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<td >Qt 5.9</td><td ><a href="qtgui-index.html">Qt GUI</a></td><td ><a href="qtgui-module.html">C++ Classes</a></td><td >QTextBlockGroup</td></tr></table><table class="buildversion"><tr>
<td id="buildversion" width="100%" align="right">Qt 5.9.4 Reference Documentation</td>
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<h3><a name="toc">Contents</a></h3>
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<li class="level1"><a href="#protected-functions">Protected Functions</a></li>
<li class="level1"><a href="#details">Detailed Description</a></li>
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<h1 class="title">QTextBlockGroup Class</h1>
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<p>The <a href="qtextblockgroup.html">QTextBlockGroup</a> class provides a container for text blocks within a <a href="qtextdocument.html">QTextDocument</a>. <a href="#details">More...</a></p>
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<tr><td class="memItemLeft rightAlign topAlign"> Header:</td><td class="memItemRight bottomAlign"> <span class="preprocessor">#include <QTextBlockGroup></span>
</td></tr><tr><td class="memItemLeft rightAlign topAlign"> qmake:</td><td class="memItemRight bottomAlign"> QT += gui</td></tr><tr><td class="memItemLeft rightAlign topAlign"> Inherits:</td><td class="memItemRight bottomAlign"> <a href="qtextobject.html">QTextObject</a></td></tr><tr><td class="memItemLeft rightAlign topAlign"> Inherited By:</td><td class="memItemRight bottomAlign"> <p><a href="qtextlist.html">QTextList</a></p>
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<li><a href="qtextblockgroup-members.html">List of all members, including inherited members</a></li>
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<p><b>Note:</b> All functions in this class are reentrant.</p>
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<h2 id="protected-functions">Protected Functions</h2>
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<tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qtextblockgroup.html#QTextBlockGroup">QTextBlockGroup</a></b>(QTextDocument *<i>document</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qtextblockgroup.html#dtor.QTextBlockGroup">~QTextBlockGroup</a></b>()</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> virtual void </td><td class="memItemRight bottomAlign"><b><a href="qtextblockgroup.html#blockFormatChanged">blockFormatChanged</a></b>(const QTextBlock &<i>block</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> virtual void </td><td class="memItemRight bottomAlign"><b><a href="qtextblockgroup.html#blockInserted">blockInserted</a></b>(const QTextBlock &<i>block</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> QList<QTextBlock> </td><td class="memItemRight bottomAlign"><b><a href="qtextblockgroup.html#blockList">blockList</a></b>() const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> virtual void </td><td class="memItemRight bottomAlign"><b><a href="qtextblockgroup.html#blockRemoved">blockRemoved</a></b>(const QTextBlock &<i>block</i>)</td></tr>
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<li class="fn">1 protected function inherited from <a href="qtextobject.html#protected-functions">QTextObject</a></li>
<li class="fn">9 protected functions inherited from <a href="../qtcore/qobject.html#protected-functions">QObject</a></li>
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<h3>Additional Inherited Members</h3>
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<li class="fn">1 property inherited from <a href="../qtcore/qobject.html#properties">QObject</a></li>
<li class="fn">4 public functions inherited from <a href="qtextobject.html#public-functions">QTextObject</a></li>
<li class="fn">32 public functions inherited from <a href="../qtcore/qobject.html#public-functions">QObject</a></li>
<li class="fn">1 public slot inherited from <a href="../qtcore/qobject.html#public-slots">QObject</a></li>
<li class="fn">2 signals inherited from <a href="../qtcore/qobject.html#signals">QObject</a></li>
<li class="fn">1 public variable inherited from <a href="../qtcore/qobject.html#public-variables">QObject</a></li>
<li class="fn">10 static public members inherited from <a href="../qtcore/qobject.html#static-public-members">QObject</a></li>
<li class="fn">2 protected variables inherited from <a href="../qtcore/qobject.html#protected-variables">QObject</a></li>
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<h2 id="details">Detailed Description</h2>
<p>The <a href="qtextblockgroup.html">QTextBlockGroup</a> class provides a container for text blocks within a <a href="qtextdocument.html">QTextDocument</a>.</p>
<p>Block groups can be used to organize blocks of text within a document. They maintain an up-to-date list of the text blocks that belong to them, even when text blocks are being edited.</p>
<p>Each group has a parent document which is specified when the group is constructed.</p>
<p>Text blocks can be inserted into a group with <a href="qtextblockgroup.html#blockInserted">blockInserted</a>(), and removed with <a href="qtextblockgroup.html#blockRemoved">blockRemoved</a>(). If a block's format is changed, <a href="qtextblockgroup.html#blockFormatChanged">blockFormatChanged</a>() is called.</p>
<p>The list of blocks in the group is returned by <a href="qtextblockgroup.html#blockList">blockList</a>(). Note that the blocks in the list are not necessarily adjacent elements in the document; for example, the top-level items in a multi-level list will be separated by the items in lower levels of the list.</p>
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<p><b>See also </b><a href="qtextblock.html">QTextBlock</a> and <a href="qtextdocument.html">QTextDocument</a>.</p>
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<h2>Member Function Documentation</h2>
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<h3 class="fn" id="QTextBlockGroup"><a name="QTextBlockGroup"></a><code>[protected] </code>QTextBlockGroup::<span class="name">QTextBlockGroup</span>(<span class="type"><a href="qtextdocument.html">QTextDocument</a></span> *<i>document</i>)</h3>
<p>Creates a new new block group for the given <i>document</i>.</p>
<p><b>Warning:</b> This function should only be called from <a href="qtextdocument.html#createObject">QTextDocument::createObject</a>().</p>
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<h3 class="fn" id="dtor.QTextBlockGroup"><a name="dtor.QTextBlockGroup"></a><code>[protected] </code>QTextBlockGroup::<span class="name">~QTextBlockGroup</span>()</h3>
<p>Destroys this block group; the blocks are not deleted, they simply don't belong to this block anymore.</p>
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<h3 class="fn" id="blockFormatChanged"><a name="blockFormatChanged"></a><code>[virtual protected] </code><span class="type">void</span> QTextBlockGroup::<span class="name">blockFormatChanged</span>(const <span class="type"><a href="qtextblock.html">QTextBlock</a></span> &<i>block</i>)</h3>
<p>This function is called whenever the specified <i>block</i> of text is changed. The text block is a member of this group.</p>
<p>The base class implementation does nothing.</p>
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<h3 class="fn" id="blockInserted"><a name="blockInserted"></a><code>[virtual protected] </code><span class="type">void</span> QTextBlockGroup::<span class="name">blockInserted</span>(const <span class="type"><a href="qtextblock.html">QTextBlock</a></span> &<i>block</i>)</h3>
<p>Appends the given <i>block</i> to the end of the group.</p>
<p><b>Warning:</b> If you reimplement this function you must call the base class implementation.</p>
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<h3 class="fn" id="blockList"><a name="blockList"></a><code>[protected] </code><span class="type"><a href="../qtcore/qlist.html">QList</a></span><<span class="type"><a href="qtextblock.html">QTextBlock</a></span>> QTextBlockGroup::<span class="name">blockList</span>() const</h3>
<p>Returns a (possibly empty) list of all the blocks that are part of the block group.</p>
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<h3 class="fn" id="blockRemoved"><a name="blockRemoved"></a><code>[virtual protected] </code><span class="type">void</span> QTextBlockGroup::<span class="name">blockRemoved</span>(const <span class="type"><a href="qtextblock.html">QTextBlock</a></span> &<i>block</i>)</h3>
<p>Removes the given <i>block</i> from the group; the block itself is not deleted, it simply isn't a member of this group anymore.</p>
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