qwt_plot_seriesitem.cpp

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/******************************************************************************
 * 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
 *****************************************************************************/
 
#include "qwt_plot_seriesitem.h"
#include "qwt_scale_div.h"
#include "qwt_text.h"
 
class QwtPlotSeriesItem::PrivateData
{
  public:
    PrivateData()
        : orientation( Qt::Vertical )
    {
    }
 
    Qt::Orientation orientation;
};
 
QwtPlotSeriesItem::QwtPlotSeriesItem( const QwtText& title )
    : QwtPlotItem( title )
{
    m_data = new PrivateData();
    setItemInterest( QwtPlotItem::ScaleInterest, true );
}
 
QwtPlotSeriesItem::QwtPlotSeriesItem( const QString& title )
    : QwtPlotItem( QwtText( title ) )
{
    m_data = new PrivateData();
    setItemInterest( QwtPlotItem::ScaleInterest, true );
}
 
QwtPlotSeriesItem::~QwtPlotSeriesItem()
{
    delete m_data;
}
 
void QwtPlotSeriesItem::setOrientation( Qt::Orientation orientation )
{
    if ( m_data->orientation != orientation )
    {
        m_data->orientation = orientation;
 
        legendChanged();
        itemChanged();
    }
}
 
Qt::Orientation QwtPlotSeriesItem::orientation() const
{
    return m_data->orientation;
}
 
void QwtPlotSeriesItem::draw( QPainter* painter,
    const QwtScaleMap& xMap, const QwtScaleMap& yMap,
    const QRectF& canvasRect ) const
{
    drawSeries( painter, xMap, yMap, canvasRect, 0, -1 );
}
 
QRectF QwtPlotSeriesItem::boundingRect() const
{
    return dataRect();
}
 
void QwtPlotSeriesItem::updateScaleDiv(
    const QwtScaleDiv& xScaleDiv, const QwtScaleDiv& yScaleDiv )
{
    const QRectF rect = QRectF(
        xScaleDiv.lowerBound(), yScaleDiv.lowerBound(),
        xScaleDiv.range(), yScaleDiv.range() );
 
    setRectOfInterest( rect );
}
 
void QwtPlotSeriesItem::dataChanged()
{
    itemChanged();
}