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<a href="radiobox_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno"> 1</span><span class="preprocessor">#include &lt;stddef.h&gt;</span> <span class="comment">// for size_t</span></div>
<div class="line"><a id="l00002" name="l00002"></a><span class="lineno"> 2</span><span class="preprocessor">#include &lt;algorithm&gt;</span> <span class="comment">// for max, min</span></div>
<div class="line"><a id="l00003" name="l00003"></a><span class="lineno"> 3</span><span class="preprocessor">#include &lt;functional&gt;</span> <span class="comment">// for function</span></div>
<div class="line"><a id="l00004" name="l00004"></a><span class="lineno"> 4</span><span class="preprocessor">#include &lt;memory&gt;</span> <span class="comment">// for shared_ptr, allocator_traits&lt;&gt;::value_type</span></div>
<div class="line"><a id="l00005" name="l00005"></a><span class="lineno"> 5</span><span class="preprocessor">#include &lt;string&gt;</span> <span class="comment">// for string</span></div>
<div class="line"><a id="l00006" name="l00006"></a><span class="lineno"> 6</span><span class="preprocessor">#include &lt;utility&gt;</span> <span class="comment">// for move</span></div>
<div class="line"><a id="l00007" name="l00007"></a><span class="lineno"> 7</span><span class="preprocessor">#include &lt;vector&gt;</span> <span class="comment">// for vector</span></div>
<div class="line"><a id="l00008" name="l00008"></a><span class="lineno"> 8</span> </div>
<div class="line"><a id="l00009" name="l00009"></a><span class="lineno"> 9</span><span class="preprocessor">#include &quot;<a class="code" href="captured__mouse_8hpp.html">ftxui/component/captured_mouse.hpp</a>&quot;</span> <span class="comment">// for CapturedMouse</span></div>
<div class="line"><a id="l00010" name="l00010"></a><span class="lineno"> 10</span><span class="preprocessor">#include &quot;<a class="code" href="component_8hpp.html">ftxui/component/component.hpp</a>&quot;</span> <span class="comment">// for Make, Radiobox</span></div>
<div class="line"><a id="l00011" name="l00011"></a><span class="lineno"> 11</span><span class="preprocessor">#include &quot;<a class="code" href="component__base_8hpp.html">ftxui/component/component_base.hpp</a>&quot;</span> <span class="comment">// for ComponentBase</span></div>
<div class="line"><a id="l00012" name="l00012"></a><span class="lineno"> 12</span><span class="preprocessor">#include &quot;<a class="code" href="component__options_8hpp.html">ftxui/component/component_options.hpp</a>&quot;</span> <span class="comment">// for RadioboxOption</span></div>
<div class="line"><a id="l00013" name="l00013"></a><span class="lineno"> 13</span><span class="preprocessor">#include &quot;<a class="code" href="event_8hpp.html">ftxui/component/event.hpp</a>&quot;</span> <span class="comment">// for Event, Event::ArrowDown, Event::ArrowUp, Event::Return, Event::Tab, Event::TabReverse</span></div>
<div class="line"><a id="l00014" name="l00014"></a><span class="lineno"> 14</span><span class="preprocessor">#include &quot;<a class="code" href="mouse_8hpp.html">ftxui/component/mouse.hpp</a>&quot;</span> <span class="comment">// for Mouse, Mouse::Left, Mouse::Pressed</span></div>
<div class="line"><a id="l00015" name="l00015"></a><span class="lineno"> 15</span><span class="preprocessor">#include &quot;<a class="code" href="screen__interactive_8hpp.html">ftxui/component/screen_interactive.hpp</a>&quot;</span> <span class="comment">// for Component</span></div>
<div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span><span class="preprocessor">#include &quot;<a class="code" href="elements_8hpp.html">ftxui/dom/elements.hpp</a>&quot;</span> <span class="comment">// for Element, operator|, text, hbox, reflect, vbox, focus, nothing, select</span></div>
<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span><span class="preprocessor">#include &quot;<a class="code" href="box_8hpp.html">ftxui/screen/box.hpp</a>&quot;</span> <span class="comment">// for Box</span></div>
<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span><span class="preprocessor">#include &quot;<a class="code" href="ref_8hpp.html">ftxui/util/ref.hpp</a>&quot;</span> <span class="comment">// for Ref</span></div>
<div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span> </div>
<div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span><span class="keyword">namespace </span><a class="code hl_namespace" href="namespaceftxui.html">ftxui</a> {</div>
<div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span> </div>
<div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span><span class="keyword">namespace </span>{<span class="comment"></span></div>
<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span><span class="comment">/// @brief A list of selectable element. One and only one can be selected at</span></div>
<div class="line"><a id="l00024" name="l00024"></a><span class="lineno"> 24</span><span class="comment">/// the same time.</span></div>
<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span><span class="comment">/// @ingroup component</span></div>
<div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span><span class="comment"></span><span class="keyword">class </span>RadioboxBase : <span class="keyword">public</span> ComponentBase {</div>
<div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span> RadioboxBase(ConstStringListRef entries,</div>
<div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span> <span class="keywordtype">int</span>* selected,</div>
<div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span> Ref&lt;RadioboxOption&gt; option)</div>
<div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span> : entries_(entries), selected_(selected), option_(std::move(option)) {</div>
<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span><span class="preprocessor">#if defined(FTXUI_MICROSOFT_TERMINAL_FALLBACK)</span></div>
<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span> <span class="comment">// Microsoft terminal do not use fonts able to render properly the default</span></div>
<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span> <span class="comment">// radiobox glyph.</span></div>
<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span> <span class="keywordflow">if</span> (option_-&gt;style_checked == <span class="stringliteral">&quot;◉ &quot;</span>)</div>
<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span> option_-&gt;style_checked = <span class="stringliteral">&quot;(*)&quot;</span>;</div>
<div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span> if (option_-&gt;style_unchecked == <span class="stringliteral">&quot;○ &quot;</span>)</div>
<div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span> option_-&gt;style_unchecked = <span class="stringliteral">&quot;( )&quot;</span>;</div>
<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span>#endif</div>
<div class="line"><a id="l00040" name="l00040"></a><span class="lineno"> 40</span> hovered_ = *selected_;</div>
<div class="line"><a id="l00041" name="l00041"></a><span class="lineno"> 41</span> }</div>
<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span> </div>
<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span> <span class="keyword">private</span>:</div>
<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span> <a class="code hl_typedef" href="namespaceftxui.html#a2bc31f2d685189e5c61d2293a1f51b4f">Element</a> <a class="code hl_function" href="namespaceftxui.html#ad4b8aa9392f56ba41e2b421e046a7d83">Render</a>()<span class="keyword"> override </span>{</div>
<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span> <a class="code hl_typedef" href="namespaceftxui.html#a5d4aa06ca6cc6a72e981bd5386f93f0a">Elements</a> elements;</div>
<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span> <span class="keywordtype">bool</span> is_menu_focused = Focused();</div>
<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span> boxes_.resize(entries_.size());</div>
<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span> <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i &lt; entries_.size(); ++i) {</div>
<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"> 49</span> <span class="keywordtype">bool</span> is_focused = (focused_entry() == int(i)) &amp;&amp; is_menu_focused;</div>
<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span> <span class="keywordtype">bool</span> is_selected = (hovered_ == int(i));</div>
<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span> </div>
<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span> <span class="keyword">auto</span> style = is_selected ? (is_focused ? option_-&gt;style_selected_focused</div>
<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span> : option_-&gt;style_selected)</div>
<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span> : (is_focused ? option_-&gt;style_focused</div>
<div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span> : option_-&gt;style_normal);</div>
<div class="line"><a id="l00056" name="l00056"></a><span class="lineno"> 56</span> <span class="keyword">auto</span> focus_management = !is_selected ? <a class="code hl_function" href="namespaceftxui.html#a1bfd3885ac8b40dc82a1103725003c07">nothing</a></div>
<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span> : is_menu_focused ? <a class="code hl_function" href="namespaceftxui.html#a52ee73ca2fb34afb6e6f25ac7df04b0e">focus</a></div>
<div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span> : <a class="code hl_function" href="namespaceftxui.html#af0a483ef6e8a00023755c4637a1fcb9d">select</a>;</div>
<div class="line"><a id="l00059" name="l00059"></a><span class="lineno"> 59</span> </div>
<div class="line"><a id="l00060" name="l00060"></a><span class="lineno"> 60</span> <span class="keyword">const</span> std::string&amp; symbol = *selected_ == int(i)</div>
<div class="line"><a id="l00061" name="l00061"></a><span class="lineno"> 61</span> ? option_-&gt;style_checked</div>
<div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span> : option_-&gt;style_unchecked;</div>
<div class="line"><a id="l00063" name="l00063"></a><span class="lineno"> 63</span> elements.push_back(<a class="code hl_function" href="namespaceftxui.html#a552ba6d33b3c9bec586b99fba4c243ac">hbox</a>(<a class="code hl_function" href="namespaceftxui.html#a75baaa2734ed76a9f478beaafa87ae57">text</a>(symbol), <a class="code hl_function" href="namespaceftxui.html#a75baaa2734ed76a9f478beaafa87ae57">text</a>(entries_[i]) | style) |</div>
<div class="line"><a id="l00064" name="l00064"></a><span class="lineno"> 64</span> focus_management | <a class="code hl_function" href="namespaceftxui.html#aaff8245861617a3d9e846e99de582a63">reflect</a>(boxes_[i]));</div>
<div class="line"><a id="l00065" name="l00065"></a><span class="lineno"> 65</span> }</div>
<div class="line"><a id="l00066" name="l00066"></a><span class="lineno"> 66</span> <span class="keywordflow">return</span> <a class="code hl_function" href="namespaceftxui.html#afd28058f0ccbbdf34691a85a7cc9b2e3">vbox</a>(std::move(elements)) | <a class="code hl_function" href="namespaceftxui.html#aaff8245861617a3d9e846e99de582a63">reflect</a>(box_);</div>
<div class="line"><a id="l00067" name="l00067"></a><span class="lineno"> 67</span> }</div>
<div class="line"><a id="l00068" name="l00068"></a><span class="lineno"> 68</span> </div>
<div class="line"><a id="l00069" name="l00069"></a><span class="lineno"> 69</span> <span class="keywordtype">bool</span> OnEvent(Event event)<span class="keyword"> override </span>{</div>
<div class="line"><a id="l00070" name="l00070"></a><span class="lineno"> 70</span> <span class="keywordflow">if</span> (!CaptureMouse(event))</div>
<div class="line"><a id="l00071" name="l00071"></a><span class="lineno"> 71</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a id="l00072" name="l00072"></a><span class="lineno"> 72</span> </div>
<div class="line"><a id="l00073" name="l00073"></a><span class="lineno"> 73</span> <span class="keywordflow">if</span> (event.is_mouse())</div>
<div class="line"><a id="l00074" name="l00074"></a><span class="lineno"> 74</span> <span class="keywordflow">return</span> OnMouseEvent(event);</div>
<div class="line"><a id="l00075" name="l00075"></a><span class="lineno"> 75</span> </div>
<div class="line"><a id="l00076" name="l00076"></a><span class="lineno"> 76</span> <span class="keywordflow">if</span> (Focused()) {</div>
<div class="line"><a id="l00077" name="l00077"></a><span class="lineno"> 77</span> <span class="keywordtype">int</span> old_hovered = hovered_;</div>
<div class="line"><a id="l00078" name="l00078"></a><span class="lineno"> 78</span> <span class="keywordflow">if</span> (event == <a class="code hl_variable" href="structftxui_1_1Event.html#a916bd0ae3c86941b660d9a07980bb0c9">Event::ArrowUp</a> || event == Event::Character(<span class="charliteral">&#39;k&#39;</span>))</div>
<div class="line"><a id="l00079" name="l00079"></a><span class="lineno"> 79</span> (hovered_)--;</div>
<div class="line"><a id="l00080" name="l00080"></a><span class="lineno"> 80</span> <span class="keywordflow">if</span> (event == <a class="code hl_variable" href="structftxui_1_1Event.html#a9d2a831cf68bf2185a3c56c2e09b2f23">Event::ArrowDown</a> || event == Event::Character(<span class="charliteral">&#39;j&#39;</span>))</div>
<div class="line"><a id="l00081" name="l00081"></a><span class="lineno"> 81</span> (hovered_)++;</div>
<div class="line"><a id="l00082" name="l00082"></a><span class="lineno"> 82</span> <span class="keywordflow">if</span> (event == <a class="code hl_variable" href="structftxui_1_1Event.html#a94bd9090f8bf9eea776c867113afb86c">Event::Tab</a> &amp;&amp; entries_.size())</div>
<div class="line"><a id="l00083" name="l00083"></a><span class="lineno"> 83</span> hovered_ = (hovered_ + 1) % entries_.size();</div>
<div class="line"><a id="l00084" name="l00084"></a><span class="lineno"> 84</span> <span class="keywordflow">if</span> (event == <a class="code hl_variable" href="structftxui_1_1Event.html#a00f063998a734c338531f38c5e3d6428">Event::TabReverse</a> &amp;&amp; entries_.size())</div>
<div class="line"><a id="l00085" name="l00085"></a><span class="lineno"> 85</span> hovered_ = (hovered_ + entries_.size() - 1) % entries_.size();</div>
<div class="line"><a id="l00086" name="l00086"></a><span class="lineno"> 86</span> </div>
<div class="line"><a id="l00087" name="l00087"></a><span class="lineno"> 87</span> hovered_ = std::max(0, std::min(<span class="keywordtype">int</span>(entries_.size()) - 1, hovered_));</div>
<div class="line"><a id="l00088" name="l00088"></a><span class="lineno"> 88</span> </div>
<div class="line"><a id="l00089" name="l00089"></a><span class="lineno"> 89</span> <span class="keywordflow">if</span> (hovered_ != old_hovered) {</div>
<div class="line"><a id="l00090" name="l00090"></a><span class="lineno"> 90</span> focused_entry() = hovered_;</div>
<div class="line"><a id="l00091" name="l00091"></a><span class="lineno"> 91</span> option_-&gt;on_change();</div>
<div class="line"><a id="l00092" name="l00092"></a><span class="lineno"> 92</span> <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a id="l00093" name="l00093"></a><span class="lineno"> 93</span> }</div>
<div class="line"><a id="l00094" name="l00094"></a><span class="lineno"> 94</span> }</div>
<div class="line"><a id="l00095" name="l00095"></a><span class="lineno"> 95</span> </div>
<div class="line"><a id="l00096" name="l00096"></a><span class="lineno"> 96</span> <span class="keywordflow">if</span> (event == Event::Character(<span class="charliteral">&#39; &#39;</span>) || event == <a class="code hl_variable" href="structftxui_1_1Event.html#ad3ab0b5bcc923c4b994080d45b97e36b">Event::Return</a>) {</div>
<div class="line"><a id="l00097" name="l00097"></a><span class="lineno"> 97</span> *selected_ = hovered_;</div>
<div class="line"><a id="l00098" name="l00098"></a><span class="lineno"> 98</span> <span class="comment">//*selected_ = focused_entry();</span></div>
<div class="line"><a id="l00099" name="l00099"></a><span class="lineno"> 99</span> option_-&gt;on_change();</div>
<div class="line"><a id="l00100" name="l00100"></a><span class="lineno"> 100</span> }</div>
<div class="line"><a id="l00101" name="l00101"></a><span class="lineno"> 101</span> </div>
<div class="line"><a id="l00102" name="l00102"></a><span class="lineno"> 102</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a id="l00103" name="l00103"></a><span class="lineno"> 103</span> }</div>
<div class="line"><a id="l00104" name="l00104"></a><span class="lineno"> 104</span> </div>
<div class="line"><a id="l00105" name="l00105"></a><span class="lineno"> 105</span> <span class="keywordtype">bool</span> OnMouseEvent(Event event) {</div>
<div class="line"><a id="l00106" name="l00106"></a><span class="lineno"> 106</span> <span class="keywordflow">if</span> (event.mouse().button == <a class="code hl_enumvalue" href="structftxui_1_1Mouse.html#a03bfec859eac87be20f8952c1eb89de0afd8a27c9d7eac3486f6fbd2d608da0db">Mouse::WheelDown</a> ||</div>
<div class="line"><a id="l00107" name="l00107"></a><span class="lineno"> 107</span> event.mouse().button == <a class="code hl_enumvalue" href="structftxui_1_1Mouse.html#a03bfec859eac87be20f8952c1eb89de0ab51f2e2fc1697565b732263f86a976d6">Mouse::WheelUp</a>) {</div>
<div class="line"><a id="l00108" name="l00108"></a><span class="lineno"> 108</span> <span class="keywordflow">return</span> OnMouseWheel(event);</div>
<div class="line"><a id="l00109" name="l00109"></a><span class="lineno"> 109</span> }</div>
<div class="line"><a id="l00110" name="l00110"></a><span class="lineno"> 110</span> </div>
<div class="line"><a id="l00111" name="l00111"></a><span class="lineno"> 111</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; int(boxes_.size()); ++i) {</div>
<div class="line"><a id="l00112" name="l00112"></a><span class="lineno"> 112</span> <span class="keywordflow">if</span> (!boxes_[i].Contain(event.mouse().x, event.mouse().y))</div>
<div class="line"><a id="l00113" name="l00113"></a><span class="lineno"> 113</span> <span class="keywordflow">continue</span>;</div>
<div class="line"><a id="l00114" name="l00114"></a><span class="lineno"> 114</span> </div>
<div class="line"><a id="l00115" name="l00115"></a><span class="lineno"> 115</span> TakeFocus();</div>
<div class="line"><a id="l00116" name="l00116"></a><span class="lineno"> 116</span> focused_entry() = i;</div>
<div class="line"><a id="l00117" name="l00117"></a><span class="lineno"> 117</span> <span class="keywordflow">if</span> (event.mouse().button == <a class="code hl_enumvalue" href="structftxui_1_1Mouse.html#a03bfec859eac87be20f8952c1eb89de0a9d4d8b0b72fc2659da772d761a3c5ecb">Mouse::Left</a> &amp;&amp;</div>
<div class="line"><a id="l00118" name="l00118"></a><span class="lineno"> 118</span> event.mouse().motion == <a class="code hl_enumvalue" href="structftxui_1_1Mouse.html#a099c889d2b948b264c7a665b66e3a9b6ad9417ac74f0134b9577d1d85cf422c25">Mouse::Released</a>) {</div>
<div class="line"><a id="l00119" name="l00119"></a><span class="lineno"> 119</span> <span class="keywordflow">if</span> (*selected_ != i) {</div>
<div class="line"><a id="l00120" name="l00120"></a><span class="lineno"> 120</span> *selected_ = i;</div>
<div class="line"><a id="l00121" name="l00121"></a><span class="lineno"> 121</span> option_-&gt;on_change();</div>
<div class="line"><a id="l00122" name="l00122"></a><span class="lineno"> 122</span> }</div>
<div class="line"><a id="l00123" name="l00123"></a><span class="lineno"> 123</span> </div>
<div class="line"><a id="l00124" name="l00124"></a><span class="lineno"> 124</span> <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a id="l00125" name="l00125"></a><span class="lineno"> 125</span> }</div>
<div class="line"><a id="l00126" name="l00126"></a><span class="lineno"> 126</span> }</div>
<div class="line"><a id="l00127" name="l00127"></a><span class="lineno"> 127</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a id="l00128" name="l00128"></a><span class="lineno"> 128</span> }</div>
<div class="line"><a id="l00129" name="l00129"></a><span class="lineno"> 129</span> </div>
<div class="line"><a id="l00130" name="l00130"></a><span class="lineno"> 130</span> <span class="keywordtype">bool</span> OnMouseWheel(Event event) {</div>
<div class="line"><a id="l00131" name="l00131"></a><span class="lineno"> 131</span> <span class="keywordflow">if</span> (!box_.Contain(event.mouse().x, event.mouse().y))</div>
<div class="line"><a id="l00132" name="l00132"></a><span class="lineno"> 132</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a id="l00133" name="l00133"></a><span class="lineno"> 133</span> </div>
<div class="line"><a id="l00134" name="l00134"></a><span class="lineno"> 134</span> <span class="keywordtype">int</span> old_hovered = hovered_;</div>
<div class="line"><a id="l00135" name="l00135"></a><span class="lineno"> 135</span> </div>
<div class="line"><a id="l00136" name="l00136"></a><span class="lineno"> 136</span> <span class="keywordflow">if</span> (event.mouse().button == <a class="code hl_enumvalue" href="structftxui_1_1Mouse.html#a03bfec859eac87be20f8952c1eb89de0ab51f2e2fc1697565b732263f86a976d6">Mouse::WheelUp</a>)</div>
<div class="line"><a id="l00137" name="l00137"></a><span class="lineno"> 137</span> (hovered_)--;</div>
<div class="line"><a id="l00138" name="l00138"></a><span class="lineno"> 138</span> <span class="keywordflow">if</span> (event.mouse().button == <a class="code hl_enumvalue" href="structftxui_1_1Mouse.html#a03bfec859eac87be20f8952c1eb89de0afd8a27c9d7eac3486f6fbd2d608da0db">Mouse::WheelDown</a>)</div>
<div class="line"><a id="l00139" name="l00139"></a><span class="lineno"> 139</span> (hovered_)++;</div>
<div class="line"><a id="l00140" name="l00140"></a><span class="lineno"> 140</span> </div>
<div class="line"><a id="l00141" name="l00141"></a><span class="lineno"> 141</span> hovered_ = std::max(0, std::min(<span class="keywordtype">int</span>(entries_.size()) - 1, hovered_));</div>
<div class="line"><a id="l00142" name="l00142"></a><span class="lineno"> 142</span> </div>
<div class="line"><a id="l00143" name="l00143"></a><span class="lineno"> 143</span> <span class="keywordflow">if</span> (hovered_ != old_hovered)</div>
<div class="line"><a id="l00144" name="l00144"></a><span class="lineno"> 144</span> option_-&gt;on_change();</div>
<div class="line"><a id="l00145" name="l00145"></a><span class="lineno"> 145</span> </div>
<div class="line"><a id="l00146" name="l00146"></a><span class="lineno"> 146</span> <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a id="l00147" name="l00147"></a><span class="lineno"> 147</span> }</div>
<div class="line"><a id="l00148" name="l00148"></a><span class="lineno"> 148</span> </div>
<div class="line"><a id="l00149" name="l00149"></a><span class="lineno"> 149</span> <span class="keywordtype">bool</span> Focusable() const final { <span class="keywordflow">return</span> entries_.size(); }</div>
<div class="line"><a id="l00150" name="l00150"></a><span class="lineno"> 150</span> <span class="keywordtype">int</span>&amp; focused_entry() { <span class="keywordflow">return</span> option_-&gt;focused_entry(); }</div>
<div class="line"><a id="l00151" name="l00151"></a><span class="lineno"> 151</span> </div>
<div class="line"><a id="l00152" name="l00152"></a><span class="lineno"> 152</span> ConstStringListRef entries_;</div>
<div class="line"><a id="l00153" name="l00153"></a><span class="lineno"> 153</span> <span class="keywordtype">int</span>* selected_;</div>
<div class="line"><a id="l00154" name="l00154"></a><span class="lineno"> 154</span> <span class="keywordtype">int</span> hovered_;</div>
<div class="line"><a id="l00155" name="l00155"></a><span class="lineno"> 155</span> std::vector&lt;Box&gt; boxes_;</div>
<div class="line"><a id="l00156" name="l00156"></a><span class="lineno"> 156</span> Box box_;</div>
<div class="line"><a id="l00157" name="l00157"></a><span class="lineno"> 157</span> Ref&lt;RadioboxOption&gt; option_;</div>
<div class="line"><a id="l00158" name="l00158"></a><span class="lineno"> 158</span>};</div>
<div class="line"><a id="l00159" name="l00159"></a><span class="lineno"> 159</span> </div>
<div class="line"><a id="l00160" name="l00160"></a><span class="lineno"> 160</span>} <span class="comment">// namespace</span></div>
<div class="line"><a id="l00161" name="l00161"></a><span class="lineno"> 161</span><span class="comment"></span> </div>
<div class="line"><a id="l00162" name="l00162"></a><span class="lineno"> 162</span><span class="comment">/// @brief A list of element, where only one can be selected.</span></div>
<div class="line"><a id="l00163" name="l00163"></a><span class="lineno"> 163</span><span class="comment">/// @param entries The list of entries in the list.</span></div>
<div class="line"><a id="l00164" name="l00164"></a><span class="lineno"> 164</span><span class="comment">/// @param selected The index of the currently selected element.</span></div>
<div class="line"><a id="l00165" name="l00165"></a><span class="lineno"> 165</span><span class="comment">/// @param option Additional optional parameters.</span></div>
<div class="line"><a id="l00166" name="l00166"></a><span class="lineno"> 166</span><span class="comment">/// @ingroup component</span></div>
<div class="line"><a id="l00167" name="l00167"></a><span class="lineno"> 167</span><span class="comment">/// @see RadioboxBase</span></div>
<div class="line"><a id="l00168" name="l00168"></a><span class="lineno"> 168</span><span class="comment">///</span></div>
<div class="line"><a id="l00169" name="l00169"></a><span class="lineno"> 169</span><span class="comment">/// ### Example</span></div>
<div class="line"><a id="l00170" name="l00170"></a><span class="lineno"> 170</span><span class="comment">///</span></div>
<div class="line"><a id="l00171" name="l00171"></a><span class="lineno"> 171</span><span class="comment">/// ```cpp</span></div>
<div class="line"><a id="l00172" name="l00172"></a><span class="lineno"> 172</span><span class="comment">/// auto screen = ScreenInteractive::TerminalOutput();</span></div>
<div class="line"><a id="l00173" name="l00173"></a><span class="lineno"> 173</span><span class="comment">/// std::vector&lt;std::string&gt; entries = {</span></div>
<div class="line"><a id="l00174" name="l00174"></a><span class="lineno"> 174</span><span class="comment">/// &quot;entry 1&quot;,</span></div>
<div class="line"><a id="l00175" name="l00175"></a><span class="lineno"> 175</span><span class="comment">/// &quot;entry 2&quot;,</span></div>
<div class="line"><a id="l00176" name="l00176"></a><span class="lineno"> 176</span><span class="comment">/// &quot;entry 3&quot;,</span></div>
<div class="line"><a id="l00177" name="l00177"></a><span class="lineno"> 177</span><span class="comment">/// };</span></div>
<div class="line"><a id="l00178" name="l00178"></a><span class="lineno"> 178</span><span class="comment">/// int selected = 0;</span></div>
<div class="line"><a id="l00179" name="l00179"></a><span class="lineno"> 179</span><span class="comment">/// auto menu = Radiobox(&amp;entries, &amp;selected);</span></div>
<div class="line"><a id="l00180" name="l00180"></a><span class="lineno"> 180</span><span class="comment">/// screen.Loop(menu);</span></div>
<div class="line"><a id="l00181" name="l00181"></a><span class="lineno"> 181</span><span class="comment">/// ```</span></div>
<div class="line"><a id="l00182" name="l00182"></a><span class="lineno"> 182</span><span class="comment">///</span></div>
<div class="line"><a id="l00183" name="l00183"></a><span class="lineno"> 183</span><span class="comment">/// ### Output</span></div>
<div class="line"><a id="l00184" name="l00184"></a><span class="lineno"> 184</span><span class="comment">///</span></div>
<div class="line"><a id="l00185" name="l00185"></a><span class="lineno"> 185</span><span class="comment">/// ```bash</span></div>
<div class="line"><a id="l00186" name="l00186"></a><span class="lineno"> 186</span><span class="comment">/// ◉ entry 1</span></div>
<div class="line"><a id="l00187" name="l00187"></a><span class="lineno"> 187</span><span class="comment">/// ○ entry 2</span></div>
<div class="line"><a id="l00188" name="l00188"></a><span class="lineno"> 188</span><span class="comment">/// ○ entry 3</span></div>
<div class="line"><a id="l00189" name="l00189"></a><span class="lineno"> 189</span><span class="comment">/// ```</span></div>
<div class="foldopen" id="foldopen00190" data-start="{" data-end="}">
<div class="line"><a id="l00190" name="l00190"></a><span class="lineno"><a class="line" href="namespaceftxui.html#a0d757f667caaff5287cb8702f52186ee"> 190</a></span><span class="comment"></span><a class="code hl_typedef" href="namespaceftxui.html#af1479ede01dbf087342534ab4ada11d3">Component</a> <a class="code hl_function" href="namespaceftxui.html#a0d757f667caaff5287cb8702f52186ee">Radiobox</a>(<a class="code hl_class" href="classftxui_1_1ConstStringListRef.html">ConstStringListRef</a> entries,</div>
<div class="line"><a id="l00191" name="l00191"></a><span class="lineno"> 191</span> <span class="keywordtype">int</span>* selected,</div>
<div class="line"><a id="l00192" name="l00192"></a><span class="lineno"> 192</span> <a class="code hl_class" href="classftxui_1_1Ref.html">Ref&lt;RadioboxOption&gt;</a> option) {</div>
<div class="line"><a id="l00193" name="l00193"></a><span class="lineno"> 193</span> <span class="keywordflow">return</span> <a class="code hl_function" href="namespaceftxui.html#a2b8973dc71334f1d98e2e6f55de8b5ae">Make&lt;RadioboxBase&gt;</a>(entries, selected, std::move(option));</div>
<div class="line"><a id="l00194" name="l00194"></a><span class="lineno"> 194</span>}</div>
</div>
<div class="line"><a id="l00195" name="l00195"></a><span class="lineno"> 195</span> </div>
<div class="line"><a id="l00196" name="l00196"></a><span class="lineno"> 196</span>} <span class="comment">// namespace ftxui</span></div>
<div class="line"><a id="l00197" name="l00197"></a><span class="lineno"> 197</span> </div>
<div class="line"><a id="l00198" name="l00198"></a><span class="lineno"> 198</span><span class="comment">// Copyright 2020 Arthur Sonzogni. All rights reserved.</span></div>
<div class="line"><a id="l00199" name="l00199"></a><span class="lineno"> 199</span><span class="comment">// Use of this source code is governed by the MIT license that can be found in</span></div>
<div class="line"><a id="l00200" name="l00200"></a><span class="lineno"> 200</span><span class="comment">// the LICENSE file.</span></div>
<div class="ttc" id="abox_8hpp_html"><div class="ttname"><a href="box_8hpp.html">box.hpp</a></div></div>
<div class="ttc" id="acaptured__mouse_8hpp_html"><div class="ttname"><a href="captured__mouse_8hpp.html">captured_mouse.hpp</a></div></div>
<div class="ttc" id="aclassftxui_1_1ConstStringListRef_html"><div class="ttname"><a href="classftxui_1_1ConstStringListRef.html">ftxui::ConstStringListRef</a></div><div class="ttdoc">An adapter. Reference a list of strings.</div><div class="ttdef"><b>Definition</b> <a href="ref_8hpp_source.html#l00094">ref.hpp:94</a></div></div>
<div class="ttc" id="aclassftxui_1_1Ref_html"><div class="ttname"><a href="classftxui_1_1Ref.html">ftxui::Ref</a></div><div class="ttdoc">An adapter. Own or reference an mutable object.</div><div class="ttdef"><b>Definition</b> <a href="ref_8hpp_source.html#l00027">ref.hpp:27</a></div></div>
<div class="ttc" id="acomponent_8hpp_html"><div class="ttname"><a href="component_8hpp.html">component.hpp</a></div></div>
<div class="ttc" id="acomponent__base_8hpp_html"><div class="ttname"><a href="component__base_8hpp.html">component_base.hpp</a></div></div>
<div class="ttc" id="acomponent__options_8hpp_html"><div class="ttname"><a href="component__options_8hpp.html">component_options.hpp</a></div></div>
<div class="ttc" id="aelements_8hpp_html"><div class="ttname"><a href="elements_8hpp.html">elements.hpp</a></div></div>
<div class="ttc" id="aevent_8hpp_html"><div class="ttname"><a href="event_8hpp.html">event.hpp</a></div></div>
<div class="ttc" id="amouse_8hpp_html"><div class="ttname"><a href="mouse_8hpp.html">mouse.hpp</a></div></div>
<div class="ttc" id="anamespaceftxui_html"><div class="ttname"><a href="namespaceftxui.html">ftxui</a></div><div class="ttdef"><b>Definition</b> <a href="captured__mouse_8hpp_source.html#l00006">captured_mouse.hpp:6</a></div></div>
<div class="ttc" id="anamespaceftxui_html_a0d757f667caaff5287cb8702f52186ee"><div class="ttname"><a href="namespaceftxui.html#a0d757f667caaff5287cb8702f52186ee">ftxui::Radiobox</a></div><div class="ttdeci">Component Radiobox(ConstStringListRef entries, int *selected_, Ref&lt; RadioboxOption &gt; option={})</div><div class="ttdoc">A list of element, where only one can be selected.</div><div class="ttdef"><b>Definition</b> <a href="#l00190">radiobox.cpp:190</a></div></div>
<div class="ttc" id="anamespaceftxui_html_a1bfd3885ac8b40dc82a1103725003c07"><div class="ttname"><a href="namespaceftxui.html#a1bfd3885ac8b40dc82a1103725003c07">ftxui::nothing</a></div><div class="ttdeci">Element nothing(Element element)</div><div class="ttdoc">A decoration doing absolutely nothing.</div><div class="ttdef"><b>Definition</b> <a href="util_8cpp_source.html#l00025">util.cpp:25</a></div></div>
<div class="ttc" id="anamespaceftxui_html_a2b8973dc71334f1d98e2e6f55de8b5ae"><div class="ttname"><a href="namespaceftxui.html#a2b8973dc71334f1d98e2e6f55de8b5ae">ftxui::Make</a></div><div class="ttdeci">std::shared_ptr&lt; T &gt; Make(Args &amp;&amp;... args)</div><div class="ttdef"><b>Definition</b> <a href="component_8hpp_source.html#l00025">component.hpp:25</a></div></div>
<div class="ttc" id="anamespaceftxui_html_a2bc31f2d685189e5c61d2293a1f51b4f"><div class="ttname"><a href="namespaceftxui.html#a2bc31f2d685189e5c61d2293a1f51b4f">ftxui::Element</a></div><div class="ttdeci">std::shared_ptr&lt; Node &gt; Element</div><div class="ttdef"><b>Definition</b> <a href="elements_8hpp_source.html#l00015">elements.hpp:15</a></div></div>
<div class="ttc" id="anamespaceftxui_html_a52ee73ca2fb34afb6e6f25ac7df04b0e"><div class="ttname"><a href="namespaceftxui.html#a52ee73ca2fb34afb6e6f25ac7df04b0e">ftxui::focus</a></div><div class="ttdeci">Element focus(Element)</div><div class="ttdef"><b>Definition</b> <a href="frame_8cpp_source.html#l00079">frame.cpp:79</a></div></div>
<div class="ttc" id="anamespaceftxui_html_a552ba6d33b3c9bec586b99fba4c243ac"><div class="ttname"><a href="namespaceftxui.html#a552ba6d33b3c9bec586b99fba4c243ac">ftxui::hbox</a></div><div class="ttdeci">Element hbox(Elements)</div><div class="ttdoc">A container displaying elements horizontally one by one.</div><div class="ttdef"><b>Definition</b> <a href="hbox_8cpp_source.html#l00076">hbox.cpp:76</a></div></div>
<div class="ttc" id="anamespaceftxui_html_a5d4aa06ca6cc6a72e981bd5386f93f0a"><div class="ttname"><a href="namespaceftxui.html#a5d4aa06ca6cc6a72e981bd5386f93f0a">ftxui::Elements</a></div><div class="ttdeci">std::vector&lt; Element &gt; Elements</div><div class="ttdef"><b>Definition</b> <a href="elements_8hpp_source.html#l00016">elements.hpp:16</a></div></div>
<div class="ttc" id="anamespaceftxui_html_a75baaa2734ed76a9f478beaafa87ae57"><div class="ttname"><a href="namespaceftxui.html#a75baaa2734ed76a9f478beaafa87ae57">ftxui::text</a></div><div class="ttdeci">Element text(std::wstring text)</div><div class="ttdoc">Display a piece of unicode text.</div><div class="ttdef"><b>Definition</b> <a href="text_8cpp_source.html#l00106">text.cpp:106</a></div></div>
<div class="ttc" id="anamespaceftxui_html_aaff8245861617a3d9e846e99de582a63"><div class="ttname"><a href="namespaceftxui.html#aaff8245861617a3d9e846e99de582a63">ftxui::reflect</a></div><div class="ttdeci">Decorator reflect(Box &amp;box)</div><div class="ttdef"><b>Definition</b> <a href="reflect_8cpp_source.html#l00039">reflect.cpp:39</a></div></div>
<div class="ttc" id="anamespaceftxui_html_ad4b8aa9392f56ba41e2b421e046a7d83"><div class="ttname"><a href="namespaceftxui.html#ad4b8aa9392f56ba41e2b421e046a7d83">ftxui::Render</a></div><div class="ttdeci">void Render(Screen &amp;screen, const Element &amp;node)</div><div class="ttdoc">Display an element on a ftxui::Screen.</div><div class="ttdef"><b>Definition</b> <a href="node_8cpp_source.html#l00034">node.cpp:34</a></div></div>
<div class="ttc" id="anamespaceftxui_html_af0a483ef6e8a00023755c4637a1fcb9d"><div class="ttname"><a href="namespaceftxui.html#af0a483ef6e8a00023755c4637a1fcb9d">ftxui::select</a></div><div class="ttdeci">Element select(Element)</div><div class="ttdef"><b>Definition</b> <a href="frame_8cpp_source.html#l00038">frame.cpp:38</a></div></div>
<div class="ttc" id="anamespaceftxui_html_af1479ede01dbf087342534ab4ada11d3"><div class="ttname"><a href="namespaceftxui.html#af1479ede01dbf087342534ab4ada11d3">ftxui::Component</a></div><div class="ttdeci">std::shared_ptr&lt; ComponentBase &gt; Component</div><div class="ttdef"><b>Definition</b> <a href="component__base_8hpp_source.html#l00017">component_base.hpp:17</a></div></div>
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<div class="ttc" id="astructftxui_1_1Event_html_a00f063998a734c338531f38c5e3d6428"><div class="ttname"><a href="structftxui_1_1Event.html#a00f063998a734c338531f38c5e3d6428">ftxui::Event::TabReverse</a></div><div class="ttdeci">static const Event TabReverse</div><div class="ttdef"><b>Definition</b> <a href="event_8hpp_source.html#l00046">event.hpp:46</a></div></div>
<div class="ttc" id="astructftxui_1_1Event_html_a916bd0ae3c86941b660d9a07980bb0c9"><div class="ttname"><a href="structftxui_1_1Event.html#a916bd0ae3c86941b660d9a07980bb0c9">ftxui::Event::ArrowUp</a></div><div class="ttdeci">static const Event ArrowUp</div><div class="ttdef"><b>Definition</b> <a href="event_8hpp_source.html#l00037">event.hpp:37</a></div></div>
<div class="ttc" id="astructftxui_1_1Event_html_a94bd9090f8bf9eea776c867113afb86c"><div class="ttname"><a href="structftxui_1_1Event.html#a94bd9090f8bf9eea776c867113afb86c">ftxui::Event::Tab</a></div><div class="ttdeci">static const Event Tab</div><div class="ttdef"><b>Definition</b> <a href="event_8hpp_source.html#l00045">event.hpp:45</a></div></div>
<div class="ttc" id="astructftxui_1_1Event_html_a9d2a831cf68bf2185a3c56c2e09b2f23"><div class="ttname"><a href="structftxui_1_1Event.html#a9d2a831cf68bf2185a3c56c2e09b2f23">ftxui::Event::ArrowDown</a></div><div class="ttdeci">static const Event ArrowDown</div><div class="ttdef"><b>Definition</b> <a href="event_8hpp_source.html#l00038">event.hpp:38</a></div></div>
<div class="ttc" id="astructftxui_1_1Event_html_ad3ab0b5bcc923c4b994080d45b97e36b"><div class="ttname"><a href="structftxui_1_1Event.html#ad3ab0b5bcc923c4b994080d45b97e36b">ftxui::Event::Return</a></div><div class="ttdeci">static const Event Return</div><div class="ttdef"><b>Definition</b> <a href="event_8hpp_source.html#l00043">event.hpp:43</a></div></div>
<div class="ttc" id="astructftxui_1_1Mouse_html_a03bfec859eac87be20f8952c1eb89de0a9d4d8b0b72fc2659da772d761a3c5ecb"><div class="ttname"><a href="structftxui_1_1Mouse.html#a03bfec859eac87be20f8952c1eb89de0a9d4d8b0b72fc2659da772d761a3c5ecb">ftxui::Mouse::Left</a></div><div class="ttdeci">@ Left</div><div class="ttdef"><b>Definition</b> <a href="mouse_8hpp_source.html#l00010">mouse.hpp:10</a></div></div>
<div class="ttc" id="astructftxui_1_1Mouse_html_a03bfec859eac87be20f8952c1eb89de0ab51f2e2fc1697565b732263f86a976d6"><div class="ttname"><a href="structftxui_1_1Mouse.html#a03bfec859eac87be20f8952c1eb89de0ab51f2e2fc1697565b732263f86a976d6">ftxui::Mouse::WheelUp</a></div><div class="ttdeci">@ WheelUp</div><div class="ttdef"><b>Definition</b> <a href="mouse_8hpp_source.html#l00014">mouse.hpp:14</a></div></div>
<div class="ttc" id="astructftxui_1_1Mouse_html_a03bfec859eac87be20f8952c1eb89de0afd8a27c9d7eac3486f6fbd2d608da0db"><div class="ttname"><a href="structftxui_1_1Mouse.html#a03bfec859eac87be20f8952c1eb89de0afd8a27c9d7eac3486f6fbd2d608da0db">ftxui::Mouse::WheelDown</a></div><div class="ttdeci">@ WheelDown</div><div class="ttdef"><b>Definition</b> <a href="mouse_8hpp_source.html#l00015">mouse.hpp:15</a></div></div>
<div class="ttc" id="astructftxui_1_1Mouse_html_a099c889d2b948b264c7a665b66e3a9b6ad9417ac74f0134b9577d1d85cf422c25"><div class="ttname"><a href="structftxui_1_1Mouse.html#a099c889d2b948b264c7a665b66e3a9b6ad9417ac74f0134b9577d1d85cf422c25">ftxui::Mouse::Released</a></div><div class="ttdeci">@ Released</div><div class="ttdef"><b>Definition</b> <a href="mouse_8hpp_source.html#l00019">mouse.hpp:19</a></div></div>
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