| 1 | /* -*- mode: C++ ; c-file-style: "stroustrup" -*- *****************************
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| 2 | * Qwt Widget Library
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| 3 | * Copyright (C) 1997 Josef Wilgen
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| 4 | * Copyright (C) 2002 Uwe Rathmann
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| 5 | *
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| 6 | * This library is free software; you can redistribute it and/or
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| 7 | * modify it under the terms of the Qwt License, Version 1.0
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| 8 | *****************************************************************************/
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| 9 |
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| 10 | #ifndef QWT_PLOT_GRID_H
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| 11 | #define QWT_PLOT_GRID_H
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| 12 |
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| 13 | #include "qwt_global.h"
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| 14 | #include "qwt_plot_item.h"
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| 15 | #include "qwt_scale_div.h"
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| 16 |
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| 17 | class QPainter;
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| 18 | class QPen;
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| 19 | class QwtScaleMap;
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| 20 | class QwtScaleDiv;
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| 21 |
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| 22 | /*!
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| 23 | \brief A class which draws a coordinate grid
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| 24 |
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| 25 | The QwtPlotGrid class can be used to draw a coordinate grid.
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| 26 | A coordinate grid consists of major and minor vertical
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| 27 | and horizontal gridlines. The locations of the gridlines
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| 28 | are determined by the X and Y scale divisions which can
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| 29 | be assigned with setXDiv() and setYDiv().
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| 30 | The draw() member draws the grid within a bounding
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| 31 | rectangle.
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| 32 | */
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| 33 |
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| 34 | class QWT_EXPORT QwtPlotGrid: public QwtPlotItem
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| 35 | {
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| 36 | public:
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| 37 | explicit QwtPlotGrid();
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| 38 | virtual ~QwtPlotGrid();
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| 39 |
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| 40 | virtual int rtti() const;
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| 41 |
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| 42 | void enableX( bool tf );
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| 43 | bool xEnabled() const;
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| 44 |
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| 45 | void enableY( bool tf );
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| 46 | bool yEnabled() const;
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| 47 |
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| 48 | void enableXMin( bool tf );
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| 49 | bool xMinEnabled() const;
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| 50 |
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| 51 | void enableYMin( bool tf );
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| 52 | bool yMinEnabled() const;
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| 53 |
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| 54 | void setXDiv( const QwtScaleDiv &sx );
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| 55 | const QwtScaleDiv &xScaleDiv() const;
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| 56 |
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| 57 | void setYDiv( const QwtScaleDiv &sy );
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| 58 | const QwtScaleDiv &yScaleDiv() const;
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| 59 |
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| 60 | void setPen( const QPen &p );
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| 61 |
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| 62 | void setMajPen( const QPen &p );
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| 63 | const QPen& majPen() const;
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| 64 |
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| 65 | void setMinPen( const QPen &p );
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| 66 | const QPen& minPen() const;
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| 67 |
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| 68 | virtual void draw( QPainter *p,
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| 69 | const QwtScaleMap &xMap, const QwtScaleMap &yMap,
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| 70 | const QRectF &rect ) const;
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| 71 |
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| 72 | virtual void updateScaleDiv(
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| 73 | const QwtScaleDiv &xMap, const QwtScaleDiv &yMap );
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| 74 |
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| 75 | private:
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| 76 | void drawLines( QPainter *painter, const QRectF &,
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| 77 | Qt::Orientation orientation, const QwtScaleMap &,
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| 78 | const QList<double> & ) const;
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| 79 |
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| 80 | class PrivateData;
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| 81 | PrivateData *d_data;
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| 82 | };
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| 83 |
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| 84 | #endif
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