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<div id="projectname">FTXUI<span id="projectnumber"> 6.1.9</span>
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<div id="projectbrief">C++ functional terminal UI.</div>
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<div class="headertitle"><div class="title">examples/component/radiobox_in_frame.cpp</div></div>
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<h1><a class="anchor" id="autotoc_md198"></a>
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renderer</h1>
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<div class="fragment"><div class="line"><span class="comment">// Copyright 2020 Arthur Sonzogni. All rights reserved.</span></div>
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<div class="line"><span class="comment">// Use of this source code is governed by the MIT license that can be found in</span></div>
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<div class="line"><span class="comment">// the LICENSE file.</span></div>
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<div class="line"><span class="preprocessor">#include <memory></span> <span class="comment">// for shared_ptr, allocator, __shared_ptr_access</span></div>
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<div class="line"> </div>
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<div class="line"><span class="preprocessor">#include "<a class="code" href="captured__mouse_8hpp.html">ftxui/component/captured_mouse.hpp</a>"</span> <span class="comment">// for ftxui</span></div>
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<div class="line"><span class="preprocessor">#include "<a class="code" href="component_8hpp.html">ftxui/component/component.hpp</a>"</span> <span class="comment">// for Renderer, Button, Vertical</span></div>
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<div class="line"><span class="preprocessor">#include "<a class="code" href="component__base_8hpp.html">ftxui/component/component_base.hpp</a>"</span> <span class="comment">// for ComponentBase</span></div>
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<div class="line"><span class="preprocessor">#include "<a class="code" href="screen__interactive_8hpp.html">ftxui/component/screen_interactive.hpp</a>"</span> <span class="comment">// for ScreenInteractive</span></div>
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<div class="line"><span class="preprocessor">#include "<a class="code" href="elements_8hpp.html">ftxui/dom/elements.hpp</a>"</span> <span class="comment">// for operator|, Element, text, bold, border, center, color</span></div>
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<div class="line"><span class="preprocessor">#include "<a class="code" href="color_8hpp.html">ftxui/screen/color.hpp</a>"</span> <span class="comment">// for Color, Color::Red</span></div>
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<div class="line"> </div>
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<div class="line"><span class="keywordtype">int</span> <a id="a0" name="a0"></a><a class="code hl_function" href="examples_2component_2button_8cpp.html#ae66f6b31b5ad750f1fe042a706a4e3d4">main</a>() {</div>
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<div class="line"> <span class="keyword">using namespace </span><a class="code hl_namespace" href="namespaceftxui.html">ftxui</a>;</div>
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<div class="line"> <span class="keyword">auto</span> screen = ScreenInteractive::FitComponent();</div>
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<div class="line"> </div>
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<div class="line"> <span class="comment">// A Renderer() is a component using a lambda function as a parameter to</span></div>
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<div class="line"> <span class="comment">// render itself.</span></div>
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<div class="line"> </div>
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<div class="line"> <span class="comment">// 1. Example of focusable renderer:</span></div>
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<div class="line"> <span class="keyword">auto</span> renderer_focusable = Renderer([](<span class="keywordtype">bool</span> focused) {</div>
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<div class="line"> <span class="keywordflow">if</span> (focused)</div>
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<div class="line"> <span class="keywordflow">return</span> text(<span class="stringliteral">"FOCUSABLE RENDERER()"</span>) | center | bold | border;</div>
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<div class="line"> <span class="keywordflow">else</span></div>
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<div class="line"> <span class="keywordflow">return</span> text(<span class="stringliteral">" Focusable renderer() "</span>) | center | border;</div>
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<div class="line"> });</div>
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<div class="line"> </div>
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<div class="line"> <span class="comment">// 2. Examples of a non focusable renderer.</span></div>
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<div class="line"> <span class="keyword">auto</span> renderer_non_focusable = Renderer([&] {</div>
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<div class="line"> <span class="keywordflow">return</span> text(<span class="stringliteral">"~~~~~ Non Focusable renderer() ~~~~~"</span>); <span class="comment">//</span></div>
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<div class="line"> });</div>
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<div class="line"> </div>
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<div class="line"> <span class="comment">// 3. Renderer can wrap other components to redefine their Render() function.</span></div>
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<div class="line"> <span class="keyword">auto</span> button = Button(<span class="stringliteral">"Wrapped quit button"</span>, screen.ExitLoopClosure());</div>
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<div class="line"> <span class="keyword">auto</span> renderer_wrap = Renderer(button, [&] {</div>
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<div class="line"> <span class="keywordflow">if</span> (button->Focused())</div>
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<div class="line"> <span class="keywordflow">return</span> button->Render() | bold | color(Color::Red);</div>
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<div class="line"> <span class="keywordflow">else</span></div>
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<div class="line"> <span class="keywordflow">return</span> button->Render();</div>
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<div class="line"> });</div>
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<div class="line"> </div>
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<div class="line"> <span class="comment">// Let's renderer everyone:</span></div>
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<div class="line"> screen.Loop(Container::Vertical({</div>
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<div class="line"> renderer_focusable,</div>
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<div class="line"> renderer_non_focusable,</div>
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<div class="line"> renderer_wrap,</div>
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<div class="line"> }));</div>
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<div class="line">}</div>
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<div class="ttc" id="acaptured__mouse_8hpp_html"><div class="ttname"><a href="captured__mouse_8hpp.html">captured_mouse.hpp</a></div></div>
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<div class="ttc" id="acolor_8hpp_html"><div class="ttname"><a href="color_8hpp.html">color.hpp</a></div></div>
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<div class="ttc" id="acomponent_8hpp_html"><div class="ttname"><a href="component_8hpp.html">component.hpp</a></div></div>
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<div class="ttc" id="acomponent__base_8hpp_html"><div class="ttname"><a href="component__base_8hpp.html">component_base.hpp</a></div></div>
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<div class="ttc" id="aelements_8hpp_html"><div class="ttname"><a href="elements_8hpp.html">elements.hpp</a></div></div>
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<div class="ttc" id="aexamples_2component_2button_8cpp_html_ae66f6b31b5ad750f1fe042a706a4e3d4"><div class="ttname"><a href="examples_2component_2button_8cpp.html#ae66f6b31b5ad750f1fe042a706a4e3d4">main</a></div><div class="ttdeci">int main()</div><div class="ttdef"><b>Definition</b> <a href="examples_2component_2button_8cpp_source.html#l00004">examples/component/button.cpp:4</a></div></div>
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<div class="ttc" id="anamespaceftxui_html"><div class="ttname"><a href="namespaceftxui.html">ftxui</a></div><div class="ttdef"><b>Definition</b> <a href="animation_8hpp_source.html#l00010">animation.hpp:10</a></div></div>
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<div class="ttc" id="ascreen__interactive_8hpp_html"><div class="ttname"><a href="screen__interactive_8hpp.html">screen_interactive.hpp</a></div></div>
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</div><!-- fragment --><div class="fragment"><div class="line"><span class="comment">// Copyright 2020 Arthur Sonzogni. All rights reserved.</span></div>
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<div class="line"><span class="comment">// Use of this source code is governed by the MIT license that can be found in</span></div>
|
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<div class="line"><span class="comment">// the LICENSE file.</span></div>
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<div class="line"><span class="preprocessor">#include <memory></span> <span class="comment">// for shared_ptr, __shared_ptr_access</span></div>
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<div class="line"><span class="preprocessor">#include <string></span> <span class="comment">// for string, basic_string, operator+, to_string</span></div>
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<div class="line"><span class="preprocessor">#include <vector></span> <span class="comment">// for vector</span></div>
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<div class="line"> </div>
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<div class="line"><span class="preprocessor">#include "<a class="code" href="captured__mouse_8hpp.html">ftxui/component/captured_mouse.hpp</a>"</span> <span class="comment">// for ftxui</span></div>
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<div class="line"><span class="preprocessor">#include "<a class="code" href="component_8hpp.html">ftxui/component/component.hpp</a>"</span> <span class="comment">// for Radiobox, Renderer</span></div>
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<div class="line"><span class="preprocessor">#include "<a class="code" href="component__base_8hpp.html">ftxui/component/component_base.hpp</a>"</span> <span class="comment">// for ComponentBase</span></div>
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<div class="line"><span class="preprocessor">#include "<a class="code" href="screen__interactive_8hpp.html">ftxui/component/screen_interactive.hpp</a>"</span> <span class="comment">// for ScreenInteractive</span></div>
|
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|
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<div class="line"><span class="preprocessor">#include "<a class="code" href="elements_8hpp.html">ftxui/dom/elements.hpp</a>"</span> <span class="comment">// for operator|, Element, size, border, frame, HEIGHT, LESS_THAN</span></div>
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<div class="line"> </div>
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<div class="line"><span class="keyword">using namespace </span><a class="code hl_namespace" href="namespaceftxui.html">ftxui</a>;</div>
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<div class="line"> </div>
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<div class="line"><span class="keywordtype">int</span> <a class="code hl_function" href="examples_2component_2button_8cpp.html#ae66f6b31b5ad750f1fe042a706a4e3d4">main</a>() {</div>
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<div class="line"> std::vector<std::string> entries;</div>
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<div class="line"> <span class="keywordtype">int</span> selected = 0;</div>
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<div class="line"> </div>
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<div class="line"> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < 30; ++i)</div>
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<div class="line"> entries.push_back(<span class="stringliteral">"RadioBox "</span> + std::to_string(i));</div>
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<div class="line"> <span class="keyword">auto</span> radiobox = Radiobox(&entries, &selected);</div>
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<div class="line"> <span class="keyword">auto</span> renderer = Renderer(radiobox, [&] {</div>
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<div class="line"> <span class="keywordflow">return</span> radiobox->Render() | vscroll_indicator | frame |</div>
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<div class="line"> size(HEIGHT, LESS_THAN, 10) | border;</div>
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<div class="line"> });</div>
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<div class="line"> </div>
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<div class="line"> <span class="keyword">auto</span> screen = ScreenInteractive::FitComponent();</div>
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<div class="line"> screen.Loop(renderer);</div>
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<div class="line"> </div>
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<div class="line"> <span class="keywordflow">return</span> 0;</div>
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<div class="line">}</div>
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</div><!-- fragment --> </div><!-- contents -->
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