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<h1>qwt_plot_zoomer.h</h1>  </div>
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<div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/* -*- mode: C++ ; c-file-style: &quot;stroustrup&quot; -*- *****************************</span>
<a name="l00002"></a>00002 <span class="comment"> * Qwt Widget Library</span>
<a name="l00003"></a>00003 <span class="comment"> * Copyright (C) 1997   Josef Wilgen</span>
<a name="l00004"></a>00004 <span class="comment"> * Copyright (C) 2002   Uwe Rathmann</span>
<a name="l00005"></a>00005 <span class="comment"> *</span>
<a name="l00006"></a>00006 <span class="comment"> * This library is free software; you can redistribute it and/or</span>
<a name="l00007"></a>00007 <span class="comment"> * modify it under the terms of the Qwt License, Version 1.0</span>
<a name="l00008"></a>00008 <span class="comment"> *****************************************************************************/</span>
<a name="l00009"></a>00009 
<a name="l00010"></a>00010 <span class="preprocessor">#ifndef QWT_PLOT_ZOOMER_H</span>
<a name="l00011"></a>00011 <span class="preprocessor"></span><span class="preprocessor">#define QWT_PLOT_ZOOMER_H</span>
<a name="l00012"></a>00012 <span class="preprocessor"></span>
<a name="l00013"></a>00013 <span class="preprocessor">#include &quot;qwt_global.h&quot;</span>
<a name="l00014"></a>00014 <span class="preprocessor">#include &quot;qwt_plot_picker.h&quot;</span>
<a name="l00015"></a>00015 <span class="preprocessor">#include &lt;qstack.h&gt;</span>
<a name="l00016"></a>00016 
<a name="l00041"></a><a class="code" href="class_qwt_plot_zoomer.html">00041</a> <span class="keyword">class </span>QWT_EXPORT <a class="code" href="class_qwt_plot_zoomer.html" title="QwtPlotZoomer provides stacked zooming for a plot widget.">QwtPlotZoomer</a>: <span class="keyword">public</span> <a class="code" href="class_qwt_plot_picker.html" title="QwtPlotPicker provides selections on a plot canvas.">QwtPlotPicker</a>
<a name="l00042"></a>00042 {
<a name="l00043"></a>00043     Q_OBJECT
<a name="l00044"></a>00044 <span class="keyword">public</span>:
<a name="l00045"></a>00045     <span class="keyword">explicit</span> <a class="code" href="class_qwt_plot_zoomer.html" title="QwtPlotZoomer provides stacked zooming for a plot widget.">QwtPlotZoomer</a>( <a class="code" href="class_qwt_plot_canvas.html" title="Canvas of a QwtPlot.">QwtPlotCanvas</a> *, <span class="keywordtype">bool</span> doReplot = <span class="keyword">true</span> );
<a name="l00046"></a>00046     <span class="keyword">explicit</span> <a class="code" href="class_qwt_plot_zoomer.html" title="QwtPlotZoomer provides stacked zooming for a plot widget.">QwtPlotZoomer</a>( <span class="keywordtype">int</span> xAxis, <span class="keywordtype">int</span> yAxis,
<a name="l00047"></a>00047                             <a class="code" href="class_qwt_plot_canvas.html" title="Canvas of a QwtPlot.">QwtPlotCanvas</a> *, <span class="keywordtype">bool</span> doReplot = <span class="keyword">true</span> );
<a name="l00048"></a>00048 
<a name="l00049"></a>00049     <span class="keyword">virtual</span> ~<a class="code" href="class_qwt_plot_zoomer.html" title="QwtPlotZoomer provides stacked zooming for a plot widget.">QwtPlotZoomer</a>();
<a name="l00050"></a>00050 
<a name="l00051"></a>00051     <span class="keyword">virtual</span> <span class="keywordtype">void</span> setZoomBase( <span class="keywordtype">bool</span> doReplot = <span class="keyword">true</span> );
<a name="l00052"></a>00052     <span class="keyword">virtual</span> <span class="keywordtype">void</span> setZoomBase( <span class="keyword">const</span> QRectF &amp; );
<a name="l00053"></a>00053 
<a name="l00054"></a>00054     QRectF zoomBase() <span class="keyword">const</span>;
<a name="l00055"></a>00055     QRectF zoomRect() <span class="keyword">const</span>;
<a name="l00056"></a>00056 
<a name="l00057"></a>00057     <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="class_qwt_plot_picker.html#aa901c86543585c7056133a5cb6652e3d">setAxis</a>( <span class="keywordtype">int</span> xAxis, <span class="keywordtype">int</span> yAxis );
<a name="l00058"></a>00058 
<a name="l00059"></a>00059     <span class="keywordtype">void</span> setMaxStackDepth( <span class="keywordtype">int</span> );
<a name="l00060"></a>00060     <span class="keywordtype">int</span> maxStackDepth() <span class="keyword">const</span>;
<a name="l00061"></a>00061 
<a name="l00062"></a>00062     <span class="keyword">const</span> QStack&lt;QRectF&gt; &amp;zoomStack() <span class="keyword">const</span>;
<a name="l00063"></a>00063     <span class="keywordtype">void</span> setZoomStack( <span class="keyword">const</span> QStack&lt;QRectF&gt; &amp;,
<a name="l00064"></a>00064         <span class="keywordtype">int</span> zoomRectIndex = -1 );
<a name="l00065"></a>00065 
<a name="l00066"></a>00066     uint zoomRectIndex() <span class="keyword">const</span>;
<a name="l00067"></a>00067 
<a name="l00068"></a>00068 <span class="keyword">public</span> Q_SLOTS:
<a name="l00069"></a>00069     <span class="keywordtype">void</span> moveBy( <span class="keywordtype">double</span> x, <span class="keywordtype">double</span> y );
<a name="l00070"></a>00070     <span class="keyword">virtual</span> <span class="keywordtype">void</span> moveTo( <span class="keyword">const</span> QPointF &amp; );
<a name="l00071"></a>00071 
<a name="l00072"></a>00072     <span class="keyword">virtual</span> <span class="keywordtype">void</span> zoom( <span class="keyword">const</span> QRectF &amp; );
<a name="l00073"></a>00073     <span class="keyword">virtual</span> <span class="keywordtype">void</span> zoom( <span class="keywordtype">int</span> up );
<a name="l00074"></a>00074 
<a name="l00075"></a>00075 Q_SIGNALS:
<a name="l00083"></a>00083     <span class="keywordtype">void</span> zoomed( <span class="keyword">const</span> QRectF &amp;rect );
<a name="l00084"></a>00084 
<a name="l00085"></a>00085 <span class="keyword">protected</span>:
<a name="l00086"></a>00086     <span class="keyword">virtual</span> <span class="keywordtype">void</span> rescale();
<a name="l00087"></a>00087 
<a name="l00088"></a>00088     <span class="keyword">virtual</span> QSizeF minZoomSize() <span class="keyword">const</span>;
<a name="l00089"></a>00089 
<a name="l00090"></a>00090     <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="class_qwt_picker.html#ac009633e005b6290e07b902f2a58e45e">widgetMouseReleaseEvent</a>( QMouseEvent * );
<a name="l00091"></a>00091     <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="class_qwt_picker.html#af5bc441b2fc143363563922a3b3c70ae">widgetKeyPressEvent</a>( QKeyEvent * );
<a name="l00092"></a>00092 
<a name="l00093"></a>00093     <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="class_qwt_picker.html#a49cb19aea451e275c5d376235e5a1d83">begin</a>();
<a name="l00094"></a>00094     <span class="keyword">virtual</span> <span class="keywordtype">bool</span> <a class="code" href="class_qwt_plot_picker.html#a9fceb663542b6f9b0a358e9419406423">end</a>( <span class="keywordtype">bool</span> ok = <span class="keyword">true</span> );
<a name="l00095"></a>00095     <span class="keyword">virtual</span> <span class="keywordtype">bool</span> <a class="code" href="class_qwt_picker.html#a2c93d65c27fadf2f2522e81f04358604" title="Validate and fixup the selection.">accept</a>( QPolygon &amp; ) <span class="keyword">const</span>;
<a name="l00096"></a>00096 
<a name="l00097"></a>00097 <span class="keyword">private</span>:
<a name="l00098"></a>00098     <span class="keywordtype">void</span> init( <span class="keywordtype">bool</span> doReplot );
<a name="l00099"></a>00099 
<a name="l00100"></a>00100     <span class="keyword">class </span>PrivateData;
<a name="l00101"></a>00101     PrivateData *d_data;
<a name="l00102"></a>00102 };
<a name="l00103"></a>00103 
<a name="l00104"></a>00104 <span class="preprocessor">#endif</span>
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