245 lines
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245 lines
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<h1>Source code for dna_viewer.ui.widgets</h1><div class="highlight"><pre>
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<span></span><span class="kn">from</span> <span class="nn">pathlib</span> <span class="kn">import</span> <span class="n">Path</span>
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<span class="kn">from</span> <span class="nn">typing</span> <span class="kn">import</span> <span class="n">Callable</span><span class="p">,</span> <span class="n">Optional</span>
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<span class="kn">from</span> <span class="nn">PySide2.QtCore</span> <span class="kn">import</span> <span class="n">Qt</span>
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<span class="kn">from</span> <span class="nn">PySide2.QtWidgets</span> <span class="kn">import</span> <span class="p">(</span>
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<span class="n">QFileDialog</span><span class="p">,</span>
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<span class="n">QFrame</span><span class="p">,</span>
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<span class="n">QHBoxLayout</span><span class="p">,</span>
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<span class="n">QLabel</span><span class="p">,</span>
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<span class="n">QLineEdit</span><span class="p">,</span>
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<span class="n">QPushButton</span><span class="p">,</span>
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<span class="n">QWidget</span><span class="p">,</span>
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<span class="p">)</span>
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<div class="viewcode-block" id="QLine"><a class="viewcode-back" href="../../../dna_viewer.ui.html#dna_viewer.ui.widgets.QLine">[docs]</a><span class="k">class</span> <span class="nc">QLine</span><span class="p">(</span><span class="n">QFrame</span><span class="p">):</span>
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<span class="sd">"""A widget for creating a horizontal line"""</span>
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<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">line</span><span class="p">:</span> <span class="n">QFrame</span><span class="o">.</span><span class="n">Shape</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
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<span class="nb">super</span><span class="p">()</span><span class="o">.</span><span class="fm">__init__</span><span class="p">()</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">setFrameShape</span><span class="p">(</span><span class="n">line</span><span class="p">)</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">setFrameShadow</span><span class="p">(</span><span class="n">QFrame</span><span class="o">.</span><span class="n">Sunken</span><span class="p">)</span></div>
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<div class="viewcode-block" id="QHLine"><a class="viewcode-back" href="../../../dna_viewer.ui.html#dna_viewer.ui.widgets.QHLine">[docs]</a><span class="k">class</span> <span class="nc">QHLine</span><span class="p">(</span><span class="n">QLine</span><span class="p">):</span>
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<span class="sd">"""A widget for creating a horizontal line"""</span>
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<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="kc">None</span><span class="p">:</span>
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<span class="nb">super</span><span class="p">()</span><span class="o">.</span><span class="fm">__init__</span><span class="p">(</span><span class="n">QFrame</span><span class="o">.</span><span class="n">HLine</span><span class="p">)</span></div>
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<div class="viewcode-block" id="FileChooser"><a class="viewcode-back" href="../../../dna_viewer.ui.html#dna_viewer.ui.widgets.FileChooser">[docs]</a><span class="k">class</span> <span class="nc">FileChooser</span><span class="p">(</span><span class="n">QWidget</span><span class="p">):</span>
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<span class="sd">"""</span>
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<span class="sd"> A custom widget used for selecting a file path using a FileDialog and an input field</span>
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<span class="sd"> """</span>
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<span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span>
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<span class="bp">self</span><span class="p">,</span>
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<span class="n">label_text</span><span class="p">:</span> <span class="nb">str</span><span class="p">,</span>
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<span class="n">hint</span><span class="p">:</span> <span class="nb">str</span><span class="p">,</span>
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<span class="n">parent</span><span class="p">:</span> <span class="n">Optional</span><span class="p">[</span><span class="n">QWidget</span><span class="p">]</span> <span class="o">=</span> <span class="kc">None</span><span class="p">,</span>
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<span class="n">placeholder</span><span class="p">:</span> <span class="nb">str</span> <span class="o">=</span> <span class="s2">""</span><span class="p">,</span>
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<span class="n">dialog_caption</span><span class="p">:</span> <span class="nb">str</span> <span class="o">=</span> <span class="s2">"Select a file"</span><span class="p">,</span>
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<span class="n">dialog_filter</span><span class="p">:</span> <span class="nb">str</span> <span class="o">=</span> <span class="s2">"All files (*.*)"</span><span class="p">,</span>
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<span class="n">button_text</span><span class="p">:</span> <span class="nb">str</span> <span class="o">=</span> <span class="s2">"..."</span><span class="p">,</span>
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<span class="n">dir_selector</span><span class="p">:</span> <span class="nb">bool</span> <span class="o">=</span> <span class="kc">False</span><span class="p">,</span>
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<span class="n">on_changed</span><span class="p">:</span> <span class="n">Callable</span><span class="p">[[</span><span class="nb">int</span><span class="p">],</span> <span class="kc">None</span><span class="p">]</span> <span class="o">=</span> <span class="kc">None</span><span class="p">,</span>
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<span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
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<span class="nb">super</span><span class="p">()</span><span class="o">.</span><span class="fm">__init__</span><span class="p">(</span><span class="n">parent</span><span class="o">=</span><span class="n">parent</span><span class="p">)</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">_dialog_caption</span> <span class="o">=</span> <span class="n">dialog_caption</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">_dialog_filter</span> <span class="o">=</span> <span class="n">dialog_filter</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">_dir_selector</span> <span class="o">=</span> <span class="n">dir_selector</span>
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<span class="n">layout</span> <span class="o">=</span> <span class="n">QHBoxLayout</span><span class="p">()</span>
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<span class="n">layout</span><span class="o">.</span><span class="n">setMargin</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span>
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<span class="n">fc_label</span> <span class="o">=</span> <span class="n">QLabel</span><span class="p">(</span><span class="n">label_text</span><span class="p">)</span>
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<span class="n">fc_label</span><span class="o">.</span><span class="n">setMinimumHeight</span><span class="p">(</span><span class="mi">32</span><span class="p">)</span>
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<span class="n">fc_label</span><span class="o">.</span><span class="n">setToolTip</span><span class="p">(</span><span class="n">hint</span><span class="p">)</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">fc_text_field</span> <span class="o">=</span> <span class="n">QLineEdit</span><span class="p">()</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">fc_text_field</span><span class="o">.</span><span class="n">setAlignment</span><span class="p">(</span><span class="n">Qt</span><span class="o">.</span><span class="n">AlignLeft</span><span class="p">)</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">fc_text_field</span><span class="o">.</span><span class="n">setPlaceholderText</span><span class="p">(</span><span class="n">placeholder</span><span class="p">)</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">fc_text_field</span><span class="o">.</span><span class="n">textChanged</span><span class="o">.</span><span class="n">connect</span><span class="p">(</span><span class="n">on_changed</span><span class="p">)</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">fc_text_field</span><span class="o">.</span><span class="n">setToolTip</span><span class="p">(</span><span class="n">hint</span><span class="p">)</span>
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<span class="n">fc_btn</span> <span class="o">=</span> <span class="n">QPushButton</span><span class="p">(</span><span class="n">button_text</span><span class="p">)</span>
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<span class="n">fc_btn</span><span class="o">.</span><span class="n">setToolTip</span><span class="p">(</span><span class="n">hint</span><span class="p">)</span>
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<span class="n">layout</span><span class="o">.</span><span class="n">addWidget</span><span class="p">(</span><span class="n">fc_label</span><span class="p">)</span>
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<span class="n">layout</span><span class="o">.</span><span class="n">addWidget</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">fc_text_field</span><span class="p">)</span>
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<span class="n">layout</span><span class="o">.</span><span class="n">addWidget</span><span class="p">(</span><span class="n">fc_btn</span><span class="p">)</span>
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<span class="n">fc_btn</span><span class="o">.</span><span class="n">clicked</span><span class="o">.</span><span class="n">connect</span><span class="p">(</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">open_dialog</span><span class="p">,</span>
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<span class="p">)</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">setLayout</span><span class="p">(</span><span class="n">layout</span><span class="p">)</span>
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<div class="viewcode-block" id="FileChooser.get_file_path"><a class="viewcode-back" href="../../../dna_viewer.ui.html#dna_viewer.ui.widgets.FileChooser.get_file_path">[docs]</a> <span class="k">def</span> <span class="nf">get_file_path</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span> <span class="o">-></span> <span class="nb">str</span><span class="p">:</span>
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<span class="sd">"""</span>
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<span class="sd"> Gets the file path from the text field</span>
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<span class="sd"> @rtype: str</span>
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<span class="sd"> @returns: The file path contained in the text field</span>
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<span class="sd"> """</span>
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<span class="n">path</span> <span class="o">=</span> <span class="nb">str</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">fc_text_field</span><span class="o">.</span><span class="n">text</span><span class="p">())</span>
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<span class="k">if</span> <span class="n">path</span> <span class="ow">and</span> <span class="n">Path</span><span class="p">(</span><span class="n">path</span><span class="o">.</span><span class="n">strip</span><span class="p">())</span><span class="o">.</span><span class="n">exists</span><span class="p">():</span>
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<span class="k">return</span> <span class="n">path</span>
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<span class="k">return</span> <span class="kc">None</span></div>
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<div class="viewcode-block" id="FileChooser.open_dialog"><a class="viewcode-back" href="../../../dna_viewer.ui.html#dna_viewer.ui.widgets.FileChooser.open_dialog">[docs]</a> <span class="k">def</span> <span class="nf">open_dialog</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span> <span class="o">-></span> <span class="kc">None</span><span class="p">:</span>
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<span class="sd">"""Opens a file dialog, when a path is chosen, the text field gets filled with its value"""</span>
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<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">_dir_selector</span><span class="p">:</span>
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<span class="n">file_name</span><span class="p">,</span> <span class="n">_</span> <span class="o">=</span> <span class="n">QFileDialog</span><span class="o">.</span><span class="n">getExistingDirectory</span><span class="p">(</span>
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<span class="bp">self</span><span class="p">,</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">_dialog_caption</span><span class="p">,</span>
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<span class="s2">""</span><span class="p">,</span>
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<span class="n">QFileDialog</span><span class="o">.</span><span class="n">Option</span><span class="o">.</span><span class="n">ShowDirsOnly</span><span class="p">,</span>
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<span class="p">)</span>
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<span class="k">if</span> <span class="n">file_name</span><span class="p">:</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">fc_text_field</span><span class="o">.</span><span class="n">setText</span><span class="p">(</span><span class="n">file_name</span><span class="p">)</span>
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<span class="k">else</span><span class="p">:</span>
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<span class="n">file_name</span><span class="p">,</span> <span class="n">_</span> <span class="o">=</span> <span class="n">QFileDialog</span><span class="o">.</span><span class="n">getOpenFileName</span><span class="p">(</span>
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<span class="bp">self</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">_dialog_caption</span><span class="p">,</span> <span class="s2">""</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">_dialog_filter</span>
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<span class="p">)</span>
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<span class="k">if</span> <span class="n">file_name</span><span class="p">:</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">fc_text_field</span><span class="o">.</span><span class="n">setText</span><span class="p">(</span><span class="n">file_name</span><span class="p">)</span></div></div>
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</pre></div>
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<hr/>
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