Qwt User's Guide 6.1.2

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qwt_plot_grid.h
1 /* -*- mode: C++ ; c-file-style: "stroustrup" -*- *****************************
2 * Qwt Widget Library
3 * Copyright (C) 1997 Josef Wilgen
4 * Copyright (C) 2002 Uwe Rathmann
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the Qwt License, Version 1.0
8 *****************************************************************************/
9
10 #ifndef QWT_PLOT_GRID_H
11 #define QWT_PLOT_GRID_H
12
13 #include "qwt_global.h"
14 #include "qwt_plot_item.h"
15 #include "qwt_scale_div.h"
16
17 class QPainter;
18 class QPen;
19 class QwtScaleMap;
20 class QwtScaleDiv;
21
34 class QWT_EXPORT QwtPlotGrid: public QwtPlotItem
35 {
36 public:
37 explicit QwtPlotGrid();
38 virtual ~QwtPlotGrid();
39
40 virtual int rtti() const;
41
42 void enableX( bool tf );
43 bool xEnabled() const;
44
45 void enableY( bool tf );
46 bool yEnabled() const;
47
48 void enableXMin( bool tf );
49 bool xMinEnabled() const;
50
51 void enableYMin( bool tf );
52 bool yMinEnabled() const;
53
54 void setXDiv( const QwtScaleDiv &sx );
55 const QwtScaleDiv &xScaleDiv() const;
56
57 void setYDiv( const QwtScaleDiv &sy );
58 const QwtScaleDiv &yScaleDiv() const;
59
60 void setPen( const QColor &, qreal width = 0.0, Qt::PenStyle = Qt::SolidLine );
61 void setPen( const QPen & );
62
63 void setMajorPen( const QColor &, qreal width = 0.0, Qt::PenStyle = Qt::SolidLine );
64 void setMajorPen( const QPen & );
65 const QPen& majorPen() const;
66
67 void setMinorPen( const QColor &, qreal width = 0.0, Qt::PenStyle = Qt::SolidLine );
68 void setMinorPen( const QPen &p );
69 const QPen& minorPen() const;
70
71 virtual void draw( QPainter *p,
72 const QwtScaleMap &xMap, const QwtScaleMap &yMap,
73 const QRectF &rect ) const;
74
75 virtual void updateScaleDiv(
76 const QwtScaleDiv &xMap, const QwtScaleDiv &yMap );
77
78 private:
79 void drawLines( QPainter *painter, const QRectF &,
80 Qt::Orientation orientation, const QwtScaleMap &,
81 const QList<double> & ) const;
82
83 class PrivateData;
84 PrivateData *d_data;
85 };
86
87 #endif
QwtPlotItem::draw
virtual void draw(QPainter *painter, const QwtScaleMap &xMap, const QwtScaleMap &yMap, const QRectF &canvasRect) const =0
Draw the item.
QwtPlotItem
Base class for items on the plot canvas.
Definition: qwt_plot_item.h:64
QwtScaleMap
A scale map.
Definition: qwt_scale_map.h:30
QwtPlotItem::rtti
virtual int rtti() const
Definition: qwt_plot_item.cpp:120
QwtScaleDiv
A class representing a scale division.
Definition: qwt_scale_div.h:36
QwtPlotGrid
A class which draws a coordinate grid.
Definition: qwt_plot_grid.h:34
QwtPlotItem::updateScaleDiv
virtual void updateScaleDiv(const QwtScaleDiv &, const QwtScaleDiv &)
Update the item to changes of the axes scale division.
Definition: qwt_plot_item.cpp:636