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<td >Qt 5.9</td><td ><a href="qtwidgets-index.html">Qt Widgets</a></td><td ><a href="qtwidgets-module.html">C++ Classes</a></td><td >QSpacerItem</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="#public-functions">Public Functions</a></li>
<li class="level1"><a href="#reimplemented-public-functions">Reimplemented Public Functions</a></li>
<li class="level1"><a href="#details">Detailed Description</a></li>
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<h1 class="title">QSpacerItem Class</h1>
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<p>The <a href="qspaceritem.html">QSpacerItem</a> class provides blank space in a layout. <a href="#details">More...</a></p>
<!-- @@@QSpacerItem -->
<div class="table"><table class="alignedsummary">
<tr><td class="memItemLeft rightAlign topAlign"> Header:</td><td class="memItemRight bottomAlign">   <span class="preprocessor">#include &lt;QSpacerItem&gt;</span>
</td></tr><tr><td class="memItemLeft rightAlign topAlign"> qmake:</td><td class="memItemRight bottomAlign"> QT += widgets</td></tr><tr><td class="memItemLeft rightAlign topAlign"> Inherits:</td><td class="memItemRight bottomAlign"> <a href="qlayoutitem.html">QLayoutItem</a></td></tr></table></div><ul>
<li><a href="qspaceritem-members.html">List of all members, including inherited members</a></li>
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<a name="public-functions"></a>
<h2 id="public-functions">Public Functions</h2>
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<tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qspaceritem.html#QSpacerItem">QSpacerItem</a></b>(int <i>w</i>, int <i>h</i>, QSizePolicy::Policy <i>hPolicy</i> = QSizePolicy::Minimum, QSizePolicy::Policy <i>vPolicy</i> = QSizePolicy::Minimum)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qspaceritem.html#dtor.QSpacerItem">~QSpacerItem</a></b>()</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qspaceritem.html#changeSize">changeSize</a></b>(int <i>w</i>, int <i>h</i>, QSizePolicy::Policy <i>hPolicy</i> = QSizePolicy::Minimum, QSizePolicy::Policy <i>vPolicy</i> = QSizePolicy::Minimum)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> QSizePolicy </td><td class="memItemRight bottomAlign"><b><a href="qspaceritem.html#sizePolicy">sizePolicy</a></b>() const</td></tr>
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<a name="reimplemented-public-functions"></a>
<h2 id="reimplemented-public-functions">Reimplemented Public Functions</h2>
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<tr><td class="memItemLeft rightAlign topAlign"> virtual Qt::Orientations </td><td class="memItemRight bottomAlign"><b><a href="qspaceritem.html#expandingDirections">expandingDirections</a></b>() const override</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> virtual QRect </td><td class="memItemRight bottomAlign"><b><a href="qspaceritem.html#geometry">geometry</a></b>() const override</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> virtual bool </td><td class="memItemRight bottomAlign"><b><a href="qspaceritem.html#isEmpty">isEmpty</a></b>() const override</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> virtual QSize </td><td class="memItemRight bottomAlign"><b><a href="qspaceritem.html#maximumSize">maximumSize</a></b>() const override</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> virtual QSize </td><td class="memItemRight bottomAlign"><b><a href="qspaceritem.html#minimumSize">minimumSize</a></b>() const override</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> virtual void </td><td class="memItemRight bottomAlign"><b><a href="qspaceritem.html#setGeometry">setGeometry</a></b>(const QRect &amp;<i>r</i>) override</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> virtual QSize </td><td class="memItemRight bottomAlign"><b><a href="qspaceritem.html#sizeHint">sizeHint</a></b>() const override</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> virtual QSpacerItem *</td><td class="memItemRight bottomAlign"><b><a href="qspaceritem.html#spacerItem">spacerItem</a></b>() override</td></tr>
</table></div>
<ul>
<li class="fn">17 public functions inherited from <a href="qlayoutitem.html#public-functions">QLayoutItem</a></li>
</ul>
<a name="details"></a>
<!-- $$$QSpacerItem-description -->
<div class="descr">
<h2 id="details">Detailed Description</h2>
<p>The <a href="qspaceritem.html">QSpacerItem</a> class provides blank space in a layout.</p>
<p>Normally, you don't need to use this class directly. Qt's built-in layout managers provide the following functions for manipulating empty space in layouts:</p>
<div class="table"><table class="generic">
 <thead><tr class="qt-style"><th >Class</th><th >Functions</th></tr></thead>
<tr valign="top" class="odd"><td ><a href="qhboxlayout.html">QHBoxLayout</a></td><td ><a href="qboxlayout.html#addSpacing">addSpacing()</a>, <a href="qboxlayout.html#addStretch">addStretch()</a>, <a href="qboxlayout.html#insertSpacing">insertSpacing()</a>, <a href="qboxlayout.html#insertStretch">insertStretch()</a></td></tr>
<tr valign="top" class="even"><td ><a href="qgridlayout.html">QGridLayout</a></td><td ><a href="qgridlayout.html#setRowMinimumHeight">setRowMinimumHeight()</a>, <a href="qgridlayout.html#setRowStretch">setRowStretch()</a>, <a href="qgridlayout.html#setColumnMinimumWidth">setColumnMinimumWidth()</a>, <a href="qgridlayout.html#setColumnStretch">setColumnStretch()</a></td></tr>
</table></div>
</div>
<p><b>See also </b><a href="qlayout.html">QLayout</a>, <a href="qwidgetitem.html">QWidgetItem</a>, and <a href="qlayoutitem.html#spacerItem">QLayoutItem::spacerItem</a>().</p>
<!-- @@@QSpacerItem -->
<div class="func">
<h2>Member Function Documentation</h2>
<!-- $$$QSpacerItem[overload1]$$$QSpacerItemintintQSizePolicy::PolicyQSizePolicy::Policy -->
<h3 class="fn" id="QSpacerItem"><a name="QSpacerItem"></a>QSpacerItem::<span class="name">QSpacerItem</span>(<span class="type">int</span> <i>w</i>, <span class="type">int</span> <i>h</i>, <span class="type"><a href="qsizepolicy.html#Policy-enum">QSizePolicy::Policy</a></span> <i>hPolicy</i> = QSizePolicy::Minimum, <span class="type"><a href="qsizepolicy.html#Policy-enum">QSizePolicy::Policy</a></span> <i>vPolicy</i> = QSizePolicy::Minimum)</h3>
<p>Constructs a spacer item with preferred width <i>w</i>, preferred height <i>h</i>, horizontal size policy <i>hPolicy</i> and vertical size policy <i>vPolicy</i>.</p>
<p>The default values provide a gap that is able to stretch if nothing else wants the space.</p>
<!-- @@@QSpacerItem -->
<!-- $$$~QSpacerItem[overload1]$$$~QSpacerItem -->
<h3 class="fn" id="dtor.QSpacerItem"><a name="dtor.QSpacerItem"></a>QSpacerItem::<span class="name">~QSpacerItem</span>()</h3>
<p>Destructor.</p>
<!-- @@@~QSpacerItem -->
<!-- $$$changeSize[overload1]$$$changeSizeintintQSizePolicy::PolicyQSizePolicy::Policy -->
<h3 class="fn" id="changeSize"><a name="changeSize"></a><span class="type">void</span> QSpacerItem::<span class="name">changeSize</span>(<span class="type">int</span> <i>w</i>, <span class="type">int</span> <i>h</i>, <span class="type"><a href="qsizepolicy.html#Policy-enum">QSizePolicy::Policy</a></span> <i>hPolicy</i> = QSizePolicy::Minimum, <span class="type"><a href="qsizepolicy.html#Policy-enum">QSizePolicy::Policy</a></span> <i>vPolicy</i> = QSizePolicy::Minimum)</h3>
<p>Changes this spacer item to have preferred width <i>w</i>, preferred height <i>h</i>, horizontal size policy <i>hPolicy</i> and vertical size policy <i>vPolicy</i>.</p>
<p>The default values provide a gap that is able to stretch if nothing else wants the space.</p>
<p>Note that if changeSize() is called after the spacer item has been added to a layout, it is necessary to invalidate the layout in order for the spacer item's new size to take effect.</p>
<p><b>See also </b><a href="qlayoutitem.html#invalidate">QSpacerItem::invalidate</a>().</p>
<!-- @@@changeSize -->
<!-- $$$expandingDirections[overload1]$$$expandingDirections -->
<h3 class="fn" id="expandingDirections"><a name="expandingDirections"></a><code>[override virtual] </code><span class="type"><a href="../qtcore/qt.html#Orientation-enum">Qt::Orientations</a></span> QSpacerItem::<span class="name">expandingDirections</span>() const</h3>
<p>Reimplemented from <a href="qlayoutitem.html#expandingDirections">QLayoutItem::expandingDirections</a>().</p>
<!-- @@@expandingDirections -->
<!-- $$$geometry[overload1]$$$geometry -->
<h3 class="fn" id="geometry"><a name="geometry"></a><code>[override virtual] </code><span class="type"><a href="../qtcore/qrect.html">QRect</a></span> QSpacerItem::<span class="name">geometry</span>() const</h3>
<p>Reimplemented from <a href="qlayoutitem.html#geometry">QLayoutItem::geometry</a>().</p>
<p><b>See also </b><a href="qspaceritem.html#setGeometry">setGeometry</a>().</p>
<!-- @@@geometry -->
<!-- $$$isEmpty[overload1]$$$isEmpty -->
<h3 class="fn" id="isEmpty"><a name="isEmpty"></a><code>[override virtual] </code><span class="type">bool</span> QSpacerItem::<span class="name">isEmpty</span>() const</h3>
<p>Reimplemented from <a href="qlayoutitem.html#isEmpty">QLayoutItem::isEmpty</a>().</p>
<p>Returns <code>true</code>.</p>
<!-- @@@isEmpty -->
<!-- $$$maximumSize[overload1]$$$maximumSize -->
<h3 class="fn" id="maximumSize"><a name="maximumSize"></a><code>[override virtual] </code><span class="type"><a href="../qtcore/qsize.html">QSize</a></span> QSpacerItem::<span class="name">maximumSize</span>() const</h3>
<p>Reimplemented from <a href="qlayoutitem.html#maximumSize">QLayoutItem::maximumSize</a>().</p>
<!-- @@@maximumSize -->
<!-- $$$minimumSize[overload1]$$$minimumSize -->
<h3 class="fn" id="minimumSize"><a name="minimumSize"></a><code>[override virtual] </code><span class="type"><a href="../qtcore/qsize.html">QSize</a></span> QSpacerItem::<span class="name">minimumSize</span>() const</h3>
<p>Reimplemented from <a href="qlayoutitem.html#minimumSize">QLayoutItem::minimumSize</a>().</p>
<!-- @@@minimumSize -->
<!-- $$$setGeometry[overload1]$$$setGeometryconstQRect& -->
<h3 class="fn" id="setGeometry"><a name="setGeometry"></a><code>[override virtual] </code><span class="type">void</span> QSpacerItem::<span class="name">setGeometry</span>(const <span class="type"><a href="../qtcore/qrect.html">QRect</a></span> &amp;<i>r</i>)</h3>
<p>Reimplemented from <a href="qlayoutitem.html#setGeometry">QLayoutItem::setGeometry</a>().</p>
<p><b>See also </b><a href="qspaceritem.html#geometry">geometry</a>().</p>
<!-- @@@setGeometry -->
<!-- $$$sizeHint[overload1]$$$sizeHint -->
<h3 class="fn" id="sizeHint"><a name="sizeHint"></a><code>[override virtual] </code><span class="type"><a href="../qtcore/qsize.html">QSize</a></span> QSpacerItem::<span class="name">sizeHint</span>() const</h3>
<p>Reimplemented from <a href="qlayoutitem.html#sizeHint">QLayoutItem::sizeHint</a>().</p>
<!-- @@@sizeHint -->
<!-- $$$sizePolicy[overload1]$$$sizePolicy -->
<h3 class="fn" id="sizePolicy"><a name="sizePolicy"></a><span class="type"><a href="qsizepolicy.html">QSizePolicy</a></span> QSpacerItem::<span class="name">sizePolicy</span>() const</h3>
<p>Returns the size policy of this item.</p>
<p>This function was introduced in  Qt 5.5.</p>
<!-- @@@sizePolicy -->
<!-- $$$spacerItem[overload1]$$$spacerItem -->
<h3 class="fn" id="spacerItem"><a name="spacerItem"></a><code>[override virtual] </code><span class="type"><a href="qspaceritem.html#QSpacerItem">QSpacerItem</a></span> *QSpacerItem::<span class="name">spacerItem</span>()</h3>
<p>Reimplemented from <a href="qlayoutitem.html#spacerItem">QLayoutItem::spacerItem</a>().</p>
<p>Returns a pointer to this object.</p>
<!-- @@@spacerItem -->
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