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/* -*- mode: C++ ; c-file-style: "stroustrup" -*- *****************************
* Qwt Widget Library
* Copyright (C) 1997 Josef Wilgen
* Copyright (C) 2002 Uwe Rathmann
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the Qwt License, Version 1.0
*****************************************************************************/
#ifndef QWT_PLOT_RENDERER_H
#define QWT_PLOT_RENDERER_H
#include "qwt_global.h"
#include <qobject.h>
class QwtPlot;
class QwtScaleMap;
class QSizeF;
class QRectF;
class QPainter;
class QPaintDevice;
#ifndef QT_NO_PRINTER
class QPrinter;
#endif
#ifndef QWT_NO_SVG
#ifdef QT_SVG_LIB
class QSvgGenerator;
#endif
#endif
/*!
\brief Renderer for exporting a plot to a document, a printer
or anything else, that is supported by QPainter/QPaintDevice
*/
class QWT_EXPORT QwtPlotRenderer: public QObject
{
Q_OBJECT
public:
//! Disard flags
enum DiscardFlag
{
//! Render all components of the plot
DiscardNone = 0x00,
//! Don't render the background of the plot
DiscardBackground = 0x01,
//! Don't render the title of the plot
DiscardTitle = 0x02,
//! Don't render the legend of the plot
DiscardLegend = 0x04,
//! Don't render the background of the canvas
DiscardCanvasBackground = 0x08
};
//! Disard flags
typedef QFlags<DiscardFlag> DiscardFlags;
/*!
\brief Layout flags
\sa setLayoutFlag(), testLayoutFlag()
*/
enum LayoutFlag
{
//! Use the default layout without margins and frames
DefaultLayout = 0x00,
//! Render all frames of the plot
KeepFrames = 0x01,
/*!
Instead of the scales a box is painted around the plot canvas,
where the scale ticks are aligned to.
*/
FrameWithScales = 0x02
};
//! Layout flags
typedef QFlags<LayoutFlag> LayoutFlags;
explicit QwtPlotRenderer( QObject * = NULL );
virtual ~QwtPlotRenderer();
void setDiscardFlag( DiscardFlag flag, bool on = true );
bool testDiscardFlag( DiscardFlag flag ) const;
void setDiscardFlags( DiscardFlags flags );
DiscardFlags discardFlags() const;
void setLayoutFlag( LayoutFlag flag, bool on = true );
bool testLayoutFlag( LayoutFlag flag ) const;
void setLayoutFlags( LayoutFlags flags );
LayoutFlags layoutFlags() const;
void renderDocument( QwtPlot *, const QString &fileName,
const QSizeF &sizeMM, int resolution = 85 );
void renderDocument( QwtPlot *,
const QString &fileName, const QString &format,
const QSizeF &sizeMM, int resolution = 85 );
#ifndef QWT_NO_SVG
#ifdef QT_SVG_LIB
#if QT_VERSION >= 0x040500
void renderTo( QwtPlot *, QSvgGenerator & ) const;
#endif
#endif
#endif
#ifndef QT_NO_PRINTER
void renderTo( QwtPlot *, QPrinter & ) const;
#endif
void renderTo( QwtPlot *, QPaintDevice &p ) const;
virtual void render( QwtPlot *,
QPainter *, const QRectF &rect ) const;
virtual void renderLegendItem( const QwtPlot *,
QPainter *, const QWidget *, const QRectF & ) const;
virtual void renderTitle( const QwtPlot *,
QPainter *, const QRectF & ) const;
virtual void renderScale( const QwtPlot *, QPainter *,
int axisId, int startDist, int endDist,
int baseDist, const QRectF & ) const;
virtual void renderCanvas( const QwtPlot *,
QPainter *, const QRectF &canvasRect,
const QwtScaleMap* maps ) const;
virtual void renderLegend(
const QwtPlot *, QPainter *, const QRectF & ) const;
protected:
void buildCanvasMaps( const QwtPlot *,
const QRectF &, QwtScaleMap maps[] ) const;
private:
class PrivateData;
PrivateData *d_data;
};
Q_DECLARE_OPERATORS_FOR_FLAGS( QwtPlotRenderer::DiscardFlags )
Q_DECLARE_OPERATORS_FOR_FLAGS( QwtPlotRenderer::LayoutFlags )
#endif
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