/usr/include/qwt/qwt_plot_seriesitem.h is in libqwt-dev 6.0.0-1ubuntu1.
This file is owned by root:root, with mode 0o644.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 | /* -*- 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_SERIES_ITEM_H
#define QWT_PLOT_SERIES_ITEM_H
#include "qwt_global.h"
#include "qwt_plot_item.h"
#include "qwt_scale_div.h"
#include "qwt_series_data.h"
/*!
\brief Base class for plot items representing a series of samples
*/
class QWT_EXPORT QwtPlotAbstractSeriesItem: public QwtPlotItem
{
public:
explicit QwtPlotAbstractSeriesItem( const QString &title = QString::null );
explicit QwtPlotAbstractSeriesItem( const QwtText &title );
virtual ~QwtPlotAbstractSeriesItem();
void setOrientation( Qt::Orientation );
Qt::Orientation orientation() const;
virtual void draw( QPainter *p,
const QwtScaleMap &xMap, const QwtScaleMap &yMap,
const QRectF & ) const;
/*!
Draw a subset of the samples
\param painter Painter
\param xMap Maps x-values into pixel coordinates.
\param yMap Maps y-values into pixel coordinates.
\param canvasRect Contents rect of the canvas
\param from Index of the first point to be painted
\param to Index of the last point to be painted. If to < 0 the
curve will be painted to its last point.
*/
virtual void drawSeries( QPainter *painter,
const QwtScaleMap &xMap, const QwtScaleMap &yMap,
const QRectF &canvasRect, int from, int to ) const = 0;
private:
class PrivateData;
PrivateData *d_data;
};
/*!
\brief Class template for plot items representing a series of samples
*/
template <typename T>
class QwtPlotSeriesItem: public QwtPlotAbstractSeriesItem
{
public:
explicit QwtPlotSeriesItem<T>( const QString &title = QString::null );
explicit QwtPlotSeriesItem<T>( const QwtText &title );
virtual ~QwtPlotSeriesItem<T>();
void setData( QwtSeriesData<T> * );
QwtSeriesData<T> *data();
const QwtSeriesData<T> *data() const;
size_t dataSize() const;
T sample( int index ) const;
virtual QRectF boundingRect() const;
virtual void updateScaleDiv( const QwtScaleDiv &,
const QwtScaleDiv & );
protected:
//! Series
QwtSeriesData<T> *d_series;
};
/*!
Constructor
\param title Title of the series item
*/
template <typename T>
QwtPlotSeriesItem<T>::QwtPlotSeriesItem( const QString &title ):
QwtPlotAbstractSeriesItem( QwtText( title ) ),
d_series( NULL )
{
}
/*!
Constructor
\param title Title of the series item
*/
template <typename T>
QwtPlotSeriesItem<T>::QwtPlotSeriesItem( const QwtText &title ):
QwtPlotAbstractSeriesItem( title ),
d_series( NULL )
{
}
//! Destructor
template <typename T>
QwtPlotSeriesItem<T>::~QwtPlotSeriesItem()
{
delete d_series;
}
//! \return the the curve data
template <typename T>
inline QwtSeriesData<T> *QwtPlotSeriesItem<T>::data()
{
return d_series;
}
//! \return the the curve data
template <typename T>
inline const QwtSeriesData<T> *QwtPlotSeriesItem<T>::data() const
{
return d_series;
}
/*!
\param index Index
\return Sample at position index
*/
template <typename T>
inline T QwtPlotSeriesItem<T>::sample( int index ) const
{
return d_series ? d_series->sample( index ) : T();
}
/*!
Assign a series of samples
\param data Data
\warning The item takes ownership of the data object, deleting
it when its not used anymore.
*/
template <typename T>
void QwtPlotSeriesItem<T>::setData( QwtSeriesData<T> *data )
{
if ( d_series != data )
{
delete d_series;
d_series = data;
itemChanged();
}
}
/*!
Return the size of the data arrays
\sa setData()
*/
template <typename T>
size_t QwtPlotSeriesItem<T>::dataSize() const
{
if ( d_series == NULL )
return 0;
return d_series->size();
}
/*!
\return Bounding rectangle of the data.
If there is no bounding rect, like for empty data the rectangle is invalid.
\sa QwtSeriesData<T>::boundingRect(), QRectF::isValid()
*/
template <typename T>
QRectF QwtPlotSeriesItem<T>::boundingRect() const
{
if ( d_series == NULL )
return QRectF( 1.0, 1.0, -2.0, -2.0 ); // invalid
return d_series->boundingRect();
}
/*!
Update the rect of interest according to the current scale ranges
\param xScaleDiv Scale division of the x-axis
\param yScaleDiv Scale division of the y-axis
\sa QwtSeriesData<T>::setRectOfInterest()
*/
template <typename T>
void QwtPlotSeriesItem<T>::updateScaleDiv(
const QwtScaleDiv &xScaleDiv, const QwtScaleDiv &yScaleDiv )
{
const QRectF rect = QRectF(
xScaleDiv.lowerBound(), yScaleDiv.lowerBound(),
xScaleDiv.range(), yScaleDiv.range() );
d_series->setRectOfInterest( rect );
}
#endif
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