📄 qwt__abstract__scale_8cpp-source.html
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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_abstract_scale.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_abstract_scale.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_engine.h"</span><a name="l00011"></a>00011 <span class="preprocessor">#include "qwt_scale_draw.h"</span><a name="l00012"></a>00012 <span class="preprocessor">#include "qwt_scale_div.h"</span><a name="l00013"></a>00013 <span class="preprocessor">#include "qwt_scale_map.h"</span><a name="l00014"></a>00014 <span class="preprocessor">#include "qwt_double_interval.h"</span><a name="l00015"></a>00015 <span class="preprocessor">#include "qwt_abstract_scale.h"</span><a name="l00016"></a>00016 <a name="l00017"></a>00017 <span class="keyword">class </span>QwtAbstractScale::PrivateData<a name="l00018"></a>00018 {<a name="l00019"></a>00019 <span class="keyword">public</span>:<a name="l00020"></a>00020 PrivateData():<a name="l00021"></a>00021 maxMajor(5),<a name="l00022"></a>00022 maxMinor(3),<a name="l00023"></a>00023 stepSize(0.0),<a name="l00024"></a>00024 <a class="code" href="class_qwt_abstract_scale.html#01f1f43502a8ba14988a0bd3142d94b1">autoScale</a>(true)<a name="l00025"></a>00025 {<a name="l00026"></a>00026 <a class="code" href="class_qwt_abstract_scale.html#5b8084cc735933ce9338fd2df1126f0e">scaleEngine</a> = <span class="keyword">new</span> <a class="code" href="class_qwt_linear_scale_engine.html">QwtLinearScaleEngine</a>;<a name="l00027"></a>00027 scaleDraw = <span class="keyword">new</span> <a class="code" href="class_qwt_scale_draw.html">QwtScaleDraw</a>();<a name="l00028"></a>00028 }<a name="l00029"></a>00029 <a name="l00030"></a>00030 ~PrivateData()<a name="l00031"></a>00031 {<a name="l00032"></a>00032 <span class="keyword">delete</span> <a class="code" href="class_qwt_abstract_scale.html#5b8084cc735933ce9338fd2df1126f0e">scaleEngine</a>;<a name="l00033"></a>00033 <span class="keyword">delete</span> scaleDraw;<a name="l00034"></a>00034 }<a name="l00035"></a>00035 <a name="l00036"></a>00036 <a class="code" href="class_qwt_scale_engine.html">QwtScaleEngine</a> *<a class="code" href="class_qwt_abstract_scale.html#5b8084cc735933ce9338fd2df1126f0e">scaleEngine</a>;<a name="l00037"></a>00037 <a class="code" href="class_qwt_abstract_scale_draw.html">QwtAbstractScaleDraw</a> *scaleDraw;<a name="l00038"></a>00038 <a name="l00039"></a>00039 <span class="keywordtype">int</span> maxMajor;<a name="l00040"></a>00040 <span class="keywordtype">int</span> maxMinor;<a name="l00041"></a>00041 <span class="keywordtype">double</span> stepSize;<a name="l00042"></a>00042 <a name="l00043"></a>00043 <span class="keywordtype">bool</span> <a class="code" href="class_qwt_abstract_scale.html#01f1f43502a8ba14988a0bd3142d94b1">autoScale</a>;<a name="l00044"></a>00044 };<a name="l00045"></a>00045 <a name="l00053"></a><a class="code" href="class_qwt_abstract_scale.html#a12aff84cebf3ace4f1b5e61737e0051">00053</a> <a class="code" href="class_qwt_abstract_scale.html#a12aff84cebf3ace4f1b5e61737e0051">QwtAbstractScale::QwtAbstractScale</a>()<a name="l00054"></a>00054 {<a name="l00055"></a>00055 d_data = <span class="keyword">new</span> PrivateData;<a name="l00056"></a>00056 <a class="code" href="class_qwt_abstract_scale.html#bd7c6b312b41882a3b509aadc9ada46e">rescale</a>(0.0, 100.0);<a name="l00057"></a>00057 }<a name="l00058"></a>00058 <a name="l00060"></a><a class="code" href="class_qwt_abstract_scale.html#73890593efff11427ea7a42a3ebadefd">00060</a> <a class="code" href="class_qwt_abstract_scale.html#73890593efff11427ea7a42a3ebadefd">QwtAbstractScale::~QwtAbstractScale</a>()<a name="l00061"></a>00061 {<a name="l00062"></a>00062 <span class="keyword">delete</span> d_data;<a name="l00063"></a>00063 }<a name="l00064"></a>00064 <a name="l00075"></a><a class="code" href="class_qwt_abstract_scale.html#91af529248b556ef130add4bcfc60bb2">00075</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_abstract_scale.html#91af529248b556ef130add4bcfc60bb2">QwtAbstractScale::setScale</a>(<span class="keywordtype">double</span> vmin, <span class="keywordtype">double</span> vmax, <span class="keywordtype">double</span> stepSize)<a name="l00076"></a>00076 {<a name="l00077"></a>00077 d_data->autoScale = <span class="keyword">false</span>;<a name="l00078"></a>00078 d_data->stepSize = stepSize;<a name="l00079"></a>00079 <a name="l00080"></a>00080 <a class="code" href="class_qwt_abstract_scale.html#bd7c6b312b41882a3b509aadc9ada46e">rescale</a>(vmin, vmax, stepSize);<a name="l00081"></a>00081 }<a name="l00082"></a>00082 <a name="l00092"></a><a class="code" href="class_qwt_abstract_scale.html#71a5d086aa003f62edb225b3b64024d7">00092</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_abstract_scale.html#91af529248b556ef130add4bcfc60bb2">QwtAbstractScale::setScale</a>(<span class="keyword">const</span> <a class="code" href="class_qwt_double_interval.html">QwtDoubleInterval</a> &interval, <a name="l00093"></a>00093 <span class="keywordtype">double</span> stepSize)<a name="l00094"></a>00094 {<a name="l00095"></a>00095 <a class="code" href="class_qwt_abstract_scale.html#91af529248b556ef130add4bcfc60bb2">setScale</a>(interval.<a class="code" href="class_qwt_double_interval.html#2d7d56e81ee75911f176c94f6aaf4b8b">minValue</a>(), interval.<a class="code" href="class_qwt_double_interval.html#8fd8629d76f24d5494e59458cd79c4e2">maxValue</a>(), stepSize);<a name="l00096"></a>00096 }<a name="l00097"></a>00097 <a name="l00098"></a>00098 <a name="l00107"></a><a class="code" href="class_qwt_abstract_scale.html#bfb499364716be91dbbc03879fc171ab">00107</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_abstract_scale.html#91af529248b556ef130add4bcfc60bb2">QwtAbstractScale::setScale</a>(<span class="keyword">const</span> <a class="code" href="class_qwt_scale_div.html">QwtScaleDiv</a> &scaleDiv)<a name="l00108"></a>00108 {<a name="l00109"></a>00109 d_data->autoScale = <span class="keyword">false</span>;<a name="l00110"></a>00110 <a name="l00111"></a>00111 <span class="keywordflow">if</span> (scaleDiv != d_data->scaleDraw->scaleDiv())<a name="l00112"></a>00112 {<a name="l00113"></a>00113 d_data->scaleDraw->setScaleDiv(scaleDiv);<a name="l00114"></a>00114 <a class="code" href="class_qwt_abstract_scale.html#0dbb7bdc557c0a7b163643e41970ed6a">scaleChange</a>();<a name="l00115"></a>00115 }<a name="l00116"></a>00116 }<a name="l00117"></a>00117 <a name="l00127"></a><a class="code" href="class_qwt_abstract_scale.html#bd7c6b312b41882a3b509aadc9ada46e">00127</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_abstract_scale.html#bd7c6b312b41882a3b509aadc9ada46e">QwtAbstractScale::rescale</a>(<span class="keywordtype">double</span> vmin, <span class="keywordtype">double</span> vmax, <span class="keywordtype">double</span> stepSize) <a name="l00128"></a>00128 {<a name="l00129"></a>00129 <span class="keyword">const</span> <a class="code" href="class_qwt_scale_div.html">QwtScaleDiv</a> scaleDiv = d_data->scaleEngine->divideScale(<a name="l00130"></a>00130 vmin, vmax, d_data->maxMajor, d_data->maxMinor, stepSize);<a name="l00131"></a>00131 <a name="l00132"></a>00132 <span class="keywordflow">if</span> ( scaleDiv != d_data->scaleDraw->scaleDiv() )<a name="l00133"></a>00133 {<a name="l00134"></a>00134 d_data->scaleDraw->setTransformation(<a name="l00135"></a>00135 d_data->scaleEngine->transformation());⌨️ 快捷键说明
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