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<h1>qwt_plot_canvas.h</h1><pre class="fragment"><div>00001 <span class="comment">/* -*- mode: C++ ; c-file-style: "stroustrup" -*- *****************************</span>
00002 <span class="comment"> * Qwt Widget Library</span>
00003 <span class="comment"> * Copyright (C) 1997 Josef Wilgen</span>
00004 <span class="comment"> * Copyright (C) 2002 Uwe Rathmann</span>
00005 <span class="comment"> * </span>
00006 <span class="comment"> * This library is free software; you can redistribute it and/or</span>
00007 <span class="comment"> * modify it under the terms of the Qwt License, Version 1.0</span>
00008 <span class="comment"> *****************************************************************************/</span>
00009
00010 <span class="comment">// vim: expandtab</span>
00011
00012 <span class="preprocessor">#ifndef QWT_PLOT_CANVAS_H</span>
00013 <span class="preprocessor"></span><span class="preprocessor">#define QWT_PLOT_CANVAS_H</span>
00014 <span class="preprocessor"></span>
00015 <span class="preprocessor">#include <qframe.h></span>
00016 <span class="preprocessor">#include <qpen.h></span>
00017 <span class="preprocessor">#include "qwt_global.h"</span>
00018 <span class="preprocessor">#include "qwt.h"</span>
00019
00020 <span class="keyword">class </span><a class="code" href="class_qwt_plot.html">QwtPlot</a>;
00021 <span class="keyword">class </span>QPixmap;
00022
<a name="l00029"></a><a class="code" href="class_qwt_plot_canvas.html">00029</a> <span class="keyword">class </span>QWT_EXPORT QwtPlotCanvas : <span class="keyword">public</span> QFrame
00030 {
00031 Q_OBJECT
00032 <span class="keyword">friend</span> <span class="keyword">class </span><a class="code" href="class_qwt_plot.html">QwtPlot</a>;
00033
00034 <span class="keyword">public</span>:
<a name="l00051"></a><a class="code" href="class_qwt_plot_canvas.html#w3">00051</a> <span class="keyword">enum</span> FocusIndicator
00052 {
00053 NoFocusIndicator,
00054 CanvasFocusIndicator,
00055 ItemFocusIndicator
00056 };
00057
00058 <span class="keywordtype">void</span> setFocusIndicator(FocusIndicator);
00059 FocusIndicator focusIndicator() const;
00060
00061 <span class="keywordtype">void</span> setCacheMode(<span class="keywordtype">bool</span> on);
00062 <span class="keywordtype">bool</span> cacheMode() const;
00063 const QPixmap *cache() const;
00064 <span class="keywordtype">void</span> invalidateCache();
00065
00066 protected:
00067 QwtPlotCanvas(<a class="code" href="class_qwt_plot.html">QwtPlot</a> *);
00068 virtual ~QwtPlotCanvas();
00069
00070 QPixmap *cache();
00071
00072 virtual <span class="keywordtype">void</span> frameChanged();
00073 virtual <span class="keywordtype">void</span> drawContents(QPainter *);
00074 virtual <span class="keywordtype">void</span> drawFocusIndicator(QPainter *, const QRect &);
00075
00076 <span class="keywordtype">void</span> drawCanvas(QPainter *painter = NULL);
00077
00078 private:
00079 FocusIndicator d_focusIndicator;
00080 <span class="keywordtype">bool</span> d_cacheMode;
00081 QPixmap *d_cache;
00082
00083 #ifndef QWT_NO_COMPAT
00084 public:
00085 <span class="keywordtype">void</span> enableOutline(<span class="keywordtype">bool</span> tf);
00086 <span class="keywordtype">bool</span> outlineEnabled() const;
00087
00088 <span class="keywordtype">void</span> setOutlinePen(const QPen &p);
00089 const QPen& outlinePen() const;
00090
00091 <span class="keywordtype">void</span> setOutlineStyle(Qwt::Shape os);
00092 Qwt::Shape outlineStyle() const;
00093
00094 signals:
00103 <span class="keywordtype">void</span> mousePressed(const QMouseEvent &e);
00113 <span class="keywordtype">void</span> mouseReleased(const QMouseEvent &e);
00122 <span class="keywordtype">void</span> mouseMoved(const QMouseEvent &e);
00123
00124 protected:
00125 virtual <span class="keywordtype">void</span> mousePressEvent(QMouseEvent *);
00126 virtual <span class="keywordtype">void</span> mouseReleaseEvent(QMouseEvent *);
00127 virtual <span class="keywordtype">void</span> mouseMoveEvent(QMouseEvent *);
00128
00129 private:
00130 <span class="keywordtype">bool</span> d_outlineEnabled;
00131 <span class="keywordtype">bool</span> d_outlineActive;
00132 <span class="keywordtype">bool</span> d_mousePressed;
00133
00134 <span class="keywordtype">void</span> drawOutline(QPainter &p);
00135
00136 Qwt::Shape d_outline;
00137 QPen d_pen;
00138 QPoint d_entryPoint;
00139 QPoint d_lastPoint;
00140 #else
00141 private:
00142 <span class="comment">// needed because of mocs #ifdef ignorance</span>
00143 <span class="keywordtype">void</span> mousePressed(const QMouseEvent &);
00144 <span class="keywordtype">void</span> mouseReleased(const QMouseEvent &);
00145 <span class="keywordtype">void</span> mouseMoved(const QMouseEvent &);
00146 #endif <span class="comment">// !QWT_NO_COMPAT</span>
00147
00148 };
00149
00150 #endif
00151
00152 <span class="comment">// Local Variables:</span>
00153 <span class="comment">// mode: C++</span>
00154 <span class="comment">// c-file-style: "stroustrup"</span>
00155 <span class="comment">// indent-tabs-mode: nil</span>
00156 <span class="comment">// End:</span>
</div></pre><hr size="1"><address style="align: right;"><small>Generated on Tue Nov 16 21:12:20 2004 for Qwt User's Guide by
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<img src="doxygen.png" alt="doxygen" align="middle" border=0 ></a> 1.3.8 </small></address>
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