qwt__scale__draw_8cpp-source.html
来自「QWT5.01用于Qt开发的二维图形库程序」· HTML 代码 · 共 689 行 · 第 1/5 页
HTML
689 行
<!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_draw.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_draw.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="comment">// vim: expandtab</span><a name="l00011"></a>00011 <a name="l00012"></a>00012 <span class="preprocessor">#include <qpen.h></span><a name="l00013"></a>00013 <span class="preprocessor">#include <qpainter.h></span><a name="l00014"></a>00014 <span class="preprocessor">#include "qwt_math.h"</span><a name="l00015"></a>00015 <span class="preprocessor">#include "qwt_painter.h"</span><a name="l00016"></a>00016 <span class="preprocessor">#include "qwt_polygon.h"</span><a name="l00017"></a>00017 <span class="preprocessor">#include "qwt_scale_div.h"</span><a name="l00018"></a>00018 <span class="preprocessor">#include "qwt_scale_map.h"</span><a name="l00019"></a>00019 <span class="preprocessor">#include "qwt_scale_draw.h"</span><a name="l00020"></a>00020 <a name="l00021"></a>00021 <span class="preprocessor">#if QT_VERSION < 0x040000</span><a name="l00022"></a>00022 <span class="preprocessor"></span><span class="preprocessor">#include <qwmatrix.h></span><a name="l00023"></a>00023 <span class="preprocessor">#define QwtMatrix QWMatrix</span><a name="l00024"></a>00024 <span class="preprocessor"></span><span class="preprocessor">#else</span><a name="l00025"></a>00025 <span class="preprocessor"></span><span class="preprocessor">#include <qmatrix.h></span><a name="l00026"></a>00026 <span class="preprocessor">#define QwtMatrix QMatrix</span><a name="l00027"></a>00027 <span class="preprocessor"></span><span class="preprocessor">#endif</span><a name="l00028"></a>00028 <span class="preprocessor"></span><a name="l00029"></a>00029 <span class="keyword">class </span>QwtScaleDraw::PrivateData<a name="l00030"></a>00030 {<a name="l00031"></a>00031 <span class="keyword">public</span>:<a name="l00032"></a>00032 PrivateData():<a name="l00033"></a>00033 len(0),<a name="l00034"></a>00034 <a class="code" href="class_qwt_scale_draw.html#d0425d29e919f60021322b178661b6e5">alignment</a>(<a class="code" href="class_qwt_scale_draw.html">QwtScaleDraw</a>::BottomScale),<a name="l00035"></a>00035 <a class="code" href="class_qwt_scale_draw.html#d024fd550ecc3816ee8886417794aae2">labelAlignment</a>(0),<a name="l00036"></a>00036 <a class="code" href="class_qwt_scale_draw.html#614f18b99f53e6a6282c39f95388face">labelRotation</a>(0.0)<a name="l00037"></a>00037 {<a name="l00038"></a>00038 }<a name="l00039"></a>00039 <a name="l00040"></a>00040 QPoint <a class="code" href="class_qwt_scale_draw.html#6fd3a7c12e05e6c22cc9580e17f954e3">pos</a>;<a name="l00041"></a>00041 <span class="keywordtype">int</span> len;<a name="l00042"></a>00042 <a name="l00043"></a>00043 <a class="code" href="class_qwt_scale_draw.html#cd7ceeeac592ef08530788580b461c66">Alignment</a> <a class="code" href="class_qwt_scale_draw.html#d0425d29e919f60021322b178661b6e5">alignment</a>;<a name="l00044"></a>00044 <a name="l00045"></a>00045 <span class="preprocessor">#if QT_VERSION < 0x040000</span><a name="l00046"></a>00046 <span class="preprocessor"></span> <span class="keywordtype">int</span> <a class="code" href="class_qwt_scale_draw.html#d024fd550ecc3816ee8886417794aae2">labelAlignment</a>;<a name="l00047"></a>00047 <span class="preprocessor">#else</span><a name="l00048"></a>00048 <span class="preprocessor"></span> Qt::Alignment <a class="code" href="class_qwt_scale_draw.html#d024fd550ecc3816ee8886417794aae2">labelAlignment</a>;<a name="l00049"></a>00049 <span class="preprocessor">#endif</span><a name="l00050"></a>00050 <span class="preprocessor"></span> <span class="keywordtype">double</span> <a class="code" href="class_qwt_scale_draw.html#614f18b99f53e6a6282c39f95388face">labelRotation</a>;<a name="l00051"></a>00051 };<a name="l00052"></a>00052 <a name="l00060"></a><a class="code" href="class_qwt_scale_draw.html#dbd01ba8d7f19fb3122f917b1c74145b">00060</a> <a class="code" href="class_qwt_scale_draw.html#dbd01ba8d7f19fb3122f917b1c74145b">QwtScaleDraw::QwtScaleDraw</a>()<a name="l00061"></a>00061 {<a name="l00062"></a>00062 d_data = <span class="keyword">new</span> QwtScaleDraw::PrivateData;<a name="l00063"></a>00063 <a class="code" href="class_qwt_scale_draw.html#2094e09579671d0a8e4b14a636eba6ef">setLength</a>(100);<a name="l00064"></a>00064 }<a name="l00065"></a>00065 <a name="l00067"></a><a class="code" href="class_qwt_scale_draw.html#eefb37bb1da64b582d310a046c0f9c83">00067</a> <a class="code" href="class_qwt_scale_draw.html#dbd01ba8d7f19fb3122f917b1c74145b">QwtScaleDraw::QwtScaleDraw</a>(<span class="keyword">const</span> <a class="code" href="class_qwt_scale_draw.html">QwtScaleDraw</a> &other):<a name="l00068"></a>00068 <a class="code" href="class_qwt_abstract_scale_draw.html">QwtAbstractScaleDraw</a>(other)<a name="l00069"></a>00069 {<a name="l00070"></a>00070 d_data = <span class="keyword">new</span> QwtScaleDraw::PrivateData(*other.<a class="code" href="class_qwt_scale_draw.html#0a1ed04b944776d7a79fa846b6741ae7">d_data</a>);<a name="l00071"></a>00071 }<a name="l00072"></a>00072 <a name="l00074"></a><a class="code" href="class_qwt_scale_draw.html#9c907c8fa27ec7312e78145e3050c599">00074</a> <a class="code" href="class_qwt_scale_draw.html#9c907c8fa27ec7312e78145e3050c599">QwtScaleDraw::~QwtScaleDraw</a>()<a name="l00075"></a>00075 {<a name="l00076"></a>00076 <span class="keyword">delete</span> d_data;<a name="l00077"></a>00077 }<a name="l00078"></a>00078 <a name="l00080"></a><a class="code" href="class_qwt_scale_draw.html#c0616d79ee21083f7402ba0586ff2635">00080</a> <a class="code" href="class_qwt_scale_draw.html">QwtScaleDraw</a> &<a class="code" href="class_qwt_scale_draw.html#c0616d79ee21083f7402ba0586ff2635">QwtScaleDraw::operator=</a>(<span class="keyword">const</span> <a class="code" href="class_qwt_scale_draw.html">QwtScaleDraw</a> &other)<a name="l00081"></a>00081 {<a name="l00082"></a>00082 *(<a class="code" href="class_qwt_abstract_scale_draw.html">QwtAbstractScaleDraw</a>*)<span class="keyword">this</span> = (<span class="keyword">const</span> <a class="code" href="class_qwt_abstract_scale_draw.html">QwtAbstractScaleDraw</a> &)other;<a name="l00083"></a>00083 *d_data = *other.<a class="code" href="class_qwt_scale_draw.html#0a1ed04b944776d7a79fa846b6741ae7">d_data</a>;<a name="l00084"></a>00084 <span class="keywordflow">return</span> *<span class="keyword">this</span>;<a name="l00085"></a>00085 }<a name="l00086"></a>00086 <a name="l00091"></a><a class="code" href="class_qwt_scale_draw.html#d0425d29e919f60021322b178661b6e5">00091</a> <a class="code" href="class_qwt_scale_draw.html#cd7ceeeac592ef08530788580b461c66">QwtScaleDraw::Alignment</a> <a class="code" href="class_qwt_scale_draw.html#d0425d29e919f60021322b178661b6e5">QwtScaleDraw::alignment</a>()<span class="keyword"> const </span><a name="l00092"></a>00092 <span class="keyword"></span>{<a name="l00093"></a>00093 <span class="keywordflow">return</span> d_data->alignment; <a name="l00094"></a>00094 }<a name="l00095"></a>00095 <a name="l00102"></a><a class="code" href="class_qwt_scale_draw.html#7a4de0055dc1358e55c3357366a54091">00102</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_scale_draw.html#7a4de0055dc1358e55c3357366a54091">QwtScaleDraw::setAlignment</a>(<a class="code" href="class_qwt_scale_draw.html#cd7ceeeac592ef08530788580b461c66">Alignment</a> align)<a name="l00103"></a>00103 {<a name="l00104"></a>00104 d_data->alignment = align;<a name="l00105"></a>00105 }<a name="l00106"></a>00106 <a name="l00115"></a><a class="code" href="class_qwt_scale_draw.html#06bf10d73aa03c16394a85fa70a7a3b1">00115</a> Qt::Orientation <a class="code" href="class_qwt_scale_draw.html#06bf10d73aa03c16394a85fa70a7a3b1">QwtScaleDraw::orientation</a>()<span class="keyword"> const</span><a name="l00116"></a>00116 <span class="keyword"></span>{<a name="l00117"></a>00117 <span class="keywordflow">switch</span>(d_data->alignment)<a name="l00118"></a>00118 {<a name="l00119"></a>00119 <span class="keywordflow">case</span> TopScale:<a name="l00120"></a>00120 <span class="keywordflow">case</span> BottomScale:<a name="l00121"></a>00121 <span class="keywordflow">return</span> Qt::Horizontal;<a name="l00122"></a>00122 <span class="keywordflow">case</span> LeftScale:<a name="l00123"></a>00123 <span class="keywordflow">case</span> RightScale:<a name="l00124"></a>00124 <span class="keywordflow">default</span>:<a name="l00125"></a>00125 <span class="keywordflow">return</span> Qt::Vertical;<a name="l00126"></a>00126 }<a name="l00127"></a>00127 }<a name="l00128"></a>00128 <a name="l00139"></a><a class="code" href="class_qwt_scale_draw.html#b6c5d65a109b63b2dd62984d38a4df0e">00139</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_scale_draw.html#b6c5d65a109b63b2dd62984d38a4df0e">QwtScaleDraw::getBorderDistHint</a>(<span class="keyword">const</span> QFont &font,<a name="l00140"></a>00140 <span class="keywordtype">int</span> &start, <span class="keywordtype">int</span> &end )<span class="keyword"> const</span><a name="l00141"></a>00141 <span class="keyword"></span>{<a name="l00142"></a>00142 start = 0;<a name="l00143"></a>00143 end = 0;<a name="l00144"></a>00144 <a name="l00145"></a>00145 <span class="keywordflow">if</span> ( !<a class="code" href="class_qwt_abstract_scale_draw.html#95d74d9eaa5520754295efb33a4db50f">hasComponent</a>(QwtAbstractScaleDraw::Labels) )<a name="l00146"></a>00146 <span class="keywordflow">return</span>;<a name="l00147"></a>00147 <a name="l00148"></a>00148 <span class="keyword">const</span> QwtValueList &ticks = <a class="code" href="class_qwt_abstract_scale_draw.html#82510027cd5bee269628c9d6302a19a9">scaleDiv</a>().<a class="code" href="class_qwt_scale_div.html#c6310b93e4b505e62d2141ba6a8e90ee">ticks</a>(QwtScaleDiv::MajorTick);<a name="l00149"></a>00149 <span class="keywordflow">if</span> ( ticks.count() == 0 ) <a name="l00150"></a>00150 <span class="keywordflow">return</span>;<a name="l00151"></a>00151 <a name="l00152"></a>00152 QRect lr = <a class="code" href="class_qwt_scale_draw.html#4c04330f45af01bb950ba0490681715f">labelRect</a>(font, ticks[0]);<a name="l00153"></a>00153 <a name="l00154"></a>00154 <span class="comment">// find the distance between tick and border</span><a name="l00155"></a>00155 <span class="keywordtype">int</span> off = qwtAbs(<a class="code" href="class_qwt_abstract_scale_draw.html#9777f34effee2395dde92a42ef7902fd">map</a>().transform(ticks[0]) - qRound(<a class="code" href="class_qwt_abstract_scale_draw.html#9777f34effee2395dde92a42ef7902fd">map</a>().p1()));<a name="l00156"></a>00156 <a name="l00157"></a>00157 <span class="keywordflow">if</span> ( <a class="code" href="class_qwt_scale_draw.html#06bf10d73aa03c16394a85fa70a7a3b1">orientation</a>() == Qt::Vertical )<a name="l00158"></a>00158 end = lr.bottom() + 1 - off;<a name="l00159"></a>00159 <span class="keywordflow">else</span><a name="l00160"></a>00160 start = -lr.left() - off;<a name="l00161"></a>00161 <a name="l00162"></a>00162 <span class="keyword">const</span> <span class="keywordtype">int</span> lastTick = ticks.count() - 1;⌨️ 快捷键说明
复制代码Ctrl + C
搜索代码Ctrl + F
全屏模式F11
增大字号Ctrl + =
减小字号Ctrl + -
显示快捷键?