT_FILTER_ROUND</span><span class="p">)</span></div>
<div class="viewcode-block" id="EventGenerator.abs"><a class="viewcode-back" href="../../../api/classes/events.html#pyo.EventGenerator.abs">[docs]</a> <span class="k">def</span> <span class="nf">abs</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Return an EventFilter computing the absolute value of its input value.</span>
<span class="sd"> """</span>
<span class="k">return</span> <span class="n">EventFilter</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">PYO_EVENT_FILTER_ABS</span><span class="p">)</span></div>
<div class="viewcode-block" id="EventGenerator.snap"><a class="viewcode-back" href="../../../api/classes/events.html#pyo.EventGenerator.snap">[docs]</a> <span class="k">def</span> <span class="nf">snap</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">choice</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Return an EventFilter which choose the nearest value of its input value</span>
<span class="sd"> in the `choice` list.</span>
<span class="sd"> :Args:</span>
<span class="sd"> choice: list of floats</span>
<span class="sd"> Possible values to output.</span>
<span class="sd"> """</span>
<span class="k">return</span> <span class="n">EventFilter</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">PYO_EVENT_FILTER_SNAP</span><span class="p">,</span> <span class="n">choice</span><span class="p">)</span></div>
<div class="viewcode-block" id="EventGenerator.deviate"><a class="viewcode-back" href="../../../api/classes/events.html#pyo.EventGenerator.deviate">[docs]</a> <span class="k">def</span> <span class="nf">deviate</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">depth</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Return an EventFilter which randomly move, up or down, its input value</span>
<span class="sd"> according to the argument `depth`, in percent.</span>
<span class="sd"> :Args:</span>
<span class="sd"> depth: float or PyoObject</span>
<span class="sd"> Percentage of deviation, between 0 and 100.</span>
<span class="sd"> """</span>
<span class="k">return</span> <span class="n">EventFilter</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">PYO_EVENT_FILTER_DEVIATE</span><span class="p">,</span> <span class="n">depth</span><span class="p">)</span></div>
<div class="viewcode-block" id="EventGenerator.clip"><a class="viewcode-back" href="../../../api/classes/events.html#pyo.EventGenerator.clip">[docs]</a> <span class="k">def</span> <span class="nf">clip</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">mini</span><span class="p">,</span> <span class="n">maxi</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Return an EventFilter which clips its input value between the limits</span>
<span class="sd"> `mini` and `maxi`.</span>
<span class="sd"> :Args:</span>
<span class="sd"> mini: float or PyoObject</span>
<span class="sd"> Minimum output value.</span>
<span class="sd"> maxi: float or PyoObject</span>
<span class="sd"> Maximum output value.</span>
<span class="sd"> """</span>
<span class="k">return</span> <span class="n">EventFilter</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">PYO_EVENT_FILTER_CLIP</span><span class="p">,</span> <span class="n">mini</span><span class="p">,</span> <span class="n">maxi</span><span class="p">)</span></div>
<div class="viewcode-block" id="EventGenerator.scale"><a class="viewcode-back" href="../../../api/classes/events.html#pyo.EventGenerator.scale">[docs]</a> <span class="k">def</span> <span class="nf">scale</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">mini</span><span class="p">,</span> <span class="n">maxi</span><span class="p">,</span> <span class="n">expon</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Return an EventFilter which maps its input value, in the range 0 to 1,</span>
<span class="sd"> to an output range, with a scaling curve deternimed bu the `expon` value.</span>
<span class="sd"> :Args:</span>
<span class="sd"> mini: float or PyoObject</span>
<span class="sd"> Minimum output value.</span>
<span class="sd"> maxi: float or PyoObject</span>
<span class="sd"> Maximum output value.</span>
<span class="sd"> expon: float or PyoObject</span>
<span class="sd"> Exponent value, specifies the nature of the scaling curve.</span>
<span class="sd"> Values between 0 and 1 give a logarithmic curve, and values</span>
<span class="sd"> higher than 1 give an exponential curve.</span>
<span class="sd"> """</span>
<span class="k">return</span> <span class="n">EventFilter</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">PYO_EVENT_FILTER_SCALE</span><span class="p">,</span> <span class="n">mini</span><span class="p">,</span> <span class="n">maxi</span><span class="p">,</span> <span class="n">expon</span><span class="p">)</span></div>
<div class="viewcode-block" id="EventGenerator.rescale"><a class="viewcode-back" href="../../../api/classes/events.html#pyo.EventGenerator.rescale">[docs]</a> <span class="k">def</span> <span class="nf">rescale</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">inmin</span><span class="p">,</span> <span class="n">inmax</span><span class="p">,</span> <span class="n">outmin</span><span class="p">,</span> <span class="n">outmax</span><span class="p">,</span> <span class="n">expon</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Return an EventFilter which maps its input value, in the range `inmin`</span>
<span class="sd"> to `inmax`, to an output range, `outmin` to `outmax`, with a scaling</span>
<span class="sd"> curve deternimed bu the `expon` value.</span>
<span class="sd"> :Args:</span>
<span class="sd"> inmin: float or PyoObject</span>
<span class="sd"> Minimum input value.</span>
<span class="sd"> inmax: float or PyoObject</span>
<span class="sd"> Maximum input value.</span>
<span class="sd"> outmin: float or PyoObject</span>
<span class="sd"> Minimum output value.</span>
<span class="sd"> outmax: float or PyoObject</span>
<span class="sd"> Maximum output value.</span>
<span class="sd"> expon: float or PyoObject</span>
<span class="sd"> Exponent value, specifies the nature of the scaling curve.</span>
<span class="sd"> Values between 0 and 1 give a logarithmic curve, and values</span>
<span class="sd"> higher than 1 give an exponential curve.</span>
<span class="sd"> """</span>
<span class="k">return</span> <span class="n">EventFilter</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">PYO_EVENT_FILTER_RESCALE</span><span class="p">,</span> <span class="n">inmin</span><span class="p">,</span> <span class="n">inmax</span><span class="p">,</span> <span class="n">outmin</span><span class="p">,</span> <span class="n">outmax</span><span class="p">,</span> <span class="n">expon</span><span class="p">)</span></div>
<div class="viewcode-block" id="EventGenerator.iftrue"><a class="viewcode-back" href="../../../api/classes/events.html#pyo.EventGenerator.iftrue">[docs]</a> <span class="k">def</span> <span class="nf">iftrue</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">op</span><span class="p">,</span> <span class="n">comp</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Return an EventFilter which compares its input value to the value</span>
<span class="sd"> given to `comp` argument, using the comparison operator `op`. If</span>
<span class="sd"> the result is True, the input value is sent to the output, otherwise,</span>
<span class="sd"> the last valid value is sent again.</span>
<span class="sd"> :Args:</span>
<span class="sd"> op: string</span>
<span class="sd"> The comparison operator. Valid operators are:</span>
<span class="sd"> '<', '<=', '>', '>=', '==', '!='.</span>
<span class="sd"> comp: float or PyoObject</span>
<span class="sd"> Comparison value.</span>
<span class="sd"> """</span>
<span class="k">return</span> <span class="n">EventFilter</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">PYO_EVENT_FILTER_IFTRUE</span><span class="p">,</span> <span class="n">op</span><span class="p">,</span> <span class="n">comp</span><span class="p">)</span></div></div>
<div class="viewcode-block" id="EventDummy"><a class="viewcode-back" href="../../../api/classes/events.html#pyo.EventDummy">[docs]</a><span class="k">class</span> <span class="nc">EventDummy</span><span class="p">(</span><span class="n">EventGenerator</span><span class="p">):</span>
<span class="s2">"An EventGenerator created internally to handle arithmetic on Events."</span>
<span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">generator1</span><span class="p">,</span> <span class="n">generator2</span><span class="p">,</span> <span class="nb">type</span><span class="p">):</span>
<span class="n">EventGenerator</span><span class="o">.</span><span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">generator1</span> <span class="o">=</span> <span class="n">generator1</span>
<span class="bp">self</span><span class="o">.</span><span class="n">generator2</span> <span class="o">=</span> <span class="n">generator2</span>
<span class="bp">self</span><span class="o">.</span><span class="n">type</span> <span class="o">=</span> <span class="nb">type</span>
<span class="k">def</span> <span class="nf">next</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">generator1</span><span class="o">.</span><span class="n">setMaster</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">master</span><span class="p">)</span>
<span class="n">v1</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">generator1</span><span class="o">.</span><span class="n">next</span><span class="p">()</span>
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">generator2</span><span class="p">,</span> <span class="n">PyoObject</span><span class="p">):</span>
<span class="n">v2</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">generator2</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="kc">False</span><span class="p">)</span>
<span class="k">else</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">generator2</span><span class="o">.</span><span class="n">setMaster</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">master</span><span class="p">)</span>
<span class="n">v2</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">generator2</span><span class="o">.</span><span class="n">next</span><span class="p">()</span>
<span class="k">if</span> <span class="n">v1</span> <span class="ow">is</span> <span class="kc">None</span> <span class="ow">or</span> <span class="n">v2</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
<span class="k">return</span> <span class="kc">None</span>
<span class="k">else</span><span class="p">:</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">type</span> <span class="o">==</span> <span class="n">PYO_EVENT_OPERATOR_ADD</span><span class="p">:</span>
<span class="k">return</span> <span class="n">v1</span> <span class="o">+</span> <span class="n">v2</span>
<span class="k">elif</span> <span class="bp">self</span><span class="o">.</span><span class="n">type</span> <span class="o">==</span> <span class="n">PYO_EVENT_OPERATOR_SUB</span><span class="p">:</span>
<span class="k">return</span> <span class="n">v1</span> <span class="o">-</span> <span class="n">v2</span>
<span class="k">elif</span> <span class="bp">self</span><span class="o">.</span><span class="n">type</span> <span class="o">==</span> <span class="n">PYO_EVENT_OPERATOR_MUL</span><span class="p">:</span>
<span class="k">return</span> <span class="n">v1</span> <span class="o">*</span> <span class="n">v2</span>
<span class="k">elif</span> <span class="bp">self</span><span class="o">.</span><span class="n">type</span> <span class="o">==</span> <span class="n">PYO_EVENT_OPERATOR_DIV</span><span class="p">:</span>
<span class="k">return</span> <span class="n">v1</span> <span class="o">/</span> <span class="n">v2</span>
<span class="k">elif</span> <span class="bp">self</span><span class="o">.</span><span class="n">type</span> <span class="o">==</span> <span class="n">PYO_EVENT_OPERATOR_POW</span><span class="p">:</span>
<span class="k">return</span> <span class="n">v1</span> <span class="o">**</span> <span class="n">v2</span>
<span class="k">elif</span> <span class="bp">self</span><span class="o">.</span><span class="n">type</span> <span class="o">==</span> <span class="n">PYO_EVENT_OPERATOR_MOD</span><span class="p">:</span>
<span class="k">return</span> <span class="n">v1</span> <span class="o">%</span> <span class="n">v2</span>
<span class="k">elif</span> <span class="bp">self</span><span class="o">.</span><span class="n">type</span> <span class="o">==</span> <span class="n">PYO_EVENT_OPERATOR_FLR</span><span class="p">:</span>
<span class="k">return</span> <span class="n">math</span><span class="o">.</span><span class="n">floor</span><span class="p">(</span><span class="n">v1</span> <span class="o">/</span> <span class="n">v2</span> <span class="o">+</span> <span class="mf">0.5</span><span class="p">)</span> <span class="o">*</span> <span class="n">v2</span></div>
<div class="viewcode-block" id="EventFilter"><a class="viewcode-back" href="../../../api/classes/events.html#pyo.EventFilter">[docs]</a><span class="k">class</span> <span class="nc">EventFilter</span><span class="p">(</span><span class="n">EventGenerator</span><span class="p">):</span>
<span class="s2">"An EventGenerator created internally to handle simple filter on Events."</span>
<span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">generator</span><span class="p">,</span> <span class="nb">type</span><span class="p">,</span> <span class="o">*</span><span class="n">args</span><span class="p">):</span>
<span class="n">EventGenerator</span><span class="o">.</span><span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">generator</span> <span class="o">=</span> <span class="n">generator</span>
<span class="bp">self</span><span class="o">.</span><span class="n">type</span> <span class="o">=</span> <span class="nb">type</span>
<span class="bp">self</span><span class="o">.</span><span class="n">args</span> <span class="o">=</span> <span class="n">args</span>
<span class="bp">self</span><span class="o">.</span><span class="n">lastValue</span> <span class="o">=</span> <span class="mf">0.0</span>
<span class="k">def</span> <span class="nf">next</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">generator</span><span class="o">.</span><span class="n">setMaster</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">master</span><span class="p">)</span>
<span class="n">value</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">generator</span><span class="o">.</span><span class="n">next</span><span class="p">()</span>
<span class="k">if</span> <span class="n">value</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
<span class="k">return</span> <span class="kc">None</span>
<span class="n">args</span> <span class="o">=</span> <span class="p">[]</span>
<span class="k">for</span> <span class="n">arg</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">args</span><span class="p">:</span>
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">arg</span><span class="p">,</span> <span class="n">PyoObject</span><span class="p">):</span>
<span class="n">args</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">arg</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="kc">False</span><span class="p">))</span>
<span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">arg</span><span class="p">,</span> <span class="n">EventGenerator</span><span class="p">):</span>
<span class="n">arg</span><span class="o">.</span><span class="n">setMaster</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">master</span><span class="p">)</span>
<span class="n">args</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">arg</span><span class="o">.</span><span class="n">next</span><span class="p">())</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">args</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">arg</span><span class="p">)</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">type</span> <span class="o">==</span> <span class="n">PYO_EVENT_FILTER_FLOOR</span><span class="p">:</span>
<span class="k">return</span> <span class="n">math</span><span class="o">.</span><span class="n">floor</span><span class="p">(</span><span class="n">value</span><span class="p">)</span>
<span class="k">elif</span> <span class="bp">self</span><span class="o">.</span><span class="n">type</span> <span class="o">==</span> <span class="n">PYO_EVENT_FILTER_CEIL</span><span class="p">:</span>
<span class="k">return</span> <span class="n">math</span><span class="o">.</span><span class="n">ceil</span><span class="p">(</span><span class="n">value</span><span class="p">)</span>
<span class="k">elif</span> <span class="bp">self</span><span class="o">.</span><span class="n">type</span> <span class="o">==</span> <span class="n">PYO_EVENT_FILTER_ROUND</span><span class="p">:</span>
<span class="k">return</span> <span class="nb">round</span><span class="p">(</span><span class="n">value</span><span class="p">)</span>
<span class="k">elif</span> <span class="bp">self</span><span class="o">.</span><span class="n">type</span> <span class="o">==</span> <span class="n">PYO_EVENT_FILTER_ABS</span><span class="p">:</span>
<span class="k">return</span> <span class="nb">abs</span><span class="p">(</span><span class="n">value</span><span class="p">)</span>
<span class="k">elif</span> <span class="bp">self</span><span class="o">.</span><span class="n">type</span> <span class="o">==</span> <span class="n">PYO_EVENT_FILTER_SNAP</span><span class="p">:</span>
<span class="k">return</span> <span class="nb">min</span><span class="p">(</span><span class="n">args</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="n">key</span><span class="o">=</span><span class="k">lambda</span> <span class="n">x</span><span class="p">:</span> <span class="nb">abs</span><span class="p">(</span><span class="n">x</span> <span class="o">-</span> <span class="n">value</span><span class="p">))</span>
<span class="k">elif</span> <span class="bp">self</span><span class="o">.</span><span class="n">type</span> <span class="o">==</span> <span class="n">PYO_EVENT_FILTER_DEVIATE</span><span class="p">:</span>
<span class="n">depth</span> <span class="o">=</span> <span class="n">args</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">*</span> <span class="mf">0.01</span>
<span class="k">return</span> <span class="n">value</span> <span class="o">*</span> <span class="n">random</span><span class="o">.</span><span class="n">uniform</span><span class="p">(</span><span class="mf">1.0</span> <span class="o">-</span> <span class="n">depth</span><span class="p">,</span> <span class="mf">1.0</span> <span class="o">+</span> <span class="n">depth</span><span class="p">)</span>
<span class="k">elif</span> <span class="bp">self</span><span class="o">.</span><span class="n">type</span> <span class="o">==</span> <span class="n">PYO_EVENT_FILTER_CLIP</span><span class="p">:</span>
<span class="k">if</span> <span class="n">value</span> <span class="o"><</span> <span class="n">args</span><span class="p">[</span><span class="mi">0</span><span class="p">]:</span>
<span class="n">value</span> <span class="o">=</span> <span class="n">args</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
<span class="k">elif</span> <span class="n">value</span> <span class="o">></span> <span class="n">args</span><span class="p">[</span><span class="mi">1</span><span class="p">]:</span>
<span class="n">value</span> <span class="o">=</span> <span class="n">args</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span>
<span class="k">return</span> <span class="n">value</span>
<span class="k">elif</span> <span class="bp">self</span><span class="o">.</span><span class="n">type</span> <span class="o">==</span> <span class="n">PYO_EVENT_FILTER_SCALE</span><span class="p">:</span>
<span class="k">if</span> <span class="n">value</span> <span class="o"><</span> <span class="mf">0.0</span><span class="p">:</span>
<span class="n">value</span> <span class="o">=</span> <span class="mf">0.0</span>
<span class="k">elif</span> <span class="n">value</span> <span class="o">></span> <span class="mf">1.0</span><span class="p">:</span>
<span class="n">value</span> <span class="o">=</span> <span class="mf">1.0</span>
<span class="n">value</span> <span class="o">=</span> <span class="n">value</span> <span class="o">**</span> <span class="n">args</span><span class="p">[</span><span class="mi">2</span><span class="p">]</span>
<span class="k">return</span> <span class="n">value</span> <span class="o">*</span> <span class="p">(</span><span class="n">args</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span> <span class="o">-</span> <span class="n">args</span><span class="p">[</span><span class="mi">0</span><span class="p">])</span> <span class="o">+</span> <span class="n">args</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
<span class="k">elif</span> <span class="bp">self</span><span class="o">.</span><span class="n">type</span> <span class="o">==</span> <span class="n">PYO_EVENT_FILTER_RESCALE</span><span class="p">:</span>
<span class="k">if</span> <span class="n">value</span> <span class="o"><</span> <span class="n">args</span><span class="p">[</span><span class="mi">0</span><span class="p">]:</span>
<span class="n">value</span> <span class="o">=</span> <span class="n">args</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
<span class="k">elif</span> <span class="n">value</span> <span class="o">></span> <span class="n">args</span><span class="p">[</span><span class="mi">1</span><span class="p">]:</span>
<span class="n">value</span> <span class="o">=</span> <span class="n">args</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span>
<span class="n">value</span> <span class="o">=</span> <span class="p">(</span><span class="n">value</span> <span class="o">-</span> <span class="n">args</span><span class="p">[</span><span class="mi">0</span><span class="p">])</span> <span class="o">/</span> <span class="p">(</span><span class="n">args</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span> <span class="o">-</span> <span class="n">args</span><span class="p">[</span><span class="mi">0</span><span class="p">])</span>
<span class="n">value</span> <span class="o">=</span> <span class="n">value</span> <span class="o">**</span> <span class="n">args</span><span class="p">[</span><span class="mi">4</span><span class="p">]</span>
<span class="k">return</span> <span class="n">value</span> <span class="o">*</span> <span class="p">(</span><span class="n">args</span><span class="p">[</span><span class="mi">3</span><span class="p">]</span> <span class="o">-</span> <span class="n">args</span><span class="p">[</span><span class="mi">2</span><span class="p">])</span> <span class="o">+</span> <span class="n">args</span><span class="p">[</span><span class="mi">2</span><span class="p">]</span>
<span class="k">elif</span> <span class="bp">self</span><span class="o">.</span><span class="n">type</span> <span class="o">==</span> <span class="n">PYO_EVENT_FILTER_IFTRUE</span><span class="p">:</span>
<span class="k">if</span> <span class="n">args</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">==</span> <span class="s2">"<"</span><span class="p">:</span>
<span class="n">istrue</span> <span class="o">=</span> <span class="n">value</span> <span class="o"><</span> <span class="n">args</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span>
<span class="k">elif</span> <span class="n">args</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">==</span> <span class="s2">"<="</span><span class="p">:</span>
<span class="n">istrue</span> <span class="o">=</span> <span class="n">value</span> <span class="o"><=</span> <span class="n">args</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span>
<span class="k">elif</span> <span class="n">args</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">==</span> <span class="s2">">"</span><span class="p">:</span>
<span class="n">istrue</span> <span class="o">=</span> <span class="n">value</span> <span class="o">></span> <span class="n">args</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span>
<span class="k">elif</span> <span class="n">args</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">==</span> <span class="s2">">="</span><span class="p">:</span>
<span class="n">istrue</span> <span class="o">=</span> <span class="n">value</span> <span class="o">>=</span> <span class="n">args</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span>
<span class="k">elif</span> <span class="n">args</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">==</span> <span class="s2">"=="</span><span class="p">:</span>
<span class="n">istrue</span> <span class="o">=</span> <span class="n">value</span> <span class="o">==</span> <span class="n">args</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span>
<span class="k">elif</span> <span class="n">args</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">==</span> <span class="s2">"!="</span><span class="p">:</span>
<span class="n">istrue</span> <span class="o">=</span> <span class="n">value</span> <span class="o">!=</span> <span class="n">args</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span>
<span class="k">if</span> <span class="n">istrue</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">lastValue</span> <span class="o">=</span> <span class="n">value</span>
<span class="k">return</span> <span class="n">value</span>
<span class="k">else</span><span class="p">:</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">lastValue</span></div>
<span class="c1">###################</span>
<div class="viewcode-block" id="EventKey"><a class="viewcode-back" href="../../../api/classes/events.html#pyo.EventKey">[docs]</a><span class="k">class</span> <span class="nc">EventKey</span><span class="p">(</span><span class="n">EventGenerator</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> An EventGenerator that allow to retrieve the value of another parameter.</span>
<span class="sd"> EventKey returns the current value of another parameter of the Events</span>
<span class="sd"> object where it is used. From there, other processes can be applied</span>
<span class="sd"> (arithmetics, filters) to transform this value.</span>
<span class="sd"> EventKey can also read parameter values from another Events object when</span>
<span class="sd"> one is passed as `master` argument.</span>
<span class="sd"> :Args:</span>
<span class="sd"> key: string</span>
<span class="sd"> The name of the parameter to read from.</span>
<span class="sd"> master: Events, optional</span>
<span class="sd"> The Events object from which to read the parameter value. If</span>
<span class="sd"> None (the default), the current Events object is used.</span>
<span class="sd"> >>> s = Server().boot()</span>
<span class="sd"> >>> s.start()</span>
<span class="sd"> >>> # The lower the pitch value, the louder is the note.</span>
<span class="sd"> >>> dbkey = EventKey("midinote").rescale(48,84,-3,-32,1)</span>
<span class="sd"> >>> e = Events(midinote=list(range(48,84,2)), beat=1/4., db=dbkey).play()</span>
<span class="sd"> """</span>
<span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">key</span><span class="p">,</span> <span class="n">master</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
<span class="n">EventGenerator</span><span class="o">.</span><span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">key</span> <span class="o">=</span> <span class="n">key</span>
<span class="bp">self</span><span class="o">.</span><span class="n">needToResetTarget</span> <span class="o">=</span> <span class="kc">False</span>
<span class="bp">self</span><span class="o">.</span><span class="n">externalMaster</span> <span class="o">=</span> <span class="n">master</span>
<div class="viewcode-block" id="EventKey.getKey"><a class="viewcode-back" href="../../../api/classes/events.html#pyo.EventKey.getKey">[docs]</a> <span class="k">def</span> <span class="nf">getKey</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Returns the key, as a string, of the parameter to read from.</span>
<span class="sd"> """</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">key</span></div>
<span class="k">def</span> <span class="nf">reset</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">needToResetTarget</span> <span class="o">=</span> <span class="kc">True</span>
<span class="k">def</span> <span class="nf">next</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">externalMaster</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
<span class="k">return</span> <span class="n">getValueFromAttribute</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">master</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">getKey</span><span class="p">(),</span> <span class="bp">self</span><span class="o">.</span><span class="n">master</span><span class="o">.</span><span class="n">getCurrentDict</span><span class="p">())</span>
<span class="k">else</span><span class="p">:</span>
<span class="k">return</span> <span class="n">getValueFromAttribute</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">externalMaster</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">getKey</span><span class="p">(),</span> <span class="bp">self</span><span class="o">.</span><span class="n">externalMaster</span><span class="o">.</span><span class="n">getCurrentDict</span><span class="p">())</span></div>
<span class="c1">###################</span>
<div class="viewcode-block" id="EventSeq"><a class="viewcode-back" href="../../../api/classes/events.html#pyo.EventSeq">[docs]</a><span class="k">class</span> <span class="nc">EventSeq</span><span class="p">(</span><span class="n">EventGenerator</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Plays through an entire list of values many times.</span>
<span class="sd"> EventSeq will loop over its list of values a number of times</span>
<span class="sd"> defined by the occurrences argument.</span>
<span class="sd"> :Args:</span>
<span class="sd"> values: EventScale or list</span>
<span class="sd"> List of values to loop over. Values in list can be floats,</span>
<span class="sd"> PyoObject or other EventGenerator.</span>
<span class="sd"> occurrences: int, optional</span>
<span class="sd"> Number of times the sequence is entirely played in loop.</span>
<span class="sd"> Defaults to inf (infinite).</span>
<span class="sd"> stopEventsWhenDone: bool, optional</span>
<span class="sd"> If True, the Events playback will stop if this generator reaches</span>
<span class="sd"> its end. If False, the Events will ignore this signal and probably</span>
<span class="sd"> get None as value for the given parameter. It's the user</span>
<span class="sd"> responsability to handle this case correctly. Defaults to True.</span>
<span class="sd"> .. note::</span>
<span class="sd"> If an Events argument receives a single value or a list, it will be</span>
<span class="sd"> automatically converted to an EventSeq.</span>
<span class="sd"> >>> s = Server().boot()</span>
<span class="sd"> >>> s.start()</span>
<span class="sd"> >>> e = Events(freq=EventSeq(midiToHz([60, 64, 67, 72])), beat=1/4.).play()</span>
<span class="sd"> """</span>
<span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">values</span><span class="p">,</span> <span class="n">occurrences</span><span class="o">=</span><span class="n">inf</span><span class="p">,</span> <span class="n">stopEventsWhenDone</span><span class="o">=</span><span class="kc">True</span><span class="p">):</span>
<span class="n">EventGenerator</span><span class="o">.</span><span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">values</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_inspect_values</span><span class="p">(</span><span class="n">values</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">occurrences</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_inspect_occurrences</span><span class="p">(</span><span class="n">occurrences</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">length</span> <span class="o">=</span> <span class="nb">len</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">values</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">stopEventsWhenDone</span> <span class="o">=</span> <span class="n">stopEventsWhenDone</span>
<span class="bp">self</span><span class="o">.</span><span class="n">reset</span><span class="p">()</span>
<span class="k">def</span> <span class="fm">__len__</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">length</span> <span class="o">*</span> <span class="bp">self</span><span class="o">.</span><span class="n">occurrences</span>
<span class="k">def</span> <span class="nf">reset</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">generator</span> <span class="o">=</span> <span class="kc">None</span>
<span class="bp">self</span><span class="o">.</span><span class="n">count</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">completed</span> <span class="o">=</span> <span class="mi">0</span>
<span class="k">def</span> <span class="nf">next</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">generator</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_internalGeneratorNextCall</span><span class="p">()</span>
<span class="bp">self</span><span class="o">.</span><span class="n">length</span> <span class="o">=</span> <span class="nb">len</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">values</span><span class="p">)</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">count</span> <span class="o"><</span> <span class="bp">self</span><span class="o">.</span><span class="n">length</span><span class="p">:</span>
<span class="n">value</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">values</span><span class="p">[</span><span class="bp">self</span><span class="o">.</span><span class="n">count</span><span class="p">]</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_checkValueTypeAndIncrementCount</span><span class="p">(</span><span class="n">value</span><span class="p">)</span>
<span class="k">else</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">completed</span> <span class="o">+=</span> <span class="mi">1</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">completed</span> <span class="o">>=</span> <span class="bp">self</span><span class="o">.</span><span class="n">occurrences</span><span class="p">:</span>
<span class="k">return</span> <span class="kc">None</span>
<span class="k">else</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">count</span> <span class="o">=</span> <span class="mi">0</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">next</span><span class="p">()</span></div>
<div class="viewcode-block" id="EventSlide"><a class="viewcode-back" href="../../../api/classes/events.html#pyo.EventSlide">[docs]</a><span class="k">class</span> <span class="nc">EventSlide</span><span class="p">(</span><span class="n">EventGenerator</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Plays overlapping segments from a list of values.</span>
<span class="sd"> EventSlide will play a segment of length `segment` from startpos,</span>
<span class="sd"> then another segment with a start position incremented by `step`,</span>
<span class="sd"> and so on.</span>
<span class="sd"> :Args:</span>
<span class="sd"> values: EventScale or list</span>
<span class="sd"> List of values to read. Values in list can be floats,</span>
<span class="sd"> PyoObject or other EventGenerator.</span>
<span class="sd"> segment: int, PyoObject or EventGenerator</span>
<span class="sd"> Number of values of each segment.</span>
<span class="sd"> step: int, PyoObject or EventGenerator</span>
<span class="sd"> How far to step the start of each segment from the previous. A</span>
<span class="sd"> negative value will step backward.</span>
<span class="sd"> startpos: int, optional</span>
<span class="sd"> The start position of the first segment. A negative value sets</span>
<span class="sd"> the position backward starting from the end of the list.</span>
<span class="sd"> Defaults to 0.</span>
<span class="sd"> wraparound: bool, optional</span>
<span class="sd"> If 'wraparound' if True, indexing wraps around if goes past the</span>
<span class="sd"> beginning or the end of the list. If False, the playback stops</span>
<span class="sd"> if it goes outside the list bounds. Defaults to True.</span>
<span class="sd"> occurrences: int, optional</span>
<span class="sd"> Number of entire segments to play. Defaults to inf (infinite).</span>
<span class="sd"> stopEventsWhenDone: bool, optional</span>
<span class="sd"> If True, the Events playback will stop if this generator reaches</span>
<span class="sd"> its end. If False, the Events will ignore this signal and probably</span>
<span class="sd"> get None as value for the given parameter. It's the user</span>
<span class="sd"> responsability to handle this case correctly. Defaults to True.</span>
<span class="sd"> >>> s = Server().boot()</span>
<span class="sd"> >>> s.start()</span>
<span class="sd"> >>> scl = [5.00, 5.02, 5.03, 5.05, 5.07, 5.08, 5.10, 6.00]</span>
<span class="sd"> >>> e = Events(degree=EventSlide(scl, 3, 1, 0), beat = 1/4., db = -6).play()</span>
<span class="sd"> """</span>
<span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">values</span><span class="p">,</span> <span class="n">segment</span><span class="p">,</span> <span class="n">step</span><span class="p">,</span> <span class="n">startpos</span><span class="o">=</span><span class="mi">0</span><span class="p">,</span> <span class="n">wraparound</span><span class="o">=</span><span class="kc">True</span><span class="p">,</span> <span class="n">occurrences</span><span class="o">=</span><span class="n">inf</span><span class="p">,</span> <span class="n">stopEventsWhenDone</span><span class="o">=</span><span class="kc">True</span><span class="p">):</span>
<span class="n">EventGenerator</span><span class="o">.</span><span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">values</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_inspect_values</span><span class="p">(</span><span class="n">values</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">occurrences</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_inspect_occurrences</span><span class="p">(</span><span class="n">occurrences</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">wraparound</span> <span class="o">=</span> <span class="n">wraparound</span>
<span class="bp">self</span><span class="o">.</span><span class="n">length</span> <span class="o">=</span> <span class="nb">len</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">values</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">stopEventsWhenDone</span> <span class="o">=</span> <span class="n">stopEventsWhenDone</span>
<span class="bp">self</span><span class="o">.</span><span class="n">segment</span> <span class="o">=</span> <span class="n">segment</span>
<span class="bp">self</span><span class="o">.</span><span class="n">lastSegment</span> <span class="o">=</span> <span class="mi">1</span>
<span class="bp">self</span><span class="o">.</span><span class="n">step</span> <span class="o">=</span> <span class="n">step</span>
<span class="bp">self</span><span class="o">.</span><span class="n">lastStep</span> <span class="o">=</span> <span class="mi">1</span>
<span class="k">if</span> <span class="n">startpos</span> <span class="o"><</span> <span class="mi">0</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">startpos</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">length</span> <span class="o">+</span> <span class="n">startpos</span>
<span class="k">else</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">startpos</span> <span class="o">=</span> <span class="n">startpos</span>
<span class="bp">self</span><span class="o">.</span><span class="n">reset</span><span class="p">()</span>
<span class="k">def</span> <span class="fm">__len__</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">segment</span> <span class="o">*</span> <span class="bp">self</span><span class="o">.</span><span class="n">occurrences</span>
<span class="k">def</span> <span class="nf">reset</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">generator</span> <span class="o">=</span> <span class="kc">None</span>
<span class="bp">self</span><span class="o">.</span><span class="n">count</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">completed</span> <span class="o">=</span> <span class="mi">0</span>
<span class="bp">self</span><span class="o">.</span><span class="n">start</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">startpos</span>
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">segment</span><span class="p">,</span> <span class="n">EventGenerator</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">segment</span><span class="o">.</span><span class="n">reset</span><span class="p">()</span>
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">step</span><span class="p">,</span> <span class="n">EventGenerator</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">step</span><span class="o">.</span><span class="n">reset</span><span class="p">()</span>
<span class="k">def</span> <span class="nf">getStepValue</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">step</span><span class="p">,</span> <span class="n">PyoObject</span><span class="p">):</span>
<span class="n">value</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">step</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="kc">False</span><span class="p">)</span>
<span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">step</span><span class="p">,</span> <span class="n">EventGenerator</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">step</span><span class="o">.</span><span class="n">setMaster</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">master</span><span class="p">)</span>
<span class="n">value</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">step</span><span class="o">.</span><span class="n">next</span><span class="p">()</span>
<span class="k">if</span> <span class="n">value</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">stopEventsWhenDone</span><span class="p">:</span>
<span class="k">return</span> <span class="kc">None</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">value</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">lastStep</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">value</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">step</span>
<span class="k">if</span> <span class="nb">abs</span><span class="p">(</span><span class="n">value</span><span class="p">)</span> <span class="o">>=</span> <span class="bp">self</span><span class="o">.</span><span class="n">length</span><span class="p">:</span>
<span class="k">if</span> <span class="n">value</span> <span class="o"><</span> <span class="mi">0</span><span class="p">:</span>
<span class="n">value</span> <span class="o">=</span> <span class="o">-</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">length</span> <span class="o">-</span> <span class="mi">1</span><span class="p">)</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">value</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">length</span> <span class="o">-</span> <span class="mi">1</span>
<span class="bp">self</span><span class="o">.</span><span class="n">lastStep</span> <span class="o">=</span> <span class="nb">int</span><span class="p">(</span><span class="n">value</span><span class="p">)</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">lastStep</span>
<span class="k">def</span> <span class="nf">getSegmentValue</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">segment</span><span class="p">,</span> <span class="n">PyoObject</span><span class="p">):</span>
<span class="n">value</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">segment</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="kc">False</span><span class="p">)</span>
<span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">segment</span><span class="p">,</span> <span class="n">EventGenerator</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">segment</span><span class="o">.</span><span class="n">setMaster</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">master</span><span class="p">)</span>
<span class="n">value</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">segment</span><span class="o">.</span><span class="n">next</span><span class="p">()</span>
<span class="k">if</span> <span class="n">value</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">stopEventsWhenDone</span><span class="p">:</span>
<span class="k">return</span> <span class="kc">None</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">value</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">lastSegment</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">value</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">segment</span>
<span class="k">if</span> <span class="n">value</span> <span class="o"><</span> <span class="mi">1</span><span class="p">:</span>
<span class="n">value</span> <span class="o">=</span> <span class="mi">1</span>
<span class="bp">self</span><span class="o">.</span><span class="n">lastSegment</span> <span class="o">=</span> <span class="nb">int</span><span class="p">(</span><span class="n">value</span><span class="p">)</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">lastSegment</span>
<span class="k">def</span> <span class="nf">next</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">generator</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_internalGeneratorNextCall</span><span class="p">()</span>
<span class="bp">self</span><span class="o">.</span><span class="n">length</span> <span class="o">=</span> <span class="nb">len</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">values</span><span class="p">)</span>
<span class="n">segment</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">getSegmentValue</span><span class="p">()</span>
<span class="n">step</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">getStepValue</span><span class="p">()</span>
<span class="k">if</span> <span class="n">segment</span> <span class="ow">is</span> <span class="kc">None</span> <span class="ow">or</span> <span class="n">step</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
<span class="k">return</span> <span class="kc">None</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">count</span> <span class="o"><</span> <span class="n">segment</span><span class="p">:</span>
<span class="k">if</span> <span class="n">step</span> <span class="o"><</span> <span class="mi">0</span><span class="p">:</span>
<span class="n">position</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">start</span> <span class="o">-</span> <span class="bp">self</span><span class="o">.</span><span class="n">count</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">position</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">start</span> <span class="o">+</span> <span class="bp">self</span><span class="o">.</span><span class="n">count</span>
<span class="k">if</span> <span class="n">position</span> <span class="o"><</span> <span class="mi">0</span><span class="p">:</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">wraparound</span><span class="p">:</span>
<span class="n">position</span> <span class="o">+=</span> <span class="bp">self</span><span class="o">.</span><span class="n">length</span>
<span class="k">else</span><span class="p">:</span>
<span class="k">return</span> <span class="kc">None</span>
<span class="k">elif</span> <span class="n">position</span> <span class="o">>=</span> <span class="bp">self</span><span class="o">.</span><span class="n">length</span><span class="p">:</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">wraparound</span><span class="p">:</span>
<span class="n">position</span> <span class="o">-=</span> <span class="bp">self</span><span class="o">.</span><span class="n">length</span>
<span class="k">else</span><span class="p">:</span>
<span class="k">return</span> <span class="kc">None</span>
<span class="n">value</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">values</span><span class="p">[</span><span class="n">position</span><span class="p">]</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_checkValueTypeAndIncrementCount</span><span class="p">(</span><span class="n">value</span><span class="p">)</span>
<span class="k">else</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">completed</span> <span class="o">+=</span> <span class="mi">1</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">completed</span> <span class="o">>=</span> <span class="bp">self</span><span class="o">.</span><span class="n">occurrences</span><span class="p">:</span>
<span class="k">return</span> <span class="kc">None</span>
<span class="k">else</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">count</span> <span class="o">=</span> <span class="mi">0</span>
<span class="bp">self</span><span class="o">.</span><span class="n">start</span> <span class="o">+=</span> <span class="n">step</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">start</span> <span class="o"><</span> <span class="mi">0</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">start</span> <span class="o">+=</span> <span class="bp">self</span><span class="o">.</span><span class="n">length</span>
<span class="k">elif</span> <span class="bp">self</span><span class="o">.</span><span class="n">start</span> <span class="o">>=</span> <span class="bp">self</span><span class="o">.</span><span class="n">length</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">start</span> <span class="o">-=</span> <span class="bp">self</span><span class="o">.</span><span class="n">length</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">next</span><span class="p">()</span></div>
<div class="viewcode-block" id="EventIndex"><a class="viewcode-back" href="../../../api/classes/events.html#pyo.EventIndex">[docs]</a><span class="k">class</span> <span class="nc">EventIndex</span><span class="p">(</span><span class="n">EventGenerator</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Plays values from a list based on a position index.</span>
<span class="sd"> :Args:</span>
<span class="sd"> values: EventScale or list</span>
<span class="sd"> List of values to read. Values in list can be floats,</span>
<span class="sd"> PyoObject or other EventGenerator.</span>
<span class="sd"> index: int, PyoObject or EventGenerator</span>
<span class="sd"> Position to read in the list, starting at 0.</span>
<span class="sd"> occurrences: int, optional</span>
<span class="sd"> Number of values to play. Defaults to inf (infinite).</span>
<span class="sd"> stopEventsWhenDone: bool, optional</span>
<span class="sd"> If True, the Events playback will stop if this generator reaches</span>
<span class="sd"> its end. If False, the Events will ignore this signal and probably</span>
<span class="sd"> get None as value for the given parameter. It's the user</span>
<span class="sd"> responsability to handle this case correctly. Defaults to True.</span>
<span class="sd"> >>> s = Server().boot()</span>
<span class="sd"> >>> s.start()</span>
<span class="sd"> >>> scl = [5.00, 5.02, 5.03, 5.05, 5.07, 5.08, 5.10, 6.00]</span>
<span class="sd"> >>> arp = EventSeq([0, 2, 4, 2, 1, 3, 5, 3, 1, 6, 4, 1])</span>
<span class="sd"> >>> e = Events(degree = EventIndex(scl, arp), beat = 1/4., db = -6).play()</span>
<span class="sd"> """</span>
<span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">values</span><span class="p">,</span> <span class="n">index</span><span class="p">,</span> <span class="n">occurrences</span><span class="o">=</span><span class="n">inf</span><span class="p">,</span> <span class="n">stopEventsWhenDone</span><span class="o">=</span><span class="kc">True</span><span class="p">):</span>
<span class="n">EventGenerator</span><span class="o">.</span><span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">values</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_inspect_values</span><span class="p">(</span><span class="n">values</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">occurrences</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_inspect_occurrences</span><span class="p">(</span><span class="n">occurrences</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">index</span> <span class="o">=</span> <span class="n">index</span>
<span class="bp">self</span><span class="o">.</span><span class="n">lastIndex</span> <span class="o">=</span> <span class="mi">0</span>
<span class="bp">self</span><span class="o">.</span><span class="n">length</span> <span class="o">=</span> <span class="nb">len</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">values</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">stopEventsWhenDone</span> <span class="o">=</span> <span class="n">stopEventsWhenDone</span>
<span class="bp">self</span><span class="o">.</span><span class="n">reset</span><span class="p">()</span>
<span class="k">def</span> <span class="fm">__len__</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">occurrences</span>
<span class="k">def</span> <span class="nf">reset</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">generator</span> <span class="o">=</span> <span class="kc">None</span>
<span class="bp">self</span><span class="o">.</span><span class="n">count</span> <span class="o">=</span> <span class="mi">0</span>
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">index</span><span class="p">,</span> <span class="n">EventGenerator</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">index</span><span class="o">.</span><span class="n">reset</span><span class="p">()</span>
<span class="k">def</span> <span class="nf">getIndexValue</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">index</span><span class="p">,</span> <span class="n">PyoObject</span><span class="p">):</span>
<span class="n">value</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">index</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="kc">False</span><span class="p">)</span>
<span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">index</span><span class="p">,</span> <span class="n">EventGenerator</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">index</span><span class="o">.</span><span class="n">setMaster</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">master</span><span class="p">)</span>
<span class="n">value</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">index</span><span class="o">.</span><span class="n">next</span><span class="p">()</span>
<span class="k">if</span> <span class="n">value</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">stopEventsWhenDone</span><span class="p">:</span>
<span class="k">return</span> <span class="kc">None</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">value</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">lastIndex</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">value</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">index</span>
<span class="k">if</span> <span class="n">value</span> <span class="o"><</span> <span class="mi">0</span><span class="p">:</span>
<span class="n">value</span> <span class="o">=</span> <span class="mi">0</span>
<span class="k">elif</span> <span class="n">value</span> <span class="o">>=</span> <span class="bp">self</span><span class="o">.</span><span class="n">length</span><span class="p">:</span>
<span class="n">value</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">length</span> <span class="o">-</span> <span class="mi">1</span>
<span class="bp">self</span><span class="o">.</span><span class="n">lastIndex</span> <span class="o">=</span> <span class="nb">int</span><span class="p">(</span><span class="n">value</span><span class="p">)</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">lastIndex</span>
<span class="k">def</span> <span class="nf">next</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">generator</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_internalGeneratorNextCall</span><span class="p">()</span>
<span class="bp">self</span><span class="o">.</span><span class="n">length</span> <span class="o">=</span> <span class="nb">len</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">values</span><span class="p">)</span>
<span class="n">index</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">getIndexValue</span><span class="p">()</span>
<span class="k">if</span> <span class="n">index</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
<span class="k">return</span> <span class="kc">None</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">count</span> <span class="o"><</span> <span class="bp">self</span><span class="o">.</span><span class="n">occurrences</span><span class="p">:</span>
<span class="n">value</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">values</span><span class="p">[</span><span class="n">index</span><span class="p">]</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_checkValueTypeAndIncrementCount</span><span class="p">(</span><span class="n">value</span><span class="p">)</span>
<span class="k">else</span><span class="p">:</span>
<span class="k">return</span> <span class="kc">None</span></div>
<div class="viewcode-block" id="EventMarkov"><a class="viewcode-back" href="../../../api/classes/events.html#pyo.EventMarkov">[docs]</a><span class="k">class</span> <span class="nc">EventMarkov</span><span class="p">(</span><span class="n">EventGenerator</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Applies a Markov algorithm to a list of values.</span>
<span class="sd"> A Markov chain is a stochastic model describing a sequence of possible events</span>
<span class="sd"> in which the probability of each event depends only on the state attained in</span>
<span class="sd"> the previous events.</span>
<span class="sd"> :Args:</span>
<span class="sd"> values: EventScale or list</span>
<span class="sd"> Original list of values.</span>
<span class="sd"> order: int, PyoObject or EventGenerator, optional</span>
<span class="sd"> Order of the Markov chain, between 1 and 10. Determines how many past</span>
<span class="sd"> values will be used to build the probability table for the next note.</span>
<span class="sd"> Defaults to 2.</span>
<span class="sd"> occurrences: int, optional</span>
<span class="sd"> Number of values to play. Defaults to inf (infinite).</span>
<span class="sd"> stopEventsWhenDone: bool, optional</span>
<span class="sd"> If True, the Events playback will stop if this generator reaches</span>
<span class="sd"> its end. If False, the Events will ignore this signal and probably</span>
<span class="sd"> get None as value for the given parameter. It's the user</span>
<span class="sd"> responsability to handle this case correctly. Defaults to True.</span>
<span class="sd"> >>> s = Server().boot()</span>
<span class="sd"> >>> s.start()</span>
<span class="sd"> >>> jesus = [67,69,71,74,72,72,76,74,74,79,78,79,74,71,67,69,71,72,74,76,74,72,71]</span>
<span class="sd"> >>> jesus += [69,71,67,66,67,69,62,66,69,72,71,69,71,67,69,71,74,72,72,76,74,74,79]</span>
<span class="sd"> >>> jesus += [78,79,74,71,67,69,71,64,74,72,71,69,67,62,67,66,67,71,74,79,74,71,67]</span>
<span class="sd"> >>> e = Events(midinote=EventMarkov(jesus, 2), beat=1/4., db=-6).play()</span>
<span class="sd"> """</span>
<span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">values</span><span class="p">,</span> <span class="n">order</span><span class="o">=</span><span class="mi">2</span><span class="p">,</span> <span class="n">occurrences</span><span class="o">=</span><span class="n">inf</span><span class="p">,</span> <span class="n">stopEventsWhenDone</span><span class="o">=</span><span class="kc">True</span><span class="p">):</span>
<span class="n">EventGenerator</span><span class="o">.</span><span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">values</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_inspect_values</span><span class="p">(</span><span class="n">values</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">occurrences</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_inspect_occurrences</span><span class="p">(</span><span class="n">occurrences</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">lastOrder</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">order</span> <span class="o">=</span> <span class="n">order</span>
<span class="bp">self</span><span class="o">.</span><span class="n">length</span> <span class="o">=</span> <span class="nb">len</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">values</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">stopEventsWhenDone</span> <span class="o">=</span> <span class="n">stopEventsWhenDone</span>
<span class="bp">self</span><span class="o">.</span><span class="n">markov</span> <span class="o">=</span> <span class="n">MarkovGen</span><span class="p">(</span><span class="n">values</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">reset</span><span class="p">()</span>
<span class="k">def</span> <span class="fm">__len__</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">occurrences</span>
<span class="k">def</span> <span class="nf">reset</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">generator</span> <span class="o">=</span> <span class="kc">None</span>
<span class="bp">self</span><span class="o">.</span><span class="n">count</span> <span class="o">=</span> <span class="mi">0</span>
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">order</span><span class="p">,</span> <span class="n">EventGenerator</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">order</span><span class="o">.</span><span class="n">reset</span><span class="p">()</span>
<span class="k">def</span> <span class="nf">getOrderValue</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">order</span><span class="p">,</span> <span class="n">PyoObject</span><span class="p">):</span>
<span class="n">value</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">order</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="kc">False</span><span class="p">)</span>
<span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">order</span><span class="p">,</span> <span class="n">EventGenerator</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">order</span><span class="o">.</span><span class="n">setMaster</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">master</span><span class="p">)</span>
<span class="n">value</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">order</span><span class="o">.</span><span class="n">next</span><span class="p">()</span>
<span class="k">if</span> <span class="n">value</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">stopEventsWhenDone</span><span class="p">:</span>
<span class="k">return</span> <span class="kc">None</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">value</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">lastOrder</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">value</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">order</span>
<span class="k">if</span> <span class="n">value</span> <span class="o"><</span> <span class="mi">0</span><span class="p">:</span>
<span class="n">value</span> <span class="o">=</span> <span class="mi">0</span>
<span class="k">elif</span> <span class="n">value</span> <span class="o">></span> <span class="mi">10</span><span class="p">:</span>
<span class="n">value</span> <span class="o">=</span> <span class="mi">10</span>
<span class="bp">self</span><span class="o">.</span><span class="n">lastOrder</span> <span class="o">=</span> <span class="nb">int</span><span class="p">(</span><span class="n">value</span><span class="p">)</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">lastOrder</span>
<span class="k">def</span> <span class="nf">next</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">generator</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_internalGeneratorNextCall</span><span class="p">()</span>
<span class="n">order</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">getOrderValue</span><span class="p">()</span>
<span class="k">if</span> <span class="n">order</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
<span class="k">return</span> <span class="kc">None</span>
<span class="bp">self</span><span class="o">.</span><span class="n">markov</span><span class="o">.</span><span class="n">setOrder</span><span class="p">(</span><span class="n">order</span><span class="p">)</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">count</span> <span class="o"><</span> <span class="bp">self</span><span class="o">.</span><span class="n">occurrences</span><span class="p">:</span>
<span class="n">value</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">markov</span><span class="o">.</span><span class="n">next</span><span class="p">()</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_checkValueTypeAndIncrementCount</span><span class="p">(</span><span class="n">value</span><span class="p">)</span>
<span class="k">else</span><span class="p">:</span>
<span class="k">return</span> <span class="kc">None</span></div>
<span class="c1">###################</span>
<div class="viewcode-block" id="EventChoice"><a class="viewcode-back" href="../../../api/classes/events.html#pyo.EventChoice">[docs]</a><span class="k">class</span> <span class="nc">EventChoice</span><span class="p">(</span><span class="n">EventGenerator</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Plays values randomly chosen from a list.</span>
<span class="sd"> :Args:</span>
<span class="sd"> values: EventScale or list</span>
<span class="sd"> List of possible values to read. Values in list can be floats,</span>
<span class="sd"> PyoObject or other EventGenerator.</span>
<span class="sd"> occurrences: int, optional</span>
<span class="sd"> Number of values to play. Defaults to inf (infinite).</span>
<span class="sd"> stopEventsWhenDone: bool, optional</span>
<span class="sd"> If True, the Events playback will stop if this generator reaches</span>
<span class="sd"> its end. If False, the Events will ignore this signal and probably</span>
<span class="sd"> get None as value for the given parameter. It's the user</span>
<span class="sd"> responsability to handle this case correctly. Defaults to True.</span>
<span class="sd"> >>> s = Server().boot()</span>
<span class="sd"> >>> s.start()</span>
<span class="sd"> >>> scl = [5.00, 5.02, 5.03, 5.05, 5.07, 5.08, 5.10, 6.00]</span>
<span class="sd"> >>> e = Events(degree = EventChoice(scl), beat = 1/4., db = -6).play()</span>
<span class="sd"> """</span>
<span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">values</span><span class="p">,</span> <span class="n">occurrences</span><span class="o">=</span><span class="n">inf</span><span class="p">,</span> <span class="n">stopEventsWhenDone</span><span class="o">=</span><span class="kc">True</span><span class="p">):</span>
<span class="n">EventGenerator</span><span class="o">.</span><span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">values</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_inspect_values</span><span class="p">(</span><span class="n">values</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">occurrences</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_inspect_occurrences</span><span class="p">(</span><span class="n">occurrences</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">length</span> <span class="o">=</span> <span class="nb">len</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">values</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">stopEventsWhenDone</span> <span class="o">=</span> <span class="n">stopEventsWhenDone</span>
<span class="bp">self</span><span class="o">.</span><span class="n">reset</span><span class="p">()</span>
<span class="k">def</span> <span class="fm">__len__</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">occurrences</span>
<span class="k">def</span> <span class="nf">reset</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">generator</span> <span class="o">=</span> <span class="kc">None</span>
<span class="bp">self</span><span class="o">.</span><span class="n">count</span> <span class="o">=</span> <span class="mi">0</span>
<span class="k">def</span> <span class="nf">next</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">generator</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_internalGeneratorNextCall</span><span class="p">()</span>
<span class="bp">self</span><span class="o">.</span><span class="n">length</span> <span class="o">=</span> <span class="nb">len</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">values</span><span class="p">)</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">count</span> <span class="o"><</span> <span class="bp">self</span><span class="o">.</span><span class="n">occurrences</span><span class="p">:</span>
<span class="n">value</span> <span class="o">=</span> <span class="n">random</span><span class="o">.</span><span class="n">choice</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">values</span><span class="p">)</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_checkValueTypeAndIncrementCount</span><span class="p">(</span><span class="n">value</span><span class="p">)</span>
<span class="k">else</span><span class="p">:</span>
<span class="k">return</span> <span class="kc">None</span></div>
<div class="viewcode-block" id="EventDrunk"><a class="viewcode-back" href="../../../api/classes/events.html#pyo.EventDrunk">[docs]</a><span class="k">class</span> <span class="nc">EventDrunk</span><span class="p">(</span><span class="n">EventGenerator</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Performs a random walk over a list of values.</span>
<span class="sd"> A random walk is a stochastic process that consists of a succession of</span>
<span class="sd"> random steps, within a distance of +/- `maxStep` from the previous state.</span>
<span class="sd"> :Args:</span>
<span class="sd"> values: EventScale or list</span>
<span class="sd"> List of values to read. Values in list can be floats,</span>
<span class="sd"> PyoObject or other EventGenerator.</span>
<span class="sd"> maxStep: int, PyoObject or EventGenerator, optional</span>
<span class="sd"> Determine the larger step the walk can do between two successive</span>
<span class="sd"> events. A negative 'maxStep' is the same but repetition are not</span>
<span class="sd"> allowed. Defaults to 2.</span>
<span class="sd"> occurrences: int, optional</span>
<span class="sd"> Number of values to play. Defaults to inf (infinite).</span>
<span class="sd"> stopEventsWhenDone: bool, optional</span>
<span class="sd"> If True, the Events playback will stop if this generator reaches</span>
<span class="sd"> its end. If False, the Events will ignore this signal and probably</span>
<span class="sd"> get None as value for the given parameter. It's the user</span>
<span class="sd"> responsability to handle this case correctly. Defaults to True.</span>
<span class="sd"> >>> s = Server().boot()</span>
<span class="sd"> >>> s.start()</span>
<span class="sd"> >>> scl = [5.00, 5.02, 5.03, 5.05, 5.07, 5.08, 5.10, 6.00]</span>
<span class="sd"> >>> e = Events(degree=EventDrunk(scl, maxStep=-2), beat=1/4., db=-6).play()</span>
<span class="sd"> """</span>
<span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">values</span><span class="p">,</span> <span class="n">maxStep</span><span class="o">=</span><span class="mi">2</span><span class="p">,</span> <span class="n">occurrences</span><span class="o">=</span><span class="n">inf</span><span class="p">,</span> <span class="n">stopEventsWhenDone</span><span class="o">=</span><span class="kc">True</span><span class="p">):</span>
<span class="n">EventGenerator</span><span class="o">.</span><span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">values</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_inspect_values</span><span class="p">(</span><span class="n">values</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">occurrences</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_inspect_occurrences</span><span class="p">(</span><span class="n">occurrences</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">lastMaxStep</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">maxStep</span> <span class="o">=</span> <span class="n">maxStep</span>
<span class="bp">self</span><span class="o">.</span><span class="n">length</span> <span class="o">=</span> <span class="nb">len</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">values</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">stopEventsWhenDone</span> <span class="o">=</span> <span class="n">stopEventsWhenDone</span>
<span class="bp">self</span><span class="o">.</span><span class="n">reset</span><span class="p">()</span>
<span class="k">def</span> <span class="fm">__len__</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">occurrences</span>
<span class="k">def</span> <span class="nf">reset</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">generator</span> <span class="o">=</span> <span class="kc">None</span>
<span class="bp">self</span><span class="o">.</span><span class="n">allowRepetition</span> <span class="o">=</span> <span class="kc">True</span>
<span class="bp">self</span><span class="o">.</span><span class="n">count</span> <span class="o">=</span> <span class="mi">0</span>
<span class="bp">self</span><span class="o">.</span><span class="n">index</span> <span class="o">=</span> <span class="nb">int</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">length</span> <span class="o">/</span> <span class="mi">2</span><span class="p">)</span>
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">maxStep</span><span class="p">,</span> <span class="n">EventGenerator</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">maxStep</span><span class="o">.</span><span class="n">reset</span><span class="p">()</span>
<span class="k">def</span> <span class="nf">getMaxStepValue</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">maxStep</span><span class="p">,</span> <span class="n">PyoObject</span><span class="p">):</span>
<span class="n">value</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">maxStep</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="kc">False</span><span class="p">)</span>
<span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">maxStep</span><span class="p">,</span> <span class="n">EventGenerator</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">maxStep</span><span class="o">.</span><span class="n">setMaster</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">master</span><span class="p">)</span>
<span class="n">value</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">maxStep</span><span class="o">.</span><span class="n">next</span><span class="p">()</span>
<span class="k">if</span> <span class="n">value</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">stopEventsWhenDone</span><span class="p">:</span>
<span class="k">return</span> <span class="kc">None</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">value</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">lastMaxStep</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">value</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">maxStep</span>
<span class="bp">self</span><span class="o">.</span><span class="n">allowRepetition</span> <span class="o">=</span> <span class="kc">True</span>
<span class="k">if</span> <span class="n">value</span> <span class="o"><</span> <span class="mi">0</span><span class="p">:</span>
<span class="n">value</span> <span class="o">=</span> <span class="o">-</span><span class="n">value</span>
<span class="bp">self</span><span class="o">.</span><span class="n">allowRepetition</span> <span class="o">=</span> <span class="kc">False</span>
<span class="k">elif</span> <span class="n">value</span> <span class="o">>=</span> <span class="bp">self</span><span class="o">.</span><span class="n">length</span><span class="p">:</span>
<span class="n">value</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">length</span> <span class="o">-</span> <span class="mi">2</span>
<span class="bp">self</span><span class="o">.</span><span class="n">lastMaxStep</span> <span class="o">=</span> <span class="nb">int</span><span class="p">(</span><span class="n">value</span><span class="p">)</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">lastMaxStep</span>
<span class="k">def</span> <span class="nf">next</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">generator</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_internalGeneratorNextCall</span><span class="p">()</span>
<span class="bp">self</span><span class="o">.</span><span class="n">length</span> <span class="o">=</span> <span class="nb">len</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">values</span><span class="p">)</span>
<span class="n">maxStep</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">getMaxStepValue</span><span class="p">()</span>
<span class="k">if</span> <span class="n">maxStep</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
<span class="k">return</span> <span class="kc">None</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">count</span> <span class="o"><</span> <span class="bp">self</span><span class="o">.</span><span class="n">occurrences</span><span class="p">:</span>
<span class="n">dev</span> <span class="o">=</span> <span class="n">random</span><span class="o">.</span><span class="n">randint</span><span class="p">(</span><span class="o">-</span><span class="n">maxStep</span><span class="p">,</span> <span class="n">maxStep</span><span class="p">)</span>
<span class="k">while</span> <span class="n">dev</span> <span class="o">==</span> <span class="mi">0</span> <span class="ow">and</span> <span class="ow">not</span> <span class="bp">self</span><span class="o">.</span><span class="n">allowRepetition</span><span class="p">:</span>
<span class="n">dev</span> <span class="o">=</span> <span class="n">random</span><span class="o">.</span><span class="n">randint</span><span class="p">(</span><span class="o">-</span><span class="n">maxStep</span><span class="p">,</span> <span class="n">maxStep</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">index</span> <span class="o">+=</span> <span class="n">dev</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">index</span> <span class="o"><</span> <span class="mi">0</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">index</span> <span class="o">=</span> <span class="o">-</span><span class="bp">self</span><span class="o">.</span><span class="n">index</span> <span class="o">-</span> <span class="n">dev</span> <span class="o">+</span> <span class="mi">1</span>
<span class="k">elif</span> <span class="bp">self</span><span class="o">.</span><span class="n">index</span> <span class="o">>=</span> <span class="bp">self</span><span class="o">.</span><span class="n">length</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">index</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">length</span> <span class="o">-</span> <span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">index</span> <span class="o">-</span> <span class="bp">self</span><span class="o">.</span><span class="n">length</span><span class="p">)</span> <span class="o">-</span> <span class="n">dev</span> <span class="o">-</span> <span class="mi">1</span>
<span class="n">value</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">values</span><span class="p">[</span><span class="bp">self</span><span class="o">.</span><span class="n">index</span><span class="p">]</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_checkValueTypeAndIncrementCount</span><span class="p">(</span><span class="n">value</span><span class="p">)</span>
<span class="k">else</span><span class="p">:</span>
<span class="k">return</span> <span class="kc">None</span></div>
<div class="viewcode-block" id="EventNoise"><a class="viewcode-back" href="../../../api/classes/events.html#pyo.EventNoise">[docs]</a><span class="k">class</span> <span class="nc">EventNoise</span><span class="p">(</span><span class="n">EventGenerator</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Return a random value between -1.0 and 1.0.</span>
<span class="sd"> EventNoise returns a random value between -1.0 and 1.0, based on one of</span>
<span class="sd"> three common noise generators, white, pink (1/f) and brown (1/f^2).</span>
<span class="sd"> :Args:</span>
<span class="sd"> type: int, optional</span>
<span class="sd"> The type of noise used to generate the random sequence. Available</span>
<span class="sd"> types are:</span>
<span class="sd"> 0: white noise (default)</span>
<span class="sd"> 1: pink noise</span>
<span class="sd"> 2:brown noise</span>
<span class="sd"> occurrences: int, optional</span>
<span class="sd"> Number of values to play. Defaults to inf (infinite).</span>
<span class="sd"> stopEventsWhenDone: bool, optional</span>
<span class="sd"> If True, the Events playback will stop if this generator reaches</span>
<span class="sd"> its end. If False, the Events will ignore this signal and probably</span>
<span class="sd"> get None as value for the given parameter. It's the user</span>
<span class="sd"> responsability to handle this case correctly. Defaults to True.</span>
<span class="sd"> >>> s = Server().boot()</span>
<span class="sd"> >>> s.start()</span>
<span class="sd"> >>> scl = EventScale("C", "aeolian", 4, 4)</span>
<span class="sd"> >>> note = EventNoise(1).rescale(-1,1,48,84,1).snap(scl)</span>
<span class="sd"> >>> e = Events(midinote=note, beat=1/4., db=-6).play()</span>
<span class="sd"> """</span>
<span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="nb">type</span><span class="o">=</span><span class="mi">0</span><span class="p">,</span> <span class="n">occurrences</span><span class="o">=</span><span class="n">inf</span><span class="p">,</span> <span class="n">stopEventsWhenDone</span><span class="o">=</span><span class="kc">True</span><span class="p">):</span>
<span class="n">EventGenerator</span><span class="o">.</span><span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">lastType</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">type</span> <span class="o">=</span> <span class="nb">type</span>
<span class="bp">self</span><span class="o">.</span><span class="n">occurrences</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_inspect_occurrences</span><span class="p">(</span><span class="n">occurrences</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">stopEventsWhenDone</span> <span class="o">=</span> <span class="n">stopEventsWhenDone</span>
<span class="bp">self</span><span class="o">.</span><span class="n">reset</span><span class="p">()</span>
<span class="k">def</span> <span class="fm">__len__</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">occurrences</span>
<span class="k">def</span> <span class="nf">reset</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">count</span> <span class="o">=</span> <span class="mi">0</span>
<span class="bp">self</span><span class="o">.</span><span class="n">y1</span> <span class="o">=</span> <span class="mf">0.0</span>
<span class="bp">self</span><span class="o">.</span><span class="n">c0</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">c1</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">c2</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">c3</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">c4</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">c5</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">c6</span> <span class="o">=</span> <span class="mf">0.0</span>
<span class="k">def</span> <span class="nf">getTypeValue</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">type</span><span class="p">,</span> <span class="n">PyoObject</span><span class="p">):</span>
<span class="n">value</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">type</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="kc">False</span><span class="p">)</span>
<span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">type</span><span class="p">,</span> <span class="n">EventGenerator</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">type</span><span class="o">.</span><span class="n">setMaster</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">master</span><span class="p">)</span>
<span class="n">value</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">type</span><span class="o">.</span><span class="n">next</span><span class="p">()</span>
<span class="k">if</span> <span class="n">value</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">stopEventsWhenDone</span><span class="p">:</span>
<span class="k">return</span> <span class="kc">None</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">value</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">lastType</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">value</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">type</span>
<span class="k">if</span> <span class="n">value</span> <span class="o"><</span> <span class="mi">0</span><span class="p">:</span>
<span class="n">value</span> <span class="o">=</span> <span class="mi">0</span>
<span class="k">elif</span> <span class="n">value</span> <span class="o">></span> <span class="mi">2</span><span class="p">:</span>
<span class="n">value</span> <span class="o">=</span> <span class="mi">2</span>
<span class="bp">self</span><span class="o">.</span><span class="n">lastType</span> <span class="o">=</span> <span class="nb">int</span><span class="p">(</span><span class="n">value</span><span class="p">)</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">lastType</span>
<span class="k">def</span> <span class="nf">next</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="nb">type</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">getTypeValue</span><span class="p">()</span>
<span class="k">if</span> <span class="nb">type</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
<span class="k">return</span> <span class="kc">None</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">count</span> <span class="o"><</span> <span class="bp">self</span><span class="o">.</span><span class="n">occurrences</span><span class="p">:</span>
<span class="k">if</span> <span class="nb">type</span> <span class="o">==</span> <span class="mi">0</span><span class="p">:</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_checkValueTypeAndIncrementCount</span><span class="p">(</span><span class="n">random</span><span class="o">.</span><span class="n">uniform</span><span class="p">(</span><span class="o">-</span><span class="mf">1.0</span><span class="p">,</span> <span class="mf">1.0</span><span class="p">))</span>
<span class="k">elif</span> <span class="nb">type</span> <span class="o">==</span> <span class="mi">1</span><span class="p">:</span>
<span class="n">rnd</span> <span class="o">=</span> <span class="n">random</span><span class="o">.</span><span class="n">uniform</span><span class="p">(</span><span class="o">-</span><span class="mf">0.99</span><span class="p">,</span> <span class="mf">0.99</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">c0</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">c0</span> <span class="o">*</span> <span class="mf">0.99886</span> <span class="o">+</span> <span class="n">rnd</span> <span class="o">*</span> <span class="mf">0.0555179</span>
<span class="bp">self</span><span class="o">.</span><span class="n">c1</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">c1</span> <span class="o">*</span> <span class="mf">0.99332</span> <span class="o">+</span> <span class="n">rnd</span> <span class="o">*</span> <span class="mf">0.0750759</span>
<span class="bp">self</span><span class="o">.</span><span class="n">c2</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">c2</span> <span class="o">*</span> <span class="mf">0.96900</span> <span class="o">+</span> <span class="n">rnd</span> <span class="o">*</span> <span class="mf">0.1538520</span>
<span class="bp">self</span><span class="o">.</span><span class="n">c3</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">c3</span> <span class="o">*</span> <span class="mf">0.86650</span> <span class="o">+</span> <span class="n">rnd</span> <span class="o">*</span> <span class="mf">0.3104856</span>
<span class="bp">self</span><span class="o">.</span><span class="n">c4</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">c4</span> <span class="o">*</span> <span class="mf">0.55000</span> <span class="o">+</span> <span class="n">rnd</span> <span class="o">*</span> <span class="mf">0.5329522</span>
<span class="bp">self</span><span class="o">.</span><span class="n">c5</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">c5</span> <span class="o">*</span> <span class="o">-</span><span class="mf">0.7616</span> <span class="o">-</span> <span class="n">rnd</span> <span class="o">*</span> <span class="mf">0.0168980</span>
<span class="n">val</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">c0</span> <span class="o">+</span> <span class="bp">self</span><span class="o">.</span><span class="n">c1</span> <span class="o">+</span> <span class="bp">self</span><span class="o">.</span><span class="n">c2</span> <span class="o">+</span> <span class="bp">self</span><span class="o">.</span><span class="n">c3</span> <span class="o">+</span> <span class="bp">self</span><span class="o">.</span><span class="n">c4</span> <span class="o">+</span> <span class="bp">self</span><span class="o">.</span><span class="n">c5</span> <span class="o">+</span> <span class="bp">self</span><span class="o">.</span><span class="n">c6</span> <span class="o">+</span> <span class="n">rnd</span> <span class="o">*</span> <span class="mf">0.5362</span>
<span class="bp">self</span><span class="o">.</span><span class="n">c6</span> <span class="o">=</span> <span class="n">rnd</span> <span class="o">*</span> <span class="mf">0.115926</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_checkValueTypeAndIncrementCount</span><span class="p">(</span><span class="n">val</span> <span class="o">*</span> <span class="mf">0.2</span><span class="p">)</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">rnd</span> <span class="o">=</span> <span class="n">random</span><span class="o">.</span><span class="n">uniform</span><span class="p">(</span><span class="o">-</span><span class="mf">0.99</span><span class="p">,</span> <span class="mf">0.99</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">y1</span> <span class="o">=</span> <span class="n">rnd</span> <span class="o">+</span> <span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">y1</span> <span class="o">-</span> <span class="n">rnd</span><span class="p">)</span> <span class="o">*</span> <span class="mf">0.996</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_checkValueTypeAndIncrementCount</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">y1</span> <span class="o">*</span> <span class="mf">20.0</span><span class="p">)</span>
<span class="k">else</span><span class="p">:</span>
<span class="k">return</span> <span class="kc">None</span></div>
<span class="c1">###################</span>
<div class="viewcode-block" id="EventCall"><a class="viewcode-back" href="../../../api/classes/events.html#pyo.EventCall">[docs]</a><span class="k">class</span> <span class="nc">EventCall</span><span class="p">(</span><span class="n">EventGenerator</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Calls a function, with any number of arguments, and uses its return value.</span>
<span class="sd"> EventCall can call any function (built-in, from a module or user-defined)</span>
<span class="sd"> and use its return as the value for the Events's parameter where it is used.</span>
<span class="sd"> The function *must* return a single number.</span>
<span class="sd"> :Args:</span>
<span class="sd"> function: callable</span>
<span class="sd"> The function to call, which should return the value to use.</span>
<span class="sd"> args: int, PyoObject or EventGenerator, optional</span>
<span class="sd"> Any number of arguments to pass to the function call. If given a</span>
<span class="sd"> PyoObject or an EventGenerator, these will be resolved for each</span>
<span class="sd"> event and the result passed, as number, to the function.</span>
<span class="sd"> occurrences: int, optional</span>
<span class="sd"> Number of values to play. Defaults to inf (infinite).</span>
<span class="sd"> stopEventsWhenDone: bool, optional</span>
<span class="sd"> If True, the Events playback will stop if this generator reaches</span>
<span class="sd"> its end. If False, the Events will ignore this signal and probably</span>
<span class="sd"> get None as value for the given parameter. It's the user</span>
<span class="sd"> responsability to handle this case correctly. Defaults to True.</span>
<span class="sd"> >>> s = Server().boot()</span>
<span class="sd"> >>> s.start()</span>
<span class="sd"> >>> from random import randrange</span>
<span class="sd"> >>> e = Events(midinote=EventCall(randrange, 48, 72, 3), beat=1/4., db=-6).play()</span>
<span class="sd"> """</span>
<span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">function</span><span class="p">,</span> <span class="o">*</span><span class="n">args</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span>
<span class="n">EventGenerator</span><span class="o">.</span><span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">function</span> <span class="o">=</span> <span class="n">function</span>
<span class="bp">self</span><span class="o">.</span><span class="n">args</span> <span class="o">=</span> <span class="n">args</span>
<span class="bp">self</span><span class="o">.</span><span class="n">occurrences</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_inspect_occurrences</span><span class="p">(</span><span class="n">kwargs</span><span class="o">.</span><span class="n">pop</span><span class="p">(</span><span class="s2">"occurrences"</span><span class="p">,</span> <span class="n">inf</span><span class="p">))</span>
<span class="bp">self</span><span class="o">.</span><span class="n">stopEventsWhenDone</span> <span class="o">=</span> <span class="n">kwargs</span><span class="o">.</span><span class="n">pop</span><span class="p">(</span><span class="s2">"stopEventsWhenDone"</span><span class="p">,</span> <span class="kc">True</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">reset</span><span class="p">()</span>
<span class="k">def</span> <span class="fm">__len__</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">occurrences</span>
<span class="k">def</span> <span class="nf">reset</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">generator</span> <span class="o">=</span> <span class="kc">None</span>
<span class="bp">self</span><span class="o">.</span><span class="n">count</span> <span class="o">=</span> <span class="mi">0</span>
<span class="k">def</span> <span class="nf">next</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">generator</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_internalGeneratorNextCall</span><span class="p">()</span>
<span class="n">args</span> <span class="o">=</span> <span class="p">[]</span>
<span class="k">for</span> <span class="n">arg</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">args</span><span class="p">:</span>
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">arg</span><span class="p">,</span> <span class="n">PyoObject</span><span class="p">):</span>
<span class="n">args</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">arg</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="kc">False</span><span class="p">))</span>
<span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">arg</span><span class="p">,</span> <span class="n">EventGenerator</span><span class="p">):</span>
<span class="n">arg</span><span class="o">.</span><span class="n">setMaster</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">master</span><span class="p">)</span>
<span class="n">args</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">arg</span><span class="o">.</span><span class="n">next</span><span class="p">())</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">args</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">arg</span><span class="p">)</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">count</span> <span class="o"><</span> <span class="bp">self</span><span class="o">.</span><span class="n">occurrences</span><span class="p">:</span>
<span class="n">value</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">function</span><span class="p">(</span><span class="o">*</span><span class="n">args</span><span class="p">)</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_checkValueTypeAndIncrementCount</span><span class="p">(</span><span class="n">value</span><span class="p">)</span>
<span class="k">else</span><span class="p">:</span>
<span class="k">return</span> <span class="kc">None</span></div>
<span class="c1">###################</span>
<div class="viewcode-block" id="EventConditional"><a class="viewcode-back" href="../../../api/classes/events.html#pyo.EventConditional">[docs]</a><span class="k">class</span> <span class="nc">EventConditional</span><span class="p">(</span><span class="n">EventGenerator</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Executes one generator or the other depending on the result of a condition.</span>
<span class="sd"> EventConditional takes three values or generators as arguments and if the</span>
<span class="sd"> value of `condition` is True (anything that python considers True), the</span>
<span class="sd"> `iftrue` argument is used to produce the value for the event, otherwise</span>
<span class="sd"> th `iffalse` argument is used.</span>
<span class="sd"> :Args:</span>
<span class="sd"> condition: int, PyoObject or EventGenerator</span>
<span class="sd"> Conditional value. True for everything python considers True.</span>
<span class="sd"> iftrue: int, PyoObject or EventGenerator</span>
<span class="sd"> Output value if the condition is True.</span>
<span class="sd"> iffalse: int, PyoObject or EventGenerator</span>
<span class="sd"> Output value if the condition is False.</span>
<span class="sd"> occurrences: int, optional</span>
<span class="sd"> Number of values to play. Defaults to inf (infinite).</span>
<span class="sd"> stopEventsWhenDone: bool, optional</span>
<span class="sd"> If True, the Events playback will stop if this generator reaches</span>
<span class="sd"> its end. If False, the Events will ignore this signal and probably</span>
<span class="sd"> get None as value for the given parameter. It's the user</span>
<span class="sd"> responsability to handle this case correctly. Defaults to True.</span>
<span class="sd"> >>> s = Server().boot()</span>
<span class="sd"> >>> s.start()</span>
<span class="sd"> >>> from random import randrange</span>
<span class="sd"> >>> scl = EventScale("C", "aeolian", 4, 3)</span>
<span class="sd"> >>> bit = EventChoice([0, 1, 1, 1])</span>
<span class="sd"> >>> pittrue = EventSlide(scl, segment=3, step=1, startpos=0)</span>
<span class="sd"> >>> veltrue = EventDrunk(range(64, 127), maxStep=5)</span>
<span class="sd"> >>> pit = EventConditional(bit, pittrue, 0)</span>
<span class="sd"> >>> vel = EventConditional(bit, veltrue, 0)</span>
<span class="sd"> >>> e = Events(midinote=pit, beat=1/4., midivel=vel).play()</span>
<span class="sd"> """</span>
<span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">condition</span><span class="p">,</span> <span class="n">iftrue</span><span class="p">,</span> <span class="n">iffalse</span><span class="p">,</span> <span class="n">occurrences</span><span class="o">=</span><span class="n">inf</span><span class="p">,</span> <span class="n">stopEventsWhenDone</span><span class="o">=</span><span class="kc">True</span><span class="p">):</span>
<span class="n">EventGenerator</span><span class="o">.</span><span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">condition</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_inspect_generator</span><span class="p">(</span><span class="n">condition</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">iftrue</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_inspect_generator</span><span class="p">(</span><span class="n">iftrue</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">iffalse</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_inspect_generator</span><span class="p">(</span><span class="n">iffalse</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">occurrences</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_inspect_occurrences</span><span class="p">(</span><span class="n">occurrences</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">stopEventsWhenDone</span> <span class="o">=</span> <span class="n">stopEventsWhenDone</span>
<span class="bp">self</span><span class="o">.</span><span class="n">reset</span><span class="p">()</span>
<span class="k">def</span> <span class="fm">__len__</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">occurrences</span>
<span class="k">def</span> <span class="nf">reset</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">count</span> <span class="o">=</span> <span class="mi">0</span>
<span class="bp">self</span><span class="o">.</span><span class="n">lastCondition</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">lastIftrue</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">lastIffalse</span> <span class="o">=</span> <span class="mi">0</span>
<span class="k">def</span> <span class="nf">getConditionValue</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">condition</span><span class="p">,</span> <span class="n">PyoObject</span><span class="p">):</span>
<span class="n">value</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">condition</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="kc">False</span><span class="p">)</span>
<span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">condition</span><span class="p">,</span> <span class="n">EventGenerator</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">condition</span><span class="o">.</span><span class="n">setMaster</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">master</span><span class="p">)</span>
<span class="n">value</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">condition</span><span class="o">.</span><span class="n">next</span><span class="p">()</span>
<span class="k">if</span> <span class="n">value</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">stopEventsWhenDone</span><span class="p">:</span>
<span class="k">return</span> <span class="kc">None</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">value</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">lastCondition</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">value</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">condition</span>
<span class="bp">self</span><span class="o">.</span><span class="n">lastCondition</span> <span class="o">=</span> <span class="n">value</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">lastCondition</span>
<span class="k">def</span> <span class="nf">getIftrueValue</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">iftrue</span><span class="p">,</span> <span class="n">PyoObject</span><span class="p">):</span>
<span class="n">value</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">iftrue</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="kc">False</span><span class="p">)</span>
<span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">iftrue</span><span class="p">,</span> <span class="n">EventGenerator</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">iftrue</span><span class="o">.</span><span class="n">setMaster</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">master</span><span class="p">)</span>
<span class="n">value</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">iftrue</span><span class="o">.</span><span class="n">next</span><span class="p">()</span>
<span class="k">if</span> <span class="n">value</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">stopEventsWhenDone</span><span class="p">:</span>
<span class="k">return</span> <span class="kc">None</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">value</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">lastIftrue</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">value</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">iftrue</span>
<span class="bp">self</span><span class="o">.</span><span class="n">lastIftrue</span> <span class="o">=</span> <span class="n">value</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">lastIftrue</span>
<span class="k">def</span> <span class="nf">getIffalseValue</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">iffalse</span><span class="p">,</span> <span class="n">PyoObject</span><span class="p">):</span>
<span class="n">value</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">iffalse</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="kc">False</span><span class="p">)</span>
<span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">iffalse</span><span class="p">,</span> <span class="n">EventGenerator</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">iffalse</span><span class="o">.</span><span class="n">setMaster</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">master</span><span class="p">)</span>
<span class="n">value</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">iffalse</span><span class="o">.</span><span class="n">next</span><span class="p">()</span>
<span class="k">if</span> <span class="n">value</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">stopEventsWhenDone</span><span class="p">:</span>
<span class="k">return</span> <span class="kc">None</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">value</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">lastIffalse</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">value</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">iffalse</span>
<span class="bp">self</span><span class="o">.</span><span class="n">lastIffalse</span> <span class="o">=</span> <span class="n">value</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">lastIffalse</span>
<span class="k">def</span> <span class="nf">next</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="n">condition</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">getConditionValue</span><span class="p">()</span>
<span class="k">if</span> <span class="n">condition</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
<span class="k">return</span> <span class="kc">None</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">count</span> <span class="o"><</span> <span class="bp">self</span><span class="o">.</span><span class="n">occurrences</span><span class="p">:</span>
<span class="k">if</span> <span class="n">condition</span><span class="p">:</span>
<span class="n">value</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">getIftrueValue</span><span class="p">()</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">value</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">getIffalseValue</span><span class="p">()</span>
<span class="k">if</span> <span class="n">value</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
<span class="k">return</span> <span class="kc">None</span>
<span class="k">else</span><span class="p">:</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_checkValueTypeAndIncrementCount</span><span class="p">(</span><span class="n">value</span><span class="p">)</span>
<span class="k">else</span><span class="p">:</span>
<span class="k">return</span> <span class="kc">None</span></div>
<span class="c1"># Event Player</span>
<span class="c1">##############</span>
<div class="viewcode-block" id="Events"><a class="viewcode-back" href="../../../api/classes/events.html#pyo.Events">[docs]</a><span class="k">class</span> <span class="nc">Events</span><span class="p">(</span><span class="nb">dict</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Sequencing user-defined events to form musical phrases.</span>
<span class="sd"> The Events object is the primary tool in the events framework. It uses</span>
<span class="sd"> generators (derived from EventGenerator) as value for its arguments to</span>
<span class="sd"> build a sequence of events, each of them with their own parameters.</span>
<span class="sd"> Each time Events needs to produce a new event, it collects values from</span>
<span class="sd"> the generators given to its arguments, builds a parameter dictionary</span>
<span class="sd"> and gives it to a new instance of the audio instrument referenced to</span>
<span class="sd"> its 'instr' argument.</span>
<span class="sd"> The object produces new events until one of its generators reaches the</span>
<span class="sd"> end of its sequence.</span>
<span class="sd"> Events is a child of the dictionary class, which means that every argument</span>
<span class="sd"> given at its initialization will become a new key (with its associated</span>
<span class="sd"> value) in its memory. These keys will serve to create the parameter</span>
<span class="sd"> dictionary passed to the audio instrument instance playing this event.</span>
<span class="sd"> Inside the instrument instance, the value associated to these keys will</span>
<span class="sd"> be retrieved as instance's attributes, with the syntax self.key_name.</span>
<span class="sd"> The user can create as many new keys as needed to control its instrument,</span>
<span class="sd"> but there is already a number of pre-defined keys for which Events will</span>
<span class="sd"> do some processing and build useful parameters. Here is the list, grouped</span>
<span class="sd"> by themes, of pre-defined keys to overwrite:</span>
<span class="sd"> **Instrument**</span>
<span class="sd"> - instr: class, optional</span>
<span class="sd"> Reference to a custom class with which the events will be played.</span>
<span class="sd"> Defaults to DefaultInstrument.</span>
<span class="sd"> - signal: string, optional</span>
<span class="sd"> Name of the attribute in the instrument defintion retrieved as the</span>
<span class="sd"> output signal of the Events object. The sig() method returns the</span>
<span class="sd"> sum, as an audio signal, of all active instances. This can be useful</span>
<span class="sd"> to do post-processing on the signal produced by the events. Defaults</span>
<span class="sd"> to None.</span>
<span class="sd"> **Constants**</span>
<span class="sd"> - bpm: int, optional</span>
<span class="sd"> Beat-Per-Minute value used by the `beat` key to compute event's duration.</span>
<span class="sd"> Defaults to 120.</span>
<span class="sd"> - outs: int, optional</span>
<span class="sd"> Number of output channels in the audio signal returned by the sig() method.</span>
<span class="sd"> This value should match the number of audio streams produced by the instrument.</span>
<span class="sd"> Defaults to 2.</span>
<span class="sd"> **Duration keys**</span>
<span class="sd"> - dur: float, PyoObject or EventGenerator, optional</span>
<span class="sd"> Duration, in seconds, before the next event. Defaults to 1.</span>
<span class="sd"> - beat: float, PyoObject or EventGenerator, optional</span>
<span class="sd"> Duration, in beat value, before the next event (1 beat = quarter note at BPM).</span>
<span class="sd"> If defined, this value will be used to compute the duration in seconds for the</span>
<span class="sd"> `dur` key. Defaults to None.</span>
<span class="sd"> - durmul: float, PyoObject or EventGenerator, optional</span>
<span class="sd"> Event duration multiplier (only affects the duration of the event's lifetime,</span>
<span class="sd"> not the time to wait before the next event). Defaults to 1.</span>
<span class="sd"> - tail: float, PyoObject or EventGenerator, optional</span>
<span class="sd"> Duration, in seconds, to wait before deleting the instrument's instance when</span>
<span class="sd"> its envelope has ended. Useful to let a reverb tail to finish before cleaning-up</span>
<span class="sd"> the instance. Defaults to 2.</span>
<span class="sd"> **Amplitude keys**</span>
<span class="sd"> - amp: float, PyoObject or EventGenerator, optional</span>
<span class="sd"> Linear gain for the event (1 is nominal gain). Defaults to 0.7.</span>
<span class="sd"> - dB: float, PyoObject or EventGenerator, optional</span>
<span class="sd"> Gain, in decibels, for the event. If defined, this value will be used to compute</span>
<span class="sd"> the linear gain for the `amp` key. Defaults to None.</span>
<span class="sd"> - midivel: float, PyoObject or EventGenerator, optional</span>
<span class="sd"> Midi velocity, between 0 and 127, for the event. If defined, this value will be</span>
<span class="sd"> used to compute the linear gain for the `amp` key. Defaults to None.</span>
<span class="sd"> **Envelope keys**</span>
<span class="sd"> - envelope: PyoTableObject, optional</span>
<span class="sd"> User-defined envelope as a PyoTableObject. If defined, this will be the envelope</span>
<span class="sd"> created for the event. Defaults to None.</span>
<span class="sd"> - attack: float, PyoObject or EventGenerator, optional</span>
<span class="sd"> Rising time, in seconds, of an ASR or ADSR envelope. This envelope is created if</span>
<span class="sd"> `envelope` is None. Defaults to 0.005.</span>
<span class="sd"> - decay: float, PyoObject or EventGenerator, optional</span>
<span class="sd"> If defined, its the decay time, in seconds, of an ADSR envelope, otherwise the</span>
<span class="sd"> envelope will be an ASR (Attack - Sustain - Release). Defaults to None.</span>
<span class="sd"> - sustain: float, PyoObject or EventGenerator, optional</span>
<span class="sd"> Sustain linear gain of an ADSR or ASR envelope. Defaults to 0.7.</span>
<span class="sd"> - release: float, PyoObject or EventGenerator, optional</span>
<span class="sd"> Release time, in seconds, of an ASR or ADSR envelope. This envelope is created if</span>
<span class="sd"> `envelope` is None. Defaults to 0.05.</span>
<span class="sd"> **Pitch keys**</span>
<span class="sd"> - freq: float, PyoObject or EventGenerator, optional</span>
<span class="sd"> Frequency, in cycle per seconds, for the event. Defaults to 250.</span>
<span class="sd"> - midinote: float, PyoObject or EventGenerator, optional</span>
<span class="sd"> Midi pitch, between 0 and 127, for the event. If defined, this value will be used</span>
<span class="sd"> to compute the frequency in cycles per second for the `freq` key. Defaults to None.</span>
<span class="sd"> - degree: float, PyoObject or EventGenerator, optional</span>
<span class="sd"> Octave.degree pitch notation (ex.: 6.00, 6.04, 6.07). If defined, this value will be</span>
<span class="sd"> used to compute the frequency in cycles per second for the `freq` key. Defaults to None.</span>
<span class="sd"> - transpo: float, PyoObject or EventGenerator, optional</span>
<span class="sd"> Transposition, in midi note value (-12 is an octave lower), automatically computed in</span>
<span class="sd"> the value of the `freq` key. Defaults to 0.</span>
<span class="sd"> **Ending keys**</span>
<span class="sd"> - atend: python callable, optional</span>
<span class="sd"> If defined, a function to call when all events are played. This can be useful to sequence</span>
<span class="sd"> multiple Events objects. Defaults to None</span>
<span class="sd"> >>> s = Server().boot()</span>
<span class="sd"> >>> s.start()</span>
<span class="sd"> >>> env = CosTable([(0,0.0),(64,1.0),(8191,0.0)])</span>
<span class="sd"> >>> scl = EventScale(root="C", scale="egyptian", first=4, octaves=3)</span>
<span class="sd"> >>> seg = RandInt(max=6, freq=0.5)</span>
<span class="sd"> >>> step = RandInt(max=6, freq=0.75, add=-3)</span>
<span class="sd"> >>> note = EventSlide(scl, seg, step)</span>
<span class="sd"> >>> e = Events(midinote=note, beat=1/4., db=[-3, -9, -9], envelope=env, durmul=1.25).play()</span>
<span class="sd"> """</span>
<span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="o">**</span><span class="n">args</span><span class="p">):</span>
<span class="c1"># Instrument key</span>
<span class="bp">self</span><span class="p">[</span><span class="s2">"instr"</span><span class="p">]</span> <span class="o">=</span> <span class="n">DefaultInstrument</span>
<span class="bp">self</span><span class="p">[</span><span class="s2">"signal"</span><span class="p">]</span> <span class="o">=</span> <span class="kc">None</span>
<span class="c1"># Constant keys</span>
<span class="bp">self</span><span class="p">[</span><span class="s2">"bpm"</span><span class="p">]</span> <span class="o">=</span> <span class="mi">120</span>
<span class="bp">self</span><span class="p">[</span><span class="s2">"outs"</span><span class="p">]</span> <span class="o">=</span> <span class="mi">2</span>
<span class="c1"># Duration keys</span>
<span class="bp">self</span><span class="p">[</span><span class="s2">"dur"</span><span class="p">]</span> <span class="o">=</span> <span class="mi">1</span>
<span class="bp">self</span><span class="p">[</span><span class="s2">"beat"</span><span class="p">]</span> <span class="o">=</span> <span class="kc">None</span>
<span class="bp">self</span><span class="p">[</span><span class="s2">"durmul"</span><span class="p">]</span> <span class="o">=</span> <span class="mi">1</span>
<span class="bp">self</span><span class="p">[</span><span class="s2">"tail"</span><span class="p">]</span> <span class="o">=</span> <span class="mi">2</span>
<span class="c1"># Amplitude keys</span>
<span class="bp">self</span><span class="p">[</span><span class="s2">"amp"</span><span class="p">]</span> <span class="o">=</span> <span class="mf">0.7</span>
<span class="bp">self</span><span class="p">[</span><span class="s2">"db"</span><span class="p">]</span> <span class="o">=</span> <span class="kc">None</span>
<span class="bp">self</span><span class="p">[</span><span class="s2">"midivel"</span><span class="p">]</span> <span class="o">=</span> <span class="kc">None</span>
<span class="c1"># Envelope keys</span>
<span class="bp">self</span><span class="p">[</span><span class="s2">"envelope"</span><span class="p">]</span> <span class="o">=</span> <span class="kc">None</span>
<span class="bp">self</span><span class="p">[</span><span class="s2">"attack"</span><span class="p">]</span> <span class="o">=</span> <span class="mf">0.005</span>
<span class="bp">self</span><span class="p">[</span><span class="s2">"decay"</span><span class="p">]</span> <span class="o">=</span> <span class="kc">None</span>
<span class="bp">self</span><span class="p">[</span><span class="s2">"sustain"</span><span class="p">]</span> <span class="o">=</span> <span class="mf">0.7</span>
<span class="bp">self</span><span class="p">[</span><span class="s2">"release"</span><span class="p">]</span> <span class="o">=</span> <span class="mf">0.05</span>
<span class="c1"># Pitch keys</span>
<span class="bp">self</span><span class="p">[</span><span class="s2">"freq"</span><span class="p">]</span> <span class="o">=</span> <span class="mi">250</span>
<span class="bp">self</span><span class="p">[</span><span class="s2">"midinote"</span><span class="p">]</span> <span class="o">=</span> <span class="kc">None</span>
<span class="bp">self</span><span class="p">[</span><span class="s2">"degree"</span><span class="p">]</span> <span class="o">=</span> <span class="kc">None</span>
<span class="bp">self</span><span class="p">[</span><span class="s2">"transpo"</span><span class="p">]</span> <span class="o">=</span> <span class="mi">0</span>
<span class="c1"># Ending keys</span>
<span class="bp">self</span><span class="p">[</span><span class="s2">"atend"</span><span class="p">]</span> <span class="o">=</span> <span class="kc">None</span>
<span class="bp">self</span><span class="o">.</span><span class="n">instanceId</span> <span class="o">=</span> <span class="mi">0</span>
<span class="bp">self</span><span class="o">.</span><span class="n">maxInstanceId</span> <span class="o">=</span> <span class="mi">2</span> <span class="o">**</span> <span class="mi">31</span>
<span class="c1"># Add user-supplied arguments as dict attributes.</span>
<span class="k">for</span> <span class="n">item</span> <span class="ow">in</span> <span class="n">args</span><span class="o">.</span><span class="n">items</span><span class="p">():</span>
<span class="bp">self</span><span class="p">[</span><span class="n">item</span><span class="p">[</span><span class="mi">0</span><span class="p">]]</span> <span class="o">=</span> <span class="n">item</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">callNextEvent</span> <span class="o">=</span> <span class="n">Pattern</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_processEvent</span><span class="p">)</span><span class="o">.</span><span class="n">stop</span><span class="p">()</span>
<span class="bp">self</span><span class="o">.</span><span class="n">currentDict</span> <span class="o">=</span> <span class="p">{}</span>
<span class="bp">self</span><span class="o">.</span><span class="n">output</span> <span class="o">=</span> <span class="n">Sig</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="p">[</span><span class="s2">"outs"</span><span class="p">])</span>
<div class="viewcode-block" id="Events.events"><a class="viewcode-back" href="../../../api/classes/events.html#pyo.Events.events">[docs]</a> <span class="k">def</span> <span class="nf">events</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">""" Return a copy of this Events object. """</span>
<span class="n">evts</span> <span class="o">=</span> <span class="n">Events</span><span class="p">()</span>
<span class="k">for</span> <span class="n">attr</span> <span class="ow">in</span> <span class="nb">list</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">try</span><span class="p">:</span>
<span class="n">evts</span><span class="p">[</span><span class="n">attr</span><span class="p">]</span> <span class="o">=</span> <span class="bp">self</span><span class="p">[</span><span class="n">attr</span><span class="p">]</span><span class="o">.</span><span class="n">copy</span><span class="p">()</span>
<span class="k">except</span><span class="p">:</span>
<span class="n">evts</span><span class="p">[</span><span class="n">attr</span><span class="p">]</span> <span class="o">=</span> <span class="bp">self</span><span class="p">[</span><span class="n">attr</span><span class="p">]</span>
<span class="k">return</span> <span class="n">evts</span></div>
<div class="viewcode-block" id="Events.play"><a class="viewcode-back" href="../../../api/classes/events.html#pyo.Events.play">[docs]</a> <span class="k">def</span> <span class="nf">play</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">dur</span><span class="o">=</span><span class="mi">0</span><span class="p">,</span> <span class="n">delay</span><span class="o">=</span><span class="mi">0</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Start the events playback.</span>
<span class="sd"> This method returns `self`, allowing it to be applied at the object</span>
<span class="sd"> creation.</span>
<span class="sd"> :Args:</span>
<span class="sd"> dur: float, optional</span>
<span class="sd"> Duration, in seconds, of the object's activation. The default</span>
<span class="sd"> is 0 and means infinite duration.</span>
<span class="sd"> delay: float, optional</span>
<span class="sd"> Delay, in seconds, before the object's activation. Defaults to 0.</span>
<span class="sd"> """</span>
<span class="k">if</span> <span class="ow">not</span> <span class="nb">issubclass</span><span class="p">(</span><span class="bp">self</span><span class="p">[</span><span class="s2">"instr"</span><span class="p">],</span> <span class="n">EventInstrument</span><span class="p">):</span>
<span class="nb">print</span><span class="p">(</span><span class="s2">"`instr` argument must be a sub-class of EventInstrument..."</span><span class="p">)</span>
<span class="nb">print</span><span class="p">(</span><span class="s2">"... Events is using DefaultInstrument!"</span><span class="p">)</span>
<span class="bp">self</span><span class="p">[</span><span class="s2">"instr"</span><span class="p">]</span> <span class="o">=</span> <span class="n">DefaultInstrument</span>
<span class="bp">self</span><span class="o">.</span><span class="n">actives</span> <span class="o">=</span> <span class="p">{}</span>
<span class="bp">self</span><span class="o">.</span><span class="n">callAtEnd</span> <span class="o">=</span> <span class="kc">None</span>
<span class="k">if</span> <span class="n">callable</span><span class="p">(</span><span class="bp">self</span><span class="p">[</span><span class="s2">"atend"</span><span class="p">]):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">callAtEnd</span> <span class="o">=</span> <span class="n">CallAfter</span><span class="p">(</span><span class="bp">self</span><span class="p">[</span><span class="s2">"atend"</span><span class="p">],</span> <span class="mi">0</span><span class="p">)</span><span class="o">.</span><span class="n">stop</span><span class="p">()</span>
<span class="k">for</span> <span class="n">key</span> <span class="ow">in</span> <span class="p">[</span><span class="n">k</span> <span class="k">for</span> <span class="n">k</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">keys</span><span class="p">()</span> <span class="k">if</span> <span class="n">k</span> <span class="ow">not</span> <span class="ow">in</span> <span class="p">[</span><span class="s2">"instr"</span><span class="p">,</span> <span class="s2">"signal"</span><span class="p">,</span> <span class="s2">"bpm"</span><span class="p">,</span> <span class="s2">"outs"</span><span class="p">,</span> <span class="s2">"atend"</span><span class="p">]]:</span>
<span class="k">if</span> <span class="bp">self</span><span class="p">[</span><span class="n">key</span><span class="p">]</span> <span class="ow">is</span> <span class="kc">None</span> <span class="ow">or</span> <span class="nb">isinstance</span><span class="p">(</span><span class="bp">self</span><span class="p">[</span><span class="n">key</span><span class="p">],</span> <span class="n">PyoObjectBase</span><span class="p">):</span>
<span class="k">pass</span>
<span class="k">elif</span> <span class="nb">type</span><span class="p">(</span><span class="bp">self</span><span class="p">[</span><span class="n">key</span><span class="p">])</span> <span class="ow">in</span> <span class="p">[</span><span class="nb">type</span><span class="p">([]),</span> <span class="nb">type</span><span class="p">(())]:</span>
<span class="bp">self</span><span class="p">[</span><span class="n">key</span><span class="p">]</span> <span class="o">=</span> <span class="n">EventSeq</span><span class="p">(</span><span class="bp">self</span><span class="p">[</span><span class="n">key</span><span class="p">])</span>
<span class="k">elif</span> <span class="nb">type</span><span class="p">(</span><span class="bp">self</span><span class="p">[</span><span class="n">key</span><span class="p">])</span> <span class="ow">in</span> <span class="p">[</span><span class="nb">type</span><span class="p">(</span><span class="mi">0</span><span class="p">),</span> <span class="nb">type</span><span class="p">(</span><span class="mf">0.0</span><span class="p">)]:</span>
<span class="bp">self</span><span class="p">[</span><span class="n">key</span><span class="p">]</span> <span class="o">=</span> <span class="n">EventSeq</span><span class="p">([</span><span class="bp">self</span><span class="p">[</span><span class="n">key</span><span class="p">]])</span>
<span class="k">else</span><span class="p">:</span>
<span class="bp">self</span><span class="p">[</span><span class="n">key</span><span class="p">]</span><span class="o">.</span><span class="n">resetEmbeddedGenerator</span><span class="p">()</span>
<span class="bp">self</span><span class="p">[</span><span class="n">key</span><span class="p">]</span><span class="o">.</span><span class="n">reset</span><span class="p">()</span>
<span class="bp">self</span><span class="o">.</span><span class="n">callNextEvent</span><span class="o">.</span><span class="n">play</span><span class="p">(</span><span class="n">dur</span><span class="o">=</span><span class="n">dur</span><span class="p">,</span> <span class="n">delay</span><span class="o">=</span><span class="n">delay</span><span class="p">)</span>
<span class="k">return</span> <span class="bp">self</span></div>
<div class="viewcode-block" id="Events.stop"><a class="viewcode-back" href="../../../api/classes/events.html#pyo.Events.stop">[docs]</a> <span class="k">def</span> <span class="nf">stop</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">wait</span><span class="o">=</span><span class="mi">0</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Stop the events playback.</span>
<span class="sd"> :Args:</span>
<span class="sd"> wait: float, optional</span>
<span class="sd"> Delay, in seconds, before the process is actually stopped.</span>
<span class="sd"> Defaults to 0.</span>
<span class="sd"> """</span>
<span class="bp">self</span><span class="o">.</span><span class="n">callNextEvent</span><span class="o">.</span><span class="n">stop</span><span class="p">(</span><span class="n">wait</span><span class="o">=</span><span class="n">wait</span><span class="p">)</span></div>
<span class="k">def</span> <span class="nf">getCurrentDict</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">currentDict</span>
<div class="viewcode-block" id="Events.sig"><a class="viewcode-back" href="../../../api/classes/events.html#pyo.Events.sig">[docs]</a> <span class="k">def</span> <span class="nf">sig</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Return the audio output signal (sum of all active instances), if defined.</span>
<span class="sd"> The audio output signal of an Events object is the sum of the active</span>
<span class="sd"> instrument instances's attribute whose name is the same as given to</span>
<span class="sd"> the 'signal' key. The number of audio streams in the output signal is</span>
<span class="sd"> determined by the value for the key 'outs', it should match the number</span>
<span class="sd"> of audio streams produced by the instrument.</span>
<span class="sd"> """</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">output</span></div>
<span class="k">def</span> <span class="nf">_processEvent</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">"""Create instrument instances and add them to the active list."""</span>
<span class="n">quarterDur</span> <span class="o">=</span> <span class="mf">60.0</span> <span class="o">/</span> <span class="bp">self</span><span class="p">[</span><span class="s2">"bpm"</span><span class="p">]</span>
<span class="bp">self</span><span class="o">.</span><span class="n">currentDict</span> <span class="o">=</span> <span class="p">{</span>
<span class="s2">"removeFunction"</span><span class="p">:</span> <span class="bp">self</span><span class="o">.</span><span class="n">_remove</span><span class="p">,</span>
<span class="s2">"bpm"</span><span class="p">:</span> <span class="bp">self</span><span class="p">[</span><span class="s2">"bpm"</span><span class="p">],</span>
<span class="s2">"outs"</span><span class="p">:</span> <span class="bp">self</span><span class="p">[</span><span class="s2">"outs"</span><span class="p">],</span>
<span class="s2">"instanceId"</span><span class="p">:</span> <span class="bp">self</span><span class="o">.</span><span class="n">instanceId</span><span class="p">,</span>
<span class="p">}</span>
<span class="c1"># Compute time before next event and current event's duration.</span>
<span class="k">if</span> <span class="bp">self</span><span class="p">[</span><span class="s2">"beat"</span><span class="p">]</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
<span class="n">nextBeat</span> <span class="o">=</span> <span class="n">getValueFromAttribute</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="s2">"beat"</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">currentDict</span><span class="p">)</span>
<span class="k">if</span> <span class="n">nextBeat</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
<span class="n">nextDurMul</span> <span class="o">=</span> <span class="n">getValueFromAttribute</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="s2">"durmul"</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">currentDict</span><span class="p">)</span>
<span class="k">if</span> <span class="n">nextDurMul</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
<span class="n">timeBeforeNextEvent</span> <span class="o">=</span> <span class="n">quarterDur</span> <span class="o">*</span> <span class="n">nextBeat</span>
<span class="bp">self</span><span class="o">.</span><span class="n">currentDict</span><span class="p">[</span><span class="s2">"dur"</span><span class="p">]</span> <span class="o">=</span> <span class="n">timeBeforeNextEvent</span> <span class="o">*</span> <span class="n">nextDurMul</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">nextDur</span> <span class="o">=</span> <span class="n">getValueFromAttribute</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="s2">"dur"</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">currentDict</span><span class="p">)</span>
<span class="k">if</span> <span class="n">nextDur</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
<span class="n">nextDurMul</span> <span class="o">=</span> <span class="n">getValueFromAttribute</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="s2">"durmul"</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">currentDict</span><span class="p">)</span>
<span class="k">if</span> <span class="n">nextDurMul</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
<span class="n">timeBeforeNextEvent</span> <span class="o">=</span> <span class="n">nextDur</span>
<span class="bp">self</span><span class="o">.</span><span class="n">currentDict</span><span class="p">[</span><span class="s2">"dur"</span><span class="p">]</span> <span class="o">=</span> <span class="n">timeBeforeNextEvent</span> <span class="o">*</span> <span class="n">nextDurMul</span>
<span class="k">if</span> <span class="s2">"dur"</span> <span class="ow">not</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">currentDict</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">callNextEvent</span><span class="o">.</span><span class="n">stop</span><span class="p">()</span>
<span class="k">return</span>
<span class="k">else</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">callNextEvent</span><span class="o">.</span><span class="n">time</span> <span class="o">=</span> <span class="n">timeBeforeNextEvent</span>
<span class="n">ending</span> <span class="o">=</span> <span class="kc">False</span>
<span class="c1"># Process event's every other attributes.</span>
<span class="n">proscribe</span> <span class="o">=</span> <span class="p">[</span><span class="s2">"dur"</span><span class="p">,</span> <span class="s2">"beat"</span><span class="p">,</span> <span class="s2">"instr"</span><span class="p">,</span> <span class="s2">"bpm"</span><span class="p">,</span> <span class="s2">"outs"</span><span class="p">,</span> <span class="s2">"midinote"</span><span class="p">,</span> <span class="s2">"degree"</span><span class="p">,</span> <span class="s2">"db"</span><span class="p">,</span> <span class="s2">"midivel"</span><span class="p">,</span> <span class="s2">"atend"</span><span class="p">,</span> <span class="s2">"signal"</span><span class="p">]</span>
<span class="k">for</span> <span class="n">arg</span> <span class="ow">in</span> <span class="p">[</span><span class="n">k</span> <span class="k">for</span> <span class="n">k</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">keys</span><span class="p">()</span> <span class="k">if</span> <span class="n">k</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">proscribe</span><span class="p">]:</span>
<span class="k">if</span> <span class="n">arg</span> <span class="o">==</span> <span class="s2">"freq"</span><span class="p">:</span>
<span class="n">transpo</span> <span class="o">=</span> <span class="n">getValueFromAttribute</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="s2">"transpo"</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">currentDict</span><span class="p">,</span> <span class="n">valueIfNone</span><span class="o">=</span><span class="mi">0</span><span class="p">)</span>
<span class="n">transpo</span> <span class="o">=</span> <span class="n">midiToTranspo</span><span class="p">(</span><span class="n">transpo</span> <span class="o">+</span> <span class="mi">60</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">currentDict</span><span class="p">[</span><span class="s2">"transpo"</span><span class="p">]</span> <span class="o">=</span> <span class="n">transpo</span>
<span class="k">if</span> <span class="bp">self</span><span class="p">[</span><span class="s2">"midinote"</span><span class="p">]</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
<span class="n">midiNote</span> <span class="o">=</span> <span class="n">getValueFromAttribute</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="s2">"midinote"</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">currentDict</span><span class="p">)</span>
<span class="k">if</span> <span class="n">midiNote</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">currentDict</span><span class="p">[</span><span class="s2">"midinote"</span><span class="p">]</span> <span class="o">=</span> <span class="n">midiNote</span>
<span class="bp">self</span><span class="o">.</span><span class="n">currentDict</span><span class="p">[</span><span class="s2">"freq"</span><span class="p">]</span> <span class="o">=</span> <span class="n">midiToHz</span><span class="p">(</span><span class="n">midiNote</span><span class="p">)</span> <span class="o">*</span> <span class="n">transpo</span>
<span class="k">elif</span> <span class="bp">self</span><span class="p">[</span><span class="s2">"midinote"</span><span class="p">]</span><span class="o">.</span><span class="n">stopEventsWhenDone</span><span class="p">:</span>
<span class="n">ending</span> <span class="o">=</span> <span class="kc">True</span>
<span class="k">elif</span> <span class="bp">self</span><span class="p">[</span><span class="s2">"degree"</span><span class="p">]</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
<span class="n">degree</span> <span class="o">=</span> <span class="n">getValueFromAttribute</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="s2">"degree"</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">currentDict</span><span class="p">)</span>
<span class="k">if</span> <span class="n">degree</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
<span class="n">midiNote</span> <span class="o">=</span> <span class="n">degreeToMidiNote</span><span class="p">(</span><span class="n">degree</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">currentDict</span><span class="p">[</span><span class="s2">"midinote"</span><span class="p">]</span> <span class="o">=</span> <span class="n">midiNote</span>
<span class="bp">self</span><span class="o">.</span><span class="n">currentDict</span><span class="p">[</span><span class="s2">"freq"</span><span class="p">]</span> <span class="o">=</span> <span class="n">midiToHz</span><span class="p">(</span><span class="n">midiNote</span><span class="p">)</span> <span class="o">*</span> <span class="n">transpo</span>
<span class="k">elif</span> <span class="bp">self</span><span class="p">[</span><span class="s2">"degree"</span><span class="p">]</span><span class="o">.</span><span class="n">stopEventsWhenDone</span><span class="p">:</span>
<span class="n">ending</span> <span class="o">=</span> <span class="kc">True</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">freq</span> <span class="o">=</span> <span class="n">getValueFromAttribute</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="s2">"freq"</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">currentDict</span><span class="p">)</span>
<span class="k">if</span> <span class="n">freq</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">currentDict</span><span class="p">[</span><span class="s2">"freq"</span><span class="p">]</span> <span class="o">=</span> <span class="n">freq</span> <span class="o">*</span> <span class="n">transpo</span>
<span class="k">elif</span> <span class="bp">self</span><span class="p">[</span><span class="s2">"freq"</span><span class="p">]</span><span class="o">.</span><span class="n">stopEventsWhenDone</span><span class="p">:</span>
<span class="n">ending</span> <span class="o">=</span> <span class="kc">True</span>
<span class="k">elif</span> <span class="n">arg</span> <span class="o">==</span> <span class="s2">"amp"</span><span class="p">:</span>
<span class="k">if</span> <span class="bp">self</span><span class="p">[</span><span class="s2">"db"</span><span class="p">]</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
<span class="n">db</span> <span class="o">=</span> <span class="n">getValueFromAttribute</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="s2">"db"</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">currentDict</span><span class="p">)</span>
<span class="k">if</span> <span class="n">db</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">currentDict</span><span class="p">[</span><span class="s2">"db"</span><span class="p">]</span> <span class="o">=</span> <span class="n">db</span>
<span class="bp">self</span><span class="o">.</span><span class="n">currentDict</span><span class="p">[</span><span class="s2">"amp"</span><span class="p">]</span> <span class="o">=</span> <span class="nb">pow</span><span class="p">(</span><span class="mf">10.0</span><span class="p">,</span> <span class="n">db</span> <span class="o">*</span> <span class="mf">0.05</span><span class="p">)</span>
<span class="k">elif</span> <span class="bp">self</span><span class="p">[</span><span class="s2">"db"</span><span class="p">]</span><span class="o">.</span><span class="n">stopEventsWhenDone</span><span class="p">:</span>
<span class="n">ending</span> <span class="o">=</span> <span class="kc">True</span>
<span class="k">elif</span> <span class="bp">self</span><span class="p">[</span><span class="s2">"midivel"</span><span class="p">]</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
<span class="n">midivel</span> <span class="o">=</span> <span class="n">getValueFromAttribute</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="s2">"midivel"</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">currentDict</span><span class="p">)</span>
<span class="k">if</span> <span class="n">midivel</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
<span class="n">midivel</span> <span class="o">=</span> <span class="nb">max</span><span class="p">(</span><span class="nb">min</span><span class="p">(</span><span class="n">midivel</span><span class="p">,</span> <span class="mi">127</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">currentDict</span><span class="p">[</span><span class="s2">"midivel"</span><span class="p">]</span> <span class="o">=</span> <span class="n">midivel</span>
<span class="bp">self</span><span class="o">.</span><span class="n">currentDict</span><span class="p">[</span><span class="s2">"amp"</span><span class="p">]</span> <span class="o">=</span> <span class="n">midivel</span> <span class="o">/</span> <span class="mf">127.0</span>
<span class="k">elif</span> <span class="bp">self</span><span class="p">[</span><span class="s2">"midivel"</span><span class="p">]</span><span class="o">.</span><span class="n">stopEventsWhenDone</span><span class="p">:</span>
<span class="n">ending</span> <span class="o">=</span> <span class="kc">True</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">amp</span> <span class="o">=</span> <span class="n">getValueFromAttribute</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="s2">"amp"</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">currentDict</span><span class="p">)</span>
<span class="k">if</span> <span class="n">amp</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">currentDict</span><span class="p">[</span><span class="s2">"amp"</span><span class="p">]</span> <span class="o">=</span> <span class="n">amp</span>
<span class="k">elif</span> <span class="bp">self</span><span class="p">[</span><span class="s2">"amp"</span><span class="p">]</span><span class="o">.</span><span class="n">stopEventsWhenDone</span><span class="p">:</span>
<span class="n">ending</span> <span class="o">=</span> <span class="kc">True</span>
<span class="k">elif</span> <span class="bp">self</span><span class="p">[</span><span class="n">arg</span><span class="p">]</span> <span class="o">==</span> <span class="kc">None</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">currentDict</span><span class="p">[</span><span class="n">arg</span><span class="p">]</span> <span class="o">=</span> <span class="kc">None</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">value</span> <span class="o">=</span> <span class="n">getValueFromAttribute</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">arg</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">currentDict</span><span class="p">)</span>
<span class="k">if</span> <span class="n">value</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">currentDict</span><span class="p">[</span><span class="n">arg</span><span class="p">]</span> <span class="o">=</span> <span class="n">value</span>
<span class="k">elif</span> <span class="bp">self</span><span class="p">[</span><span class="n">arg</span><span class="p">]</span><span class="o">.</span><span class="n">stopEventsWhenDone</span><span class="p">:</span>
<span class="n">ending</span> <span class="o">=</span> <span class="kc">True</span>
<span class="k">if</span> <span class="n">ending</span><span class="p">:</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">callAtEnd</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">callAtEnd</span><span class="o">.</span><span class="n">play</span><span class="p">()</span>
<span class="bp">self</span><span class="o">.</span><span class="n">callNextEvent</span><span class="o">.</span><span class="n">stop</span><span class="p">()</span>
<span class="k">else</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">actives</span><span class="p">[</span><span class="bp">self</span><span class="o">.</span><span class="n">instanceId</span><span class="p">]</span> <span class="o">=</span> <span class="bp">self</span><span class="p">[</span><span class="s2">"instr"</span><span class="p">](</span><span class="o">**</span><span class="bp">self</span><span class="o">.</span><span class="n">currentDict</span><span class="p">)</span>
<span class="k">if</span> <span class="bp">self</span><span class="p">[</span><span class="s2">"signal"</span><span class="p">]</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">output</span><span class="o">.</span><span class="n">value</span> <span class="o">=</span> <span class="nb">sum</span><span class="p">(</span>
<span class="p">[</span>
<span class="nb">getattr</span><span class="p">(</span><span class="n">instr</span><span class="p">,</span> <span class="bp">self</span><span class="p">[</span><span class="s2">"signal"</span><span class="p">])</span>
<span class="k">for</span> <span class="n">instr</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">actives</span><span class="o">.</span><span class="n">values</span><span class="p">()</span>
<span class="k">if</span> <span class="nb">hasattr</span><span class="p">(</span><span class="n">instr</span><span class="p">,</span> <span class="bp">self</span><span class="p">[</span><span class="s2">"signal"</span><span class="p">])</span>
<span class="p">]</span>
<span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">instanceId</span> <span class="o">+=</span> <span class="mi">1</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">instanceId</span> <span class="o">>=</span> <span class="bp">self</span><span class="o">.</span><span class="n">maxInstanceId</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">instanceId</span> <span class="o">=</span> <span class="mi">0</span>
<span class="k">def</span> <span class="nf">_remove</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">instanceId</span><span class="p">):</span>
<span class="sd">""" Removes an instrument instance from the active list. """</span>
<span class="k">if</span> <span class="n">instanceId</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">actives</span><span class="p">:</span>
<span class="k">del</span> <span class="bp">self</span><span class="o">.</span><span class="n">actives</span><span class="p">[</span><span class="n">instanceId</span><span class="p">]</span>
<span class="k">if</span> <span class="bp">self</span><span class="p">[</span><span class="s2">"signal"</span><span class="p">]</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">output</span><span class="o">.</span><span class="n">value</span> <span class="o">=</span> <span class="nb">sum</span><span class="p">(</span>
<span class="p">[</span><span class="nb">getattr</span><span class="p">(</span><span class="n">instr</span><span class="p">,</span> <span class="bp">self</span><span class="p">[</span><span class="s2">"signal"</span><span class="p">])</span> <span class="k">for</span> <span class="n">instr</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">actives</span><span class="o">.</span><span class="n">values</span><span class="p">()</span> <span class="k">if</span> <span class="nb">hasattr</span><span class="p">(</span><span class="n">instr</span><span class="p">,</span> <span class="bp">self</span><span class="p">[</span><span class="s2">"signal"</span><span class="p">])]</span>
<span class="p">)</span></div>
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