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<li class="level1"><a href="#properties">Properties</a></li>
<li class="level1"><a href="#public-functions">Public Functions</a></li>
<li class="level1"><a href="#signals">Signals</a></li>
<li class="level1"><a href="#details">Detailed Description</a></li>
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<h1 class="title">QGraphicsScale Class Reference</h1>
<!-- $$$QGraphicsScale-brief -->
<p>The QGraphicsScale class provides a scale transformation. <a href="#details">More...</a></p>
<!-- @@@QGraphicsScale -->
<pre class="cpp"> <span class="preprocessor">#include <QGraphicsScale></span></pre><p><b>Inherits: </b><a href="qgraphicstransform.html">QGraphicsTransform</a>.</p>
<p>This class was introduced in Qt 4.6.</p>
<ul>
<li><a href="qgraphicsscale-members.html">List of all members, including inherited members</a></li>
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<a name="properties"></a>
<h2>Properties</h2>
<ul>
<li class="fn"><b><a href="qgraphicsscale.html#origin-prop">origin</a></b> : QVector3D</li>
<li class="fn"><b><a href="qgraphicsscale.html#xScale-prop">xScale</a></b> : qreal</li>
<li class="fn"><b><a href="qgraphicsscale.html#yScale-prop">yScale</a></b> : qreal</li>
<li class="fn"><b><a href="qgraphicsscale.html#zScale-prop">zScale</a></b> : qreal</li>
</ul>
<ul>
<li class="fn">1 property inherited from <a href="qobject.html#properties">QObject</a></li>
</ul>
<a name="public-functions"></a>
<h2>Public Functions</h2>
<table class="alignedsummary">
<tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qgraphicsscale.html#QGraphicsScale">QGraphicsScale</a></b> ( QObject * <i>parent</i> = 0 )</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qgraphicsscale.html#dtor.QGraphicsScale">~QGraphicsScale</a></b> ()</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> QVector3D </td><td class="memItemRight bottomAlign"><b><a href="qgraphicsscale.html#origin-prop">origin</a></b> () const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qgraphicsscale.html#origin-prop">setOrigin</a></b> ( const QVector3D & <i>point</i> )</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qgraphicsscale.html#xScale-prop">setXScale</a></b> ( qreal )</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qgraphicsscale.html#yScale-prop">setYScale</a></b> ( qreal )</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qgraphicsscale.html#zScale-prop">setZScale</a></b> ( qreal )</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> qreal </td><td class="memItemRight bottomAlign"><b><a href="qgraphicsscale.html#xScale-prop">xScale</a></b> () const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> qreal </td><td class="memItemRight bottomAlign"><b><a href="qgraphicsscale.html#yScale-prop">yScale</a></b> () const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> qreal </td><td class="memItemRight bottomAlign"><b><a href="qgraphicsscale.html#zScale-prop">zScale</a></b> () const</td></tr>
</table>
<a name="reimplemented-public-functions"></a>
<h2>Reimplemented Public Functions</h2>
<table class="alignedsummary">
<tr><td class="memItemLeft rightAlign topAlign"> virtual void </td><td class="memItemRight bottomAlign"><b><a href="qgraphicsscale.html#applyTo">applyTo</a></b> ( QMatrix4x4 * <i>matrix</i> ) const</td></tr>
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<ul>
<li class="fn">1 public function inherited from <a href="qgraphicstransform.html#public-functions">QGraphicsTransform</a></li>
<li class="fn">29 public functions inherited from <a href="qobject.html#public-functions">QObject</a></li>
</ul>
<a name="signals"></a>
<h2>Signals</h2>
<table class="alignedsummary">
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qgraphicsscale.html#originChanged">originChanged</a></b> ()</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qgraphicsscale.html#scaleChanged">scaleChanged</a></b> ()</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qgraphicsscale.html#xScaleChanged">xScaleChanged</a></b> ()</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qgraphicsscale.html#yScaleChanged">yScaleChanged</a></b> ()</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qgraphicsscale.html#zScaleChanged">zScaleChanged</a></b> ()</td></tr>
</table>
<ul>
<li class="fn">1 signal inherited from <a href="qobject.html#signals">QObject</a></li>
</ul>
<h3>Additional Inherited Members</h3>
<ul>
<li class="fn">1 public slot inherited from <a href="qobject.html#public-slots">QObject</a></li>
<li class="fn">7 static public members inherited from <a href="qobject.html#static-public-members">QObject</a></li>
<li class="fn">8 protected functions inherited from <a href="qobject.html#protected-functions">QObject</a></li>
<li class="fn">1 protected slot inherited from <a href="qgraphicstransform.html#protected-slots">QGraphicsTransform</a></li>
</ul>
<a name="details"></a>
<!-- $$$QGraphicsScale-description -->
<div class="descr">
<h2>Detailed Description</h2>
<p>The QGraphicsScale class provides a scale transformation.</p>
<p><a href="qgraphicsscene.html">QGraphicsScene</a> provides certain parameters to help control how the scale should be applied.</p>
<p>The origin is the point that the item is scaled from (i.e., it stays fixed relative to the parent as the rest of the item grows). By default the origin is <a href="qpointf.html">QPointF</a>(0, 0).</p>
<p>The parameters <a href="qgraphicsscale.html#xScale-prop">xScale</a>, <a href="qgraphicsscale.html#yScale-prop">yScale</a>, and <a href="qgraphicsscale.html#zScale-prop">zScale</a> describe the scale factors to apply in horizontal, vertical, and depth directions. They can take on any value, including 0 (to collapse the item to a point) or negative value. A negative <a href="qgraphicsscale.html#xScale-prop">xScale</a> value will mirror the item horizontally. A negative <a href="qgraphicsscale.html#yScale-prop">yScale</a> value will flip the item vertically. A negative <a href="qgraphicsscale.html#zScale-prop">zScale</a> will flip the item end for end.</p>
</div>
<p><b>See also </b><a href="qgraphicstransform.html">QGraphicsTransform</a>, <a href="qgraphicsitem.html#setScale">QGraphicsItem::setScale</a>(), and <a href="qtransform.html#scale">QTransform::scale</a>().</p>
<!-- @@@QGraphicsScale -->
<div class="prop">
<h2>Property Documentation</h2>
<!-- $$$origin-prop$$$origin$$$setOriginconstQVector3D&$$$originChanged -->
<h3 class="fn"><a name="origin-prop"></a><span class="name">origin</span> : <span class="type"><a href="qvector3d.html">QVector3D</a></span></h3>
<p>This property holds the origin of the scale in 3D space.</p>
<p>All scaling will be done relative to this point (i.e., this point will stay fixed, relative to the parent, when the item is scaled).</p>
<p><b>Access functions:</b></p>
<table class="alignedsummary">
<tr><td class="memItemLeft topAlign rightAlign"> QVector3D </td><td class="memItemRight bottomAlign"><span class="name"><b>origin</b></span> () const</td></tr>
<tr><td class="memItemLeft topAlign rightAlign"> void </td><td class="memItemRight bottomAlign"><span class="name"><b>setOrigin</b></span> ( const QVector3D & <i>point</i> )</td></tr>
</table>
<p><b>Notifier signal:</b></p>
<table class="alignedsummary">
<tr><td class="memItemLeft topAlign rightAlign"> void </td><td class="memItemRight bottomAlign"><span class="name"><b><a href="qgraphicsscale.html#originChanged">originChanged</a></b></span> ()</td></tr>
</table>
<p><b>See also </b><a href="qgraphicsscale.html#xScale-prop">xScale</a>, <a href="qgraphicsscale.html#yScale-prop">yScale</a>, and <a href="qgraphicsscale.html#zScale-prop">zScale</a>.</p>
<!-- @@@origin -->
<!-- $$$xScale-prop$$$xScale$$$setXScaleqreal$$$xScaleChanged -->
<h3 class="fn"><a name="xScale-prop"></a><span class="name">xScale</span> : <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span></h3>
<p>This property holds the horizontal scale factor.</p>
<p>The scale factor can be any real number; the default value is 1.0. If you set the factor to 0.0, the item will be collapsed to a single point. If you provide a negative value, the item will be mirrored horizontally around its origin.</p>
<p><b>Access functions:</b></p>
<table class="alignedsummary">
<tr><td class="memItemLeft topAlign rightAlign"> qreal </td><td class="memItemRight bottomAlign"><span class="name"><b>xScale</b></span> () const</td></tr>
<tr><td class="memItemLeft topAlign rightAlign"> void </td><td class="memItemRight bottomAlign"><span class="name"><b>setXScale</b></span> ( qreal )</td></tr>
</table>
<p><b>Notifier signal:</b></p>
<table class="alignedsummary">
<tr><td class="memItemLeft topAlign rightAlign"> void </td><td class="memItemRight bottomAlign"><span class="name"><b><a href="qgraphicsscale.html#xScaleChanged">xScaleChanged</a></b></span> ()</td></tr>
</table>
<p><b>See also </b><a href="qgraphicsscale.html#yScale-prop">yScale</a>, <a href="qgraphicsscale.html#zScale-prop">zScale</a>, and <a href="qgraphicsscale.html#origin-prop">origin</a>.</p>
<!-- @@@xScale -->
<!-- $$$yScale-prop$$$yScale$$$setYScaleqreal$$$yScaleChanged -->
<h3 class="fn"><a name="yScale-prop"></a><span class="name">yScale</span> : <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span></h3>
<p>This property holds the vertical scale factor.</p>
<p>The scale factor can be any real number; the default value is 1.0. If you set the factor to 0.0, the item will be collapsed to a single point. If you provide a negative value, the item will be flipped vertically around its origin.</p>
<p><b>Access functions:</b></p>
<table class="alignedsummary">
<tr><td class="memItemLeft topAlign rightAlign"> qreal </td><td class="memItemRight bottomAlign"><span class="name"><b>yScale</b></span> () const</td></tr>
<tr><td class="memItemLeft topAlign rightAlign"> void </td><td class="memItemRight bottomAlign"><span class="name"><b>setYScale</b></span> ( qreal )</td></tr>
</table>
<p><b>Notifier signal:</b></p>
<table class="alignedsummary">
<tr><td class="memItemLeft topAlign rightAlign"> void </td><td class="memItemRight bottomAlign"><span class="name"><b><a href="qgraphicsscale.html#yScaleChanged">yScaleChanged</a></b></span> ()</td></tr>
</table>
<p><b>See also </b><a href="qgraphicsscale.html#xScale-prop">xScale</a>, <a href="qgraphicsscale.html#zScale-prop">zScale</a>, and <a href="qgraphicsscale.html#origin-prop">origin</a>.</p>
<!-- @@@yScale -->
<!-- $$$zScale-prop$$$zScale$$$setZScaleqreal$$$zScaleChanged -->
<h3 class="fn"><a name="zScale-prop"></a><span class="name">zScale</span> : <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span></h3>
<p>This property holds the depth scale factor.</p>
<p>The scale factor can be any real number; the default value is 1.0. If you set the factor to 0.0, the item will be collapsed to a single point. If you provide a negative value, the item will be flipped end for end around its origin.</p>
<p><b>Access functions:</b></p>
<table class="alignedsummary">
<tr><td class="memItemLeft topAlign rightAlign"> qreal </td><td class="memItemRight bottomAlign"><span class="name"><b>zScale</b></span> () const</td></tr>
<tr><td class="memItemLeft topAlign rightAlign"> void </td><td class="memItemRight bottomAlign"><span class="name"><b>setZScale</b></span> ( qreal )</td></tr>
</table>
<p><b>Notifier signal:</b></p>
<table class="alignedsummary">
<tr><td class="memItemLeft topAlign rightAlign"> void </td><td class="memItemRight bottomAlign"><span class="name"><b><a href="qgraphicsscale.html#zScaleChanged">zScaleChanged</a></b></span> ()</td></tr>
</table>
<p><b>See also </b><a href="qgraphicsscale.html#xScale-prop">xScale</a>, <a href="qgraphicsscale.html#yScale-prop">yScale</a>, and <a href="qgraphicsscale.html#origin-prop">origin</a>.</p>
<!-- @@@zScale -->
</div>
<div class="func">
<h2>Member Function Documentation</h2>
<!-- $$$QGraphicsScale[overload1]$$$QGraphicsScaleQObject* -->
<h3 class="fn"><a name="QGraphicsScale"></a>QGraphicsScale::<span class="name">QGraphicsScale</span> ( <span class="type"><a href="qobject.html">QObject</a></span> * <i>parent</i> = 0 )</h3>
<p>Constructs an empty <a href="qgraphicsscale.html">QGraphicsScale</a> object with the given <i>parent</i>.</p>
<!-- @@@QGraphicsScale -->
<!-- $$$~QGraphicsScale[overload1]$$$~QGraphicsScale -->
<h3 class="fn"><a name="dtor.QGraphicsScale"></a>QGraphicsScale::<span class="name">~QGraphicsScale</span> ()</h3>
<p>Destroys the graphics scale.</p>
<!-- @@@~QGraphicsScale -->
<!-- $$$applyTo[overload1]$$$applyToQMatrix4x4* -->
<h3 class="fn"><a name="applyTo"></a><span class="type">void</span> QGraphicsScale::<span class="name">applyTo</span> ( <span class="type"><a href="qmatrix4x4.html">QMatrix4x4</a></span> * <i>matrix</i> ) const<tt> [virtual]</tt></h3>
<p>Reimplemented from <a href="qgraphicstransform.html#applyTo">QGraphicsTransform::applyTo</a>().</p>
<!-- @@@applyTo -->
<!-- $$$originChanged[overload1]$$$originChanged -->
<h3 class="fn"><a name="originChanged"></a><span class="type">void</span> QGraphicsScale::<span class="name">originChanged</span> ()<tt> [signal]</tt></h3>
<p><a href="qgraphicsscale.html">QGraphicsScale</a> emits this signal when its origin changes.</p>
<p><b>See also </b><a href="qgraphicsscale.html#origin-prop">QGraphicsScale::origin</a>.</p>
<!-- @@@originChanged -->
<!-- $$$scaleChanged[overload1]$$$scaleChanged -->
<h3 class="fn"><a name="scaleChanged"></a><span class="type">void</span> QGraphicsScale::<span class="name">scaleChanged</span> ()<tt> [signal]</tt></h3>
<p>This signal is emitted whenever the <a href="qgraphicsscale.html#xScale-prop">xScale</a>, <a href="qgraphicsscale.html#yScale-prop">yScale</a>, or <a href="qgraphicsscale.html#zScale-prop">zScale</a> of the object changes.</p>
<p><b>See also </b><a href="qgraphicsscale.html#xScale-prop">QGraphicsScale::xScale</a>, <a href="qgraphicsscale.html#yScale-prop">QGraphicsScale::yScale</a>, and <a href="qgraphicsscale.html#zScale-prop">QGraphicsScale::zScale</a>.</p>
<!-- @@@scaleChanged -->
<!-- $$$xScaleChanged[overload1]$$$xScaleChanged -->
<h3 class="fn"><a name="xScaleChanged"></a><span class="type">void</span> QGraphicsScale::<span class="name">xScaleChanged</span> ()<tt> [signal]</tt></h3>
<p>This signal is emitted whenever the <a href="qgraphicsscale.html#xScale-prop">xScale</a> property changes.</p>
<p>This function was introduced in Qt 4.7.</p>
<!-- @@@xScaleChanged -->
<!-- $$$yScaleChanged[overload1]$$$yScaleChanged -->
<h3 class="fn"><a name="yScaleChanged"></a><span class="type">void</span> QGraphicsScale::<span class="name">yScaleChanged</span> ()<tt> [signal]</tt></h3>
<p>This signal is emitted whenever the <a href="qgraphicsscale.html#yScale-prop">yScale</a> property changes.</p>
<p>This function was introduced in Qt 4.7.</p>
<!-- @@@yScaleChanged -->
<!-- $$$zScaleChanged[overload1]$$$zScaleChanged -->
<h3 class="fn"><a name="zScaleChanged"></a><span class="type">void</span> QGraphicsScale::<span class="name">zScaleChanged</span> ()<tt> [signal]</tt></h3>
<p>This signal is emitted whenever the <a href="qgraphicsscale.html#zScale-prop">zScale</a> property changes.</p>
<p>This function was introduced in Qt 4.7.</p>
<!-- @@@zScaleChanged -->
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