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<div id="projectbrief">C++ functional terminal UI.</div>
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<div class="headertitle"><div class="title">examples/component/slider_direction.cpp</div></div>
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<h1><a class="anchor" id="autotoc_md204"></a>
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slider_rgb</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 allocator, shared_ptr, __shared_ptr_access</span></div>
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<div class="line"><span class="preprocessor">#include <string></span> <span class="comment">// for char_traits, operator+, to_string</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 Slider, Renderer, 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 separator, operator|, Element, size, text, vbox, xflex, bgcolor, hbox, GREATER_THAN, WIDTH, border, HEIGHT, LESS_THAN</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</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"><a class="code hl_typedef" href="namespaceftxui.html#a2bc31f2d685189e5c61d2293a1f51b4f">Element</a> <a id="a0" name="a0"></a><a class="code hl_function" href="slider__rgb_8cpp.html#ac5038fb3740e7d9137dfb4969a9a8035">ColorTile</a>(<span class="keywordtype">int</span> red, <span class="keywordtype">int</span> green, <span class="keywordtype">int</span> blue) {</div>
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<div class="line"> <span class="keywordflow">return</span> text(<span class="stringliteral">""</span>) | size(WIDTH, GREATER_THAN, 14) |</div>
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<div class="line"> size(HEIGHT, GREATER_THAN, 7) | bgcolor(Color::RGB(red, green, blue));</div>
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<div class="line">}</div>
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<div class="line"> </div>
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<div class="line"><a class="code hl_typedef" href="namespaceftxui.html#a2bc31f2d685189e5c61d2293a1f51b4f">Element</a> <a id="a1" name="a1"></a><a class="code hl_function" href="slider__rgb_8cpp.html#acfbf512737b012658b0c3b6997da144e">ColorString</a>(<span class="keywordtype">int</span> red, <span class="keywordtype">int</span> green, <span class="keywordtype">int</span> blue) {</div>
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<div class="line"> <span class="keywordflow">return</span> text(<span class="stringliteral">"RGB = ("</span> + <span class="comment">//</span></div>
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<div class="line"> std::to_string(red) + <span class="stringliteral">","</span> + <span class="comment">//</span></div>
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<div class="line"> std::to_string(green) + <span class="stringliteral">","</span> + <span class="comment">//</span></div>
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<div class="line"> std::to_string(blue) + <span class="stringliteral">")"</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"> </div>
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<div class="line"><span class="keywordtype">int</span> <a id="a2" name="a2"></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="keywordtype">int</span> red = 128;</div>
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<div class="line"> <span class="keywordtype">int</span> green = 25;</div>
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<div class="line"> <span class="keywordtype">int</span> blue = 100;</div>
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<div class="line"> <span class="keyword">auto</span> slider_red = <a class="code hl_function" href="namespaceftxui.html#aa3558d992a72679e5e9c9c7b67abd727">Slider</a>(<span class="stringliteral">"Red :"</span>, &red, 0, 255, 1);</div>
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<div class="line"> <span class="keyword">auto</span> slider_green = <a class="code hl_function" href="namespaceftxui.html#aa3558d992a72679e5e9c9c7b67abd727">Slider</a>(<span class="stringliteral">"Green:"</span>, &green, 0, 255, 1);</div>
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<div class="line"> <span class="keyword">auto</span> slider_blue = <a class="code hl_function" href="namespaceftxui.html#aa3558d992a72679e5e9c9c7b67abd727">Slider</a>(<span class="stringliteral">"Blue :"</span>, &blue, 0, 255, 1);</div>
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<div class="line"> </div>
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<div class="line"> <span class="keyword">auto</span> container = Container::Vertical({</div>
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<div class="line"> slider_red,</div>
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<div class="line"> slider_green,</div>
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<div class="line"> slider_blue,</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> renderer = <a class="code hl_function" href="namespaceftxui.html#a533e883e2aeea28de2b60564fcaf0361">Renderer</a>(container, [&] {</div>
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<div class="line"> <span class="keywordflow">return</span> <a class="code hl_function" href="namespaceftxui.html#a552ba6d33b3c9bec586b99fba4c243ac">hbox</a>({</div>
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<div class="line"> <a class="code hl_function" href="slider__rgb_8cpp.html#ac5038fb3740e7d9137dfb4969a9a8035">ColorTile</a>(red, green, blue),</div>
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<div class="line"> <a class="code hl_function" href="namespaceftxui.html#ac1ef1cf6bf7cd0759ffa195071edb2a0">separator</a>(),</div>
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<div class="line"> <a class="code hl_function" href="namespaceftxui.html#afd28058f0ccbbdf34691a85a7cc9b2e3">vbox</a>({</div>
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<div class="line"> slider_red->Render(),</div>
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<div class="line"> <a class="code hl_function" href="namespaceftxui.html#ac1ef1cf6bf7cd0759ffa195071edb2a0">separator</a>(),</div>
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<div class="line"> slider_green->Render(),</div>
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<div class="line"> <a class="code hl_function" href="namespaceftxui.html#ac1ef1cf6bf7cd0759ffa195071edb2a0">separator</a>(),</div>
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<div class="line"> slider_blue->Render(),</div>
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<div class="line"> <a class="code hl_function" href="namespaceftxui.html#ac1ef1cf6bf7cd0759ffa195071edb2a0">separator</a>(),</div>
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<div class="line"> <a class="code hl_function" href="slider__rgb_8cpp.html#acfbf512737b012658b0c3b6997da144e">ColorString</a>(red, green, blue),</div>
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<div class="line"> }) | xflex,</div>
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<div class="line"> }) |</div>
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<div class="line"> border | <a class="code hl_function" href="namespaceftxui.html#a201220986fbdc539e42efe067985cbdb">size</a>(WIDTH, LESS_THAN, 80);</div>
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<div class="line"> });</div>
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<div class="line"> <span class="keyword">auto</span> screen = ScreenInteractive::TerminalOutput();</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="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="anamespaceftxui_html_a201220986fbdc539e42efe067985cbdb"><div class="ttname"><a href="namespaceftxui.html#a201220986fbdc539e42efe067985cbdb">ftxui::size</a></div><div class="ttdeci">Decorator size(WidthOrHeight, Constraint, int value)</div><div class="ttdoc">Apply a constraint on the size of an element.</div><div class="ttdef"><b>Definition</b> <a href="src_2ftxui_2dom_2size_8cpp_source.html#l00089">src/ftxui/dom/size.cpp:89</a></div></div>
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<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< Node > Element</div><div class="ttdef"><b>Definition</b> <a href="elements_8hpp_source.html#l00022">elements.hpp:22</a></div></div>
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<div class="ttc" id="anamespaceftxui_html_a533e883e2aeea28de2b60564fcaf0361"><div class="ttname"><a href="namespaceftxui.html#a533e883e2aeea28de2b60564fcaf0361">ftxui::Renderer</a></div><div class="ttdeci">Component Renderer(Component child, std::function< Element()>)</div><div class="ttdoc">Return a new Component, similar to |child|, but using |render| as the Component::Render() event.</div><div class="ttdef"><b>Definition</b> <a href="src_2ftxui_2component_2renderer_8cpp_source.html#l00061">src/ftxui/component/renderer.cpp:61</a></div></div>
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<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#l00094">hbox.cpp:94</a></div></div>
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<div class="ttc" id="anamespaceftxui_html_aa3558d992a72679e5e9c9c7b67abd727"><div class="ttname"><a href="namespaceftxui.html#aa3558d992a72679e5e9c9c7b67abd727">ftxui::Slider</a></div><div class="ttdeci">Component Slider(SliderOption< T > options)</div><div class="ttdoc">A slider in any direction.</div><div class="ttdef"><b>Definition</b> <a href="src_2ftxui_2component_2slider_8cpp_source.html#l00346">src/ftxui/component/slider.cpp:346</a></div></div>
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<div class="ttc" id="anamespaceftxui_html_ac1ef1cf6bf7cd0759ffa195071edb2a0"><div class="ttname"><a href="namespaceftxui.html#ac1ef1cf6bf7cd0759ffa195071edb2a0">ftxui::separator</a></div><div class="ttdeci">Element separator()</div><div class="ttdoc">Draw a vertical or horizontal separation in between two other elements.</div><div class="ttdef"><b>Definition</b> <a href="src_2ftxui_2dom_2separator_8cpp_source.html#l00134">src/ftxui/dom/separator.cpp:134</a></div></div>
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<div class="ttc" id="anamespaceftxui_html_afd28058f0ccbbdf34691a85a7cc9b2e3"><div class="ttname"><a href="namespaceftxui.html#afd28058f0ccbbdf34691a85a7cc9b2e3">ftxui::vbox</a></div><div class="ttdeci">Element vbox(Elements)</div><div class="ttdoc">A container displaying elements vertically one by one.</div><div class="ttdef"><b>Definition</b> <a href="vbox_8cpp_source.html#l00096">vbox.cpp:96</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 class="ttc" id="aslider__rgb_8cpp_html_ac5038fb3740e7d9137dfb4969a9a8035"><div class="ttname"><a href="slider__rgb_8cpp.html#ac5038fb3740e7d9137dfb4969a9a8035">ColorTile</a></div><div class="ttdeci">Element ColorTile(int red, int green, int blue)</div><div class="ttdef"><b>Definition</b> <a href="slider__rgb_8cpp_source.html#l00016">slider_rgb.cpp:16</a></div></div>
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<div class="ttc" id="aslider__rgb_8cpp_html_acfbf512737b012658b0c3b6997da144e"><div class="ttname"><a href="slider__rgb_8cpp.html#acfbf512737b012658b0c3b6997da144e">ColorString</a></div><div class="ttdeci">Element ColorString(int red, int green, int blue)</div><div class="ttdef"><b>Definition</b> <a href="slider__rgb_8cpp_source.html#l00021">slider_rgb.cpp:21</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 <array></span> <span class="comment">// for array</span></div>
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<div class="line"><span class="preprocessor">#include <cmath></span> <span class="comment">// for sin</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="component__options_8hpp.html">ftxui/component/component_options.hpp</a>></span> <span class="comment">// for SliderOption</span></div>
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<div class="line"><span class="preprocessor">#include <<a class="code" href="direction_8hpp.html">ftxui/dom/direction.hpp</a>></span> <span class="comment">// for Direction, Direction::Up</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 size, GREATER_THAN, HEIGHT</span></div>
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||
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<div class="line"><span class="preprocessor">#include <<a class="code" href="ref_8hpp.html">ftxui/util/ref.hpp</a>></span> <span class="comment">// for ConstRef, Ref</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"> </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 Horizontal, Slider, operator|=</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"> </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"> <span class="keyword">auto</span> screen = ScreenInteractive::TerminalOutput();</div>
|
||
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<div class="line"> std::array<int, 30> values;</div>
|
||
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<div class="line"> <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i < values.size(); ++i) {</div>
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<div class="line"> values[i] = 50 + 20 * std::sin(i * 0.3);</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> layout_horizontal = Container::Horizontal({});</div>
|
||
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<div class="line"> <span class="keywordflow">for</span> (<span class="keyword">auto</span>& value : values) {</div>
|
||
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<div class="line"> <span class="comment">// In C++17:</span></div>
|
||
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<div class="line"> <a id="_a3" name="_a3"></a><a class="code hl_struct" href="structftxui_1_1SliderOption.html">SliderOption<int></a> option;</div>
|
||
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<div class="line"> option.<a id="a4" name="a4"></a><a class="code hl_variable" href="structftxui_1_1SliderOption.html#ab256d6c86a100045ed2329da289dce3a">value</a> = &value;</div>
|
||
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<div class="line"> option.<a id="a5" name="a5"></a><a class="code hl_variable" href="structftxui_1_1SliderOption.html#abd146f0de5789f02aee07c54e819099b">max</a> = 100;</div>
|
||
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<div class="line"> option.<a id="a6" name="a6"></a><a class="code hl_variable" href="structftxui_1_1SliderOption.html#a752366b00bdf7bba57a18e239e86e2e1">increment</a> = 5;</div>
|
||
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<div class="line"> option.<a id="a7" name="a7"></a><a class="code hl_variable" href="structftxui_1_1SliderOption.html#a53421c695d00016ab925777d423b4eb6">direction</a> = Direction::Up;</div>
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||
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<div class="line"> layout_horizontal->Add(Slider<int>(option));</div>
|
||
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<div class="line"> </div>
|
||
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<div class="line"> <span class="comment">/* In C++20:</span></div>
|
||
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<div class="line"><span class="comment"> layout_horizontal->Add(Slider<int>({</span></div>
|
||
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<div class="line"><span class="comment"> .value = &values[i],</span></div>
|
||
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<div class="line"><span class="comment"> .max = 100,</span></div>
|
||
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<div class="line"><span class="comment"> .increment = 5,</span></div>
|
||
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<div class="line"><span class="comment"> .direction = Direction::Up,</span></div>
|
||
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<div class="line"><span class="comment"> }));</span></div>
|
||
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<div class="line"><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"> layout_horizontal |= size(HEIGHT, GREATER_THAN, 20);</div>
|
||
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<div class="line"> </div>
|
||
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<div class="line"> screen.Loop(layout_horizontal);</div>
|
||
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<div class="line">}</div>
|
||
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<div class="ttc" id="acomponent__options_8hpp_html"><div class="ttname"><a href="component__options_8hpp.html">component_options.hpp</a></div></div>
|
||
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<div class="ttc" id="adirection_8hpp_html"><div class="ttname"><a href="direction_8hpp.html">direction.hpp</a></div></div>
|
||
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<div class="ttc" id="aref_8hpp_html"><div class="ttname"><a href="ref_8hpp.html">ref.hpp</a></div></div>
|
||
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<div class="ttc" id="astructftxui_1_1SliderOption_html"><div class="ttname"><a href="structftxui_1_1SliderOption.html">ftxui::SliderOption</a></div><div class="ttdef"><b>Definition</b> <a href="component__options_8hpp_source.html#l00222">component_options.hpp:222</a></div></div>
|
||
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<div class="ttc" id="astructftxui_1_1SliderOption_html_a53421c695d00016ab925777d423b4eb6"><div class="ttname"><a href="structftxui_1_1SliderOption.html#a53421c695d00016ab925777d423b4eb6">ftxui::SliderOption::direction</a></div><div class="ttdeci">Direction direction</div><div class="ttdef"><b>Definition</b> <a href="component__options_8hpp_source.html#l00227">component_options.hpp:227</a></div></div>
|
||
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<div class="ttc" id="astructftxui_1_1SliderOption_html_a752366b00bdf7bba57a18e239e86e2e1"><div class="ttname"><a href="structftxui_1_1SliderOption.html#a752366b00bdf7bba57a18e239e86e2e1">ftxui::SliderOption::increment</a></div><div class="ttdeci">ConstRef< T > increment</div><div class="ttdef"><b>Definition</b> <a href="component__options_8hpp_source.html#l00226">component_options.hpp:226</a></div></div>
|
||
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<div class="ttc" id="astructftxui_1_1SliderOption_html_ab256d6c86a100045ed2329da289dce3a"><div class="ttname"><a href="structftxui_1_1SliderOption.html#ab256d6c86a100045ed2329da289dce3a">ftxui::SliderOption::value</a></div><div class="ttdeci">Ref< T > value</div><div class="ttdef"><b>Definition</b> <a href="component__options_8hpp_source.html#l00223">component_options.hpp:223</a></div></div>
|
||
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<div class="ttc" id="astructftxui_1_1SliderOption_html_abd146f0de5789f02aee07c54e819099b"><div class="ttname"><a href="structftxui_1_1SliderOption.html#abd146f0de5789f02aee07c54e819099b">ftxui::SliderOption::max</a></div><div class="ttdeci">ConstRef< T > max</div><div class="ttdef"><b>Definition</b> <a href="component__options_8hpp_source.html#l00225">component_options.hpp:225</a></div></div>
|
||
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</div><!-- fragment --> </div><!-- contents -->
|
||
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</div><!-- doc-content -->
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