qwt_plot_seriesitem.cpp

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/* -*- 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
 *****************************************************************************/

#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 )
{
    d_data = new PrivateData();
    setItemInterest( QwtPlotItem::ScaleInterest, true );
}

QwtPlotSeriesItem::QwtPlotSeriesItem( const QString &title ):
    QwtPlotItem( QwtText( title ) )
{
    d_data = new PrivateData();
    setItemInterest( QwtPlotItem::ScaleInterest, true );
}

QwtPlotSeriesItem::~QwtPlotSeriesItem()
{
    delete d_data;
}

void QwtPlotSeriesItem::setOrientation( Qt::Orientation orientation )
{
    if ( d_data->orientation != orientation )
    {
        d_data->orientation = orientation;

        legendChanged();
        itemChanged();
    }
}

Qt::Orientation QwtPlotSeriesItem::orientation() const
{
    return d_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();
}