plotjuggler: qwt_plot_renderer.h Source File

Go to the documentation of this file.
00001 /* -*- mode: C++ ; c-file-style: "stroustrup" -*- *****************************
00002  * Qwt Widget Library
00003  * Copyright (C) 1997   Josef Wilgen
00004  * Copyright (C) 2002   Uwe Rathmann
00005  *
00006  * This library is free software; you can redistribute it and/or
00007  * modify it under the terms of the Qwt License, Version 1.0
00008  *****************************************************************************/
00009 
00010 #ifndef QWT_PLOT_RENDERER_H
00011 #define QWT_PLOT_RENDERER_H
00012 
00013 #include "qwt_global.h"
00014 #include <qobject.h>
00015 #include <qsize.h>
00016 
00017 class QwtPlot;
00018 class QwtScaleMap;
00019 class QRectF;
00020 class QPainter;
00021 class QPaintDevice;
00022 
00023 #ifndef QT_NO_PRINTER
00024 class QPrinter;
00025 #endif
00026 
00027 #ifndef QWT_NO_SVG
00028 #ifdef QT_SVG_LIB
00029 #if QT_VERSION >= 0x040500
00030 class QSvgGenerator;
00031 #endif
00032 #endif
00033 #endif
00034 
00039 class QWT_EXPORT QwtPlotRenderer: public QObject
00040 {
00041     Q_OBJECT
00042 
00043 public:
00045     enum DiscardFlag
00046     {
00048         DiscardNone             = 0x00,
00049 
00051         DiscardBackground       = 0x01,
00052 
00054         DiscardTitle            = 0x02,
00055 
00057         DiscardLegend           = 0x04,
00058 
00060         DiscardCanvasBackground = 0x08,
00061 
00063         DiscardFooter           = 0x10,
00064 
00072         DiscardCanvasFrame           = 0x20
00073 
00074     };
00075 
00077     typedef QFlags<DiscardFlag> DiscardFlags;
00078 
00083     enum LayoutFlag
00084     {
00086         DefaultLayout   = 0x00,
00087 
00092         FrameWithScales = 0x01
00093     };
00094 
00096     typedef QFlags<LayoutFlag> LayoutFlags;
00097 
00098     explicit QwtPlotRenderer( QObject * = NULL );
00099     virtual ~QwtPlotRenderer();
00100 
00101     void setDiscardFlag( DiscardFlag flag, bool on = true );
00102     bool testDiscardFlag( DiscardFlag flag ) const;
00103 
00104     void setDiscardFlags( DiscardFlags flags );
00105     DiscardFlags discardFlags() const;
00106 
00107     void setLayoutFlag( LayoutFlag flag, bool on = true );
00108     bool testLayoutFlag( LayoutFlag flag ) const;
00109 
00110     void setLayoutFlags( LayoutFlags flags );
00111     LayoutFlags layoutFlags() const;
00112 
00113     void renderDocument( QwtPlot *, const QString &fileName,
00114         const QSizeF &sizeMM, int resolution = 85 );
00115 
00116     void renderDocument( QwtPlot *,
00117         const QString &fileName, const QString &format,
00118         const QSizeF &sizeMM, int resolution = 85 );
00119 
00120 #ifndef QWT_NO_SVG
00121 #ifdef QT_SVG_LIB
00122 #if QT_VERSION >= 0x040500
00123     void renderTo( QwtPlot *, QSvgGenerator & ) const;
00124 #endif
00125 #endif
00126 #endif
00127 
00128 #ifndef QT_NO_PRINTER
00129     void renderTo( QwtPlot *, QPrinter & ) const;
00130 #endif
00131 
00132     void renderTo( QwtPlot *, QPaintDevice &p ) const;
00133 
00134     virtual void render( QwtPlot *,
00135         QPainter *, const QRectF &rect ) const;
00136 
00137     virtual void renderTitle( const QwtPlot *,
00138         QPainter *, const QRectF & ) const;
00139 
00140     virtual void renderFooter( const QwtPlot *,
00141         QPainter *, const QRectF & ) const;
00142 
00143     virtual void renderScale( const QwtPlot *, QPainter *,
00144         int axisId, int startDist, int endDist,
00145         int baseDist, const QRectF & ) const;
00146 
00147     virtual void renderCanvas( const QwtPlot *,
00148         QPainter *, const QRectF &canvasRect,
00149         const QwtScaleMap* maps ) const;
00150 
00151     virtual void renderLegend( 
00152         const QwtPlot *, QPainter *, const QRectF & ) const;
00153 
00154     bool exportTo( QwtPlot *, const QString &documentName,
00155         const QSizeF &sizeMM = QSizeF( 300, 200 ), int resolution = 85 );
00156 
00157 private:
00158     void buildCanvasMaps( const QwtPlot *,
00159         const QRectF &, QwtScaleMap maps[] ) const;
00160 
00161     bool updateCanvasMargins( QwtPlot *,
00162         const QRectF &, const QwtScaleMap maps[] ) const;
00163 
00164 private:
00165     class PrivateData;
00166     PrivateData *d_data;
00167 };
00168 
00169 Q_DECLARE_OPERATORS_FOR_FLAGS( QwtPlotRenderer::DiscardFlags )
00170 Q_DECLARE_OPERATORS_FOR_FLAGS( QwtPlotRenderer::LayoutFlags )
00171 
00172 #endif