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122 lines
3.1 KiB
122 lines
3.1 KiB
/* -*- 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_LAYOUT_H |
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#define QWT_PLOT_LAYOUT_H |
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#include "qwt_global.h" |
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#include "qwt_plot.h" |
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/*! |
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\brief Layout engine for QwtPlot. |
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It is used by the QwtPlot widget to organize its internal widgets |
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or by QwtPlot::print() to render its content to a QPaintDevice like |
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a QPrinter, QPixmap/QImage or QSvgRenderer. |
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\sa QwtPlot::setPlotLayout() |
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*/ |
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class QWT_EXPORT QwtPlotLayout |
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{ |
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public: |
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/*! |
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Options to configure the plot layout engine |
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\sa activate(), QwtPlotRenderer |
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*/ |
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enum Option |
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{ |
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//! Unused |
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AlignScales = 0x01, |
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/*! |
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Ignore the dimension of the scrollbars. There are no |
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scrollbars, when the plot is not rendered to widgets. |
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*/ |
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IgnoreScrollbars = 0x02, |
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//! Ignore all frames. |
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IgnoreFrames = 0x04, |
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//! Ignore the legend. |
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IgnoreLegend = 0x08, |
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//! Ignore the title. |
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IgnoreTitle = 0x10, |
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//! Ignore the footer. |
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IgnoreFooter = 0x20 |
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}; |
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//! Layout options |
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typedef QFlags<Option> Options; |
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explicit QwtPlotLayout(); |
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virtual ~QwtPlotLayout(); |
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void setCanvasMargin( int margin, int axis = -1 ); |
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int canvasMargin( int axis ) const; |
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void setAlignCanvasToScales( bool ); |
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void setAlignCanvasToScale( int axisId, bool ); |
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bool alignCanvasToScale( int axisId ) const; |
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void setSpacing( int ); |
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int spacing() const; |
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void setLegendPosition( QwtPlot::LegendPosition pos, double ratio ); |
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void setLegendPosition( QwtPlot::LegendPosition pos ); |
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QwtPlot::LegendPosition legendPosition() const; |
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void setLegendRatio( double ratio ); |
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double legendRatio() const; |
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virtual QSize minimumSizeHint( const QwtPlot * ) const; |
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virtual void activate( const QwtPlot *, |
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const QRectF &rect, Options options = 0x00 ); |
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virtual void invalidate(); |
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QRectF titleRect() const; |
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QRectF footerRect() const; |
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QRectF legendRect() const; |
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QRectF scaleRect( int axis ) const; |
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QRectF canvasRect() const; |
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class LayoutData; |
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protected: |
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void setTitleRect( const QRectF & ); |
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void setFooterRect( const QRectF & ); |
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void setLegendRect( const QRectF & ); |
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void setScaleRect( int axis, const QRectF & ); |
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void setCanvasRect( const QRectF & ); |
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QRectF layoutLegend( Options options, const QRectF & ) const; |
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QRectF alignLegend( const QRectF &canvasRect, |
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const QRectF &legendRect ) const; |
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void expandLineBreaks( Options options, const QRectF &rect, |
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int &dimTitle, int &dimFooter, int dimAxes[QwtPlot::axisCnt] ) const; |
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void alignScales( Options options, QRectF &canvasRect, |
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QRectF scaleRect[QwtPlot::axisCnt] ) 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( QwtPlotLayout::Options ) |
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#endif
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