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<title>Qwt User's Guide: QwtPlotZoomer Class Reference</title>
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<h1>QwtPlotZoomer Class Reference</h1><!-- doxytag: class="QwtPlotZoomer" --><!-- doxytag: inherits="QwtPlotPicker" -->Inheritance diagram for QwtPlotZoomer:<p><center><img src="class_qwt_plot_zoomer__inherit__graph.png" border="0" usemap="#_qwt_plot_zoomer__inherit__map" alt="Inheritance graph"></center>
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<map name="_qwt_plot_zoomer__inherit__map">
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<area href="class_qwt_plot_picker.html" shape="rect" coords="15,157,121,181" alt="">
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<area href="class_qwt_picker.html" shape="rect" coords="27,83,109,107" alt="">
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<area href="class_qwt_event_pattern.html" shape="rect" coords="7,8,129,32" alt="">
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<center><font size="2">[<a href="graph_legend.html">legend</a>]</font></center>Collaboration diagram for QwtPlotZoomer:<p><center><img src="class_qwt_plot_zoomer__coll__graph.png" border="0" usemap="#_qwt_plot_zoomer__coll__map" alt="Collaboration graph"></center>
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<map name="_qwt_plot_zoomer__coll__map">
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<area href="class_qwt_plot_picker.html" shape="rect" coords="15,157,121,181" alt="">
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<area href="class_qwt_picker.html" shape="rect" coords="27,83,109,107" alt="">
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<area href="class_qwt_event_pattern.html" shape="rect" coords="7,8,129,32" alt="">
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<center><font size="2">[<a href="graph_legend.html">legend</a>]</font></center><a href="class_qwt_plot_zoomer-members.html">List of all members.</a><hr><a name="_details"></a><h2>Detailed Description</h2>
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<a class="el" href="class_qwt_plot_zoomer.html">QwtPlotZoomer</a> provides stacked zooming for a plot widget.
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<a class="el" href="class_qwt_plot_zoomer.html">QwtPlotZoomer</a> offers rubberband selections on the plot canvas, translating the selected rectangles into plot coordinates and adjusting the axes to them. Zooming can repeated as often as possible, limited only by <a class="el" href="class_qwt_plot_zoomer.html#b541148fa7d57b8102d3d70ab9daccc4">maxStackDepth()</a> or <a class="el" href="class_qwt_plot_zoomer.html#27bb8d7911ef686f2a66bbc88df7e8d1">minZoomSize()</a>. Each rectangle is pushed on a stack.<p>
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Zoom rectangles can be selected depending on <a class="el" href="class_qwt_picker.html#a42f0efb5aa8bcf4f2097a49fb96f886">selectionFlags()</a> using the mouse or keyboard (<a class="el" href="class_qwt_event_pattern.html">QwtEventPattern</a>, <a class="el" href="class_qwt_picker_machine.html">QwtPickerMachine</a>). QwtEventPattern::MouseSelect3/QwtEventPatternKeyUndo, or QwtEventPattern::MouseSelect6/QwtEventPatternKeyRedo walk up and down the zoom stack. QwtEventPattern::MouseSelect2 or QwtEventPattern::KeyHome unzoom to the initial size.<p>
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<a class="el" href="class_qwt_plot_zoomer.html">QwtPlotZoomer</a> is tailored for plots with one x and y axis, but it is allowed to attach a second <a class="el" href="class_qwt_plot_zoomer.html">QwtPlotZoomer</a> for the other axes.<p>
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<dl class="note" compact><dt><b>Note:</b></dt><dd>The realtime example includes an derived zoomer class that adds scrollbars to the plot canvas. </dd></dl>
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Definition at line <a class="el" href="qwt__plot__zoomer_8h-source.html#l00049">49</a> of file <a class="el" href="qwt__plot__zoomer_8h-source.html">qwt_plot_zoomer.h</a>.<table border="0" cellpadding="0" cellspacing="0">
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<tr><td colspan="2"><br><h2>Public Slots</h2></td></tr>
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<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_zoomer.html#c66b3eac03db212812198637f4e233ca">moveBy</a> (double x, double y)</td></tr>
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<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_zoomer.html#6bfbb67129b1220df65685858c9d882c">move</a> (double x, double y)</td></tr>
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<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_zoomer.html#eeed51dfa01136f00961e679dcbb9d9d">zoom</a> (const <a class="el" href="qwt__double__rect_8h.html#0c0dc4d33592fac4ad94734d8e9c4152">QwtDoubleRect</a> &)</td></tr>
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<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_zoomer.html#0cee73f15c5791553cb52c4e7b3e881e">zoom</a> (int up)</td></tr>
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<tr><td colspan="2"><br><h2>Signals</h2></td></tr>
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<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_zoomer.html#e4e9b90ccfb97f4eae54c667f79644ff">zoomed</a> (const <a class="el" href="qwt__double__rect_8h.html#0c0dc4d33592fac4ad94734d8e9c4152">QwtDoubleRect</a> &rect)</td></tr>
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<tr><td colspan="2"><br><h2>Public Member Functions</h2></td></tr>
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<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_zoomer.html#07f5135e421d2aab3f06542ff1320ece">QwtPlotZoomer</a> (<a class="el" href="class_qwt_plot_canvas.html">QwtPlotCanvas</a> *, bool doReplot=true)</td></tr>
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<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_zoomer.html#b64adf928b11ec8f441098a551e437b4">QwtPlotZoomer</a> (int xAxis, int yAxis, <a class="el" href="class_qwt_plot_canvas.html">QwtPlotCanvas</a> *, bool doReplot=true)</td></tr>
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<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_zoomer.html#c94a73ec32fcfee08edf14d1a3021cd5">QwtPlotZoomer</a> (int xAxis, int yAxis, int selectionFlags, <a class="el" href="class_qwt_picker.html#01be4d404ffc3a7b238b0d0aaeb66b93">DisplayMode</a> trackerMode, <a class="el" href="class_qwt_plot_canvas.html">QwtPlotCanvas</a> *, bool doReplot=true)</td></tr>
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<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="3af28fe93e0098ce8d09222a7976f254"></a><!-- doxytag: member="QwtPlotZoomer::~QwtPlotZoomer" ref="3af28fe93e0098ce8d09222a7976f254" args="()" -->
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virtual </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_zoomer.html#3af28fe93e0098ce8d09222a7976f254">~QwtPlotZoomer</a> ()</td></tr>
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<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_zoomer.html#7ee4f2a0606df6e85258c52f0b5c7bc2">setZoomBase</a> (bool doReplot=true)</td></tr>
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<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_zoomer.html#80e1f91cf51b88aa11f2d976f01b4a3f">setZoomBase</a> (const <a class="el" href="qwt__double__rect_8h.html#0c0dc4d33592fac4ad94734d8e9c4152">QwtDoubleRect</a> &)</td></tr>
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<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="qwt__double__rect_8h.html#0c0dc4d33592fac4ad94734d8e9c4152">QwtDoubleRect</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_zoomer.html#dee8a101b06a37ec778038c789518e28">zoomBase</a> () const</td></tr>
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<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="qwt__double__rect_8h.html#0c0dc4d33592fac4ad94734d8e9c4152">QwtDoubleRect</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_zoomer.html#261d13f67af6e02ba48a64b36f7b5aef">zoomRect</a> () const</td></tr>
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<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_zoomer.html#6cb755e06b83e50e8353dd706f7fb6f0">setAxis</a> (int xAxis, int yAxis)</td></tr>
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<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_zoomer.html#3965591944793790407ba91d6de3a882">setMaxStackDepth</a> (int)</td></tr>
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<tr><td class="memItemLeft" nowrap align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_zoomer.html#b541148fa7d57b8102d3d70ab9daccc4">maxStackDepth</a> () const</td></tr>
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<tr><td class="memItemLeft" nowrap align="right" valign="top">const QStack< <a class="el" href="qwt__double__rect_8h.html#0c0dc4d33592fac4ad94734d8e9c4152">QwtDoubleRect</a> > & </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_zoomer.html#0befad8b95d8cb651e993e85d51acb06">zoomStack</a> () const</td></tr>
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<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="9364232f7725a2ec3c65784a0100e19f"></a><!-- doxytag: member="QwtPlotZoomer::setZoomStack" ref="9364232f7725a2ec3c65784a0100e19f" args="(const QStack< QwtDoubleRect > &, int zoomRectIndex=-1)" -->
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void </td><td class="memItemRight" valign="bottom"><b>setZoomStack</b> (const QStack< <a class="el" href="qwt__double__rect_8h.html#0c0dc4d33592fac4ad94734d8e9c4152">QwtDoubleRect</a> > &, int zoomRectIndex=-1)</td></tr>
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<tr><td class="memItemLeft" nowrap align="right" valign="top">uint </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_zoomer.html#b2a8af282a7052976e9c18b2d0c59db9">zoomRectIndex</a> () const</td></tr>
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<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_zoomer.html#c9d52dbddc9e79e7ce8ebd545e855e89">setSelectionFlags</a> (int)</td></tr>
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<tr><td colspan="2"><br><h2>Protected Member Functions</h2></td></tr>
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<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_zoomer.html#0d0f90bbd5fe99d5231b3cee00fffabe">rescale</a> ()</td></tr>
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<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual <a class="el" href="qwt__double__rect_8h.html#b86c0b8b4728646331f12743013c5b43">QwtDoubleSize</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_zoomer.html#27bb8d7911ef686f2a66bbc88df7e8d1">minZoomSize</a> () const</td></tr>
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<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_zoomer.html#abded662ecb3555b3a29cf3daacf79de">widgetMouseReleaseEvent</a> (QMouseEvent *)</td></tr>
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<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_zoomer.html#a44e42dcf37547a6b93d04a593f140c6">widgetKeyPressEvent</a> (QKeyEvent *)</td></tr>
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<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_zoomer.html#a54bb05797c0468c0f8de4217dce24dd">begin</a> ()</td></tr>
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<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual bool </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_zoomer.html#c7d10eb27858ccfebebecab5d69ecbb3">end</a> (bool ok=true)</td></tr>
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<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual bool </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plot_zoomer.html#86898c6696ee0706a3ac6b61018a112e">accept</a> (QwtPolygon &) const </td></tr>
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<hr><h2>Constructor & Destructor Documentation</h2>
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<a class="anchor" name="07f5135e421d2aab3f06542ff1320ece"></a><!-- doxytag: member="QwtPlotZoomer::QwtPlotZoomer" ref="07f5135e421d2aab3f06542ff1320ece" args="(QwtPlotCanvas *, bool doReplot=true)" -->
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<td class="memname">QwtPlotZoomer::QwtPlotZoomer </td>
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<td class="paramtype"><a class="el" href="class_qwt_plot_canvas.html">QwtPlotCanvas</a> * </td>
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<td class="paramname"> <em>canvas</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype">bool </td>
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<td class="paramname"> <em>doReplot</em> = <code>true</code></td><td> </td>
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<td></td><td></td><td width="100%"><code> [explicit]</code></td>
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Create a zoomer for a plot canvas.
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The zoomer is set to those x- and y-axis of the parent plot of the canvas that are enabled. If both or no x-axis are enabled, the picker is set to QwtPlot::xBottom. If both or no y-axis are enabled, it is set to QwtPlot::yLeft.<p>
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The <a class="el" href="class_qwt_picker.html#a42f0efb5aa8bcf4f2097a49fb96f886">selectionFlags()</a> are set to QwtPicker::RectSelection & QwtPicker::ClickSelection, the tracker mode to QwtPicker::ActiveOnly.<p>
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<dl compact><dt><b>Parameters:</b></dt><dd>
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<table border="0" cellspacing="2" cellpadding="0">
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<tr><td valign="top"></td><td valign="top"><em>canvas</em> </td><td>Plot canvas to observe, also the parent object </td></tr>
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<tr><td valign="top"></td><td valign="top"><em>doReplot</em> </td><td>Call replot for the attached plot before initializing the zoomer with its scales. This might be necessary, when the plot is in a state with pending scale changes.</td></tr>
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<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_plot.html#3a639850b65bc4dbf22b3f3170d61804">QwtPlot::autoReplot()</a>, <a class="el" href="class_qwt_plot.html#7b094e29b8e92b00e36517d0d7633c4b">QwtPlot::replot()</a>, <a class="el" href="class_qwt_plot_zoomer.html#7ee4f2a0606df6e85258c52f0b5c7bc2">setZoomBase()</a> </dd></dl>
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Definition at line <a class="el" href="qwt__plot__zoomer_8cpp-source.html#l00051">51</a> of file <a class="el" href="qwt__plot__zoomer_8cpp-source.html">qwt_plot_zoomer.cpp</a>.
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References <a class="el" href="qwt__plot__picker_8cpp-source.html#l00103">QwtPlotPicker::canvas()</a>.
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<a class="anchor" name="b64adf928b11ec8f441098a551e437b4"></a><!-- doxytag: member="QwtPlotZoomer::QwtPlotZoomer" ref="b64adf928b11ec8f441098a551e437b4" args="(int xAxis, int yAxis, QwtPlotCanvas *, bool doReplot=true)" -->
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<td class="memname">QwtPlotZoomer::QwtPlotZoomer </td>
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<td class="paramtype">int </td>
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<td class="paramname"> <em>xAxis</em>, </td>
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<td class="paramtype">int </td>
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<td class="paramname"> <em>yAxis</em>, </td>
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<td class="paramtype"><a class="el" href="class_qwt_plot_canvas.html">QwtPlotCanvas</a> * </td>
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<td class="paramname"> <em>canvas</em>, </td>
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<td class="paramtype">bool </td>
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<td class="paramname"> <em>doReplot</em> = <code>true</code></td><td> </td>
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<td></td><td></td><td width="100%"><code> [explicit]</code></td>
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Create a zoomer for a plot canvas.
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The <a class="el" href="class_qwt_picker.html#a42f0efb5aa8bcf4f2097a49fb96f886">selectionFlags()</a> are set to QwtPicker::RectSelection & QwtPicker::ClickSelection, the tracker mode to QwtPicker::ActiveOnly.<p>
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<dl compact><dt><b>Parameters:</b></dt><dd>
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<table border="0" cellspacing="2" cellpadding="0">
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<tr><td valign="top"></td><td valign="top"><em>xAxis</em> </td><td>X axis of the zoomer </td></tr>
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<tr><td valign="top"></td><td valign="top"><em>yAxis</em> </td><td>Y axis of the zoomer </td></tr>
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<tr><td valign="top"></td><td valign="top"><em>canvas</em> </td><td>Plot canvas to observe, also the parent object </td></tr>
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<tr><td valign="top"></td><td valign="top"><em>doReplot</em> </td><td>Call replot for the attached plot before initializing the zoomer with its scales. This might be necessary, when the plot is in a state with pending scale changes.</td></tr>
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<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_plot.html#3a639850b65bc4dbf22b3f3170d61804">QwtPlot::autoReplot()</a>, <a class="el" href="class_qwt_plot.html#7b094e29b8e92b00e36517d0d7633c4b">QwtPlot::replot()</a>, <a class="el" href="class_qwt_plot_zoomer.html#7ee4f2a0606df6e85258c52f0b5c7bc2">setZoomBase()</a> </dd></dl>
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Definition at line <a class="el" href="qwt__plot__zoomer_8cpp-source.html#l00075">75</a> of file <a class="el" href="qwt__plot__zoomer_8cpp-source.html">qwt_plot_zoomer.cpp</a>.
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References <a class="el" href="qwt__plot__picker_8cpp-source.html#l00103">QwtPlotPicker::canvas()</a>.
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<a class="anchor" name="c94a73ec32fcfee08edf14d1a3021cd5"></a><!-- doxytag: member="QwtPlotZoomer::QwtPlotZoomer" ref="c94a73ec32fcfee08edf14d1a3021cd5" args="(int xAxis, int yAxis, int selectionFlags, DisplayMode trackerMode, QwtPlotCanvas *, bool doReplot=true)" -->
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<td class="memname">QwtPlotZoomer::QwtPlotZoomer </td>
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<td class="paramtype">int </td>
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<td class="paramname"> <em>xAxis</em>, </td>
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<td class="paramtype">int </td>
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<td class="paramname"> <em>yAxis</em>, </td>
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<td class="paramtype">int </td>
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<td class="paramname"> <em>selectionFlags</em>, </td>
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<td class="paramtype"><a class="el" href="class_qwt_picker.html#01be4d404ffc3a7b238b0d0aaeb66b93">DisplayMode</a> </td>
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<td class="paramname"> <em>trackerMode</em>, </td>
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<td class="paramtype"><a class="el" href="class_qwt_plot_canvas.html">QwtPlotCanvas</a> * </td>
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<td class="paramname"> <em>canvas</em>, </td>
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<td class="paramtype">bool </td>
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<td class="paramname"> <em>doReplot</em> = <code>true</code></td><td> </td>
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<td></td><td></td><td width="100%"><code> [explicit]</code></td>
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Create a zoomer for a plot canvas.<p>
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<dl compact><dt><b>Parameters:</b></dt><dd>
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<table border="0" cellspacing="2" cellpadding="0">
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<tr><td valign="top"></td><td valign="top"><em>xAxis</em> </td><td>X axis of the zoomer </td></tr>
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<tr><td valign="top"></td><td valign="top"><em>yAxis</em> </td><td>Y axis of the zoomer </td></tr>
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<tr><td valign="top"></td><td valign="top"><em>selectionFlags</em> </td><td>Or'd value of <a class="el" href="class_qwt_picker.html#7417aae2fb1ba27fa864ac153df18b6c">QwtPicker::RectSelectionType</a> and <a class="el" href="class_qwt_picker.html#7fde641b6e2514f5271106a1cedd8718">QwtPicker::SelectionMode</a>. QwtPicker::RectSelection will be auto added. </td></tr>
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<tr><td valign="top"></td><td valign="top"><em>trackerMode</em> </td><td>Tracker mode </td></tr>
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<tr><td valign="top"></td><td valign="top"><em>canvas</em> </td><td>Plot canvas to observe, also the parent object </td></tr>
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<tr><td valign="top"></td><td valign="top"><em>doReplot</em> </td><td>Call replot for the attached plot before initializing the zoomer with its scales. This might be necessary, when the plot is in a state with pending scale changes.</td></tr>
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<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_picker.html">QwtPicker</a>, <a class="el" href="class_qwt_picker.html#e93fe995c8c581ac33a9f3445ea5e7b9">QwtPicker::setSelectionFlags()</a>, <a class="el" href="class_qwt_picker.html#83096bad2662e02e4914a7b40241c351">QwtPicker::setRubberBand()</a>, <a class="el" href="class_qwt_picker.html#94fc60c7223cdc470ae63156f6446d6f">QwtPicker::setTrackerMode</a><p>
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<a class="el" href="class_qwt_plot.html#3a639850b65bc4dbf22b3f3170d61804">QwtPlot::autoReplot()</a>, <a class="el" href="class_qwt_plot.html#7b094e29b8e92b00e36517d0d7633c4b">QwtPlot::replot()</a>, <a class="el" href="class_qwt_plot_zoomer.html#7ee4f2a0606df6e85258c52f0b5c7bc2">setZoomBase()</a> </dd></dl>
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Definition at line <a class="el" href="qwt__plot__zoomer_8cpp-source.html#l00103">103</a> of file <a class="el" href="qwt__plot__zoomer_8cpp-source.html">qwt_plot_zoomer.cpp</a>.
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References <a class="el" href="qwt__plot__picker_8cpp-source.html#l00103">QwtPlotPicker::canvas()</a>.
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<hr><h2>Member Function Documentation</h2>
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<a class="anchor" name="7ee4f2a0606df6e85258c52f0b5c7bc2"></a><!-- doxytag: member="QwtPlotZoomer::setZoomBase" ref="7ee4f2a0606df6e85258c52f0b5c7bc2" args="(bool doReplot=true)" -->
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<div class="memitem">
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<div class="memproto">
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<table class="memname">
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<td class="memname">void QwtPlotZoomer::setZoomBase </td>
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<td class="paramtype">bool </td>
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<td class="paramname"> <em>doReplot</em> = <code>true</code> </td>
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<td> ) </td>
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<td width="100%"><code> [virtual]</code></td>
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Reinitialized the zoom stack with <a class="el" href="class_qwt_plot_picker.html#96e73f28d02d49cb80ff2d3b607fccc5">scaleRect()</a> as base.<p>
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<dl compact><dt><b>Parameters:</b></dt><dd>
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<table border="0" cellspacing="2" cellpadding="0">
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<tr><td valign="top"></td><td valign="top"><em>doReplot</em> </td><td>Call replot for the attached plot before initializing the zoomer with its scales. This might be necessary, when the plot is in a state with pending scale changes.</td></tr>
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<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_plot_zoomer.html#dee8a101b06a37ec778038c789518e28">zoomBase()</a>, <a class="el" href="class_qwt_plot_picker.html#96e73f28d02d49cb80ff2d3b607fccc5">scaleRect()</a> <a class="el" href="class_qwt_plot.html#3a639850b65bc4dbf22b3f3170d61804">QwtPlot::autoReplot()</a>, <a class="el" href="class_qwt_plot.html#7b094e29b8e92b00e36517d0d7633c4b">QwtPlot::replot()</a>. </dd></dl>
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Definition at line <a class="el" href="qwt__plot__zoomer_8cpp-source.html#l00206">206</a> of file <a class="el" href="qwt__plot__zoomer_8cpp-source.html">qwt_plot_zoomer.cpp</a>.
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References <a class="el" href="qwt__plot__picker_8cpp-source.html#l00119">QwtPlotPicker::plot()</a>, <a class="el" href="qwt__plot_8cpp-source.html#l00363">QwtPlot::replot()</a>, <a class="el" href="qwt__plot__zoomer_8cpp-source.html#l00379">rescale()</a>, and <a class="el" href="qwt__plot__picker_8cpp-source.html#l00143">QwtPlotPicker::scaleRect()</a>.
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Referenced by <a class="el" href="qwt__plot__zoomer_8cpp-source.html#l00423">setAxis()</a>.
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<a class="anchor" name="80e1f91cf51b88aa11f2d976f01b4a3f"></a><!-- doxytag: member="QwtPlotZoomer::setZoomBase" ref="80e1f91cf51b88aa11f2d976f01b4a3f" args="(const QwtDoubleRect &)" -->
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<div class="memitem">
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<table class="memname">
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<td class="memname">void QwtPlotZoomer::setZoomBase </td>
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<td class="paramtype">const <a class="el" href="qwt__double__rect_8h.html#0c0dc4d33592fac4ad94734d8e9c4152">QwtDoubleRect</a> & </td>
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<td class="paramname"> <em>base</em> </td>
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<td> ) </td>
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<td width="100%"><code> [virtual]</code></td>
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Set the initial size of the zoomer.
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base is united with the current <a class="el" href="class_qwt_plot_picker.html#96e73f28d02d49cb80ff2d3b607fccc5">scaleRect()</a> and the zoom stack is reinitalized with it as zoom base. plot is zoomed to <a class="el" href="class_qwt_plot_picker.html#96e73f28d02d49cb80ff2d3b607fccc5">scaleRect()</a>.<p>
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<dl compact><dt><b>Parameters:</b></dt><dd>
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<table border="0" cellspacing="2" cellpadding="0">
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<tr><td valign="top"></td><td valign="top"><em>base</em> </td><td>Zoom base</td></tr>
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<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_plot_zoomer.html#dee8a101b06a37ec778038c789518e28">zoomBase()</a>, <a class="el" href="class_qwt_plot_picker.html#96e73f28d02d49cb80ff2d3b607fccc5">scaleRect()</a> </dd></dl>
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Definition at line <a class="el" href="qwt__plot__zoomer_8cpp-source.html#l00232">232</a> of file <a class="el" href="qwt__plot__zoomer_8cpp-source.html">qwt_plot_zoomer.cpp</a>.
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References <a class="el" href="qwt__plot__picker_8cpp-source.html#l00119">QwtPlotPicker::plot()</a>, <a class="el" href="qwt__plot__zoomer_8cpp-source.html#l00379">rescale()</a>, and <a class="el" href="qwt__plot__picker_8cpp-source.html#l00143">QwtPlotPicker::scaleRect()</a>.
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<a class="anchor" name="dee8a101b06a37ec778038c789518e28"></a><!-- doxytag: member="QwtPlotZoomer::zoomBase" ref="dee8a101b06a37ec778038c789518e28" args="() const" -->
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<div class="memitem">
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<div class="memproto">
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<table class="memname">
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<td class="memname"><a class="el" href="qwt__double__rect_8h.html#0c0dc4d33592fac4ad94734d8e9c4152">QwtDoubleRect</a> QwtPlotZoomer::zoomBase </td>
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<td class="paramname"> </td>
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<td> ) </td>
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<td width="100%"> const</td>
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<dl class="return" compact><dt><b>Returns:</b></dt><dd>Initial rectangle of the zoomer </dd></dl>
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<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_plot_zoomer.html#7ee4f2a0606df6e85258c52f0b5c7bc2">setZoomBase()</a>, <a class="el" href="class_qwt_plot_zoomer.html#261d13f67af6e02ba48a64b36f7b5aef">zoomRect()</a> </dd></dl>
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Definition at line <a class="el" href="qwt__plot__zoomer_8cpp-source.html#l00192">192</a> of file <a class="el" href="qwt__plot__zoomer_8cpp-source.html">qwt_plot_zoomer.cpp</a>.
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Referenced by <a class="el" href="qwt__plot__zoomer_8cpp-source.html#l00503">move()</a>.
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<a class="anchor" name="261d13f67af6e02ba48a64b36f7b5aef"></a><!-- doxytag: member="QwtPlotZoomer::zoomRect" ref="261d13f67af6e02ba48a64b36f7b5aef" args="() const" -->
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<div class="memitem">
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<div class="memproto">
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<table class="memname">
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<td class="memname"><a class="el" href="qwt__double__rect_8h.html#0c0dc4d33592fac4ad94734d8e9c4152">QwtDoubleRect</a> QwtPlotZoomer::zoomRect </td>
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<td class="paramname"> </td>
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<td> ) </td>
381
<td width="100%"> const</td>
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Rectangle at the current position on the zoom stack.<p>
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<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_plot_zoomer.html#b2a8af282a7052976e9c18b2d0c59db9">zoomRectIndex()</a>, <a class="el" href="class_qwt_plot_picker.html#96e73f28d02d49cb80ff2d3b607fccc5">scaleRect()</a>. </dd></dl>
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Definition at line <a class="el" href="qwt__plot__zoomer_8cpp-source.html#l00259">259</a> of file <a class="el" href="qwt__plot__zoomer_8cpp-source.html">qwt_plot_zoomer.cpp</a>.
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Referenced by <a class="el" href="qwt__plot__zoomer_8cpp-source.html#l00611">end()</a>, <a class="el" href="qwt__plot__zoomer_8cpp-source.html#l00503">move()</a>, and <a class="el" href="qwt__plot__zoomer_8cpp-source.html#l00283">zoom()</a>.
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<a class="anchor" name="6cb755e06b83e50e8353dd706f7fb6f0"></a><!-- doxytag: member="QwtPlotZoomer::setAxis" ref="6cb755e06b83e50e8353dd706f7fb6f0" args="(int xAxis, int yAxis)" -->
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<div class="memitem">
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<div class="memproto">
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<table class="memname">
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<td class="memname">void QwtPlotZoomer::setAxis </td>
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<td class="paramtype">int </td>
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<td class="paramname"> <em>xAxis</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype">int </td>
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<td class="paramname"> <em>yAxis</em></td><td> </td>
416
<td></td><td></td><td width="100%"><code> [virtual]</code></td>
423
Reinitialize the axes, and set the zoom base to their scales.<p>
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<dl compact><dt><b>Parameters:</b></dt><dd>
425
<table border="0" cellspacing="2" cellpadding="0">
426
<tr><td valign="top"></td><td valign="top"><em>xAxis</em> </td><td>X axis </td></tr>
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<tr><td valign="top"></td><td valign="top"><em>yAxis</em> </td><td>Y axis </td></tr>
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Reimplemented from <a class="el" href="class_qwt_plot_picker.html#a901c86543585c7056133a5cb6652e3d">QwtPlotPicker</a>.
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Definition at line <a class="el" href="qwt__plot__zoomer_8cpp-source.html#l00423">423</a> of file <a class="el" href="qwt__plot__zoomer_8cpp-source.html">qwt_plot_zoomer.cpp</a>.
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References <a class="el" href="qwt__plot__picker_8cpp-source.html#l00143">QwtPlotPicker::scaleRect()</a>, <a class="el" href="qwt__plot__picker_8cpp-source.html#l00169">QwtPlotPicker::setAxis()</a>, <a class="el" href="qwt__plot__zoomer_8cpp-source.html#l00206">setZoomBase()</a>, <a class="el" href="qwt__plot__picker_8cpp-source.html#l00183">QwtPlotPicker::xAxis()</a>, and <a class="el" href="qwt__plot__picker_8cpp-source.html#l00189">QwtPlotPicker::yAxis()</a>.
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<a class="anchor" name="3965591944793790407ba91d6de3a882"></a><!-- doxytag: member="QwtPlotZoomer::setMaxStackDepth" ref="3965591944793790407ba91d6de3a882" args="(int)" -->
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<div class="memitem">
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<div class="memproto">
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<table class="memname">
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<td class="memname">void QwtPlotZoomer::setMaxStackDepth </td>
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<td class="paramtype">int </td>
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<td class="paramname"> <em>depth</em> </td>
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<td> ) </td>
449
<td width="100%"></td>
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Limit the number of recursive zoom operations to depth.
458
A value of -1 set the depth to unlimited, 0 disables zooming. If the current zoom rectangle is below depth, the plot is unzoomed.<p>
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<dl compact><dt><b>Parameters:</b></dt><dd>
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<table border="0" cellspacing="2" cellpadding="0">
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<tr><td valign="top"></td><td valign="top"><em>depth</em> </td><td>Maximum for the stack depth </td></tr>
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<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_plot_zoomer.html#b541148fa7d57b8102d3d70ab9daccc4">maxStackDepth()</a> </dd></dl>
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<dl class="note" compact><dt><b>Note:</b></dt><dd>depth doesn't include the zoom base, so <a class="el" href="class_qwt_plot_zoomer.html#0befad8b95d8cb651e993e85d51acb06">zoomStack()</a>.count() might be <a class="el" href="class_qwt_plot_zoomer.html#b541148fa7d57b8102d3d70ab9daccc4">maxStackDepth()</a> + 1. </dd></dl>
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Definition at line <a class="el" href="qwt__plot__zoomer_8cpp-source.html#l00145">145</a> of file <a class="el" href="qwt__plot__zoomer_8cpp-source.html">qwt_plot_zoomer.cpp</a>.
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References <a class="el" href="qwt__plot__zoomer_8cpp-source.html#l00283">zoom()</a>.
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<a class="anchor" name="b541148fa7d57b8102d3d70ab9daccc4"></a><!-- doxytag: member="QwtPlotZoomer::maxStackDepth" ref="b541148fa7d57b8102d3d70ab9daccc4" args="() const" -->
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<div class="memitem">
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<div class="memproto">
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<table class="memname">
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<td class="memname">int QwtPlotZoomer::maxStackDepth </td>
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<td class="paramname"> </td>
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<td> ) </td>
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<td width="100%"> const</td>
489
<dl class="return" compact><dt><b>Returns:</b></dt><dd>Maximal depth of the zoom stack. </dd></dl>
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<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_plot_zoomer.html#3965591944793790407ba91d6de3a882">setMaxStackDepth()</a> </dd></dl>
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Definition at line <a class="el" href="qwt__plot__zoomer_8cpp-source.html#l00172">172</a> of file <a class="el" href="qwt__plot__zoomer_8cpp-source.html">qwt_plot_zoomer.cpp</a>.
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<a class="anchor" name="0befad8b95d8cb651e993e85d51acb06"></a><!-- doxytag: member="QwtPlotZoomer::zoomStack" ref="0befad8b95d8cb651e993e85d51acb06" args="() const" -->
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<div class="memitem">
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<div class="memproto">
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<table class="memname">
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<td class="memname">const QwtZoomStack & QwtPlotZoomer::zoomStack </td>
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<td class="paramname"> </td>
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<td> ) </td>
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<td width="100%"> const</td>
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Return the zoom stack. <a class="el" href="class_qwt_plot_zoomer.html#0befad8b95d8cb651e993e85d51acb06">zoomStack()</a>[0] is the zoom base, <a class="el" href="class_qwt_plot_zoomer.html#0befad8b95d8cb651e993e85d51acb06">zoomStack()</a>[1] the first zoomed rectangle.<p>
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<dl class="see" compact><dt><b>See also:</b></dt><dd>setZoomStack(), <a class="el" href="class_qwt_plot_zoomer.html#b2a8af282a7052976e9c18b2d0c59db9">zoomRectIndex()</a> </dd></dl>
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Definition at line <a class="el" href="qwt__plot__zoomer_8cpp-source.html#l00183">183</a> of file <a class="el" href="qwt__plot__zoomer_8cpp-source.html">qwt_plot_zoomer.cpp</a>.
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<a class="anchor" name="b2a8af282a7052976e9c18b2d0c59db9"></a><!-- doxytag: member="QwtPlotZoomer::zoomRectIndex" ref="b2a8af282a7052976e9c18b2d0c59db9" args="() const" -->
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<div class="memitem">
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<div class="memproto">
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<table class="memname">
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<td class="memname">uint QwtPlotZoomer::zoomRectIndex </td>
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<td class="paramname"> </td>
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<td> ) </td>
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<td width="100%"> const</td>
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<dl class="return" compact><dt><b>Returns:</b></dt><dd>Index of current position of zoom stack. </dd></dl>
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Definition at line <a class="el" href="qwt__plot__zoomer_8cpp-source.html#l00267">267</a> of file <a class="el" href="qwt__plot__zoomer_8cpp-source.html">qwt_plot_zoomer.cpp</a>.
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<a class="anchor" name="c9d52dbddc9e79e7ce8ebd545e855e89"></a><!-- doxytag: member="QwtPlotZoomer::setSelectionFlags" ref="c9d52dbddc9e79e7ce8ebd545e855e89" args="(int)" -->
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<div class="memitem">
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<div class="memproto">
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<table class="memname">
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<td class="memname">void QwtPlotZoomer::setSelectionFlags </td>
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<td class="paramtype">int </td>
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<td class="paramname"> <em>flags</em> </td>
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<td> ) </td>
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<td width="100%"><code> [virtual]</code></td>
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Set the selection flags<p>
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<dl compact><dt><b>Parameters:</b></dt><dd>
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<table border="0" cellspacing="2" cellpadding="0">
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<tr><td valign="top"></td><td valign="top"><em>flags</em> </td><td>Or'd value of <a class="el" href="class_qwt_picker.html#7417aae2fb1ba27fa864ac153df18b6c">QwtPicker::RectSelectionType</a> and <a class="el" href="class_qwt_picker.html#7fde641b6e2514f5271106a1cedd8718">QwtPicker::SelectionMode</a>. The default value is QwtPicker::RectSelection & QwtPicker::ClickSelection.</td></tr>
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<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_picker.html#a42f0efb5aa8bcf4f2097a49fb96f886">selectionFlags()</a>, <a class="el" href="class_qwt_picker.html#446d9f87a6796d62949c62d77c51e3eb">SelectionType</a>, <a class="el" href="class_qwt_picker.html#7417aae2fb1ba27fa864ac153df18b6c">RectSelectionType</a>, <a class="el" href="class_qwt_picker.html#7fde641b6e2514f5271106a1cedd8718">SelectionMode</a> </dd></dl>
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<dl class="note" compact><dt><b>Note:</b></dt><dd>QwtPicker::RectSelection will be auto added. </dd></dl>
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Reimplemented from <a class="el" href="class_qwt_picker.html#e93fe995c8c581ac33a9f3445ea5e7b9">QwtPicker</a>.
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Definition at line <a class="el" href="qwt__plot__zoomer_8cpp-source.html#l00655">655</a> of file <a class="el" href="qwt__plot__zoomer_8cpp-source.html">qwt_plot_zoomer.cpp</a>.
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References <a class="el" href="qwt__picker_8cpp-source.html#l00401">QwtPicker::setSelectionFlags()</a>.
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<a class="anchor" name="c66b3eac03db212812198637f4e233ca"></a><!-- doxytag: member="QwtPlotZoomer::moveBy" ref="c66b3eac03db212812198637f4e233ca" args="(double x, double y)" -->
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<div class="memitem">
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<div class="memproto">
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<table class="memname">
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<td class="memname">void QwtPlotZoomer::moveBy </td>
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<td class="paramtype">double </td>
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<td class="paramname"> <em>dx</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype">double </td>
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<td class="paramname"> <em>dy</em></td><td> </td>
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<td></td><td></td><td width="100%"><code> [slot]</code></td>
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Move the current zoom rectangle.<p>
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<dl compact><dt><b>Parameters:</b></dt><dd>
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<table border="0" cellspacing="2" cellpadding="0">
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<tr><td valign="top"></td><td valign="top"><em>dx</em> </td><td>X offset </td></tr>
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<tr><td valign="top"></td><td valign="top"><em>dy</em> </td><td>Y offset</td></tr>
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<dl class="note" compact><dt><b>Note:</b></dt><dd>The changed rectangle is limited by the zoom base </dd></dl>
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Definition at line <a class="el" href="qwt__plot__zoomer_8cpp-source.html#l00488">488</a> of file <a class="el" href="qwt__plot__zoomer_8cpp-source.html">qwt_plot_zoomer.cpp</a>.
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References <a class="el" href="qwt__plot__zoomer_8cpp-source.html#l00503">move()</a>.
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<a class="anchor" name="6bfbb67129b1220df65685858c9d882c"></a><!-- doxytag: member="QwtPlotZoomer::move" ref="6bfbb67129b1220df65685858c9d882c" args="(double x, double y)" -->
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<div class="memitem">
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<div class="memproto">
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<table class="memname">
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<td class="memname">void QwtPlotZoomer::move </td>
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<td class="paramtype">double </td>
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<td class="paramname"> <em>x</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype">double </td>
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<td class="paramname"> <em>y</em></td><td> </td>
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<td></td><td></td><td width="100%"><code> [virtual, slot]</code></td>
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Move the the current zoom rectangle.<p>
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<dl compact><dt><b>Parameters:</b></dt><dd>
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<table border="0" cellspacing="2" cellpadding="0">
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<tr><td valign="top"></td><td valign="top"><em>x</em> </td><td>X value </td></tr>
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<tr><td valign="top"></td><td valign="top"><em>y</em> </td><td>Y value</td></tr>
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<dl class="see" compact><dt><b>See also:</b></dt><dd>QwtDoubleRect::move </dd></dl>
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<dl class="note" compact><dt><b>Note:</b></dt><dd>The changed rectangle is limited by the zoom base </dd></dl>
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Definition at line <a class="el" href="qwt__plot__zoomer_8cpp-source.html#l00503">503</a> of file <a class="el" href="qwt__plot__zoomer_8cpp-source.html">qwt_plot_zoomer.cpp</a>.
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References <a class="el" href="qwt__plot__zoomer_8cpp-source.html#l00379">rescale()</a>, <a class="el" href="qwt__plot__zoomer_8cpp-source.html#l00192">zoomBase()</a>, and <a class="el" href="qwt__plot__zoomer_8cpp-source.html#l00259">zoomRect()</a>.
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Referenced by <a class="el" href="qwt__plot__zoomer_8cpp-source.html#l00488">moveBy()</a>.
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<a class="anchor" name="eeed51dfa01136f00961e679dcbb9d9d"></a><!-- doxytag: member="QwtPlotZoomer::zoom" ref="eeed51dfa01136f00961e679dcbb9d9d" args="(const QwtDoubleRect &)" -->
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<div class="memitem">
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<div class="memproto">
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<table class="memname">
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<td class="memname">void QwtPlotZoomer::zoom </td>
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<td class="paramtype">const <a class="el" href="qwt__double__rect_8h.html#0c0dc4d33592fac4ad94734d8e9c4152">QwtDoubleRect</a> & </td>
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<td class="paramname"> <em>rect</em> </td>
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<td> ) </td>
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<td width="100%"><code> [virtual, slot]</code></td>
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Clears all rectangles above the current position of the zoom stack and pushs the intersection of <a class="el" href="class_qwt_plot_zoomer.html#261d13f67af6e02ba48a64b36f7b5aef">zoomRect()</a> and the normalized rect on it.<p>
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<dl class="note" compact><dt><b>Note:</b></dt><dd>If the maximal stack depth is reached, zoom is ignored. <p>
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The zoomed signal is emitted. </dd></dl>
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Definition at line <a class="el" href="qwt__plot__zoomer_8cpp-source.html#l00283">283</a> of file <a class="el" href="qwt__plot__zoomer_8cpp-source.html">qwt_plot_zoomer.cpp</a>.
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References <a class="el" href="qwt__plot__zoomer_8cpp-source.html#l00379">rescale()</a>, <a class="el" href="class_qwt_plot_zoomer.html#e4e9b90ccfb97f4eae54c667f79644ff">zoomed()</a>, and <a class="el" href="qwt__plot__zoomer_8cpp-source.html#l00259">zoomRect()</a>.
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Referenced by <a class="el" href="qwt__plot__zoomer_8cpp-source.html#l00611">end()</a>, <a class="el" href="qwt__plot__zoomer_8cpp-source.html#l00145">setMaxStackDepth()</a>, <a class="el" href="qwt__plot__zoomer_8cpp-source.html#l00465">widgetKeyPressEvent()</a>, and <a class="el" href="qwt__plot__zoomer_8cpp-source.html#l00442">widgetMouseReleaseEvent()</a>.
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<a class="anchor" name="0cee73f15c5791553cb52c4e7b3e881e"></a><!-- doxytag: member="QwtPlotZoomer::zoom" ref="0cee73f15c5791553cb52c4e7b3e881e" args="(int up)" -->
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<div class="memitem">
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<div class="memproto">
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<table class="memname">
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<td class="memname">void QwtPlotZoomer::zoom </td>
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<td class="paramtype">int </td>
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<td class="paramname"> <em>offset</em> </td>
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<td> ) </td>
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<td width="100%"><code> [virtual, slot]</code></td>
710
Activate a rectangle on the zoom stack with an offset relative to the current position. Negative values of offest will zoom out, positive zoom in. A value of 0 zooms out to the zoom base.<p>
711
<dl compact><dt><b>Parameters:</b></dt><dd>
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<table border="0" cellspacing="2" cellpadding="0">
713
<tr><td valign="top"></td><td valign="top"><em>offset</em> </td><td>Offset relative to the current position of the zoom stack. </td></tr>
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<dl class="note" compact><dt><b>Note:</b></dt><dd>The zoomed signal is emitted. </dd></dl>
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<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_plot_zoomer.html#b2a8af282a7052976e9c18b2d0c59db9">zoomRectIndex()</a> </dd></dl>
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Definition at line <a class="el" href="qwt__plot__zoomer_8cpp-source.html#l00320">320</a> of file <a class="el" href="qwt__plot__zoomer_8cpp-source.html">qwt_plot_zoomer.cpp</a>.
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References <a class="el" href="qwt__plot__zoomer_8cpp-source.html#l00379">rescale()</a>, <a class="el" href="class_qwt_plot_zoomer.html#e4e9b90ccfb97f4eae54c667f79644ff">zoomed()</a>, and <a class="el" href="qwt__plot__zoomer_8cpp-source.html#l00259">zoomRect()</a>.
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<a class="anchor" name="e4e9b90ccfb97f4eae54c667f79644ff"></a><!-- doxytag: member="QwtPlotZoomer::zoomed" ref="e4e9b90ccfb97f4eae54c667f79644ff" args="(const QwtDoubleRect &rect)" -->
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<div class="memitem">
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<div class="memproto">
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<table class="memname">
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<td class="memname">void QwtPlotZoomer::zoomed </td>
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<td class="paramtype">const <a class="el" href="qwt__double__rect_8h.html#0c0dc4d33592fac4ad94734d8e9c4152">QwtDoubleRect</a> & </td>
733
<td class="paramname"> <em>rect</em> </td>
734
<td> ) </td>
735
<td width="100%"><code> [signal]</code></td>
742
A signal emitting the <a class="el" href="class_qwt_plot_zoomer.html#261d13f67af6e02ba48a64b36f7b5aef">zoomRect()</a>, when the plot has been zoomed in or out.<p>
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<dl compact><dt><b>Parameters:</b></dt><dd>
744
<table border="0" cellspacing="2" cellpadding="0">
745
<tr><td valign="top"></td><td valign="top"><em>rect</em> </td><td>Current zoom rectangle. </td></tr>
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Referenced by <a class="el" href="qwt__plot__zoomer_8cpp-source.html#l00283">zoom()</a>.
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<a class="anchor" name="0d0f90bbd5fe99d5231b3cee00fffabe"></a><!-- doxytag: member="QwtPlotZoomer::rescale" ref="0d0f90bbd5fe99d5231b3cee00fffabe" args="()" -->
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<div class="memitem">
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<div class="memproto">
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<table class="memname">
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<td class="memname">void QwtPlotZoomer::rescale </td>
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<td class="paramname"> </td>
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<td> ) </td>
762
<td width="100%"><code> [protected, virtual]</code></td>
769
Adjust the observed plot to <a class="el" href="class_qwt_plot_zoomer.html#261d13f67af6e02ba48a64b36f7b5aef">zoomRect()</a><p>
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<dl class="note" compact><dt><b>Note:</b></dt><dd>Initiates <a class="el" href="class_qwt_plot.html#7b094e29b8e92b00e36517d0d7633c4b">QwtPlot::replot</a> </dd></dl>
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Definition at line <a class="el" href="qwt__plot__zoomer_8cpp-source.html#l00379">379</a> of file <a class="el" href="qwt__plot__zoomer_8cpp-source.html">qwt_plot_zoomer.cpp</a>.
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References <a class="el" href="qwt__plot_8cpp-source.html#l00190">QwtPlot::autoReplot()</a>, <a class="el" href="qwt__plot__axis_8cpp-source.html#l00235">QwtPlot::axisScaleDiv()</a>, <a class="el" href="qwt__scale__div_8h-source.html#l00111">QwtScaleDiv::hBound()</a>, <a class="el" href="qwt__scale__div_8h-source.html#l00102">QwtScaleDiv::lBound()</a>, <a class="el" href="qwt__plot__picker_8cpp-source.html#l00119">QwtPlotPicker::plot()</a>, <a class="el" href="qwt__plot_8cpp-source.html#l00363">QwtPlot::replot()</a>, <a class="el" href="qwt__plot__picker_8cpp-source.html#l00143">QwtPlotPicker::scaleRect()</a>, <a class="el" href="qwt__plot_8cpp-source.html#l00184">QwtPlot::setAutoReplot()</a>, <a class="el" href="qwt__plot__axis_8cpp-source.html#l00414">QwtPlot::setAxisScale()</a>, <a class="el" href="qwt__plot__picker_8cpp-source.html#l00183">QwtPlotPicker::xAxis()</a>, and <a class="el" href="qwt__plot__picker_8cpp-source.html#l00189">QwtPlotPicker::yAxis()</a>.
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Referenced by <a class="el" href="qwt__plot__zoomer_8cpp-source.html#l00503">move()</a>, <a class="el" href="qwt__plot__zoomer_8cpp-source.html#l00206">setZoomBase()</a>, and <a class="el" href="qwt__plot__zoomer_8cpp-source.html#l00283">zoom()</a>.
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<a class="anchor" name="27bb8d7911ef686f2a66bbc88df7e8d1"></a><!-- doxytag: member="QwtPlotZoomer::minZoomSize" ref="27bb8d7911ef686f2a66bbc88df7e8d1" args="() const" -->
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<div class="memitem">
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<div class="memproto">
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<table class="memname">
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<td class="memname"><a class="el" href="qwt__double__rect_8h.html#b86c0b8b4728646331f12743013c5b43">QwtDoubleSize</a> QwtPlotZoomer::minZoomSize </td>
787
<td class="paramname"> </td>
788
<td> ) </td>
789
<td width="100%"> const<code> [protected, virtual]</code></td>
796
Limit zooming by a minimum rectangle.
798
<dl class="return" compact><dt><b>Returns:</b></dt><dd><a class="el" href="class_qwt_plot_zoomer.html#dee8a101b06a37ec778038c789518e28">zoomBase()</a>.width() / 10e4, <a class="el" href="class_qwt_plot_zoomer.html#dee8a101b06a37ec778038c789518e28">zoomBase()</a>.height() / 10e4 </dd></dl>
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Definition at line <a class="el" href="qwt__plot__zoomer_8cpp-source.html#l00567">567</a> of file <a class="el" href="qwt__plot__zoomer_8cpp-source.html">qwt_plot_zoomer.cpp</a>.
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Referenced by <a class="el" href="qwt__plot__zoomer_8cpp-source.html#l00533">accept()</a>, <a class="el" href="qwt__plot__zoomer_8cpp-source.html#l00581">begin()</a>, and <a class="el" href="qwt__plot__zoomer_8cpp-source.html#l00611">end()</a>.
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<a class="anchor" name="abded662ecb3555b3a29cf3daacf79de"></a><!-- doxytag: member="QwtPlotZoomer::widgetMouseReleaseEvent" ref="abded662ecb3555b3a29cf3daacf79de" args="(QMouseEvent *)" -->
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<div class="memitem">
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<div class="memproto">
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<table class="memname">
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<td class="memname">void QwtPlotZoomer::widgetMouseReleaseEvent </td>
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<td class="paramtype">QMouseEvent * </td>
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<td class="paramname"> <em>me</em> </td>
815
<td> ) </td>
816
<td width="100%"><code> [protected, virtual]</code></td>
823
Qt::MidButton zooms out one position on the zoom stack, Qt::RightButton to the zoom base.<p>
824
Changes the current position on the stack, but doesn't pop any rectangle.<p>
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<dl class="note" compact><dt><b>Note:</b></dt><dd>The mouse events can be changed, using <a class="el" href="class_qwt_event_pattern.html#c63fb935c777421794d669aa63faec68">QwtEventPattern::setMousePattern</a>: 2, 1 </dd></dl>
828
Reimplemented from <a class="el" href="class_qwt_picker.html#c009633e005b6290e07b902f2a58e45e">QwtPicker</a>.
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Definition at line <a class="el" href="qwt__plot__zoomer_8cpp-source.html#l00442">442</a> of file <a class="el" href="qwt__plot__zoomer_8cpp-source.html">qwt_plot_zoomer.cpp</a>.
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References <a class="el" href="qwt__event__pattern_8cpp-source.html#l00193">QwtEventPattern::mouseMatch()</a>, <a class="el" href="qwt__picker_8cpp-source.html#l00961">QwtPicker::widgetMouseReleaseEvent()</a>, and <a class="el" href="qwt__plot__zoomer_8cpp-source.html#l00283">zoom()</a>.
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<a class="anchor" name="a44e42dcf37547a6b93d04a593f140c6"></a><!-- doxytag: member="QwtPlotZoomer::widgetKeyPressEvent" ref="a44e42dcf37547a6b93d04a593f140c6" args="(QKeyEvent *)" -->
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<div class="memitem">
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<div class="memproto">
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<table class="memname">
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<td class="memname">void QwtPlotZoomer::widgetKeyPressEvent </td>
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<td class="paramtype">QKeyEvent * </td>
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<td class="paramname"> <em>ke</em> </td>
844
<td> ) </td>
845
<td width="100%"><code> [protected, virtual]</code></td>
852
Qt::Key_Plus zooms out, Qt::Key_Minus zooms in one position on the zoom stack, Qt::Key_Escape zooms out to the zoom base.<p>
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Changes the current position on the stack, but doesn't pop any rectangle.<p>
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<dl class="note" compact><dt><b>Note:</b></dt><dd>The keys codes can be changed, using <a class="el" href="class_qwt_event_pattern.html#2c3b52e4f470086fb6b883ff1f48b711">QwtEventPattern::setKeyPattern</a>: 3, 4, 5 </dd></dl>
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Reimplemented from <a class="el" href="class_qwt_picker.html#f5bc441b2fc143363563922a3b3c70ae">QwtPicker</a>.
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Definition at line <a class="el" href="qwt__plot__zoomer_8cpp-source.html#l00465">465</a> of file <a class="el" href="qwt__plot__zoomer_8cpp-source.html">qwt_plot_zoomer.cpp</a>.
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References <a class="el" href="qwt__picker_8cpp-source.html#l01263">QwtPicker::isActive()</a>, <a class="el" href="qwt__event__pattern_8cpp-source.html#l00248">QwtEventPattern::keyMatch()</a>, <a class="el" href="qwt__picker_8cpp-source.html#l01015">QwtPicker::widgetKeyPressEvent()</a>, and <a class="el" href="qwt__plot__zoomer_8cpp-source.html#l00283">zoom()</a>.
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<a class="anchor" name="a54bb05797c0468c0f8de4217dce24dd"></a><!-- doxytag: member="QwtPlotZoomer::begin" ref="a54bb05797c0468c0f8de4217dce24dd" args="()" -->
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<div class="memitem">
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<div class="memproto">
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<table class="memname">
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<td class="memname">void QwtPlotZoomer::begin </td>
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<td class="paramname"> </td>
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<td> ) </td>
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<td width="100%"><code> [protected, virtual]</code></td>
880
Rejects selections, when the stack depth is too deep, or the zoomed rectangle is <a class="el" href="class_qwt_plot_zoomer.html#27bb8d7911ef686f2a66bbc88df7e8d1">minZoomSize()</a>.<p>
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<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_plot_zoomer.html#27bb8d7911ef686f2a66bbc88df7e8d1">minZoomSize()</a>, <a class="el" href="class_qwt_plot_zoomer.html#b541148fa7d57b8102d3d70ab9daccc4">maxStackDepth()</a> </dd></dl>
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Reimplemented from <a class="el" href="class_qwt_picker.html#49cb19aea451e275c5d376235e5a1d83">QwtPicker</a>.
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Definition at line <a class="el" href="qwt__plot__zoomer_8cpp-source.html#l00581">581</a> of file <a class="el" href="qwt__plot__zoomer_8cpp-source.html">qwt_plot_zoomer.cpp</a>.
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References <a class="el" href="qwt__picker_8cpp-source.html#l01134">QwtPicker::begin()</a>, and <a class="el" href="qwt__plot__zoomer_8cpp-source.html#l00567">minZoomSize()</a>.
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<a class="anchor" name="c7d10eb27858ccfebebecab5d69ecbb3"></a><!-- doxytag: member="QwtPlotZoomer::end" ref="c7d10eb27858ccfebebecab5d69ecbb3" args="(bool ok=true)" -->
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<div class="memitem">
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<div class="memproto">
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<table class="memname">
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<td class="memname">bool QwtPlotZoomer::end </td>
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<td class="paramtype">bool </td>
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<td class="paramname"> <em>ok</em> = <code>true</code> </td>
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<td> ) </td>
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<td width="100%"><code> [protected, virtual]</code></td>
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Expand the selected rectangle to <a class="el" href="class_qwt_plot_zoomer.html#27bb8d7911ef686f2a66bbc88df7e8d1">minZoomSize()</a> and zoom in if accepted.<p>
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<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_plot_zoomer.html#86898c6696ee0706a3ac6b61018a112e">QwtPlotZoomer::accept()</a>a, <a class="el" href="class_qwt_plot_zoomer.html#27bb8d7911ef686f2a66bbc88df7e8d1">QwtPlotZoomer::minZoomSize()</a> </dd></dl>
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Reimplemented from <a class="el" href="class_qwt_plot_picker.html#9fceb663542b6f9b0a358e9419406423">QwtPlotPicker</a>.
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Definition at line <a class="el" href="qwt__plot__zoomer_8cpp-source.html#l00611">611</a> of file <a class="el" href="qwt__plot__zoomer_8cpp-source.html">qwt_plot_zoomer.cpp</a>.
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References <a class="el" href="qwt__plot__picker_8cpp-source.html#l00273">QwtPlotPicker::end()</a>, <a class="el" href="qwt__plot__picker_8cpp-source.html#l00332">QwtPlotPicker::invTransform()</a>, <a class="el" href="qwt__plot__zoomer_8cpp-source.html#l00567">minZoomSize()</a>, <a class="el" href="qwt__plot__picker_8cpp-source.html#l00119">QwtPlotPicker::plot()</a>, <a class="el" href="qwt__picker_8cpp-source.html#l01269">QwtPicker::selection()</a>, <a class="el" href="qwt__plot__zoomer_8cpp-source.html#l00283">zoom()</a>, and <a class="el" href="qwt__plot__zoomer_8cpp-source.html#l00259">zoomRect()</a>.
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<a class="anchor" name="86898c6696ee0706a3ac6b61018a112e"></a><!-- doxytag: member="QwtPlotZoomer::accept" ref="86898c6696ee0706a3ac6b61018a112e" args="(QwtPolygon &) const " -->
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<div class="memitem">
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<div class="memproto">
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<table class="memname">
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<td class="memname">bool QwtPlotZoomer::accept </td>
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<td class="paramtype">QwtPolygon & </td>
927
<td class="paramname"> <em>pa</em> </td>
928
<td> ) </td>
929
<td width="100%"> const<code> [protected, virtual]</code></td>
936
Check and correct a selected rectangle.
938
Reject rectangles with a hight or width < 2, otherwise expand the selected rectangle to a minimum size of 11x11 and accept it.<p>
939
<dl class="return" compact><dt><b>Returns:</b></dt><dd>true If rect is accepted, or has been changed to a accepted rectangle. </dd></dl>
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Reimplemented from <a class="el" href="class_qwt_picker.html#726e38a25659db96218888e4625dffba">QwtPicker</a>.
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Definition at line <a class="el" href="qwt__plot__zoomer_8cpp-source.html#l00533">533</a> of file <a class="el" href="qwt__plot__zoomer_8cpp-source.html">qwt_plot_zoomer.cpp</a>.
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References <a class="el" href="qwt__plot__zoomer_8cpp-source.html#l00567">minZoomSize()</a>.
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<hr size="1"><address style="align: right;"><small>Generated on Sat May 24 18:48:57 2008 for Qwt User's Guide by
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<a href="http://www.doxygen.org/index.html">
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<img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.5.0 </small></address>
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qwt-5.1.1/doc/html/class_qwt_plot_zoomer.html
