qwt_plot_marker.h

/* -*- 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
 *****************************************************************************/

// vim: expandtab

#ifndef QWT_PLOT_MARKER_H
#define QWT_PLOT_MARKER_H

#include <qpen.h>
#include <qfont.h>
#include <qstring.h>
#include <qbrush.h>
#include "qwt_global.h"
#include "qwt_plot_item.h"

class QRect;
class QwtText;
class QwtSymbol;

class QWT_EXPORT QwtPlotMarker: public QwtPlotItem
{
public:

    enum LineStyle 
    {
        NoLine, 
        HLine, 
        VLine, 
        Cross
    };
   
    explicit QwtPlotMarker();
    virtual ~QwtPlotMarker();

    virtual int rtti() const;

    double xValue() const;
    double yValue() const;
    QwtDoublePoint value() const;

    void setXValue(double);
    void setYValue(double);
    void setValue(double, double);
    void setValue(const QwtDoublePoint &);

    void setLineStyle(LineStyle st);
    LineStyle lineStyle() const;

    void setLinePen(const QPen &p);
    const QPen &linePen() const;

    void setSymbol(const QwtSymbol &s);
    const QwtSymbol &symbol() const;

    void setLabel(const QwtText&);
    QwtText label() const;

#if QT_VERSION < 0x040000
    void setLabelAlignment(int align);
    int labelAlignment() const;
#else
    void setLabelAlignment(Qt::Alignment);
    Qt::Alignment labelAlignment() const;
#endif

    void setLabelOrientation(Qt::Orientation);
    Qt::Orientation labelOrientation() const;

    void setSpacing(int);
    int spacing() const;

    virtual void draw(QPainter *p, 
        const QwtScaleMap &xMap, const QwtScaleMap &yMap,
        const QRect &) const;
    
    virtual QwtDoubleRect boundingRect() const;

protected:
    void drawAt(QPainter *,const QRect &, const QPoint &) const;

private:
    void drawLabel(QPainter *, const QRect &, const QPoint &) const;

    class PrivateData;
    PrivateData *d_data;
};

#endif