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<div id="projectbrief">C++ functional terminal UI.</div>
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<div class="headertitle"><div class="title">examples/component/input_style.cpp</div></div>
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<h1><a class="anchor" id="autotoc_md181"></a>
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linear_gradient_gallery</h1>
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<div class="fragment"><div class="line"><span class="comment">// Copyright 2023 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 <<a class="code" href="component__base_8hpp.html">ftxui/component/component_base.hpp</a>></span> <span class="comment">// for ComponentBase, Component</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, flex, bgcolor, text, vbox, center</span></div>
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<div class="line"><span class="preprocessor">#include <<a class="code" href="linear__gradient_8hpp.html">ftxui/dom/linear_gradient.hpp</a>></span> <span class="comment">// for LinearGradient</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::Blue, Color::Red</span></div>
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<div class="line"><span class="preprocessor">#include <memory></span> <span class="comment">// for __shared_ptr_access, shared_ptr</span></div>
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<div class="line"><span class="preprocessor">#include <string></span> <span class="comment">// for allocator, operator+, char_traits, string, 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="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="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::Fullscreen();</div>
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<div class="line"> </div>
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<div class="line"> <span class="keywordtype">int</span> <a id="a1" name="a1"></a><a class="code hl_variable" href="src_2ftxui_2dom_2linear__gradient_8cpp.html#ab8ef1bf8a70cc07c6d55823c390a7e76">angle</a> = 180.f;</div>
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<div class="line"> <span class="keywordtype">float</span> start = 0.f;</div>
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<div class="line"> <span class="keywordtype">float</span> end = 1.f;</div>
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<div class="line"> </div>
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<div class="line"> std::string slider_angle_text;</div>
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<div class="line"> std::string slider_start_text;</div>
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<div class="line"> std::string slider_end_text;</div>
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<div class="line"> </div>
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<div class="line"> <span class="keyword">auto</span> slider_angle = Slider(&slider_angle_text, &<a class="code hl_variable" href="src_2ftxui_2dom_2linear__gradient_8cpp.html#ab8ef1bf8a70cc07c6d55823c390a7e76">angle</a>, 0, 360);</div>
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<div class="line"> <span class="keyword">auto</span> slider_start = Slider(&slider_start_text, &start, 0.f, 1.f, 0.05f);</div>
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<div class="line"> <span class="keyword">auto</span> slider_end = Slider(&slider_end_text, &end, 0.f, 1.f, 0.05f);</div>
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<div class="line"> </div>
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<div class="line"> <span class="keyword">auto</span> layout = Container::Vertical({</div>
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<div class="line"> slider_angle,</div>
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<div class="line"> slider_start,</div>
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<div class="line"> slider_end,</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 = Renderer(layout, [&] {</div>
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<div class="line"> slider_angle_text = <span class="stringliteral">"angle = "</span> + std::to_string(<a class="code hl_variable" href="src_2ftxui_2dom_2linear__gradient_8cpp.html#ab8ef1bf8a70cc07c6d55823c390a7e76">angle</a>) + <span class="stringliteral">"°"</span>;</div>
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<div class="line"> slider_start_text = <span class="stringliteral">"start = "</span> + std::to_string(<span class="keywordtype">int</span>(start * 100)) + <span class="stringliteral">"%"</span>;</div>
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<div class="line"> slider_end_text = <span class="stringliteral">"end = "</span> + std::to_string(<span class="keywordtype">int</span>(end * 100)) + <span class="stringliteral">"%"</span>;</div>
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<div class="line"> </div>
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<div class="line"> <span class="keyword">auto</span> background = text(<span class="stringliteral">"Gradient"</span>) | center |</div>
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<div class="line"> bgcolor(<a id="_a2" name="_a2"></a><a class="code hl_struct" href="structftxui_1_1LinearGradient.html">LinearGradient</a>()</div>
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<div class="line"> .Angle(<a class="code hl_variable" href="src_2ftxui_2dom_2linear__gradient_8cpp.html#ab8ef1bf8a70cc07c6d55823c390a7e76">angle</a>)</div>
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<div class="line"> .Stop(Color::Blue, start)</div>
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<div class="line"> .Stop(Color::Red, end));</div>
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<div class="line"> <span class="keywordflow">return</span> vbox({</div>
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<div class="line"> background | flex,</div>
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<div class="line"> layout->Render(),</div>
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<div class="line"> }) |</div>
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<div class="line"> flex;</div>
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<div class="line"> });</div>
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<div class="line"> </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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||
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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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||
|
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<div class="ttc" id="alinear__gradient_8hpp_html"><div class="ttname"><a href="linear__gradient_8hpp.html">linear_gradient.hpp</a></div></div>
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|
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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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||
|
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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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|
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<div class="ttc" id="asrc_2ftxui_2dom_2linear__gradient_8cpp_html_ab8ef1bf8a70cc07c6d55823c390a7e76"><div class="ttname"><a href="src_2ftxui_2dom_2linear__gradient_8cpp.html#ab8ef1bf8a70cc07c6d55823c390a7e76">angle</a></div><div class="ttdeci">float angle</div><div class="ttdef"><b>Definition</b> <a href="src_2ftxui_2dom_2linear__gradient_8cpp_source.html#l00023">src/ftxui/dom/linear_gradient.cpp:23</a></div></div>
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|
|
<div class="ttc" id="astructftxui_1_1LinearGradient_html"><div class="ttname"><a href="structftxui_1_1LinearGradient.html">ftxui::LinearGradient</a></div><div class="ttdoc">A class representing the settings for linear-gradient color effect.</div><div class="ttdef"><b>Definition</b> <a href="linear__gradient_8hpp_source.html#l00030">linear_gradient.hpp:30</a></div></div>
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|
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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>
|
||
|
|
<div class="line"><span class="comment">// the LICENSE file.</span></div>
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||
|
|
<div class="line"><span class="preprocessor">#include <<a class="code" href="linear__gradient_8hpp.html">ftxui/dom/linear_gradient.hpp</a>></span> <span class="comment">// for LinearGradient</span></div>
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|
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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::White, Color::Red, Color::Blue, Color::Black, Color::GrayDark, ftxui</span></div>
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<div class="line"><span class="preprocessor">#include <functional></span> <span class="comment">// for function</span></div>
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<div class="line"><span class="preprocessor">#include <string></span> <span class="comment">// for allocator, string</span></div>
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<div class="line"><span class="preprocessor">#include <utility></span> <span class="comment">// for move</span></div>
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<div class="line"> </div>
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||
|
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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 Input, Horizontal, Vertical, operator|</span></div>
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|
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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 Component</span></div>
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|
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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 InputState, InputOption</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, bgcolor, operator|, separatorEmpty, color, borderEmpty, separator, text, center, dim, hbox, vbox, border, borderDouble, borderRounded</span></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">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 id="_a3" name="_a3"></a><a class="code hl_struct" href="structftxui_1_1InputOption.html">InputOption</a> style_1 = InputOption::Default();</div>
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<div class="line"> </div>
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<div class="line"> <a class="code hl_struct" href="structftxui_1_1InputOption.html">InputOption</a> style_2 = InputOption::Spacious();</div>
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<div class="line"> </div>
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<div class="line"> <a class="code hl_struct" href="structftxui_1_1InputOption.html">InputOption</a> style_3 = InputOption::Spacious();</div>
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<div class="line"> style_3.<a id="a4" name="a4"></a><a class="code hl_variable" href="structftxui_1_1InputOption.html#a93721d00aaf44f42cc0399024514b628">transform</a> = [](<a id="_a5" name="_a5"></a><a class="code hl_struct" href="structftxui_1_1InputState.html">InputState</a> state) {</div>
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<div class="line"> state.element |= borderEmpty;</div>
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<div class="line"> </div>
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<div class="line"> <span class="keywordflow">if</span> (state.is_placeholder) {</div>
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<div class="line"> state.element |= dim;</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="keywordflow">if</span> (state.focused) {</div>
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<div class="line"> state.element |= borderDouble;</div>
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<div class="line"> state.element |= bgcolor(Color::White);</div>
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<div class="line"> state.element |= color(Color::Black);</div>
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<div class="line"> } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (state.hovered) {</div>
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<div class="line"> state.element |= borderRounded;</div>
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<div class="line"> state.element |= bgcolor(<a class="code hl_struct" href="structftxui_1_1LinearGradient.html">LinearGradient</a>(90, Color::Blue, Color::Red));</div>
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<div class="line"> state.element |= color(Color::White);</div>
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<div class="line"> } <span class="keywordflow">else</span> {</div>
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<div class="line"> state.element |= border;</div>
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<div class="line"> state.element |= bgcolor(<a class="code hl_struct" href="structftxui_1_1LinearGradient.html">LinearGradient</a>(0, Color::Blue, Color::Red));</div>
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<div class="line"> state.element |= color(Color::White);</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="keywordflow">return</span> state.element;</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_struct" href="structftxui_1_1InputOption.html">InputOption</a> style_4 = InputOption::Spacious();</div>
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<div class="line"> style_4.<a class="code hl_variable" href="structftxui_1_1InputOption.html#a93721d00aaf44f42cc0399024514b628">transform</a> = [](<a class="code hl_struct" href="structftxui_1_1InputState.html">InputState</a> state) {</div>
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<div class="line"> state.element = hbox({</div>
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<div class="line"> text(<span class="stringliteral">"Theorem"</span>) | center | borderEmpty | bgcolor(Color::Red),</div>
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<div class="line"> separatorEmpty(),</div>
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<div class="line"> separator() | color(Color::White),</div>
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<div class="line"> separatorEmpty(),</div>
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<div class="line"> std::move(state.element),</div>
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<div class="line"> });</div>
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<div class="line"> </div>
|
||
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<div class="line"> state.element |= borderEmpty;</div>
|
||
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<div class="line"> <span class="keywordflow">if</span> (state.is_placeholder) {</div>
|
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<div class="line"> state.element |= dim;</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="keywordflow">if</span> (state.focused) {</div>
|
||
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<div class="line"> state.element |= bgcolor(Color::Black);</div>
|
||
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<div class="line"> } <span class="keywordflow">else</span> {</div>
|
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<div class="line"> state.element |= bgcolor(Color::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="keywordflow">if</span> (state.hovered) {</div>
|
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<div class="line"> state.element |= bgcolor(Color::GrayDark);</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="keywordflow">return</span> vbox({state.element, separatorEmpty()});</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> generateUiFromStyle = [&](<a class="code hl_struct" href="structftxui_1_1InputOption.html">InputOption</a> style) {</div>
|
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<div class="line"> <span class="keyword">auto</span> first_name = <span class="keyword">new</span> std::string(); <span class="comment">// Leaked</span></div>
|
||
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<div class="line"> <span class="keyword">auto</span> middle_name = <span class="keyword">new</span> std::string(); <span class="comment">// Leaked</span></div>
|
||
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<div class="line"> <span class="keyword">auto</span> last_name = <span class="keyword">new</span> std::string(); <span class="comment">// Leaked</span></div>
|
||
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<div class="line"> <span class="keywordflow">return</span> Container::Vertical({</div>
|
||
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<div class="line"> Input(first_name, <span class="stringliteral">"first name"</span>, style),</div>
|
||
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<div class="line"> Input(middle_name, <span class="stringliteral">"middle name"</span>, style),</div>
|
||
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<div class="line"> Input(last_name, <span class="stringliteral">"last name"</span>, style),</div>
|
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<div class="line"> }) |</div>
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<div class="line"> borderEmpty;</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> ui = Container::Horizontal({</div>
|
||
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<div class="line"> generateUiFromStyle(style_1),</div>
|
||
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<div class="line"> generateUiFromStyle(style_2),</div>
|
||
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<div class="line"> generateUiFromStyle(style_3),</div>
|
||
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<div class="line"> generateUiFromStyle(style_4),</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::TerminalOutput();</div>
|
||
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<div class="line"> screen.Loop(ui);</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="astructftxui_1_1InputOption_html"><div class="ttname"><a href="structftxui_1_1InputOption.html">ftxui::InputOption</a></div><div class="ttdoc">Option for the Input component.</div><div class="ttdef"><b>Definition</b> <a href="component__options_8hpp_source.html#l00161">component_options.hpp:161</a></div></div>
|
||
|
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<div class="ttc" id="astructftxui_1_1InputOption_html_a93721d00aaf44f42cc0399024514b628"><div class="ttname"><a href="structftxui_1_1InputOption.html#a93721d00aaf44f42cc0399024514b628">ftxui::InputOption::transform</a></div><div class="ttdeci">std::function< Element(InputState)> transform</div><div class="ttdef"><b>Definition</b> <a href="component__options_8hpp_source.html#l00176">component_options.hpp:176</a></div></div>
|
||
|
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<div class="ttc" id="astructftxui_1_1InputState_html"><div class="ttname"><a href="structftxui_1_1InputState.html">ftxui::InputState</a></div><div class="ttdoc">Used to define style for the Input component.</div><div class="ttdef"><b>Definition</b> <a href="component__options_8hpp_source.html#l00151">component_options.hpp:151</a></div></div>
|
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