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43 <li class="navelem"><a class="el" href="namespacesigc.html">sigc</a></li><li class="navelem"><a class="el" href="structsigc_1_1trackable.html">trackable</a></li> </ul>
48 <a href="#pub-types">Public Types</a> |
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51 <div class="headertitle">
52 <div class="title">sigc::trackable Struct Reference<div class="ingroups"><a class="el" href="group__signal.html">Signals</a></div></div> </div>
54 <div class="contents">
56 <p>Base class for objects with auto-disconnection.
57 <a href="structsigc_1_1trackable.html#details">More...</a></p>
59 <p><code>#include <sigc++/trackable.h></code></p>
60 <div class="dynheader">
61 Inheritance diagram for sigc::trackable:</div>
62 <div class="dyncontent">
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115 <center><span class="legend">[<a href="graph_legend.html">legend</a>]</span></center></div>
116 <table class="memberdecls">
117 <tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-types"></a>
118 Public Types</h2></td></tr>
119 <tr class="memitem:a3338954d7565534bd945290b798e13ed"><td class="memItemLeft" align="right" valign="top">typedef internal::func_destroy_notify </td><td class="memItemRight" valign="bottom"><a class="el" href="structsigc_1_1trackable.html#a3338954d7565534bd945290b798e13ed">func_destroy_notify</a></td></tr>
120 <tr class="separator:a3338954d7565534bd945290b798e13ed"><td class="memSeparator" colspan="2"> </td></tr>
121 </table><table class="memberdecls">
122 <tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
123 Public Member Functions</h2></td></tr>
124 <tr class="memitem:a7e1348841e762fb41b41c6f2ce9fa073"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="structsigc_1_1trackable.html#a7e1348841e762fb41b41c6f2ce9fa073">trackable</a> () noexcept</td></tr>
125 <tr class="separator:a7e1348841e762fb41b41c6f2ce9fa073"><td class="memSeparator" colspan="2"> </td></tr>
126 <tr class="memitem:ac8431d9452c9698a012597e6560c72fa"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="structsigc_1_1trackable.html#ac8431d9452c9698a012597e6560c72fa">trackable</a> (const <a class="el" href="structsigc_1_1trackable.html">trackable</a> & src) noexcept</td></tr>
127 <tr class="separator:ac8431d9452c9698a012597e6560c72fa"><td class="memSeparator" colspan="2"> </td></tr>
128 <tr class="memitem:aba42ed8afb6598106cf68c18a7387f18"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="structsigc_1_1trackable.html#aba42ed8afb6598106cf68c18a7387f18">trackable</a> (<a class="el" href="structsigc_1_1trackable.html">trackable</a> && src)</td></tr>
129 <tr class="separator:aba42ed8afb6598106cf68c18a7387f18"><td class="memSeparator" colspan="2"> </td></tr>
130 <tr class="memitem:a75587da09e30031db7a2519843f1f4fb"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="structsigc_1_1trackable.html#a75587da09e30031db7a2519843f1f4fb">~trackable</a> ()</td></tr>
131 <tr class="separator:a75587da09e30031db7a2519843f1f4fb"><td class="memSeparator" colspan="2"> </td></tr>
132 <tr class="memitem:aed95b40846f61b4f202348c71d5913ea"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="structsigc_1_1trackable.html#aed95b40846f61b4f202348c71d5913ea">add_destroy_notify_callback</a> (void *<a class="elRef" href="http://gcc.gnu.org/onlinedocs/libstdc++/latest-doxygen/a01635.html#a4a0b2b9455f1e2025d77ba49b3863e33">data</a>, <a class="el" href="structsigc_1_1trackable.html#a3338954d7565534bd945290b798e13ed">func_destroy_notify</a> func) const</td></tr>
133 <tr class="memdesc:aed95b40846f61b4f202348c71d5913ea"><td class="mdescLeft"> </td><td class="mdescRight">Add a callback that is executed (notified) when the trackable object is detroyed. <a href="structsigc_1_1trackable.html#aed95b40846f61b4f202348c71d5913ea">More...</a><br /></td></tr>
134 <tr class="separator:aed95b40846f61b4f202348c71d5913ea"><td class="memSeparator" colspan="2"> </td></tr>
135 <tr class="memitem:af2e23cfe7adc1ca844a3350bbac557cb"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="structsigc_1_1trackable.html#af2e23cfe7adc1ca844a3350bbac557cb">notify_callbacks</a> ()</td></tr>
136 <tr class="memdesc:af2e23cfe7adc1ca844a3350bbac557cb"><td class="mdescLeft"> </td><td class="mdescRight">Execute and remove all previously installed callbacks. <a href="structsigc_1_1trackable.html#af2e23cfe7adc1ca844a3350bbac557cb">More...</a><br /></td></tr>
137 <tr class="separator:af2e23cfe7adc1ca844a3350bbac557cb"><td class="memSeparator" colspan="2"> </td></tr>
138 <tr class="memitem:a7494fbad23a65932ff1457d00d4edaf5"><td class="memItemLeft" align="right" valign="top"><a class="el" href="structsigc_1_1trackable.html">trackable</a> & </td><td class="memItemRight" valign="bottom"><a class="el" href="structsigc_1_1trackable.html#a7494fbad23a65932ff1457d00d4edaf5">operator=</a> (const <a class="el" href="structsigc_1_1trackable.html">trackable</a> & src)</td></tr>
139 <tr class="separator:a7494fbad23a65932ff1457d00d4edaf5"><td class="memSeparator" colspan="2"> </td></tr>
140 <tr class="memitem:ac3d61cdb452dc46fcdc8a8d42d9c079d"><td class="memItemLeft" align="right" valign="top"><a class="el" href="structsigc_1_1trackable.html">trackable</a> & </td><td class="memItemRight" valign="bottom"><a class="el" href="structsigc_1_1trackable.html#ac3d61cdb452dc46fcdc8a8d42d9c079d">operator=</a> (<a class="el" href="structsigc_1_1trackable.html">trackable</a> && src)</td></tr>
141 <tr class="separator:ac3d61cdb452dc46fcdc8a8d42d9c079d"><td class="memSeparator" colspan="2"> </td></tr>
142 <tr class="memitem:ad1c1845ff5b356f13b32180077f83cff"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="structsigc_1_1trackable.html#ad1c1845ff5b356f13b32180077f83cff">remove_destroy_notify_callback</a> (void *<a class="elRef" href="http://gcc.gnu.org/onlinedocs/libstdc++/latest-doxygen/a01635.html#a4a0b2b9455f1e2025d77ba49b3863e33">data</a>) const</td></tr>
143 <tr class="memdesc:ad1c1845ff5b356f13b32180077f83cff"><td class="mdescLeft"> </td><td class="mdescRight">Remove a callback previously installed with <a class="el" href="structsigc_1_1trackable.html#aed95b40846f61b4f202348c71d5913ea" title="Add a callback that is executed (notified) when the trackable object is detroyed.">add_destroy_notify_callback()</a>. <a href="structsigc_1_1trackable.html#ad1c1845ff5b356f13b32180077f83cff">More...</a><br /></td></tr>
144 <tr class="separator:ad1c1845ff5b356f13b32180077f83cff"><td class="memSeparator" colspan="2"> </td></tr>
146 <a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
147 <div class="textblock"><p>Base class for objects with auto-disconnection. </p>
148 <p>trackable must be inherited when objects shall automatically invalidate slots referring to them on destruction. A slot built from a member function of a trackable derived type installs a callback that is invoked when the trackable object is destroyed or overwritten.</p>
149 <p><a class="el" href="structsigc_1_1trackable.html#aed95b40846f61b4f202348c71d5913ea" title="Add a callback that is executed (notified) when the trackable object is detroyed.">add_destroy_notify_callback()</a> and <a class="el" href="structsigc_1_1trackable.html#ad1c1845ff5b356f13b32180077f83cff" title="Remove a callback previously installed with add_destroy_notify_callback().">remove_destroy_notify_callback()</a> can be used to manually install and remove callbacks when notification of the object dying is needed.</p>
150 <p><a class="el" href="structsigc_1_1trackable.html#af2e23cfe7adc1ca844a3350bbac557cb" title="Execute and remove all previously installed callbacks.">notify_callbacks()</a> invokes and removes all previously installed callbacks and can therefore be used to disconnect from all signals.</p>
151 <p>Note that there is no virtual destructor. Don't use <code>trackable*</code> as pointer type for managing your data or the destructors of your derived types won't be called when deleting your objects. </p>
152 </div><h2 class="groupheader">Member Typedef Documentation</h2>
153 <a id="a3338954d7565534bd945290b798e13ed"></a>
154 <h2 class="memtitle"><span class="permalink"><a href="#a3338954d7565534bd945290b798e13ed">◆ </a></span>func_destroy_notify</h2>
156 <div class="memitem">
157 <div class="memproto">
158 <table class="memname">
160 <td class="memname">typedef internal::func_destroy_notify <a class="el" href="structsigc_1_1trackable.html#a3338954d7565534bd945290b798e13ed">sigc::trackable::func_destroy_notify</a></td>
163 </div><div class="memdoc">
167 <h2 class="groupheader">Constructor & Destructor Documentation</h2>
168 <a id="a7e1348841e762fb41b41c6f2ce9fa073"></a>
169 <h2 class="memtitle"><span class="permalink"><a href="#a7e1348841e762fb41b41c6f2ce9fa073">◆ </a></span>trackable() <span class="overload">[1/3]</span></h2>
171 <div class="memitem">
172 <div class="memproto">
173 <table class="mlabels">
175 <td class="mlabels-left">
176 <table class="memname">
178 <td class="memname">sigc::trackable::trackable </td>
180 <td class="paramname"></td><td>)</td>
185 <td class="mlabels-right">
186 <span class="mlabels"><span class="mlabel">noexcept</span></span> </td>
189 </div><div class="memdoc">
193 <a id="ac8431d9452c9698a012597e6560c72fa"></a>
194 <h2 class="memtitle"><span class="permalink"><a href="#ac8431d9452c9698a012597e6560c72fa">◆ </a></span>trackable() <span class="overload">[2/3]</span></h2>
196 <div class="memitem">
197 <div class="memproto">
198 <table class="mlabels">
200 <td class="mlabels-left">
201 <table class="memname">
203 <td class="memname">sigc::trackable::trackable </td>
205 <td class="paramtype">const <a class="el" href="structsigc_1_1trackable.html">trackable</a> & </td>
206 <td class="paramname"><em>src</em></td><td>)</td>
211 <td class="mlabels-right">
212 <span class="mlabels"><span class="mlabel">noexcept</span></span> </td>
215 </div><div class="memdoc">
219 <a id="aba42ed8afb6598106cf68c18a7387f18"></a>
220 <h2 class="memtitle"><span class="permalink"><a href="#aba42ed8afb6598106cf68c18a7387f18">◆ </a></span>trackable() <span class="overload">[3/3]</span></h2>
222 <div class="memitem">
223 <div class="memproto">
224 <table class="memname">
226 <td class="memname">sigc::trackable::trackable </td>
228 <td class="paramtype"><a class="el" href="structsigc_1_1trackable.html">trackable</a> && </td>
229 <td class="paramname"><em>src</em></td><td>)</td>
233 </div><div class="memdoc">
237 <a id="a75587da09e30031db7a2519843f1f4fb"></a>
238 <h2 class="memtitle"><span class="permalink"><a href="#a75587da09e30031db7a2519843f1f4fb">◆ </a></span>~trackable()</h2>
240 <div class="memitem">
241 <div class="memproto">
242 <table class="memname">
244 <td class="memname">sigc::trackable::~trackable </td>
246 <td class="paramname"></td><td>)</td>
250 </div><div class="memdoc">
254 <h2 class="groupheader">Member Function Documentation</h2>
255 <a id="aed95b40846f61b4f202348c71d5913ea"></a>
256 <h2 class="memtitle"><span class="permalink"><a href="#aed95b40846f61b4f202348c71d5913ea">◆ </a></span>add_destroy_notify_callback()</h2>
258 <div class="memitem">
259 <div class="memproto">
260 <table class="memname">
262 <td class="memname">void sigc::trackable::add_destroy_notify_callback </td>
264 <td class="paramtype">void * </td>
265 <td class="paramname"><em>data</em>, </td>
268 <td class="paramkey"></td>
270 <td class="paramtype"><a class="el" href="structsigc_1_1trackable.html#a3338954d7565534bd945290b798e13ed">func_destroy_notify</a> </td>
271 <td class="paramname"><em>func</em> </td>
276 <td></td><td> const</td>
279 </div><div class="memdoc">
281 <p>Add a callback that is executed (notified) when the trackable object is detroyed. </p>
282 <dl class="params"><dt>Parameters</dt><dd>
283 <table class="params">
284 <tr><td class="paramname">data</td><td>Passed into func upon notification. </td></tr>
285 <tr><td class="paramname">func</td><td>Callback executed upon destruction of the object. </td></tr>
292 <a id="af2e23cfe7adc1ca844a3350bbac557cb"></a>
293 <h2 class="memtitle"><span class="permalink"><a href="#af2e23cfe7adc1ca844a3350bbac557cb">◆ </a></span>notify_callbacks()</h2>
295 <div class="memitem">
296 <div class="memproto">
297 <table class="memname">
299 <td class="memname">void sigc::trackable::notify_callbacks </td>
301 <td class="paramname"></td><td>)</td>
305 </div><div class="memdoc">
307 <p>Execute and remove all previously installed callbacks. </p>
311 <a id="a7494fbad23a65932ff1457d00d4edaf5"></a>
312 <h2 class="memtitle"><span class="permalink"><a href="#a7494fbad23a65932ff1457d00d4edaf5">◆ </a></span>operator=() <span class="overload">[1/2]</span></h2>
314 <div class="memitem">
315 <div class="memproto">
316 <table class="memname">
318 <td class="memname"><a class="el" href="structsigc_1_1trackable.html">trackable</a>& sigc::trackable::operator= </td>
320 <td class="paramtype">const <a class="el" href="structsigc_1_1trackable.html">trackable</a> & </td>
321 <td class="paramname"><em>src</em></td><td>)</td>
325 </div><div class="memdoc">
329 <a id="ac3d61cdb452dc46fcdc8a8d42d9c079d"></a>
330 <h2 class="memtitle"><span class="permalink"><a href="#ac3d61cdb452dc46fcdc8a8d42d9c079d">◆ </a></span>operator=() <span class="overload">[2/2]</span></h2>
332 <div class="memitem">
333 <div class="memproto">
334 <table class="memname">
336 <td class="memname"><a class="el" href="structsigc_1_1trackable.html">trackable</a>& sigc::trackable::operator= </td>
338 <td class="paramtype"><a class="el" href="structsigc_1_1trackable.html">trackable</a> && </td>
339 <td class="paramname"><em>src</em></td><td>)</td>
343 </div><div class="memdoc">
347 <a id="ad1c1845ff5b356f13b32180077f83cff"></a>
348 <h2 class="memtitle"><span class="permalink"><a href="#ad1c1845ff5b356f13b32180077f83cff">◆ </a></span>remove_destroy_notify_callback()</h2>
350 <div class="memitem">
351 <div class="memproto">
352 <table class="memname">
354 <td class="memname">void sigc::trackable::remove_destroy_notify_callback </td>
356 <td class="paramtype">void * </td>
357 <td class="paramname"><em>data</em></td><td>)</td>
361 </div><div class="memdoc">
363 <p>Remove a callback previously installed with <a class="el" href="structsigc_1_1trackable.html#aed95b40846f61b4f202348c71d5913ea" title="Add a callback that is executed (notified) when the trackable object is detroyed.">add_destroy_notify_callback()</a>. </p>
364 <p>The callback is not executed. </p><dl class="params"><dt>Parameters</dt><dd>
365 <table class="params">
366 <tr><td class="paramname">data</td><td>Parameter passed into previous call to <a class="el" href="structsigc_1_1trackable.html#aed95b40846f61b4f202348c71d5913ea" title="Add a callback that is executed (notified) when the trackable object is detroyed.">add_destroy_notify_callback()</a>. </td></tr>
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