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51  <h1>Source code for sas.perspectives.calculator.calculator_widgets</h1><div class="highlight"><pre>
52<span class="sd">&quot;&quot;&quot;</span>
53<span class="sd">This software was developed by the University of Tennessee as part of the</span>
54<span class="sd">Distributed Data Analysis of Neutron Scattering Experiments (DANSE)</span>
55<span class="sd">project funded by the US National Science Foundation. </span>
56
57<span class="sd">See the license text in license.txt</span>
58
59<span class="sd">copyright 2009, University of Tennessee</span>
60<span class="sd">&quot;&quot;&quot;</span>
61<span class="kn">import</span> <span class="nn">wx</span>
62<span class="kn">import</span> <span class="nn">sys</span>
63<span class="n">CHILD_FRAME</span> <span class="o">=</span> <span class="n">wx</span><span class="o">.</span><span class="n">MDIChildFrame</span>
64<span class="k">if</span> <span class="n">sys</span><span class="o">.</span><span class="n">platform</span><span class="o">.</span><span class="n">count</span><span class="p">(</span><span class="s">&quot;win32&quot;</span><span class="p">)</span> <span class="o">&lt;</span> <span class="mi">1</span><span class="p">:</span>
65    <span class="k">if</span> <span class="n">sys</span><span class="o">.</span><span class="n">platform</span><span class="o">.</span><span class="n">count</span><span class="p">(</span><span class="s">&quot;darwin&quot;</span><span class="p">)</span> <span class="o">&lt;</span> <span class="mi">1</span><span class="p">:</span>
66        <span class="n">CHILD_FRAME</span> <span class="o">=</span> <span class="n">wx</span><span class="o">.</span><span class="n">Frame</span>
67
68<div class="viewcode-block" id="InputTextCtrl"><a class="viewcode-back" href="../../../../dev/api/sas.perspectives.calculator.html#sas.perspectives.calculator.calculator_widgets.InputTextCtrl">[docs]</a><span class="k">class</span> <span class="nc">InputTextCtrl</span><span class="p">(</span><span class="n">wx</span><span class="o">.</span><span class="n">TextCtrl</span><span class="p">):</span>
69    <span class="sd">&quot;&quot;&quot;</span>
70<span class="sd">        Text control for model and fit parameters.</span>
71<span class="sd">        Binds the appropriate events for user interactions.</span>
72<span class="sd">    &quot;&quot;&quot;</span>
73    <span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">parent</span> <span class="o">=</span> <span class="bp">None</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">kwds</span><span class="p">):</span>
74       
75        <span class="n">wx</span><span class="o">.</span><span class="n">TextCtrl</span><span class="o">.</span><span class="n">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">parent</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">kwds</span><span class="p">)</span>
76       
77        <span class="c">## Set to True when the mouse is clicked while the whole </span>
78        <span class="c">#string is selected</span>
79        <span class="bp">self</span><span class="o">.</span><span class="n">full_selection</span> <span class="o">=</span> <span class="bp">False</span>
80        <span class="c">## Call back for EVT_SET_FOCUS events</span>
81        <span class="n">_on_set_focus_callback</span> <span class="o">=</span> <span class="bp">None</span>
82        <span class="c"># Bind appropriate events</span>
83        <span class="bp">self</span><span class="o">.</span><span class="n">Bind</span><span class="p">(</span><span class="n">wx</span><span class="o">.</span><span class="n">EVT_LEFT_UP</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">_highlight_text</span><span class="p">)</span>
84        <span class="bp">self</span><span class="o">.</span><span class="n">Bind</span><span class="p">(</span><span class="n">wx</span><span class="o">.</span><span class="n">EVT_SET_FOCUS</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">_on_set_focus</span><span class="p">)</span>
85        <span class="bp">self</span><span class="o">.</span><span class="n">Bind</span><span class="p">(</span><span class="n">wx</span><span class="o">.</span><span class="n">EVT_TEXT_ENTER</span><span class="p">,</span> <span class="n">parent</span><span class="o">.</span><span class="n">_onparamEnter</span> <span class="p">)</span>
86
87    <span class="k">def</span> <span class="nf">_on_set_focus</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">event</span><span class="p">):</span>
88        <span class="sd">&quot;&quot;&quot;</span>
89<span class="sd">            Catch when the text control is set in focus to highlight the whole</span>
90<span class="sd">            text if necessary</span>
91<span class="sd">            @param event: mouse event</span>
92<span class="sd">        &quot;&quot;&quot;</span>
93        <span class="n">event</span><span class="o">.</span><span class="n">Skip</span><span class="p">()</span>
94        <span class="bp">self</span><span class="o">.</span><span class="n">full_selection</span> <span class="o">=</span> <span class="bp">True</span>
95       
96    <span class="k">def</span> <span class="nf">_highlight_text</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">event</span><span class="p">):</span>
97        <span class="sd">&quot;&quot;&quot;</span>
98<span class="sd">            Highlight text of a TextCtrl only of no text has be selected</span>
99<span class="sd">            @param event: mouse event</span>
100<span class="sd">        &quot;&quot;&quot;</span>
101        <span class="c"># Make sure the mouse event is available to other listeners</span>
102        <span class="n">event</span><span class="o">.</span><span class="n">Skip</span><span class="p">()</span>
103        <span class="n">control</span>  <span class="o">=</span> <span class="n">event</span><span class="o">.</span><span class="n">GetEventObject</span><span class="p">()</span>
104        <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">full_selection</span><span class="p">:</span>
105            <span class="bp">self</span><span class="o">.</span><span class="n">full_selection</span> <span class="o">=</span> <span class="bp">False</span>
106            <span class="c"># Check that we have a TextCtrl</span>
107            <span class="k">if</span> <span class="nb">issubclass</span><span class="p">(</span><span class="n">control</span><span class="o">.</span><span class="n">__class__</span><span class="p">,</span> <span class="n">wx</span><span class="o">.</span><span class="n">TextCtrl</span><span class="p">):</span>
108                <span class="c"># Check whether text has been selected, </span>
109                <span class="c"># if not, select the whole string</span>
110                <span class="p">(</span><span class="n">start</span><span class="p">,</span> <span class="n">end</span><span class="p">)</span> <span class="o">=</span> <span class="n">control</span><span class="o">.</span><span class="n">GetSelection</span><span class="p">()</span>
111                <span class="k">if</span> <span class="n">start</span> <span class="o">==</span> <span class="n">end</span><span class="p">:</span>
112                    <span class="n">control</span><span class="o">.</span><span class="n">SetSelection</span><span class="p">(</span><span class="o">-</span><span class="mi">1</span><span class="p">,</span> <span class="o">-</span><span class="mi">1</span><span class="p">)</span>
113
114    </div>
115<div class="viewcode-block" id="InterActiveOutputTextCtrl"><a class="viewcode-back" href="../../../../dev/api/sas.perspectives.calculator.html#sas.perspectives.calculator.calculator_widgets.InterActiveOutputTextCtrl">[docs]</a><span class="k">class</span> <span class="nc">InterActiveOutputTextCtrl</span><span class="p">(</span><span class="n">wx</span><span class="o">.</span><span class="n">TextCtrl</span><span class="p">):</span>
116    <span class="sd">&quot;&quot;&quot;</span>
117<span class="sd">        Text control used to display outputs.</span>
118<span class="sd">        No editing allowed. The background is </span>
119<span class="sd">        grayed out. User can&#39;t select text.</span>
120<span class="sd">    &quot;&quot;&quot;</span>
121    <span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="o">*</span><span class="n">args</span><span class="p">,</span> <span class="o">**</span><span class="n">kwds</span><span class="p">):</span>
122        <span class="n">wx</span><span class="o">.</span><span class="n">TextCtrl</span><span class="o">.</span><span class="n">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="o">*</span><span class="n">args</span><span class="p">,</span> <span class="o">**</span><span class="n">kwds</span><span class="p">)</span>
123        <span class="bp">self</span><span class="o">.</span><span class="n">SetEditable</span><span class="p">(</span><span class="bp">False</span><span class="p">)</span>
124        <span class="bp">self</span><span class="o">.</span><span class="n">SetBackgroundColour</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">GetParent</span><span class="p">()</span><span class="o">.</span><span class="n">GetBackgroundColour</span><span class="p">())</span>
125        </div>
126<div class="viewcode-block" id="OutputTextCtrl"><a class="viewcode-back" href="../../../../dev/api/sas.perspectives.calculator.html#sas.perspectives.calculator.calculator_widgets.OutputTextCtrl">[docs]</a><span class="k">class</span> <span class="nc">OutputTextCtrl</span><span class="p">(</span><span class="n">InterActiveOutputTextCtrl</span><span class="p">):</span>
127    <span class="sd">&quot;&quot;&quot;</span>
128<span class="sd">        Text control used to display outputs.</span>
129<span class="sd">        No editing allowed. The background is </span>
130<span class="sd">        grayed out. User can&#39;t select text.</span>
131<span class="sd">    &quot;&quot;&quot;</span>
132    <span class="k">def</span> <span class="nf">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="o">*</span><span class="n">args</span><span class="p">,</span> <span class="o">**</span><span class="n">kwds</span><span class="p">):</span>
133        <span class="n">InterActiveOutputTextCtrl</span><span class="o">.</span><span class="n">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="o">*</span><span class="n">args</span><span class="p">,</span> <span class="o">**</span><span class="n">kwds</span><span class="p">)</span>
134        <span class="bp">self</span><span class="o">.</span><span class="n">SetEditable</span><span class="p">(</span><span class="bp">False</span><span class="p">)</span>
135        <span class="bp">self</span><span class="o">.</span><span class="n">SetBackgroundColour</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">GetParent</span><span class="p">()</span><span class="o">.</span><span class="n">GetBackgroundColour</span><span class="p">())</span>
136       
137        <span class="c"># Bind to mouse event to avoid text highlighting</span>
138        <span class="c"># The event will be skipped once the call-back</span>
139        <span class="c"># is called.</span>
140        <span class="bp">self</span><span class="o">.</span><span class="n">Bind</span><span class="p">(</span><span class="n">wx</span><span class="o">.</span><span class="n">EVT_MOUSE_EVENTS</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">_click</span><span class="p">)</span>
141       
142    <span class="k">def</span> <span class="nf">_click</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">event</span><span class="p">):</span>
143        <span class="sd">&quot;&quot;&quot;</span>
144<span class="sd">            Prevent further handling of the mouse event</span>
145<span class="sd">            by not calling Skip().</span>
146<span class="sd">        &quot;&quot;&quot;</span> 
147        <span class="k">pass</span>
148
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