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<li>Qt 5.2</li>
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<li><a href="qtquick-qmltypereference.html">QML Types</a></li>
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Qt 5.2.1 Reference Documentation</li>
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<h3><a name="toc">Contents</a></h3>
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<li class="level1"><a href="#properties">Properties</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">PinchArea</h1>
<span class="subtitle"></span>
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<p>Enables simple pinch gesture handling <a href="#details">More...</a></p>
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<table class="alignedsummary">
<tr><td class="memItemLeft rightAlign topAlign"> Import Statement:</td><td class="memItemRight bottomAlign"> </b><tt>import QtQuick 2.2</tt></td></tr><tr><td class="memItemLeft rightAlign topAlign"> Inherits:</td><td class="memItemRight bottomAlign"> <p><a href="qml-qtquick-item.html">Item</a></p>
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<li><a href="qml-qtquick-pincharea-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><b><a href="qml-qtquick-pincharea.html#enabled-prop">enabled</a></b></b> : bool</li>
<li class="fn"><b><b><a href="qml-qtquick-pincharea.html#pinch-prop">pinch</a></b></b><ul>
<li class="fn"><b><b><a href="qml-qtquick-pincharea.html#pinch.target-prop">pinch.target</a></b></b> : Item</li>
<li class="fn"><b><b><a href="qml-qtquick-pincharea.html#pinch.active-prop">pinch.active</a></b></b> : bool</li>
<li class="fn"><b><b><a href="qml-qtquick-pincharea.html#pinch.minimumScale-prop">pinch.minimumScale</a></b></b> : real</li>
<li class="fn"><b><b><a href="qml-qtquick-pincharea.html#pinch.maximumScale-prop">pinch.maximumScale</a></b></b> : real</li>
<li class="fn"><b><b><a href="qml-qtquick-pincharea.html#pinch.minimumRotation-prop">pinch.minimumRotation</a></b></b> : real</li>
<li class="fn"><b><b><a href="qml-qtquick-pincharea.html#pinch.maximumRotation-prop">pinch.maximumRotation</a></b></b> : real</li>
<li class="fn"><b><b><a href="qml-qtquick-pincharea.html#pinch.dragAxis-prop">pinch.dragAxis</a></b></b> : enumeration</li>
<li class="fn"><b><b><a href="qml-qtquick-pincharea.html#pinch.minimumX-prop">pinch.minimumX</a></b></b> : real</li>
<li class="fn"><b><b><a href="qml-qtquick-pincharea.html#pinch.maximumX-prop">pinch.maximumX</a></b></b> : real</li>
<li class="fn"><b><b><a href="qml-qtquick-pincharea.html#pinch.minimumY-prop">pinch.minimumY</a></b></b> : real</li>
<li class="fn"><b><b><a href="qml-qtquick-pincharea.html#pinch.maximumY-prop">pinch.maximumY</a></b></b> : real</li>
</ul>
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<a name="signals"></a>
<h2>Signals</h2>
<ul>
<li class="fn"><b><b><a href="qml-qtquick-pincharea.html#onPinchFinished-signal">onPinchFinished</a></b></b>()</li>
<li class="fn"><b><b><a href="qml-qtquick-pincharea.html#onPinchStarted-signal">onPinchStarted</a></b></b>()</li>
<li class="fn"><b><b><a href="qml-qtquick-pincharea.html#onPinchUpdated-signal">onPinchUpdated</a></b></b>()</li>
</ul>
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<a name="details"></a>
<h2>Detailed Description</h2>
<p><b>The PinchArea type was added in <a href="qtquick-module.html">QtQuick</a> 1.1</b></p>
<p>A PinchArea is an invisible item that is typically used in conjunction with a visible item in order to provide pinch gesture handling for that item.</p>
<p>The <a href="qml-qtquick-pincharea.html#enabled-prop">enabled</a> property is used to enable and disable pinch handling for the proxied item. When disabled, the pinch area becomes transparent to mouse/touch events.</p>
<p>PinchArea can be used in two ways:</p>
<ul>
<li>setting a <tt>pinch.target</tt> to provide automatic interaction with an item</li>
<li>using the <a href="qml-qtquick-pincharea.html#onPinchStarted-signal">onPinchStarted</a>, <a href="qml-qtquick-pincharea.html#onPinchUpdated-signal">onPinchUpdated</a> and <a href="qml-qtquick-pincharea.html#onPinchFinished-signal">onPinchFinished</a> handlers</li>
</ul>
<p><b>See also </b><a href="qml-qtquick-pinchevent.html">PinchEvent</a>.</p>
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<h2>Property Documentation</h2>
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<div class="qmlitem"><div class="qmlproto"><table class="qmlname"><tr valign="top" class="odd"><td class="tblQmlPropNode"><p><a name="enabled-prop"></a><span class="name">enabled</span> : <span class="type">bool</span></p></td></tr></table></div><div class="qmldoc"><p>This property holds whether the item accepts pinch gestures.</p>
<p>This property defaults to true.</p>
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<div class="qmlitem"><div class="qmlproto"><table class="qmlname"><tr valign="top" class="even"><th class="centerAlign"><p><a name="pinch-prop"></a><b>pinch group</b></p></th></tr><tr valign="top" class="odd"><td class="tblQmlPropNode"><p><a name="pinch.target-prop"></a><span class="name">pinch.target</span> : <span class="type"><a href="qml-qtquick-item.html">Item</a></span></p></td></tr><tr valign="top" class="odd"><td class="tblQmlPropNode"><p><a name="pinch.active-prop"></a><span class="name">pinch.active</span> : <span class="type">bool</span></p></td></tr><tr valign="top" class="odd"><td class="tblQmlPropNode"><p><a name="pinch.minimumScale-prop"></a><span class="name">pinch.minimumScale</span> : <span class="type">real</span></p></td></tr><tr valign="top" class="odd"><td class="tblQmlPropNode"><p><a name="pinch.maximumScale-prop"></a><span class="name">pinch.maximumScale</span> : <span class="type">real</span></p></td></tr><tr valign="top" class="odd"><td class="tblQmlPropNode"><p><a name="pinch.minimumRotation-prop"></a><span class="name">pinch.minimumRotation</span> : <span class="type">real</span></p></td></tr><tr valign="top" class="odd"><td class="tblQmlPropNode"><p><a name="pinch.maximumRotation-prop"></a><span class="name">pinch.maximumRotation</span> : <span class="type">real</span></p></td></tr><tr valign="top" class="odd"><td class="tblQmlPropNode"><p><a name="pinch.dragAxis-prop"></a><span class="name">pinch.dragAxis</span> : <span class="type">enumeration</span></p></td></tr><tr valign="top" class="odd"><td class="tblQmlPropNode"><p><a name="pinch.minimumX-prop"></a><span class="name">pinch.minimumX</span> : <span class="type">real</span></p></td></tr><tr valign="top" class="odd"><td class="tblQmlPropNode"><p><a name="pinch.maximumX-prop"></a><span class="name">pinch.maximumX</span> : <span class="type">real</span></p></td></tr><tr valign="top" class="odd"><td class="tblQmlPropNode"><p><a name="pinch.minimumY-prop"></a><span class="name">pinch.minimumY</span> : <span class="type">real</span></p></td></tr><tr valign="top" class="odd"><td class="tblQmlPropNode"><p><a name="pinch.maximumY-prop"></a><span class="name">pinch.maximumY</span> : <span class="type">real</span></p></td></tr></table></div><div class="qmldoc"><p><tt>pinch</tt> provides a convenient way to make an item react to pinch gestures.</p>
<ul>
<li><tt>pinch.target</tt> specifies the id of the item to drag.</li>
<li><tt>pinch.active</tt> specifies if the target item is currently being dragged.</li>
<li><tt>pinch.minimumScale</tt> and <tt>pinch.maximumScale</tt> limit the range of the <a href="qml-qtquick-item.html#scale-prop">Item::scale</a> property.</li>
<li><tt>pinch.minimumRotation</tt> and <tt>pinch.maximumRotation</tt> limit the range of the <a href="qml-qtquick-item.html#rotation-prop">Item::rotation</a> property.</li>
<li><tt>pinch.dragAxis</tt> specifies whether dragging in not allowed (<tt>Pinch.NoDrag</tt>), can be done horizontally (<tt>Pinch.XAxis</tt>), vertically (<tt>Pinch.YAxis</tt>), or both (<tt>Pinch.XAndYAxis</tt>)</li>
<li><tt>pinch.minimum</tt> and <tt>pinch.maximum</tt> limit how far the target can be dragged along the corresponding axes.</li>
</ul>
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<h2>Signal Documentation</h2>
<!-- $$$onPinchFinished -->
<div class="qmlitem"><div class="qmlproto"><table class="qmlname"><tr valign="top" class="odd"><td class="tblQmlFuncNode"><p><a name="onPinchFinished-signal"></a><span class="name">onPinchFinished</span>()</p></td></tr></table></div><div class="qmldoc"><p>This handler is called when the pinch area detects that a pinch gesture has finished.</p>
<p>The <a href="qml-qtquick-pinchevent.html">pinch</a> parameter provides information about the pinch gesture, including the scale, center and angle of the pinch.</p>
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<div class="qmlitem"><div class="qmlproto"><table class="qmlname"><tr valign="top" class="odd"><td class="tblQmlFuncNode"><p><a name="onPinchStarted-signal"></a><span class="name">onPinchStarted</span>()</p></td></tr></table></div><div class="qmldoc"><p>This handler is called when the pinch area detects that a pinch gesture has started.</p>
<p>The <a href="qml-qtquick-pinchevent.html">pinch</a> parameter provides information about the pinch gesture, including the scale, center and angle of the pinch.</p>
<p>To ignore this gesture set the <tt>pinch.accepted</tt> property to false. The gesture will be canceled and no further events will be sent.</p>
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<!-- $$$onPinchUpdated -->
<div class="qmlitem"><div class="qmlproto"><table class="qmlname"><tr valign="top" class="odd"><td class="tblQmlFuncNode"><p><a name="onPinchUpdated-signal"></a><span class="name">onPinchUpdated</span>()</p></td></tr></table></div><div class="qmldoc"><p>This handler is called when the pinch area detects that a pinch gesture has changed.</p>
<p>The <a href="qml-qtquick-pinchevent.html">pinch</a> parameter provides information about the pinch gesture, including the scale, center and angle of the pinch.</p>
</div></div><!-- @@@onPinchUpdated -->
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