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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head><meta http-equiv="Content-Type" content="text/html;charset=iso-8859-1"><title>Qwt User's Guide: qwt_plot_zoomer.h Source File</title><link href="doxygen.css" rel="stylesheet" type="text/css"><link href="tabs.css" rel="stylesheet" type="text/css"></head><body><!-- Generated by Doxygen 1.4.6 --><div class="tabs"> <ul> <li><a href="index.html"><span>Main Page</span></a></li> <li><a href="classes.html"><span>Classes</span></a></li> <li id="current"><a href="files.html"><span>Files</span></a></li> <li><a href="pages.html"><span>Related Pages</span></a></li> </ul></div><h1>qwt_plot_zoomer.h</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/* -*- mode: C++ ; c-file-style: "stroustrup" -*- *****************************</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="comment">// vim: expandtab</span><a name="l00011"></a>00011 <a name="l00012"></a>00012 <span class="preprocessor">#ifndef QWT_PLOT_ZOOMER_H</span><a name="l00013"></a>00013 <span class="preprocessor"></span><span class="preprocessor">#define QWT_PLOT_ZOOMER_H</span><a name="l00014"></a>00014 <span class="preprocessor"></span><a name="l00015"></a>00015 <span class="preprocessor">#include <qglobal.h></span><a name="l00016"></a>00016 <span class="preprocessor">#if QT_VERSION < 0x040000</span><a name="l00017"></a>00017 <span class="preprocessor"></span><span class="preprocessor">#include <qvaluestack.h></span><a name="l00018"></a>00018 <span class="preprocessor">#else</span><a name="l00019"></a>00019 <span class="preprocessor"></span><span class="preprocessor">#include <qstack.h></span><a name="l00020"></a>00020 <span class="preprocessor">#endif</span><a name="l00021"></a>00021 <span class="preprocessor"></span><a name="l00022"></a>00022 <span class="preprocessor">#include "qwt_double_rect.h"</span><a name="l00023"></a>00023 <span class="preprocessor">#include "qwt_plot_picker.h"</span><a name="l00024"></a>00024 <a name="l00049"></a><a class="code" href="class_qwt_plot_zoomer.html">00049</a> <span class="keyword">class </span>QWT_EXPORT <a class="code" href="class_qwt_plot_zoomer.html">QwtPlotZoomer</a>: <span class="keyword">public</span> <a class="code" href="class_qwt_plot_picker.html">QwtPlotPicker</a><a name="l00050"></a>00050 {<a name="l00051"></a>00051 Q_OBJECT<a name="l00052"></a>00052 <span class="keyword">public</span>:<a name="l00053"></a>00053 <span class="keyword">explicit</span> <a class="code" href="class_qwt_plot_zoomer.html">QwtPlotZoomer</a>(<a class="code" href="class_qwt_plot_canvas.html">QwtPlotCanvas</a> *, <span class="keywordtype">bool</span> doReplot = <span class="keyword">true</span>);<a name="l00054"></a>00054 <span class="keyword">explicit</span> <a class="code" href="class_qwt_plot_zoomer.html">QwtPlotZoomer</a>(<span class="keywordtype">int</span> xAxis, <span class="keywordtype">int</span> yAxis, <a name="l00055"></a>00055 <a class="code" href="class_qwt_plot_canvas.html">QwtPlotCanvas</a> *, <span class="keywordtype">bool</span> doReplot = <span class="keyword">true</span>);<a name="l00056"></a>00056 <span class="keyword">explicit</span> <a class="code" href="class_qwt_plot_zoomer.html">QwtPlotZoomer</a>(<span class="keywordtype">int</span> xAxis, <span class="keywordtype">int</span> yAxis, <span class="keywordtype">int</span> selectionFlags,<a name="l00057"></a>00057 DisplayMode trackerMode, <a class="code" href="class_qwt_plot_canvas.html">QwtPlotCanvas</a> *,<a name="l00058"></a>00058 <span class="keywordtype">bool</span> doReplot = <span class="keyword">true</span>);<a name="l00059"></a>00059 <a name="l00060"></a>00060 <span class="keyword">virtual</span> ~<a class="code" href="class_qwt_plot_zoomer.html">QwtPlotZoomer</a>();<a name="l00061"></a>00061 <a name="l00062"></a>00062 <span class="keyword">virtual</span> <span class="keywordtype">void</span> setZoomBase();<a name="l00063"></a>00063 <span class="keyword">virtual</span> <span class="keywordtype">void</span> setZoomBase(<span class="keyword">const</span> QwtDoubleRect &);<a name="l00064"></a>00064 <a name="l00065"></a>00065 QwtDoubleRect zoomBase() <span class="keyword">const</span>;<a name="l00066"></a>00066 QwtDoubleRect zoomRect() <span class="keyword">const</span>;<a name="l00067"></a>00067 <a name="l00068"></a>00068 <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="class_qwt_plot_picker.html#a901c86543585c7056133a5cb6652e3d">setAxis</a>(<span class="keywordtype">int</span> xAxis, <span class="keywordtype">int</span> yAxis);<a name="l00069"></a>00069 <a name="l00070"></a>00070 <span class="keywordtype">void</span> setMaxStackDepth(<span class="keywordtype">int</span>);<a name="l00071"></a>00071 <span class="keywordtype">int</span> maxStackDepth() <span class="keyword">const</span>;<a name="l00072"></a>00072 <a name="l00073"></a>00073 <span class="preprocessor">#if QT_VERSION < 0x040000</span><a name="l00074"></a>00074 <span class="preprocessor"></span> <span class="keyword">const</span> QValueStack<QwtDoubleRect> &zoomStack() <span class="keyword">const</span>;<a name="l00075"></a>00075 <span class="preprocessor">#else</span><a name="l00076"></a>00076 <span class="preprocessor"></span> <span class="keyword">const</span> QStack<QwtDoubleRect> &zoomStack() <span class="keyword">const</span>;<a name="l00077"></a>00077 <span class="preprocessor">#endif</span><a name="l00078"></a>00078 <span class="preprocessor"></span> uint zoomRectIndex() <span class="keyword">const</span>;<a name="l00079"></a>00079 <a name="l00080"></a>00080 <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="class_qwt_picker.html#e93fe995c8c581ac33a9f3445ea5e7b9">setSelectionFlags</a>(<span class="keywordtype">int</span>);<a name="l00081"></a>00081 <a name="l00082"></a>00082 <span class="keyword">public</span> slots:<a name="l00083"></a>00083 <span class="keywordtype">void</span> moveBy(<span class="keywordtype">double</span> x, <span class="keywordtype">double</span> y);<a name="l00084"></a>00084 <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="class_qwt_plot_picker.html#7a979d23cd4d398e309409e76635bcf4">move</a>(<span class="keywordtype">double</span> x, <span class="keywordtype">double</span> y);<a name="l00085"></a>00085 <a name="l00086"></a>00086 <span class="keyword">virtual</span> <span class="keywordtype">void</span> zoom(<span class="keyword">const</span> QwtDoubleRect &);<a name="l00087"></a>00087 <span class="keyword">virtual</span> <span class="keywordtype">void</span> zoom(<span class="keywordtype">int</span> up);<a name="l00088"></a>00088 <a name="l00089"></a>00089 signals:<a name="l00097"></a>00097 <span class="keywordtype">void</span> zoomed(<span class="keyword">const</span> QwtDoubleRect &rect);<a name="l00098"></a>00098 <a name="l00099"></a>00099 <span class="keyword">protected</span>:<a name="l00100"></a>00100 <span class="keyword">virtual</span> <span class="keywordtype">void</span> rescale();<a name="l00101"></a>00101 <a name="l00102"></a>00102 <span class="keyword">virtual</span> QwtDoubleSize minZoomSize() <span class="keyword">const</span>;<a name="l00103"></a>00103 <a name="l00104"></a>00104 <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="class_qwt_picker.html#c009633e005b6290e07b902f2a58e45e">widgetMouseReleaseEvent</a>(QMouseEvent *);<a name="l00105"></a>00105 <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="class_qwt_picker.html#f5bc441b2fc143363563922a3b3c70ae">widgetKeyPressEvent</a>(QKeyEvent *);<a name="l00106"></a>00106 <a name="l00107"></a>00107 <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="class_qwt_picker.html#49cb19aea451e275c5d376235e5a1d83">begin</a>();<a name="l00108"></a>00108 <span class="keyword">virtual</span> <span class="keywordtype">bool</span> <a class="code" href="class_qwt_plot_picker.html#9fceb663542b6f9b0a358e9419406423">end</a>(<span class="keywordtype">bool</span> ok = <span class="keyword">true</span>);<a name="l00109"></a>00109 <span class="keyword">virtual</span> <span class="keywordtype">bool</span> <a class="code" href="class_qwt_picker.html#c59b7fde6b198f76ea91b4b1a4015af5">accept</a>(QwtPolygon &) <span class="keyword">const</span>;<a name="l00110"></a>00110 <a name="l00111"></a>00111 <span class="keyword">private</span>:<a name="l00112"></a>00112 <span class="keywordtype">void</span> init(<span class="keywordtype">int</span> selectionFlags, DisplayMode trackerMode, <span class="keywordtype">bool</span> doReplot);<a name="l00113"></a>00113 <a name="l00114"></a>00114 <span class="keyword">class </span>PrivateData;<a name="l00115"></a>00115 PrivateData *d_data;<a name="l00116"></a>00116 };<a name="l00117"></a>00117 <a name="l00118"></a>00118 <span class="preprocessor">#endif</span></pre></div><hr size="1"><address style="align: right;"><small>Generated on Mon Feb 26 21:22:38 2007 for Qwt User's Guide by <a href="http://www.doxygen.org/index.html"><img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.4.6 </small></address></body></html>⌨️ 快捷键说明
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