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<div class="headertitle"><div class="title">node.cpp</div></div>
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<a href="node_8cpp.html">浏览该文件的文档.</a><div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno"> 1</span><span class="comment">// 版权所有 2020 Arthur Sonzogni. 保留所有权利。</span></div>
<div class="line"><a id="l00002" name="l00002"></a><span class="lineno"> 2</span><span class="comment">// 本源代码的使用受 MIT 许可协议的约束，该协议可在</span></div>
<div class="line"><a id="l00003" name="l00003"></a><span class="lineno"> 3</span><span class="comment">// LICENSE 文件中找到。</span></div>
<div class="line"><a id="l00004" name="l00004"></a><span class="lineno"> 4</span><span class="preprocessor">#include &lt;<a class="code" href="box_8hpp.html">ftxui/screen/box.hpp</a>&gt;</span> <span class="comment">// for Box</span></div>
<div class="line"><a id="l00005" name="l00005"></a><span class="lineno"> 5</span><span class="preprocessor">#include &lt;string&gt;</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 &lt;cstddef&gt;</span></div>
<div class="line"><a id="l00009" name="l00009"></a><span class="lineno"> 9</span><span class="preprocessor">#include &quot;<a class="code" href="node_8hpp.html">ftxui/dom/node.hpp</a>&quot;</span></div>
<div class="line"><a id="l00010" name="l00010"></a><span class="lineno"> 10</span><span class="preprocessor">#include &quot;<a class="code" href="selection_8hpp.html">ftxui/dom/selection.hpp</a>&quot;</span> <span class="comment">// for Selection</span></div>
<div class="line"><a id="l00011" name="l00011"></a><span class="lineno"> 11</span><span class="preprocessor">#include &quot;<a class="code" href="screen_8hpp.html">ftxui/screen/screen.hpp</a>&quot;</span> <span class="comment">// for Screen</span></div>
<div class="line"><a id="l00012" name="l00012"></a><span class="lineno"> 12</span> </div>
<div class="line"><a id="l00013" name="l00013"></a><span class="lineno"> 13</span><span class="keyword">namespace </span><a class="code hl_namespace" href="namespaceftxui.html">ftxui</a> {</div>
<div class="line"><a id="l00014" name="l00014"></a><span class="lineno"> 14</span> </div>
<div class="line"><a id="l00015" name="l00015"></a><span class="lineno"> 15</span><a class="code hl_function" href="group__dom.html#a0d313fac56abd7ebe58a17f1530b879e">Node::Node</a>() = <span class="keywordflow">default</span>;</div>
<div class="line"><a id="l00016" name="l00016"></a><span class="lineno"><a class="line" href="group__dom.html#a19fa1eae4c02e514c62a95e395b383a1"> 16</a></span><a class="code hl_function" href="group__dom.html#a0d313fac56abd7ebe58a17f1530b879e">Node::Node</a>(<a class="code hl_typedef" href="namespaceftxui.html#a5d4aa06ca6cc6a72e981bd5386f93f0a">Elements</a> children) : children_(std::move(children)) {}</div>
<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span><a class="code hl_function" href="group__dom.html#a6fa6bf60f34f1e3efb0e59333428c9c8">Node::~Node</a>() = <span class="keywordflow">default</span>;</div>
<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span><span class="comment"></span> </div>
<div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span><span class="comment">/// @brief 计算元素所需的空间。</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__dom.html#a40bd818c5de23bb2d208360d275ae59d"> 20</a></span><span class="comment"></span><span class="keywordtype">void</span> <a class="code hl_function" href="group__dom.html#a40bd818c5de23bb2d208360d275ae59d">Node::ComputeRequirement</a>() {</div>
<div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span> <span class="keywordflow">if</span> (<a class="code hl_variable" href="group__dom.html#a2aeb117dade3254694355ab90e9fc566">children_</a>.empty()) {</div>
<div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span> <span class="keywordflow">return</span>;</div>
<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span> }</div>
<div class="line"><a id="l00024" name="l00024"></a><span class="lineno"> 24</span> <span class="keywordflow">for</span> (<span class="keyword">auto</span>&amp; child : <a class="code hl_variable" href="group__dom.html#a2aeb117dade3254694355ab90e9fc566">children_</a>) {</div>
<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span> child-&gt;ComputeRequirement();</div>
<div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span> }</div>
<div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span> </div>
<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span> <span class="comment">// 默认情况下，需求是第一个子元素的需求。</span></div>
<div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span> <a class="code hl_variable" href="group__dom.html#a3530d99687053ce0d0006b9dee9a1ca7">requirement_</a> = <a class="code hl_variable" href="group__dom.html#a2aeb117dade3254694355ab90e9fc566">children_</a>[0]-&gt;requirement();</div>
<div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span> </div>
<div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span> <span class="comment">// 传播焦点需求。</span></div>
<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span> <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 1; i &lt; <a class="code hl_variable" href="group__dom.html#a2aeb117dade3254694355ab90e9fc566">children_</a>.size(); ++i) {</div>
<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span> <span class="keywordflow">if</span> (!<a class="code hl_variable" href="group__dom.html#a3530d99687053ce0d0006b9dee9a1ca7">requirement_</a>.<a class="code hl_variable" href="group__dom.html#aa4da656616dd87d4e82a4ee718db6b3c">focused</a>.<a class="code hl_variable" href="structftxui_1_1Requirement_1_1Focused.html#a8740ba80e30dd75e71d09fa1dcf04f3d">enabled</a> &amp;&amp;</div>
<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span> <a class="code hl_variable" href="group__dom.html#a2aeb117dade3254694355ab90e9fc566">children_</a>[i]-&gt;requirement().focused.enabled) {</div>
<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span> <a class="code hl_variable" href="group__dom.html#a3530d99687053ce0d0006b9dee9a1ca7">requirement_</a>.<a class="code hl_variable" href="group__dom.html#aa4da656616dd87d4e82a4ee718db6b3c">focused</a> = <a class="code hl_variable" href="group__dom.html#a2aeb117dade3254694355ab90e9fc566">children_</a>[i]-&gt;requirement().focused;</div>
<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span> }</div>
<div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span> }</div>
<div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span>}</div>
</div>
<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span><span class="comment"></span> </div>
<div class="line"><a id="l00040" name="l00040"></a><span class="lineno"> 40</span><span class="comment">/// @brief 为绘图元素分配位置和尺寸。</span></div>
<div class="foldopen" id="foldopen00041" data-start="{" data-end="}">
<div class="line"><a id="l00041" name="l00041"></a><span class="lineno"><a class="line" href="group__dom.html#a2ed318aaadb07efc50e76fce1ccf9637"> 41</a></span><span class="comment"></span><span class="keywordtype">void</span> <a class="code hl_function" href="group__dom.html#a2ed318aaadb07efc50e76fce1ccf9637">Node::SetBox</a>(<a class="code hl_struct" href="group__screen.html#structftxui_1_1Box">Box</a> box) {</div>
<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span> <a class="code hl_variable" href="group__dom.html#aa7e7d30102945911407723a5cbcdfabc">box_</a> = box;</div>
<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span>}</div>
</div>
<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span><span class="comment"></span> </div>
<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span><span class="comment">/// @brief 计算元素的选区。</span></div>
<div class="foldopen" id="foldopen00046" data-start="{" data-end="}">
<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"><a class="line" href="group__dom.html#a05352f5a353f1e86630a978060e77305"> 46</a></span><span class="comment"></span><span class="keywordtype">void</span> <a class="code hl_function" href="group__dom.html#a05352f5a353f1e86630a978060e77305">Node::Select</a>(<a class="code hl_class" href="group__dom.html#classftxui_1_1Selection">Selection</a>&amp; selection) {</div>
<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span> <span class="comment">// 如果此节点 box_ 不与选区相交，则不进行选区。</span></div>
<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span> <span class="keywordflow">if</span> (<a class="code hl_function" href="group__screen.html#a83d40499d9e8740c35dc2352c2ac84a8">Box::Intersection</a>(selection.<a class="code hl_function" href="group__dom.html#a03f5cc5dcad10fecb7a0b8203c86a13e">GetBox</a>(), <a class="code hl_variable" href="group__dom.html#aa7e7d30102945911407723a5cbcdfabc">box_</a>).IsEmpty()) {</div>
<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"> 49</span> <span class="keywordflow">return</span>;</div>
<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span> }</div>
<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span> </div>
<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span> <span class="comment">// 默认情况下，我们将选择推迟到子元素。</span></div>
<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span> <span class="keywordflow">for</span> (<span class="keyword">auto</span>&amp; child : <a class="code hl_variable" href="group__dom.html#a2aeb117dade3254694355ab90e9fc566">children_</a>) {</div>
<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span> child-&gt;Select(selection);</div>
<div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span> }</div>
<div class="line"><a id="l00056" name="l00056"></a><span class="lineno"> 56</span>}</div>
</div>
<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span><span class="comment"></span> </div>
<div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span><span class="comment">/// @brief 在 ftxui::Screen 上显示元素。</span></div>
<div class="foldopen" id="foldopen00059" data-start="{" data-end="}">
<div class="line"><a id="l00059" name="l00059"></a><span class="lineno"><a class="line" href="group__dom.html#a7e286fe14880614686ceeec84a9a9702"> 59</a></span><span class="comment"></span><span class="keywordtype">void</span> <a class="code hl_friend" href="group__dom.html#ab35030b64136afa183d474d11bd1f6dd">Node::Render</a>(<a class="code hl_class" href="group__screen.html#classftxui_1_1Screen">Screen</a>&amp; screen) {</div>
<div class="line"><a id="l00060" name="l00060"></a><span class="lineno"> 60</span> <span class="keywordflow">for</span> (<span class="keyword">auto</span>&amp; child : <a class="code hl_variable" href="group__dom.html#a2aeb117dade3254694355ab90e9fc566">children_</a>) {</div>
<div class="line"><a id="l00061" name="l00061"></a><span class="lineno"> 61</span> child-&gt;Render(screen);</div>
<div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span> }</div>
<div class="line"><a id="l00063" name="l00063"></a><span class="lineno"> 63</span>}</div>
</div>
<div class="line"><a id="l00064" name="l00064"></a><span class="lineno"> 64</span> </div>
<div class="foldopen" id="foldopen00065" data-start="{" data-end="}">
<div class="line"><a id="l00065" name="l00065"></a><span class="lineno"><a class="line" href="group__dom.html#a5b71d891a102197f2856f53702425581"> 65</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="group__dom.html#a5b71d891a102197f2856f53702425581">Node::Check</a>(<a class="code hl_struct" href="structftxui_1_1Node_1_1Status.html">Status</a>* status) {</div>
<div class="line"><a id="l00066" name="l00066"></a><span class="lineno"> 66</span> <span class="keywordflow">for</span> (<span class="keyword">auto</span>&amp; child : <a class="code hl_variable" href="group__dom.html#a2aeb117dade3254694355ab90e9fc566">children_</a>) {</div>
<div class="line"><a id="l00067" name="l00067"></a><span class="lineno"> 67</span> child-&gt;Check(status);</div>
<div class="line"><a id="l00068" name="l00068"></a><span class="lineno"> 68</span> }</div>
<div class="line"><a id="l00069" name="l00069"></a><span class="lineno"> 69</span> status-&gt;<a class="code hl_variable" href="structftxui_1_1Node_1_1Status.html#a0fffbfa5479a3b6d3ddf5ff13504a51c">need_iteration</a> |= (status-&gt;<a class="code hl_variable" href="structftxui_1_1Node_1_1Status.html#aa6371382c6b4224e577e14ea610ab9a9">iteration</a> == 0);</div>
<div class="line"><a id="l00070" name="l00070"></a><span class="lineno"> 70</span>}</div>
</div>
<div class="line"><a id="l00071" name="l00071"></a><span class="lineno"> 71</span> </div>
<div class="foldopen" id="foldopen00072" data-start="{" data-end="}">
<div class="line"><a id="l00072" name="l00072"></a><span class="lineno"><a class="line" href="group__dom.html#a2c5cebe05557529299e649867b499680"> 72</a></span>std::string <a class="code hl_function" href="group__dom.html#a2c5cebe05557529299e649867b499680">Node::GetSelectedContent</a>(<a class="code hl_class" href="group__dom.html#classftxui_1_1Selection">Selection</a>&amp; selection) {</div>
<div class="line"><a id="l00073" name="l00073"></a><span class="lineno"> 73</span> std::string content;</div>
<div class="line"><a id="l00074" name="l00074"></a><span class="lineno"> 74</span> </div>
<div class="line"><a id="l00075" name="l00075"></a><span class="lineno"> 75</span> <span class="keywordflow">for</span> (<span class="keyword">auto</span>&amp; child : <a class="code hl_variable" href="group__dom.html#a2aeb117dade3254694355ab90e9fc566">children_</a>) {</div>
<div class="line"><a id="l00076" name="l00076"></a><span class="lineno"> 76</span> content += child-&gt;GetSelectedContent(selection);</div>
<div class="line"><a id="l00077" name="l00077"></a><span class="lineno"> 77</span> }</div>
<div class="line"><a id="l00078" name="l00078"></a><span class="lineno"> 78</span> </div>
<div class="line"><a id="l00079" name="l00079"></a><span class="lineno"> 79</span> <span class="keywordflow">return</span> content;</div>
<div class="line"><a id="l00080" name="l00080"></a><span class="lineno"> 80</span>}</div>
</div>
<div class="line"><a id="l00081" name="l00081"></a><span class="lineno"> 81</span><span class="comment"></span> </div>
<div class="line"><a id="l00082" name="l00082"></a><span class="lineno"> 82</span><span class="comment">/// @brief 在 ftxui::Screen 上显示元素。</span></div>
<div class="line"><a id="l00083" name="l00083"></a><span class="lineno"> 83</span><span class="comment">/// @ingroup dom</span></div>
<div class="foldopen" id="foldopen00084" data-start="{" data-end="}">
<div class="line"><a id="l00084" name="l00084"></a><span class="lineno"><a class="line" href="group__dom.html#gad4b8aa9392f56ba41e2b421e046a7d83"> 84</a></span><span class="comment"></span><span class="keywordtype">void</span> <a class="code hl_function" href="group__dom.html#gad4b8aa9392f56ba41e2b421e046a7d83">Render</a>(<a class="code hl_class" href="group__screen.html#classftxui_1_1Screen">Screen</a>&amp; screen, <span class="keyword">const</span> <a class="code hl_typedef" href="namespaceftxui.html#a2bc31f2d685189e5c61d2293a1f51b4f">Element</a>&amp; element) {</div>
<div class="line"><a id="l00085" name="l00085"></a><span class="lineno"> 85</span> <a class="code hl_class" href="group__dom.html#classftxui_1_1Selection">Selection</a> selection;</div>
<div class="line"><a id="l00086" name="l00086"></a><span class="lineno"> 86</span> <a class="code hl_function" href="group__dom.html#gad4b8aa9392f56ba41e2b421e046a7d83">Render</a>(screen, element.get(), selection);</div>
<div class="line"><a id="l00087" name="l00087"></a><span class="lineno"> 87</span>}</div>
</div>
<div class="line"><a id="l00088" name="l00088"></a><span class="lineno"> 88</span><span class="comment"></span> </div>
<div class="line"><a id="l00089" name="l00089"></a><span class="lineno"> 89</span><span class="comment">/// @brief 在 ftxui::Screen 上显示元素。</span></div>
<div class="line"><a id="l00090" name="l00090"></a><span class="lineno"> 90</span><span class="comment">/// @ingroup dom</span></div>
<div class="foldopen" id="foldopen00091" data-start="{" data-end="}">
<div class="line"><a id="l00091" name="l00091"></a><span class="lineno"><a class="line" href="group__dom.html#ga32a24db985fa1b37bf686b00f7e1b4ff"> 91</a></span><span class="comment"></span><span class="keywordtype">void</span> <a class="code hl_function" href="group__dom.html#gad4b8aa9392f56ba41e2b421e046a7d83">Render</a>(<a class="code hl_class" href="group__screen.html#classftxui_1_1Screen">Screen</a>&amp; screen, <a class="code hl_class" href="group__dom.html#classftxui_1_1Node">Node</a>* node) {</div>
<div class="line"><a id="l00092" name="l00092"></a><span class="lineno"> 92</span> <a class="code hl_class" href="group__dom.html#classftxui_1_1Selection">Selection</a> selection;</div>
<div class="line"><a id="l00093" name="l00093"></a><span class="lineno"> 93</span> <a class="code hl_function" href="group__dom.html#gad4b8aa9392f56ba41e2b421e046a7d83">Render</a>(screen, node, selection);</div>
<div class="line"><a id="l00094" name="l00094"></a><span class="lineno"> 94</span>}</div>
</div>
<div class="line"><a id="l00095" name="l00095"></a><span class="lineno"> 95</span> </div>
<div class="foldopen" id="foldopen00096" data-start="{" data-end="};">
<div class="line"><a id="l00096" name="l00096"></a><span class="lineno"><a class="line" href="group__dom.html#ab35030b64136afa183d474d11bd1f6dd"> 96</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="group__dom.html#gad4b8aa9392f56ba41e2b421e046a7d83">Render</a>(<a class="code hl_class" href="group__screen.html#classftxui_1_1Screen">Screen</a>&amp; screen, <a class="code hl_class" href="group__dom.html#classftxui_1_1Node">Node</a>* node, <a class="code hl_class" href="group__dom.html#classftxui_1_1Selection">Selection</a>&amp; selection) {</div>
<div class="line"><a id="l00097" name="l00097"></a><span class="lineno"> 97</span> <a class="code hl_struct" href="group__screen.html#structftxui_1_1Box">Box</a> box;</div>
<div class="line"><a id="l00098" name="l00098"></a><span class="lineno"> 98</span> box.<a class="code hl_variable" href="group__screen.html#ae0951dcafafdc96ac1d8361c672d47e2">x_min</a> = 0;</div>
<div class="line"><a id="l00099" name="l00099"></a><span class="lineno"> 99</span> box.<a class="code hl_variable" href="group__screen.html#a7941ddc7e35fffb8864af1e922814401">y_min</a> = 0;</div>
<div class="line"><a id="l00100" name="l00100"></a><span class="lineno"> 100</span> box.<a class="code hl_variable" href="group__screen.html#a5f0bb6d8a3e66525c3e6264cb8288e43">x_max</a> = screen.<a class="code hl_function" href="group__screen.html#ae7a460c9dacd70ed81b1adfea46b492e">dimx</a>() - 1;</div>
<div class="line"><a id="l00101" name="l00101"></a><span class="lineno"> 101</span> box.<a class="code hl_variable" href="group__screen.html#ad033aea530fbbcf5bcd6cd98d882e3a5">y_max</a> = screen.<a class="code hl_function" href="group__screen.html#a0d283cfb1ec16b3fc13d344ebfea93d4">dimy</a>() - 1;</div>
<div class="line"><a id="l00102" name="l00102"></a><span class="lineno"> 102</span> </div>
<div class="line"><a id="l00103" name="l00103"></a><span class="lineno"> 103</span> <a class="code hl_struct" href="structftxui_1_1Node_1_1Status.html">Node::Status</a> status;</div>
<div class="line"><a id="l00104" name="l00104"></a><span class="lineno"> 104</span> node-&gt;<a class="code hl_function" href="group__dom.html#a5b71d891a102197f2856f53702425581">Check</a>(&amp;status);</div>
<div class="line"><a id="l00105" name="l00105"></a><span class="lineno"> 105</span> <span class="keyword">const</span> <span class="keywordtype">int</span> max_iterations = 20;</div>
<div class="line"><a id="l00106" name="l00106"></a><span class="lineno"> 106</span> <span class="keywordflow">while</span> (status.<a class="code hl_variable" href="structftxui_1_1Node_1_1Status.html#a0fffbfa5479a3b6d3ddf5ff13504a51c">need_iteration</a> &amp;&amp; status.<a class="code hl_variable" href="structftxui_1_1Node_1_1Status.html#aa6371382c6b4224e577e14ea610ab9a9">iteration</a> &lt; max_iterations) {</div>
<div class="line"><a id="l00107" name="l00107"></a><span class="lineno"> 107</span> <span class="comment">// 步骤 1：查找此元素所需的尺寸。</span></div>
<div class="line"><a id="l00108" name="l00108"></a><span class="lineno"> 108</span> node-&gt;<a class="code hl_function" href="group__dom.html#a40bd818c5de23bb2d208360d275ae59d">ComputeRequirement</a>();</div>
<div class="line"><a id="l00109" name="l00109"></a><span class="lineno"> 109</span> </div>
<div class="line"><a id="l00110" name="l00110"></a><span class="lineno"> 110</span> <span class="comment">// 步骤 2：为元素分配尺寸。</span></div>
<div class="line"><a id="l00111" name="l00111"></a><span class="lineno"> 111</span> node-&gt;<a class="code hl_function" href="group__dom.html#a2ed318aaadb07efc50e76fce1ccf9637">SetBox</a>(box);</div>
<div class="line"><a id="l00112" name="l00112"></a><span class="lineno"> 112</span> </div>
<div class="line"><a id="l00113" name="l00113"></a><span class="lineno"> 113</span> <span class="comment">// 检查元素是否需要布局算法的另一次迭代。</span></div>
<div class="line"><a id="l00114" name="l00114"></a><span class="lineno"> 114</span> status.<a class="code hl_variable" href="structftxui_1_1Node_1_1Status.html#a0fffbfa5479a3b6d3ddf5ff13504a51c">need_iteration</a> = <span class="keyword">false</span>;</div>
<div class="line"><a id="l00115" name="l00115"></a><span class="lineno"> 115</span> status.<a class="code hl_variable" href="structftxui_1_1Node_1_1Status.html#aa6371382c6b4224e577e14ea610ab9a9">iteration</a>++;</div>
<div class="line"><a id="l00116" name="l00116"></a><span class="lineno"> 116</span> node-&gt;<a class="code hl_function" href="group__dom.html#a5b71d891a102197f2856f53702425581">Check</a>(&amp;status);</div>
<div class="line"><a id="l00117" name="l00117"></a><span class="lineno"> 117</span> }</div>
<div class="line"><a id="l00118" name="l00118"></a><span class="lineno"> 118</span> </div>
<div class="line"><a id="l00119" name="l00119"></a><span class="lineno"> 119</span> <span class="comment">// 步骤 3：选区</span></div>
<div class="line"><a id="l00120" name="l00120"></a><span class="lineno"> 120</span> <span class="keywordflow">if</span> (!selection.<a class="code hl_function" href="group__dom.html#a8e12342fc420701fbffd97025421575a">IsEmpty</a>()) {</div>
<div class="line"><a id="l00121" name="l00121"></a><span class="lineno"> 121</span> node-&gt;<a class="code hl_function" href="group__dom.html#a05352f5a353f1e86630a978060e77305">Select</a>(selection);</div>
<div class="line"><a id="l00122" name="l00122"></a><span class="lineno"> 122</span> }</div>
<div class="line"><a id="l00123" name="l00123"></a><span class="lineno"> 123</span> </div>
<div class="line"><a id="l00124" name="l00124"></a><span class="lineno"> 124</span> <span class="keywordflow">if</span> (node-&gt;<a class="code hl_function" href="group__dom.html#a39a263e8c8786dc62fcb4d734aad7fe6">requirement</a>().<a class="code hl_variable" href="group__dom.html#aa4da656616dd87d4e82a4ee718db6b3c">focused</a>.<a class="code hl_variable" href="structftxui_1_1Requirement_1_1Focused.html#a8740ba80e30dd75e71d09fa1dcf04f3d">enabled</a></div>
<div class="line"><a id="l00125" name="l00125"></a><span class="lineno"> 125</span>#<span class="keywordflow">if</span> defined(FTXUI_MICROSOFT_TERMINAL_FALLBACK)</div>
<div class="line"><a id="l00126" name="l00126"></a><span class="lineno"> 126</span> <span class="comment">// 将光标设置到正确的位置，可以让使用 CJK（中文、日文、韩文等）</span></div>
<div class="line"><a id="l00127" name="l00127"></a><span class="lineno"> 127</span> <span class="comment">// 字符的用户在正确的位置看到他们的[输入法编辑器]显示。参见[问题]。</span></div>
<div class="line"><a id="l00128" name="l00128"></a><span class="lineno"> 128</span> <span class="comment">//</span></div>
<div class="line"><a id="l00129" name="l00129"></a><span class="lineno"> 129</span> <span class="comment">// [输入法编辑器]:</span></div>
<div class="line"><a id="l00130" name="l00130"></a><span class="lineno"> 130</span> <span class="comment">// https://en.wikipedia.org/wiki/Input_method</span></div>
<div class="line"><a id="l00131" name="l00131"></a><span class="lineno"> 131</span> <span class="comment">//</span></div>
<div class="line"><a id="l00132" name="l00132"></a><span class="lineno"> 132</span> <span class="comment">// [问题]:</span></div>
<div class="line"><a id="l00133" name="l00133"></a><span class="lineno"> 133</span> <span class="comment">// https://github.com/ArthurSonzogni/FTXUI/issues/2#issuecomment-505282355</span></div>
<div class="line"><a id="l00134" name="l00134"></a><span class="lineno"> 134</span> <span class="comment">//</span></div>
<div class="line"><a id="l00135" name="l00135"></a><span class="lineno"> 135</span> <span class="comment">// 不幸的是，Microsoft 终端无法正确处理隐藏光标。</span></div>
<div class="line"><a id="l00136" name="l00136"></a><span class="lineno"> 136</span> <span class="comment">// 相反，光标下的字符被隐藏，这是一个大问题。</span></div>
<div class="line"><a id="l00137" name="l00137"></a><span class="lineno"> 137</span> <span class="comment">// 因此，我们无法启用将光标设置到正确位置的功能。</span></div>
<div class="line"><a id="l00138" name="l00138"></a><span class="lineno"> 138</span> <span class="comment">// 它将显示在右下角。</span></div>
<div class="line"><a id="l00139" name="l00139"></a><span class="lineno"> 139</span> <span class="comment">// 参见：</span></div>
<div class="line"><a id="l00140" name="l00140"></a><span class="lineno"> 140</span> <span class="comment">// https://github.com/microsoft/terminal/issues/1203</span></div>
<div class="line"><a id="l00141" name="l00141"></a><span class="lineno"> 141</span> <span class="comment">// https://github.com/microsoft/terminal/issues/3093</span></div>
<div class="line"><a id="l00142" name="l00142"></a><span class="lineno"> 142</span> &amp;&amp;</div>
<div class="line"><a id="l00143" name="l00143"></a><span class="lineno"> 143</span> node-&gt;<a class="code hl_function" href="group__dom.html#a39a263e8c8786dc62fcb4d734aad7fe6">requirement</a>().<a class="code hl_variable" href="group__dom.html#aa4da656616dd87d4e82a4ee718db6b3c">focused</a>.<a class="code hl_variable" href="structftxui_1_1Requirement_1_1Focused.html#a21f4c5c8f6862a204f795d4f0cb6d479">cursor_shape</a> != <a class="code hl_enumvalue" href="structftxui_1_1Screen_1_1Cursor.html#a55b506070847a13554f8b879c1bfb37cacf46e529658ebc6532c204f3246929f4">Screen::Cursor::Shape::Hidden</a></div>
<div class="line"><a id="l00144" name="l00144"></a><span class="lineno"> 144</span>#endif</div>
<div class="line"><a id="l00145" name="l00145"></a><span class="lineno"> 145</span> ) {</div>
<div class="line"><a id="l00146" name="l00146"></a><span class="lineno"> 146</span> screen.<a class="code hl_function" href="group__screen.html#a1aa24862a3d050b3aea2ade1300d51a7">SetCursor</a>(<a class="code hl_struct" href="structftxui_1_1Screen_1_1Cursor.html">Screen::Cursor</a>{</div>
<div class="line"><a id="l00147" name="l00147"></a><span class="lineno"> 147</span> node-&gt;<a class="code hl_function" href="group__dom.html#a39a263e8c8786dc62fcb4d734aad7fe6">requirement</a>().<a class="code hl_variable" href="group__dom.html#aa4da656616dd87d4e82a4ee718db6b3c">focused</a>.<a class="code hl_variable" href="structftxui_1_1Requirement_1_1Focused.html#ab88cd70dad2e152cea983610f2a16e68">node</a>-&gt;<a class="code hl_variable" href="group__dom.html#aa7e7d30102945911407723a5cbcdfabc">box_</a>.<a class="code hl_variable" href="group__screen.html#a5f0bb6d8a3e66525c3e6264cb8288e43">x_max</a>,</div>
<div class="line"><a id="l00148" name="l00148"></a><span class="lineno"> 148</span> node-&gt;<a class="code hl_function" href="group__dom.html#a39a263e8c8786dc62fcb4d734aad7fe6">requirement</a>().<a class="code hl_variable" href="group__dom.html#aa4da656616dd87d4e82a4ee718db6b3c">focused</a>.<a class="code hl_variable" href="structftxui_1_1Requirement_1_1Focused.html#ab88cd70dad2e152cea983610f2a16e68">node</a>-&gt;<a class="code hl_variable" href="group__dom.html#aa7e7d30102945911407723a5cbcdfabc">box_</a>.<a class="code hl_variable" href="group__screen.html#ad033aea530fbbcf5bcd6cd98d882e3a5">y_max</a>,</div>
<div class="line"><a id="l00149" name="l00149"></a><span class="lineno"> 149</span> node-&gt;<a class="code hl_function" href="group__dom.html#a39a263e8c8786dc62fcb4d734aad7fe6">requirement</a>().<a class="code hl_variable" href="group__dom.html#aa4da656616dd87d4e82a4ee718db6b3c">focused</a>.<a class="code hl_variable" href="structftxui_1_1Requirement_1_1Focused.html#a21f4c5c8f6862a204f795d4f0cb6d479">cursor_shape</a>,</div>
<div class="line"><a id="l00150" name="l00150"></a><span class="lineno"> 150</span> });</div>
<div class="line"><a id="l00151" name="l00151"></a><span class="lineno"> 151</span> } <span class="keywordflow">else</span> {</div>
<div class="line"><a id="l00152" name="l00152"></a><span class="lineno"> 152</span> screen.<a class="code hl_function" href="group__screen.html#a1aa24862a3d050b3aea2ade1300d51a7">SetCursor</a>(<a class="code hl_struct" href="structftxui_1_1Screen_1_1Cursor.html">Screen::Cursor</a>{</div>
<div class="line"><a id="l00153" name="l00153"></a><span class="lineno"> 153</span> screen.<a class="code hl_function" href="group__screen.html#ae7a460c9dacd70ed81b1adfea46b492e">dimx</a>() - 1,</div>
<div class="line"><a id="l00154" name="l00154"></a><span class="lineno"> 154</span> screen.<a class="code hl_function" href="group__screen.html#a0d283cfb1ec16b3fc13d344ebfea93d4">dimy</a>() - 1,</div>
<div class="line"><a id="l00155" name="l00155"></a><span class="lineno"> 155</span> <a class="code hl_enumvalue" href="structftxui_1_1Screen_1_1Cursor.html#a55b506070847a13554f8b879c1bfb37cacf46e529658ebc6532c204f3246929f4">Screen::Cursor::Shape::Hidden</a>,</div>
<div class="line"><a id="l00156" name="l00156"></a><span class="lineno"> 156</span> });</div>
<div class="line"><a id="l00157" name="l00157"></a><span class="lineno"> 157</span> }</div>
<div class="line"><a id="l00158" name="l00158"></a><span class="lineno"> 158</span> </div>
<div class="line"><a id="l00159" name="l00159"></a><span class="lineno"> 159</span> <span class="comment">// 步骤 4：绘制元素。</span></div>
<div class="line"><a id="l00160" name="l00160"></a><span class="lineno"> 160</span> screen.<a class="code hl_variable" href="group__screen.html#a92cacd07ba30909855f19edc01192ff0">stencil</a> = box;</div>
<div class="line"><a id="l00161" name="l00161"></a><span class="lineno"> 161</span> node-&gt;<a class="code hl_function" href="group__dom.html#a7e286fe14880614686ceeec84a9a9702">Render</a>(screen);</div>
<div class="line"><a id="l00162" name="l00162"></a><span class="lineno"> 162</span> </div>
<div class="line"><a id="l00163" name="l00163"></a><span class="lineno"> 163</span> <span class="comment">// 步骤 5：应用着色器</span></div>
<div class="line"><a id="l00164" name="l00164"></a><span class="lineno"> 164</span> screen.<a class="code hl_function" href="group__screen.html#a04d18c0cb0df3ed7a01ca5c3b8711ff7">ApplyShader</a>();</div>
<div class="line"><a id="l00165" name="l00165"></a><span class="lineno"> 165</span>}</div>
</div>
<div class="line"><a id="l00166" name="l00166"></a><span class="lineno"> 166</span> </div>
<div class="foldopen" id="foldopen00167" data-start="{" data-end="}">
<div class="line"><a id="l00167" name="l00167"></a><span class="lineno"><a class="line" href="namespaceftxui.html#a1a3d5804148186b3d4bcc07391ba5f30"> 167</a></span>std::string <a class="code hl_function" href="namespaceftxui.html#a1a3d5804148186b3d4bcc07391ba5f30">GetNodeSelectedContent</a>(<a class="code hl_class" href="group__screen.html#classftxui_1_1Screen">Screen</a>&amp; screen,</div>
<div class="line"><a id="l00168" name="l00168"></a><span class="lineno"> 168</span> <a class="code hl_class" href="group__dom.html#classftxui_1_1Node">Node</a>* node,</div>
<div class="line"><a id="l00169" name="l00169"></a><span class="lineno"> 169</span> <a class="code hl_class" href="group__dom.html#classftxui_1_1Selection">Selection</a>&amp; selection) {</div>
<div class="line"><a id="l00170" name="l00170"></a><span class="lineno"> 170</span> <a class="code hl_struct" href="group__screen.html#structftxui_1_1Box">Box</a> box;</div>
<div class="line"><a id="l00171" name="l00171"></a><span class="lineno"> 171</span> box.<a class="code hl_variable" href="group__screen.html#ae0951dcafafdc96ac1d8361c672d47e2">x_min</a> = 0;</div>
<div class="line"><a id="l00172" name="l00172"></a><span class="lineno"> 172</span> box.<a class="code hl_variable" href="group__screen.html#a7941ddc7e35fffb8864af1e922814401">y_min</a> = 0;</div>
<div class="line"><a id="l00173" name="l00173"></a><span class="lineno"> 173</span> box.<a class="code hl_variable" href="group__screen.html#a5f0bb6d8a3e66525c3e6264cb8288e43">x_max</a> = screen.<a class="code hl_function" href="group__screen.html#ae7a460c9dacd70ed81b1adfea46b492e">dimx</a>() - 1;</div>
<div class="line"><a id="l00174" name="l00174"></a><span class="lineno"> 174</span> box.<a class="code hl_variable" href="group__screen.html#ad033aea530fbbcf5bcd6cd98d882e3a5">y_max</a> = screen.<a class="code hl_function" href="group__screen.html#a0d283cfb1ec16b3fc13d344ebfea93d4">dimy</a>() - 1;</div>
<div class="line"><a id="l00175" name="l00175"></a><span class="lineno"> 175</span> </div>
<div class="line"><a id="l00176" name="l00176"></a><span class="lineno"> 176</span> <a class="code hl_struct" href="structftxui_1_1Node_1_1Status.html">Node::Status</a> status;</div>
<div class="line"><a id="l00177" name="l00177"></a><span class="lineno"> 177</span> node-&gt;<a class="code hl_function" href="group__dom.html#a5b71d891a102197f2856f53702425581">Check</a>(&amp;status);</div>
<div class="line"><a id="l00178" name="l00178"></a><span class="lineno"> 178</span> <span class="keyword">const</span> <span class="keywordtype">int</span> max_iterations = 20;</div>
<div class="line"><a id="l00179" name="l00179"></a><span class="lineno"> 179</span> <span class="keywordflow">while</span> (status.<a class="code hl_variable" href="structftxui_1_1Node_1_1Status.html#a0fffbfa5479a3b6d3ddf5ff13504a51c">need_iteration</a> &amp;&amp; status.<a class="code hl_variable" href="structftxui_1_1Node_1_1Status.html#aa6371382c6b4224e577e14ea610ab9a9">iteration</a> &lt; max_iterations) {</div>
<div class="line"><a id="l00180" name="l00180"></a><span class="lineno"> 180</span> <span class="comment">// 步骤 1：查找此元素所需的尺寸。</span></div>
<div class="line"><a id="l00181" name="l00181"></a><span class="lineno"> 181</span> node-&gt;<a class="code hl_function" href="group__dom.html#a40bd818c5de23bb2d208360d275ae59d">ComputeRequirement</a>();</div>
<div class="line"><a id="l00182" name="l00182"></a><span class="lineno"> 182</span> </div>
<div class="line"><a id="l00183" name="l00183"></a><span class="lineno"> 183</span> <span class="comment">// 步骤 2：为元素分配尺寸。</span></div>
<div class="line"><a id="l00184" name="l00184"></a><span class="lineno"> 184</span> node-&gt;<a class="code hl_function" href="group__dom.html#a2ed318aaadb07efc50e76fce1ccf9637">SetBox</a>(box);</div>
<div class="line"><a id="l00185" name="l00185"></a><span class="lineno"> 185</span> </div>
<div class="line"><a id="l00186" name="l00186"></a><span class="lineno"> 186</span> <span class="comment">// 检查元素是否需要布局算法的另一次迭代。</span></div>
<div class="line"><a id="l00187" name="l00187"></a><span class="lineno"> 187</span> status.<a class="code hl_variable" href="structftxui_1_1Node_1_1Status.html#a0fffbfa5479a3b6d3ddf5ff13504a51c">need_iteration</a> = <span class="keyword">false</span>;</div>
<div class="line"><a id="l00188" name="l00188"></a><span class="lineno"> 188</span> status.<a class="code hl_variable" href="structftxui_1_1Node_1_1Status.html#aa6371382c6b4224e577e14ea610ab9a9">iteration</a>++;</div>
<div class="line"><a id="l00189" name="l00189"></a><span class="lineno"> 189</span> node-&gt;<a class="code hl_function" href="group__dom.html#a5b71d891a102197f2856f53702425581">Check</a>(&amp;status);</div>
<div class="line"><a id="l00190" name="l00190"></a><span class="lineno"> 190</span> }</div>
<div class="line"><a id="l00191" name="l00191"></a><span class="lineno"> 191</span> </div>
<div class="line"><a id="l00192" name="l00192"></a><span class="lineno"> 192</span> <span class="comment">// 步骤 3：选区</span></div>
<div class="line"><a id="l00193" name="l00193"></a><span class="lineno"> 193</span> node-&gt;<a class="code hl_function" href="group__dom.html#a05352f5a353f1e86630a978060e77305">Select</a>(selection);</div>
<div class="line"><a id="l00194" name="l00194"></a><span class="lineno"> 194</span> </div>
<div class="line"><a id="l00195" name="l00195"></a><span class="lineno"> 195</span> <span class="comment">// 步骤 4：获取选定的内容。</span></div>
<div class="line"><a id="l00196" name="l00196"></a><span class="lineno"> 196</span> <span class="keywordflow">return</span> node-&gt;<a class="code hl_function" href="group__dom.html#a2c5cebe05557529299e649867b499680">GetSelectedContent</a>(selection);</div>
<div class="line"><a id="l00197" name="l00197"></a><span class="lineno"> 197</span>}</div>
</div>
<div class="line"><a id="l00198" name="l00198"></a><span class="lineno"> 198</span> </div>
<div class="line"><a id="l00199" name="l00199"></a><span class="lineno"> 199</span>} <span class="comment">// namespace ftxui</span></div>
<div class="ttc" id="abox_8hpp_html"><div class="ttname"><a href="box_8hpp.html">box.hpp</a></div></div>
<div class="ttc" id="agroup__dom_html_a03f5cc5dcad10fecb7a0b8203c86a13e"><div class="ttname"><a href="group__dom.html#a03f5cc5dcad10fecb7a0b8203c86a13e">ftxui::Selection::GetBox</a></div><div class="ttdeci">const Box &amp; GetBox() const</div><div class="ttdoc">获取选择框。</div><div class="ttdef"><b>定义</b> <a href="src_2ftxui_2dom_2selection_8cpp_source.html#l00066">src/ftxui/dom/selection.cpp:66</a></div></div>
<div class="ttc" id="agroup__dom_html_a05352f5a353f1e86630a978060e77305"><div class="ttname"><a href="group__dom.html#a05352f5a353f1e86630a978060e77305">ftxui::Node::Select</a></div><div class="ttdeci">virtual void Select(Selection &amp;selection)</div><div class="ttdoc">计算元素的选区。</div><div class="ttdef"><b>定义</b> <a href="#l00046">node.cpp:46</a></div></div>
<div class="ttc" id="agroup__dom_html_a0d313fac56abd7ebe58a17f1530b879e"><div class="ttname"><a href="group__dom.html#a0d313fac56abd7ebe58a17f1530b879e">ftxui::Node::Node</a></div><div class="ttdeci">Node()</div></div>
<div class="ttc" id="agroup__dom_html_a2aeb117dade3254694355ab90e9fc566"><div class="ttname"><a href="group__dom.html#a2aeb117dade3254694355ab90e9fc566">ftxui::Node::children_</a></div><div class="ttdeci">Elements children_</div><div class="ttdef"><b>定义</b> <a href="node_8hpp_source.html#l00073">node.hpp:73</a></div></div>
<div class="ttc" id="agroup__dom_html_a2c5cebe05557529299e649867b499680"><div class="ttname"><a href="group__dom.html#a2c5cebe05557529299e649867b499680">ftxui::Node::GetSelectedContent</a></div><div class="ttdeci">virtual std::string GetSelectedContent(Selection &amp;selection)</div><div class="ttdef"><b>定义</b> <a href="#l00072">node.cpp:72</a></div></div>
<div class="ttc" id="agroup__dom_html_a2ed318aaadb07efc50e76fce1ccf9637"><div class="ttname"><a href="group__dom.html#a2ed318aaadb07efc50e76fce1ccf9637">ftxui::Node::SetBox</a></div><div class="ttdeci">virtual void SetBox(Box box)</div><div class="ttdoc">为绘图元素分配位置和尺寸。</div><div class="ttdef"><b>定义</b> <a href="#l00041">node.cpp:41</a></div></div>
<div class="ttc" id="agroup__dom_html_a3530d99687053ce0d0006b9dee9a1ca7"><div class="ttname"><a href="group__dom.html#a3530d99687053ce0d0006b9dee9a1ca7">ftxui::Node::requirement_</a></div><div class="ttdeci">Requirement requirement_</div><div class="ttdef"><b>定义</b> <a href="node_8hpp_source.html#l00074">node.hpp:74</a></div></div>
<div class="ttc" id="agroup__dom_html_a39a263e8c8786dc62fcb4d734aad7fe6"><div class="ttname"><a href="group__dom.html#a39a263e8c8786dc62fcb4d734aad7fe6">ftxui::Node::requirement</a></div><div class="ttdeci">Requirement requirement()</div><div class="ttdef"><b>定义</b> <a href="node_8hpp_source.html#l00047">node.hpp:47</a></div></div>
<div class="ttc" id="agroup__dom_html_a40bd818c5de23bb2d208360d275ae59d"><div class="ttname"><a href="group__dom.html#a40bd818c5de23bb2d208360d275ae59d">ftxui::Node::ComputeRequirement</a></div><div class="ttdeci">virtual void ComputeRequirement()</div><div class="ttdoc">计算元素所需的空间。</div><div class="ttdef"><b>定义</b> <a href="#l00020">node.cpp:20</a></div></div>
<div class="ttc" id="agroup__dom_html_a5b71d891a102197f2856f53702425581"><div class="ttname"><a href="group__dom.html#a5b71d891a102197f2856f53702425581">ftxui::Node::Check</a></div><div class="ttdeci">virtual void Check(Status *status)</div><div class="ttdef"><b>定义</b> <a href="#l00065">node.cpp:65</a></div></div>
<div class="ttc" id="agroup__dom_html_a6fa6bf60f34f1e3efb0e59333428c9c8"><div class="ttname"><a href="group__dom.html#a6fa6bf60f34f1e3efb0e59333428c9c8">ftxui::Node::~Node</a></div><div class="ttdeci">virtual ~Node()</div></div>
<div class="ttc" id="agroup__dom_html_a7e286fe14880614686ceeec84a9a9702"><div class="ttname"><a href="group__dom.html#a7e286fe14880614686ceeec84a9a9702">ftxui::Node::Render</a></div><div class="ttdeci">virtual void Render(Screen &amp;screen)</div><div class="ttdoc">在 ftxui::Screen 上显示元素。</div><div class="ttdef"><b>定义</b> <a href="#l00059">node.cpp:59</a></div></div>
<div class="ttc" id="agroup__dom_html_a8e12342fc420701fbffd97025421575a"><div class="ttname"><a href="group__dom.html#a8e12342fc420701fbffd97025421575a">ftxui::Selection::IsEmpty</a></div><div class="ttdeci">bool IsEmpty() const</div><div class="ttdef"><b>定义</b> <a href="selection_8hpp_source.html#l00029">selection.hpp:29</a></div></div>
<div class="ttc" id="agroup__dom_html_aa4da656616dd87d4e82a4ee718db6b3c"><div class="ttname"><a href="group__dom.html#aa4da656616dd87d4e82a4ee718db6b3c">ftxui::Requirement::focused</a></div><div class="ttdeci">Focused focused</div><div class="ttdef"><b>定义</b> <a href="requirement_8hpp_source.html#l00050">requirement.hpp:50</a></div></div>
<div class="ttc" id="agroup__dom_html_aa7e7d30102945911407723a5cbcdfabc"><div class="ttname"><a href="group__dom.html#aa7e7d30102945911407723a5cbcdfabc">ftxui::Node::box_</a></div><div class="ttdeci">Box box_</div><div class="ttdef"><b>定义</b> <a href="node_8hpp_source.html#l00075">node.hpp:75</a></div></div>
<div class="ttc" id="agroup__dom_html_ab35030b64136afa183d474d11bd1f6dd"><div class="ttname"><a href="group__dom.html#ab35030b64136afa183d474d11bd1f6dd">ftxui::Node::Render</a></div><div class="ttdeci">friend void Render(Screen &amp;screen, Node *node, Selection &amp;selection)</div><div class="ttdef"><b>定义</b> <a href="#l00096">node.cpp:96</a></div></div>
<div class="ttc" id="agroup__dom_html_classftxui_1_1Node"><div class="ttname"><a href="group__dom.html#classftxui_1_1Node">ftxui::Node</a></div><div class="ttdoc">Node 是 DOM 树中所有元素的基类。</div><div class="ttdef"><b>定义</b> <a href="node_8hpp_source.html#l00033">node.hpp:33</a></div></div>
<div class="ttc" id="agroup__dom_html_classftxui_1_1Selection"><div class="ttname"><a href="group__dom.html#classftxui_1_1Selection">ftxui::Selection</a></div><div class="ttdoc">代表终端用户界面中的选择。</div><div class="ttdef"><b>定义</b> <a href="selection_8hpp_source.html#l00020">selection.hpp:20</a></div></div>
<div class="ttc" id="agroup__dom_html_gad4b8aa9392f56ba41e2b421e046a7d83"><div class="ttname"><a href="group__dom.html#gad4b8aa9392f56ba41e2b421e046a7d83">ftxui::Render</a></div><div class="ttdeci">void Render(Screen &amp;screen, const Element &amp;element)</div><div class="ttdoc">在 ftxui::Screen 上显示元素。</div><div class="ttdef"><b>定义</b> <a href="#l00084">node.cpp:84</a></div></div>
<div class="ttc" id="agroup__screen_html_a04d18c0cb0df3ed7a01ca5c3b8711ff7"><div class="ttname"><a href="group__screen.html#a04d18c0cb0df3ed7a01ca5c3b8711ff7">ftxui::Screen::ApplyShader</a></div><div class="ttdeci">void ApplyShader()</div><div class="ttdef"><b>定义</b> <a href="screen_8cpp_source.html#l00502">screen.cpp:502</a></div></div>
<div class="ttc" id="agroup__screen_html_a0d283cfb1ec16b3fc13d344ebfea93d4"><div class="ttname"><a href="group__screen.html#a0d283cfb1ec16b3fc13d344ebfea93d4">ftxui::Image::dimy</a></div><div class="ttdeci">int dimy() const</div><div class="ttdef"><b>定义</b> <a href="image_8hpp_source.html#l00035">image.hpp:35</a></div></div>
<div class="ttc" id="agroup__screen_html_a1aa24862a3d050b3aea2ade1300d51a7"><div class="ttname"><a href="group__screen.html#a1aa24862a3d050b3aea2ade1300d51a7">ftxui::Screen::SetCursor</a></div><div class="ttdeci">void SetCursor(Cursor cursor)</div><div class="ttdef"><b>定义</b> <a href="screen_8hpp_source.html#l00067">screen.hpp:67</a></div></div>
<div class="ttc" id="agroup__screen_html_a5f0bb6d8a3e66525c3e6264cb8288e43"><div class="ttname"><a href="group__screen.html#a5f0bb6d8a3e66525c3e6264cb8288e43">ftxui::Box::x_max</a></div><div class="ttdeci">int x_max</div><div class="ttdef"><b>定义</b> <a href="box_8hpp_source.html#l00017">box.hpp:17</a></div></div>
<div class="ttc" id="agroup__screen_html_a7941ddc7e35fffb8864af1e922814401"><div class="ttname"><a href="group__screen.html#a7941ddc7e35fffb8864af1e922814401">ftxui::Box::y_min</a></div><div class="ttdeci">int y_min</div><div class="ttdef"><b>定义</b> <a href="box_8hpp_source.html#l00018">box.hpp:18</a></div></div>
<div class="ttc" id="agroup__screen_html_a83d40499d9e8740c35dc2352c2ac84a8"><div class="ttname"><a href="group__screen.html#a83d40499d9e8740c35dc2352c2ac84a8">ftxui::Box::Intersection</a></div><div class="ttdeci">static auto Intersection(Box a, Box b) -&gt; Box</div><div class="ttdef"><b>定义</b> <a href="box_8cpp_source.html#l00011">box.cpp:11</a></div></div>
<div class="ttc" id="agroup__screen_html_a92cacd07ba30909855f19edc01192ff0"><div class="ttname"><a href="group__screen.html#a92cacd07ba30909855f19edc01192ff0">ftxui::Image::stencil</a></div><div class="ttdeci">Box stencil</div><div class="ttdef"><b>定义</b> <a href="image_8hpp_source.html#l00040">image.hpp:40</a></div></div>
<div class="ttc" id="agroup__screen_html_ad033aea530fbbcf5bcd6cd98d882e3a5"><div class="ttname"><a href="group__screen.html#ad033aea530fbbcf5bcd6cd98d882e3a5">ftxui::Box::y_max</a></div><div class="ttdeci">int y_max</div><div class="ttdef"><b>定义</b> <a href="box_8hpp_source.html#l00019">box.hpp:19</a></div></div>
<div class="ttc" id="agroup__screen_html_ae0951dcafafdc96ac1d8361c672d47e2"><div class="ttname"><a href="group__screen.html#ae0951dcafafdc96ac1d8361c672d47e2">ftxui::Box::x_min</a></div><div class="ttdeci">int x_min</div><div class="ttdef"><b>定义</b> <a href="box_8hpp_source.html#l00016">box.hpp:16</a></div></div>
<div class="ttc" id="agroup__screen_html_ae7a460c9dacd70ed81b1adfea46b492e"><div class="ttname"><a href="group__screen.html#ae7a460c9dacd70ed81b1adfea46b492e">ftxui::Image::dimx</a></div><div class="ttdeci">int dimx() const</div><div class="ttdef"><b>定义</b> <a href="image_8hpp_source.html#l00034">image.hpp:34</a></div></div>
<div class="ttc" id="agroup__screen_html_classftxui_1_1Screen"><div class="ttname"><a href="group__screen.html#classftxui_1_1Screen">ftxui::Screen</a></div><div class="ttdoc">像素的矩形网格。</div><div class="ttdef"><b>定义</b> <a href="screen_8hpp_source.html#l00026">screen.hpp:26</a></div></div>
<div class="ttc" id="agroup__screen_html_structftxui_1_1Box"><div class="ttname"><a href="group__screen.html#structftxui_1_1Box">ftxui::Box</a></div><div class="ttdoc">Box是一个表示2D空间中矩形区域的结构体。</div><div class="ttdef"><b>定义</b> <a href="box_8hpp_source.html#l00015">box.hpp:15</a></div></div>
<div class="ttc" id="anamespaceftxui_html"><div class="ttname"><a href="namespaceftxui.html">ftxui</a></div><div class="ttdoc">#include &quot;ftxui/component/component_base.hpp&quot; // 用于 ComponentBase</div><div class="ttdef"><b>定义</b> <a href="animation_8hpp_source.html#l00009">animation.hpp:9</a></div></div>
<div class="ttc" id="anamespaceftxui_html_a1a3d5804148186b3d4bcc07391ba5f30"><div class="ttname"><a href="namespaceftxui.html#a1a3d5804148186b3d4bcc07391ba5f30">ftxui::GetNodeSelectedContent</a></div><div class="ttdeci">std::string GetNodeSelectedContent(Screen &amp;screen, Node *node, Selection &amp;selection)</div><div class="ttdef"><b>定义</b> <a href="#l00167">node.cpp:167</a></div></div>
<div class="ttc" id="anamespaceftxui_html_a2bc31f2d685189e5c61d2293a1f51b4f"><div class="ttname"><a href="namespaceftxui.html#a2bc31f2d685189e5c61d2293a1f51b4f">ftxui::Element</a></div><div class="ttdeci">std::shared_ptr&lt; Node &gt; Element</div><div class="ttdef"><b>定义</b> <a href="elements_8hpp_source.html#l00022">elements.hpp:22</a></div></div>
<div class="ttc" id="anamespaceftxui_html_a5d4aa06ca6cc6a72e981bd5386f93f0a"><div class="ttname"><a href="namespaceftxui.html#a5d4aa06ca6cc6a72e981bd5386f93f0a">ftxui::Elements</a></div><div class="ttdeci">std::vector&lt; Element &gt; Elements</div><div class="ttdef"><b>定义</b> <a href="elements_8hpp_source.html#l00023">elements.hpp:23</a></div></div>
<div class="ttc" id="anode_8hpp_html"><div class="ttname"><a href="node_8hpp.html">node.hpp</a></div></div>
<div class="ttc" id="ascreen_8hpp_html"><div class="ttname"><a href="screen_8hpp.html">screen.hpp</a></div></div>
<div class="ttc" id="aselection_8hpp_html"><div class="ttname"><a href="selection_8hpp.html">selection.hpp</a></div></div>
<div class="ttc" id="astructftxui_1_1Node_1_1Status_html"><div class="ttname"><a href="structftxui_1_1Node_1_1Status.html">ftxui::Node::Status</a></div><div class="ttdef"><b>定义</b> <a href="node_8hpp_source.html#l00064">node.hpp:64</a></div></div>
<div class="ttc" id="astructftxui_1_1Node_1_1Status_html_a0fffbfa5479a3b6d3ddf5ff13504a51c"><div class="ttname"><a href="structftxui_1_1Node_1_1Status.html#a0fffbfa5479a3b6d3ddf5ff13504a51c">ftxui::Node::Status::need_iteration</a></div><div class="ttdeci">bool need_iteration</div><div class="ttdef"><b>定义</b> <a href="node_8hpp_source.html#l00066">node.hpp:66</a></div></div>
<div class="ttc" id="astructftxui_1_1Node_1_1Status_html_aa6371382c6b4224e577e14ea610ab9a9"><div class="ttname"><a href="structftxui_1_1Node_1_1Status.html#aa6371382c6b4224e577e14ea610ab9a9">ftxui::Node::Status::iteration</a></div><div class="ttdeci">int iteration</div><div class="ttdef"><b>定义</b> <a href="node_8hpp_source.html#l00065">node.hpp:65</a></div></div>
<div class="ttc" id="astructftxui_1_1Requirement_1_1Focused_html_a21f4c5c8f6862a204f795d4f0cb6d479"><div class="ttname"><a href="structftxui_1_1Requirement_1_1Focused.html#a21f4c5c8f6862a204f795d4f0cb6d479">ftxui::Requirement::Focused::cursor_shape</a></div><div class="ttdeci">Screen::Cursor::Shape cursor_shape</div><div class="ttdef"><b>定义</b> <a href="requirement_8hpp_source.html#l00033">requirement.hpp:33</a></div></div>
<div class="ttc" id="astructftxui_1_1Requirement_1_1Focused_html_a8740ba80e30dd75e71d09fa1dcf04f3d"><div class="ttname"><a href="structftxui_1_1Requirement_1_1Focused.html#a8740ba80e30dd75e71d09fa1dcf04f3d">ftxui::Requirement::Focused::enabled</a></div><div class="ttdeci">bool enabled</div><div class="ttdef"><b>定义</b> <a href="requirement_8hpp_source.html#l00030">requirement.hpp:30</a></div></div>
<div class="ttc" id="astructftxui_1_1Requirement_1_1Focused_html_ab88cd70dad2e152cea983610f2a16e68"><div class="ttname"><a href="structftxui_1_1Requirement_1_1Focused.html#ab88cd70dad2e152cea983610f2a16e68">ftxui::Requirement::Focused::node</a></div><div class="ttdeci">Node * node</div><div class="ttdef"><b>定义</b> <a href="requirement_8hpp_source.html#l00032">requirement.hpp:32</a></div></div>
<div class="ttc" id="astructftxui_1_1Screen_1_1Cursor_html"><div class="ttname"><a href="structftxui_1_1Screen_1_1Cursor.html">ftxui::Screen::Cursor</a></div><div class="ttdef"><b>定义</b> <a href="screen_8hpp_source.html#l00050">screen.hpp:50</a></div></div>
<div class="ttc" id="astructftxui_1_1Screen_1_1Cursor_html_a55b506070847a13554f8b879c1bfb37cacf46e529658ebc6532c204f3246929f4"><div class="ttname"><a href="structftxui_1_1Screen_1_1Cursor.html#a55b506070847a13554f8b879c1bfb37cacf46e529658ebc6532c204f3246929f4">ftxui::Screen::Cursor::Hidden</a></div><div class="ttdeci">@ Hidden</div><div class="ttdef"><b>定义</b> <a href="screen_8hpp_source.html#l00055">screen.hpp:55</a></div></div>
</div><!-- fragment --></div><!-- contents -->
</div><!-- doc-content -->
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<!-- start footer part -->
<div id="nav-path" class="navpath"><!-- id is needed for treeview function! -->
</div>
<script>
document.addEventListener('DOMContentLoaded', function() {
const projectNumber = document.getElementById('projectname');
if (!projectNumber) {
console.warn('Doxygen element with ID "projectnumber" not found. Cannot add version switcher.');
return;
}
const langs = ["en", "es", "fr", "ja", "zh-CH", "zh-TW"];
const lang_paths = {"en": "../index.html", "es": "../es/index.html", "fr": "../fr/index.html", "ja": "../ja/index.html", "zh-CH": "index.html", "zh-TW": "../zh-TW/index.html"};
const lang_display = {"en": "English", "es": "Espa\u00f1ol", "fr": "Fran\u00e7ais", "ja": "\u65e5\u672c\u8a9e", "zh-CH": "\u4e2d\u6587 (\u7b80\u4f53)", "zh-TW": "\u4e2d\u6587 (\u7e41\u9ad4)"};
const versions = ["main"];
const version_paths = {"main": "index.html"};
const currentLang = "zh-CH";
const currentVersion = "main";
// Helper function to create a styled select element
const createSelect = (options, current, paths, label, displayMap = null) => {
const select = document.createElement('select');
select.title = label;
select.onchange = function() {
const selectedValue = this.value;
if (selectedValue in paths) {
window.location.href = paths[selectedValue];
}
};
// Sort versions: 'main' first, then others numerically descending.
options.sort((a, b) => {
if (a === 'main') return -1;
if (b === 'main') return 1;
return b.localeCompare(a, undefined, { numeric: true, sensitivity: 'base' });
});
options.forEach(v => {
const option = document.createElement('option');
option.value = v;
// Use the displayMap if provided, otherwise default to the value (v)
option.textContent = displayMap ? displayMap[v] : v;
if (v === current) {
option.selected = true;
}
select.appendChild(option);
});
// Apply some styling to make it look good.
Object.assign(select.style, {
backgroundColor: 'rgba(0, 0, 0, 0.8)',
color: 'white',
border: '1px solid rgba(255, 255, 255, 0.2)',
padding: '5px',
borderRadius: '5px',
fontSize: '14px',
fontFamily: 'inherit',
margin: '0 5px 0 0',
cursor: 'pointer'
});
return select;
};
// 1. Create Language Switcher, passing the language display names map
const langSelect = createSelect(langs, currentLang, lang_paths, 'Select Language', lang_display);
// 2. Create Version Switcher
const versionSelect = createSelect(versions, currentVersion, version_paths, 'Select Version');
// 3. Create FTXUI title.
const ftxuiTitle = document.createElement('span');
ftxuiTitle.textContent = 'FTXUI: ';
Object.assign(ftxuiTitle.style, {
color: 'white',
fontSize: '20px',
fontWeight: 'bold',
marginRight: '10px'
});
// 3. Create a container to hold both selectors
const container = document.createElement('div');
container.id = 'version-lang-switchers';
Object.assign(container.style, {
display: 'flex',
alignItems: 'center',
justifyContent: 'flex-end',
width: 'auto'
});
container.appendChild(ftxuiTitle);
container.appendChild(langSelect);
container.appendChild(versionSelect);
Object.assign(container.style, {
backgroundColor: 'rgba(0, 0, 0, 0.5)',
padding: '5px 10px',
borderRadius: '8px'
});
// Replace the Doxygen project number element with our container.
projectNumber.replaceWith(container);
// Clean up the original Doxygen project number text if it still exists nearby
const parent = container.parentElement;
if (parent) {
const textNode = Array.from(parent.childNodes).find(n => n.nodeType === 3 && n.textContent.trim() !== '');
if (textNode) {
textNode.remove();
}
}
});
</script>
</body>
</html>
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