qwt_legend_data.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_legend_data.h"
#include "qwt_text.h"
#include "qwt_graphic.h"

QwtLegendData::QwtLegendData()
{
}

QwtLegendData::~QwtLegendData()
{
}

void QwtLegendData::setValues( const QMap< int, QVariant >& map )
{
    m_map = map;
}

const QMap< int, QVariant >& QwtLegendData::values() const
{
    return m_map;
}

bool QwtLegendData::hasRole( int role ) const
{
    return m_map.contains( role );
}

void QwtLegendData::setValue( int role, const QVariant& data )
{
    m_map[role] = data;
}

QVariant QwtLegendData::value( int role ) const
{
    if ( !m_map.contains( role ) )
        return QVariant();

    return m_map[role];
}

bool QwtLegendData::isValid() const
{
    return !m_map.isEmpty();
}

QwtText QwtLegendData::title() const
{
    QwtText text;

    const QVariant titleValue = value( QwtLegendData::TitleRole );
    if ( titleValue.canConvert< QwtText >() )
    {
        text = qvariant_cast< QwtText >( titleValue );
    }
    else if ( titleValue.canConvert< QString >() )
    {
        text.setText( qvariant_cast< QString >( titleValue ) );
    }

    return text;
}

QwtGraphic QwtLegendData::icon() const
{
    const QVariant iconValue = value( QwtLegendData::IconRole );

    QwtGraphic graphic;
    if ( iconValue.canConvert< QwtGraphic >() )
    {
        graphic = qvariant_cast< QwtGraphic >( iconValue );
    }

    return graphic;
}

QwtLegendData::Mode QwtLegendData::mode() const
{
    const QVariant modeValue = value( QwtLegendData::ModeRole );
    if ( modeValue.canConvert< int >() )
    {
        const int mode = qvariant_cast< int >( modeValue );
        return static_cast< QwtLegendData::Mode >( mode );
    }

    return QwtLegendData::ReadOnly;
}