QVariant QgsGraduatedSymbolRendererModel::data( const QModelIndex &index, int role ) const
{
if ( !index.isValid() || !mRenderer ) return QVariant();
const QgsRendererRange range = mRenderer->ranges().value( index.row() );
if ( role == Qt::CheckStateRole && index.column() == 0 )
{
return range.renderState() ? Qt::Checked : Qt::Unchecked;
}
else if ( role == Qt::DisplayRole || role == Qt::ToolTipRole )
{
switch ( index.column() )
{
case 1:
{
int decimalPlaces = mRenderer->labelFormat().precision() + 2;
if ( decimalPlaces < 0 ) decimalPlaces = 0;
return QLocale().toString( range.lowerValue(), 'f', decimalPlaces ) + " - " + QLocale().toString( range.upperValue(), 'f', decimalPlaces );
}
case 2:
return range.label();
default:
return QVariant();
}
}
else if ( role == Qt::DecorationRole && index.column() == 0 && range.symbol() )
{
const int iconSize = QgsGuiUtils::scaleIconSize( 16 );
return QgsSymbolLayerUtils::symbolPreviewIcon( range.symbol(), QSize( iconSize, iconSize ) );
}
else if ( role == Qt::TextAlignmentRole )
{
return ( index.column() == 0 ) ? Qt::AlignHCenter : Qt::AlignLeft;
}
else if ( role == Qt::EditRole )
{
switch ( index.column() )
{
// case 1: return rangeStr;
case 2:
return range.label();
default:
return QVariant();
}
}
return QVariant();
}
static bool _rangesByLower( const QgsRendererRange &a, const QgsRendererRange &b )
{
return a.lowerValue() < b.lowerValue() ? -1 : 0;
}
bool QgsRendererRange::operator<( const QgsRendererRange &other ) const
{
return
lowerValue() < other.lowerValue() ||
( qgsDoubleNear( lowerValue(), other.lowerValue() ) && upperValue() < other.upperValue() );
}
QString QgsRendererRangeLabelFormat::labelForRange( const QgsRendererRange &range ) const
{
return labelForRange( range.lowerValue(), range.upperValue() );
}
