static QgsFeatureRenderer* readOldGraduatedSymbolRenderer( const QDomNode& rnode, QgsWkbTypes::GeometryType geomType )
{
QDomNode modeNode = rnode.namedItem( "mode" );
QString modeValue = modeNode.toElement().text();
QDomNode classnode = rnode.namedItem( "classificationfield" );
QString classificationField = classnode.toElement().text();
QgsGraduatedSymbolRenderer::Mode m = QgsGraduatedSymbolRenderer::Custom;
if ( modeValue == "Empty" )
{
m = QgsGraduatedSymbolRenderer::Custom;
}
else if ( modeValue == "Quantile" )
{
m = QgsGraduatedSymbolRenderer::Quantile;
}
else //default
{
m = QgsGraduatedSymbolRenderer::EqualInterval;
}
// load ranges and symbols
QgsRangeList ranges;
QDomNode symbolnode = rnode.namedItem( "symbol" );
while ( !symbolnode.isNull() )
{
QgsSymbol* symbol = readOldSymbol( symbolnode, geomType );
if ( symbol )
{
QgsOldSymbolMeta meta = readSymbolMeta( symbolnode );
double lowerValue = meta.lowerValue.toDouble();
double upperValue = meta.upperValue.toDouble();
QString label = meta.label;
if ( label.isEmpty() )
label = QString( "%1 - %2" ).arg( lowerValue, -1, 'f', 3 ).arg( upperValue, -1, 'f', 3 );
ranges.append( QgsRendererRange( lowerValue, upperValue, symbol, label ) );
}
symbolnode = symbolnode.nextSibling();
}
// create renderer
QgsGraduatedSymbolRenderer* r = new QgsGraduatedSymbolRenderer( classificationField, ranges );
r->setMode( m );
return r;
}
QgsGraduatedSymbolRenderer::QgsGraduatedSymbolRenderer( const QgsGraduatedSymbolRenderer& other )
{
mMode = other.mMode;
mGeometryType = other.mGeometryType;
mClassificationField = other.mClassificationField;
const QList<QgsSymbol*> s = other.symbols();
for ( QList<QgsSymbol*>::const_iterator it = s.begin(); it != s.end(); ++it )
{
addSymbol( new QgsSymbol( **it ) );
}
updateSymbolAttributes();
}
QgsGraduatedSymbolRenderer *QgsGraduatedSymbolRenderer::clone() const
{
QgsGraduatedSymbolRenderer *r = new QgsGraduatedSymbolRenderer( mAttrName, mRanges );
r->setMode( mMode );
if ( mSourceSymbol )
r->setSourceSymbol( mSourceSymbol->clone() );
if ( mSourceColorRamp )
{
r->setSourceColorRamp( mSourceColorRamp->clone() );
}
r->setUsingSymbolLevels( usingSymbolLevels() );
r->setDataDefinedSizeLegend( mDataDefinedSizeLegend ? new QgsDataDefinedSizeLegend( *mDataDefinedSizeLegend ) : nullptr );
r->setLabelFormat( labelFormat() );
r->setGraduatedMethod( graduatedMethod() );
copyRendererData( r );
return r;
}
QgsGraduatedSymbolRenderer* QgsGraduatedSymbolRenderer::clone() const
{
QgsGraduatedSymbolRenderer* r = new QgsGraduatedSymbolRenderer( mAttrName, mRanges );
r->setMode( mMode );
if ( mSourceSymbol.data() )
r->setSourceSymbol( mSourceSymbol->clone() );
if ( mSourceColorRamp.data() )
{
r->setSourceColorRamp( mSourceColorRamp->clone() );
r->setInvertedColorRamp( mInvertedColorRamp );
}
r->setUsingSymbolLevels( usingSymbolLevels() );
r->setLabelFormat( labelFormat() );
r->setGraduatedMethod( graduatedMethod() );
copyRendererData( r );
return r;
}