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<a href="canvas__animated_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 2021 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 LICENSED file.</span></div>
<div class="line"><a id="l00004" name="l00004"></a><span class="lineno"> 4</span><span class="preprocessor">#include &lt;cmath&gt;</span> <span class="comment">// for sin, cos</span></div>
<div class="line"><a id="l00005" name="l00005"></a><span class="lineno"> 5</span><span class="preprocessor">#include &lt;<a class="code" href="elements_8hpp.html">ftxui/dom/elements.hpp</a>&gt;</span> <span class="comment">// for canvas, Element, separator, hbox, operator|, border</span></div>
<div class="line"><a id="l00006" name="l00006"></a><span class="lineno"> 6</span><span class="preprocessor">#include &lt;<a class="code" href="screen_8hpp.html">ftxui/screen/screen.hpp</a>&gt;</span> <span class="comment">// for Pixel</span></div>
<div class="line"><a id="l00007" name="l00007"></a><span class="lineno"> 7</span><span class="preprocessor">#include &lt;memory&gt;</span> <span class="comment">// for allocator, shared_ptr, __shared_ptr_access</span></div>
<div class="line"><a id="l00008" name="l00008"></a><span class="lineno"> 8</span><span class="preprocessor">#include &lt;string&gt;</span> <span class="comment">// for string, basic_string</span></div>
<div class="line"><a id="l00009" name="l00009"></a><span class="lineno"> 9</span><span class="preprocessor">#include &lt;utility&gt;</span> <span class="comment">// for move</span></div>
<div class="line"><a id="l00010" name="l00010"></a><span class="lineno"> 10</span><span class="preprocessor">#include &lt;vector&gt;</span> <span class="comment">// for vector, __alloc_traits&lt;&gt;::value_type</span></div>
<div class="line"><a id="l00011" name="l00011"></a><span class="lineno"> 11</span> </div>
<div class="line"><a id="l00012" name="l00012"></a><span class="lineno"> 12</span><span class="preprocessor">#include &quot;<a class="code" href="component_8hpp.html">ftxui/component/component.hpp</a>&quot;</span> <span class="comment">// for Renderer, CatchEvent, Horizontal, Menu, Tab</span></div>
<div class="line"><a id="l00013" name="l00013"></a><span class="lineno"> 13</span><span class="preprocessor">#include &quot;<a class="code" href="component__base_8hpp.html">ftxui/component/component_base.hpp</a>&quot;</span> <span class="comment">// for ComponentBase</span></div>
<div class="line"><a id="l00014" name="l00014"></a><span class="lineno"> 14</span><span class="preprocessor">#include &quot;<a class="code" href="event_8hpp.html">ftxui/component/event.hpp</a>&quot;</span> <span class="comment">// for Event</span></div>
<div class="line"><a id="l00015" name="l00015"></a><span class="lineno"> 15</span><span class="preprocessor">#include &quot;<a class="code" href="mouse_8hpp.html">ftxui/component/mouse.hpp</a>&quot;</span> <span class="comment">// for Mouse</span></div>
<div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</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</span></div>
<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span><span class="preprocessor">#include &quot;<a class="code" href="canvas_8hpp.html">ftxui/dom/canvas.hpp</a>&quot;</span> <span class="comment">// for Canvas</span></div>
<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span><span class="preprocessor">#include &quot;<a class="code" href="color_8hpp.html">ftxui/screen/color.hpp</a>&quot;</span> <span class="comment">// for Color, Color::Red, Color::Blue, Color::Green, ftxui</span></div>
<div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</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="canvas__animated_8cpp.html#ae66f6b31b5ad750f1fe042a706a4e3d4"> 20</a></span><span class="keywordtype">int</span> <a class="code hl_function" href="canvas__animated_8cpp.html#ae66f6b31b5ad750f1fe042a706a4e3d4">main</a>() {</div>
<div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span> <span class="keyword">using namespace </span><a class="code hl_namespace" href="namespaceftxui.html">ftxui</a>;</div>
<div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span> </div>
<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span> <span class="keywordtype">int</span> mouse_x = 0;</div>
<div class="line"><a id="l00024" name="l00024"></a><span class="lineno"> 24</span> <span class="keywordtype">int</span> mouse_y = 0;</div>
<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span> </div>
<div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span> <span class="comment">// A triangle following the mouse, using braille characters.</span></div>
<div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span> <span class="keyword">auto</span> renderer_line_braille = Renderer([&amp;] {</div>
<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span> <span class="keyword">auto</span> c = <a class="code hl_struct" href="group__dom.html#structftxui_1_1Canvas">Canvas</a>(100, 100);</div>
<div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span> c.DrawText(0, 0, <span class="stringliteral">&quot;Several lines (braille)&quot;</span>);</div>
<div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span> c.DrawPointLine(mouse_x, mouse_y, 80, 10, Color::Red);</div>
<div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span> c.DrawPointLine(80, 10, 80, 40, Color::Blue);</div>
<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span> c.DrawPointLine(80, 40, mouse_x, mouse_y, Color::Green);</div>
<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span> <span class="keywordflow">return</span> canvas(std::move(c));</div>
<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span> });</div>
<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span> </div>
<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span> <span class="comment">// A triangle following the mouse, using block characters.</span></div>
<div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span> <span class="keyword">auto</span> renderer_line_block = Renderer([&amp;] {</div>
<div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span> <span class="keyword">auto</span> c = <a class="code hl_struct" href="group__dom.html#structftxui_1_1Canvas">Canvas</a>(100, 100);</div>
<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span> c.DrawText(0, 0, <span class="stringliteral">&quot;Several lines (block)&quot;</span>);</div>
<div class="line"><a id="l00040" name="l00040"></a><span class="lineno"> 40</span> c.DrawBlockLine(mouse_x, mouse_y, 80, 10, Color::Red);</div>
<div class="line"><a id="l00041" name="l00041"></a><span class="lineno"> 41</span> c.DrawBlockLine(80, 10, 80, 40, Color::Blue);</div>
<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span> c.DrawBlockLine(80, 40, mouse_x, mouse_y, Color::Green);</div>
<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span> <span class="keywordflow">return</span> canvas(std::move(c));</div>
<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span> });</div>
<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span> </div>
<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span> <span class="comment">// A circle following the mouse, using braille characters.</span></div>
<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span> <span class="keyword">auto</span> renderer_circle_braille = Renderer([&amp;] {</div>
<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span> <span class="keyword">auto</span> c = <a class="code hl_struct" href="group__dom.html#structftxui_1_1Canvas">Canvas</a>(100, 100);</div>
<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"> 49</span> c.DrawText(0, 0, <span class="stringliteral">&quot;A circle (braille)&quot;</span>);</div>
<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span> c.DrawPointCircle(mouse_x, mouse_y, 30);</div>
<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span> <span class="keywordflow">return</span> canvas(std::move(c));</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 class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span> <span class="comment">// A circle following the mouse, using block characters.</span></div>
<div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span> <span class="keyword">auto</span> renderer_circle_block = Renderer([&amp;] {</div>
<div class="line"><a id="l00056" name="l00056"></a><span class="lineno"> 56</span> <span class="keyword">auto</span> c = <a class="code hl_struct" href="group__dom.html#structftxui_1_1Canvas">Canvas</a>(100, 100);</div>
<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span> c.DrawText(0, 0, <span class="stringliteral">&quot;A circle (block)&quot;</span>);</div>
<div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span> c.DrawBlockCircle(mouse_x, mouse_y, 30);</div>
<div class="line"><a id="l00059" name="l00059"></a><span class="lineno"> 59</span> <span class="keywordflow">return</span> canvas(std::move(c));</div>
<div class="line"><a id="l00060" name="l00060"></a><span class="lineno"> 60</span> });</div>
<div class="line"><a id="l00061" name="l00061"></a><span class="lineno"> 61</span> </div>
<div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span> <span class="comment">// A filled circle following the mouse, using braille characters.</span></div>
<div class="line"><a id="l00063" name="l00063"></a><span class="lineno"> 63</span> <span class="keyword">auto</span> renderer_circle_filled_braille = Renderer([&amp;] {</div>
<div class="line"><a id="l00064" name="l00064"></a><span class="lineno"> 64</span> <span class="keyword">auto</span> c = <a class="code hl_struct" href="group__dom.html#structftxui_1_1Canvas">Canvas</a>(100, 100);</div>
<div class="line"><a id="l00065" name="l00065"></a><span class="lineno"> 65</span> c.DrawText(0, 0, <span class="stringliteral">&quot;A circle filled (braille)&quot;</span>);</div>
<div class="line"><a id="l00066" name="l00066"></a><span class="lineno"> 66</span> c.DrawPointCircleFilled(mouse_x, mouse_y, 30);</div>
<div class="line"><a id="l00067" name="l00067"></a><span class="lineno"> 67</span> <span class="keywordflow">return</span> canvas(std::move(c));</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> </div>
<div class="line"><a id="l00070" name="l00070"></a><span class="lineno"> 70</span> <span class="comment">// A filled circle following the mouse, using block characters.</span></div>
<div class="line"><a id="l00071" name="l00071"></a><span class="lineno"> 71</span> <span class="keyword">auto</span> renderer_circle_filled_block = Renderer([&amp;] {</div>
<div class="line"><a id="l00072" name="l00072"></a><span class="lineno"> 72</span> <span class="keyword">auto</span> c = <a class="code hl_struct" href="group__dom.html#structftxui_1_1Canvas">Canvas</a>(100, 100);</div>
<div class="line"><a id="l00073" name="l00073"></a><span class="lineno"> 73</span> c.DrawText(0, 0, <span class="stringliteral">&quot;A circle filled (block)&quot;</span>);</div>
<div class="line"><a id="l00074" name="l00074"></a><span class="lineno"> 74</span> c.DrawBlockCircleFilled(mouse_x, mouse_y, 30);</div>
<div class="line"><a id="l00075" name="l00075"></a><span class="lineno"> 75</span> <span class="keywordflow">return</span> canvas(std::move(c));</div>
<div class="line"><a id="l00076" name="l00076"></a><span class="lineno"> 76</span> });</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> <span class="comment">// An ellipse following the mouse, using braille characters.</span></div>
<div class="line"><a id="l00079" name="l00079"></a><span class="lineno"> 79</span> <span class="keyword">auto</span> renderer_ellipse_braille = Renderer([&amp;] {</div>
<div class="line"><a id="l00080" name="l00080"></a><span class="lineno"> 80</span> <span class="keyword">auto</span> c = <a class="code hl_struct" href="group__dom.html#structftxui_1_1Canvas">Canvas</a>(100, 100);</div>
<div class="line"><a id="l00081" name="l00081"></a><span class="lineno"> 81</span> c.DrawText(0, 0, <span class="stringliteral">&quot;An ellipse (braille)&quot;</span>);</div>
<div class="line"><a id="l00082" name="l00082"></a><span class="lineno"> 82</span> c.DrawPointEllipse(mouse_x / 2, mouse_y / 2, mouse_x / 2, mouse_y / 2);</div>
<div class="line"><a id="l00083" name="l00083"></a><span class="lineno"> 83</span> <span class="keywordflow">return</span> canvas(std::move(c));</div>
<div class="line"><a id="l00084" name="l00084"></a><span class="lineno"> 84</span> });</div>
<div class="line"><a id="l00085" name="l00085"></a><span class="lineno"> 85</span> </div>
<div class="line"><a id="l00086" name="l00086"></a><span class="lineno"> 86</span> <span class="comment">// An ellipse following the mouse, using block characters.</span></div>
<div class="line"><a id="l00087" name="l00087"></a><span class="lineno"> 87</span> <span class="keyword">auto</span> renderer_ellipse_block = Renderer([&amp;] {</div>
<div class="line"><a id="l00088" name="l00088"></a><span class="lineno"> 88</span> <span class="keyword">auto</span> c = <a class="code hl_struct" href="group__dom.html#structftxui_1_1Canvas">Canvas</a>(100, 100);</div>
<div class="line"><a id="l00089" name="l00089"></a><span class="lineno"> 89</span> c.DrawText(0, 0, <span class="stringliteral">&quot;An ellipse (block)&quot;</span>);</div>
<div class="line"><a id="l00090" name="l00090"></a><span class="lineno"> 90</span> c.DrawBlockEllipse(mouse_x / 2, mouse_y / 2, mouse_x / 2, mouse_y / 2);</div>
<div class="line"><a id="l00091" name="l00091"></a><span class="lineno"> 91</span> <span class="keywordflow">return</span> canvas(std::move(c));</div>
<div class="line"><a id="l00092" name="l00092"></a><span class="lineno"> 92</span> });</div>
<div class="line"><a id="l00093" name="l00093"></a><span class="lineno"> 93</span> </div>
<div class="line"><a id="l00094" name="l00094"></a><span class="lineno"> 94</span> <span class="comment">// An ellipse following the mouse filled, using braille characters.</span></div>
<div class="line"><a id="l00095" name="l00095"></a><span class="lineno"> 95</span> <span class="keyword">auto</span> renderer_ellipse_filled_braille = Renderer([&amp;] {</div>
<div class="line"><a id="l00096" name="l00096"></a><span class="lineno"> 96</span> <span class="keyword">auto</span> c = <a class="code hl_struct" href="group__dom.html#structftxui_1_1Canvas">Canvas</a>(100, 100);</div>
<div class="line"><a id="l00097" name="l00097"></a><span class="lineno"> 97</span> c.DrawText(0, 0, <span class="stringliteral">&quot;A filled ellipse (braille)&quot;</span>);</div>
<div class="line"><a id="l00098" name="l00098"></a><span class="lineno"> 98</span> c.DrawPointEllipseFilled(mouse_x / 2, mouse_y / 2, mouse_x / 2,</div>
<div class="line"><a id="l00099" name="l00099"></a><span class="lineno"> 99</span> mouse_y / 2);</div>
<div class="line"><a id="l00100" name="l00100"></a><span class="lineno"> 100</span> <span class="keywordflow">return</span> canvas(std::move(c));</div>
<div class="line"><a id="l00101" name="l00101"></a><span class="lineno"> 101</span> });</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> <span class="comment">// An ellipse following the mouse filled, using block characters.</span></div>
<div class="line"><a id="l00104" name="l00104"></a><span class="lineno"> 104</span> <span class="keyword">auto</span> renderer_ellipse_filled_block = Renderer([&amp;] {</div>
<div class="line"><a id="l00105" name="l00105"></a><span class="lineno"> 105</span> <span class="keyword">auto</span> c = <a class="code hl_struct" href="group__dom.html#structftxui_1_1Canvas">Canvas</a>(100, 100);</div>
<div class="line"><a id="l00106" name="l00106"></a><span class="lineno"> 106</span> c.DrawText(0, 0, <span class="stringliteral">&quot;A filled ellipse (block)&quot;</span>);</div>
<div class="line"><a id="l00107" name="l00107"></a><span class="lineno"> 107</span> c.DrawBlockEllipseFilled(mouse_x / 2, mouse_y / 2, mouse_x / 2,</div>
<div class="line"><a id="l00108" name="l00108"></a><span class="lineno"> 108</span> mouse_y / 2);</div>
<div class="line"><a id="l00109" name="l00109"></a><span class="lineno"> 109</span> c.DrawBlockEllipse(mouse_x / 2, mouse_y / 2, mouse_x / 2, mouse_y / 2);</div>
<div class="line"><a id="l00110" name="l00110"></a><span class="lineno"> 110</span> <span class="keywordflow">return</span> canvas(std::move(c));</div>
<div class="line"><a id="l00111" name="l00111"></a><span class="lineno"> 111</span> });</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">// A text following the mouse</span></div>
<div class="line"><a id="l00114" name="l00114"></a><span class="lineno"> 114</span> <span class="keyword">auto</span> renderer_text = Renderer([&amp;] {</div>
<div class="line"><a id="l00115" name="l00115"></a><span class="lineno"> 115</span> <span class="keyword">auto</span> c = <a class="code hl_struct" href="group__dom.html#structftxui_1_1Canvas">Canvas</a>(100, 100);</div>
<div class="line"><a id="l00116" name="l00116"></a><span class="lineno"> 116</span> c.DrawText(0, 0, <span class="stringliteral">&quot;A piece of text&quot;</span>);</div>
<div class="line"><a id="l00117" name="l00117"></a><span class="lineno"> 117</span> c.DrawText(mouse_x, mouse_y, <span class="stringliteral">&quot;This is a piece of text with effects&quot;</span>,</div>
<div class="line"><a id="l00118" name="l00118"></a><span class="lineno"> 118</span> [](<a class="code hl_struct" href="group__screen.html#structftxui_1_1Pixel">Pixel</a>&amp; p) {</div>
<div class="line"><a id="l00119" name="l00119"></a><span class="lineno"> 119</span> p.<a class="code hl_variable" href="group__screen.html#a2ce82adc1d02baf22df658b903dcb351">foreground_color</a> = Color::Red;</div>
<div class="line"><a id="l00120" name="l00120"></a><span class="lineno"> 120</span> p.<a class="code hl_variable" href="group__screen.html#a7c8849e8321ea248cd4991ea8ef198eb">underlined</a> = <span class="keyword">true</span>;</div>
<div class="line"><a id="l00121" name="l00121"></a><span class="lineno"> 121</span> p.<a class="code hl_variable" href="group__screen.html#a7a210a24d67146bd143c013d1da0f2dd">bold</a> = <span class="keyword">true</span>;</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> <span class="keywordflow">return</span> canvas(std::move(c));</div>
<div class="line"><a id="l00124" name="l00124"></a><span class="lineno"> 124</span> });</div>
<div class="line"><a id="l00125" name="l00125"></a><span class="lineno"> 125</span> </div>
<div class="line"><a id="l00126" name="l00126"></a><span class="lineno"> 126</span> <span class="keyword">auto</span> renderer_plot_1 = Renderer([&amp;] {</div>
<div class="line"><a id="l00127" name="l00127"></a><span class="lineno"> 127</span> <span class="keyword">auto</span> c = <a class="code hl_struct" href="group__dom.html#structftxui_1_1Canvas">Canvas</a>(100, 100);</div>
<div class="line"><a id="l00128" name="l00128"></a><span class="lineno"> 128</span> c.DrawText(0, 0, <span class="stringliteral">&quot;A graph&quot;</span>);</div>
<div class="line"><a id="l00129" name="l00129"></a><span class="lineno"> 129</span> </div>
<div class="line"><a id="l00130" name="l00130"></a><span class="lineno"> 130</span> std::vector&lt;int&gt; ys(100);</div>
<div class="line"><a id="l00131" name="l00131"></a><span class="lineno"> 131</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> x = 0; x &lt; 100; x++) {</div>
<div class="line"><a id="l00132" name="l00132"></a><span class="lineno"> 132</span> <span class="keywordtype">float</span> dx = float(x - mouse_x);</div>
<div class="line"><a id="l00133" name="l00133"></a><span class="lineno"> 133</span> <span class="keywordtype">float</span> dy = 50.f;</div>
<div class="line"><a id="l00134" name="l00134"></a><span class="lineno"> 134</span> ys[x] = int(dy + 20 * cos(dx * 0.14) + 10 * sin(dx * 0.42));</div>
<div class="line"><a id="l00135" name="l00135"></a><span class="lineno"> 135</span> }</div>
<div class="line"><a id="l00136" name="l00136"></a><span class="lineno"> 136</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> x = 1; x &lt; 99; x++)</div>
<div class="line"><a id="l00137" name="l00137"></a><span class="lineno"> 137</span> c.DrawPointLine(x, ys[x], x + 1, ys[x + 1]);</div>
<div class="line"><a id="l00138" name="l00138"></a><span class="lineno"> 138</span> </div>
<div class="line"><a id="l00139" name="l00139"></a><span class="lineno"> 139</span> <span class="keywordflow">return</span> canvas(std::move(c));</div>
<div class="line"><a id="l00140" name="l00140"></a><span class="lineno"> 140</span> });</div>
<div class="line"><a id="l00141" name="l00141"></a><span class="lineno"> 141</span> </div>
<div class="line"><a id="l00142" name="l00142"></a><span class="lineno"> 142</span> <span class="keyword">auto</span> renderer_plot_2 = Renderer([&amp;] {</div>
<div class="line"><a id="l00143" name="l00143"></a><span class="lineno"> 143</span> <span class="keyword">auto</span> c = <a class="code hl_struct" href="group__dom.html#structftxui_1_1Canvas">Canvas</a>(100, 100);</div>
<div class="line"><a id="l00144" name="l00144"></a><span class="lineno"> 144</span> c.DrawText(0, 0, <span class="stringliteral">&quot;A symmetrical graph filled&quot;</span>);</div>
<div class="line"><a id="l00145" name="l00145"></a><span class="lineno"> 145</span> std::vector&lt;int&gt; ys(100);</div>
<div class="line"><a id="l00146" name="l00146"></a><span class="lineno"> 146</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> x = 0; x &lt; 100; x++) {</div>
<div class="line"><a id="l00147" name="l00147"></a><span class="lineno"> 147</span> ys[x] = int(30 + <span class="comment">//</span></div>
<div class="line"><a id="l00148" name="l00148"></a><span class="lineno"> 148</span> 10 * cos(x * 0.2 - mouse_x * 0.05) + <span class="comment">//</span></div>
<div class="line"><a id="l00149" name="l00149"></a><span class="lineno"> 149</span> 5 * sin(x * 0.4) + <span class="comment">//</span></div>
<div class="line"><a id="l00150" name="l00150"></a><span class="lineno"> 150</span> 5 * sin(x * 0.3 - mouse_y * 0.05)); <span class="comment">//</span></div>
<div class="line"><a id="l00151" name="l00151"></a><span class="lineno"> 151</span> }</div>
<div class="line"><a id="l00152" name="l00152"></a><span class="lineno"> 152</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> x = 0; x &lt; 100; x++) {</div>
<div class="line"><a id="l00153" name="l00153"></a><span class="lineno"> 153</span> c.DrawPointLine(x, 50 + ys[x], x, 50 - ys[x], Color::Red);</div>
<div class="line"><a id="l00154" name="l00154"></a><span class="lineno"> 154</span> }</div>
<div class="line"><a id="l00155" name="l00155"></a><span class="lineno"> 155</span> </div>
<div class="line"><a id="l00156" name="l00156"></a><span class="lineno"> 156</span> <span class="keywordflow">return</span> canvas(std::move(c));</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="keyword">auto</span> renderer_plot_3 = Renderer([&amp;] {</div>
<div class="line"><a id="l00160" name="l00160"></a><span class="lineno"> 160</span> <span class="keyword">auto</span> c = <a class="code hl_struct" href="group__dom.html#structftxui_1_1Canvas">Canvas</a>(100, 100);</div>
<div class="line"><a id="l00161" name="l00161"></a><span class="lineno"> 161</span> c.DrawText(0, 0, <span class="stringliteral">&quot;A 2D gaussian plot&quot;</span>);</div>
<div class="line"><a id="l00162" name="l00162"></a><span class="lineno"> 162</span> <span class="keywordtype">int</span> size = 15;</div>
<div class="line"><a id="l00163" name="l00163"></a><span class="lineno"> 163</span> </div>
<div class="line"><a id="l00164" name="l00164"></a><span class="lineno"> 164</span> <span class="comment">// mouse_x = 5mx + 3*my</span></div>
<div class="line"><a id="l00165" name="l00165"></a><span class="lineno"> 165</span> <span class="comment">// mouse_y = 0mx + -5my + 90</span></div>
<div class="line"><a id="l00166" name="l00166"></a><span class="lineno"> 166</span> <span class="keywordtype">float</span> my = (mouse_y - 90) / -5.f;</div>
<div class="line"><a id="l00167" name="l00167"></a><span class="lineno"> 167</span> <span class="keywordtype">float</span> mx = (mouse_x - 3 * my) / 5.f;</div>
<div class="line"><a id="l00168" name="l00168"></a><span class="lineno"> 168</span> std::vector&lt;std::vector&lt;float&gt;&gt; ys(size, std::vector&lt;float&gt;(size));</div>
<div class="line"><a id="l00169" name="l00169"></a><span class="lineno"> 169</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> y = 0; y &lt; size; y++) {</div>
<div class="line"><a id="l00170" name="l00170"></a><span class="lineno"> 170</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> x = 0; x &lt; size; x++) {</div>
<div class="line"><a id="l00171" name="l00171"></a><span class="lineno"> 171</span> <span class="keywordtype">float</span> dx = x - mx;</div>
<div class="line"><a id="l00172" name="l00172"></a><span class="lineno"> 172</span> <span class="keywordtype">float</span> dy = y - my;</div>
<div class="line"><a id="l00173" name="l00173"></a><span class="lineno"> 173</span> ys[y][x] = -1.5 + 3.0 * std::exp(-0.2f * (dx * dx + dy * dy));</div>
<div class="line"><a id="l00174" name="l00174"></a><span class="lineno"> 174</span> }</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> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> y = 0; y &lt; size; y++) {</div>
<div class="line"><a id="l00177" name="l00177"></a><span class="lineno"> 177</span> <span class="keywordflow">for</span> (<span class="keywordtype">int</span> x = 0; x &lt; size; x++) {</div>
<div class="line"><a id="l00178" name="l00178"></a><span class="lineno"> 178</span> <span class="keywordflow">if</span> (x != 0) {</div>
<div class="line"><a id="l00179" name="l00179"></a><span class="lineno"> 179</span> c.DrawPointLine(</div>
<div class="line"><a id="l00180" name="l00180"></a><span class="lineno"> 180</span> 5 * (x - 1) + 3 * (y - 0), 90 - 5 * (y - 0) - 5 * ys[y][x - 1],</div>
<div class="line"><a id="l00181" name="l00181"></a><span class="lineno"> 181</span> 5 * (x - 0) + 3 * (y - 0), 90 - 5 * (y - 0) - 5 * ys[y][x]);</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="keywordflow">if</span> (y != 0) {</div>
<div class="line"><a id="l00184" name="l00184"></a><span class="lineno"> 184</span> c.DrawPointLine(</div>
<div class="line"><a id="l00185" name="l00185"></a><span class="lineno"> 185</span> 5 * (x - 0) + 3 * (y - 1), 90 - 5 * (y - 1) - 5 * ys[y - 1][x],</div>
<div class="line"><a id="l00186" name="l00186"></a><span class="lineno"> 186</span> 5 * (x - 0) + 3 * (y - 0), 90 - 5 * (y - 0) - 5 * ys[y][x]);</div>
<div class="line"><a id="l00187" name="l00187"></a><span class="lineno"> 187</span> }</div>
<div class="line"><a id="l00188" name="l00188"></a><span class="lineno"> 188</span> }</div>
<div class="line"><a id="l00189" name="l00189"></a><span class="lineno"> 189</span> }</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> <span class="keywordflow">return</span> canvas(std::move(c));</div>
<div class="line"><a id="l00192" name="l00192"></a><span class="lineno"> 192</span> });</div>
<div class="line"><a id="l00193" name="l00193"></a><span class="lineno"> 193</span> </div>
<div class="line"><a id="l00194" name="l00194"></a><span class="lineno"> 194</span> <span class="keywordtype">int</span> selected_tab = 12;</div>
<div class="line"><a id="l00195" name="l00195"></a><span class="lineno"> 195</span> <span class="keyword">auto</span> tab = Container::Tab(</div>
<div class="line"><a id="l00196" name="l00196"></a><span class="lineno"> 196</span> {</div>
<div class="line"><a id="l00197" name="l00197"></a><span class="lineno"> 197</span> renderer_line_braille,</div>
<div class="line"><a id="l00198" name="l00198"></a><span class="lineno"> 198</span> renderer_line_block,</div>
<div class="line"><a id="l00199" name="l00199"></a><span class="lineno"> 199</span> renderer_circle_braille,</div>
<div class="line"><a id="l00200" name="l00200"></a><span class="lineno"> 200</span> renderer_circle_block,</div>
<div class="line"><a id="l00201" name="l00201"></a><span class="lineno"> 201</span> renderer_circle_filled_braille,</div>
<div class="line"><a id="l00202" name="l00202"></a><span class="lineno"> 202</span> renderer_circle_filled_block,</div>
<div class="line"><a id="l00203" name="l00203"></a><span class="lineno"> 203</span> renderer_ellipse_braille,</div>
<div class="line"><a id="l00204" name="l00204"></a><span class="lineno"> 204</span> renderer_ellipse_block,</div>
<div class="line"><a id="l00205" name="l00205"></a><span class="lineno"> 205</span> renderer_ellipse_filled_braille,</div>
<div class="line"><a id="l00206" name="l00206"></a><span class="lineno"> 206</span> renderer_ellipse_filled_block,</div>
<div class="line"><a id="l00207" name="l00207"></a><span class="lineno"> 207</span> </div>
<div class="line"><a id="l00208" name="l00208"></a><span class="lineno"> 208</span> renderer_plot_1,</div>
<div class="line"><a id="l00209" name="l00209"></a><span class="lineno"> 209</span> renderer_plot_2,</div>
<div class="line"><a id="l00210" name="l00210"></a><span class="lineno"> 210</span> renderer_plot_3,</div>
<div class="line"><a id="l00211" name="l00211"></a><span class="lineno"> 211</span> </div>
<div class="line"><a id="l00212" name="l00212"></a><span class="lineno"> 212</span> renderer_text,</div>
<div class="line"><a id="l00213" name="l00213"></a><span class="lineno"> 213</span> },</div>
<div class="line"><a id="l00214" name="l00214"></a><span class="lineno"> 214</span> &amp;selected_tab);</div>
<div class="line"><a id="l00215" name="l00215"></a><span class="lineno"> 215</span> </div>
<div class="line"><a id="l00216" name="l00216"></a><span class="lineno"> 216</span> <span class="comment">// This capture the last mouse position.</span></div>
<div class="line"><a id="l00217" name="l00217"></a><span class="lineno"> 217</span> <span class="keyword">auto</span> tab_with_mouse = CatchEvent(tab, [&amp;](<a class="code hl_struct" href="group__component.html#structftxui_1_1Event">Event</a> e) {</div>
<div class="line"><a id="l00218" name="l00218"></a><span class="lineno"> 218</span> <span class="keywordflow">if</span> (e.<a class="code hl_function" href="group__component.html#a2c835925299d56941ffd2e2421f0fd13">is_mouse</a>()) {</div>
<div class="line"><a id="l00219" name="l00219"></a><span class="lineno"> 219</span> mouse_x = (e.<a class="code hl_variable" href="group__component.html#a761c3b7a78d8408dfbe76131209532d7">mouse</a>().x - 1) * 2;</div>
<div class="line"><a id="l00220" name="l00220"></a><span class="lineno"> 220</span> mouse_y = (e.<a class="code hl_variable" href="group__component.html#a761c3b7a78d8408dfbe76131209532d7">mouse</a>().y - 1) * 4;</div>
<div class="line"><a id="l00221" name="l00221"></a><span class="lineno"> 221</span> }</div>
<div class="line"><a id="l00222" name="l00222"></a><span class="lineno"> 222</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a id="l00223" name="l00223"></a><span class="lineno"> 223</span> });</div>
<div class="line"><a id="l00224" name="l00224"></a><span class="lineno"> 224</span> </div>
<div class="line"><a id="l00225" name="l00225"></a><span class="lineno"> 225</span> std::vector&lt;std::string&gt; tab_titles = {</div>
<div class="line"><a id="l00226" name="l00226"></a><span class="lineno"> 226</span> <span class="stringliteral">&quot;line (braille)&quot;</span>,</div>
<div class="line"><a id="l00227" name="l00227"></a><span class="lineno"> 227</span> <span class="stringliteral">&quot;line (block)&quot;</span>,</div>
<div class="line"><a id="l00228" name="l00228"></a><span class="lineno"> 228</span> <span class="stringliteral">&quot;circle (braille)&quot;</span>,</div>
<div class="line"><a id="l00229" name="l00229"></a><span class="lineno"> 229</span> <span class="stringliteral">&quot;circle (block)&quot;</span>,</div>
<div class="line"><a id="l00230" name="l00230"></a><span class="lineno"> 230</span> <span class="stringliteral">&quot;circle filled (braille)&quot;</span>,</div>
<div class="line"><a id="l00231" name="l00231"></a><span class="lineno"> 231</span> <span class="stringliteral">&quot;circle filled (block)&quot;</span>,</div>
<div class="line"><a id="l00232" name="l00232"></a><span class="lineno"> 232</span> <span class="stringliteral">&quot;ellipse (braille)&quot;</span>,</div>
<div class="line"><a id="l00233" name="l00233"></a><span class="lineno"> 233</span> <span class="stringliteral">&quot;ellipse (block)&quot;</span>,</div>
<div class="line"><a id="l00234" name="l00234"></a><span class="lineno"> 234</span> <span class="stringliteral">&quot;ellipse filled (braille)&quot;</span>,</div>
<div class="line"><a id="l00235" name="l00235"></a><span class="lineno"> 235</span> <span class="stringliteral">&quot;ellipse filled (block)&quot;</span>,</div>
<div class="line"><a id="l00236" name="l00236"></a><span class="lineno"> 236</span> <span class="stringliteral">&quot;plot_1 simple&quot;</span>,</div>
<div class="line"><a id="l00237" name="l00237"></a><span class="lineno"> 237</span> <span class="stringliteral">&quot;plot_2 filled&quot;</span>,</div>
<div class="line"><a id="l00238" name="l00238"></a><span class="lineno"> 238</span> <span class="stringliteral">&quot;plot_3 3D&quot;</span>,</div>
<div class="line"><a id="l00239" name="l00239"></a><span class="lineno"> 239</span> <span class="stringliteral">&quot;text&quot;</span>,</div>
<div class="line"><a id="l00240" name="l00240"></a><span class="lineno"> 240</span> };</div>
<div class="line"><a id="l00241" name="l00241"></a><span class="lineno"> 241</span> <span class="keyword">auto</span> tab_toggle = Menu(&amp;tab_titles, &amp;selected_tab);</div>
<div class="line"><a id="l00242" name="l00242"></a><span class="lineno"> 242</span> </div>
<div class="line"><a id="l00243" name="l00243"></a><span class="lineno"> 243</span> <span class="keyword">auto</span> component = Container::Horizontal({</div>
<div class="line"><a id="l00244" name="l00244"></a><span class="lineno"> 244</span> tab_with_mouse,</div>
<div class="line"><a id="l00245" name="l00245"></a><span class="lineno"> 245</span> tab_toggle,</div>
<div class="line"><a id="l00246" name="l00246"></a><span class="lineno"> 246</span> });</div>
<div class="line"><a id="l00247" name="l00247"></a><span class="lineno"> 247</span> </div>
<div class="line"><a id="l00248" name="l00248"></a><span class="lineno"> 248</span> <span class="comment">// Add some separator to decorate the whole component:</span></div>
<div class="line"><a id="l00249" name="l00249"></a><span class="lineno"> 249</span> <span class="keyword">auto</span> component_renderer = Renderer(component, [&amp;] {</div>
<div class="line"><a id="l00250" name="l00250"></a><span class="lineno"> 250</span> <span class="keywordflow">return</span> hbox({</div>
<div class="line"><a id="l00251" name="l00251"></a><span class="lineno"> 251</span> tab_with_mouse-&gt;Render(),</div>
<div class="line"><a id="l00252" name="l00252"></a><span class="lineno"> 252</span> separator(),</div>
<div class="line"><a id="l00253" name="l00253"></a><span class="lineno"> 253</span> tab_toggle-&gt;Render(),</div>
<div class="line"><a id="l00254" name="l00254"></a><span class="lineno"> 254</span> }) |</div>
<div class="line"><a id="l00255" name="l00255"></a><span class="lineno"> 255</span> border;</div>
<div class="line"><a id="l00256" name="l00256"></a><span class="lineno"> 256</span> });</div>
<div class="line"><a id="l00257" name="l00257"></a><span class="lineno"> 257</span> </div>
<div class="line"><a id="l00258" name="l00258"></a><span class="lineno"> 258</span> <span class="keyword">auto</span> screen = ScreenInteractive::FitComponent();</div>
<div class="line"><a id="l00259" name="l00259"></a><span class="lineno"> 259</span> screen.Loop(component_renderer);</div>
<div class="line"><a id="l00260" name="l00260"></a><span class="lineno"> 260</span> </div>
<div class="line"><a id="l00261" name="l00261"></a><span class="lineno"> 261</span> <span class="keywordflow">return</span> 0;</div>
<div class="line"><a id="l00262" name="l00262"></a><span class="lineno"> 262</span>}</div>
</div>
<div class="ttc" id="acanvas_8hpp_html"><div class="ttname"><a href="canvas_8hpp.html">canvas.hpp</a></div></div>
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<div class="ttc" id="agroup__component_html_a2c835925299d56941ffd2e2421f0fd13"><div class="ttname"><a href="group__component.html#a2c835925299d56941ffd2e2421f0fd13">ftxui::Event::is_mouse</a></div><div class="ttdeci">bool is_mouse() const</div><div class="ttdef"><b>Definition</b> <a href="event_8hpp_source.html#l00109">event.hpp:109</a></div></div>
<div class="ttc" id="agroup__component_html_a761c3b7a78d8408dfbe76131209532d7"><div class="ttname"><a href="group__component.html#a761c3b7a78d8408dfbe76131209532d7">ftxui::Event::mouse</a></div><div class="ttdeci">struct Mouse mouse</div><div class="ttdef"><b>Definition</b> <a href="event_8hpp_source.html#l00144">event.hpp:144</a></div></div>
<div class="ttc" id="agroup__component_html_structftxui_1_1Event"><div class="ttname"><a href="group__component.html#structftxui_1_1Event">ftxui::Event</a></div><div class="ttdoc">Represent an event. It can be key press event, a terminal resize, or more ...</div><div class="ttdef"><b>Definition</b> <a href="event_8hpp_source.html#l00029">event.hpp:29</a></div></div>
<div class="ttc" id="agroup__dom_html_structftxui_1_1Canvas"><div class="ttname"><a href="group__dom.html#structftxui_1_1Canvas">ftxui::Canvas</a></div><div class="ttdoc">Canvas is a drawable buffer associated with drawing operations.</div><div class="ttdef"><b>Definition</b> <a href="canvas_8hpp_source.html#l00038">canvas.hpp:38</a></div></div>
<div class="ttc" id="agroup__screen_html_a2ce82adc1d02baf22df658b903dcb351"><div class="ttname"><a href="group__screen.html#a2ce82adc1d02baf22df658b903dcb351">ftxui::Pixel::foreground_color</a></div><div class="ttdeci">Color foreground_color</div><div class="ttdef"><b>Definition</b> <a href="pixel_8hpp_source.html#l00049">pixel.hpp:49</a></div></div>
<div class="ttc" id="agroup__screen_html_a7a210a24d67146bd143c013d1da0f2dd"><div class="ttname"><a href="group__screen.html#a7a210a24d67146bd143c013d1da0f2dd">ftxui::Pixel::bold</a></div><div class="ttdeci">bool bold</div><div class="ttdef"><b>Definition</b> <a href="pixel_8hpp_source.html#l00029">pixel.hpp:29</a></div></div>
<div class="ttc" id="agroup__screen_html_a7c8849e8321ea248cd4991ea8ef198eb"><div class="ttname"><a href="group__screen.html#a7c8849e8321ea248cd4991ea8ef198eb">ftxui::Pixel::underlined</a></div><div class="ttdeci">bool underlined</div><div class="ttdef"><b>Definition</b> <a href="pixel_8hpp_source.html#l00033">pixel.hpp:33</a></div></div>
<div class="ttc" id="agroup__screen_html_structftxui_1_1Pixel"><div class="ttname"><a href="group__screen.html#structftxui_1_1Pixel">ftxui::Pixel</a></div><div class="ttdoc">A Unicode character and its associated style.</div><div class="ttdef"><b>Definition</b> <a href="pixel_8hpp_source.html#l00015">pixel.hpp:15</a></div></div>
<div class="ttc" id="amouse_8hpp_html"><div class="ttname"><a href="mouse_8hpp.html">mouse.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>
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