qwt_plot_textlabel.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
*****************************************************************************/
#ifndef QWT_PLOT_TEXT_LABEL_H
#define QWT_PLOT_TEXT_LABEL_H 1
#include "qwt_global.h"
#include "qwt_plot_item.h"
#include "qwt_text.h"
class QWT_EXPORT QwtPlotTextLabel: public QwtPlotItem
{
public:
QwtPlotTextLabel();
virtual ~QwtPlotTextLabel();
virtual int rtti() const;
void setText( const QwtText & );
QwtText text() const;
void setMargin( int margin );
int margin() const;
virtual QRectF textRect( const QRectF &, const QSizeF & ) const;
protected:
virtual void draw( QPainter *,
const QwtScaleMap &, const QwtScaleMap &,
const QRectF &) const;
void invalidateCache();
private:
class PrivateData;
PrivateData *d_data;
};
#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
QwtText
A class representing a text.
Definition: qwt_text.h:51
QwtScaleMap
A scale map.
Definition: qwt_scale_map.h:30
QwtPlotTextLabel
A plot item, which displays a text label.
Definition: qwt_plot_textlabel.h:47
QwtPlotItem::rtti
virtual int rtti() const
Definition: qwt_plot_item.cpp:120