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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_double_range.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_double_range.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="preprocessor">#ifndef QWT_DOUBLE_RANGE_H</span><a name="l00011"></a>00011 <span class="preprocessor"></span><span class="preprocessor">#define QWT_DOUBLE_RANGE_H</span><a name="l00012"></a>00012 <span class="preprocessor"></span><a name="l00013"></a>00013 <span class="preprocessor">#include "qwt_global.h"</span><a name="l00014"></a>00014 <a name="l00031"></a><a class="code" href="class_qwt_double_range.html">00031</a> <span class="keyword">class </span>QWT_EXPORT <a class="code" href="class_qwt_double_range.html">QwtDoubleRange</a><a name="l00032"></a>00032 {<a name="l00033"></a>00033 <span class="keyword">public</span>:<a name="l00034"></a>00034 <a class="code" href="class_qwt_double_range.html">QwtDoubleRange</a>();<a name="l00035"></a>00035 <span class="keyword">virtual</span> ~<a class="code" href="class_qwt_double_range.html">QwtDoubleRange</a>();<a name="l00036"></a>00036 <a name="l00037"></a>00037 <span class="keywordtype">void</span> setRange(<span class="keywordtype">double</span> vmin, <span class="keywordtype">double</span> vmax, <span class="keywordtype">double</span> vstep = 0.0,<a name="l00038"></a>00038 <span class="keywordtype">int</span> pagesize = 1);<a name="l00039"></a>00039 <a name="l00040"></a>00040 <span class="keywordtype">void</span> setValid(<span class="keywordtype">bool</span>);<a name="l00041"></a>00041 <span class="keywordtype">bool</span> isValid() <span class="keyword">const</span>;<a name="l00042"></a>00042 <a name="l00043"></a>00043 <span class="keyword">virtual</span> <span class="keywordtype">void</span> setValue(<span class="keywordtype">double</span>);<a name="l00044"></a>00044 <span class="keywordtype">double</span> value() <span class="keyword">const</span>;<a name="l00045"></a>00045 <a name="l00046"></a>00046 <span class="keywordtype">void</span> setPeriodic(<span class="keywordtype">bool</span> tf);<a name="l00047"></a>00047 <span class="keywordtype">bool</span> periodic() <span class="keyword">const</span>;<a name="l00048"></a>00048 <a name="l00049"></a>00049 <span class="keywordtype">void</span> setStep(<span class="keywordtype">double</span>);<a name="l00050"></a>00050 <span class="keywordtype">double</span> step() <span class="keyword">const</span>;<a name="l00051"></a>00051 <a name="l00052"></a>00052 <span class="keywordtype">double</span> maxValue() <span class="keyword">const</span>;<a name="l00053"></a>00053 <span class="keywordtype">double</span> minValue() <span class="keyword">const</span>; <a name="l00054"></a>00054 <a name="l00055"></a>00055 <span class="keywordtype">int</span> pageSize() <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> incValue(<span class="keywordtype">int</span>);<a name="l00058"></a>00058 <span class="keyword">virtual</span> <span class="keywordtype">void</span> incPages(<span class="keywordtype">int</span>);<a name="l00059"></a>00059 <span class="keyword">virtual</span> <span class="keywordtype">void</span> fitValue(<span class="keywordtype">double</span>);<a name="l00060"></a>00060 <a name="l00061"></a>00061 <span class="keyword">protected</span>:<a name="l00062"></a>00062 <a name="l00063"></a>00063 <span class="keywordtype">double</span> exactValue() <span class="keyword">const</span>;<a name="l00064"></a>00064 <span class="keywordtype">double</span> exactPrevValue() <span class="keyword">const</span>;<a name="l00065"></a>00065 <span class="keywordtype">double</span> prevValue() <span class="keyword">const</span>;<a name="l00066"></a>00066 <a name="l00067"></a>00067 <span class="keyword">virtual</span> <span class="keywordtype">void</span> valueChange();<a name="l00068"></a>00068 <span class="keyword">virtual</span> <span class="keywordtype">void</span> stepChange();<a name="l00069"></a>00069 <span class="keyword">virtual</span> <span class="keywordtype">void</span> rangeChange();<a name="l00070"></a>00070 <a name="l00071"></a>00071 <span class="keyword">private</span>:<a name="l00072"></a>00072 <span class="keywordtype">void</span> setNewValue(<span class="keywordtype">double</span> x, <span class="keywordtype">bool</span> align = <span class="keyword">false</span>);<a name="l00073"></a>00073 <a name="l00074"></a>00074 <span class="keywordtype">double</span> d_minValue;<a name="l00075"></a>00075 <span class="keywordtype">double</span> d_maxValue;<a name="l00076"></a>00076 <span class="keywordtype">double</span> d_step;<a name="l00077"></a>00077 <span class="keywordtype">int</span> d_pageSize;<a name="l00078"></a>00078 <a name="l00079"></a>00079 <span class="keywordtype">bool</span> d_isValid;<a name="l00080"></a>00080 <span class="keywordtype">double</span> d_value;<a name="l00081"></a>00081 <span class="keywordtype">double</span> d_exactValue;<a name="l00082"></a>00082 <span class="keywordtype">double</span> d_exactPrevValue;<a name="l00083"></a>00083 <span class="keywordtype">double</span> d_prevValue;<a name="l00084"></a>00084 <a name="l00085"></a>00085 <span class="keywordtype">bool</span> d_periodic;<a name="l00086"></a>00086 };<a name="l00087"></a>00087 <a name="l00088"></a>00088 <span class="preprocessor">#endif</span></pre></div><hr size="1"><address style="align: right;"><small>Generated on Mon Feb 26 21:22:36 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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