QGIS/external/qwt-6.3.0/qwt_plot_grid.h
Juergen E. Fischer 33fc476d89 * replace external qwtpolar with qwt 6.3
* require qwt >=6.2 (and fallback to internal 6.3 if system's qwt doesn't suffice)
* debian doesn't have qwt for Qt6 and won't have it for trixie
2025-07-23 07:11:51 +10:00

91 lines
2.4 KiB
C++

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