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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_scale_div.cpp 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_scale_div.cpp</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">#include "qwt_scale_div.h"</span><a name="l00011"></a>00011 <span class="preprocessor">#include "qwt_math.h"</span><a name="l00012"></a>00012 <span class="preprocessor">#include "qwt_double_interval.h"</span><a name="l00013"></a>00013 <a name="l00015"></a><a class="code" href="class_qwt_scale_div.html#e986a8a451440876b60db561457c952f">00015</a> <a class="code" href="class_qwt_scale_div.html#e986a8a451440876b60db561457c952f">QwtScaleDiv::QwtScaleDiv</a>():<a name="l00016"></a>00016 d_lBound(0.0),<a name="l00017"></a>00017 d_hBound(0.0),<a name="l00018"></a>00018 d_isValid(false)<a name="l00019"></a>00019 {<a name="l00020"></a>00020 }<a name="l00021"></a>00021 <a name="l00028"></a><a class="code" href="class_qwt_scale_div.html#202460ccb320a9781068494a8ab9c6a5">00028</a> <a class="code" href="class_qwt_scale_div.html#e986a8a451440876b60db561457c952f">QwtScaleDiv::QwtScaleDiv</a>(<a name="l00029"></a>00029 <span class="keyword">const</span> <a class="code" href="class_qwt_double_interval.html">QwtDoubleInterval</a> &interval, <a name="l00030"></a>00030 QwtValueList ticks[NTickTypes]):<a name="l00031"></a>00031 d_lBound(interval.minValue()),<a name="l00032"></a>00032 d_hBound(interval.maxValue()),<a name="l00033"></a>00033 d_isValid(true)<a name="l00034"></a>00034 {<a name="l00035"></a>00035 <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i = 0; i < NTickTypes; i++ )<a name="l00036"></a>00036 d_ticks[i] = <a class="code" href="class_qwt_scale_div.html#c6310b93e4b505e62d2141ba6a8e90ee">ticks</a>[i];<a name="l00037"></a>00037 }<a name="l00038"></a>00038 <a name="l00046"></a><a class="code" href="class_qwt_scale_div.html#839ec8a73043af53796519e3aef3ab00">00046</a> <a class="code" href="class_qwt_scale_div.html#e986a8a451440876b60db561457c952f">QwtScaleDiv::QwtScaleDiv</a>(<a name="l00047"></a>00047 <span class="keywordtype">double</span> lBound, <span class="keywordtype">double</span> hBound,<a name="l00048"></a>00048 QwtValueList ticks[NTickTypes]):<a name="l00049"></a>00049 d_lBound(lBound),<a name="l00050"></a>00050 d_hBound(hBound),<a name="l00051"></a>00051 d_isValid(true)<a name="l00052"></a>00052 {<a name="l00053"></a>00053 <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i = 0; i < NTickTypes; i++ )<a name="l00054"></a>00054 d_ticks[i] = <a class="code" href="class_qwt_scale_div.html#c6310b93e4b505e62d2141ba6a8e90ee">ticks</a>[i];<a name="l00055"></a>00055 }<a name="l00056"></a>00056 <a name="l00061"></a><a class="code" href="class_qwt_scale_div.html#b8880b60a0cb338e9ec838c5e12a09a7">00061</a> <span class="keywordtype">int</span> <a class="code" href="class_qwt_scale_div.html#b8880b60a0cb338e9ec838c5e12a09a7">QwtScaleDiv::operator==</a>(<span class="keyword">const</span> <a class="code" href="class_qwt_scale_div.html">QwtScaleDiv</a> &other)<span class="keyword"> const</span><a name="l00062"></a>00062 <span class="keyword"></span>{<a name="l00063"></a>00063 <span class="keywordflow">if</span> ( d_lBound != other.<a class="code" href="class_qwt_scale_div.html#fd41c4fc31059e8d4f4c0e0d0f88da5b">d_lBound</a> ||<a name="l00064"></a>00064 d_hBound != other.<a class="code" href="class_qwt_scale_div.html#9d6685a6ba5b675e0e55a51a5e93e211">d_hBound</a> ||<a name="l00065"></a>00065 d_isValid != other.<a class="code" href="class_qwt_scale_div.html#0272eb504812da27602ec9e271af96a3">d_isValid</a> )<a name="l00066"></a>00066 {<a name="l00067"></a>00067 <span class="keywordflow">return</span> <span class="keyword">false</span>;<a name="l00068"></a>00068 }<a name="l00069"></a>00069 <a name="l00070"></a>00070 <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i = 0; i < NTickTypes; i++ )<a name="l00071"></a>00071 {<a name="l00072"></a>00072 <span class="keywordflow">if</span> ( d_ticks[i] != other.<a class="code" href="class_qwt_scale_div.html#b5d88582765fdbee07ae4a783fd22c98">d_ticks</a>[i] )<a name="l00073"></a>00073 <span class="keywordflow">return</span> <span class="keyword">false</span>;<a name="l00074"></a>00074 }<a name="l00075"></a>00075 <a name="l00076"></a>00076 <span class="keywordflow">return</span> <span class="keyword">true</span>;<a name="l00077"></a>00077 }<a name="l00078"></a>00078 <a name="l00083"></a><a class="code" href="class_qwt_scale_div.html#9315e9450cad83a60a4e4818e8d22e56">00083</a> <span class="keywordtype">int</span> <a class="code" href="class_qwt_scale_div.html#9315e9450cad83a60a4e4818e8d22e56">QwtScaleDiv::operator!=</a>(<span class="keyword">const</span> <a class="code" href="class_qwt_scale_div.html">QwtScaleDiv</a> &s)<span class="keyword"> const</span><a name="l00084"></a>00084 <span class="keyword"></span>{<a name="l00085"></a>00085 <span class="keywordflow">return</span> (!(*<span class="keyword">this</span> == s));<a name="l00086"></a>00086 }<a name="l00087"></a>00087 <a name="l00089"></a><a class="code" href="class_qwt_scale_div.html#429d3b6004f06c59530c084a9aecf2bb">00089</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_scale_div.html#429d3b6004f06c59530c084a9aecf2bb">QwtScaleDiv::invalidate</a>()<a name="l00090"></a>00090 {<a name="l00091"></a>00091 d_isValid = <span class="keyword">false</span>;<a name="l00092"></a>00092 <a name="l00093"></a>00093 <span class="comment">// detach arrays</span><a name="l00094"></a>00094 <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i = 0; i < NTickTypes; i++ )<a name="l00095"></a>00095 d_ticks[i].clear();<a name="l00096"></a>00096 <a name="l00097"></a>00097 d_lBound = d_hBound = 0;<a name="l00098"></a>00098 }<a name="l00099"></a>00099 <a name="l00101"></a><a class="code" href="class_qwt_scale_div.html#22f6955b5d2c73a91a8f01ad49cd4c39">00101</a> <span class="keywordtype">bool</span> <a class="code" href="class_qwt_scale_div.html#22f6955b5d2c73a91a8f01ad49cd4c39">QwtScaleDiv::isValid</a>()<span class="keyword"> const</span><a name="l00102"></a>00102 <span class="keyword"></span>{<a name="l00103"></a>00103 <span class="keywordflow">return</span> d_isValid;<a name="l00104"></a>00104 }<a name="l00105"></a>00105 <a name="l00106"></a><a class="code" href="class_qwt_scale_div.html#9fe271ba1bee08d01033ce964c3216c1">00106</a> <span class="keywordtype">bool</span> <a class="code" href="class_qwt_scale_div.html#9fe271ba1bee08d01033ce964c3216c1">QwtScaleDiv::contains</a>(<span class="keywordtype">double</span> v)<span class="keyword"> const</span><a name="l00107"></a>00107 <span class="keyword"></span>{<a name="l00108"></a>00108 <span class="keywordflow">if</span> ( !d_isValid )<a name="l00109"></a>00109 <span class="keywordflow">return</span> <span class="keyword">false</span>;<a name="l00110"></a>00110 <a name="l00111"></a>00111 <span class="keyword">const</span> <span class="keywordtype">double</span> min = qwtMin(d_lBound, d_hBound);<a name="l00112"></a>00112 <span class="keyword">const</span> <span class="keywordtype">double</span> max = qwtMax(d_lBound, d_hBound);<a name="l00113"></a>00113 <a name="l00114"></a>00114 <span class="keywordflow">return</span> v >= min && v <= max;<a name="l00115"></a>00115 }<a name="l00116"></a>00116 <a name="l00118"></a><a class="code" href="class_qwt_scale_div.html#1ea38d52d5836fd4376f480180973786">00118</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_scale_div.html#1ea38d52d5836fd4376f480180973786">QwtScaleDiv::invert</a>()<a name="l00119"></a>00119 {<a name="l00120"></a>00120 qSwap(d_lBound, d_hBound);<a name="l00121"></a>00121 <a name="l00122"></a>00122 <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i = 0; i < NTickTypes; i++ )<a name="l00123"></a>00123 {<a name="l00124"></a>00124 QwtValueList& <a class="code" href="class_qwt_scale_div.html#c6310b93e4b505e62d2141ba6a8e90ee">ticks</a> = d_ticks[i];<a name="l00125"></a>00125 <a name="l00126"></a>00126 <span class="keyword">const</span> <span class="keywordtype">int</span> size = <a class="code" href="class_qwt_scale_div.html#c6310b93e4b505e62d2141ba6a8e90ee">ticks</a>.count();<a name="l00127"></a>00127 <span class="keyword">const</span> <span class="keywordtype">int</span> size2 = size / 2;<a name="l00128"></a>00128 <a name="l00129"></a>00129 <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i=0; i < size2; i++)<a name="l00130"></a>00130 qSwap(<a class="code" href="class_qwt_scale_div.html#c6310b93e4b505e62d2141ba6a8e90ee">ticks</a>[i], <a class="code" href="class_qwt_scale_div.html#c6310b93e4b505e62d2141ba6a8e90ee">ticks</a>[size - 1 - i]);<a name="l00131"></a>00131 }<a name="l00132"></a>00132 }<a name="l00133"></a>00133 <a name="l00139"></a><a class="code" href="class_qwt_scale_div.html#c6310b93e4b505e62d2141ba6a8e90ee">00139</a> <span class="keyword">const</span> QwtValueList &<a class="code" href="class_qwt_scale_div.html#c6310b93e4b505e62d2141ba6a8e90ee">QwtScaleDiv::ticks</a>(<span class="keywordtype">int</span> type)<span class="keyword"> const</span><a name="l00140"></a>00140 <span class="keyword"></span>{<a name="l00141"></a>00141 <span class="keywordflow">if</span> ( type >= 0 || type < NTickTypes )<a name="l00142"></a>00142 <span class="keywordflow">return</span> d_ticks[type];<a name="l00143"></a>00143 <a name="l00144"></a>00144 <span class="keyword">static</span> QwtValueList noTicks;<a name="l00145"></a>00145 <span class="keywordflow">return</span> noTicks;<a name="l00146"></a>00146 }</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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