Qwt User's Guide 6.1.2

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qwt_plot_textlabel.h
1 /* -*- mode: C++ ; c-file-style: "stroustrup" -*- *****************************
2 * Qwt Widget Library
3 * Copyright (C) 1997 Josef Wilgen
4 * Copyright (C) 2002 Uwe Rathmann
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the Qwt License, Version 1.0
8 *****************************************************************************/
9
10 #ifndef QWT_PLOT_TEXT_LABEL_H
11 #define QWT_PLOT_TEXT_LABEL_H 1
12
13 #include "qwt_global.h"
14 #include "qwt_plot_item.h"
15 #include "qwt_text.h"
16
47 class QWT_EXPORT QwtPlotTextLabel: public QwtPlotItem
48 {
49 public:
50 QwtPlotTextLabel();
51 virtual ~QwtPlotTextLabel();
52
53 virtual int rtti() const;
54
55 void setText( const QwtText & );
56 QwtText text() const;
57
58 void setMargin( int margin );
59 int margin() const;
60
61 virtual QRectF textRect( const QRectF &, const QSizeF & ) const;
62
63 protected:
64 virtual void draw( QPainter *,
65 const QwtScaleMap &, const QwtScaleMap &,
66 const QRectF &) const;
67
68 void invalidateCache();
69
70 private:
71 class PrivateData;
72 PrivateData *d_data;
73 };
74
75 #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
QwtPlotItem::rtti
virtual int rtti() const
Definition: qwt_plot_item.cpp:120
QwtPlotTextLabel
A plot item, which displays a text label.
Definition: qwt_plot_textlabel.h:47