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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: QwtPlainTextEngine Class Reference</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 id="current"><a href="classes.html"><span>Classes</span></a></li> <li><a href="files.html"><span>Files</span></a></li> <li><a href="pages.html"><span>Related Pages</span></a></li> </ul></div><div class="tabs"> <ul> <li><a href="classes.html"><span>Alphabetical List</span></a></li> <li><a href="annotated.html"><span>Class List</span></a></li> <li><a href="hierarchy.html"><span>Class Hierarchy</span></a></li> <li><a href="functions.html"><span>Class Members</span></a></li> </ul></div><h1>QwtPlainTextEngine Class Reference</h1><!-- doxytag: class="QwtPlainTextEngine" --><!-- doxytag: inherits="QwtTextEngine" -->Inheritance diagram for QwtPlainTextEngine:<p><center><img src="class_qwt_plain_text_engine__inherit__graph.png" border="0" usemap="#_qwt_plain_text_engine__inherit__map" alt="Inheritance graph"></center><map name="_qwt_plain_text_engine__inherit__map"><area href="class_qwt_text_engine.html" shape="rect" coords="20,8,132,32" alt=""></map><center><font size="2">[<a href="graph_legend.html">legend</a>]</font></center>Collaboration diagram for QwtPlainTextEngine:<p><center><img src="class_qwt_plain_text_engine__coll__graph.png" border="0" usemap="#_qwt_plain_text_engine__coll__map" alt="Collaboration graph"></center><map name="_qwt_plain_text_engine__coll__map"><area href="class_qwt_text_engine.html" shape="rect" coords="20,8,132,32" alt=""></map><center><font size="2">[<a href="graph_legend.html">legend</a>]</font></center><a href="class_qwt_plain_text_engine-members.html">List of all members.</a><hr><a name="_details"></a><h2>Detailed Description</h2>A text engine for plain texts. <p><a class="el" href="class_qwt_plain_text_engine.html">QwtPlainTextEngine</a> renders texts using the basic Qt classes QPainter and QFontMetrics. <p><p>Definition at line <a class="el" href="qwt__text__engine_8h-source.html#l00116">116</a> of file <a class="el" href="qwt__text__engine_8h-source.html">qwt_text_engine.h</a>.<table border="0" cellpadding="0" cellspacing="0"><tr><td></td></tr><tr><td colspan="2"><br><h2>Public Member Functions</h2></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plain_text_engine.html#0ad29b2229a879afe49b546704eb7079">QwtPlainTextEngine</a> ()</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">virtual </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plain_text_engine.html#0ada8796b2caaff7bb8d61e9fb1b5143">~QwtPlainTextEngine</a> ()</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">virtual int </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plain_text_engine.html#167f419dc7a3a172b59f78c9f480fd0d">heightForWidth</a> (const QFont &font, int flags, const QString &text, int width) const </td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">virtual QSize </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plain_text_engine.html#3d6bd4659b061733ddfd9b3915077b75">textSize</a> (const QFont &font, int flags, const QString &text) const </td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plain_text_engine.html#d953f35830710b9527ca61d931a3debc">draw</a> (QPainter *painter, const QRect &rect, int flags, const QString &text) const </td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">virtual bool </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plain_text_engine.html#e7bd7417f0173e2d35fe1bf7a514ec9b">mightRender</a> (const QString &) const </td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_plain_text_engine.html#d14b14ba0f38576c7d562e5c5d70d8f3">textMargins</a> (const QFont &, const QString &, int &left, int &right, int &top, int &bottom) const </td></tr></table><hr><h2>Constructor & Destructor Documentation</h2><a class="anchor" name="0ad29b2229a879afe49b546704eb7079"></a><!-- doxytag: member="QwtPlainTextEngine::QwtPlainTextEngine" ref="0ad29b2229a879afe49b546704eb7079" args="()" --><p><table class="mdTable" cellpadding="2" cellspacing="0"> <tr> <td class="mdRow"> <table cellpadding="0" cellspacing="0" border="0"> <tr> <td class="md" nowrap valign="top">QwtPlainTextEngine::QwtPlainTextEngine </td> <td class="md" valign="top">( </td> <td class="mdname1" valign="top" nowrap> </td> <td class="md" valign="top"> ) </td> <td class="md" nowrap></td> </tr> </table> </td> </tr></table><table cellspacing="5" cellpadding="0" border="0"> <tr> <td> </td> <td><p>Constructor. <p><p>Definition at line <a class="el" href="qwt__text__engine_8cpp-source.html#l00134">134</a> of file <a class="el" href="qwt__text__engine_8cpp-source.html">qwt_text_engine.cpp</a>. </td> </tr></table><a class="anchor" name="0ada8796b2caaff7bb8d61e9fb1b5143"></a><!-- doxytag: member="QwtPlainTextEngine::~QwtPlainTextEngine" ref="0ada8796b2caaff7bb8d61e9fb1b5143" args="()" --><p><table class="mdTable" cellpadding="2" cellspacing="0"> <tr> <td class="mdRow"> <table cellpadding="0" cellspacing="0" border="0"> <tr> <td class="md" nowrap valign="top">QwtPlainTextEngine::~QwtPlainTextEngine </td> <td class="md" valign="top">( </td> <td class="mdname1" valign="top" nowrap> </td> <td class="md" valign="top"> ) </td> <td class="md" nowrap><code> [virtual]</code></td> </tr> </table> </td> </tr></table><table cellspacing="5" cellpadding="0" border="0"> <tr> <td> </td> <td><p>Destructor. <p><p>Definition at line <a class="el" href="qwt__text__engine_8cpp-source.html#l00140">140</a> of file <a class="el" href="qwt__text__engine_8cpp-source.html">qwt_text_engine.cpp</a>. </td> </tr></table><hr><h2>Member Function Documentation</h2><a class="anchor" name="d953f35830710b9527ca61d931a3debc"></a><!-- doxytag: member="QwtPlainTextEngine::draw" ref="d953f35830710b9527ca61d931a3debc" args="(QPainter *painter, const QRect &rect, int flags, const QString &text) const " --><p><table class="mdTable" cellpadding="2" cellspacing="0"> <tr> <td class="mdRow"> <table cellpadding="0" cellspacing="0" border="0"> <tr> <td class="md" nowrap valign="top">void QwtPlainTextEngine::draw </td> <td class="md" valign="top">( </td> <td class="md" nowrap valign="top">QPainter * </td> <td class="mdname" nowrap> <em>painter</em>, </td> </tr> <tr> <td class="md" nowrap align="right"></td> <td class="md"></td> <td class="md" nowrap>const QRect & </td> <td class="mdname" nowrap> <em>rect</em>, </td> </tr> <tr> <td class="md" nowrap align="right"></td> <td class="md"></td> <td class="md" nowrap>int </td> <td class="mdname" nowrap> <em>flags</em>, </td> </tr> <tr> <td class="md" nowrap align="right"></td> <td class="md"></td> <td class="md" nowrap>const QString & </td> <td class="mdname" nowrap> <em>text</em></td> </tr> <tr> <td class="md"></td> <td class="md">) </td> <td class="md" colspan="2"> const<code> [virtual]</code></td> </tr> </table> </td> </tr></table><table cellspacing="5" cellpadding="0" border="0"> <tr> <td> </td> <td><p>Draw the text in a clipping rectangle. <p>A wrapper for QPainter::drawText.<p><dl compact><dt><b>Parameters:</b></dt><dd> <table border="0" cellspacing="2" cellpadding="0"> <tr><td valign="top"></td><td valign="top"><em>painter</em> </td><td>Painter </td></tr> <tr><td valign="top"></td><td valign="top"><em>rect</em> </td><td>Clipping rectangle </td></tr> <tr><td valign="top"></td><td valign="top"><em>flags</em> </td><td>Bitwise OR of the flags used like in QPainter::drawText </td></tr> <tr><td valign="top"></td><td valign="top"><em>text</em> </td><td>Text to be rendered </td></tr> </table></dl><p>Implements <a class="el" href="class_qwt_text_engine.html#cf750dd01aa35f5c9fc836460c30d663">QwtTextEngine</a>.<p>Definition at line <a class="el" href="qwt__text__engine_8cpp-source.html#l00213">213</a> of file <a class="el" href="qwt__text__engine_8cpp-source.html">qwt_text_engine.cpp</a>.<p>References <a class="el" href="qwt__painter_8cpp-source.html#l00323">QwtPainter::drawText()</a>. </td> </tr></table><a class="anchor" name="167f419dc7a3a172b59f78c9f480fd0d"></a><!-- doxytag: member="QwtPlainTextEngine::heightForWidth" ref="167f419dc7a3a172b59f78c9f480fd0d" args="(const QFont &font, int flags, const QString &text, int width) const " --><p><table class="mdTable" cellpadding="2" cellspacing="0"> <tr> <td class="mdRow"> <table cellpadding="0" cellspacing="0" border="0"> <tr> <td class="md" nowrap valign="top">int QwtPlainTextEngine::heightForWidth </td> <td class="md" valign="top">( </td> <td class="md" nowrap valign="top">const QFont & </td> <td class="mdname" nowrap> <em>font</em>, </td> </tr> <tr> <td class="md" nowrap align="right"></td> <td class="md"></td> <td class="md" nowrap>int </td> <td class="mdname" nowrap> <em>flags</em>, </td> </tr> <tr> <td class="md" nowrap align="right"></td> <td class="md"></td> <td class="md" nowrap>const QString & </td> <td class="mdname" nowrap> <em>text</em>, </td> </tr> <tr> <td class="md" nowrap align="right"></td>⌨️ 快捷键说明
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