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
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
QwtAbstractSeriesStore
Bridge between QwtSeriesStore and QwtPlotSeriesItem.
Definition: qwt_series_store.h:24
QwtText
A class representing a text.
Definition: qwt_text.h:51
QwtScaleMap
A scale map.
Definition: qwt_scale_map.h:30
QwtAbstractSeriesStore::dataChanged
virtual void dataChanged()=0
dataChanged() indicates, that the series has been changed.
QwtPlotItem::boundingRect
virtual QRectF boundingRect() const
Definition: qwt_plot_item.cpp:537
QwtPlotSeriesItem
Base class for plot items representing a series of samples.
Definition: qwt_plot_seriesitem.h:22
QwtScaleDiv
A class representing a scale division.
Definition: qwt_scale_div.h:36
QwtPlotItem::updateScaleDiv
virtual void updateScaleDiv(const QwtScaleDiv &, const QwtScaleDiv &)
Update the item to changes of the axes scale division.
Definition: qwt_plot_item.cpp:636