171 lines
4.4 KiB
C++
171 lines
4.4 KiB
C++
/* -*- mode: C++ ; c-file-style: "stroustrup" -*- *****************************
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* Qwt Widget Library
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* Copyright (C) 1997 Josef Wilgen
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* Copyright (C) 2002 Uwe Rathmann
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the Qwt License, Version 1.0
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*****************************************************************************/
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#ifndef QWT_PLOT_RENDERER_H
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#define QWT_PLOT_RENDERER_H
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#include "qwt_global.h"
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#include <qobject.h>
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#include <qsize.h>
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class QwtPlot;
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class QwtScaleMap;
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class QRectF;
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class QPainter;
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class QPaintDevice;
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#ifndef QT_NO_PRINTER
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class QPrinter;
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#endif
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#ifndef QWT_NO_SVG
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#ifdef QT_SVG_LIB
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class QSvgGenerator;
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#endif
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#endif
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/*!
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\brief Renderer for exporting a plot to a document, a printer
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or anything else, that is supported by QPainter/QPaintDevice
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*/
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class QWT_EXPORT QwtPlotRenderer: public QObject
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{
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Q_OBJECT
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public:
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//! Disard flags
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enum DiscardFlag
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{
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//! Render all components of the plot
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DiscardNone = 0x00,
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//! Don't render the background of the plot
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DiscardBackground = 0x01,
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//! Don't render the title of the plot
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DiscardTitle = 0x02,
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//! Don't render the legend of the plot
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DiscardLegend = 0x04,
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//! Don't render the background of the canvas
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DiscardCanvasBackground = 0x08,
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//! Don't render the footer of the plot
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DiscardFooter = 0x10,
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/*!
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Don't render the frame of the canvas
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\note This flag has no effect when using
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style sheets, where the frame is part
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of the background
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*/
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DiscardCanvasFrame = 0x20
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};
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//! Disard flags
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typedef QFlags<DiscardFlag> DiscardFlags;
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/*!
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\brief Layout flags
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\sa setLayoutFlag(), testLayoutFlag()
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*/
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enum LayoutFlag
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{
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//! Use the default layout as on screen
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DefaultLayout = 0x00,
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/*!
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Instead of the scales a box is painted around the plot canvas,
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where the scale ticks are aligned to.
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*/
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FrameWithScales = 0x01
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};
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//! Layout flags
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typedef QFlags<LayoutFlag> LayoutFlags;
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explicit QwtPlotRenderer( QObject * = NULL );
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virtual ~QwtPlotRenderer();
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void setDiscardFlag( DiscardFlag flag, bool on = true );
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bool testDiscardFlag( DiscardFlag flag ) const;
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void setDiscardFlags( DiscardFlags flags );
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DiscardFlags discardFlags() const;
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void setLayoutFlag( LayoutFlag flag, bool on = true );
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bool testLayoutFlag( LayoutFlag flag ) const;
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void setLayoutFlags( LayoutFlags flags );
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LayoutFlags layoutFlags() const;
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void renderDocument( QwtPlot *, const QString &fileName,
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const QSizeF &sizeMM, int resolution = 85 );
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void renderDocument( QwtPlot *,
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const QString &fileName, const QString &format,
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const QSizeF &sizeMM, int resolution = 85 );
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#ifndef QWT_NO_SVG
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#ifdef QT_SVG_LIB
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#if QT_VERSION >= 0x040500
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void renderTo( QwtPlot *, QSvgGenerator & ) const;
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#endif
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#endif
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#endif
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#ifndef QT_NO_PRINTER
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void renderTo( QwtPlot *, QPrinter & ) const;
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#endif
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void renderTo( QwtPlot *, QPaintDevice & ) const;
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virtual void render( QwtPlot *,
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QPainter *, const QRectF &plotRect ) const;
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virtual void renderTitle( const QwtPlot *,
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QPainter *, const QRectF &titleRect ) const;
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virtual void renderFooter( const QwtPlot *,
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QPainter *, const QRectF &footerRect ) const;
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virtual void renderScale( const QwtPlot *, QPainter *,
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int axisId, int startDist, int endDist,
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int baseDist, const QRectF &scaleRect ) const;
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virtual void renderCanvas( const QwtPlot *,
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QPainter *, const QRectF &canvasRect,
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const QwtScaleMap* maps ) const;
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virtual void renderLegend(
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const QwtPlot *, QPainter *, const QRectF &legendRect ) const;
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bool exportTo( QwtPlot *, const QString &documentName,
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const QSizeF &sizeMM = QSizeF( 300, 200 ), int resolution = 85 );
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private:
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void buildCanvasMaps( const QwtPlot *,
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const QRectF &, QwtScaleMap maps[] ) const;
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bool updateCanvasMargins( QwtPlot *,
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const QRectF &, const QwtScaleMap maps[] ) const;
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private:
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class PrivateData;
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PrivateData *d_data;
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};
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Q_DECLARE_OPERATORS_FOR_FLAGS( QwtPlotRenderer::DiscardFlags )
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Q_DECLARE_OPERATORS_FOR_FLAGS( QwtPlotRenderer::LayoutFlags )
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#endif
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