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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_text_label.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_text_label.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 <qpainter.h></span><a name="l00013"></a>00013 <span class="preprocessor">#include <qevent.h></span><a name="l00014"></a>00014 <span class="preprocessor">#include "qwt_text.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_text_label.h"</span><a name="l00017"></a>00017 <a name="l00018"></a>00018 <span class="keyword">class </span>QwtTextLabel::PrivateData<a name="l00019"></a>00019 {<a name="l00020"></a>00020 <span class="keyword">public</span>:<a name="l00021"></a>00021 PrivateData():<a name="l00022"></a>00022 <a class="code" href="class_qwt_text_label.html#56d1c5c770efd4f829f33d0b42f00c9b">indent</a>(4),<a name="l00023"></a>00023 <a class="code" href="class_qwt_text_label.html#b754bebe50bc0e713cde9ba58bf6c3c8">margin</a>(0)<a name="l00024"></a>00024 {<a name="l00025"></a>00025 }<a name="l00026"></a>00026 <a name="l00027"></a>00027 <span class="keywordtype">int</span> <a class="code" href="class_qwt_text_label.html#56d1c5c770efd4f829f33d0b42f00c9b">indent</a>;<a name="l00028"></a>00028 <span class="keywordtype">int</span> <a class="code" href="class_qwt_text_label.html#b754bebe50bc0e713cde9ba58bf6c3c8">margin</a>;<a name="l00029"></a>00029 <a class="code" href="class_qwt_text.html">QwtText</a> <a class="code" href="class_qwt_text_label.html#6ff4f9a87e11594740f312c8522f933e">text</a>;<a name="l00030"></a>00030 };<a name="l00031"></a>00031 <a name="l00036"></a><a class="code" href="class_qwt_text_label.html#95e022e766f4b9675f451482be7d654a">00036</a> <a class="code" href="class_qwt_text_label.html#95e022e766f4b9675f451482be7d654a">QwtTextLabel::QwtTextLabel</a>(QWidget *parent):<a name="l00037"></a>00037 QFrame(parent)<a name="l00038"></a>00038 {<a name="l00039"></a>00039 init();<a name="l00040"></a>00040 }<a name="l00041"></a>00041 <a name="l00042"></a>00042 <span class="preprocessor">#if QT_VERSION < 0x040000</span><a name="l00043"></a>00043 <span class="preprocessor"></span><a name="l00048"></a>00048 <a class="code" href="class_qwt_text_label.html#95e022e766f4b9675f451482be7d654a">QwtTextLabel::QwtTextLabel</a>(QWidget *parent, <span class="keyword">const</span> <span class="keywordtype">char</span> *name):<a name="l00049"></a>00049 QFrame(parent, name)<a name="l00050"></a>00050 {<a name="l00051"></a>00051 init();<a name="l00052"></a>00052 }<a name="l00053"></a>00053 <span class="preprocessor">#endif</span><a name="l00054"></a>00054 <span class="preprocessor"></span><a name="l00060"></a><a class="code" href="class_qwt_text_label.html#1a44e38b02bb398d315affe02bb4ea69">00060</a> <a class="code" href="class_qwt_text_label.html#95e022e766f4b9675f451482be7d654a">QwtTextLabel::QwtTextLabel</a>(<span class="keyword">const</span> <a class="code" href="class_qwt_text.html">QwtText</a> &text, QWidget *parent):<a name="l00061"></a>00061 QFrame(parent)<a name="l00062"></a>00062 {<a name="l00063"></a>00063 init();<a name="l00064"></a>00064 d_data->text = <a class="code" href="class_qwt_text_label.html#6ff4f9a87e11594740f312c8522f933e">text</a>;<a name="l00065"></a>00065 }<a name="l00066"></a>00066 <a name="l00068"></a><a class="code" href="class_qwt_text_label.html#df8f363200c527a6af4259647304be5a">00068</a> <a class="code" href="class_qwt_text_label.html#df8f363200c527a6af4259647304be5a">QwtTextLabel::~QwtTextLabel</a>()<a name="l00069"></a>00069 {<a name="l00070"></a>00070 <span class="keyword">delete</span> d_data;<a name="l00071"></a>00071 }<a name="l00072"></a>00072 <a name="l00073"></a>00073 <span class="keywordtype">void</span> QwtTextLabel::init()<a name="l00074"></a>00074 {<a name="l00075"></a>00075 d_data = <span class="keyword">new</span> PrivateData();<a name="l00076"></a>00076 setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred);<a name="l00077"></a>00077 }<a name="l00078"></a>00078 <a name="l00086"></a><a class="code" href="class_qwt_text_label.html#b300b9a0a6392e180f2caff41ba2b9b8">00086</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_text_label.html#b300b9a0a6392e180f2caff41ba2b9b8">QwtTextLabel::setText</a>(<span class="keyword">const</span> QString &text, <a class="code" href="class_qwt_text.html#63e0d6a59a427a37ed0bfa71b782fd76">QwtText::TextFormat</a> textFormat)<a name="l00087"></a>00087 {<a name="l00088"></a>00088 d_data->text.setText(text, textFormat);<a name="l00089"></a>00089 <a name="l00090"></a>00090 update();<a name="l00091"></a>00091 updateGeometry();<a name="l00092"></a>00092 }<a name="l00093"></a>00093 <a name="l00098"></a><a class="code" href="class_qwt_text_label.html#c43ba313b78dccf7aa7433f26059b2e2">00098</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_text_label.html#b300b9a0a6392e180f2caff41ba2b9b8">QwtTextLabel::setText</a>(<span class="keyword">const</span> <a class="code" href="class_qwt_text.html">QwtText</a> &text)<a name="l00099"></a>00099 {<a name="l00100"></a>00100 d_data->text = <a class="code" href="class_qwt_text_label.html#6ff4f9a87e11594740f312c8522f933e">text</a>;<a name="l00101"></a>00101 <a name="l00102"></a>00102 update();<a name="l00103"></a>00103 updateGeometry();<a name="l00104"></a>00104 }<a name="l00105"></a>00105 <a name="l00107"></a><a class="code" href="class_qwt_text_label.html#6ff4f9a87e11594740f312c8522f933e">00107</a> <span class="keyword">const</span> <a class="code" href="class_qwt_text.html">QwtText</a> &<a class="code" href="class_qwt_text_label.html#6ff4f9a87e11594740f312c8522f933e">QwtTextLabel::text</a>()<span class="keyword"> const</span><a name="l00108"></a>00108 <span class="keyword"></span>{<a name="l00109"></a>00109 <span class="keywordflow">return</span> d_data->text;<a name="l00110"></a>00110 }<a name="l00111"></a>00111 <a name="l00113"></a><a class="code" href="class_qwt_text_label.html#6674cebd85cf692d154f967887547e11">00113</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_text_label.html#6674cebd85cf692d154f967887547e11">QwtTextLabel::clear</a>()<a name="l00114"></a>00114 {<a name="l00115"></a>00115 d_data->text = <a class="code" href="class_qwt_text.html">QwtText</a>();<a name="l00116"></a>00116 <a name="l00117"></a>00117 update();<a name="l00118"></a>00118 updateGeometry();<a name="l00119"></a>00119 }<a name="l00120"></a>00120 <a name="l00122"></a><a class="code" href="class_qwt_text_label.html#56d1c5c770efd4f829f33d0b42f00c9b">00122</a> <span class="keywordtype">int</span> <a class="code" href="class_qwt_text_label.html#56d1c5c770efd4f829f33d0b42f00c9b">QwtTextLabel::indent</a>()<span class="keyword"> const</span><a name="l00123"></a>00123 <span class="keyword"></span>{<a name="l00124"></a>00124 <span class="keywordflow">return</span> d_data->indent;<a name="l00125"></a>00125 }<a name="l00126"></a>00126 <a name="l00131"></a><a class="code" href="class_qwt_text_label.html#ad25ab34c219f8d97ec7c39d064ed4a0">00131</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_text_label.html#ad25ab34c219f8d97ec7c39d064ed4a0">QwtTextLabel::setIndent</a>(<span class="keywordtype">int</span> indent)<a name="l00132"></a>00132 {<a name="l00133"></a>00133 <span class="keywordflow">if</span> ( indent < 0 )<a name="l00134"></a>00134 indent = 0;<a name="l00135"></a>00135 <a name="l00136"></a>00136 d_data->indent = indent;<a name="l00137"></a>00137 <a name="l00138"></a>00138 update();<a name="l00139"></a>00139 updateGeometry();<a name="l00140"></a>00140 }<a name="l00141"></a>00141 <a name="l00143"></a><a class="code" href="class_qwt_text_label.html#b754bebe50bc0e713cde9ba58bf6c3c8">00143</a> <span class="keywordtype">int</span> <a class="code" href="class_qwt_text_label.html#b754bebe50bc0e713cde9ba58bf6c3c8">QwtTextLabel::margin</a>()<span class="keyword"> const</span><a name="l00144"></a>00144 <span class="keyword"></span>{<a name="l00145"></a>00145 <span class="keywordflow">return</span> d_data->margin;<a name="l00146"></a>00146 }<a name="l00147"></a>00147 <a name="l00152"></a><a class="code" href="class_qwt_text_label.html#833d27574b72bbc135f2972c72382eba">00152</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_text_label.html#833d27574b72bbc135f2972c72382eba">QwtTextLabel::setMargin</a>(<span class="keywordtype">int</span> margin)<a name="l00153"></a>00153 {<a name="l00154"></a>00154 d_data->margin = margin;<a name="l00155"></a>00155 <a name="l00156"></a>00156 update();<a name="l00157"></a>00157 updateGeometry();<a name="l00158"></a>00158 }<a name="l00159"></a>00159 <a name="l00161"></a><a class="code" href="class_qwt_text_label.html#0217bc022e6f3b2f22819c84d5867ae7">00161</a> QSize <a class="code" href="class_qwt_text_label.html#0217bc022e6f3b2f22819c84d5867ae7">QwtTextLabel::sizeHint</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> <a class="code" href="class_qwt_text_label.html#75ed6482ddb21e4f67ad9272f2ce66bb">minimumSizeHint</a>();<a name="l00164"></a>00164 }<a name="l00165"></a>00165 <a name="l00167"></a><a class="code" href="class_qwt_text_label.html#75ed6482ddb21e4f67ad9272f2ce66bb">00167</a> QSize <a class="code" href="class_qwt_text_label.html#75ed6482ddb21e4f67ad9272f2ce66bb">QwtTextLabel::minimumSizeHint</a>()<span class="keyword"> const</span><a name="l00168"></a>00168 <span class="keyword"></span>{<a name="l00169"></a>00169 QSize sz = d_data->text.textSize(font());<a name="l00170"></a>00170 <a name="l00171"></a>00171 <span class="keywordtype">int</span> mw = 2 * (frameWidth() + d_data->margin);<a name="l00172"></a>00172 <span class="keywordtype">int</span> mh = mw;<a name="l00173"></a>00173 ⌨️ 快捷键说明
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