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<h1>qwt_double_interval.h</h1> </div>
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<div class="contents">
<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_INTERVAL_H</span>
<a name="l00011"></a>00011 <span class="preprocessor"></span><span class="preprocessor">#define QWT_DOUBLE_INTERVAL_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="l00021"></a><a class="code" href="class_qwt_double_interval.html">00021</a> <span class="keyword">class </span>QWT_EXPORT <a class="code" href="class_qwt_double_interval.html" title="A class representing an interval.">QwtDoubleInterval</a>
<a name="l00022"></a>00022 {
<a name="l00023"></a>00023 <span class="keyword">public</span>:
<a name="l00038"></a><a class="code" href="class_qwt_double_interval.html#aa6cc02f0670b6689be1ea25766072edd">00038</a> <span class="keyword">enum</span> <a class="code" href="class_qwt_double_interval.html#aa6cc02f0670b6689be1ea25766072edd">BorderMode</a>
<a name="l00039"></a>00039 {
<a name="l00040"></a>00040 IncludeBorders = 0,
<a name="l00041"></a>00041
<a name="l00042"></a>00042 ExcludeMinimum = 1,
<a name="l00043"></a>00043 ExcludeMaximum = 2,
<a name="l00044"></a>00044
<a name="l00045"></a>00045 ExcludeBorders = ExcludeMinimum | ExcludeMaximum
<a name="l00046"></a>00046 };
<a name="l00047"></a>00047
<a name="l00048"></a>00048 <a class="code" href="class_qwt_double_interval.html" title="A class representing an interval.">QwtDoubleInterval</a>();
<a name="l00049"></a>00049 <a class="code" href="class_qwt_double_interval.html" title="A class representing an interval.">QwtDoubleInterval</a>(<span class="keywordtype">double</span> minValue, <span class="keywordtype">double</span> maxValue,
<a name="l00050"></a>00050 <span class="keywordtype">int</span> borderFlags = IncludeBorders);
<a name="l00051"></a>00051
<a name="l00052"></a>00052 <span class="keywordtype">void</span> setInterval(<span class="keywordtype">double</span> minValue, <span class="keywordtype">double</span> maxValue,
<a name="l00053"></a>00053 <span class="keywordtype">int</span> borderFlags = IncludeBorders);
<a name="l00054"></a>00054
<a name="l00055"></a>00055 <a class="code" href="class_qwt_double_interval.html" title="A class representing an interval.">QwtDoubleInterval</a> normalized() <span class="keyword">const</span>;
<a name="l00056"></a>00056 <a class="code" href="class_qwt_double_interval.html" title="A class representing an interval.">QwtDoubleInterval</a> inverted() <span class="keyword">const</span>;
<a name="l00057"></a>00057 <a class="code" href="class_qwt_double_interval.html" title="A class representing an interval.">QwtDoubleInterval</a> limited(<span class="keywordtype">double</span> minValue, <span class="keywordtype">double</span> maxValue) <span class="keyword">const</span>;
<a name="l00058"></a>00058
<a name="l00059"></a>00059 <span class="keywordtype">int</span> operator==(<span class="keyword">const</span> <a class="code" href="class_qwt_double_interval.html" title="A class representing an interval.">QwtDoubleInterval</a> &) <span class="keyword">const</span>;
<a name="l00060"></a>00060 <span class="keywordtype">int</span> operator!=(<span class="keyword">const</span> <a class="code" href="class_qwt_double_interval.html" title="A class representing an interval.">QwtDoubleInterval</a> &) <span class="keyword">const</span>;
<a name="l00061"></a>00061
<a name="l00062"></a>00062 <span class="keywordtype">void</span> setBorderFlags(<span class="keywordtype">int</span>);
<a name="l00063"></a>00063 <span class="keywordtype">int</span> borderFlags() <span class="keyword">const</span>;
<a name="l00064"></a>00064
<a name="l00065"></a>00065 <span class="keywordtype">double</span> minValue() <span class="keyword">const</span>;
<a name="l00066"></a>00066 <span class="keywordtype">double</span> maxValue() <span class="keyword">const</span>;
<a name="l00067"></a>00067
<a name="l00068"></a>00068 <span class="keywordtype">double</span> width() <span class="keyword">const</span>;
<a name="l00069"></a>00069
<a name="l00070"></a>00070 <span class="keywordtype">void</span> setMinValue(<span class="keywordtype">double</span>);
<a name="l00071"></a>00071 <span class="keywordtype">void</span> setMaxValue(<span class="keywordtype">double</span>);
<a name="l00072"></a>00072
<a name="l00073"></a>00073 <span class="keywordtype">bool</span> contains(<span class="keywordtype">double</span> value) <span class="keyword">const</span>;
<a name="l00074"></a>00074
<a name="l00075"></a>00075 <span class="keywordtype">bool</span> intersects(<span class="keyword">const</span> <a class="code" href="class_qwt_double_interval.html" title="A class representing an interval.">QwtDoubleInterval</a> &) <span class="keyword">const</span>;
<a name="l00076"></a>00076 <a class="code" href="class_qwt_double_interval.html" title="A class representing an interval.">QwtDoubleInterval</a> intersect(<span class="keyword">const</span> <a class="code" href="class_qwt_double_interval.html" title="A class representing an interval.">QwtDoubleInterval</a> &) <span class="keyword">const</span>;
<a name="l00077"></a>00077 <a class="code" href="class_qwt_double_interval.html" title="A class representing an interval.">QwtDoubleInterval</a> unite(<span class="keyword">const</span> <a class="code" href="class_qwt_double_interval.html" title="A class representing an interval.">QwtDoubleInterval</a> &) <span class="keyword">const</span>;
<a name="l00078"></a>00078
<a name="l00079"></a>00079 <a class="code" href="class_qwt_double_interval.html" title="A class representing an interval.">QwtDoubleInterval</a> operator|(<span class="keyword">const</span> <a class="code" href="class_qwt_double_interval.html" title="A class representing an interval.">QwtDoubleInterval</a> &) <span class="keyword">const</span>;
<a name="l00080"></a>00080 <a class="code" href="class_qwt_double_interval.html" title="A class representing an interval.">QwtDoubleInterval</a> operator&(<span class="keyword">const</span> <a class="code" href="class_qwt_double_interval.html" title="A class representing an interval.">QwtDoubleInterval</a> &) <span class="keyword">const</span>;
<a name="l00081"></a>00081
<a name="l00082"></a>00082 <a class="code" href="class_qwt_double_interval.html" title="A class representing an interval.">QwtDoubleInterval</a> &operator|=(<span class="keyword">const</span> <a class="code" href="class_qwt_double_interval.html" title="A class representing an interval.">QwtDoubleInterval</a> &);
<a name="l00083"></a>00083 <a class="code" href="class_qwt_double_interval.html" title="A class representing an interval.">QwtDoubleInterval</a> &operator&=(<span class="keyword">const</span> <a class="code" href="class_qwt_double_interval.html" title="A class representing an interval.">QwtDoubleInterval</a> &);
<a name="l00084"></a>00084
<a name="l00085"></a>00085 <a class="code" href="class_qwt_double_interval.html" title="A class representing an interval.">QwtDoubleInterval</a> extend(<span class="keywordtype">double</span> value) <span class="keyword">const</span>;
<a name="l00086"></a>00086 <a class="code" href="class_qwt_double_interval.html" title="A class representing an interval.">QwtDoubleInterval</a> operator|(<span class="keywordtype">double</span>) <span class="keyword">const</span>;
<a name="l00087"></a>00087 <a class="code" href="class_qwt_double_interval.html" title="A class representing an interval.">QwtDoubleInterval</a> &operator|=(<span class="keywordtype">double</span>);
<a name="l00088"></a>00088
<a name="l00089"></a>00089 <span class="keywordtype">bool</span> isValid() <span class="keyword">const</span>;
<a name="l00090"></a>00090 <span class="keywordtype">bool</span> isNull() <span class="keyword">const</span>;
<a name="l00091"></a>00091 <span class="keywordtype">void</span> invalidate();
<a name="l00092"></a>00092
<a name="l00093"></a>00093 <a class="code" href="class_qwt_double_interval.html" title="A class representing an interval.">QwtDoubleInterval</a> symmetrize(<span class="keywordtype">double</span> value) <span class="keyword">const</span>;
<a name="l00094"></a>00094
<a name="l00095"></a>00095 <span class="keyword">private</span>:
<a name="l00096"></a>00096 <span class="keywordtype">double</span> d_minValue;
<a name="l00097"></a>00097 <span class="keywordtype">double</span> d_maxValue;
<a name="l00098"></a>00098 <span class="keywordtype">int</span> d_borderFlags;
<a name="l00099"></a>00099 };
<a name="l00100"></a>00100
<a name="l00107"></a><a class="code" href="class_qwt_double_interval.html#ad07ae136fc65e6ad566b482274705cf2">00107</a> <span class="keyword">inline</span> <a class="code" href="class_qwt_double_interval.html#ad07ae136fc65e6ad566b482274705cf2" title="Default Constructor.">QwtDoubleInterval::QwtDoubleInterval</a>():
<a name="l00108"></a>00108 d_minValue(0.0),
<a name="l00109"></a>00109 d_maxValue(-1.0),
<a name="l00110"></a>00110 d_borderFlags(IncludeBorders)
<a name="l00111"></a>00111 {
<a name="l00112"></a>00112 }
<a name="l00113"></a>00113
<a name="l00123"></a><a class="code" href="class_qwt_double_interval.html#adfc59b4f57a2fb02860ed2b82df74a1e">00123</a> <span class="keyword">inline</span> <a class="code" href="class_qwt_double_interval.html#ad07ae136fc65e6ad566b482274705cf2" title="Default Constructor.">QwtDoubleInterval::QwtDoubleInterval</a>(
<a name="l00124"></a>00124 <span class="keywordtype">double</span> minValue, <span class="keywordtype">double</span> maxValue, <span class="keywordtype">int</span> borderFlags):
<a name="l00125"></a>00125 d_minValue(minValue),
<a name="l00126"></a>00126 d_maxValue(maxValue),
<a name="l00127"></a>00127 d_borderFlags(borderFlags)
<a name="l00128"></a>00128 {
<a name="l00129"></a>00129 }
<a name="l00130"></a>00130
<a name="l00138"></a><a class="code" href="class_qwt_double_interval.html#a06b2e64a115b6cc11557777532ebf405">00138</a> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="class_qwt_double_interval.html#a06b2e64a115b6cc11557777532ebf405">QwtDoubleInterval::setInterval</a>(
<a name="l00139"></a>00139 <span class="keywordtype">double</span> minValue, <span class="keywordtype">double</span> maxValue, <span class="keywordtype">int</span> borderFlags)
<a name="l00140"></a>00140 {
<a name="l00141"></a>00141 d_minValue = <a class="code" href="class_qwt_double_interval.html#a2d7d56e81ee75911f176c94f6aaf4b8b">minValue</a>;
<a name="l00142"></a>00142 d_maxValue = <a class="code" href="class_qwt_double_interval.html#a8fd8629d76f24d5494e59458cd79c4e2">maxValue</a>;
<a name="l00143"></a>00143 d_borderFlags = <a class="code" href="class_qwt_double_interval.html#ab99d8ac114a867428562364ca1be50e3">borderFlags</a>;
<a name="l00144"></a>00144 }
<a name="l00145"></a>00145
<a name="l00152"></a><a class="code" href="class_qwt_double_interval.html#a7716469bedceaf1001838c28a969c796">00152</a> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="class_qwt_double_interval.html#a7716469bedceaf1001838c28a969c796">QwtDoubleInterval::setBorderFlags</a>(<span class="keywordtype">int</span> borderFlags)
<a name="l00153"></a>00153 {
<a name="l00154"></a>00154 d_borderFlags = <a class="code" href="class_qwt_double_interval.html#ab99d8ac114a867428562364ca1be50e3">borderFlags</a>;
<a name="l00155"></a>00155 }
<a name="l00156"></a>00156
<a name="l00161"></a><a class="code" href="class_qwt_double_interval.html#ab99d8ac114a867428562364ca1be50e3">00161</a> <span class="keyword">inline</span> <span class="keywordtype">int</span> <a class="code" href="class_qwt_double_interval.html#ab99d8ac114a867428562364ca1be50e3">QwtDoubleInterval::borderFlags</a>()<span class="keyword"> const</span>
<a name="l00162"></a>00162 <span class="keyword"></span>{
<a name="l00163"></a>00163 <span class="keywordflow">return</span> d_borderFlags;
<a name="l00164"></a>00164 }
<a name="l00165"></a>00165
<a name="l00171"></a><a class="code" href="class_qwt_double_interval.html#a610a87e9921738cf3a4ef1f4cbd96f02">00171</a> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="class_qwt_double_interval.html#a610a87e9921738cf3a4ef1f4cbd96f02">QwtDoubleInterval::setMinValue</a>(<span class="keywordtype">double</span> minValue)
<a name="l00172"></a>00172 {
<a name="l00173"></a>00173 d_minValue = <a class="code" href="class_qwt_double_interval.html#a2d7d56e81ee75911f176c94f6aaf4b8b">minValue</a>;
<a name="l00174"></a>00174 }
<a name="l00175"></a>00175
<a name="l00181"></a><a class="code" href="class_qwt_double_interval.html#a34863ae20465138c887f6de55a5f1bed">00181</a> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="class_qwt_double_interval.html#a34863ae20465138c887f6de55a5f1bed">QwtDoubleInterval::setMaxValue</a>(<span class="keywordtype">double</span> maxValue)
<a name="l00182"></a>00182 {
<a name="l00183"></a>00183 d_maxValue = <a class="code" href="class_qwt_double_interval.html#a8fd8629d76f24d5494e59458cd79c4e2">maxValue</a>;
<a name="l00184"></a>00184 }
<a name="l00185"></a>00185
<a name="l00187"></a><a class="code" href="class_qwt_double_interval.html#a2d7d56e81ee75911f176c94f6aaf4b8b">00187</a> <span class="keyword">inline</span> <span class="keywordtype">double</span> <a class="code" href="class_qwt_double_interval.html#a2d7d56e81ee75911f176c94f6aaf4b8b">QwtDoubleInterval::minValue</a>()<span class="keyword"> const </span>
<a name="l00188"></a>00188 <span class="keyword"></span>{
<a name="l00189"></a>00189 <span class="keywordflow">return</span> d_minValue;
<a name="l00190"></a>00190 }
<a name="l00191"></a>00191
<a name="l00193"></a><a class="code" href="class_qwt_double_interval.html#a8fd8629d76f24d5494e59458cd79c4e2">00193</a> <span class="keyword">inline</span> <span class="keywordtype">double</span> <a class="code" href="class_qwt_double_interval.html#a8fd8629d76f24d5494e59458cd79c4e2">QwtDoubleInterval::maxValue</a>()<span class="keyword"> const </span>
<a name="l00194"></a>00194 <span class="keyword"></span>{
<a name="l00195"></a>00195 <span class="keywordflow">return</span> d_maxValue;
<a name="l00196"></a>00196 }
<a name="l00197"></a>00197
<a name="l00205"></a><a class="code" href="class_qwt_double_interval.html#ab5d610e0d1fc9a5a3bc020dd39326327">00205</a> <span class="keyword">inline</span> <span class="keywordtype">double</span> <a class="code" href="class_qwt_double_interval.html#ab5d610e0d1fc9a5a3bc020dd39326327">QwtDoubleInterval::width</a>()<span class="keyword"> const </span>
<a name="l00206"></a>00206 <span class="keyword"></span>{
<a name="l00207"></a>00207 <span class="keywordflow">return</span> <a class="code" href="class_qwt_double_interval.html#a311402213e243b809008faaec00507d5">isValid</a>() ? (d_maxValue - d_minValue) : 0.0;
<a name="l00208"></a>00208 }
<a name="l00209"></a>00209
<a name="l00214"></a><a class="code" href="class_qwt_double_interval.html#ac8b6c7d16a435b35201a493cf4b88990">00214</a> <span class="keyword">inline</span> <a class="code" href="class_qwt_double_interval.html" title="A class representing an interval.">QwtDoubleInterval</a> <a class="code" href="class_qwt_double_interval.html#ac8b6c7d16a435b35201a493cf4b88990">QwtDoubleInterval::operator&</a>(
<a name="l00215"></a>00215 <span class="keyword">const</span> <a class="code" href="class_qwt_double_interval.html" title="A class representing an interval.">QwtDoubleInterval</a> &interval )<span class="keyword"> const</span>
<a name="l00216"></a>00216 <span class="keyword"></span>{
<a name="l00217"></a>00217 <span class="keywordflow">return</span> <a class="code" href="class_qwt_double_interval.html#a52488d71ecc5dee5ea0a4106bd7901f4" title="Intersect 2 intervals.">intersect</a>(interval);
<a name="l00218"></a>00218 }
<a name="l00219"></a>00219
<a name="l00224"></a><a class="code" href="class_qwt_double_interval.html#a6d7180c27b35aa577edbab066280be6e">00224</a> <span class="keyword">inline</span> <a class="code" href="class_qwt_double_interval.html" title="A class representing an interval.">QwtDoubleInterval</a> <a class="code" href="class_qwt_double_interval.html#a6d7180c27b35aa577edbab066280be6e">QwtDoubleInterval::operator|</a>(
<a name="l00225"></a>00225 <span class="keyword">const</span> <a class="code" href="class_qwt_double_interval.html" title="A class representing an interval.">QwtDoubleInterval</a> &interval)<span class="keyword"> const</span>
<a name="l00226"></a>00226 <span class="keyword"></span>{
<a name="l00227"></a>00227 <span class="keywordflow">return</span> <a class="code" href="class_qwt_double_interval.html#af6f3a0baf79d261237fb4aca2f099716" title="Unite 2 intervals.">unite</a>(interval);
<a name="l00228"></a>00228 }
<a name="l00229"></a>00229
<a name="l00231"></a><a class="code" href="class_qwt_double_interval.html#ab373610a84a4cde4fa42afb0c4b4d603">00231</a> <span class="keyword">inline</span> <span class="keywordtype">int</span> <a class="code" href="class_qwt_double_interval.html#ab373610a84a4cde4fa42afb0c4b4d603" title="Compare two intervals.">QwtDoubleInterval::operator==</a>(<span class="keyword">const</span> <a class="code" href="class_qwt_double_interval.html" title="A class representing an interval.">QwtDoubleInterval</a> &other)<span class="keyword"> const</span>
<a name="l00232"></a>00232 <span class="keyword"></span>{
<a name="l00233"></a>00233 <span class="keywordflow">return</span> (d_minValue == other.d_minValue) &&
<a name="l00234"></a>00234 (d_maxValue == other.d_maxValue) &&
<a name="l00235"></a>00235 (d_borderFlags == other.d_borderFlags);
<a name="l00236"></a>00236 }
<a name="l00237"></a>00237
<a name="l00239"></a><a class="code" href="class_qwt_double_interval.html#a682025b4426f142207a112b3e7de7a71">00239</a> <span class="keyword">inline</span> <span class="keywordtype">int</span> <a class="code" href="class_qwt_double_interval.html#a682025b4426f142207a112b3e7de7a71" title="Compare two intervals.">QwtDoubleInterval::operator!=</a>(<span class="keyword">const</span> <a class="code" href="class_qwt_double_interval.html" title="A class representing an interval.">QwtDoubleInterval</a> &other)<span class="keyword"> const</span>
<a name="l00240"></a>00240 <span class="keyword"></span>{
<a name="l00241"></a>00241 <span class="keywordflow">return</span> (!(*<span class="keyword">this</span> == other));
<a name="l00242"></a>00242 }
<a name="l00243"></a>00243
<a name="l00248"></a><a class="code" href="class_qwt_double_interval.html#a00056b9d5a76b8f0e58003b7aa3307af">00248</a> <span class="keyword">inline</span> <a class="code" href="class_qwt_double_interval.html" title="A class representing an interval.">QwtDoubleInterval</a> <a class="code" href="class_qwt_double_interval.html#a6d7180c27b35aa577edbab066280be6e">QwtDoubleInterval::operator|</a>(<span class="keywordtype">double</span> value)<span class="keyword"> const</span>
<a name="l00249"></a>00249 <span class="keyword"></span>{
<a name="l00250"></a>00250 <span class="keywordflow">return</span> <a class="code" href="class_qwt_double_interval.html#a718e883366caa45e24b2ba4b9d529f11">extend</a>(value);
<a name="l00251"></a>00251 }
<a name="l00252"></a>00252
<a name="l00254"></a><a class="code" href="class_qwt_double_interval.html#afed126a2f37a7a9487574de8c55ab722">00254</a> <span class="keyword">inline</span> <span class="keywordtype">bool</span> <a class="code" href="class_qwt_double_interval.html#afed126a2f37a7a9487574de8c55ab722">QwtDoubleInterval::isNull</a>()<span class="keyword"> const</span>
<a name="l00255"></a>00255 <span class="keyword"></span>{
<a name="l00256"></a>00256 <span class="keywordflow">return</span> <a class="code" href="class_qwt_double_interval.html#a311402213e243b809008faaec00507d5">isValid</a>() && d_minValue >= d_maxValue;
<a name="l00257"></a>00257 }
<a name="l00258"></a>00258
<a name="l00264"></a><a class="code" href="class_qwt_double_interval.html#a311402213e243b809008faaec00507d5">00264</a> <span class="keyword">inline</span> <span class="keywordtype">bool</span> <a class="code" href="class_qwt_double_interval.html#a311402213e243b809008faaec00507d5">QwtDoubleInterval::isValid</a>()<span class="keyword"> const</span>
<a name="l00265"></a>00265 <span class="keyword"></span>{
<a name="l00266"></a>00266 <span class="keywordflow">if</span> ( (d_borderFlags & ExcludeBorders) == 0 )
<a name="l00267"></a>00267 <span class="keywordflow">return</span> d_minValue <= d_maxValue;
<a name="l00268"></a>00268 <span class="keywordflow">else</span>
<a name="l00269"></a>00269 <span class="keywordflow">return</span> d_minValue < d_maxValue;
<a name="l00270"></a>00270 }
<a name="l00271"></a>00271
<a name="l00278"></a><a class="code" href="class_qwt_double_interval.html#a4e182e414b506ebbad083a2005c0614c">00278</a> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="class_qwt_double_interval.html#a4e182e414b506ebbad083a2005c0614c">QwtDoubleInterval::invalidate</a>()
<a name="l00279"></a>00279 {
<a name="l00280"></a>00280 d_minValue = 0.0;
<a name="l00281"></a>00281 d_maxValue = -1.0;
<a name="l00282"></a>00282 }
<a name="l00283"></a>00283
<a name="l00284"></a>00284 <span class="preprocessor">#endif</span>
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