Files
entt/emitter_8hpp_source.html
2019-12-19 15:16:07 +01:00

317 lines
43 KiB
HTML

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "https://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
<meta http-equiv="X-UA-Compatible" content="IE=9"/>
<meta name="generator" content="Doxygen 1.8.16"/>
<meta name="viewport" content="width=device-width, initial-scale=1"/>
<title>EnTT: src/entt/signal/emitter.hpp Source File</title>
<link href="tabs.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="jquery.js"></script>
<script type="text/javascript" src="dynsections.js"></script>
<link href="search/search.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="search/searchdata.js"></script>
<script type="text/javascript" src="search/search.js"></script>
<link href="doxygen.css" rel="stylesheet" type="text/css" />
</head>
<body>
<div id="top"><!-- do not remove this div, it is closed by doxygen! -->
<div id="titlearea">
<table cellspacing="0" cellpadding="0">
<tbody>
<tr style="height: 56px;">
<td id="projectalign" style="padding-left: 0.5em;">
<div id="projectname">EnTT
&#160;<span id="projectnumber">3.2.2</span>
</div>
</td>
</tr>
</tbody>
</table>
</div>
<!-- end header part -->
<!-- Generated by Doxygen 1.8.16 -->
<script type="text/javascript">
/* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&amp;dn=gpl-2.0.txt GPL-v2 */
var searchBox = new SearchBox("searchBox", "search",false,'Search');
/* @license-end */
</script>
<script type="text/javascript" src="menudata.js"></script>
<script type="text/javascript" src="menu.js"></script>
<script type="text/javascript">
/* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&amp;dn=gpl-2.0.txt GPL-v2 */
$(function() {
initMenu('',true,false,'search.php','Search');
$(document).ready(function() { init_search(); });
});
/* @license-end */</script>
<div id="main-nav"></div>
<!-- window showing the filter options -->
<div id="MSearchSelectWindow"
onmouseover="return searchBox.OnSearchSelectShow()"
onmouseout="return searchBox.OnSearchSelectHide()"
onkeydown="return searchBox.OnSearchSelectKey(event)">
</div>
<!-- iframe showing the search results (closed by default) -->
<div id="MSearchResultsWindow">
<iframe src="javascript:void(0)" frameborder="0"
name="MSearchResults" id="MSearchResults">
</iframe>
</div>
<div id="nav-path" class="navpath">
<ul>
<li class="navelem"><a class="el" href="dir_68267d1309a1af8e8297ef4c3efbcdba.html">src</a></li><li class="navelem"><a class="el" href="dir_66e9674e8206a335795995fa32a03c91.html">entt</a></li><li class="navelem"><a class="el" href="dir_a53318306f6ac0f7fe657839abd543ab.html">signal</a></li> </ul>
</div>
</div><!-- top -->
<div class="header">
<div class="headertitle">
<div class="title">emitter.hpp</div> </div>
</div><!--header-->
<div class="contents">
<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span>&#160;<span class="preprocessor">#ifndef ENTT_SIGNAL_EMITTER_HPP</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span>&#160;<span class="preprocessor">#define ENTT_SIGNAL_EMITTER_HPP</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span>&#160; </div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span>&#160; </div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span>&#160;<span class="preprocessor">#include &lt;type_traits&gt;</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span>&#160;<span class="preprocessor">#include &lt;functional&gt;</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span>&#160;<span class="preprocessor">#include &lt;algorithm&gt;</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span>&#160;<span class="preprocessor">#include &lt;utility&gt;</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span>&#160;<span class="preprocessor">#include &lt;memory&gt;</span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span>&#160;<span class="preprocessor">#include &lt;vector&gt;</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span>&#160;<span class="preprocessor">#include &lt;list&gt;</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span>&#160;<span class="preprocessor">#include &quot;../config/config.h&quot;</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span>&#160;<span class="preprocessor">#include &quot;../core/family.hpp&quot;</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span>&#160;<span class="preprocessor">#include &quot;../core/type_traits.hpp&quot;</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span>&#160; </div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span>&#160; </div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span>&#160;<span class="keyword">namespace </span><a class="code" href="namespaceentt.html">entt</a> {</div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span>&#160; </div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span>&#160; </div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> Derived&gt;</div>
<div class="line"><a name="l00042"></a><span class="lineno"><a class="line" href="classentt_1_1emitter.html"> 42</a></span>&#160;<span class="keyword">class </span><a class="code" href="classentt_1_1emitter.html">emitter</a> {</div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>&#160; <span class="keyword">using</span> <a class="code" href="classentt_1_1family.html">handler_family</a> = <a class="code" href="classentt_1_1family.html">family&lt;struct internal_emitter_handler_family&gt;</a>;</div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>&#160; </div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>&#160; <span class="keyword">struct </span>base_handler {</div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>&#160; <span class="keyword">virtual</span> ~base_handler() = <span class="keywordflow">default</span>;</div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>&#160; <span class="keyword">virtual</span> <span class="keywordtype">bool</span> <a class="code" href="classentt_1_1emitter.html#a841edafebf32b85da11657578e887961">empty</a>() <span class="keyword">const</span> ENTT_NOEXCEPT = 0;</div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>&#160; <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classentt_1_1emitter.html#a09386e63b0871a304e295921c574318a">clear</a>() ENTT_NOEXCEPT = 0;</div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>&#160; };</div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>&#160; </div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>&#160; <span class="keyword">template</span>&lt;<span class="keyword">typename</span> Event&gt;</div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>&#160; <span class="keyword">struct </span>event_handler: base_handler {</div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>&#160; <span class="keyword">using</span> listener_type = std::function&lt;void(<span class="keyword">const</span> Event &amp;, Derived &amp;)&gt;;</div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>&#160; <span class="keyword">using</span> element_type = std::pair&lt;bool, listener_type&gt;;</div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>&#160; <span class="keyword">using</span> container_type = std::list&lt;element_type&gt;;</div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>&#160; <span class="keyword">using</span> connection_type = <span class="keyword">typename</span> container_type::iterator;</div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>&#160; </div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>&#160; <span class="keywordtype">bool</span> <a class="code" href="classentt_1_1emitter.html#a841edafebf32b85da11657578e887961">empty</a>() <span class="keyword">const</span> ENTT_NOEXCEPT <span class="keyword">override</span> {</div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>&#160; <span class="keyword">auto</span> pred = [](<span class="keyword">auto</span> &amp;&amp;element) { <span class="keywordflow">return</span> element.first; };</div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>&#160; </div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>&#160; <span class="keywordflow">return</span> std::all_of(once_list.cbegin(), once_list.cend(), pred) &amp;&amp;</div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>&#160; std::all_of(on_list.cbegin(), on_list.cend(), pred);</div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>&#160; }</div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>&#160; </div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>&#160; <span class="keywordtype">void</span> <a class="code" href="classentt_1_1emitter.html#a09386e63b0871a304e295921c574318a">clear</a>() ENTT_NOEXCEPT <span class="keyword">override</span> {</div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>&#160; <span class="keywordflow">if</span>(publishing) {</div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>&#160; <span class="keyword">auto</span> func = [](<span class="keyword">auto</span> &amp;&amp;element) { element.first = <span class="keyword">true</span>; };</div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>&#160; std::for_each(once_list.begin(), once_list.end(), func);</div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>&#160; std::for_each(on_list.begin(), on_list.end(), func);</div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>&#160; } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>&#160; once_list.clear();</div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>&#160; on_list.clear();</div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>&#160; }</div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>&#160; }</div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>&#160; </div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>&#160; connection_type <a class="code" href="classentt_1_1emitter.html#a79834d452b0600ebe0e70c54f4a21fd6">once</a>(listener_type <a class="code" href="classentt_1_1emitter.html#a460311b6b4adfabe69b9d964c8d0b579">listener</a>) {</div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>&#160; <span class="keywordflow">return</span> once_list.emplace(once_list.cend(), <span class="keyword">false</span>, std::move(<a class="code" href="classentt_1_1emitter.html#a460311b6b4adfabe69b9d964c8d0b579">listener</a>));</div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>&#160; }</div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>&#160; </div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>&#160; connection_type <a class="code" href="classentt_1_1emitter.html#a0b580005200bb810a4a3e94320efcd8a">on</a>(listener_type <a class="code" href="classentt_1_1emitter.html#a460311b6b4adfabe69b9d964c8d0b579">listener</a>) {</div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>&#160; <span class="keywordflow">return</span> on_list.emplace(on_list.cend(), <span class="keyword">false</span>, std::move(<a class="code" href="classentt_1_1emitter.html#a460311b6b4adfabe69b9d964c8d0b579">listener</a>));</div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>&#160; }</div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>&#160; </div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>&#160; <span class="keywordtype">void</span> <a class="code" href="classentt_1_1emitter.html#a14409e5061892c1342924b25f4ec2a0c">erase</a>(connection_type conn) ENTT_NOEXCEPT {</div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>&#160; conn-&gt;first = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>&#160; </div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>&#160; <span class="keywordflow">if</span>(!publishing) {</div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>&#160; <span class="keyword">auto</span> pred = [](<span class="keyword">auto</span> &amp;&amp;element) { <span class="keywordflow">return</span> element.first; };</div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>&#160; once_list.remove_if(pred);</div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>&#160; on_list.remove_if(pred);</div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>&#160; }</div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>&#160; }</div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>&#160; </div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>&#160; <span class="keywordtype">void</span> <a class="code" href="classentt_1_1emitter.html#a4ece275ff8736bcdcfb4103087801ea2">publish</a>(<span class="keyword">const</span> Event &amp;event, Derived &amp;ref) {</div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>&#160; container_type swap_list;</div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>&#160; once_list.swap(swap_list);</div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>&#160; </div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>&#160; <span class="keyword">auto</span> func = [&amp;event, &amp;ref](<span class="keyword">auto</span> &amp;&amp;element) {</div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>&#160; <span class="keywordflow">return</span> element.first ? void() : element.second(event, ref);</div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>&#160; };</div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>&#160; </div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>&#160; publishing = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>&#160; </div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>&#160; std::for_each(on_list.rbegin(), on_list.rend(), func);</div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>&#160; std::for_each(swap_list.rbegin(), swap_list.rend(), func);</div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>&#160; </div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>&#160; publishing = <span class="keyword">false</span>;</div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>&#160; </div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>&#160; on_list.remove_if([](<span class="keyword">auto</span> &amp;&amp;element) { <span class="keywordflow">return</span> element.first; });</div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>&#160; }</div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>&#160; </div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>&#160; <span class="keyword">private</span>:</div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>&#160; <span class="keywordtype">bool</span> publishing{<span class="keyword">false</span>};</div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>&#160; container_type once_list{};</div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>&#160; container_type on_list{};</div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>&#160; };</div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>&#160; </div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>&#160; <span class="keyword">struct </span>handler_data {</div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>&#160; std::unique_ptr&lt;base_handler&gt; handler;</div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>&#160; ENTT_ID_TYPE runtime_type;</div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>&#160; };</div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>&#160; </div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>&#160; <span class="keyword">template</span>&lt;<span class="keyword">typename</span> Event&gt;</div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>&#160; <span class="keyword">static</span> <span class="keyword">auto</span> type() ENTT_NOEXCEPT {</div>
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>&#160; <span class="keywordflow">if</span> constexpr(is_named_type_v&lt;Event&gt;) {</div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>&#160; <span class="keywordflow">return</span> named_type_traits_v&lt;Event&gt;;</div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>&#160; } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>&#160; <span class="keywordflow">return</span> handler_family::type&lt;std::decay_t&lt;Event&gt;&gt;;</div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>&#160; }</div>
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>&#160; }</div>
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>&#160; </div>
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>&#160; <span class="keyword">template</span>&lt;<span class="keyword">typename</span> Event&gt;</div>
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>&#160; event_handler&lt;Event&gt; * assure() <span class="keyword">const</span> ENTT_NOEXCEPT {</div>
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>&#160; <span class="keyword">const</span> <span class="keyword">auto</span> htype = type&lt;Event&gt;();</div>
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>&#160; handler_data *hdata = <span class="keyword">nullptr</span>;</div>
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>&#160; </div>
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>&#160; <span class="keywordflow">if</span> constexpr(is_named_type_v&lt;Event&gt;) {</div>
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>&#160; <span class="keyword">const</span> <span class="keyword">auto</span> it = std::find_if(handlers.begin(), handlers.end(), [htype](<span class="keyword">const</span> <span class="keyword">auto</span> &amp;candidate) {</div>
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>&#160; <span class="keywordflow">return</span> candidate.handler &amp;&amp; candidate.runtime_type == htype;</div>
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>&#160; });</div>
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>&#160; </div>
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>&#160; hdata = (it == handlers.cend() ? &amp;handlers.emplace_back() : &amp;(*it));</div>
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>&#160; } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>&#160; <span class="keywordflow">if</span>(!(htype &lt; handlers.size())) {</div>
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>&#160; handlers.resize(htype+1);</div>
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>&#160; }</div>
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>&#160; </div>
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>&#160; hdata = &amp;handlers[htype];</div>
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>&#160; </div>
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>&#160; <span class="keywordflow">if</span>(hdata-&gt;handler &amp;&amp; hdata-&gt;runtime_type != htype) {</div>
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>&#160; handlers.emplace_back();</div>
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>&#160; std::swap(handlers[htype], handlers.back());</div>
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>&#160; hdata = &amp;handlers[htype];</div>
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>&#160; }</div>
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>&#160; }</div>
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>&#160; </div>
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>&#160; <span class="keywordflow">if</span>(!hdata-&gt;handler) {</div>
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>&#160; hdata-&gt;handler = std::make_unique&lt;event_handler&lt;Event&gt;&gt;();</div>
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>&#160; hdata-&gt;runtime_type = htype;</div>
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>&#160; }</div>
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>&#160; </div>
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>&#160; <span class="keywordflow">return</span> <span class="keyword">static_cast&lt;</span>event_handler&lt;Event&gt; *<span class="keyword">&gt;</span>(hdata-&gt;handler.get());</div>
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>&#160; }</div>
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>&#160; </div>
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span>&#160;<span class="keyword">public</span>:</div>
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>&#160; <span class="keyword">template</span>&lt;<span class="keyword">typename</span> Event&gt;</div>
<div class="line"><a name="l00168"></a><span class="lineno"><a class="line" href="classentt_1_1emitter.html#a460311b6b4adfabe69b9d964c8d0b579"> 168</a></span>&#160; <span class="keyword">using</span> <a class="code" href="classentt_1_1emitter.html#a460311b6b4adfabe69b9d964c8d0b579">listener</a> = <span class="keyword">typename</span> event_handler&lt;Event&gt;::listener_type;</div>
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>&#160; </div>
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>&#160; <span class="keyword">template</span>&lt;<span class="keyword">typename</span> Event&gt;</div>
<div class="line"><a name="l00180"></a><span class="lineno"><a class="line" href="structentt_1_1emitter_1_1connection.html"> 180</a></span>&#160; <span class="keyword">struct </span><a class="code" href="structentt_1_1emitter_1_1connection.html">connection</a>: <span class="keyword">private</span> event_handler&lt;Event&gt;::connection_type {</div>
<div class="line"><a name="l00182"></a><span class="lineno"><a class="line" href="structentt_1_1emitter_1_1connection.html#a0f3bb10ad57dc0e06298fc9ba38a7bd9"> 182</a></span>&#160; <span class="keyword">friend</span> <span class="keyword">class </span><a class="code" href="classentt_1_1emitter.html">emitter</a>;</div>
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>&#160; </div>
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>&#160; <a class="code" href="structentt_1_1emitter_1_1connection.html#a846b5190231aee4dd2340ab910adea40">connection</a>() ENTT_NOEXCEPT = default;</div>
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>&#160; </div>
<div class="line"><a name="l00191"></a><span class="lineno"><a class="line" href="structentt_1_1emitter_1_1connection.html#a6497a7521b75836697bf4fb97de246d7"> 191</a></span>&#160; <a class="code" href="structentt_1_1emitter_1_1connection.html">connection</a>(typename event_handler&lt;Event&gt;::connection_type conn)</div>
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>&#160; : event_handler&lt;Event&gt;::connection_type{std::move(conn)}</div>
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span>&#160; {}</div>
<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>&#160; };</div>
<div class="line"><a name="l00195"></a><span class="lineno"> 195</span>&#160; </div>
<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>&#160; <a class="code" href="classentt_1_1emitter.html#a9c2e7d7eb8accd1d71e8aacce404e4d9">emitter</a>() ENTT_NOEXCEPT = default;</div>
<div class="line"><a name="l00198"></a><span class="lineno"> 198</span>&#160; </div>
<div class="line"><a name="l00200"></a><span class="lineno"><a class="line" href="classentt_1_1emitter.html#a77d175ad8e8060c3628b3fb544cba15f"> 200</a></span>&#160; virtual ~<a class="code" href="classentt_1_1emitter.html">emitter</a>() ENTT_NOEXCEPT {</div>
<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>&#160; static_assert(std::is_base_of_v&lt;<a class="code" href="classentt_1_1emitter.html">emitter&lt;Derived&gt;</a>, Derived&gt;);</div>
<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>&#160; }</div>
<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>&#160; </div>
<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>&#160; <a class="code" href="classentt_1_1emitter.html#a9c2e7d7eb8accd1d71e8aacce404e4d9">emitter</a>(<a class="code" href="classentt_1_1emitter.html">emitter</a> &amp;&amp;) = <span class="keywordflow">default</span>;</div>
<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>&#160; </div>
<div class="line"><a name="l00208"></a><span class="lineno"> 208</span>&#160; <a class="code" href="classentt_1_1emitter.html">emitter</a> &amp; <a class="code" href="classentt_1_1emitter.html#ab270d2c6d986621a781467e29e64629c">operator=</a>(<a class="code" href="classentt_1_1emitter.html">emitter</a> &amp;&amp;) = <span class="keywordflow">default</span>;</div>
<div class="line"><a name="l00209"></a><span class="lineno"> 209</span>&#160; </div>
<div class="line"><a name="l00221"></a><span class="lineno"> 221</span>&#160; <span class="keyword">template</span>&lt;<span class="keyword">typename</span> Event, <span class="keyword">typename</span>... Args&gt;</div>
<div class="line"><a name="l00222"></a><span class="lineno"><a class="line" href="classentt_1_1emitter.html#a4ece275ff8736bcdcfb4103087801ea2"> 222</a></span>&#160; <span class="keywordtype">void</span> <a class="code" href="classentt_1_1emitter.html#a4ece275ff8736bcdcfb4103087801ea2">publish</a>(Args &amp;&amp;... args) {</div>
<div class="line"><a name="l00223"></a><span class="lineno"> 223</span>&#160; assure&lt;Event&gt;()-&gt;publish({ std::forward&lt;Args&gt;(args)... }, *static_cast&lt;Derived *&gt;(<span class="keyword">this</span>));</div>
<div class="line"><a name="l00224"></a><span class="lineno"> 224</span>&#160; }</div>
<div class="line"><a name="l00225"></a><span class="lineno"> 225</span>&#160; </div>
<div class="line"><a name="l00246"></a><span class="lineno"> 246</span>&#160; <span class="keyword">template</span>&lt;<span class="keyword">typename</span> Event&gt;</div>
<div class="line"><a name="l00247"></a><span class="lineno"><a class="line" href="classentt_1_1emitter.html#a0b580005200bb810a4a3e94320efcd8a"> 247</a></span>&#160; <a class="code" href="structentt_1_1emitter_1_1connection.html">connection&lt;Event&gt;</a> <a class="code" href="classentt_1_1emitter.html#a0b580005200bb810a4a3e94320efcd8a">on</a>(<a class="code" href="classentt_1_1emitter.html#a460311b6b4adfabe69b9d964c8d0b579">listener&lt;Event&gt;</a> instance) {</div>
<div class="line"><a name="l00248"></a><span class="lineno"> 248</span>&#160; <span class="keywordflow">return</span> assure&lt;Event&gt;()-&gt;on(std::move(instance));</div>
<div class="line"><a name="l00249"></a><span class="lineno"> 249</span>&#160; }</div>
<div class="line"><a name="l00250"></a><span class="lineno"> 250</span>&#160; </div>
<div class="line"><a name="l00271"></a><span class="lineno"> 271</span>&#160; <span class="keyword">template</span>&lt;<span class="keyword">typename</span> Event&gt;</div>
<div class="line"><a name="l00272"></a><span class="lineno"><a class="line" href="classentt_1_1emitter.html#a79834d452b0600ebe0e70c54f4a21fd6"> 272</a></span>&#160; <a class="code" href="structentt_1_1emitter_1_1connection.html">connection&lt;Event&gt;</a> <a class="code" href="classentt_1_1emitter.html#a79834d452b0600ebe0e70c54f4a21fd6">once</a>(<a class="code" href="classentt_1_1emitter.html#a460311b6b4adfabe69b9d964c8d0b579">listener&lt;Event&gt;</a> instance) {</div>
<div class="line"><a name="l00273"></a><span class="lineno"> 273</span>&#160; <span class="keywordflow">return</span> assure&lt;Event&gt;()-&gt;once(std::move(instance));</div>
<div class="line"><a name="l00274"></a><span class="lineno"> 274</span>&#160; }</div>
<div class="line"><a name="l00275"></a><span class="lineno"> 275</span>&#160; </div>
<div class="line"><a name="l00285"></a><span class="lineno"> 285</span>&#160; <span class="keyword">template</span>&lt;<span class="keyword">typename</span> Event&gt;</div>
<div class="line"><a name="l00286"></a><span class="lineno"><a class="line" href="classentt_1_1emitter.html#a14409e5061892c1342924b25f4ec2a0c"> 286</a></span>&#160; <span class="keywordtype">void</span> <a class="code" href="classentt_1_1emitter.html#a14409e5061892c1342924b25f4ec2a0c">erase</a>(<a class="code" href="structentt_1_1emitter_1_1connection.html">connection&lt;Event&gt;</a> conn) ENTT_NOEXCEPT {</div>
<div class="line"><a name="l00287"></a><span class="lineno"> 287</span>&#160; assure&lt;Event&gt;()-&gt;erase(std::move(conn));</div>
<div class="line"><a name="l00288"></a><span class="lineno"> 288</span>&#160; }</div>
<div class="line"><a name="l00289"></a><span class="lineno"> 289</span>&#160; </div>
<div class="line"><a name="l00298"></a><span class="lineno"> 298</span>&#160; <span class="keyword">template</span>&lt;<span class="keyword">typename</span> Event&gt;</div>
<div class="line"><a name="l00299"></a><span class="lineno"><a class="line" href="classentt_1_1emitter.html#a09386e63b0871a304e295921c574318a"> 299</a></span>&#160; <span class="keywordtype">void</span> <a class="code" href="classentt_1_1emitter.html#a09386e63b0871a304e295921c574318a">clear</a>() ENTT_NOEXCEPT {</div>
<div class="line"><a name="l00300"></a><span class="lineno"> 300</span>&#160; assure&lt;Event&gt;()-&gt;clear();</div>
<div class="line"><a name="l00301"></a><span class="lineno"> 301</span>&#160; }</div>
<div class="line"><a name="l00302"></a><span class="lineno"> 302</span>&#160; </div>
<div class="line"><a name="l00309"></a><span class="lineno"><a class="line" href="classentt_1_1emitter.html#acedafaefe2c9c91282c84e79aef26a35"> 309</a></span>&#160; <span class="keywordtype">void</span> <a class="code" href="classentt_1_1emitter.html#acedafaefe2c9c91282c84e79aef26a35">clear</a>() ENTT_NOEXCEPT {</div>
<div class="line"><a name="l00310"></a><span class="lineno"> 310</span>&#160; std::for_each(handlers.begin(), handlers.end(), [](<span class="keyword">auto</span> &amp;&amp;hdata) {</div>
<div class="line"><a name="l00311"></a><span class="lineno"> 311</span>&#160; <span class="keywordflow">return</span> hdata.handler ? hdata.handler-&gt;clear() : void();</div>
<div class="line"><a name="l00312"></a><span class="lineno"> 312</span>&#160; });</div>
<div class="line"><a name="l00313"></a><span class="lineno"> 313</span>&#160; }</div>
<div class="line"><a name="l00314"></a><span class="lineno"> 314</span>&#160; </div>
<div class="line"><a name="l00320"></a><span class="lineno"> 320</span>&#160; <span class="keyword">template</span>&lt;<span class="keyword">typename</span> Event&gt;</div>
<div class="line"><a name="l00321"></a><span class="lineno"><a class="line" href="classentt_1_1emitter.html#a841edafebf32b85da11657578e887961"> 321</a></span>&#160; <span class="keywordtype">bool</span> <a class="code" href="classentt_1_1emitter.html#a841edafebf32b85da11657578e887961">empty</a>() const ENTT_NOEXCEPT {</div>
<div class="line"><a name="l00322"></a><span class="lineno"> 322</span>&#160; <span class="keywordflow">return</span> assure&lt;Event&gt;()-&gt;empty();</div>
<div class="line"><a name="l00323"></a><span class="lineno"> 323</span>&#160; }</div>
<div class="line"><a name="l00324"></a><span class="lineno"> 324</span>&#160; </div>
<div class="line"><a name="l00329"></a><span class="lineno"><a class="line" href="classentt_1_1emitter.html#afbac9d6fb49c28f06cb382715ed92ab9"> 329</a></span>&#160; <span class="keywordtype">bool</span> <a class="code" href="classentt_1_1emitter.html#afbac9d6fb49c28f06cb382715ed92ab9">empty</a>() const ENTT_NOEXCEPT {</div>
<div class="line"><a name="l00330"></a><span class="lineno"> 330</span>&#160; <span class="keywordflow">return</span> std::all_of(handlers.cbegin(), handlers.cend(), [](<span class="keyword">auto</span> &amp;&amp;hdata) {</div>
<div class="line"><a name="l00331"></a><span class="lineno"> 331</span>&#160; <span class="keywordflow">return</span> !hdata.handler || hdata.handler-&gt;empty();</div>
<div class="line"><a name="l00332"></a><span class="lineno"> 332</span>&#160; });</div>
<div class="line"><a name="l00333"></a><span class="lineno"> 333</span>&#160; }</div>
<div class="line"><a name="l00334"></a><span class="lineno"> 334</span>&#160; </div>
<div class="line"><a name="l00335"></a><span class="lineno"> 335</span>&#160;<span class="keyword">private</span>:</div>
<div class="line"><a name="l00336"></a><span class="lineno"> 336</span>&#160; <span class="keyword">mutable</span> std::vector&lt;handler_data&gt; handlers{};</div>
<div class="line"><a name="l00337"></a><span class="lineno"> 337</span>&#160;};</div>
<div class="line"><a name="l00338"></a><span class="lineno"> 338</span>&#160; </div>
<div class="line"><a name="l00339"></a><span class="lineno"> 339</span>&#160; </div>
<div class="line"><a name="l00340"></a><span class="lineno"> 340</span>&#160;}</div>
<div class="line"><a name="l00341"></a><span class="lineno"> 341</span>&#160; </div>
<div class="line"><a name="l00342"></a><span class="lineno"> 342</span>&#160; </div>
<div class="line"><a name="l00343"></a><span class="lineno"> 343</span>&#160;<span class="preprocessor">#endif // ENTT_SIGNAL_EMITTER_HPP</span></div>
</div><!-- fragment --></div><!-- contents -->
<div class="ttc" id="aclassentt_1_1emitter_html_acedafaefe2c9c91282c84e79aef26a35"><div class="ttname"><a href="classentt_1_1emitter.html#acedafaefe2c9c91282c84e79aef26a35">entt::emitter::clear</a></div><div class="ttdeci">void clear() ENTT_NOEXCEPT</div><div class="ttdoc">Disconnects all the listeners.</div><div class="ttdef"><b>Definition:</b> <a href="emitter_8hpp_source.html#l00309">emitter.hpp:309</a></div></div>
<div class="ttc" id="aclassentt_1_1emitter_html"><div class="ttname"><a href="classentt_1_1emitter.html">entt::emitter</a></div><div class="ttdoc">General purpose event emitter.</div><div class="ttdef"><b>Definition:</b> <a href="emitter_8hpp_source.html#l00042">emitter.hpp:42</a></div></div>
<div class="ttc" id="aclassentt_1_1emitter_html_a841edafebf32b85da11657578e887961"><div class="ttname"><a href="classentt_1_1emitter.html#a841edafebf32b85da11657578e887961">entt::emitter::empty</a></div><div class="ttdeci">bool empty() const ENTT_NOEXCEPT</div><div class="ttdoc">Checks if there are listeners registered for the specific event.</div><div class="ttdef"><b>Definition:</b> <a href="emitter_8hpp_source.html#l00321">emitter.hpp:321</a></div></div>
<div class="ttc" id="astructentt_1_1emitter_1_1connection_html"><div class="ttname"><a href="structentt_1_1emitter_1_1connection.html">entt::emitter::connection</a></div><div class="ttdoc">Generic connection type for events.</div><div class="ttdef"><b>Definition:</b> <a href="emitter_8hpp_source.html#l00180">emitter.hpp:180</a></div></div>
<div class="ttc" id="aclassentt_1_1emitter_html_afbac9d6fb49c28f06cb382715ed92ab9"><div class="ttname"><a href="classentt_1_1emitter.html#afbac9d6fb49c28f06cb382715ed92ab9">entt::emitter::empty</a></div><div class="ttdeci">bool empty() const ENTT_NOEXCEPT</div><div class="ttdoc">Checks if there are listeners registered with the event emitter.</div><div class="ttdef"><b>Definition:</b> <a href="emitter_8hpp_source.html#l00329">emitter.hpp:329</a></div></div>
<div class="ttc" id="aclassentt_1_1emitter_html_a460311b6b4adfabe69b9d964c8d0b579"><div class="ttname"><a href="classentt_1_1emitter.html#a460311b6b4adfabe69b9d964c8d0b579">entt::emitter::listener</a></div><div class="ttdeci">typename event_handler&lt; Event &gt;::listener_type listener</div><div class="ttdoc">Type of listeners accepted for the given event.</div><div class="ttdef"><b>Definition:</b> <a href="emitter_8hpp_source.html#l00168">emitter.hpp:168</a></div></div>
<div class="ttc" id="aclassentt_1_1emitter_html_a14409e5061892c1342924b25f4ec2a0c"><div class="ttname"><a href="classentt_1_1emitter.html#a14409e5061892c1342924b25f4ec2a0c">entt::emitter::erase</a></div><div class="ttdeci">void erase(connection&lt; Event &gt; conn) ENTT_NOEXCEPT</div><div class="ttdoc">Disconnects a listener from the event emitter.</div><div class="ttdef"><b>Definition:</b> <a href="emitter_8hpp_source.html#l00286">emitter.hpp:286</a></div></div>
<div class="ttc" id="aclassentt_1_1emitter_html_a09386e63b0871a304e295921c574318a"><div class="ttname"><a href="classentt_1_1emitter.html#a09386e63b0871a304e295921c574318a">entt::emitter::clear</a></div><div class="ttdeci">void clear() ENTT_NOEXCEPT</div><div class="ttdoc">Disconnects all the listeners for the given event type.</div><div class="ttdef"><b>Definition:</b> <a href="emitter_8hpp_source.html#l00299">emitter.hpp:299</a></div></div>
<div class="ttc" id="aclassentt_1_1emitter_html_a9c2e7d7eb8accd1d71e8aacce404e4d9"><div class="ttname"><a href="classentt_1_1emitter.html#a9c2e7d7eb8accd1d71e8aacce404e4d9">entt::emitter::emitter</a></div><div class="ttdeci">emitter() ENTT_NOEXCEPT=default</div><div class="ttdoc">Default constructor.</div></div>
<div class="ttc" id="anamespaceentt_html"><div class="ttname"><a href="namespaceentt.html">entt</a></div><div class="ttdoc">EnTT default namespace.</div><div class="ttdef"><b>Definition:</b> <a href="algorithm_8hpp_source.html#l00012">algorithm.hpp:12</a></div></div>
<div class="ttc" id="aclassentt_1_1emitter_html_a0b580005200bb810a4a3e94320efcd8a"><div class="ttname"><a href="classentt_1_1emitter.html#a0b580005200bb810a4a3e94320efcd8a">entt::emitter::on</a></div><div class="ttdeci">connection&lt; Event &gt; on(listener&lt; Event &gt; instance)</div><div class="ttdoc">Registers a long-lived listener with the event emitter.</div><div class="ttdef"><b>Definition:</b> <a href="emitter_8hpp_source.html#l00247">emitter.hpp:247</a></div></div>
<div class="ttc" id="astructentt_1_1emitter_1_1connection_html_a846b5190231aee4dd2340ab910adea40"><div class="ttname"><a href="structentt_1_1emitter_1_1connection.html#a846b5190231aee4dd2340ab910adea40">entt::emitter::connection::connection</a></div><div class="ttdeci">connection() ENTT_NOEXCEPT=default</div><div class="ttdoc">Default constructor.</div></div>
<div class="ttc" id="aclassentt_1_1emitter_html_a79834d452b0600ebe0e70c54f4a21fd6"><div class="ttname"><a href="classentt_1_1emitter.html#a79834d452b0600ebe0e70c54f4a21fd6">entt::emitter::once</a></div><div class="ttdeci">connection&lt; Event &gt; once(listener&lt; Event &gt; instance)</div><div class="ttdoc">Registers a short-lived listener with the event emitter.</div><div class="ttdef"><b>Definition:</b> <a href="emitter_8hpp_source.html#l00272">emitter.hpp:272</a></div></div>
<div class="ttc" id="aclassentt_1_1emitter_html_ab270d2c6d986621a781467e29e64629c"><div class="ttname"><a href="classentt_1_1emitter.html#ab270d2c6d986621a781467e29e64629c">entt::emitter::operator=</a></div><div class="ttdeci">emitter &amp; operator=(emitter &amp;&amp;)=default</div><div class="ttdoc">Default move assignment operator.</div></div>
<div class="ttc" id="aclassentt_1_1family_html"><div class="ttname"><a href="classentt_1_1family.html">entt::family</a></div><div class="ttdoc">Dynamic identifier generator.</div><div class="ttdef"><b>Definition:</b> <a href="family_8hpp_source.html#l00020">family.hpp:20</a></div></div>
<div class="ttc" id="aclassentt_1_1emitter_html_a4ece275ff8736bcdcfb4103087801ea2"><div class="ttname"><a href="classentt_1_1emitter.html#a4ece275ff8736bcdcfb4103087801ea2">entt::emitter::publish</a></div><div class="ttdeci">void publish(Args &amp;&amp;... args)</div><div class="ttdoc">Emits the given event.</div><div class="ttdef"><b>Definition:</b> <a href="emitter_8hpp_source.html#l00222">emitter.hpp:222</a></div></div>
<!-- start footer part -->
<hr class="footer"/><address class="footer"><small>
Generated by &#160;<a href="http://www.doxygen.org/index.html">
<img class="footer" src="doxygen.png" alt="doxygen"/>
</a> 1.8.16
</small></address>
</body>
</html>