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<div id="projectname">Qwt User's Guide <span id="projectnumber">6.0.1</span></div>
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<h1>qwt_text_engine.h</h1> </div>
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<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) 2003 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_TEXT_ENGINE_H</span>
<a name="l00011"></a>00011 <span class="preprocessor"></span><span class="preprocessor">#define QWT_TEXT_ENGINE_H 1</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 <span class="preprocessor">#include <qsize.h></span>
<a name="l00015"></a>00015
<a name="l00016"></a>00016 <span class="keyword">class </span>QFont;
<a name="l00017"></a>00017 <span class="keyword">class </span>QRectF;
<a name="l00018"></a>00018 <span class="keyword">class </span>QString;
<a name="l00019"></a>00019 <span class="keyword">class </span>QPainter;
<a name="l00020"></a>00020
<a name="l00035"></a><a class="code" href="class_qwt_text_engine.html">00035</a> <span class="keyword">class </span>QWT_EXPORT <a class="code" href="class_qwt_text_engine.html" title="Abstract base class for rendering text strings.">QwtTextEngine</a>
<a name="l00036"></a>00036 {
<a name="l00037"></a>00037 <span class="keyword">public</span>:
<a name="l00038"></a>00038 <span class="keyword">virtual</span> ~<a class="code" href="class_qwt_text_engine.html" title="Abstract base class for rendering text strings.">QwtTextEngine</a>();
<a name="l00039"></a>00039
<a name="l00050"></a>00050 <span class="keyword">virtual</span> <span class="keywordtype">double</span> heightForWidth( <span class="keyword">const</span> QFont &font, <span class="keywordtype">int</span> flags,
<a name="l00051"></a>00051 <span class="keyword">const</span> QString &text, <span class="keywordtype">double</span> width ) <span class="keyword">const</span> = 0;
<a name="l00052"></a>00052
<a name="l00062"></a>00062 <span class="keyword">virtual</span> QSizeF textSize( <span class="keyword">const</span> QFont &font, <span class="keywordtype">int</span> flags,
<a name="l00063"></a>00063 <span class="keyword">const</span> QString &text ) <span class="keyword">const</span> = 0;
<a name="l00064"></a>00064
<a name="l00071"></a>00071 <span class="keyword">virtual</span> <span class="keywordtype">bool</span> mightRender( <span class="keyword">const</span> QString &text ) <span class="keyword">const</span> = 0;
<a name="l00072"></a>00072
<a name="l00088"></a>00088 <span class="keyword">virtual</span> <span class="keywordtype">void</span> textMargins( <span class="keyword">const</span> QFont &font, <span class="keyword">const</span> QString &text,
<a name="l00089"></a>00089 <span class="keywordtype">double</span> &left, <span class="keywordtype">double</span> &right, <span class="keywordtype">double</span> &top, <span class="keywordtype">double</span> &bottom ) <span class="keyword">const</span> = 0;
<a name="l00090"></a>00090
<a name="l00099"></a>00099 <span class="keyword">virtual</span> <span class="keywordtype">void</span> draw( QPainter *painter, <span class="keyword">const</span> QRectF &rect,
<a name="l00100"></a>00100 <span class="keywordtype">int</span> flags, <span class="keyword">const</span> QString &text ) <span class="keyword">const</span> = 0;
<a name="l00101"></a>00101
<a name="l00102"></a>00102 <span class="keyword">protected</span>:
<a name="l00103"></a>00103 <a class="code" href="class_qwt_text_engine.html" title="Abstract base class for rendering text strings.">QwtTextEngine</a>();
<a name="l00104"></a>00104 };
<a name="l00105"></a>00105
<a name="l00106"></a>00106
<a name="l00113"></a><a class="code" href="class_qwt_plain_text_engine.html">00113</a> <span class="keyword">class </span>QWT_EXPORT <a class="code" href="class_qwt_plain_text_engine.html" title="A text engine for plain texts.">QwtPlainTextEngine</a>: <span class="keyword">public</span> <a class="code" href="class_qwt_text_engine.html" title="Abstract base class for rendering text strings.">QwtTextEngine</a>
<a name="l00114"></a>00114 {
<a name="l00115"></a>00115 <span class="keyword">public</span>:
<a name="l00116"></a>00116 <a class="code" href="class_qwt_plain_text_engine.html" title="A text engine for plain texts.">QwtPlainTextEngine</a>();
<a name="l00117"></a>00117 <span class="keyword">virtual</span> ~<a class="code" href="class_qwt_plain_text_engine.html" title="A text engine for plain texts.">QwtPlainTextEngine</a>();
<a name="l00118"></a>00118
<a name="l00119"></a>00119 <span class="keyword">virtual</span> <span class="keywordtype">double</span> <a class="code" href="class_qwt_text_engine.html#aee891b14d90c817b8c73d551f623cc17">heightForWidth</a>( <span class="keyword">const</span> QFont &font, <span class="keywordtype">int</span> flags,
<a name="l00120"></a>00120 <span class="keyword">const</span> QString &text, <span class="keywordtype">double</span> width ) <span class="keyword">const</span>;
<a name="l00121"></a>00121
<a name="l00122"></a>00122 <span class="keyword">virtual</span> QSizeF <a class="code" href="class_qwt_text_engine.html#ad9382cc8ff22c6b3e448fce566a76178">textSize</a>( <span class="keyword">const</span> QFont &font, <span class="keywordtype">int</span> flags,
<a name="l00123"></a>00123 <span class="keyword">const</span> QString &text ) <span class="keyword">const</span>;
<a name="l00124"></a>00124
<a name="l00125"></a>00125 <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="class_qwt_text_engine.html#ad727f58f9eebfec86369e7f2e5bf6a59">draw</a>( QPainter *painter, <span class="keyword">const</span> QRectF &rect,
<a name="l00126"></a>00126 <span class="keywordtype">int</span> flags, <span class="keyword">const</span> QString &text ) <span class="keyword">const</span>;
<a name="l00127"></a>00127
<a name="l00128"></a>00128 <span class="keyword">virtual</span> <span class="keywordtype">bool</span> <a class="code" href="class_qwt_text_engine.html#a98316f2f6f4f50216ceffbe9babe2901">mightRender</a>( <span class="keyword">const</span> QString & ) <span class="keyword">const</span>;
<a name="l00129"></a>00129
<a name="l00130"></a>00130 <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="class_qwt_text_engine.html#a83c8d3dc590b9914e9216c01e78e0838">textMargins</a>( <span class="keyword">const</span> QFont &, <span class="keyword">const</span> QString &,
<a name="l00131"></a>00131 <span class="keywordtype">double</span> &left, <span class="keywordtype">double</span> &right, <span class="keywordtype">double</span> &top, <span class="keywordtype">double</span> &bottom ) <span class="keyword">const</span>;
<a name="l00132"></a>00132
<a name="l00133"></a>00133 <span class="keyword">private</span>:
<a name="l00134"></a>00134 <span class="keyword">class </span>PrivateData;
<a name="l00135"></a>00135 PrivateData *d_data;
<a name="l00136"></a>00136 };
<a name="l00137"></a>00137
<a name="l00138"></a>00138
<a name="l00139"></a>00139 <span class="preprocessor">#ifndef QT_NO_RICHTEXT</span>
<a name="l00140"></a>00140 <span class="preprocessor"></span>
<a name="l00147"></a><a class="code" href="class_qwt_rich_text_engine.html">00147</a> <span class="keyword">class </span>QWT_EXPORT <a class="code" href="class_qwt_rich_text_engine.html" title="A text engine for Qt rich texts.">QwtRichTextEngine</a>: <span class="keyword">public</span> <a class="code" href="class_qwt_text_engine.html" title="Abstract base class for rendering text strings.">QwtTextEngine</a>
<a name="l00148"></a>00148 {
<a name="l00149"></a>00149 <span class="keyword">public</span>:
<a name="l00150"></a>00150 <a class="code" href="class_qwt_rich_text_engine.html" title="A text engine for Qt rich texts.">QwtRichTextEngine</a>();
<a name="l00151"></a>00151
<a name="l00152"></a>00152 <span class="keyword">virtual</span> <span class="keywordtype">double</span> <a class="code" href="class_qwt_text_engine.html#aee891b14d90c817b8c73d551f623cc17">heightForWidth</a>( <span class="keyword">const</span> QFont &font, <span class="keywordtype">int</span> flags,
<a name="l00153"></a>00153 <span class="keyword">const</span> QString &text, <span class="keywordtype">double</span> width ) <span class="keyword">const</span>;
<a name="l00154"></a>00154
<a name="l00155"></a>00155 <span class="keyword">virtual</span> QSizeF <a class="code" href="class_qwt_text_engine.html#ad9382cc8ff22c6b3e448fce566a76178">textSize</a>( <span class="keyword">const</span> QFont &font, <span class="keywordtype">int</span> flags,
<a name="l00156"></a>00156 <span class="keyword">const</span> QString &text ) <span class="keyword">const</span>;
<a name="l00157"></a>00157
<a name="l00158"></a>00158 <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="class_qwt_text_engine.html#ad727f58f9eebfec86369e7f2e5bf6a59">draw</a>( QPainter *painter, <span class="keyword">const</span> QRectF &rect,
<a name="l00159"></a>00159 <span class="keywordtype">int</span> flags, <span class="keyword">const</span> QString &text ) <span class="keyword">const</span>;
<a name="l00160"></a>00160
<a name="l00161"></a>00161 <span class="keyword">virtual</span> <span class="keywordtype">bool</span> <a class="code" href="class_qwt_text_engine.html#a98316f2f6f4f50216ceffbe9babe2901">mightRender</a>( <span class="keyword">const</span> QString & ) <span class="keyword">const</span>;
<a name="l00162"></a>00162
<a name="l00163"></a>00163 <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="class_qwt_text_engine.html#a83c8d3dc590b9914e9216c01e78e0838">textMargins</a>( <span class="keyword">const</span> QFont &, <span class="keyword">const</span> QString &,
<a name="l00164"></a>00164 <span class="keywordtype">double</span> &left, <span class="keywordtype">double</span> &right, <span class="keywordtype">double</span> &top, <span class="keywordtype">double</span> &bottom ) <span class="keyword">const</span>;
<a name="l00165"></a>00165
<a name="l00166"></a>00166 <span class="keyword">private</span>:
<a name="l00167"></a>00167 QString taggedText( <span class="keyword">const</span> QString &, <span class="keywordtype">int</span> flags ) <span class="keyword">const</span>;
<a name="l00168"></a>00168 };
<a name="l00169"></a>00169
<a name="l00170"></a>00170 <span class="preprocessor">#endif // !QT_NO_RICHTEXT</span>
<a name="l00171"></a>00171 <span class="preprocessor"></span>
<a name="l00172"></a>00172 <span class="preprocessor">#endif</span>
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