Qwt User's Guide  6.1.2
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qwt_plot_seriesitem.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_SERIES_ITEM_H
11 #define QWT_PLOT_SERIES_ITEM_H
12 
13 #include "qwt_global.h"
14 #include "qwt_plot_item.h"
15 #include "qwt_scale_div.h"
16 #include "qwt_series_data.h"
17 #include "qwt_series_store.h"
18 
22 class QWT_EXPORT QwtPlotSeriesItem: public QwtPlotItem,
23  public virtual QwtAbstractSeriesStore
24 {
25 public:
26  explicit QwtPlotSeriesItem( const QString &title = QString::null );
27  explicit QwtPlotSeriesItem( const QwtText &title );
28 
29  virtual ~QwtPlotSeriesItem();
30 
31  void setOrientation( Qt::Orientation );
32  Qt::Orientation orientation() const;
33 
34  virtual void draw( QPainter *p,
35  const QwtScaleMap &xMap, const QwtScaleMap &yMap,
36  const QRectF & ) const;
37 
49  virtual void drawSeries( QPainter *painter,
50  const QwtScaleMap &xMap, const QwtScaleMap &yMap,
51  const QRectF &canvasRect, int from, int to ) const = 0;
52 
53  virtual QRectF boundingRect() const;
54 
55  virtual void updateScaleDiv(
56  const QwtScaleDiv &, const QwtScaleDiv & );
57 
58 protected:
59  virtual void dataChanged();
60 
61 private:
62  class PrivateData;
63  PrivateData *d_data;
64 };
65 
66 #endif
virtual void draw(QPainter *painter, const QwtScaleMap &xMap, const QwtScaleMap &yMap, const QRectF &canvasRect) const =0
Draw the item.
Base class for items on the plot canvas.
Definition: qwt_plot_item.h:64
Bridge between QwtSeriesStore and QwtPlotSeriesItem.
Definition: qwt_series_store.h:24
A class representing a text.
Definition: qwt_text.h:51
A scale map.
Definition: qwt_scale_map.h:30
virtual void dataChanged()=0
dataChanged() indicates, that the series has been changed.
virtual QRectF boundingRect() const
Definition: qwt_plot_item.cpp:537
Base class for plot items representing a series of samples.
Definition: qwt_plot_seriesitem.h:22
A class representing a scale division.
Definition: qwt_scale_div.h:36
virtual void updateScaleDiv(const QwtScaleDiv &, const QwtScaleDiv &)
Update the item to changes of the axes scale division.
Definition: qwt_plot_item.cpp:636