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<p>Holds a list of ChangeListeners, and sends messages to them when instructed.  
 <a href="classChangeBroadcaster.html#details">More...</a></p>
<div id="dynsection-0" onclick="return toggleVisibility(this)" class="dynheader closed" style="cursor:pointer;">
  <img id="dynsection-0-trigger" src="closed.png" alt="+"/> Inheritance diagram for ChangeBroadcaster:</div>
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<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr class="memitem:a1c8ccfa186a47d58a05e7f1f1576c038"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classChangeBroadcaster.html#a1c8ccfa186a47d58a05e7f1f1576c038">ChangeBroadcaster</a> () noexcept</td></tr>
<tr class="memdesc:a1c8ccfa186a47d58a05e7f1f1576c038"><td class="mdescLeft">&#160;</td><td class="mdescRight">Creates an <a class="el" href="classChangeBroadcaster.html" title="Holds a list of ChangeListeners, and sends messages to them when instructed. ">ChangeBroadcaster</a>.  <a href="#a1c8ccfa186a47d58a05e7f1f1576c038">More...</a><br /></td></tr>
<tr class="separator:a1c8ccfa186a47d58a05e7f1f1576c038"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a3b2f8465cc6c09c0583c8bdf56319742"><td class="memItemLeft" align="right" valign="top">virtual&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classChangeBroadcaster.html#a3b2f8465cc6c09c0583c8bdf56319742">~ChangeBroadcaster</a> ()</td></tr>
<tr class="memdesc:a3b2f8465cc6c09c0583c8bdf56319742"><td class="mdescLeft">&#160;</td><td class="mdescRight">Destructor.  <a href="#a3b2f8465cc6c09c0583c8bdf56319742">More...</a><br /></td></tr>
<tr class="separator:a3b2f8465cc6c09c0583c8bdf56319742"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ad68416fe79a94cd5c99519bdea6c2a06"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classChangeBroadcaster.html#ad68416fe79a94cd5c99519bdea6c2a06">addChangeListener</a> (<a class="el" href="classChangeListener.html">ChangeListener</a> *listener)</td></tr>
<tr class="memdesc:ad68416fe79a94cd5c99519bdea6c2a06"><td class="mdescLeft">&#160;</td><td class="mdescRight">Registers a listener to receive change callbacks from this broadcaster.  <a href="#ad68416fe79a94cd5c99519bdea6c2a06">More...</a><br /></td></tr>
<tr class="separator:ad68416fe79a94cd5c99519bdea6c2a06"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ae558a26c795278549a63e342bd5f1650"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classChangeBroadcaster.html#ae558a26c795278549a63e342bd5f1650">removeChangeListener</a> (<a class="el" href="classChangeListener.html">ChangeListener</a> *listener)</td></tr>
<tr class="memdesc:ae558a26c795278549a63e342bd5f1650"><td class="mdescLeft">&#160;</td><td class="mdescRight">Unregisters a listener from the list.  <a href="#ae558a26c795278549a63e342bd5f1650">More...</a><br /></td></tr>
<tr class="separator:ae558a26c795278549a63e342bd5f1650"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a6b9c150078318d419debc82e6f22ce58"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classChangeBroadcaster.html#a6b9c150078318d419debc82e6f22ce58">removeAllChangeListeners</a> ()</td></tr>
<tr class="memdesc:a6b9c150078318d419debc82e6f22ce58"><td class="mdescLeft">&#160;</td><td class="mdescRight">Removes all listeners from the list.  <a href="#a6b9c150078318d419debc82e6f22ce58">More...</a><br /></td></tr>
<tr class="separator:a6b9c150078318d419debc82e6f22ce58"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a10f01d1c0a7fde85355321985a682cbd"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classChangeBroadcaster.html#a10f01d1c0a7fde85355321985a682cbd">sendChangeMessage</a> ()</td></tr>
<tr class="memdesc:a10f01d1c0a7fde85355321985a682cbd"><td class="mdescLeft">&#160;</td><td class="mdescRight">Causes an asynchronous change message to be sent to all the registered listeners.  <a href="#a10f01d1c0a7fde85355321985a682cbd">More...</a><br /></td></tr>
<tr class="separator:a10f01d1c0a7fde85355321985a682cbd"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a5d16cd01b9af4bacb1716530af17f77b"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classChangeBroadcaster.html#a5d16cd01b9af4bacb1716530af17f77b">sendSynchronousChangeMessage</a> ()</td></tr>
<tr class="memdesc:a5d16cd01b9af4bacb1716530af17f77b"><td class="mdescLeft">&#160;</td><td class="mdescRight">Sends a synchronous change message to all the registered listeners.  <a href="#a5d16cd01b9af4bacb1716530af17f77b">More...</a><br /></td></tr>
<tr class="separator:a5d16cd01b9af4bacb1716530af17f77b"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a78f62ecd57a016f8ba7a6ce55454947d"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classChangeBroadcaster.html#a78f62ecd57a016f8ba7a6ce55454947d">dispatchPendingMessages</a> ()</td></tr>
<tr class="memdesc:a78f62ecd57a016f8ba7a6ce55454947d"><td class="mdescLeft">&#160;</td><td class="mdescRight">If a change message has been sent but not yet dispatched, this will call <a class="el" href="classChangeBroadcaster.html#a5d16cd01b9af4bacb1716530af17f77b" title="Sends a synchronous change message to all the registered listeners. ">sendSynchronousChangeMessage()</a> to make the callback immediately.  <a href="#a78f62ecd57a016f8ba7a6ce55454947d">More...</a><br /></td></tr>
<tr class="separator:a78f62ecd57a016f8ba7a6ce55454947d"><td class="memSeparator" colspan="2">&#160;</td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>Holds a list of ChangeListeners, and sends messages to them when instructed. </p>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="classChangeListener.html" title="Receives change event callbacks that are sent out by a ChangeBroadcaster. ">ChangeListener</a> </dd></dl>
</div><h2 class="groupheader">Constructor &amp; Destructor Documentation</h2>
<a id="a1c8ccfa186a47d58a05e7f1f1576c038"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a1c8ccfa186a47d58a05e7f1f1576c038">&sect;&nbsp;</a></span>ChangeBroadcaster()</h2>

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<p>Creates an <a class="el" href="classChangeBroadcaster.html" title="Holds a list of ChangeListeners, and sends messages to them when instructed. ">ChangeBroadcaster</a>. </p>

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<h2 class="memtitle"><span class="permalink"><a href="#a3b2f8465cc6c09c0583c8bdf56319742">&sect;&nbsp;</a></span>~ChangeBroadcaster()</h2>

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<p>Destructor. </p>

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<h2 class="groupheader">Member Function Documentation</h2>
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<h2 class="memtitle"><span class="permalink"><a href="#ad68416fe79a94cd5c99519bdea6c2a06">&sect;&nbsp;</a></span>addChangeListener()</h2>

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          <td class="memname">void ChangeBroadcaster::addChangeListener </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="classChangeListener.html">ChangeListener</a> *&#160;</td>
          <td class="paramname"><em>listener</em></td><td>)</td>
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<p>Registers a listener to receive change callbacks from this broadcaster. </p>
<p>Trying to add a listener that's already on the list will have no effect. </p>

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<h2 class="memtitle"><span class="permalink"><a href="#ae558a26c795278549a63e342bd5f1650">&sect;&nbsp;</a></span>removeChangeListener()</h2>

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          <td class="memname">void ChangeBroadcaster::removeChangeListener </td>
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          <td class="paramtype"><a class="el" href="classChangeListener.html">ChangeListener</a> *&#160;</td>
          <td class="paramname"><em>listener</em></td><td>)</td>
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<p>Unregisters a listener from the list. </p>
<p>If the listener isn't on the list, this won't have any effect. </p>

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<h2 class="memtitle"><span class="permalink"><a href="#a6b9c150078318d419debc82e6f22ce58">&sect;&nbsp;</a></span>removeAllChangeListeners()</h2>

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<p>Removes all listeners from the list. </p>

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<h2 class="memtitle"><span class="permalink"><a href="#a10f01d1c0a7fde85355321985a682cbd">&sect;&nbsp;</a></span>sendChangeMessage()</h2>

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<p>Causes an asynchronous change message to be sent to all the registered listeners. </p>
<p>The message will be delivered asynchronously by the main message thread, so this method will return immediately. To call the listeners synchronously use <a class="el" href="classChangeBroadcaster.html#a5d16cd01b9af4bacb1716530af17f77b" title="Sends a synchronous change message to all the registered listeners. ">sendSynchronousChangeMessage()</a>. </p>

<p>Referenced by <a class="el" href="classSelectedItemSet.html#ab9120f4e10142aadbeecb2347b0eb62f">SelectedItemSet&lt; SelectableItemType &gt;::changed()</a>.</p>

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<h2 class="memtitle"><span class="permalink"><a href="#a5d16cd01b9af4bacb1716530af17f77b">&sect;&nbsp;</a></span>sendSynchronousChangeMessage()</h2>

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          <td class="memname">void ChangeBroadcaster::sendSynchronousChangeMessage </td>
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<p>Sends a synchronous change message to all the registered listeners. </p>
<p>This will immediately call all the listeners that are registered. For thread-safety reasons, you must only call this method on the main message thread.</p>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="classChangeBroadcaster.html#a78f62ecd57a016f8ba7a6ce55454947d" title="If a change message has been sent but not yet dispatched, this will call sendSynchronousChangeMessage...">dispatchPendingMessages</a> </dd></dl>

<p>Referenced by <a class="el" href="classSelectedItemSet.html#a76ded0d9f2a1d292879462c867c36228">SelectedItemSet&lt; SelectableItemType &gt;::changed()</a>.</p>

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<h2 class="memtitle"><span class="permalink"><a href="#a78f62ecd57a016f8ba7a6ce55454947d">&sect;&nbsp;</a></span>dispatchPendingMessages()</h2>

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          <td class="memname">void ChangeBroadcaster::dispatchPendingMessages </td>
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<p>If a change message has been sent but not yet dispatched, this will call <a class="el" href="classChangeBroadcaster.html#a5d16cd01b9af4bacb1716530af17f77b" title="Sends a synchronous change message to all the registered listeners. ">sendSynchronousChangeMessage()</a> to make the callback immediately. </p>
<p>For thread-safety reasons, you must only call this method on the main message thread. </p>

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<hr/>The documentation for this class was generated from the following file:<ul>
<li><a class="el" href="juce__ChangeBroadcaster_8h.html">juce_ChangeBroadcaster.h</a></li>
</ul>
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