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/* -*- mode: C++ ; c-file-style: "stroustrup" -*- *****************************
* Qwt Widget Library
* Copyright (C) 1997 Josef Wilgen
* Copyright (C) 2002 Uwe Rathmann
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the Qwt License, Version 1.0
*****************************************************************************/
#ifndef QWT_GRID_H
#define QWT_GRID_H
#include <qpen.h>
#include "qwt_global.h"
#include "qwt_dimap.h"
#include "qwt_scldiv.h"
class QPainter;
/*!
\brief A class which draws a coordinate grid
The QwtGrid class can be used to draw a coordinate grid.
A coordinate grid consists of major and minor vertical
and horizontal gridlines. The locations of the gridlines
are determined by the X and Y scale divisions which can
be assigned with QwtGrid::setXDiv and QwtGrid::setYDiv()
The draw() member draws the grid within a bounding
rectangle.
*/
class QWT_EXPORT QwtGrid
{
public:
QwtGrid();
virtual ~QwtGrid();
virtual void draw(QPainter *p, const QRect &r,
const QwtDiMap &mx, const QwtDiMap &my) const;
void enableX(bool tf);
bool xEnabled() const;
void enableY(bool tf);
bool yEnabled() const;
void enableXMin(bool tf);
bool xMinEnabled() const;
void enableYMin(bool tf);
bool yMinEnabled() const;
void setXDiv(const QwtScaleDiv &sx);
const QwtScaleDiv &xScaleDiv() const;
void setYDiv(const QwtScaleDiv &sy);
const QwtScaleDiv &yScaleDiv() const;
void setPen(const QPen &p);
void setMajPen(const QPen &p);
const QPen& majPen() const;
void setMinPen(const QPen &p);
const QPen& minPen() const;
protected:
virtual void gridChanged();
private:
bool d_xEnabled;
bool d_yEnabled;
bool d_xMinEnabled;
bool d_yMinEnabled;
QwtScaleDiv d_sdx;
QwtScaleDiv d_sdy;
QPen d_majPen;
QPen d_minPen;
};
#endif
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