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<h1>qwt_paint_buffer.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) 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_PAINT_BUFFER_H</span>
<a name="l00011"></a>00011 <span class="preprocessor"></span><span class="preprocessor">#define QWT_PAINT_BUFFER_H 1</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">#if QT_VERSION < 0x040000</span>
<a name="l00015"></a>00015 <span class="preprocessor"></span>
<a name="l00016"></a>00016 <span class="preprocessor">#include <qpixmap.h></span>
<a name="l00017"></a>00017 <span class="preprocessor">#include "qwt_global.h"</span>
<a name="l00018"></a>00018
<a name="l00019"></a>00019 <span class="keyword">class </span>QPainter;
<a name="l00020"></a>00020
<a name="l00029"></a>00029 <span class="keyword">class </span>QWT_EXPORT QwtPaintBuffer
<a name="l00030"></a>00030 {
<a name="l00031"></a>00031 <span class="keyword">public</span>:
<a name="l00032"></a>00032 <span class="keyword">explicit</span> QwtPaintBuffer();
<a name="l00033"></a>00033 <span class="keyword">explicit</span> QwtPaintBuffer(QPaintDevice *, <span class="keyword">const</span> QRect &, QPainter *p = NULL);
<a name="l00034"></a>00034
<a name="l00035"></a>00035 <span class="keyword">virtual</span> ~QwtPaintBuffer();
<a name="l00036"></a>00036
<a name="l00037"></a>00037 <span class="keywordtype">void</span> open(QPaintDevice *, <span class="keyword">const</span> QRect &, QPainter *p = NULL);
<a name="l00038"></a>00038 <span class="keywordtype">void</span> close();
<a name="l00039"></a>00039
<a name="l00040"></a>00040 QPainter *painter();
<a name="l00041"></a>00041 <span class="keyword">const</span> QPaintDevice *device();
<a name="l00042"></a>00042
<a name="l00043"></a>00043 <span class="keyword">static</span> <span class="keywordtype">void</span> setEnabled(<span class="keywordtype">bool</span> enable);
<a name="l00044"></a>00044 <span class="keyword">static</span> <span class="keywordtype">bool</span> isEnabled();
<a name="l00045"></a>00045
<a name="l00047"></a>00047 <span class="keyword">const</span> QPixmap &buffer()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> d_pixBuffer; }
<a name="l00048"></a>00048
<a name="l00049"></a>00049 <span class="keyword">protected</span>:
<a name="l00050"></a>00050 <span class="keywordtype">void</span> flush();
<a name="l00051"></a>00051
<a name="l00052"></a>00052 <span class="keyword">private</span>:
<a name="l00053"></a>00053 QPixmap d_pixBuffer;
<a name="l00054"></a>00054 QRect d_rect;
<a name="l00055"></a>00055
<a name="l00056"></a>00056 QPaintDevice *d_device; <span class="comment">// use QGuardedPtr</span>
<a name="l00057"></a>00057 QPainter *d_painter; <span class="comment">// use QGuardedPtr</span>
<a name="l00058"></a>00058 QPainter *d_devicePainter; <span class="comment">// use QGuardedPtr</span>
<a name="l00059"></a>00059
<a name="l00060"></a>00060 <span class="keyword">static</span> <span class="keywordtype">bool</span> d_enabled;
<a name="l00061"></a>00061 };
<a name="l00062"></a>00062
<a name="l00063"></a>00063 <span class="preprocessor">#endif // QT_VERSION < 0x040000</span>
<a name="l00064"></a>00064 <span class="preprocessor"></span>
<a name="l00065"></a>00065 <span class="preprocessor">#endif</span>
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