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<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>
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<p>Base class for objects with auto-disconnection.
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<p><code>#include <sigc++/trackable.h></code></p>
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Inheritance diagram for sigc::trackable:</div>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-types"></a>
Public Types</h2></td></tr>
<tr class="memitem:a3338954d7565534bd945290b798e13ed"><td class="memItemLeft" align="right" valign="top">typedef <br class="typebreak" />
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>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr class="memitem:a09f5b2fe24c2ac1da8322ed0ea1553ea"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="structsigc_1_1trackable.html#a09f5b2fe24c2ac1da8322ed0ea1553ea">trackable</a> ()</td></tr>
<tr class="separator:a09f5b2fe24c2ac1da8322ed0ea1553ea"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a7efefbcab4645648a366da3439242198"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="structsigc_1_1trackable.html#a7efefbcab4645648a366da3439242198">trackable</a> (const <a class="el" href="structsigc_1_1trackable.html">trackable</a>& src)</td></tr>
<tr class="separator:a7efefbcab4645648a366da3439242198"><td class="memSeparator" colspan="2"> </td></tr>
<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>
<tr class="separator:a75587da09e30031db7a2519843f1f4fb"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ab14931670837728e49bb5ca88fb16db5"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="structsigc_1_1trackable.html#ab14931670837728e49bb5ca88fb16db5">add_destroy_notify_callback</a> (void* data, <a class="el" href="structsigc_1_1trackable.html#a3338954d7565534bd945290b798e13ed">func_destroy_notify</a> func) const </td></tr>
<tr class="memdesc:ab14931670837728e49bb5ca88fb16db5"><td class="mdescLeft"> </td><td class="mdescRight">Add a callback that is executed (notified) when the trackable object is detroyed. <a href="#ab14931670837728e49bb5ca88fb16db5">More...</a><br /></td></tr>
<tr class="separator:ab14931670837728e49bb5ca88fb16db5"><td class="memSeparator" colspan="2"> </td></tr>
<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>
<tr class="memdesc:af2e23cfe7adc1ca844a3350bbac557cb"><td class="mdescLeft"> </td><td class="mdescRight">Execute and remove all previously installed callbacks. <a href="#af2e23cfe7adc1ca844a3350bbac557cb">More...</a><br /></td></tr>
<tr class="separator:af2e23cfe7adc1ca844a3350bbac557cb"><td class="memSeparator" colspan="2"> </td></tr>
<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>
<tr class="separator:a7494fbad23a65932ff1457d00d4edaf5"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a8b9dffa8a50ff13ba33e6c7f10468e2b"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="structsigc_1_1trackable.html#a8b9dffa8a50ff13ba33e6c7f10468e2b">remove_destroy_notify_callback</a> (void* data) const </td></tr>
<tr class="memdesc:a8b9dffa8a50ff13ba33e6c7f10468e2b"><td class="mdescLeft"> </td><td class="mdescRight">Remove a callback previously installed with <a class="el" href="structsigc_1_1trackable.html#ab14931670837728e49bb5ca88fb16db5" title="Add a callback that is executed (notified) when the trackable object is detroyed. ...">add_destroy_notify_callback()</a>. <a href="#a8b9dffa8a50ff13ba33e6c7f10468e2b">More...</a><br /></td></tr>
<tr class="separator:a8b9dffa8a50ff13ba33e6c7f10468e2b"><td class="memSeparator" colspan="2"> </td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>Base class for objects with auto-disconnection. </p>
<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>
<p><a class="el" href="structsigc_1_1trackable.html#ab14931670837728e49bb5ca88fb16db5" 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#a8b9dffa8a50ff13ba33e6c7f10468e2b" 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>
<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>
<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>
</div><h2 class="groupheader">Member Typedef Documentation</h2>
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<td class="memname">typedef internal::func_destroy_notify <a class="el" href="structsigc_1_1trackable.html#a3338954d7565534bd945290b798e13ed">sigc::trackable::func_destroy_notify</a></td>
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<h2 class="groupheader">Constructor & Destructor Documentation</h2>
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<td class="memname">sigc::trackable::trackable </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
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<td class="memname">sigc::trackable::trackable </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="structsigc_1_1trackable.html">trackable</a>& </td>
<td class="paramname"><em>src</em></td><td>)</td>
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<td class="memname">sigc::trackable::~trackable </td>
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<h2 class="groupheader">Member Function Documentation</h2>
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<td class="memname">void sigc::trackable::add_destroy_notify_callback </td>
<td>(</td>
<td class="paramtype">void * </td>
<td class="paramname"><em>data</em>, </td>
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<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="structsigc_1_1trackable.html#a3338954d7565534bd945290b798e13ed">func_destroy_notify</a> </td>
<td class="paramname"><em>func</em> </td>
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<p>Add a callback that is executed (notified) when the trackable object is detroyed. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">data</td><td>Passed into func upon notification. </td></tr>
<tr><td class="paramname">func</td><td>Callback executed upon destruction of the object. </td></tr>
</table>
</dd>
</dl>
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<td class="memname">void sigc::trackable::notify_callbacks </td>
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<p>Execute and remove all previously installed callbacks. </p>
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<td class="memname"><a class="el" href="structsigc_1_1trackable.html">trackable</a>& sigc::trackable::operator= </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="structsigc_1_1trackable.html">trackable</a>& </td>
<td class="paramname"><em>src</em></td><td>)</td>
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<td class="memname">void sigc::trackable::remove_destroy_notify_callback </td>
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<td class="paramtype">void * </td>
<td class="paramname"><em>data</em></td><td>)</td>
<td> const</td>
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<p>Remove a callback previously installed with <a class="el" href="structsigc_1_1trackable.html#ab14931670837728e49bb5ca88fb16db5" title="Add a callback that is executed (notified) when the trackable object is detroyed. ...">add_destroy_notify_callback()</a>. </p>
<p>The callback is not executed. </p><dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">data</td><td>Parameter passed into previous call to <a class="el" href="structsigc_1_1trackable.html#ab14931670837728e49bb5ca88fb16db5" 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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</dd>
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distrib
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Mageia
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5
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x86_64
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media
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core-release
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by-pkgid
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1594165b156266e3a745f0375fa80832
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files
>
603
