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<h1>QwtPlotMagnifier Class Reference</h1> </div>
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<!-- doxytag: class="QwtPlotMagnifier" --><!-- doxytag: inherits="QwtMagnifier" -->
<p><a class="el" href="class_qwt_plot_magnifier.html" title="QwtPlotMagnifier provides zooming, by magnifying in steps.">QwtPlotMagnifier</a> provides zooming, by magnifying in steps.
<a href="#_details">More...</a></p>
<p><code>#include <<a class="el" href="qwt__plot__magnifier_8h_source.html">qwt_plot_magnifier.h</a>></code></p>
<div class="dynheader">
Inheritance diagram for QwtPlotMagnifier:</div>
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<div class="center"><img src="class_qwt_plot_magnifier__inherit__graph.png" border="0" usemap="#_qwt_plot_magnifier_inherit__map" alt="Inheritance graph"/></div>
<map name="_qwt_plot_magnifier_inherit__map" id="_qwt_plot_magnifier_inherit__map">
<area shape="rect" id="node2" href="class_qwt_magnifier.html" title="QwtMagnifier provides zooming, by magnifying in steps." alt="" coords="17,5,113,35"/></map>
<center><span class="legend">[<a href="graph_legend.html">legend</a>]</span></center></div>
<p><a href="class_qwt_plot_magnifier-members.html">List of all members.</a></p>
<table class="memberdecls">
<tr><td colspan="2"><h2><a name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="class_qwt_plot_canvas.html">QwtPlotCanvas</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_magnifier.html#a947d94f9517bb096851738b5c2bf4b7d">canvas</a> ()</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">const <a class="el" href="class_qwt_plot_canvas.html">QwtPlotCanvas</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_magnifier.html#aadc3279e94ae3aad04824377b2d93829">canvas</a> () const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual bool </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_magnifier.html#ae7f4c0ad7631501cec17abe31695281f">eventFilter</a> (QObject *, QEvent *)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_magnifier.html#a3bf315d2740542648b2aed56ade85705">getMouseButton</a> (int &button, int &buttonState) const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_magnifier.html#a4cb3ef96e22af3c9af6a42978a575401">getZoomInKey</a> (int &key, int &modifiers) const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_magnifier.html#aa4ebc8789e6d7591c74f2c7ea4689d18">getZoomOutKey</a> (int &key, int &modifiers) const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_magnifier.html#acb4c33465bdd3c19c07ea3fa836c1f8d">isAxisEnabled</a> (int axis) const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_magnifier.html#a65552cac613ceac77e51b8deca522509">isEnabled</a> () const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_magnifier.html#a98706c848275b06d2830a8dbe053c9a3">keyFactor</a> () const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_magnifier.html#a49348534d3cd7fe37a4a7cb6c3bbff8d">mouseFactor</a> () const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top">QWidget * </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_magnifier.html#a56b7ad2366a7f908c38bc2a994acde16">parentWidget</a> ()</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">const QWidget * </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_magnifier.html#a7ea89693ca6ebd6376838d4ab107bf5a">parentWidget</a> () const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top">const <a class="el" href="class_qwt_plot.html">QwtPlot</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_magnifier.html#a2cc4ae00009f34f54880aea9e9837826">plot</a> () const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="class_qwt_plot.html">QwtPlot</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_magnifier.html#ae0197fb4f393e149585ff62f8e29cea6">plot</a> ()</td></tr>
<tr><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_magnifier.html#ab60fc56ac5a3f2e9ab879f0a9be0fdb9">QwtPlotMagnifier</a> (<a class="el" href="class_qwt_plot_canvas.html">QwtPlotCanvas</a> *)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_magnifier.html#ac8806df408b5ed9eac79cd38e5fc1508">setAxisEnabled</a> (int axis, bool on)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_magnifier.html#a03d892c58039fc864a452b7c636a1df7">setEnabled</a> (bool)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_magnifier.html#ac079b44e124fdaba1d894ef519bc4e4f">setKeyFactor</a> (double)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_magnifier.html#a345e4f61d48274f73f6e39fdcaea6745">setMouseButton</a> (int button, int buttonState=Qt::NoButton)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_magnifier.html#ada5dac479dc1e69c04760bb7dc197ac9">setMouseFactor</a> (double)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_magnifier.html#a36270c611c465f11f3ade46f3b3bb74a">setWheelButtonState</a> (int buttonState)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_magnifier.html#ae3a33ab8776ed2122fecc821a32bb36a">setWheelFactor</a> (double)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_magnifier.html#a51691b6a49437467d140fc0687b68140">setZoomInKey</a> (int key, int modifiers)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_magnifier.html#ae265bcef7b3a1c59fc432c20fa407805">setZoomOutKey</a> (int key, int modifiers)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_magnifier.html#a76521288b081b76d1edebfc8bc16e884">wheelButtonState</a> () const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_magnifier.html#a83722e9f081603a45e118947d7f810a4">wheelFactor</a> () const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_magnifier.html#a38c0508241885ea49542cc0f11c740df">~QwtPlotMagnifier</a> ()</td></tr>
<tr><td colspan="2"><h2><a name="pro-methods"></a>
Protected Member Functions</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_magnifier.html#a271ae5ad42c3dd12812246d2dee687ea">rescale</a> (double factor)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_magnifier.html#a382cec084a2bfc0610ca500121205f04">widgetKeyPressEvent</a> (QKeyEvent *)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_magnifier.html#af84037c68c9b88263d1c27bb648cf9ff">widgetKeyReleaseEvent</a> (QKeyEvent *)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_magnifier.html#a4eb68b98b063cc14b7839f02f8671dfc">widgetMouseMoveEvent</a> (QMouseEvent *)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_magnifier.html#a5930b3ec00ae99883f36cf8bf568cbf7">widgetMousePressEvent</a> (QMouseEvent *)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_magnifier.html#aa7cc31995444ca8dd8412b8a6dab7b93">widgetMouseReleaseEvent</a> (QMouseEvent *)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_magnifier.html#a236762870830cc0621411c173472392b">widgetWheelEvent</a> (QWheelEvent *)</td></tr>
</table>
<hr/><a name="_details"></a><h2>Detailed Description</h2>
<div class="textblock"><p><a class="el" href="class_qwt_plot_magnifier.html" title="QwtPlotMagnifier provides zooming, by magnifying in steps.">QwtPlotMagnifier</a> provides zooming, by magnifying in steps. </p>
<p>Using <a class="el" href="class_qwt_plot_magnifier.html" title="QwtPlotMagnifier provides zooming, by magnifying in steps.">QwtPlotMagnifier</a> a plot can be zoomed in/out in steps using keys, the mouse wheel or moving a mouse button in vertical direction.</p>
<p>Together with <a class="el" href="class_qwt_plot_zoomer.html" title="QwtPlotZoomer provides stacked zooming for a plot widget.">QwtPlotZoomer</a> and <a class="el" href="class_qwt_plot_panner.html" title="QwtPlotPanner provides panning of a plot canvas.">QwtPlotPanner</a> it is possible to implement individual and powerful navigation of the plot canvas.</p>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_plot_zoomer.html" title="QwtPlotZoomer provides stacked zooming for a plot widget.">QwtPlotZoomer</a>, <a class="el" href="class_qwt_plot_panner.html" title="QwtPlotPanner provides panning of a plot canvas.">QwtPlotPanner</a>, <a class="el" href="class_qwt_plot.html" title="A 2-D plotting widget.">QwtPlot</a> </dd></dl>
</div><hr/><h2>Constructor & Destructor Documentation</h2>
<a class="anchor" id="ab60fc56ac5a3f2e9ab879f0a9be0fdb9"></a><!-- doxytag: member="QwtPlotMagnifier::QwtPlotMagnifier" ref="ab60fc56ac5a3f2e9ab879f0a9be0fdb9" args="(QwtPlotCanvas *)" -->
<div class="memitem">
<div class="memproto">
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<td class="memname">QwtPlotMagnifier::QwtPlotMagnifier </td>
<td>(</td>
<td class="paramtype"><a class="el" href="class_qwt_plot_canvas.html">QwtPlotCanvas</a> * </td>
<td class="paramname"><em>canvas</em></td><td>)</td>
<td><code> [explicit]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Constructor </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">canvas</td><td>Plot canvas to be magnified </td></tr>
</table>
</dd>
</dl>
</div>
</div>
<a class="anchor" id="a38c0508241885ea49542cc0f11c740df"></a><!-- doxytag: member="QwtPlotMagnifier::~QwtPlotMagnifier" ref="a38c0508241885ea49542cc0f11c740df" args="()" -->
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<td class="memname">QwtPlotMagnifier::~QwtPlotMagnifier </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td><code> [virtual]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Destructor. </p>
</div>
</div>
<hr/><h2>Member Function Documentation</h2>
<a class="anchor" id="a947d94f9517bb096851738b5c2bf4b7d"></a><!-- doxytag: member="QwtPlotMagnifier::canvas" ref="a947d94f9517bb096851738b5c2bf4b7d" args="()" -->
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<div class="memproto">
<table class="memname">
<tr>
<td class="memname"><a class="el" href="class_qwt_plot_canvas.html">QwtPlotCanvas</a> * QwtPlotMagnifier::canvas </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Return observed plot canvas. </p>
</div>
</div>
<a class="anchor" id="aadc3279e94ae3aad04824377b2d93829"></a><!-- doxytag: member="QwtPlotMagnifier::canvas" ref="aadc3279e94ae3aad04824377b2d93829" args="() const " -->
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<td class="memname">const <a class="el" href="class_qwt_plot_canvas.html">QwtPlotCanvas</a> * QwtPlotMagnifier::canvas </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td> const</td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Return Observed plot canvas. </p>
</div>
</div>
<a class="anchor" id="ae7f4c0ad7631501cec17abe31695281f"></a><!-- doxytag: member="QwtPlotMagnifier::eventFilter" ref="ae7f4c0ad7631501cec17abe31695281f" args="(QObject *, QEvent *)" -->
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<div class="memproto">
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<td class="memname">bool QwtMagnifier::eventFilter </td>
<td>(</td>
<td class="paramtype">QObject * </td>
<td class="paramname"><em>object</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">QEvent * </td>
<td class="paramname"><em>event</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td><code> [virtual, inherited]</code></td>
</tr>
</table>
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<div class="memdoc">
<p>Event filter. </p>
<p>When <a class="el" href="class_qwt_magnifier.html#a65552cac613ceac77e51b8deca522509">isEnabled()</a> the mouse events of the observed widget are filtered.</p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">object</td><td>Object to be filtered </td></tr>
<tr><td class="paramname">event</td><td>Event</td></tr>
</table>
</dd>
</dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_magnifier.html#a5930b3ec00ae99883f36cf8bf568cbf7">widgetMousePressEvent()</a>, <a class="el" href="class_qwt_magnifier.html#aa7cc31995444ca8dd8412b8a6dab7b93">widgetMouseReleaseEvent()</a>, <a class="el" href="class_qwt_magnifier.html#a4eb68b98b063cc14b7839f02f8671dfc">widgetMouseMoveEvent()</a>, <a class="el" href="class_qwt_magnifier.html#a236762870830cc0621411c173472392b">widgetWheelEvent()</a>, <a class="el" href="class_qwt_magnifier.html#a382cec084a2bfc0610ca500121205f04">widgetKeyPressEvent()</a> <a class="el" href="class_qwt_magnifier.html#af84037c68c9b88263d1c27bb648cf9ff">widgetKeyReleaseEvent()</a> </dd></dl>
</div>
</div>
<a class="anchor" id="a3bf315d2740542648b2aed56ade85705"></a><!-- doxytag: member="QwtPlotMagnifier::getMouseButton" ref="a3bf315d2740542648b2aed56ade85705" args="(int &button, int &buttonState) const " -->
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<td class="memname">void QwtMagnifier::getMouseButton </td>
<td>(</td>
<td class="paramtype">int & </td>
<td class="paramname"><em>button</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int & </td>
<td class="paramname"><em>buttonState</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td> const<code> [inherited]</code></td>
</tr>
</table>
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<div class="memdoc">
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_magnifier.html#a345e4f61d48274f73f6e39fdcaea6745">setMouseButton()</a> </dd></dl>
</div>
</div>
<a class="anchor" id="a4cb3ef96e22af3c9af6a42978a575401"></a><!-- doxytag: member="QwtPlotMagnifier::getZoomInKey" ref="a4cb3ef96e22af3c9af6a42978a575401" args="(int &key, int &modifiers) const " -->
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<td class="memname">void QwtMagnifier::getZoomInKey </td>
<td>(</td>
<td class="paramtype">int & </td>
<td class="paramname"><em>key</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int & </td>
<td class="paramname"><em>modifiers</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td> const<code> [inherited]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_magnifier.html#a51691b6a49437467d140fc0687b68140">setZoomInKey()</a> </dd></dl>
</div>
</div>
<a class="anchor" id="aa4ebc8789e6d7591c74f2c7ea4689d18"></a><!-- doxytag: member="QwtPlotMagnifier::getZoomOutKey" ref="aa4ebc8789e6d7591c74f2c7ea4689d18" args="(int &key, int &modifiers) const " -->
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<td class="memname">void QwtMagnifier::getZoomOutKey </td>
<td>(</td>
<td class="paramtype">int & </td>
<td class="paramname"><em>key</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int & </td>
<td class="paramname"><em>modifiers</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td> const<code> [inherited]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_magnifier.html#ae265bcef7b3a1c59fc432c20fa407805">setZoomOutKey()</a> </dd></dl>
</div>
</div>
<a class="anchor" id="acb4c33465bdd3c19c07ea3fa836c1f8d"></a><!-- doxytag: member="QwtPlotMagnifier::isAxisEnabled" ref="acb4c33465bdd3c19c07ea3fa836c1f8d" args="(int axis) const " -->
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<td class="memname">bool QwtPlotMagnifier::isAxisEnabled </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"><em>axis</em></td><td>)</td>
<td> const</td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Test if an axis is enabled</p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">axis</td><td>Axis, see <a class="el" href="class_qwt_plot.html#a81df699dcf9dde0752c0726b5f31e271" title="Axis index.">QwtPlot::Axis</a> </td></tr>
</table>
</dd>
</dl>
<dl class="return"><dt><b>Returns:</b></dt><dd>True, if the axis is enabled</dd></dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_plot_magnifier.html#ac8806df408b5ed9eac79cd38e5fc1508" title="En/Disable an axis.">setAxisEnabled()</a> </dd></dl>
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<a class="anchor" id="a65552cac613ceac77e51b8deca522509"></a><!-- doxytag: member="QwtPlotMagnifier::isEnabled" ref="a65552cac613ceac77e51b8deca522509" args="() const " -->
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<td class="memname">bool QwtMagnifier::isEnabled </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td> const<code> [inherited]</code></td>
</tr>
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</div>
<div class="memdoc">
<dl class="return"><dt><b>Returns:</b></dt><dd>true when enabled, false otherwise </dd></dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_magnifier.html#a03d892c58039fc864a452b7c636a1df7" title="En/disable the magnifier.">setEnabled()</a>, <a class="el" href="class_qwt_magnifier.html#ae7f4c0ad7631501cec17abe31695281f" title="Event filter.">eventFilter()</a> </dd></dl>
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<a class="anchor" id="a98706c848275b06d2830a8dbe053c9a3"></a><!-- doxytag: member="QwtPlotMagnifier::keyFactor" ref="a98706c848275b06d2830a8dbe053c9a3" args="() const " -->
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<td class="memname">double QwtMagnifier::keyFactor </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td> const<code> [inherited]</code></td>
</tr>
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<div class="memdoc">
<dl class="return"><dt><b>Returns:</b></dt><dd>Key factor </dd></dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_magnifier.html#ac079b44e124fdaba1d894ef519bc4e4f" title="Change the key factor.">setKeyFactor()</a> </dd></dl>
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<a class="anchor" id="a49348534d3cd7fe37a4a7cb6c3bbff8d"></a><!-- doxytag: member="QwtPlotMagnifier::mouseFactor" ref="a49348534d3cd7fe37a4a7cb6c3bbff8d" args="() const " -->
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<td class="memname">double QwtMagnifier::mouseFactor </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td> const<code> [inherited]</code></td>
</tr>
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</div>
<div class="memdoc">
<dl class="return"><dt><b>Returns:</b></dt><dd>Mouse factor </dd></dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_magnifier.html#ada5dac479dc1e69c04760bb7dc197ac9" title="Change the mouse factor.">setMouseFactor()</a> </dd></dl>
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<a class="anchor" id="a56b7ad2366a7f908c38bc2a994acde16"></a><!-- doxytag: member="QwtPlotMagnifier::parentWidget" ref="a56b7ad2366a7f908c38bc2a994acde16" args="()" -->
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<td class="memname">QWidget * QwtMagnifier::parentWidget </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td><code> [inherited]</code></td>
</tr>
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<div class="memdoc">
<dl class="return"><dt><b>Returns:</b></dt><dd>Parent widget, where the rescaling happens </dd></dl>
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<a class="anchor" id="a7ea89693ca6ebd6376838d4ab107bf5a"></a><!-- doxytag: member="QwtPlotMagnifier::parentWidget" ref="a7ea89693ca6ebd6376838d4ab107bf5a" args="() const " -->
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<td class="memname">const QWidget * QwtMagnifier::parentWidget </td>
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<td class="paramname"></td><td>)</td>
<td> const<code> [inherited]</code></td>
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<dl class="return"><dt><b>Returns:</b></dt><dd>Parent widget, where the rescaling happens </dd></dl>
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<a class="anchor" id="ae0197fb4f393e149585ff62f8e29cea6"></a><!-- doxytag: member="QwtPlotMagnifier::plot" ref="ae0197fb4f393e149585ff62f8e29cea6" args="()" -->
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<td class="memname"><a class="el" href="class_qwt_plot.html">QwtPlot</a> * QwtPlotMagnifier::plot </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td></td>
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<p>Return plot widget, containing the observed plot canvas. </p>
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<a class="anchor" id="a2cc4ae00009f34f54880aea9e9837826"></a><!-- doxytag: member="QwtPlotMagnifier::plot" ref="a2cc4ae00009f34f54880aea9e9837826" args="() const " -->
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<td class="memname">const <a class="el" href="class_qwt_plot.html">QwtPlot</a> * QwtPlotMagnifier::plot </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td> const</td>
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<p>Return plot widget, containing the observed plot canvas. </p>
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<a class="anchor" id="a271ae5ad42c3dd12812246d2dee687ea"></a><!-- doxytag: member="QwtPlotMagnifier::rescale" ref="a271ae5ad42c3dd12812246d2dee687ea" args="(double factor)" -->
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<td class="memname">void QwtPlotMagnifier::rescale </td>
<td>(</td>
<td class="paramtype">double </td>
<td class="paramname"><em>factor</em></td><td>)</td>
<td><code> [protected, virtual]</code></td>
</tr>
</table>
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<p>Zoom in/out the axes scales </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">factor</td><td>A value < 1.0 zooms in, a value > 1.0 zooms out. </td></tr>
</table>
</dd>
</dl>
<p>Implements <a class="el" href="class_qwt_magnifier.html#a5c3d5bda10412a50bd403afe84e2ccee">QwtMagnifier</a>.</p>
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<a class="anchor" id="ac8806df408b5ed9eac79cd38e5fc1508"></a><!-- doxytag: member="QwtPlotMagnifier::setAxisEnabled" ref="ac8806df408b5ed9eac79cd38e5fc1508" args="(int axis, bool on)" -->
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<td class="memname">void QwtPlotMagnifier::setAxisEnabled </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"><em>axis</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">bool </td>
<td class="paramname"><em>on</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
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<p>En/Disable an axis. </p>
<p>Only Axes that are enabled will be zoomed. All other axes will remain unchanged.</p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">axis</td><td>Axis, see <a class="el" href="class_qwt_plot.html#a81df699dcf9dde0752c0726b5f31e271" title="Axis index.">QwtPlot::Axis</a> </td></tr>
<tr><td class="paramname">on</td><td>On/Off</td></tr>
</table>
</dd>
</dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_plot_magnifier.html#acb4c33465bdd3c19c07ea3fa836c1f8d">isAxisEnabled()</a> </dd></dl>
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<a class="anchor" id="a03d892c58039fc864a452b7c636a1df7"></a><!-- doxytag: member="QwtPlotMagnifier::setEnabled" ref="a03d892c58039fc864a452b7c636a1df7" args="(bool)" -->
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<td class="memname">void QwtMagnifier::setEnabled </td>
<td>(</td>
<td class="paramtype">bool </td>
<td class="paramname"><em>on</em></td><td>)</td>
<td><code> [inherited]</code></td>
</tr>
</table>
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<p>En/disable the magnifier. </p>
<p>When enabled is true an event filter is installed for the observed widget, otherwise the event filter is removed.</p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">on</td><td>true or false </td></tr>
</table>
</dd>
</dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_magnifier.html#a65552cac613ceac77e51b8deca522509">isEnabled()</a>, <a class="el" href="class_qwt_magnifier.html#ae7f4c0ad7631501cec17abe31695281f" title="Event filter.">eventFilter()</a> </dd></dl>
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<a class="anchor" id="ac079b44e124fdaba1d894ef519bc4e4f"></a><!-- doxytag: member="QwtPlotMagnifier::setKeyFactor" ref="ac079b44e124fdaba1d894ef519bc4e4f" args="(double)" -->
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<td class="memname">void QwtMagnifier::setKeyFactor </td>
<td>(</td>
<td class="paramtype">double </td>
<td class="paramname"><em>factor</em></td><td>)</td>
<td><code> [inherited]</code></td>
</tr>
</table>
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<p>Change the key factor. </p>
<p>The key factor defines the ratio between the current range on the parent widget and the zoomed range for each key press of the zoom in/out keys. The default value is 0.9.</p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">factor</td><td>Key factor </td></tr>
</table>
</dd>
</dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_magnifier.html#a98706c848275b06d2830a8dbe053c9a3">keyFactor()</a>, <a class="el" href="class_qwt_magnifier.html#a51691b6a49437467d140fc0687b68140">setZoomInKey()</a>, <a class="el" href="class_qwt_magnifier.html#ae265bcef7b3a1c59fc432c20fa407805">setZoomOutKey()</a>, <a class="el" href="class_qwt_magnifier.html#ae3a33ab8776ed2122fecc821a32bb36a" title="Change the wheel factor.">setWheelFactor</a>, <a class="el" href="class_qwt_magnifier.html#ada5dac479dc1e69c04760bb7dc197ac9" title="Change the mouse factor.">setMouseFactor()</a> </dd></dl>
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<a class="anchor" id="a345e4f61d48274f73f6e39fdcaea6745"></a><!-- doxytag: member="QwtPlotMagnifier::setMouseButton" ref="a345e4f61d48274f73f6e39fdcaea6745" args="(int button, int buttonState=Qt::NoButton)" -->
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<td class="memname">void QwtMagnifier::setMouseButton </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"><em>button</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>buttonState</em> = <code>Qt::NoButton</code> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td><code> [inherited]</code></td>
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<p>Assign the mouse button, that is used for zooming in/out. The default value is Qt::RightButton.</p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">button</td><td>Button </td></tr>
<tr><td class="paramname">buttonState</td><td>Button state </td></tr>
</table>
</dd>
</dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_magnifier.html#a3bf315d2740542648b2aed56ade85705">getMouseButton()</a> </dd></dl>
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<a class="anchor" id="ada5dac479dc1e69c04760bb7dc197ac9"></a><!-- doxytag: member="QwtPlotMagnifier::setMouseFactor" ref="ada5dac479dc1e69c04760bb7dc197ac9" args="(double)" -->
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<td class="memname">void QwtMagnifier::setMouseFactor </td>
<td>(</td>
<td class="paramtype">double </td>
<td class="paramname"><em>factor</em></td><td>)</td>
<td><code> [inherited]</code></td>
</tr>
</table>
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<p>Change the mouse factor. </p>
<p>The mouse factor defines the ratio between the current range on the parent widget and the zoomed range for each vertical mouse movement. The default value is 0.95.</p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">factor</td><td>Wheel factor </td></tr>
</table>
</dd>
</dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_magnifier.html#a49348534d3cd7fe37a4a7cb6c3bbff8d">mouseFactor()</a>, <a class="el" href="class_qwt_magnifier.html#a345e4f61d48274f73f6e39fdcaea6745">setMouseButton()</a>, <a class="el" href="class_qwt_magnifier.html#ae3a33ab8776ed2122fecc821a32bb36a" title="Change the wheel factor.">setWheelFactor()</a>, <a class="el" href="class_qwt_magnifier.html#ac079b44e124fdaba1d894ef519bc4e4f" title="Change the key factor.">setKeyFactor()</a> </dd></dl>
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<a class="anchor" id="a36270c611c465f11f3ade46f3b3bb74a"></a><!-- doxytag: member="QwtPlotMagnifier::setWheelButtonState" ref="a36270c611c465f11f3ade46f3b3bb74a" args="(int buttonState)" -->
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<td class="memname">void QwtMagnifier::setWheelButtonState </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"><em>buttonState</em></td><td>)</td>
<td><code> [inherited]</code></td>
</tr>
</table>
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<p>Assign a mandatory button state for zooming in/out using the wheel. The default button state is Qt::NoButton.</p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">buttonState</td><td>Button state </td></tr>
</table>
</dd>
</dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_magnifier.html#a76521288b081b76d1edebfc8bc16e884">wheelButtonState()</a> </dd></dl>
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<a class="anchor" id="ae3a33ab8776ed2122fecc821a32bb36a"></a><!-- doxytag: member="QwtPlotMagnifier::setWheelFactor" ref="ae3a33ab8776ed2122fecc821a32bb36a" args="(double)" -->
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<td class="memname">void QwtMagnifier::setWheelFactor </td>
<td>(</td>
<td class="paramtype">double </td>
<td class="paramname"><em>factor</em></td><td>)</td>
<td><code> [inherited]</code></td>
</tr>
</table>
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<p>Change the wheel factor. </p>
<p>The wheel factor defines the ratio between the current range on the parent widget and the zoomed range for each step of the wheel. The default value is 0.9.</p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">factor</td><td>Wheel factor </td></tr>
</table>
</dd>
</dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_magnifier.html#a83722e9f081603a45e118947d7f810a4">wheelFactor()</a>, <a class="el" href="class_qwt_magnifier.html#a36270c611c465f11f3ade46f3b3bb74a">setWheelButtonState()</a>, <a class="el" href="class_qwt_magnifier.html#ada5dac479dc1e69c04760bb7dc197ac9" title="Change the mouse factor.">setMouseFactor()</a>, <a class="el" href="class_qwt_magnifier.html#ac079b44e124fdaba1d894ef519bc4e4f" title="Change the key factor.">setKeyFactor()</a> </dd></dl>
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<a class="anchor" id="a51691b6a49437467d140fc0687b68140"></a><!-- doxytag: member="QwtPlotMagnifier::setZoomInKey" ref="a51691b6a49437467d140fc0687b68140" args="(int key, int modifiers)" -->
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<td class="memname">void QwtMagnifier::setZoomInKey </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"><em>key</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>modifiers</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td><code> [inherited]</code></td>
</tr>
</table>
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<p>Assign the key, that is used for zooming in. The default combination is Qt::Key_Plus + Qt::NoModifier.</p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">key</td><td></td></tr>
<tr><td class="paramname">modifiers</td><td></td></tr>
</table>
</dd>
</dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_magnifier.html#a4cb3ef96e22af3c9af6a42978a575401">getZoomInKey()</a>, <a class="el" href="class_qwt_magnifier.html#ae265bcef7b3a1c59fc432c20fa407805">setZoomOutKey()</a> </dd></dl>
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<a class="anchor" id="ae265bcef7b3a1c59fc432c20fa407805"></a><!-- doxytag: member="QwtPlotMagnifier::setZoomOutKey" ref="ae265bcef7b3a1c59fc432c20fa407805" args="(int key, int modifiers)" -->
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<td class="memname">void QwtMagnifier::setZoomOutKey </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"><em>key</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>modifiers</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td><code> [inherited]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Assign the key, that is used for zooming out. The default combination is Qt::Key_Minus + Qt::NoModifier.</p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">key</td><td></td></tr>
<tr><td class="paramname">modifiers</td><td></td></tr>
</table>
</dd>
</dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_magnifier.html#aa4ebc8789e6d7591c74f2c7ea4689d18">getZoomOutKey()</a>, <a class="el" href="class_qwt_magnifier.html#ae265bcef7b3a1c59fc432c20fa407805">setZoomOutKey()</a> </dd></dl>
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<a class="anchor" id="a76521288b081b76d1edebfc8bc16e884"></a><!-- doxytag: member="QwtPlotMagnifier::wheelButtonState" ref="a76521288b081b76d1edebfc8bc16e884" args="() const " -->
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<td class="memname">int QwtMagnifier::wheelButtonState </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td> const<code> [inherited]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<dl class="return"><dt><b>Returns:</b></dt><dd>Wheel button state </dd></dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_magnifier.html#a36270c611c465f11f3ade46f3b3bb74a">setWheelButtonState()</a> </dd></dl>
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<a class="anchor" id="a83722e9f081603a45e118947d7f810a4"></a><!-- doxytag: member="QwtPlotMagnifier::wheelFactor" ref="a83722e9f081603a45e118947d7f810a4" args="() const " -->
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<td class="memname">double QwtMagnifier::wheelFactor </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td> const<code> [inherited]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<dl class="return"><dt><b>Returns:</b></dt><dd>Wheel factor </dd></dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_magnifier.html#ae3a33ab8776ed2122fecc821a32bb36a" title="Change the wheel factor.">setWheelFactor()</a> </dd></dl>
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<a class="anchor" id="a382cec084a2bfc0610ca500121205f04"></a><!-- doxytag: member="QwtPlotMagnifier::widgetKeyPressEvent" ref="a382cec084a2bfc0610ca500121205f04" args="(QKeyEvent *)" -->
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<td class="memname">void QwtMagnifier::widgetKeyPressEvent </td>
<td>(</td>
<td class="paramtype">QKeyEvent * </td>
<td class="paramname"><em>keyEvent</em></td><td>)</td>
<td><code> [protected, virtual, inherited]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Handle a key press event for the observed widget.</p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">keyEvent</td><td>Key event </td></tr>
</table>
</dd>
</dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_magnifier.html#ae7f4c0ad7631501cec17abe31695281f" title="Event filter.">eventFilter()</a>, <a class="el" href="class_qwt_magnifier.html#af84037c68c9b88263d1c27bb648cf9ff">widgetKeyReleaseEvent()</a> </dd></dl>
</div>
</div>
<a class="anchor" id="af84037c68c9b88263d1c27bb648cf9ff"></a><!-- doxytag: member="QwtPlotMagnifier::widgetKeyReleaseEvent" ref="af84037c68c9b88263d1c27bb648cf9ff" args="(QKeyEvent *)" -->
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<td class="memname">void QwtMagnifier::widgetKeyReleaseEvent </td>
<td>(</td>
<td class="paramtype">QKeyEvent * </td>
<td class="paramname"><em>keyEvent</em></td><td>)</td>
<td><code> [protected, virtual, inherited]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Handle a key release event for the observed widget.</p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">keyEvent</td><td>Key event </td></tr>
</table>
</dd>
</dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_magnifier.html#ae7f4c0ad7631501cec17abe31695281f" title="Event filter.">eventFilter()</a>, <a class="el" href="class_qwt_magnifier.html#af84037c68c9b88263d1c27bb648cf9ff">widgetKeyReleaseEvent()</a> </dd></dl>
</div>
</div>
<a class="anchor" id="a4eb68b98b063cc14b7839f02f8671dfc"></a><!-- doxytag: member="QwtPlotMagnifier::widgetMouseMoveEvent" ref="a4eb68b98b063cc14b7839f02f8671dfc" args="(QMouseEvent *)" -->
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<td class="memname">void QwtMagnifier::widgetMouseMoveEvent </td>
<td>(</td>
<td class="paramtype">QMouseEvent * </td>
<td class="paramname"><em>mouseEvent</em></td><td>)</td>
<td><code> [protected, virtual, inherited]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Handle a mouse move event for the observed widget.</p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">mouseEvent</td><td>Mouse event </td></tr>
</table>
</dd>
</dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_magnifier.html#ae7f4c0ad7631501cec17abe31695281f" title="Event filter.">eventFilter()</a>, <a class="el" href="class_qwt_magnifier.html#a5930b3ec00ae99883f36cf8bf568cbf7">widgetMousePressEvent()</a>, <a class="el" href="class_qwt_magnifier.html#aa7cc31995444ca8dd8412b8a6dab7b93">widgetMouseReleaseEvent()</a>, </dd></dl>
</div>
</div>
<a class="anchor" id="a5930b3ec00ae99883f36cf8bf568cbf7"></a><!-- doxytag: member="QwtPlotMagnifier::widgetMousePressEvent" ref="a5930b3ec00ae99883f36cf8bf568cbf7" args="(QMouseEvent *)" -->
<div class="memitem">
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<td class="memname">void QwtMagnifier::widgetMousePressEvent </td>
<td>(</td>
<td class="paramtype">QMouseEvent * </td>
<td class="paramname"><em>mouseEvent</em></td><td>)</td>
<td><code> [protected, virtual, inherited]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Handle a mouse press event for the observed widget.</p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">mouseEvent</td><td>Mouse event </td></tr>
</table>
</dd>
</dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_magnifier.html#ae7f4c0ad7631501cec17abe31695281f" title="Event filter.">eventFilter()</a>, <a class="el" href="class_qwt_magnifier.html#aa7cc31995444ca8dd8412b8a6dab7b93">widgetMouseReleaseEvent()</a>, <a class="el" href="class_qwt_magnifier.html#a4eb68b98b063cc14b7839f02f8671dfc">widgetMouseMoveEvent()</a> </dd></dl>
</div>
</div>
<a class="anchor" id="aa7cc31995444ca8dd8412b8a6dab7b93"></a><!-- doxytag: member="QwtPlotMagnifier::widgetMouseReleaseEvent" ref="aa7cc31995444ca8dd8412b8a6dab7b93" args="(QMouseEvent *)" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">void QwtMagnifier::widgetMouseReleaseEvent </td>
<td>(</td>
<td class="paramtype">QMouseEvent * </td>
<td class="paramname"><em>mouseEvent</em></td><td>)</td>
<td><code> [protected, virtual, inherited]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Handle a mouse release event for the observed widget.</p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">mouseEvent</td><td>Mouse event</td></tr>
</table>
</dd>
</dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_magnifier.html#ae7f4c0ad7631501cec17abe31695281f" title="Event filter.">eventFilter()</a>, <a class="el" href="class_qwt_magnifier.html#a5930b3ec00ae99883f36cf8bf568cbf7">widgetMousePressEvent()</a>, <a class="el" href="class_qwt_magnifier.html#a4eb68b98b063cc14b7839f02f8671dfc">widgetMouseMoveEvent()</a>, </dd></dl>
</div>
</div>
<a class="anchor" id="a236762870830cc0621411c173472392b"></a><!-- doxytag: member="QwtPlotMagnifier::widgetWheelEvent" ref="a236762870830cc0621411c173472392b" args="(QWheelEvent *)" -->
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<td class="memname">void QwtMagnifier::widgetWheelEvent </td>
<td>(</td>
<td class="paramtype">QWheelEvent * </td>
<td class="paramname"><em>wheelEvent</em></td><td>)</td>
<td><code> [protected, virtual, inherited]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Handle a wheel event for the observed widget.</p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">wheelEvent</td><td>Wheel event </td></tr>
</table>
</dd>
</dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_magnifier.html#ae7f4c0ad7631501cec17abe31695281f" title="Event filter.">eventFilter()</a> </dd></dl>
</div>
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