FTXUI/loop_8cpp_source.html

288 lines
22 KiB
HTML
Raw Normal View History

<!-- HTML header for doxygen 1.9.8-->
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "https://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" lang="en-US">
<head>
<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
<meta http-equiv="X-UA-Compatible" content="IE=11"/>
<meta name="generator" content="Doxygen 1.12.0"/>
<meta name="viewport" content="width=device-width, initial-scale=1"/>
<title>FTXUI: loop.cpp Source File</title>
<link href="tabs.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="jquery.js"></script>
<script type="text/javascript" src="dynsections.js"></script>
<script type="text/javascript" src="doxygen-awesome-fragment-copy-button.js"></script>
<script type="text/javascript" src="doxygen-awesome-paragraph-link.js"></script>
<script type="text/javascript" src="doxygen-awesome-interactive-toc.js"></script>
<script type="text/javascript" src="doxygen-awesome-tabs.js"></script>
<script type="module">
DoxygenAwesomeFragmentCopyButton.init()
DoxygenAwesomeParagraphLink.init()
DoxygenAwesomeInteractiveToc.init()
DoxygenAwesomeTabs.init()
await new Promise(r => window.addEventListener('DOMContentLoaded', r));
// Remove title when a img[alt='title-img'] is present.
// Find an image with the alt "img-title".
const img = document.querySelector("img[alt='title-img']");
const header = document.querySelector(".headertitle");
if (img && header) {
// Hide the header title progressively.
header.style.display = "none";
// Show progressively the image.
img.style.maxHeight = "40vh";
img.style.maxWidth = "100%";
img.style.objectFit = "contain";
}
// In the "examples.html" page. Turn every link with text
// "examples/<...>
//
// Add a "demo" link toward.
// https://arthursonzogni.github.io/FTXUI/examples/?file=<...>
const examples = document.querySelectorAll("a")
examples.forEach((example) => {
if (!example.textContent.startsWith("examples/")) {
return;
}
// Remove the ".cpp" extension from the example name.
const exampleName = example.textContent.replace("examples/", "").replace(".cpp", "");
const a = document.createElement("a");
a.textContent = "[demo]";
a.href = "https://arthursonzogni.github.io/FTXUI/examples/?file=" + exampleName;
a.style.marginRight= "1em";
a.style.fontWeight = "bold";
example.parentElement.insertBefore(a, example)
});
// If the current URL ends with -example.html, we can add a link to the demo
// as well using the div.title textContent.
const url = new URL(window.location.href);
if (url.pathname.endsWith("-example.html")) {
// Get the title text.
const title = document.querySelector("div.title").textContent;
const example = title.replace("examples/", "").replace(".cpp", "");
// Create a link to the demo.
const a = document.createElement("a");
a.textContent = "[demo]";
a.href = "https://arthursonzogni.github.io/FTXUI/examples/?file=" + example;
a.style.marginLeft = "1em";
a.style.fontWeight = "bold";
a.style.display = "inline-block";
// Insert the link after the title.
const titleDiv = document.querySelector("div.title");
if (titleDiv) {
titleDiv.insertBefore(a, titleDiv.nextSibling);
}
}
</script>
<script type="module">
// Click on the navtree, except for the main page where this is already done
// automatically.
let delay = 0;
while(true) {
const navtree = document.querySelector("div.item.selected");
if (!navtree) {
delay *= 2;
delay += 1;
await new Promise(resolve => setTimeout(resolve, delay));
continue;
}
// Include only selected navtree items.
console.log("navtree.textContent", navtree.textContent);
if (!navtree.textContent.includes("Getting Started") &&
!navtree.textContent.includes("Installation") &&
!navtree.textContent.includes("ftxui / screen") &&
!navtree.textContent.includes("ftxui / dom") &&
!navtree.textContent.includes("ftxui / component") &&
!navtree.textContent.includes("Reference")) {
break;
}
// Find the first link inside the navtree.
const link = navtree.querySelector("a");
if (link) {
// Simulate a click on the link.
link.click();
break;
}
}
</script>
<link href="navtree.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="navtreedata.js"></script>
<script type="text/javascript" src="navtree.js"></script>
<script type="text/javascript" src="resize.js"></script>
<script type="text/javascript" src="cookie.js"></script>
<link href="search/search.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="search/searchdata.js"></script>
<script type="text/javascript" src="search/search.js"></script>
<link href="doxygen.css" rel="stylesheet" type="text/css" />
<link href="doxygen-awesome.css" rel="stylesheet" type="text/css"/>
<link href="stylesheet.css" rel="stylesheet" type="text/css"/>
</head>
<body>
<div id="top"><!-- do not remove this div, it is closed by doxygen! -->
<div id="titlearea">
<table cellspacing="0" cellpadding="0">
<tbody>
<tr id="projectrow">
<td id="projectalign">
<div id="projectname">FTXUI<span id="projectnumber">&#160;6.1.9</span>
</div>
<div id="projectbrief">C++ functional terminal UI.</div>
</td>
</tr>
</tbody>
</table>
</div>
<!-- end header part -->
<!-- Generated by Doxygen 1.12.0 -->
<script type="text/javascript">
/* @license magnet:?xt=urn:btih:d3d9a9a6595521f9666a5e94cc830dab83b65699&amp;dn=expat.txt MIT */
var searchBox = new SearchBox("searchBox", "search/",'.html');
/* @license-end */
</script>
<script type="text/javascript">
/* @license magnet:?xt=urn:btih:d3d9a9a6595521f9666a5e94cc830dab83b65699&amp;dn=expat.txt MIT */
$(function() { codefold.init(0); });
/* @license-end */
</script>
<script type="text/javascript" src="menudata.js"></script>
<script type="text/javascript" src="menu.js"></script>
<script type="text/javascript">
/* @license magnet:?xt=urn:btih:d3d9a9a6595521f9666a5e94cc830dab83b65699&amp;dn=expat.txt MIT */
$(function() {
initMenu('',true,false,'search.php','Search',true);
$(function() { init_search(); });
});
/* @license-end */
</script>
<div id="main-nav"></div>
</div><!-- top -->
<div id="side-nav" class="ui-resizable side-nav-resizable">
<div id="nav-tree">
<div id="nav-tree-contents">
<div id="nav-sync" class="sync"></div>
</div>
</div>
<div id="splitbar" style="-moz-user-select:none;"
class="ui-resizable-handle">
</div>
</div>
<script type="text/javascript">
/* @license magnet:?xt=urn:btih:d3d9a9a6595521f9666a5e94cc830dab83b65699&amp;dn=expat.txt MIT */
$(function(){initNavTree('loop_8cpp_source.html',''); initResizable(true); });
/* @license-end */
</script>
<div id="doc-content">
<!-- window showing the filter options -->
<div id="MSearchSelectWindow"
onmouseover="return searchBox.OnSearchSelectShow()"
onmouseout="return searchBox.OnSearchSelectHide()"
onkeydown="return searchBox.OnSearchSelectKey(event)">
</div>
<!-- iframe showing the search results (closed by default) -->
<div id="MSearchResultsWindow">
<div id="MSearchResults">
<div class="SRPage">
<div id="SRIndex">
<div id="SRResults"></div>
<div class="SRStatus" id="Loading">Loading...</div>
<div class="SRStatus" id="Searching">Searching...</div>
<div class="SRStatus" id="NoMatches">No Matches</div>
</div>
</div>
</div>
</div>
<div class="header">
<div class="headertitle"><div class="title">loop.cpp</div></div>
</div><!--header-->
<div class="contents">
<a href="loop_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="comment">// Copyright 2022 Arthur Sonzogni. All rights reserved.</span></div>
<div class="line"><a id="l00002" name="l00002"></a><span class="lineno"> 2</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="l00003" name="l00003"></a><span class="lineno"> 3</span><span class="comment">// the LICENSE file.</span></div>
<div class="line"><a id="l00004" name="l00004"></a><span class="lineno"> 4</span><span class="preprocessor">#include &quot;<a class="code" href="loop_8hpp.html">ftxui/component/loop.hpp</a>&quot;</span></div>
<div class="line"><a id="l00005" name="l00005"></a><span class="lineno"> 5</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> </div>
<div class="line"><a id="l00008" name="l00008"></a><span class="lineno"> 8</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 ScreenInteractive, Component</span></div>
<div class="line"><a id="l00009" name="l00009"></a><span class="lineno"> 9</span> </div>
<div class="line"><a id="l00010" name="l00010"></a><span class="lineno"> 10</span><span class="keyword">namespace </span><a class="code hl_namespace" href="namespaceftxui.html">ftxui</a> {</div>
<div class="line"><a id="l00011" name="l00011"></a><span class="lineno"> 11</span><span class="comment"></span> </div>
<div class="line"><a id="l00012" name="l00012"></a><span class="lineno"> 12</span><span class="comment">/// @brief A Loop is a wrapper around a Component and a ScreenInteractive.</span></div>
<div class="line"><a id="l00013" name="l00013"></a><span class="lineno"> 13</span><span class="comment">/// It is used to run a Component in a terminal.</span></div>
<div class="line"><a id="l00014" name="l00014"></a><span class="lineno"> 14</span><span class="comment">/// @see Component, ScreenInteractive.</span></div>
<div class="line"><a id="l00015" name="l00015"></a><span class="lineno"> 15</span><span class="comment">/// @see ScreenInteractive::Loop().</span></div>
<div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span><span class="comment">/// @see ScreenInteractive::ExitLoop().</span></div>
<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span><span class="comment">/// @param[in] screen The screen to use.</span></div>
<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span><span class="comment">/// @param[in] component The component to run.</span></div>
<div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span><span class="comment"></span><span class="comment">// NOLINTNEXTLINE</span></div>
<div class="foldopen" id="foldopen00020" data-start="{" data-end="}">
<div class="line"><a id="l00020" name="l00020"></a><span class="lineno"><a class="line" href="group__component.html#aacbc899babaac445c3b9b831322e8c70"> 20</a></span><a class="code hl_function" href="group__component.html#aacbc899babaac445c3b9b831322e8c70">Loop::Loop</a>(<a class="code hl_class" href="group__component.html#classftxui_1_1ScreenInteractive">ScreenInteractive</a>* screen, <a class="code hl_typedef" href="namespaceftxui.html#af1479ede01dbf087342534ab4ada11d3">Component</a> component)</div>
<div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span> : screen_(screen), component_(std::move(component)) {</div>
<div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span> screen_-&gt;PreMain();</div>
<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span>}</div>
</div>
<div class="line"><a id="l00024" name="l00024"></a><span class="lineno"> 24</span> </div>
<div class="foldopen" id="foldopen00025" data-start="{" data-end="}">
<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"><a class="line" href="group__component.html#a84c72a09400ffc01ce3257d2109453a2"> 25</a></span><a class="code hl_function" href="group__component.html#a84c72a09400ffc01ce3257d2109453a2">Loop::~Loop</a>() {</div>
<div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span> screen_-&gt;PostMain();</div>
<div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span>}</div>
</div>
<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span><span class="comment"></span> </div>
<div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span><span class="comment">/// @brief Whether the loop has quitted.</span></div>
<div class="foldopen" id="foldopen00030" data-start="{" data-end="}">
<div class="line"><a id="l00030" name="l00030"></a><span class="lineno"><a class="line" href="group__component.html#a0f10869cb1cad212e8885deac6960a41"> 30</a></span><span class="comment"></span><span class="keywordtype">bool</span> <a class="code hl_function" href="group__component.html#a0f10869cb1cad212e8885deac6960a41">Loop::HasQuitted</a>() {</div>
<div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span> <span class="keywordflow">return</span> screen_-&gt;HasQuitted();</div>
<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span>}</div>
</div>
<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span><span class="comment"></span> </div>
<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span><span class="comment">/// @brief Execute the loop. Make the `component` to process every pending</span></div>
<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span><span class="comment">/// tasks/events. A new frame might be drawn if the previous was invalidated.</span></div>
<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span><span class="comment">/// Return true until the loop hasn&#39;t completed.</span></div>
<div class="foldopen" id="foldopen00037" data-start="{" data-end="}">
<div class="line"><a id="l00037" name="l00037"></a><span class="lineno"><a class="line" href="group__component.html#ad638ec512bc0d9876c2bf1c15913e9d3"> 37</a></span><span class="comment"></span><span class="keywordtype">void</span> <a class="code hl_function" href="group__component.html#ad638ec512bc0d9876c2bf1c15913e9d3">Loop::RunOnce</a>() {</div>
<div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span> screen_-&gt;RunOnce(component_);</div>
<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span>}</div>
</div>
<div class="line"><a id="l00040" name="l00040"></a><span class="lineno"> 40</span><span class="comment"></span> </div>
<div class="line"><a id="l00041" name="l00041"></a><span class="lineno"> 41</span><span class="comment">/// @brief Wait for at least one event to be handled and execute</span></div>
<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span><span class="comment">/// `Loop::RunOnce()`.</span></div>
<div class="foldopen" id="foldopen00043" data-start="{" data-end="}">
<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"><a class="line" href="group__component.html#afe89c4e52cb64cd7271c3fa8a04e7b61"> 43</a></span><span class="comment"></span><span class="keywordtype">void</span> <a class="code hl_function" href="group__component.html#afe89c4e52cb64cd7271c3fa8a04e7b61">Loop::RunOnceBlocking</a>() {</div>
<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span> screen_-&gt;RunOnceBlocking(component_);</div>
<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span>}</div>
</div>
<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span><span class="comment"></span> </div>
<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span><span class="comment">/// Execute the loop, blocking the current thread, up until the loop has</span></div>
<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span><span class="comment">/// quitted.</span></div>
<div class="foldopen" id="foldopen00049" data-start="{" data-end="}">
<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"><a class="line" href="group__component.html#aa3eca255b6be227d7d901cc2a72017a5"> 49</a></span><span class="comment"></span><span class="keywordtype">void</span> <a class="code hl_function" href="group__component.html#aa3eca255b6be227d7d901cc2a72017a5">Loop::Run</a>() {</div>
<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span> <span class="keywordflow">while</span> (!<a class="code hl_function" href="group__component.html#a0f10869cb1cad212e8885deac6960a41">HasQuitted</a>()) {</div>
<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span> <a class="code hl_function" href="group__component.html#afe89c4e52cb64cd7271c3fa8a04e7b61">RunOnceBlocking</a>();</div>
<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span> }</div>
<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span>}</div>
</div>
<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span> </div>
<div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span>} <span class="comment">// namespace ftxui</span></div>
<div class="ttc" id="agroup__component_html_a0f10869cb1cad212e8885deac6960a41"><div class="ttname"><a href="group__component.html#a0f10869cb1cad212e8885deac6960a41">ftxui::Loop::HasQuitted</a></div><div class="ttdeci">bool HasQuitted()</div><div class="ttdoc">Whether the loop has quitted.</div><div class="ttdef"><b>Definition</b> <a href="#l00030">loop.cpp:30</a></div></div>
<div class="ttc" id="agroup__component_html_a84c72a09400ffc01ce3257d2109453a2"><div class="ttname"><a href="group__component.html#a84c72a09400ffc01ce3257d2109453a2">ftxui::Loop::~Loop</a></div><div class="ttdeci">~Loop()</div><div class="ttdef"><b>Definition</b> <a href="#l00025">loop.cpp:25</a></div></div>
<div class="ttc" id="agroup__component_html_aa3eca255b6be227d7d901cc2a72017a5"><div class="ttname"><a href="group__component.html#aa3eca255b6be227d7d901cc2a72017a5">ftxui::Loop::Run</a></div><div class="ttdeci">void Run()</div><div class="ttdef"><b>Definition</b> <a href="#l00049">loop.cpp:49</a></div></div>
<div class="ttc" id="agroup__component_html_aacbc899babaac445c3b9b831322e8c70"><div class="ttname"><a href="group__component.html#aacbc899babaac445c3b9b831322e8c70">ftxui::Loop::Loop</a></div><div class="ttdeci">Loop(ScreenInteractive *screen, Component component)</div><div class="ttdoc">A Loop is a wrapper around a Component and a ScreenInteractive. It is used to run a Component in a te...</div><div class="ttdef"><b>Definition</b> <a href="#l00020">loop.cpp:20</a></div></div>
<div class="ttc" id="agroup__component_html_ad638ec512bc0d9876c2bf1c15913e9d3"><div class="ttname"><a href="group__component.html#ad638ec512bc0d9876c2bf1c15913e9d3">ftxui::Loop::RunOnce</a></div><div class="ttdeci">void RunOnce()</div><div class="ttdoc">Execute the loop. Make the component to process every pending tasks/events. A new frame might be draw...</div><div class="ttdef"><b>Definition</b> <a href="#l00037">loop.cpp:37</a></div></div>
<div class="ttc" id="agroup__component_html_afe89c4e52cb64cd7271c3fa8a04e7b61"><div class="ttname"><a href="group__component.html#afe89c4e52cb64cd7271c3fa8a04e7b61">ftxui::Loop::RunOnceBlocking</a></div><div class="ttdeci">void RunOnceBlocking()</div><div class="ttdoc">Wait for at least one event to be handled and execute Loop::RunOnce().</div><div class="ttdef"><b>Definition</b> <a href="#l00043">loop.cpp:43</a></div></div>
<div class="ttc" id="agroup__component_html_classftxui_1_1ScreenInteractive"><div class="ttname"><a href="group__component.html#classftxui_1_1ScreenInteractive">ftxui::ScreenInteractive</a></div><div class="ttdoc">ScreenInteractive is a Screen that can handle events, run a main loop, and manage components.</div><div class="ttdef"><b>Definition</b> <a href="screen__interactive_8hpp_source.html#l00033">screen_interactive.hpp:33</a></div></div>
<div class="ttc" id="aloop_8hpp_html"><div class="ttname"><a href="loop_8hpp.html">loop.hpp</a></div></div>
<div class="ttc" id="anamespaceftxui_html"><div class="ttname"><a href="namespaceftxui.html">ftxui</a></div><div class="ttdoc">The FTXUI ftxui:: namespace.</div><div class="ttdef"><b>Definition</b> <a href="animation_8hpp_source.html#l00010">animation.hpp:10</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#l00024">component_base.hpp:24</a></div></div>
<div class="ttc" id="ascreen__interactive_8hpp_html"><div class="ttname"><a href="screen__interactive_8hpp.html">screen_interactive.hpp</a></div></div>
</div><!-- fragment --></div><!-- contents -->
</div><!-- doc-content -->
<!-- HTML footer for doxygen 1.9.8-->
<!-- start footer part -->
<div id="nav-path" class="navpath"><!-- id is needed for treeview function! -->
<ul>
<li class="navelem"><a class="el" href="dir_68267d1309a1af8e8297ef4c3efbcdba.html">src</a></li><li class="navelem"><a class="el" href="dir_aca3139ef08e710186b498ba0b7d3b1a.html">ftxui</a></li><li class="navelem"><a class="el" href="dir_591e152ed8a369b957ed274cdb7355d5.html">component</a></li><li class="navelem"><a class="el" href="loop_8cpp.html">loop.cpp</a></li>
<li class="footer">Generated by <a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.12.0 </li>
</ul>
</div>
</body>
</html>