/usr/include/qwt/qwt_symbol.h is in libqwt-dev 6.0.0-1.2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* 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_SYMBOL_H
#define QWT_SYMBOL_H
#include "qwt_global.h"
#include <QPolygonF>
class QPainter;
class QRect;
class QSize;
class QBrush;
class QPen;
class QColor;
class QPointF;
//! A class for drawing symbols
class QWT_EXPORT QwtSymbol
{
public:
/*!
Symbol Style
\sa setStyle(), style()
*/
enum Style
{
//! No Style. The symbol cannot be drawn.
NoSymbol = -1,
//! Ellipse or circle
Ellipse,
//! Rectangle
Rect,
//! Diamond
Diamond,
//! Triangle pointing upwards
Triangle,
//! Triangle pointing downwards
DTriangle,
//! Triangle pointing upwards
UTriangle,
//! Triangle pointing left
LTriangle,
//! Triangle pointing right
RTriangle,
//! Cross (+)
Cross,
//! Diagonal cross (X)
XCross,
//! Horizontal line
HLine,
//! Vertical line
VLine,
//! X combined with +
Star1,
//! Six-pointed star
Star2,
//! Hexagon
Hexagon,
/*!
Styles >= QwtSymbol::UserSymbol are reserved for derived
classes of QwtSymbol that overload drawSymbols() with
additional application specific symbol types.
*/
UserStyle = 1000
};
public:
QwtSymbol( Style = NoSymbol );
QwtSymbol( Style, const QBrush &, const QPen &, const QSize & );
QwtSymbol( const QwtSymbol & );
virtual ~QwtSymbol();
QwtSymbol &operator=( const QwtSymbol & );
bool operator==( const QwtSymbol & ) const;
bool operator!=( const QwtSymbol & ) const;
void setSize( const QSize & );
void setSize( int width, int height = -1 );
const QSize& size() const;
virtual void setColor( const QColor & );
void setBrush( const QBrush& b );
const QBrush& brush() const;
void setPen( const QPen & );
const QPen& pen() const;
void setStyle( Style );
Style style() const;
void drawSymbol( QPainter *, const QPointF & ) const;
void drawSymbols( QPainter *, const QPolygonF & ) const;
virtual QSize boundingSize() const;
protected:
virtual void drawSymbols( QPainter *,
const QPointF *, int numPoints ) const;
private:
class PrivateData;
PrivateData *d_data;
};
/*!
\brief Draw the symbol at a specified position
\param painter Painter
\param pos Position of the symbol in screen coordinates
*/
inline void QwtSymbol::drawSymbol(
QPainter *painter, const QPointF &pos ) const
{
drawSymbols( painter, &pos, 1 );
}
/*!
\brief Draw symbols at the specified points
\param painter Painter
\param points Positions of the symbols in screen coordinates
*/
inline void QwtSymbol::drawSymbols(
QPainter *painter, const QPolygonF &points ) const
{
drawSymbols( painter, points.data(), points.size() );
}
#endif
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