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88 lines
2.4 KiB
C
88 lines
2.4 KiB
C
3 weeks ago
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/* -*- 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_GRID_H
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#define QWT_PLOT_GRID_H
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#include "qwt_global.h"
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#include "qwt_plot_item.h"
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#include "qwt_scale_div.h"
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class QPainter;
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class QPen;
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class QwtScaleMap;
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class QwtScaleDiv;
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/*!
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\brief A class which draws a coordinate grid
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The QwtPlotGrid class can be used to draw a coordinate grid.
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A coordinate grid consists of major and minor vertical
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and horizontal grid lines. The locations of the grid lines
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are determined by the X and Y scale divisions which can
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be assigned with setXDiv() and setYDiv().
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The draw() member draws the grid within a bounding
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rectangle.
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*/
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class QWT_EXPORT QwtPlotGrid: public QwtPlotItem
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{
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public:
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explicit QwtPlotGrid();
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virtual ~QwtPlotGrid();
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virtual int rtti() const;
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void enableX( bool );
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bool xEnabled() const;
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void enableY( bool );
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bool yEnabled() const;
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void enableXMin( bool );
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bool xMinEnabled() const;
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void enableYMin( bool );
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bool yMinEnabled() const;
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void setXDiv( const QwtScaleDiv & );
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const QwtScaleDiv &xScaleDiv() const;
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void setYDiv( const QwtScaleDiv & );
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const QwtScaleDiv &yScaleDiv() const;
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void setPen( const QColor &, qreal width = 0.0, Qt::PenStyle = Qt::SolidLine );
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void setPen( const QPen & );
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void setMajorPen( const QColor &, qreal width = 0.0, Qt::PenStyle = Qt::SolidLine );
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void setMajorPen( const QPen & );
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const QPen& majorPen() const;
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void setMinorPen( const QColor &, qreal width = 0.0, Qt::PenStyle = Qt::SolidLine );
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void setMinorPen( const QPen & );
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const QPen& minorPen() const;
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virtual void draw( QPainter *,
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const QwtScaleMap &xMap, const QwtScaleMap &yMap,
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const QRectF &canvasRect ) const;
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virtual void updateScaleDiv(
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const QwtScaleDiv &xScaleDiv, const QwtScaleDiv &yScaleDiv );
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private:
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void drawLines( QPainter *, const QRectF &,
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Qt::Orientation, const QwtScaleMap &,
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const QList<double> & ) const;
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class PrivateData;
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PrivateData *d_data;
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};
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#endif
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