qwt__plot__rasteritem_8h-source.html
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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_rasteritem.h 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_rasteritem.h</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">#ifndef QWT_PLOT_RASTERITEM_H</span><a name="l00011"></a>00011 <span class="preprocessor"></span><span class="preprocessor">#define QWT_PLOT_RASTERITEM_H</span><a name="l00012"></a>00012 <span class="preprocessor"></span><a name="l00013"></a>00013 <span class="preprocessor">#include <qglobal.h></span><a name="l00014"></a>00014 <span class="preprocessor">#include <qstring.h></span><a name="l00015"></a>00015 <span class="preprocessor">#include <qimage.h></span><a name="l00016"></a>00016 <a name="l00017"></a>00017 <span class="preprocessor">#include "qwt_plot_item.h"</span> <a name="l00018"></a>00018 <a name="l00036"></a><a class="code" href="class_qwt_plot_raster_item.html">00036</a> <span class="keyword">class </span>QWT_EXPORT <a class="code" href="class_qwt_plot_raster_item.html">QwtPlotRasterItem</a>: <span class="keyword">public</span> <a class="code" href="class_qwt_plot_item.html">QwtPlotItem</a><a name="l00037"></a>00037 {<a name="l00038"></a>00038 <span class="keyword">public</span>:<a name="l00056"></a><a class="code" href="class_qwt_plot_raster_item.html#94929fc4c31c3dab75ee5adcac2d57b0">00056</a> <span class="keyword">enum</span> <a class="code" href="class_qwt_plot_raster_item.html#94929fc4c31c3dab75ee5adcac2d57b0">CachePolicy</a><a name="l00057"></a>00057 {<a name="l00058"></a>00058 NoCache,<a name="l00059"></a>00059 PaintCache,<a name="l00060"></a>00060 ScreenCache<a name="l00061"></a>00061 };<a name="l00062"></a>00062 <a name="l00063"></a>00063 <span class="keyword">explicit</span> <a class="code" href="class_qwt_plot_raster_item.html">QwtPlotRasterItem</a>(<span class="keyword">const</span> QString& title = QString::null);<a name="l00064"></a>00064 <span class="keyword">explicit</span> <a class="code" href="class_qwt_plot_raster_item.html">QwtPlotRasterItem</a>(<span class="keyword">const</span> <a class="code" href="class_qwt_text.html">QwtText</a>& title);<a name="l00065"></a>00065 <span class="keyword">virtual</span> ~<a class="code" href="class_qwt_plot_raster_item.html">QwtPlotRasterItem</a>();<a name="l00066"></a>00066 <a name="l00067"></a>00067 <span class="keywordtype">void</span> setAlpha(<span class="keywordtype">int</span> alpha);<a name="l00068"></a>00068 <span class="keywordtype">int</span> alpha() <span class="keyword">const</span>;<a name="l00069"></a>00069 <a name="l00070"></a>00070 <span class="keywordtype">void</span> setCachePolicy(CachePolicy);<a name="l00071"></a>00071 CachePolicy cachePolicy() <span class="keyword">const</span>;<a name="l00072"></a>00072 <a name="l00073"></a>00073 <span class="keywordtype">void</span> invalidateCache();<a name="l00074"></a>00074 <a name="l00075"></a>00075 <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="class_qwt_plot_item.html#5483623e4fd1ae85b06b93523784358b">draw</a>(QPainter *p,<a name="l00076"></a>00076 <span class="keyword">const</span> <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a> &xMap, <span class="keyword">const</span> <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a> &yMap,<a name="l00077"></a>00077 <span class="keyword">const</span> QRect &rect) <span class="keyword">const</span>;<a name="l00078"></a>00078 <a name="l00079"></a>00079 <span class="keyword">virtual</span> QSize rasterHint(<span class="keyword">const</span> QwtDoubleRect &) <span class="keyword">const</span>;<a name="l00080"></a>00080 <a name="l00081"></a>00081 <span class="keyword">protected</span>:<a name="l00082"></a>00082 <a name="l00093"></a>00093 <span class="keyword">virtual</span> QImage renderImage(<span class="keyword">const</span> <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a> &xMap, <a name="l00094"></a>00094 <span class="keyword">const</span> <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a> &yMap, <span class="keyword">const</span> QwtDoubleRect &area<a name="l00095"></a>00095 ) <span class="keyword">const </span>= 0;<a name="l00096"></a>00096 <a name="l00097"></a>00097 <span class="keyword">private</span>:<a name="l00098"></a>00098 <a class="code" href="class_qwt_plot_raster_item.html">QwtPlotRasterItem</a>( <span class="keyword">const</span> <a class="code" href="class_qwt_plot_raster_item.html">QwtPlotRasterItem</a> & );<a name="l00099"></a>00099 <a class="code" href="class_qwt_plot_raster_item.html">QwtPlotRasterItem</a> &operator=( <span class="keyword">const</span> <a class="code" href="class_qwt_plot_raster_item.html">QwtPlotRasterItem</a> & );<a name="l00100"></a>00100 <a name="l00101"></a>00101 <span class="keywordtype">void</span> init();<a name="l00102"></a>00102 <a name="l00103"></a>00103 <span class="keyword">class </span>PrivateData;<a name="l00104"></a>00104 PrivateData *d_data;<a name="l00105"></a>00105 };<a name="l00106"></a>00106 <a name="l00107"></a>00107 <span class="preprocessor">#endif</span></pre></div><hr size="1"><address style="align: right;"><small>Generated on Mon Feb 26 21:22:38 2007 for Qwt User's Guide by <a href="http://www.doxygen.org/index.html"><img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.4.6 </small></address></body></html>⌨️ 快捷键说明
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