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Breadcrumbs go here --> <li><a href="qdeclarativeelements.html">QML Elements</a></li> <li>QML PinchEvent Element</li> </ul> </div> <div class="toolbuttons toolblock"> <ul> <li id="smallA" class="t_button">A</li> <li id="medA" class="t_button active">A</li> <li id="bigA" class="t_button">A</li> <li id="print" class="t_button"><a href="javascript:this.print();"> <span>Print</span></a></li> </ul> </div> </div> <div class="content mainContent"> <div class="toc"> <h3><a name="toc">Contents</a></h3> <ul> <li class="level1"><a href="#properties">Properties</a></li> <li class="level1"><a href="#details">Detailed Description</a></li> </ul> </div> <h1 class="title">QML PinchEvent Element</h1> <span class="subtitle"></span> <!-- $$$PinchEvent-brief --> <p>The PinchEvent object provides information about a pinch event. <a href="#details">More...</a></p> <!-- @@@PinchEvent --> <ul> <li><a href="qml-pinchevent-members.html">List of all members, including inherited members</a></li> </ul> <a name="properties"></a> <h2>Properties</h2> <ul> <li class="fn"><b><b><a href="qml-pinchevent.html#accepted-prop">accepted</a></b></b> : bool</li> <li class="fn"><b><b><a href="qml-pinchevent.html#angle-prop">angle</a></b></b> : real</li> <li class="fn"><b><b><a href="qml-pinchevent.html#center-prop">center</a></b></b> : QPointF</li> <li class="fn"><b><b><a href="qml-pinchevent.html#point1-prop">point1</a></b></b> : QPointF</li> <li class="fn"><b><b><a href="qml-pinchevent.html#point2-prop">point2</a></b></b> : QPointF</li> <li class="fn"><b><b><a href="qml-pinchevent.html#pointCount-prop">pointCount</a></b></b> : int</li> <li class="fn"><b><b><a href="qml-pinchevent.html#previousAngle-prop">previousAngle</a></b></b> : real</li> <li class="fn"><b><b><a href="qml-pinchevent.html#previousCenter-prop">previousCenter</a></b></b> : QPointF</li> <li class="fn"><b><b><a href="qml-pinchevent.html#previousScale-prop">previousScale</a></b></b> : real</li> <li class="fn"><b><b><a href="qml-pinchevent.html#rotation-prop">rotation</a></b></b> : real</li> <li class="fn"><b><b><a href="qml-pinchevent.html#scale-prop">scale</a></b></b> : real</li> <li class="fn"><b><b><a href="qml-pinchevent.html#startCenter-prop">startCenter</a></b></b> : QPointF</li> <li class="fn"><b><b><a href="qml-pinchevent.html#startPoint1-prop">startPoint1</a></b></b> : QPointF</li> <li class="fn"><b><b><a href="qml-pinchevent.html#startPoint2-prop">startPoint2</a></b></b> : QPointF</li> </ul> <!-- $$$PinchEvent-description --> <a name="details"></a> <h2>Detailed Description</h2> <p><b>The PinchEvent element was added in QtQuick 1.1</b></p> <p>The <tt>center</tt>, <tt>startCenter</tt>, <tt>previousCenter</tt> properties provide the center position between the two touch points.</p> <p>The <tt>scale</tt> and <tt>previousScale</tt> properties provide the scale factor.</p> <p>The <tt>angle</tt>, <tt>previousAngle</tt> and <tt>rotation</tt> properties provide the angle between the two points and the amount of rotation.</p> <p>The <tt>point1</tt>, <tt>point2</tt>, <tt>startPoint1</tt>, <tt>startPoint2</tt> properties provide the positions of the touch points.</p> <p>The <tt>accepted</tt> property may be set to false in the <tt>onPinchStarted</tt> handler if the gesture should not be handled.</p> <p><b>See also </b><a href="qml-pincharea.html">PinchArea</a>.</p> <!-- @@@PinchEvent --> <h2>Property Documentation</h2> <!-- $$$accepted --> <div class="qmlitem"><div class="qmlproto"><table class="qmlname"><tr valign="top" class="odd"><td class="tblQmlPropNode"><p><a name="accepted-prop"></a><span class="name">accepted</span> : <span class="type"><a href="qml-bool.html">bool</a></span></p></td></tr></table></div><div class="qmldoc"><p>Setting this property to false in the <tt>PinchArea::onPinchStarted</tt> handler will result in no further pinch events being generated, and the gesture ignored.</p> </div></div><!-- @@@accepted --> <br/> <!-- $$$angle --> <div class="qmlitem"><div class="qmlproto"><table class="qmlname"><tr valign="top" class="odd"><td class="tblQmlPropNode"><p><a name="angle-prop"></a><span class="qmlreadonly">read-only</span><span class="name">angle</span> : <span class="type"><a href="qml-real.html">real</a></span></p></td></tr><tr valign="top" class="even"><td class="tblQmlPropNode"><p><a name="previousAngle-prop"></a><span class="qmlreadonly">read-only</span><span class="name">previousAngle</span> : <span class="type"><a href="qml-real.html">real</a></span></p></td></tr><tr valign="top" class="odd"><td class="tblQmlPropNode"><p><a name="rotation-prop"></a><span class="qmlreadonly">read-only</span><span class="name">rotation</span> : <span class="type"><a href="qml-real.html">real</a></span></p></td></tr></table></div><div class="qmldoc"><p>These properties hold the angle between the two touch points.</p> <ul> <li><tt>angle</tt> is the current angle between the two points in the range -180 to 180.</li> <li><tt>previousAngle</tt> is the angle of the previous event.</li> <li><tt>rotation</tt> is the total rotation since the pinch gesture started.</li> </ul> <p>When a pinch gesture is started, the rotation is 0.0.</p> </div></div><!-- @@@angle --> <br/> <!-- $$$center --> <div class="qmlitem"><div class="qmlproto"><table class="qmlname"><tr valign="top" class="odd"><td class="tblQmlPropNode"><p><a name="center-prop"></a><span class="qmlreadonly">read-only</span><span class="name">center</span> : <span class="type"><a href="qpointf.html">QPointF</a></span></p></td></tr><tr valign="top" class="even"><td class="tblQmlPropNode"><p><a name="startCenter-prop"></a><span class="qmlreadonly">read-only</span><span class="name">startCenter</span> : <span class="type"><a href="qpointf.html">QPointF</a></span></p></td></tr><tr valign="top" class="odd"><td class="tblQmlPropNode"><p><a name="previousCenter-prop"></a><span class="qmlreadonly">read-only</span><span class="name">previousCenter</span> : <span class="type"><a href="qpointf.html">QPointF</a></span></p></td></tr></table></div><div class="qmldoc"><p>These properties hold the position of the center point between the two touch points.</p> <ul> <li><tt>center</tt> is the current center point</li> <li><tt>previousCenter</tt> is the center point of the previous event.</li> <li><tt>startCenter</tt> is the center point when the gesture began</li> </ul> </div></div><!-- @@@center --> <br/> <!-- $$$point1 --> <div class="qmlitem"><div class="qmlproto"><table class="qmlname"><tr valign="top" class="odd"><td class="tblQmlPropNode"><p><a name="point1-prop"></a><span class="qmlreadonly">read-only</span><span class="name">point1</span> : <span class="type"><a href="qpointf.html">QPointF</a></span></p></td></tr><tr valign="top" class="even"><td class="tblQmlPropNode"><p><a name="startPoint1-prop"></a><span class="qmlreadonly">read-only</span><span class="name">startPoint1</span> : <span class="type"><a href="qpointf.html">QPointF</a></span></p></td></tr><tr valign="top" class="odd"><td class="tblQmlPropNode"><p><a name="point2-prop"></a><span class="qmlreadonly">read-only</span><span class="name">point2</span> : <span class="type"><a href="qpointf.html">QPointF</a></span></p></td></tr><tr valign="top" class="even"><td class="tblQmlPropNode"><p><a name="startPoint2-prop"></a><span class="qmlreadonly">read-only</span><span class="name">startPoint2</span> : <span class="type"><a href="qpointf.html">QPointF</a></span></p></td></tr></table></div><div class="qmldoc"><p>These properties provide the actual touch points generating the pinch.</p> <ul> <li><tt>point1</tt> and <tt>point2</tt> hold the current positions of the points.</li> <li><tt>startPoint1</tt> and <tt>startPoint2</tt> hold the positions of the points when the second point was touched.</li> </ul> </div></div><!-- @@@point1 --> <br/> <!-- $$$pointCount --> <div class="qmlitem"><div class="qmlproto"><table class="qmlname"><tr valign="top" class="odd"><td class="tblQmlPropNode"><p><a name="pointCount-prop"></a><span class="qmlreadonly">read-only</span><span class="name">pointCount</span> : <span class="type"><a href="qml-int.html">int</a></span></p></td></tr></table></div><div class="qmldoc"><p>Holds the number of points currently touched. The <a href="qml-pincharea.html">PinchArea</a> will not react until two touch points have initited a gesture, but will remain active until all touch points have been released.</p> </div></div><!-- @@@pointCount --> <br/> <!-- $$$scale --> <div class="qmlitem"><div class="qmlproto"><table class="qmlname"><tr valign="top" class="odd"><td class="tblQmlPropNode"><p><a name="scale-prop"></a><span class="qmlreadonly">read-only</span><span class="name">scale</span> : <span class="type"><a href="qml-real.html">real</a></span></p></td></tr><tr valign="top" class="even"><td class="tblQmlPropNode"><p><a name="previousScale-prop"></a><span class="qmlreadonly">read-only</span><span class="name">previousScale</span> : <span class="type"><a href="qml-real.html">real</a></span></p></td></tr></table></div><div class="qmldoc"><p>These properties hold the scale factor determined by the change in distance between the two touch points.</p> <ul> <li><tt>scale</tt> is the current scale factor.</li> <li><tt>previousScale</tt> is the scale factor of the previous event.</li> </ul> <p>When a pinch gesture is started, the scale is 1.0.</p> </div></div><!-- @@@scale --> <br/> </div> </div> </div> <div class="ft"> <span></span> </div> </div> <div class="footer"> <p> <acronym title="Copyright">©</acronym> 2015 The Qt Company Ltd. 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