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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_plot_svgitem.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_plot_svgitem.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 <qglobal.h></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">#if QT_VERSION >= 0x040100</span><a name="l00014"></a>00014 <span class="preprocessor"></span><span class="preprocessor">#include <qsvgrenderer.h></span><a name="l00015"></a>00015 <span class="preprocessor">#else</span><a name="l00016"></a>00016 <span class="preprocessor"></span><span class="preprocessor">#include <qbuffer.h></span><a name="l00017"></a>00017 <span class="preprocessor">#include <qpicture.h></span><a name="l00018"></a>00018 <span class="preprocessor">#endif</span><a name="l00019"></a>00019 <span class="preprocessor"></span><span class="preprocessor">#if QT_VERSION < 0x040000</span><a name="l00020"></a>00020 <span class="preprocessor"></span><span class="preprocessor">#include <qpaintdevicemetrics.h></span><a name="l00021"></a>00021 <span class="preprocessor">#endif</span><a name="l00022"></a>00022 <span class="preprocessor"></span><span class="preprocessor">#include <qwt_scale_map.h></span><a name="l00023"></a>00023 <span class="preprocessor">#include <qwt_legend.h></span><a name="l00024"></a>00024 <span class="preprocessor">#include <qwt_legend_item.h></span><a name="l00025"></a>00025 <span class="preprocessor">#include "qwt_plot_svgitem.h"</span><a name="l00026"></a>00026 <a name="l00027"></a>00027 <span class="keyword">class </span>QwtPlotSvgItem::PrivateData<a name="l00028"></a>00028 {<a name="l00029"></a>00029 <span class="keyword">public</span>:<a name="l00030"></a>00030 PrivateData()<a name="l00031"></a>00031 {<a name="l00032"></a>00032 }<a name="l00033"></a>00033 <a name="l00034"></a>00034 QwtDoubleRect <a class="code" href="class_qwt_plot_svg_item.html#6d93e375e320cef36e00e88a8d9b7b36">boundingRect</a>;<a name="l00035"></a>00035 <span class="preprocessor">#if QT_VERSION >= 0x040100</span><a name="l00036"></a>00036 <span class="preprocessor"></span> QSvgRenderer renderer;<a name="l00037"></a>00037 <span class="preprocessor">#else</span><a name="l00038"></a>00038 <span class="preprocessor"></span> QPicture picture;<a name="l00039"></a>00039 <span class="preprocessor">#endif</span><a name="l00040"></a>00040 <span class="preprocessor"></span>};<a name="l00041"></a>00041 <a name="l00051"></a><a class="code" href="class_qwt_plot_svg_item.html#3b6e505f0ef1d9e40030db2a8b60762e">00051</a> <a class="code" href="class_qwt_plot_svg_item.html#3b6e505f0ef1d9e40030db2a8b60762e">QwtPlotSvgItem::QwtPlotSvgItem</a>(<span class="keyword">const</span> QString& <a class="code" href="class_qwt_plot_item.html#3859d011b670b5f89e45d1ccef9206f7">title</a>):<a name="l00052"></a>00052 <a class="code" href="class_qwt_plot_item.html">QwtPlotItem</a>(<a class="code" href="class_qwt_text.html">QwtText</a>(title))<a name="l00053"></a>00053 {<a name="l00054"></a>00054 init();<a name="l00055"></a>00055 }<a name="l00056"></a>00056 <a name="l00066"></a><a class="code" href="class_qwt_plot_svg_item.html#c750a4ff902302ab485971fcea6bee38">00066</a> <a class="code" href="class_qwt_plot_svg_item.html#3b6e505f0ef1d9e40030db2a8b60762e">QwtPlotSvgItem::QwtPlotSvgItem</a>(<span class="keyword">const</span> <a class="code" href="class_qwt_text.html">QwtText</a>& title):<a name="l00067"></a>00067 <a class="code" href="class_qwt_plot_item.html">QwtPlotItem</a>(title)<a name="l00068"></a>00068 {<a name="l00069"></a>00069 init();<a name="l00070"></a>00070 }<a name="l00071"></a>00071 <a name="l00073"></a><a class="code" href="class_qwt_plot_svg_item.html#4509baf861772124c71abd1b6514b319">00073</a> <a class="code" href="class_qwt_plot_svg_item.html#4509baf861772124c71abd1b6514b319">QwtPlotSvgItem::~QwtPlotSvgItem</a>()<a name="l00074"></a>00074 {<a name="l00075"></a>00075 <span class="keyword">delete</span> d_data;<a name="l00076"></a>00076 }<a name="l00077"></a>00077 <a name="l00078"></a>00078 <span class="keywordtype">void</span> QwtPlotSvgItem::init()<a name="l00079"></a>00079 {<a name="l00080"></a>00080 d_data = <span class="keyword">new</span> PrivateData();<a name="l00081"></a>00081 <a name="l00082"></a>00082 <a class="code" href="class_qwt_plot_item.html#5a335be8ff488809a2cf7f4b734ad1b6">setItemAttribute</a>(QwtPlotItem::AutoScale, <span class="keyword">true</span>);<a name="l00083"></a>00083 <a class="code" href="class_qwt_plot_item.html#5a335be8ff488809a2cf7f4b734ad1b6">setItemAttribute</a>(QwtPlotItem::Legend, <span class="keyword">false</span>);<a name="l00084"></a>00084 <a name="l00085"></a>00085 <a class="code" href="class_qwt_plot_item.html#57d90e4146133b59d589c71b3a643e82">setZ</a>(8.0);<a name="l00086"></a>00086 }<a name="l00087"></a>00087 <a name="l00089"></a><a class="code" href="class_qwt_plot_svg_item.html#4331deca8a2ecdd6a7ebe1be7de22969">00089</a> <span class="keywordtype">int</span> <a class="code" href="class_qwt_plot_svg_item.html#4331deca8a2ecdd6a7ebe1be7de22969">QwtPlotSvgItem::rtti</a>()<span class="keyword"> const</span><a name="l00090"></a>00090 <span class="keyword"></span>{<a name="l00091"></a>00091 <span class="keywordflow">return</span> QwtPlotItem::Rtti_PlotSVG;<a name="l00092"></a>00092 }<a name="l00093"></a>00093 <a name="l00102"></a><a class="code" href="class_qwt_plot_svg_item.html#b85890e7f1d89616c99fe34fa29f5d8f">00102</a> <span class="keywordtype">bool</span> <a class="code" href="class_qwt_plot_svg_item.html#b85890e7f1d89616c99fe34fa29f5d8f">QwtPlotSvgItem::loadFile</a>(<span class="keyword">const</span> QwtDoubleRect &rect, <a name="l00103"></a>00103 <span class="keyword">const</span> QString &fileName)<a name="l00104"></a>00104 {<a name="l00105"></a>00105 d_data->boundingRect = rect;<a name="l00106"></a>00106 <span class="preprocessor">#if QT_VERSION >= 0x040100</span><a name="l00107"></a>00107 <span class="preprocessor"></span> <span class="keyword">const</span> <span class="keywordtype">bool</span> ok = d_data->renderer.load(fileName);<a name="l00108"></a>00108 <span class="preprocessor">#else</span><a name="l00109"></a>00109 <span class="preprocessor"></span> <span class="keyword">const</span> <span class="keywordtype">bool</span> ok = d_data->picture.load(fileName, <span class="stringliteral">"svg"</span>);<a name="l00110"></a>00110 <span class="preprocessor">#endif</span><a name="l00111"></a>00111 <span class="preprocessor"></span> <a class="code" href="class_qwt_plot_item.html#d956fdbce5b0721abccce6d09fe4d5ce">itemChanged</a>();<a name="l00112"></a>00112 <span class="keywordflow">return</span> ok;<a name="l00113"></a>00113 }<a name="l00114"></a>00114 <a name="l00123"></a><a class="code" href="class_qwt_plot_svg_item.html#f40a77332482f79aa4d5254a9123508d">00123</a> <span class="keywordtype">bool</span> <a class="code" href="class_qwt_plot_svg_item.html#f40a77332482f79aa4d5254a9123508d">QwtPlotSvgItem::loadData</a>(<span class="keyword">const</span> QwtDoubleRect &rect, <a name="l00124"></a>00124 <span class="keyword">const</span> QByteArray &data)<a name="l00125"></a>00125 {<a name="l00126"></a>00126 d_data->boundingRect = rect;<a name="l00127"></a>00127 <span class="preprocessor">#if QT_VERSION >= 0x040100</span><a name="l00128"></a>00128 <span class="preprocessor"></span> <span class="keyword">const</span> <span class="keywordtype">bool</span> ok = d_data->renderer.load(data);<a name="l00129"></a>00129 <span class="preprocessor">#else</span><a name="l00130"></a>00130 <span class="preprocessor"></span><span class="preprocessor">#if QT_VERSION >= 0x040000</span><a name="l00131"></a>00131 <span class="preprocessor"></span> QBuffer buffer(&(QByteArray&)data);<a name="l00132"></a>00132 <span class="preprocessor">#else</span><a name="l00133"></a>00133 <span class="preprocessor"></span> QBuffer buffer(data);<a name="l00134"></a>00134 <span class="preprocessor">#endif</span><a name="l00135"></a>00135 <span class="preprocessor"></span> <span class="keyword">const</span> <span class="keywordtype">bool</span> ok = d_data->picture.load(&buffer, <span class="stringliteral">"svg"</span>);<a name="l00136"></a>00136 <span class="preprocessor">#endif</span><a name="l00137"></a>00137 <span class="preprocessor"></span> <a class="code" href="class_qwt_plot_item.html#d956fdbce5b0721abccce6d09fe4d5ce">itemChanged</a>();<a name="l00138"></a>00138 <span class="keywordflow">return</span> ok;<a name="l00139"></a>00139 }<a name="l00140"></a>00140 <a name="l00142"></a><a class="code" href="class_qwt_plot_svg_item.html#6d93e375e320cef36e00e88a8d9b7b36">00142</a> QwtDoubleRect <a class="code" href="class_qwt_plot_svg_item.html#6d93e375e320cef36e00e88a8d9b7b36">QwtPlotSvgItem::boundingRect</a>()<span class="keyword"> const</span><a name="l00143"></a>00143 <span class="keyword"></span>{<a name="l00144"></a>00144 <span class="keywordflow">return</span> d_data->boundingRect;<a name="l00145"></a>00145 }<a name="l00146"></a>00146 ⌨️ 快捷键说明
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